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Abstract book for the 15th MIKLÓS IVÁNYI INTERNATIONAL PHD & DLA SYMPOSIUM


Abstract book for the 15th MIKLÓS IVÁNYI INTERNATIONAL PHD & DLA SYMPOSIUM

ARCHITECTURAL, ENGINEERING AND INFORMATION SCIENCES

Edited by Prof. Dr. Péter IVÁNYI

Pollack Press Faculty of Engineering and Information Technology University of Pécs


© University of Pécs, Hungary published 2019 by Pollack Press Faculty of Engineering and Information Technology University of Pécs Pécs, Boszorkány u 2, H-7624, Hungary Pollack Press is an imprint of University of Pécs ISBN 978-963-429-449-8

Cover page: Gábor Sipos


Contents Salute Foreword International Scientific Committee Conference program

I

Plenary lectures

1

Third generation computational fluid dynamics: examples of adaptive Cartesian simulations with the AMROC framework R. DEITERDING

2

Journal Publication: An Editor’s Overview B.H.V. TOPPING

II

Architecture

1

Schrumpfende Stadt as a city in transition B. SROKA

2

Simplification method for energy building simulation S. ELHADAD, B. BARANYAI, J. GYERGYÁK, I. KISTELEGDI

3

The North Printing House: An ecological architecture model of combining localization, traditionalization and modern technology G. QIANG, E.SZ. ZOLTÁN, C. HUI

4

Renaissance of the ruins – Give modern functionality to architectural relics K. XUE, G. MEDVEGY, Z. YUFANG

5

The spatio-temporality of a public space by observing the behaviours of its users, case of Sidi Bou Said O. BEN DHAOU

6

Categories and characteristics of vernacular architecture in Chongqing S. YONGTING, A.M. TAMÁS, G. SZTRANYÁK i


7

‘Car race’ with buildings... ‘cube house’ refurbishment in Hungary - A new design approach in the framework of Solar Decathlon 19 competition M. ALI, I. KISTELEGDI

8

The potential inherent in BIM-based urban models O. RÁK, N. BAKAI, Á. BORSOS, P. IVÁNYI

9

The urban memory and the identity of place: the requalification of the ex-European city Biskra, Algeria H. BARBARA, T. MOLNÁR

10

Optimal office building design method elaboration using the Energy Design Synthesis method D. ZETZ, I. KISTELEGDI, ZS. ERCSEY

11

Design for communities and acceptance E.ZS. PANCSA, F. KISS

12

Design and research on regeneration of historic block buildings based on the concept of symbiosis H.W. PAN

13

Enlightenment from street art activities in urban public space H.H. HE, J. GYERGYÁK

14

Exploring the relationship between child obesity and green space in England Q.C. HE, P. BRINDLEY

15

Metamorphosis of water in architectural thinking G. HECKENAST, M. FERENCZ, A. KERTÉSZ

16

Family house design optimisation by application of the energy design synthesis method K.R. HORVÁTH, I. KISTELEGDI, ZS. ERCSEY, Z. KOVÁCS

17

Research on the reuse of interior space in historic buildings - Pinghe Packing Factory exhibition area design in Wuhan Design Day and the 5th Design Biennale in 2019 ZK. HUANG, G. ZOBOKI, W. XIONG

18

Protection and renewal of Chinese ancient villages based on sustainable background H. CAO, A.M. TAMÁS, G. SZTRANYÁK

19

An overview of developing energy prototype in bottom-up construction shelters R. IBRAHIM, B. BARANYAI, T.J. KATONA

20

The rehabilitation of the historic commercial center of the old city of Aleppo after war - the methodology of the Aga Khan Trust for culture S. IBRAHIM, T. MOLNÁR

21

Identification and restoration of the traditional watermills in the Lipjan region B. JAGXHIU, H. ÇADRAKU ii


22

Renovation versus new construction - Innovative solutions in sustainable architecture: Solar Decathlon 2019 J.G. SZIGONY, B. KÓSA, T. KONDOR

23

Recycled national identity H. JUHÁSZ, T. KONDOR, B. KÓSA

24

Diving center in Gyékényes, Hungary S. JURDIK, K. KOVÁCS-ANDOR

25

Aerodynamic shaping of a passively ventilated industry facility A. KATONA, I. KISTELEGDI

26

Development of an area where nature and tourism meets: Tisza backwater visitor centre L.A. GYÜRE, K. KOVÁCS-ANDOR

27

Inspiration of the potential of atypical residential area - A practice design study at Roissypole C. LU, T. ZHAO, H. HE, Á. BORSOS, J. GYERGYÁK

28

Safe zones as a precautionary architectural and urban solution for potential civilian displacement disasters S.M. MAITEH, E.SZ. ZOLTÁN

29

People with dementia as active participants in researches related to built environment F. MARX, D. RÉTFALVI

30

Simulation-supported design of high-rise office building envelope in moderate climate B. NAILI, I. KISTELEGDI, I. HÁBER

31

University of Pécs Western campus – Medical School development P. PAÁRI, J. GYERGYÁK, P. SEBESTYÉN

32

Adaptive reuse – methods and difficulties in practice T. RÁCZ

33

Validation of a building environmental analysis tool based on real field measurements in a hot and dry climate region M. RAIS, A. BOUMERZOUG

34

Research on the development of public art in Beijing subway public space C. REN, G. MEDVEGY

35

Parametric design workshops — Teaching geometry, programming and architecture on an experience-based way R. SÁRKÖZI

36

Under the perspective of community autonomy: the study mode of the intervention of public art into local renewal S.S. LIU, S.Z. ZHANG iii


37

Making of fluid public heritage space – Case study: the historical Al-Merjeh square in the city center of Damascus S. IBRAHIM, T. MOLNÁR

38

Modernization imposed: Som’s practice in Asia – Case studies of Jakarta, Kuala lumpur and Wuhan K. TU, A. REITH, J. LIU

39

Application research of modular design in modern residence W. MENGYANG

40

Architectural visual design of contemporary era J. XIN, G. MEDVEGY

41

A feeling of awareness – site, history and human Q. ZHANG, A. HUTTER

42

Research on coastal landscape design of Mingzhu bay in Nansha, Guangzhou Z.X. LIANG

43

Energy efficiency / new types of energy spaces Z. ZRENA, E. SZÜCS, G. GAZDAG, B. KÓSA, T. KONDOR

44

Research on the planning strategy of cultural and creative industrial park with Northeast regional characteristics L. ZHAO, A.T. KERTÉSZ

45

Urban design meets health - battle against mosquitos, case study in Pécs J. GYERGYÁK, V. BARACSI

46

The lighting design and the visual comfort in therapeutic centers N. SADOUD, E.SZ. ZOLTÁN

47

Viewpoints of making heritage place inventory through the example of the Museum of Applied Arts K.L. SEIDL

48

The heritage and landscape reconstruction of the Intercisa Castellum in Dunaújváros N. PINTÉR, J.G. SZIGONY

49

Thermal analyses of tensile structure of the Expo Center in Pécs S. NAGY

III

Civil engineering

50

Investigation of the effect of formwork shape on packing density of aggregate K.A. KÁROLYFI, D. HARRACH, F. PAPP

51

Comparative study of moment resisting frames system and dual shear walls-frames system using ETABS 2016 A. ABOU LTEAF, I. GULIAS iv


52

Correlations between dynamic penetration test results and coarse-grained soils characteristics E. KUCOVÁ

53

Inverse determination of material properties of timber beams reinforced with CFRP using load-deflection data K. SAAD, A. LENGYEL

54

Seismic retrofit of steel frame structures M. ISMAIL

55

Analysis and cross section development of cold-formed steel rectangular hollow flange beams N. EID, A.L. JOÓ

56

Composite steel and RPC testing P. MICHALEK

57

Estimation of capillary rise in unsaturated gypsums sand soils S. ALSAMIA, M.SH. MAHMOOD, A. AKHTARPOUR

58

Review of using neural networks in traffic safety G. ALDABAIBEH, L. KISGYÖRGY

59

Overview and analysis of the overheating effect in Sudanese modern buildings S.I.A. ALI, Z. SZALAY

60

Investigation of the warping torsion of a press machine A. ERDŐS, K. JÁRMAI

61

Predicting the effect of load variation in an individual wastewater treatment unit B. BÁBA, T. KARCHES

62

The impact of hydropeaking on sediment transport D. BUCEK, P. ŠULEK, M. ORFÁNUS, P. DUŠICKA

63

Analyzing the impact of intake structure modifications on the distribution of flow at a low pressure SHPP L. BYTCANKOVA, J. RUMANN

64

Laser tracker performance verification with calibrated steel bar R. CHOLEVA, A. KOPÁČIK

65

Present condition analysis of sewer network in urban catchments R. CSICSAIOVÁ, I. MARKO, J. HRUDKA, I. ŠKULTÉTYOVÁ, Š. STANKO

66

Climate change impact on runoff in Boca and Ipoltica River basins in Slovakia G. FÖLDES, M.M. LABAT, S. KOHNOVÁ, K. HLAVCOVÁ

67

Adaptive data parameterization of baseflow and flashflood models of an ungaged watershed G. ÁMON, K. BENE v


68

Microscopic vehicle emission modelling using GAMLSS approach H. HAJMOHAMMADI, G. MARRA, B. HEYDECKER

69

Experimental investigation of fire resistance of glulam beams L. KUCÍKOVÁ, T. JANDA, M. ŠEJNOHA, J. SÝKORA

70

Hydrodynamic assessment of combined sewerage overflow chamber in Banská Bystrica M. ŠUTÚŠ, J. HRUDKA, G. RÓZSA, I. ŠKULTÉTYOVÁ, Š. STANKO

71

Laboratory analysis of the surface runoff from an urbanized area I. MARKO, R. CSICSAIOVÁ, J. HRUDKA, I. ŠKULTÉTYOVÁ, Š. STANKO

72

Numerical analysis of composite slim-floor beams W. MEFLEH, N. KOVÁCS

73

Measures for flood discharge transformation on the Ondava River J. MYDLA, A. ŠOLTÉSZ, M. ORFÁNUS

74

Experimental assessment of effects of secondary stilling basin on energy dissipation at the Hricov Water Structure M. PAVUCEK, J. RUMANN

75

Application of waste management in the smart city G. RÓZSA, K. LUKÁCOVÁ, J. HRUDKA, M. ŠUTÚŠ, Š. STANKO, I. ŠKULTÉTYOVÁ

76

Assessment the water replenishment of the Drava floodplain oxbow A. SALEM, J. DEZSŐ, M. EL-RAWY

77

Phase-field modeling of glass fragmentation J. SCHMIDT

78

Hydraulic assessment of the impact of the closure structure realization on the Klátov river branch on the groundwater in the adjacent territory A. ŠOLTÉSZ, D. BAROKOVÁ, M. CERVENANSKÁ, Z.D. SHENGA

79

Definition of structural number of motorway pavement in Hungary I. SZENTPÉTERI

80

Analysis of shear contact between wrapped layout of fibre concrete and reinforced concrete M. VAVRUŠ, P. KOTEŠ

81

Improving the failure behavior and reliability of indeterminate FRP-RC flexural elements using steel bars in critical sections A. SAKR, Z. ORBÁN

82

Assessment of reinforced concrete slab of historical structures by the Yield-line method R. MAHROUSEH, Z. ORBÁN

83

Correlation between dynamic and cone penetration test V. JÓZSA vi


IV

Informatics

84

Testing output variables for sensitivity study of nonlinear vibration systems F. HAJDU, GY. MOLNÁRKA

85

AI based detection of gas hydrate formation in the field I. BÖLKENY, L. CZAP

86

Keys and functional dependencies in incomplete databases with limited domains M. ALATTAR, A. SALI

87

Extending P4 language with asynchronous compression A. GERELTSETSEG, M. TEJFEL

88

Modelling of agent needs using artificial intelligence and Maslov’s hierarchy of needs A. BALAN, K. JEDRASIAK, A. GALUSZKA, C. LUNGOCI, E. PROBIERZ

89

Search space reduction in the progressive algorithm for automated employee scheduling B. PINTÉR, B.A. KŐVÁRI

90

Application of software defined networks in vehicular ad-hoc networks S.I. BOUCETTA, Z.C. JOHANYÁK

91

Traffic load simulation for different sensor placements L. HAJDU, D. BALÁZS, M. KRÉSZ

92

Improving optimization using adaptive algorithms L. KOTA, K. JÁRMAI

93

Software development for managing the student attendance lists M. DANUT, C. LUNGOCI, E. HELEREA

94

Obstacles of integer programming in shift scheduling M.L. MOLNAR, B.A. KOVARI

95

Optimal office building layout generation with backtracking to support energy design synthesis P. NOVÁK, I. KISTELEGDI, ZS. ERCSEY

96

New scheme for enhanced energy efficiency consumption based on LPWAN H. RAJAB, T. CINKLER

97

Distributed machine learning using data parallelism on mobile platform M. SZABÓ

98

The relevance of preprocessing approaches in DTW based online signature verification C.L. SZÜCS, B. KÖVÁRI

99

The first step to axiom-based property verification of P4 programs G. TÓTH, M. TEJFEL

100

Cryptography schemes for improving the security in large databases Y. YAN vii


101

Alternative methods for controlling drones P. MÜLLER, Á. SCHIFFER, Z. SÁRI, B. TUKORA, I. JANCSKÁRNÉ ANWEILER, G. VÁRADY

102

Stability and movement analysis with exoskeleton P. MÜLLER, Á. SCHIFFER

103

Design and implementation of a machine-learning based image classification system S. TAKÁCS, Z. SÁRI, I. JANCSKÁRNÉ ANWEILER, G. VÁRADY, Á. SCHIFFER, B. TUKORA, P. MÜLLER

104

Monocular method of depth estimation G. VÁRADY, T. STORCZ, ZS. ERCSEY

105

Image parameters of drone cameras G. VÁRADY, P. MÜLLER, Á. SCHIFFER, Z. SÁRI, B. TUKORA, I. JANCSKÁRNÉ ANWEILER

106

Numerical solution of elliptic and parabolic PDEs with the application of discrete operators on graphs Z. VÍZVÁRI, M. KLINCSIK, Z. SÁRI, P. ODRY

V

Other engineering fields

107

Linear and nonlinear dynamical analyses of a crane model M. HMOUMEN, T. SZABÓ

108

Relationship between number of modern lamps and level of radiated and conducted noise emissions R. ISTÓK

109

Enhance thermal efficiency of parabolic trough collector using Tungsten / Syltherm 800 nanofluid O. AL-ORAN, F. LEZSOVITS

110

Combined electro-thermal model of a PV system A.K. ABDULRAZZAQ, G. BOGNÁR, B. PLESZ

111

Theoretical and numerical comparison study of aluminum foam sandwich structures A. AL-FATLAWI, K. JÁRMAI, G. KOVÁCS

112

Prediction and numerical simulation of the residual stresses in pipes with multi-pass welds M.H. ALHAFADHI, G. KRALLICS

113

Reaction kinetic examination of production of aromatic hydrocarbons via thermocatalytic cracking of biomass and polystyrene A. ZSEMBERI, Z.K. SIMÉNFALVI, Á.B. PALOTÁS

114

Lower bound definition for working time in crew scheduling problem A. TÓTH, M. KRÉSZ viii


115

Building services design focusing on comfort and energy B. CAKÓ, L. LENKOVICS, A. ÓZDI, M. EÖRDÖGHNÉ MIKLÓS

116

Comparison and evaluation of ADAS utilization at roundabouts H. CAO

117

Supplier evaluation with artificial intelligence C. SIPOS, J. MENYHÁRT

118

Optimization capabilities of DC/DC step down converter with CasADi M. CSIZMADIA, M. KUCZMANN

119

Electromagnetic interference emission simulation of a BLDC motor D. ERDŐSY, T. BODOLAI

120

Identification and segmentation of geometric shapes from point clouds R. HONTI

121

Dynamic simulation control in a cryogenic distillation column V. KÁLLAI, G.L. SZEPESI, P. MIZSEY

122

Experimental study on Pool boiling heat transfer of MgO nanoparticles based water nanofluid from a typical horizontal heated tube M.S. KAMEL, F. LEZSOVITS

123

The role of green roofs in the quality of the house L. LENKOVICS, B. CAKÓ, B. LENKOVICS, M. EÖRDÖGHNÉ MIKLÓS

124

The efficiency of different types of granular activated carbon in pesticide removal M. MARTON, J. ILAVSKÝ, D. BARLOKOVÁ

125

Tensor product transformation based modelling of induction machine Z. NÉMETH, M. KUCZMANN

126

CFD analysis on a direct spring-loaded safety valve to determine flow forces T. PUSZTAI, Z.K. SIMÉNFALVI

127

Case study of a BIM-based pool refurbishment project focusing on hydraulic engineering O. RÁK, P.M. MÁDER, J. ETLINGER, M. EÖRDÖGHNÉ MIKLÓS, M. ZAGORÁCZ

128

Integrated cooling solution for concentrator photovoltaic cells G. RÓZSÁS, GY. BOGNÁR, G. TAKÁCS, B. PLESZ

129

New fields and possibilities in strategic sourcing CS. SIPOS

130

Magnetic braking method development for dynamic applications L. KAZUP, A. VÁRADINÉ SZARKA

131

The examination and optimization of 3D printing (FDM) parameters D. TÓTH, M. TISZA, P.Z. KOVÁCS ix


Author Index

Keyword Index

x


Salute The 15th Miklós Iványi International PhD & DLA Symposium is one of the most important scientific events at the Faculty of Engineering and Information Technology, University of Pécs. The Faculty hosts the meeting for young researchers and their professors. After the loss of the founder of this Symposium, Prof. Miklós Iványi, it has been decided to honour his memories and therefore this event will be named as “Miklós Iványi International PhD & DLA Symposium”. This is the 15th year that the PhD & DLA Symposium gives an opportunity to present the achievements of young researchers, to exchange information about the researches of the international partner institutions and to exchange valuable professional experiences and cultivate real friendships. At the end let me greet the participants of the 15th Miklós Iványi International PhD & DLA Symposium and express my thanks to the organizers for their activity and to the participants of the former and this year’s PhD & DLA Symposium to present papers. At the same time I wish you the best to continue with successful work.

Prof. Dr. Habil MEDVEGY Gabriella, DLA Dean Faculty of Engineering and Information Technology University of Pécs

xi


xii


Foreword The 15th Miklós Iványi International PhD & DLA Symposium is organized because it is thought that PhD&DLA students need a special forum in addition to their PhD&DLA program to present the results of their ongoing research. Furthermore the results should be discussed collecting proposals how to continue the work. The First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Nineth, Tenth Eleventh, Twelfth, Thirteenth and Fourteenth International PhD&DLA Symposia were organized in 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018 and it is important to continue this tradition. Objectives of the PhD&DLA Symposium: • to provide a forum for PhD&DLA students in engineering to present the progress of their work; • to discuss the results of the ongoing PhD&DLA studies in order to support the future activity; • to give the opportunity for PhD&DLA students to establish contact for international communication; • to compare PhD&DLA studies in various countries. The system of this symposium is to have oral presentations by the PhD&DLA students themselves, which are immediately followed by discussions that are scheduled in the program. Main results of the studies are summarized in the Pollack Periodica (an International Journal for Engineering and Information Sciences) published by Akadémiai Kiadó. On behalf of the Organizing Committee, I would like to express thanks to the University of Pécs, Faculty of Engineering and Information Technology for hosting the Symposium. Prof. Dr. Habil Péter IVÁNYI, PhD

xiii


xiv


International Scientific Committee BORSOS, Ágnes BRUGGI, Matteo BUJNAK, Jan CSÉBFALVI Anikó DEITERDING, Ralf DEVETAKOVIC, Mirjana FOLIC, Radomir FÜZI, János GYERGYÁK, János HUTTER, Ákos IVÁNYI Amália IVÁNYI Péter JASHARI-KAJTAZI, Teuta KATONA, Tamás KÉSZ, Miklós KISTELEGDI, István

Hungary Italy Slovakia Hungary United Kingdom Serbia Serbia Hungary Hungary Hungary Hungary Hungary Kosovo Hungary Hungary Hungary

xv

KÓCZY László KOSEC, Gregor KOVÁCS György KÖVESDI Balázs KREJCI, Tomas LÓGÓ, János LUNGOCI, Carmen Mihaela MEDVEGY Gabriella MOLNÁR, Tamás ORBÁN Zoltán SIERPINSKI, Grzegorz SOLTÉSZ, Andrej SZŰCS István TÍMÁR, András TOPPING, Barry VÁRADY Géza

Hungary Slovenia Hungary Hungary Czech Republic Hungary Romania Hungary Hungary Hungary Poland Slovakia Hungary Hungary United Kingdom Hungary


Conference program

Day 1: Monday 28 Oct 2019 08:00-16:00 Registration desk open 09:00-09:10 Conference opening, 09:10-10:00 Opening plenary lecture by Prof. Ralf DEITERDING, Lecture 1 10:00-10:50 Plenary lecture by Prof. Barry H.V. TOPPING, Lecture 2 10:50-11:00 Group photo 11:00-13:00 Conference session 13:00-14:00 Lunch - admission by ticket 14:00-16:00 Conference session 16:00-16:30 Coffee / Tea Break 16:30-18:45 Conference session 20:00-22:00 Conference dinner, Champagne House (Pezsgőház) - admission by ticket

Day 2: Tuesday 29 Oct 2019 08:00-11:00 Registration desk open 08:30-10:30 Conference session 10:30-11:00 Coffee / Tea Break 11:00-13:00 Conference session 13:00-14:00 Lunch - admission by ticket

1


Conference program

Day 1, Monday Time 09:00-10:50

Time 10:50-11:00 11:00-13:00

13:00-14:00 14:00-16:00

16:00-16:30 16:30-18:45

Time 08:30-10:30 10:30-11:00 11:00-13:00 13:00-14:00

Room A010 Conference opening, Opening and plenary lectures page 3

Room 1 Architecture 1a page 4

Architecture 2 page 8

Architecture 3a page 11

Room 1 Architecture 4 page 15 Architecture 5 page 18

Day 1, Monday Room 2 Room 3 Group photo Engineering 1 Electrical page 5 engineering 1 page 6 Lunch Civil Informatics 2 Engineering 2 page 10 page 9 Coffee Break Civil Engineering 3 Engineering 3 page 13 page 12

Day 2, Tuesday Room 2 Civil Engineering 4 page 16 Coffee Break Civil Engineering 5 page 19 Lunch

2

Room 4 Architecture 1b page 7

Architecture 3b page 14

Room 3 Informatics 4 page 17 Informatics 5 page 20


Day 1: Monday, 28 Oct 2019: AM, Room A010

09:00-10:50 Conference opening Professor P. Iványi University of Pécs Professor G. Medvegy Dean of the Faculty of Engineering and Information Technology University of Pécs Opening and plenary lecture Lecture 1 Third generation computational fluid dynamics: examples of adaptive Cartesian simulations with the AMROC framework R. DEITERDING Lecture 2 Journal Publication: An Editor’s Overview B.H.V. TOPPING

10:50-11:00 Group photo in front of the building

3


Day 1: Monday, 28 Oct 2019: AM, Room 1

11:00-13:00 Architecture 1a Chaired by Prof. MEDVEGY and Prof. DEVETAKOVIĆ P-48 The heritage and landscape reconstruction of the Intercisa Castellum in Dunaújváros N. PINTÉR, J.G. SZIGONY P-47 Viewpoints of making heritage place inventory through the example of the Museum of Applied Arts K.L. SEIDL P-21 Identification and restoration of the traditional watermills in the Lipjan region B. JAGXHIU, H. ÇADRAKU P-20 The rehabilitation of the historic commercial center of the old city of Aleppo after war the methodology of the Aga Khan Trust for culture S. IBRAHIM, T. MOLNÁR P-18 Protection and renewal of Chinese ancient villages based on sustainable background H. CAO, A.M. TAMÁS, G. SZTRANYÁK P-17 Research on the reuse of interior space in historic buildings - Pinghe Packing Factory exhibition area design in Wuhan Design Day and the 5th Design Biennale in 2019 ZK. HUANG, G. ZOBOKI, W. XIONG P-12 Design and research on regeneration of historic block buildings based on the concept of symbiosis P. HAOWEI P-4 Renaissance of the ruins – Give modern functionality to architectural relics K. XUE, G. MEDVEGY, Z. YUFANG

13:00-14:00: Lunch

4


Day 1: Monday, 28 Oct 2019: AM, Room 2

11:00-13:00 Engineering 1 Chaired by Prof. JÁRMAI P-69 Experimental investigation of fire resistance of glulam beams L. KUCÍKOVÁ, T. JANDA, M. ŠEJNOHA, J. SÝKORA P-107 Linear and nonlinear dynamical analyses of a crane model M. HMOUMEN, T. SZABÓ P-64 Laser tracker performance verification with calibrated steel bar R. CHOLEVA, A. KOPÁČIK P-126 CFD analysis on a direct spring-loaded safety valve to determine flow forces T. PUSZTAI, Z.K. SIMÉNFALVI P-130 Magnetic braking method development for dynamic applications L. KAZUP, A. VÁRADINÉ SZARKA P-112 Prediction and numerical simulation of the residual stresses in pipes with multi-pass welds M.H. ALHAFADHI, G. KRALLICS P-131 The examination and optimization of 3D printing (FDM) parameters D. TÓTH, M. TISZA, P.Z. KOVÁCS P-111 Theoretical and numerical comparison study of aluminum foam sandwich structures A. AL-FATLAWI, K. JÁRMAI, G. KOVÁCS

13:00-14:00: Lunch

5


Day 1: Monday, 28 Oct 2019: AM, Room 3

11:00-13:00 Electrical engineering 1 Chaired by Prof. HELEREA and Dr. LUNGOCI P-128 Integrated cooling solution for concentrator photovoltaic cells G. RÓZSÁS, GY. BOGNÁR, G. TAKÁCS, B. PLESZ P-125 Tensor product transformation based modelling of induction machine Z. NÉMETH, M. KUCZMANN P-119 Electromagnetic interference emission simulation of a BLDC motor D. ERDŐSY, T. BODOLAI P-118 Optimization capabilities of DC/DC step down converter with CasADi M. CSIZMADIA, M. KUCZMANN P-110 Combined electro-thermal model of a PV system A.K. ABDULRAZZAQ, G. BOGNÁR, B. PLESZ P-109 Enhance thermal efficiency of parabolic trough collector using Tungsten / Syltherm 800 nanofluid O. AL-ORAN, F. LEZSOVITS P-108 Relationship between number of modern lamps and level of radiated and conducted noise emissions R. ISTÓK P-84 Testing output variables for sensitivity study of nonlinear vibration systems F. HAJDU, GY. MOLNÁRKA

13:00-14:00: Lunch

6


Day 1: Monday, 28 Oct 2019: AM, Room 4

11:00-12:45 Architecture 1b Chaired by DR. BORSOS P-30 Simulation-supported design of high-rise office building envelope in moderate climate B. NAILI, I. KISTELEGDI, I. HÁBER P-2 Simplification method for energy building simulation S. ELHADAD, B. BARANYAI, J. GYERGYÁK, I. KISTELEGDI P-14 Exploring the relationship between child obesity and green space in England Q.C. HE, P. BRINDLEY P-11 Design for communities and acceptance E.ZS. PANCSA, F. KISS P-9 The urban memory and the identity of place: the requalification of the ex-European city Biskra, Algeria H. BARBARA, T. MOLNÁR P-127 Case study of a BIM-based pool refurbishment project focusing on hydraulic engineering O. RÁK, P.M. MÁDER, J. ETLINGER, M. EÖRDÖGHNÉ MIKLÓS, M. ZAGORÁCZ P-35 Parametric design workshops — Teaching geometry, programming and architecture on an experience-based way R. SÁRKÖZI

13:00-14:00: Lunch

7


Day 1: Monday, 28 Oct 2019: PM, Room 1

14:00-16:00 Architecture 2 Chaired by Dr. ZOLTÁN P-13 Enlightenment from street art activities in urban public space H.H. HE, J. GYERGYÁK P-34 Research on the development of public art in Beijing subway public space C. REN P-37 Making of fluid public heritage space – Case study: the historical Al-Merjeh square in the city center of Damascus S. IBRAHIM, T. MOLNÁR P-45 Urban design meets health - battle against mosquitos, case study in Pécs J. GYERGYÁK, V. BARACSI P-1 Schrumpfende Stadt as a city in transition B. SROKA P-28 Safe zones as a precautionary architectural and urban solution for potential civilian displacement disasters S.M. MAITEH, E.SZ. ZOLTÁN P-8 The potential inherent in BIM-based urban models O. RÁK, N. BAKAI, Á. BORSOS, P. IVÁNYI P-36 Under the perspective of community autonomy: the study mode of the intervention of public art into local renewal S.S. LIU, S.Z. ZHANG

16:00-16:30: Coffee break

8


Day 1: Monday, 28 Oct 2019: PM, Room 2

14:00-15:45 Civil Engineering 2 Chaired by Prof. SOLTÉSZ P-75 Application of waste management in the smart city G. RÓZSA, K. LUKÁCOVÁ, J. HRUDKA, M. ŠUTÚŠ, Š. STANKO, I. ŠKULTÉTYOVÁ P-71 Laboratory analysis of the surface runoff from an urbanized area I. MARKO, R. CSICSAIOVÁ, J. HRUDKA, I. ŠKULTÉTYOVÁ, Š. STANKO P-61 Predicting the effect of load variation in an individual wastewater treatment unit B. BÁBA, T. KARCHES P-62 The impact of hydropeaking on sediment transport D. BUCEK, P. ŠULEK, M. ORFÁNUS, P. DUŠICKA P-65 Present condition analysis of sewer network in urban catchments R. CSICSAIOVÁ, I. MARKO, J. HRUDKA, I. ŠKULTÉTYOVÁ, Š. STANKO P-67 Adaptive data parameterization of baseflow and flashflood models of an ungaged watershed G. ÁMON, K. BENE P-57 Estimation of capillary rise in unsaturated gypsums sand soils S. ALSAMIA, M.SH. MAHMOOD, A. AKHTARPOUR

16:00-16:30: Coffee break

9


Day 1: Monday, 28 Oct 2019: PM, Room 3

14:00-16:00 Informatics 2 Chaired by Dr. ERCSEY P-104 Monocular method of depth estimation G. VÁRADY, T. STORCZ, ZS. ERCSEY P-102 Stability and movement analysis with exoskeleton P. MÜLLER, Á. SCHIFFER P-106 Numerical solution of elliptic and parabolic PDEs with the application of discrete operators on graphs Z. VÍZVÁRI, M. KLINCSIK, Z. SÁRI, P. ODRY P-94 Obstacles of integer programming in shift scheduling M.L. MOLNAR, B.A. KOVARI P-117 Supplier evaluation with artificial intelligence C. SIPOS, J. MENYHÁRT P-114 Lower bound definition for working time in crew scheduling problem A. TÓTH, M. KRÉSZ P-89 Search space reduction in the progressive algorithm for automated employee scheduling B. PINTÉR, B.A. KŐVÁRI P-129 New fields and possibilities in strategic sourcing CS. SIPOS

16:00-16:30: Coffee break

10


Day 1: Monday, 28 Oct 2019: PM, Room 1

16:30-18:30 Architecture 3a Chaired by Dr. BORSOS P-46 The lighting design and the visual comfort in therapeutic centers N. SADOUD, E.SZ. ZOLTÁN P-29 People with dementia as active participants in researches related to built environment F. MARX, D. RÉTFALVI P-41 A feeling of awareness – site, history and human Q. ZHANG, A. HUTTER P-32 Adaptive reuse – methods and difficulties in practice T. RÁCZ P-6 Categories and characteristics of vernacular architecture in Chongqing S. YONGTING, A.M. TAMÁS, G. SZTRANYÁK P-15 Metamorphosis of water in architectural thinking G. HECKENAST, M. FERENCZ, A. KERTÉSZ P-40 Architectural visual design of contemporary era J. XIN, G. MEDVEGY P-39 Application research of modular design in modern residence W. MENGYANG

11


Day 1: Monday, 28 Oct 2019: PM, Room 2

16:30-18:45 Civil Engineering 3 Chaired by Prof. FOLIC and Prof. BALAZ P-60 Investigation of the warping torsion of a press machine A. ERDŐS, K. JÁRMAI P-56 Composite steel and RPC testing P. MICHALEK P-53 Inverse determination of material properties of timber beams reinforced with CFRP using load-deflection data K. SAAD, A. LENGYEL P-51 Comparative study of moment resisting frames system and dual shear walls-frames system using ETABS 2016 A. ABOU LTEAF, I. GULIAS P-55 Analysis and cross section development of cold-formed steel rectangular hollow flange beams N. EID, A.L. JOÓ P-72 Numerical analysis of composite slim-floor beams W. MEFLEH, N. KOVÁCS P-80 Analysis of shear contact between wrapped layout of fibre concrete and reinforced concrete M. VAVRUŠ, P. KOTEŠ P-81 Improving the failure behavior and reliability of indeterminate FRP-RC flexural elements using steel bars in critical sections A. SAKR, Z. ORBÁN P-82 Assessment of reinforced concrete slab of historical structures by the Yield-line method R. MAHROUSEH, Z. ORBÁN

12


Day 1: Monday, 28 Oct 2019: PM, Room 3

16:30-18:30 Engineering 3 Chaired by Prof. KOREN P-116 Comparison and evaluation of ADAS utilization at roundabouts H. CAO P-79 Definition of structural number of motorway pavement in Hungary I. SZENTPÉTERI P-68 Microscopic vehicle emission modelling using GAMLSS approach H. HAJMOHAMMADI, G. MARRA, B. HEYDECKER P-58 Review of using neural networks in traffic safety G. ALDABAIBEH, L. KISGYÖRGY P-91 Traffic load simulation for different sensor placements L. HAJDU, D. BALÁZS, M. KRÉSZ P-105 Image parameters of drone cameras G. VÁRADY, P. MÜLLER, Á. SCHIFFER, Z. SÁRI, B. TUKORA, I. JANCSKÁRNÉ ANWEILER P-101 Alternative methods for controlling drones P. MÜLLER, Á. SCHIFFER, Z. SÁRI, B. TUKORA, I. JANCSKÁRNÉ ANWEILER, G. VÁRADY P-120 Identification and segmentation of geometric shapes from point clouds R. HONTI

13


Day 1: Monday, 28 Oct 2019: PM, Room 4

16:30-18:00 Architecture 3b Chaired by Prof. KISTELEGDI P-33 Validation of a building environmental analysis tool based on real field measurements in a hot and dry climate region M. RAIS, A. BOUMERZOUG P-49 Thermal analyses of tensile structure of the Expo Center in Pécs S. NAGY P-10 Optimal office building design method elaboration using the Energy Design Synthesis method D. ZETZ, I. KISTELEGDI, ZS. ERCSEY P-16 Family house design optimisation by application of the energy design synthesis method K.R. HORVÁTH, I. KISTELEGDI, ZS. ERCSEY, Z. KOVÁCS P-19 An overview of developing energy prototype in bottom-up construction shelters R. IBRAHIM, B. BARANYAI, T.J. KATONA P-25 Aerodynamic shaping of a passively ventilated industry facility A. KATONA, I. KISTELEGDI

14


Day 2: Tuesday, 29 Oct 2019: AM, Room 1

08:30-10:30 Architecture 4 Chaired by Dr. GYERGYÁK P-5 The spatio-temporality of a public space by observing the behaviours of its users, case of Sidi Bou Said O. BEN DHAOU P-24 Diving center in Gyékényes, Hungary S. JURDIK, K. KOVÁCS-ANDOR P-26 Development of an area where nature and tourism meets: Tisza backwater visitor centre L.A. GYÜRE, K. KOVÁCS-ANDOR P-27 Inspiration of the potential of atypical residential area - A practice design study at Roissypole C. LU, T. ZHAO, H. HE, Á. BORSOS, J. GYERGYÁK P-31 University of Pécs Western campus – Medical School development P. PAÁRI, J. GYERGYÁK, P. SEBESTYÉN P-38 Modernization imposed: SOM’s practice in Asia – Case studies of Jakarta, Kuala Lumpur and Wuhan K. TU, A. REITH, J. LIU P-44 Research on the planning strategy of cultural and creative industrial park with Northeast regional characteristics L. ZHAO, A.T. KERTÉSZ P-42 Research on coastal landscape design of Mingzhu bay in Nansha, Guangzhou Z.X. LIANG

10:30-11:00: Coffee break

15


Day 2: Tuesday, 29 Oct 2019: AM, Room 2

08:30-10:30 Civil and other engineering 4 Chaired by Prof. KRUIS and Prof. JUTILA P-54 Seismic retrofit of steel frame structures M. ISMAIL P-83 Correlation between dynamic and cone penetration test V. JÓZSA P-52 Correlations between dynamic penetration test results and coarse-grained soils characteristics E. KUCOVÁ P-50 Investigation of the effect of formwork shape on packing density of aggregate K.A. KÁROLYFI, D. HARRACH, F. PAPP P-77 Phase-field modeling of glass fragmentation J. SCHMIDT P-113 Reaction kinetic examination of production of aromatic hydrocarbons via thermocatalytic cracking of biomass and polystyrene A. ZSEMBERI, Z.K. SIMÉNFALVI, Á.B. PALOTÁS P-122 Experimental study on Pool boiling heat transfer of MgO nanoparticles based water nanofluid from a typical horizontal heated tube M.S. KAMEL, F. LEZSOVITS P-121 Dynamic simulation control in a cryogenic distillation column V. KÁLLAI, G.L. SZEPESI, P. MIZSEY

10:30-11:00: Coffee break

16


Day 2: Tuesday, 29 Oct 2019: AM, Room 3

08:30-10:00 Informatics 4 Chaired by Prof. TOPPING and Dr. KREJCI P-103 Design and implementation of a machine-learning based image classification system S. TAKÁCS, Z. SÁRI, I. JANCSKÁRNÉ ANWEILER, G. VÁRADY, Á. SCHIFFER, B. TUKORA, P. MÜLLER P-97 Distributed machine learning using data parallelism on mobile platform M. SZABÓ P-95 Optimal office building layout generation with backtracking to support energy design synthesis P. NOVÁK, I. KISTELEGDI, ZS. ERCSEY P-92 Improving optimization using adaptive algorithms L. KOTA, K. JÁRMAI P-88 Modelling of agent needs using artificial intelligence and Maslov’s hierarchy of needs A. BALAN, K. JEDRASIAK, A. GALUSZKA, C. LUNGOCI, E. PROBIERZ P-85 AI based detection of gas hydrate formation in the field I. BÖLKENY, L. CZAP

10:30-11:00: Coffee break

17


Day 2: Tuesday, 29 Oct 2019: AM, Room 1

11:00-13:00 Architecture 5 Chaired by Dr. KONDOR P-59 Overview and analysis of the overheating effect in Sudanese modern buildings S.I.A. ALI, Z. SZALAY P-7 ‘Car race’ with buildings... ‘cube house’ refurbishment in Hungary - A new design approach in the framework of Solar Decathlon 19 competition M. ALI, I. KISTELEGDI P-3 The North Printing House: An ecological architecture model of combining localization, traditionalization and modern technology G. QIANG, E.SZ. ZOLTÁN, C. HUI P-43 Energy efficiency / new types of energy spaces Z. ZRENA, E. SZÜCS, G. GAZDAG, B. KÓSA, T. KONDOR P-23 Recycled national identity H. JUHÁSZ, T. KONDOR, B. KÓSA P-22 Renovation versus new construction - Innovative solutions in sustainable architecture: Solar Decathlon 2019 J.G. SZIGONY, B. KÓSA, T. KONDOR P-115 Building services design focusing on comfort and energy B. CAKÓ, L. LENKOVICS, A. ÓZDI, M. EÖRDÖGHNÉ MIKLÓS P-123 The role of green roofs in the quality of the house L. LENKOVICS, B. CAKÓ, B. LENKOVICS, M. EÖRDÖGHNÉ MIKLÓS

13:00-14:00: Lunch

18


Day 2: Tuesday, 29 Oct 2019: AM, Room 2

11:00-13:00 Civil engineering 5 Chaired by Prof. SOLTÉSZ P-63 Analyzing the impact of intake structure modifications on the distribution of flow at a low pressure SHPP L. BYTCANKOVA, J. RUMANN P-70 Hydrodynamic assessment of combined sewerage overflow chamber in Banská Bystrica M. ŠUTÚŠ, J. HRUDKA, G. RÓZSA, I. ŠKULTÉTYOVÁ, Š. STANKO P-73 Measures for flood discharge transformation on the Ondava River J. MYDLA, A. ŠOLTÉSZ, M. ORFÁNUS P-74 Experimental assessment of effects of secondary stilling basin on energy dissipation at the Hricov Water Structure M. PAVUCEK, J. RUMANN P-76 Assessment the water replenishment of the Drava floodplain oxbow A. SALEM, J. DEZSŐ, M. EL-RAWY P-78 Hydraulic assessment of the impact of the closure structure realization on the Klátov river branch on the groundwater in the adjacent territory A. ŠOLTÉSZ, D. BAROKOVÁ, M. CERVENANSKÁ, Z.D. SHENGA P-66 Climate change impact on runoff in Boca and Ipoltica River basins in Slovakia G. FÖLDES, M.M. LABAT, S. KOHNOVÁ, K. HLAVCOVÁ P-124 The efficiency of different types of granular activated carbon in pesticide removal M. MARTON, J. ILAVSKÝ, D. BARLOKOVÁ

13:00-14:00: Lunch

19


Day 2: Tuesday, 29 Oct 2019: AM, Room 3

11:00-13:00 Informatics 5 Chaired by Dr. SÁRI and Dr. VÁRADY P-90 Application of software defined networks in vehicular ad-hoc networks S.I. BOUCETTA, Z.C. JOHANYÁK P-87 Extending P4 language with asynchronous compression A. GERELTSETSEG, M. TEJFEL P-99 The first step to axiom-based property verification of P4 programs G. TÓTH, M. TEJFEL P-96 New scheme for enhanced energy efficiency consumption based on LPWAN H. RAJAB, T. CINKLER P-100 Cryptography schemes for improving the security in large databases Y. YAN P-86 Keys and functional dependencies in incomplete databases with limited domains M. ALATTAR, A. SALI P-98 The relevance of preprocessing approaches in DTW based online signature verification C.L. SZÜCS, B. KÖVÁRI P-93 Software development for managing the student attendance lists M. DANUT, C. LUNGOCI, E. HELEREA

13:00-14:00: Lunch

20


Plenary lectures


Lecture 1

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Lecture 1, 2019.

Third generation computational fluid dynamics: examples of adaptive Cartesian simulations with the AMROC framework R. DEITERDING Department of Aerospace Engineering, University of Southampton, United Kingdom

A trend in modern computational fluid dynamics (CFD) is the use of Cartesian meshes. Cartesian meshes can be generated automatically in parallel and are well suited for providing dynamic multi-resolution refinement, for instance, in the vicinity of embedded geometrically complex objects or based on important flow features. In our solver system AMROC we use implicit geometry representation with level set functions for representing possibly moving solid structures on the adapting Cartesian grid. On-the-fly coupling between CFD solvers and computational solid dynamics solvers for large deformations and six degree of freedom rigid body dynamics is available. The presentation will give an overview of the generic construction principles of AMROC and discuss a variety of applications. Utilizing different numerical schemes, slow flows interacting with flexible structures, aerodynamics around moving bodies, e.g., wind turbine blades, as well as supersonic shock and detonation wave simulations, driving for instance elastic-plastic structural deformation phenomena, will be discussed.


Lecture 2

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Lecture 2, 2019.

Journal Publication: An Editor’s Overview B.H.V. TOPPING1,2,3 1

Emeritus Professor of Computational Mechanics, Heriot-Watt University, Edinburgh, Scotland, UK 2 Honorary Professor, University of Pécs, Hungary 3 Co-Editor: Computers & Structures and Advances in Engineering Software

This presentation discusses the role of publishers, editors, editorial boards and reviewers as key players in the publication process. The contribution and influence of each of the key players is detailed and explained. This leads to a discussion of the process of publishing a journal paper, including the following: • Selecting a journal for submission of a paper; • Journal indices; • DOIs, Crossref, Scopus; • Realistic review and decision periods; • Preparing a paper for submission; • Pitfalls in a submission process; • Desk rejects; • The review process; • Typical journal rejection and acceptance rates; • Responding to editors and reviewers; • How to deal with rejection of a paper and other setbacks; and • Using COPE in matters of ethics. The presentation will be illustrated with helpful "dos" and "do nots" that will be of interest to authors both new and experienced. The most common errors in the submission of papers will be highlighted and advice given on how authors can avoid these.


Architecture


Paper 1

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 1, 2019.

Schrumpfende Stadt as a city in transition B. SROKA Instytut Rozwoju Miast i Regionów, Poland

Keywords: shrinking city, shrinkage, resilience, revitalization, city in transition Urban development pass through peculiar cyclic waves of a fall and growth. Interweaves of concentration and decentralization of development. Natural disasters, economical breakdowns and political turn-downs are constantly following cities. Unpredictable phenomenon of shrinkage is questioning a way of city renewal, economic, social and physical, booting up its transition. Population changes seen since 1980s (second demographic transition) are indicating a new way of slow-burn development. Linear process of decline turns into a new phase. Cities are shrinking, this process is replacing stable phase of growth observed since industrialization era. New threats are creating a sophisticated matrix of processes shaping the city: boom of decline after downfall of communism, industrialization, depopulation and finally urban flight. A disaster goes beyond its classical definition of natural one. New urbanization processes are questioning definition of development understood as permanent growth. Author seeks for general rules and laws of city re-development affected by the process of decline, that exploiting crisis to create city more livable. City in transition gives a unique opportunity to re-think its idea and principle of presence.


Paper 2

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 2, 2019.

Simplification method for energy building simulation S. ELHADAD1,2 , B. BARANYAI2 , J. GYERGYÁK3 , I. KISTELEGDI2 1

Department of Architecture, Faculty of Engineering, Minia University, Egypt Faculty of Engineering and Information Technology and János Szentágothai Research Center, University of Pécs, Hungary 3 Department of Architecture and Urban Planning, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2

Keywords: energy design, simulation, simplified model, thermal comfort It is important to know the capability of the simplification method in achieving the design objectives with less simulation effort, which helps the designers to choose an appropriate method among a number of approaches. While the optimal solution is traditionally identified through trial-and-error, for complex optimization problems that consists a great number of design variables, it might require extensive hours of computation at early design stage. The goal of this study is to simplify the models as possible with a proper energy performance and thermal comfort, taking into account outdoor climatic and local conditions and indoor climate requirements For this purpose, it is very important to define the internal conditions in terms of indoor temperatures and rates of ventilation. At the same time the outdoor conditions are of extreme importance, leading to different design and operating decisions. Present simulation techniques are either over-simplified and use only a deterministic method, or are highly complex stochastic models. Thus, four scenarios for the model simplification are simulated to obtain the acceptable model based on the comparison of energy performance and thermal comfort with the original model for the same period with weather data. The results show that the differences for heating demand of the different scenarios range from 9.21% to 13.59% compared to the original model while the differences are less than 2% for the cooling demand except one zone scenario (20%). For all scenarios, the differences in lighting demand less than 1%. The integrated approach of model simplification seems to be effective and efficient for thermal build simulation.

Acknowledgments The present scientific contribution is dedicated to the 650th anniversary of the foundation of the University of Pécs, Hungary. The first author would like to thank the Egyptian Ministry of Higher Education (MoHE) and Tempus Public Foundation for providing her the Stipendium Hungaricum Scholarship.


Paper 3

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 3, 2019.

The North Printing House: An ecological architecture model of combining localization, traditionalization and modern technology G. QIANG1 , E.SZ. ZOLTÁN2 , C. HUI1 1

Faculty of Engineering and Information Technology, Breuer Marcel Doctoral School, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: localization, traditionalization, green building technology The North Printing House pursues a pattern that combines localization, traditionalization and modern technology. We hope to explore a new kind of “regional ecological house”. The courtyard is a unique residential form of Chinese traditional architecture. Starting from the layout of the courtyard, we try to innovate the advantages of the traditional architectural forms and incorporate modern techniques and living patterns into the new architectural form in order to create a new Chinese living mode and experience mode.

Traditional Fengshui layout and modern ecological integration According to the principle of Fengshui layout, the North Printing Houses interpenetrate each other and form an efficient ecological organism. Based on the principle of Fengshui, it makes a reasonable adjustment to the micro-climate of residences, and makes a reasonable planning for the building part and the outdoor part in order to create a living environment that meets the living habits of Chinese people.

Traditional architectural functions and innovative ecological nodes The building forms a single sloping roof to maximize the area needed for solar panels. The architectural form is simple “L”, which can reduce the thermal consumption by reducing the physical coefficient of the building. The equipment space is set on the west side of the first floor where the occupant is not usually active. Shade blinds and sun shades are respectively installed to achieve the purpose of sun protection and radiation protection in the places where occupants often move or rest, such as porches, corridors, outdoor tea rooms, etc.


Paper 4

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 4, 2019.

Renaissance of the ruins – Give modern functionality to architectural relics K. XUE1 , G. MEDVEGY2 , Z. YUFANG3 1

Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary 3 School of Architecture, China Central Academy of Fine Arts, China

Keywords: relics, respect, renovation, future In the 2018 Venice International Architecture Biennale, the Chinese Pavilion with the theme of “Building a future countryside” introduced to the world that the Chinese countryside is an open field with various possibilities and opportunities. In the corner of the exhibition there is a story about the revival of the village of Louna. Louna, an ancient Buyi minority village of 16 villages, has long sunk on the edge of China’s urbanization. Among them is a deserted village called “Stonemason Village”. Most of the houses in the village are isolated on the narrow mountain path at the upper edge of the karst giant sinkhole, and a few scattered houses are at the bottom of the sinkhole. The remaining thick stone walls prove that the village was once rich, and the cultural decoration of the ancestral hall in the interior reflects the prosperity of the village in the past. Stonemason Village is a natural and cultural overlap of relics and unique cultural landscape heritage. On the premise of respecting nature and history, the team designed the deserted village into a livable tourist area. The humanism of Regionalism and Localism, combined with the functional pattern of modernism, is an utopia built for the future countryside. Karl Mannheim said: “Today’s Utopia is likely to be tomorrow’s reality. All sorts of Utopian thoughts are merely the truth of premature delivery.”


Paper 5

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 5, 2019.

The spatio-temporality of a public space by observing the behaviours of its users, case of Sidi Bou Said O. BEN DHAOU Faculty of Engineering and Information Technologies, University of Pécs, Hungary

Keywords: public space, spatio-temporality, spatiality, temporality, observation, social behaviours The functional use of a space is never a mere material use, but a situation that creates an imaginary relationship with that space and gives it meaning. In fact, when people talk about space, they talk about themselves, they translate their experiences in space and then engage in a process of meaning. It is assumed in this paper that the forms and components of Sidi Bou Said can give meaning to space and otherwise influence its practices. Presented under this image of a public space, social practices fit into it. Sidi Bou Said is therefore “the immaterial and media space” the space of communication understood as “public sphere”. A place where one seeks to communicate, to identify with a community. The combination of the observed spatio-temporal elements consists in talking about the user/space relationship with all that it entails of otherness, temporality, spatial devices and culture.


Paper 6

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 6, 2019.

Categories and characteristics of vernacular architecture in Chongqing Y. SHI1,2 , A.M. TAMÁS1 , G. SZTRANYÁK1 1 2

Faculty of Engineering and Information Technology, University of Pécs, Hungary Faculty of Fine Arts, Chongqing Normal University, China

Keywords: vernacular architecture, Chuandou wooden frame, construction technology The category and characteristics of rural architecture are the basis and important part for the research and innovation of vernacular architecture. This study combines field research with literature research, using typology as a research perspective, and taking rural architecture in Chongqing as the research object, and deeply analyzing the types and characteristics of vernacular architecture. This paper analyzes the types of local architecture in Chongqing from the aspects of plane compound mode, structure and main building materials, and presents the construction technology, process and tools of vernacular architecture with concise and clear illustrations. This paper focuses on the Chuandou wooden frame and analysis its structural mode, spatial form, architectural decoration and its relationship with cultural customs. Based on the analysis of its advantages and disadvantages, The characteristics and value of vernacular architecture have been summarized. It will be applied into the development and creation of future rural architecture. And through this way to continue the vernacular architecture style and local culture.


Paper 7

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 7, 2019.

‘Car race’ with buildings... ‘cube house’ refurbishment in Hungary - A new design approach in the framework of Solar Decathlon 19 competition M. ALI, I. KISTELEGDI Faculty of Engineering and Information Technology, János Szentágothai Research Centre, University of Pécs, Hungary

Keywords: energy design, Solar Decathlon Europe, sustainability, comfort Buildings are responsible for around 40% of greenhouse emissions globally. The residential building sector is responsible for 24% of energy use. In Hungary, about 800.000 of ‘cube Houses’ which date back to the socialist era are still standing. These houses are considered to be “outdated” and they bring not only energy but also social issues. Through the framework of Solar Decathlon Europe 2019 Competition, - in collaboration with the University of Miskolc and University of Blida - the University of Pécs team aimed to create a new design approach for the Cube House to meet the challenges of the 21st century and to combine vernacular architecture with modern solutions with a sustainable development and environment-conscious attitude. This work attempts to fulfill the highest sustainability requirements regarding thermal comfort and energy efficiency, including passive cooling by experimenting an aerodynamic design approach. The integrated “Venturi tower” stimulates natural ventilation and night cooling. The work was achieved by using numerical thermal and fluid flow simulations using IDA ICE and ANSYS Fluent software. The main objective is to investigate the comfort and energy improvement between the refurbished and former state of the houses. A further goal was to achieve the best possible comfort and energy and environmental performance among the competitor buildings in the race. After only two weeks of construction, the implemented building gained multiple awards. It provides lower energy demand and considerably higher comfort in comparison with the unrefurbished ‘cube house’. In addition, it ensures the possibility for measurements for model calibration purposes. The building is not only a case study, but rather a sustainable model for all of the ‘cube houses’ renewal and further family housing renovations or constructions to reach higher standard.


Paper 8

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 8, 2019.

The potential inherent in BIM-based urban models O. RÁK1 , N. BAKAI1 , Á. BORSOS2 , P. IVÁNYI2 1

Marcel Breuer Doctoral School, Department of Engineering Studies, Institute of Smart Technology and Engineering, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: prefabricated concrete buildings, city model, smart city, Building Information Modeling, Geographic Information System A research was made about the prefabricated concrete buildings’ refurbishment program which study was focused on an issue detection with BIM model support. This research had useful results for the optimization of the surveying processes. The best solutions were determined for each part of the building, so that the results can support a comprehensive modernization program. To continue the work an urban perspective was examined in the case of prefab buildings. The garden city of Pécs was modeled in Autodesk Revit and a 3D modelbased information database was developed which contains related parameters of the buildings. However, during the modeling process, the geographic information system (GIS) was found as a tool for information management purposes. This study is mainly focusing on the building information model (BIM) on the urban level but in comparison to the GIS possibilities. The advantages and disadvantages are represented in the study which are the starting point of this part of the research. These tools help to classify the information and connect to 3D spatial elements.


Paper 9

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 9, 2019.

The urban memory and the identity of place: the requalification of the ex-European city Biskra, Algeria H. BARBARA1 , T. MOLNÁR2 1

Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: urban heritage, city identity, urban quality, social integration “A city is more than a place in space, it is a drama in time” (Patrick Geddes). The scenes, the events and the memories, that are perceived in a particular place, and framed by different periods of time; synchronize to construe the meanings and the values of each line in the city. The urban heritage is the essential dimension for the recognition of the tangible and intangible features of the space. It considers the importance of human interactions with the surrounding environment based on memories and perspectives of the built heritage, which determines as a result the architectural and urban experiences, and the shaping of people’s identities in their cities. The urban story of the colonial check board or the so called Ex European city in Biskra, reflects the obvious traces of the French influence in Algeria. Presented with an orthogonal grid planning the historical center comes to introduce an occidental design vision different from the traditional compositions known in the pre-colonial city. With its unique disposition it has an inevitable impact on the rest of the city network, and therefore contributes to the definition of the Urban images of Biskra. The French center despite its importance in the city, suffers today from modern neglects compared to the interest given for the urban extensions and new settlements. The observation on the condition of the buildings shows the deteriorated state of the majority of the structure, caused by various alterations that has been diagnosed along the study. Our investigation aims to define the tools and strategies for the revalorisation of the French built heritage, the qualitative aspect of the research guides to the understanding of the significance and qualities that emphasizes the potentials of this site and asserts the future of its constructions. The connection of society with their city and heritage, is a fundamental solution for the integration of the French legacy with future conservation projects.


Paper 10

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 10, 2019.

Optimal office building design method elaboration using the Energy Design Synthesis method D. ZETZ1 , I. KISTELEGDI2 , ZS. ERCSEY3 1

Breuer Marcel Doctoral School of Architecture, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, János Szentágothai Research Centre, University of Pécs, Hungary 3 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: office building optimisation, space organisation, geometry generation, synthesys, mathematical algorithms, dynamic thermal simulations Regarding the international research activities, there is a lack to observe on architectural, space organisation based on office building optimisation with focus on indoor comfort and energy performance improvement. The Energy Design Synthesis method intends to handle this problem by generating the “n” best model solution of all feasible and possible optimal building combinations. The task is to design of an office building with typical European dimensions of approx. 8 000 - 10 000 m2 net floor space, comprising 4 to 10 storeys. To implement this goal first a series of rules were developed to create all architecturally potential building geometries, using a flexible, modular raster system of space cell units and combined basic unit groups. In this way the creation of a complete level is possible. A fundamental strategy divides the interior in a closed office space section and an open atrium partition for multiple corridor and working functions. With mathematical rigor, a back-tracking algorithm generates all office building geometries satisfying the rules. The office building geometry cases will be then modelled in a dynamic thermal simulation framework to generate a ranking of thermal comfort, daylighting comfort, indoor air quality and energy demand performance. This geometry ranking serves as a basis for further research steps, such as building completion using diverse passive strategies and simulation process to gain feedback and order of the building’s comfort and energy performance.


Paper 11

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 11, 2019.

Design for communities and acceptance E.ZS. PANCSA1 , F. KISS2 1

Breuer Marcel Doctoral School of Architecture, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Budapest Metropolitan University, Hungary

Keywords: ecosystem design, education, responsibility, environment, startup, future cities Designers and architects today need to become a kind of ecosystem designer. In the accelerating “use and utilization” of our Earth as our civilization advances, which we cannot curb, I have a design responsibility to participate in change. Our design work and forming our environment are also ecologically and economically important. We need to deal with the flows that surround us, not just at the level of services or energy sources. I was questioning myself during my whole professional practice so far about the competence boundaries between architecture and design and other fields in general. Finally, the enlightening point was the Beyond the Lab exhibition which was held in The Netherlands 2019. The DIY Science Revolution, which transcended not only the boundaries of the set of competencies but also our relationship with our environment and the boundaries of intimate or community space. Science is done by scientists. Isn’t it? The exhibition Beyond the Lab explores seven remarkable stories of people who are opening up research to everyone. The exhibition is an initiative of Sparks to show that people can participate in science and share responsibility for scientific research and innovation. Community involvement of the urban population is not necessarily manifested in its contribution to the common good by volunteering. We can also be active in the conscious use of our living environment. I would like to create a basis for supportive decisions in our study of habitats and our environmental culture, which, through our relationship with ourselves, decodes our habits and their effects. I want to help to identify these relationships with design. This can be a tool to serve and has the effect that encourages change. To form the environment in many ways a part of a circular social and economic system with all its effects. We can understand better our relationships with ourselves, others and with the environment as well and become a part of a community who take responsibility for themselves. A city can achieve its true potential if its people are healthy and productive members of the community. Therefore, in my research, I would like to explore the ways in which we can, later on, motivate not only designers to think in a different and more complex way about the connections’ points that surround us.


Paper 12

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 12, 2019.

Design and research on regeneration of historic block buildings based on the concept of symbiosis H.W. PAN Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: village in the city, reconstruction, philosophy of symbiotic, old district In the high-speed renewal environment of modern and contemporary Chinese cities, the historical neighborhoods are always a topic that cannot be circumvented, whether it is beautiful or quiet or old. Because, in contemporary China, the consumption and demand of people’s lives have undergone fundamental changes. The old neighborhoods and buildings that existed in the city can no longer carry such a fast-paced lifestyle, and they are on the verge of being eliminated. This kind of neighborhood has a unique name in China - “village in the city”. China is entering the second half of urban renewal and infrastructure construction. The speed of urban expansion is slowing down, and the frequency of new buildings is decreasing. Instead, more and more old buildings are facing renewal and repair work, which also makes researchers have time to think about urban development. A lot of research and exploration was carried out on the old streets and buildings in the city. They kept the blocks and buildings intact, just like the samples soaked in the potion, it was protected but lost the original vitality. Not only has the context of urban history been separated, but it has also accelerated the demise of the region. Replacing this design is the idea of implanting a “symbiosis” in the design. The paper will start with the formation and development of the block city, analyze the current situation of the historical building renovation of the city block and related theories, so as to propose corresponding strategies and viewpoints on the design method of the block renovation and renewal, that is, the symbiotic idea can make the old block. A harmonious relationship between the “organic symbiosis” and the high-speed development of the city is formed. Finally, the case of design practice transformation is elaborated.


Paper 13

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 13, 2019.

Enlightenment from street art activities in urban public space H.H. HE, J. GYERGYÁK Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: street art activities, urban public space, space energy Nowadays, art involvement in urban public space is a new cultural form of the city. Art intervention is also an important measure for the renewal and construction of public space. Street art activities are a unique, flexible art intervention in urban public spaces. It plays an important role in enhancing the vitality of public spaces, increasing human interaction and building social life. We analyze street art activities in urban public spaces. The paper discusses the enlightenment brought by street art activities from three aspects, activity management system, activity space and surrounding relationship, activities promote spatial renewal and functional replacement. It is pointed out that the involvement of street art in urban public space is not only a micro-renewal strategy and approach, but also an effective strategy for economic promotion around the public space, the development of art culture and the replacement of spatial functions.


Paper 14

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 14, 2019.

Exploring the relationship between child obesity and green space in England Q.C. HE, P. BRINDLEY University of Sheffield, UK

Keywords: child obesity, green space, food outlets, deprivation, England Background: In the UK, nearly 80% children aged between 10-14 will become obese adults in the future without effective measures. A growing number of people assert that green space might be one of the potential factors related to child obesity. However, the evidence is indecisive and many researches have observed no relationship or mixed results between obesity and green space provision. Methods: This ecological study was undertaken utilising different types of green space from OS green space data for 2017 and the distance between each residential postcode and the nearest green space was measured. The child obesity data, obtained from NCMP, was available for Reception (4-5 age) and Year 6 (10-11 age) as well as two different time periods (20082011 and 2013-2016). The confounders of food outlets and socioeconomic status (IMD) were also included in the models. Results: The variables of IMD, food outlets, the nearest green space all showed a positive and statistically significant relationship with obesity in children aged 4-5 and 10-11 in 20082011 and 2013-2016 (sig.<0.05). Each model explained (R-square) more than 90% variability of obesity. Furthermore, religious green space and playfields appear to have the greatest effect on child obesity. Residuals were scatted across England with the positive residuals located in surrounding areas of London, Newcastle, Manchester and Birmingham. Conclusions: Children living close to the green space are less likely to be obese. Religious green space and playfields appear to have the most effect on child obesity, but this finding raises many questions and needs further investigation. Furthermore, it is crucial to test models and variables along with ensuring interpretation. Although causality needs to be confirmed, these results suggest that policymakers and the planners may need to seriously consider the potential positive impact of the green space on child obesity when formulating policies.


Paper 15

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 15, 2019.

Metamorphosis of water in architectural thinking G. HECKENAST1 , M. FERENCZ2 , A. KERTÉSZ1 1

Breuer Marcel Doctoral School of Architecture, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Ybl Miklós Faculty of Architecture and Civil Engineering, Szent István University, Hungary

Keywords: water, design method, urban planning, patterns, history of architecture The focus of this research is the connection between architecture and water, how this unique natural element has formed our way of thinking about how we have lived in settlements worldwide throughout the ages. Observing the development of building science can lead us to the understanding of architecture’s nature. At its essence, architectural thinking branches out, creating a spatial network of ideas, and it becomes more interesting when certain specific features are selected. To give a complex answer, it is required to observe this topic from different aspects, such as: time, space, meaning, technology, art and architectural design method. Observing each aspect in detail reveals the connection between them and makes spatial network more layered and enriched. Then combining the defining aspects together will provide an overview of how the architectural evolution has developed throughout human history. The system will slowly rearrange and it will highlight a special pattern in the history of the world’s architecture, beyond any physical and non-physical borders, in the world of ideas. Through this theoretical journey, it leads us to an architectural design pattern, which is still in motion. This outlined theoretical path may help us find a better solution for the built environment’s upcoming challenges in connection with water, and a deeper understanding of the fundamental relationship between water and architecture in the future.


Paper 16

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 16, 2019.

Family house design optimisation by application of the energy design synthesis method K.R. HORVÁTH1 , I. KISTELEGDI2 , ZS. ERCSEY3 , Z. KOVÁCS 1

Breuer Marcel Doctoral School of Architecture, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, János Szentágothai Research Centre, University of Pécs, Hungary 3 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: energy design, thermal simulation, daylight, thermal comfort, energy demand The Energia Design method applies high-tech engineering simulations to establish a sustainable architectural built environment. This method includes some heuristic building simulations to quantify the developed planning concepts, therefore it considers not all possible solutions, hence the guaranteed optimal concept may be lost. The current research extends the Energy Design method, by developing a synthesis step to ensure actual optimal buildings with highest energy efficiency and best comfort. Energy Design Synthesis employs mathematical modelling techniques and combinatorial optimization, leaning on the P-graph methodology. As a first step the system of architectural, climate and energy design rules are defined. The modular geometry system comprises construction elements, structure, window-floor ratio and orientation variables. All corresponding and potential building concept combinations are produced according to the rules, while unfeasible and/or energetically irrelevant cases are rejected. All cases are modelled and examined in complex building physics simulations. This method determines the optimal solution according to predefined user preferences, including energy performance, thermal and visual comfort, air hygiene etc.. In addition, it also classifies the various n-best solutions in order. The method is presented by a specific building problem.


Paper 17

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 17, 2019.

Research on the reuse of interior space in historic buildings - Pinghe Packing Factory exhibition area design in Wuhan Design Day and the 5th Design Biennale in 2019 ZK. HUANG1 , G. ZOBOKI1 , W. XIONG2 1 2

Faculty of Engineering and Information Technology, University of Pécs, Hungary School of Arts & Design, Hubei University of Technology, China

Keywords: concession buildings, survival, update, Wuhan Biennale After the Opium War(1840-1842), many concession and concession buildings appeared in Hankou District of Wuhan City. Over the course of nearly 180 years since their construction, most of the buildings have been preserved and maintained. This unique architectural form has become a symbol of Wuhan. However, with the advancement of science and technology and social civilization, the contradiction between the decline of historical buildings and the development of modern cities has become increasingly prominent. The aging of the old structure of the building, especially the single function, can no longer be satisfied with the needs of modern people. This paper studies the renewal and reuse of the interior space of historic buildings through the Wuhan Pinghe Packing Plant exhibition area design project (Wuhan Design Day and the 5th Design Biennale in 2019). Through the art design means to rationally update the indoor functions, it will be transformed into the contradictions and contradictions in the development of the times, so that the precious historical buildings can be developed and their core values can be continued.

Figure 17.1: Pinghe Packing Factory facade


Paper 18

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 18, 2019.

Protection and renewal of Chinese ancient villages based on sustainable background H. CAO, A.M. TAMÁS, G. SZTRANYÁK Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: sustainable development, ancient village, protection, renewal, dimension The ancient village with thousand-year history, has been the living fossil of the history of the Chinese nation’s farming culture. It is a collection of traditional folk culture and the root of modern culture and deeply condenses the people’s life, emotions and mundane ideals. Thus, its protection and development are related to the inheritance of Chinese traditional culture. However, the current situation in China is worrisome. Therefore, following the law of the development of ancient villages, and taking into account the integration of traditional culture and modern culture, how to promote the sustainable development of ancient villages and its renewal has become the focus of the current work. This research starts from the protection and development of ancient villages under the background of sustainable development. It focuses on the existing traditional ancient villages in northern China, and it aims to explore the multi-functions and values of ancient villages. With field research, comparative analysis, and experience summarization, this paper analyzes the value and significance of ancient Chinese village protection, based on the real design projects in China, and explore their current situation and problems. Furthermore, the scientific, multidimensional and living transmission development patterns will be applied to the protection practice of ancient Chinese villages, when discussing the protection and renewal strategies of the ancient Chinese villages in the future. Ultimately we achieve a sustainable development path that is developed in protection and protected in development.

Figure 18.1: Protection and renewal of the ancient Chinese villages


Paper 19

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 19, 2019.

An overview of developing energy prototype in bottom-up construction shelters R. IBRAHIM1 , B. BARANYAI2 , T.J. KATONA1 1

Faculty of Engineering and Information Technology, University of Pécs, Hungary Department of Building Structures and Energy Design, Institute of Architecture, Faculty of Engineering and Information Technology, János Szentágothai Research Center, University of Pécs, Hungary 2

Keywords: climate change, post-disaster shelters, energy consumption, affordable strategies, low impact construction, life-span-community involvement Nowadays natural and man-made disasters forced no less than the population of UK to leave their habitual places. The majority of these migrants live in inefficient and uncomfortable transitional shelters in particularly regarding to energy. Current studies show that there are lack of attempts to reduce energy consumption rather than achieving level of comfort and mitigate an environmental impacts altogether of that shelters so, the question is that how all these can be accomplished in one single prototype. The aim of this study is to give an overview of the investigation on achieving affordable optimum energetic model with more progressive longer life-span displaced shelter and eventually low impact on the environment. Different methodologies have been adapted to answer the research question and achieve its aim eventually such as collecting data via direct connection with the Board of Relief and Humanitarian Affairs (B.R.H.A) in Kurdistan-Iraq and a deep investigation has been performed through contemporary and past literature review regarding to typologies of shelters, its performance and environmental impact. The main outcomes results of the study have found that firstly new techniques have to be incorporated to the process of construction in migrant’s camps such as low impact construction materials and techniques similarly bottom-up construction solution with involving displaced people in the construction process has a significant effect to achieve the main aims of the research. Furthermore planning pattern of the camps and dwellings is another vital factor. It is recommended that with involvement of simulation software (IDA-ICE) the research can validate the process of assessing and to create new prototypes. Furthermore the research concludes that the beneficiaries of this study could not merely be refugees but it can be extended to urban poor units, week-end and tourist shelters as well.


Paper 20

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 20, 2019.

The rehabilitation of the historic commercial center of the old city of Aleppo after war - the methodology of the Aga Khan Trust for culture S. IBRAHIM1 , T. MOLNÁR2 1

Faculty of Engineering and Information Technology, Breuer Marcel Doctoral School, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: Syria, documentation, drone, Aleppo Any conservation action starts with a decision. Conservation principles adopted since the early twentieth century acknowledge the need for decisions to be informed by the best available scientific evidence. Accordingly substantial efforts have been expended in building up a significant body of knowledge to support conservation decisions. This paper discusses the process of creating tools for decision-makers to accomplish effective conservation decision, with reference to a case study of post war rehabilitation in Aleppo city in Syria done by the Aga Khan Foundation and supervised by DGAM. The ancient city of Aleppo is one of the oldest continuously inhabited cities in the world. It may have been inhabited in the sixth millennium BC. Aleppo is located at the crossroads of several trade routes that have been active since the second millennium BC. It is a World Heritage City and listed based on its outstanding universal values. Aleppo was severely damaged because of the war. 5802 land points of the city were damaged until 2017 and more than sixty percent of the city is damaged. The paper explores the adequate frameworks and tools that is needed to tackle the new and emerging challenges in conservation, especially in the complicated situation after war in Syria. Qualitative and quantitative tools and models from different fields are being increasingly explored to facilitate, record, and enhance the transparency of conservation decisions. The resulted tools are simple, clear, flexible and practical as possible to maximize their application. Moreover, the paper evaluated them for their relevance to cultural heritage and adaption as appropriate.


Paper 21

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 21, 2019.

Identification and restoration of the traditional watermills in the Lipjan region B. JAGXHIU, H. ÇADRAKU Faculty of Civil Engineering and Infrastructure, UBT College, Prishtina, Kosovo

Keywords: identification and restoration, watermills, Lipjan region, heritage Watermills in Kosovo have been for centuries a characteristic element of river valley landscape and have played a very important social and economic role in the country. They represent a very characteristic feature in the country’s architectural and cultural identity. Although nowadays there are still some preserved and functioning watermills, most of them are abandoned, destroyed, and many with very few traces remaining. This research aims to identify and describe the current state of the watermills in the Lipjan region, as well as to mark them on a GIS map. Afterward, this study examines the possibility of restoring these mills to their original function or adapting them to a new function, so that these traditional mills remain as a heritage for future generations. The study sampled one of the identified mills, analyzed its characteristics, as well as the possibility of restoration and preservation for tourism and cultural heritage purposes. This heritage, if rediscovered, restored and protected, can play an essential role in the socio-economic regeneration of the area.


Paper 22

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 22, 2019.

Renovation versus new construction - Innovative solutions in sustainable architecture: Solar Decathlon 2019 J.G. SZIGONY, B. KÓSA, T. KONDOR Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: Solar Decathlon Europe, sustainable, architecture, innovative solution, renovation, Kádár-cube Nowadays, number of regulatory proposals are being made for environmentally conscious construction. The re-cultivation of our existing building stock would be as essential task for the architects of the present day as the development and use of the natural building materials. The HUNGARIAN NEST+ project which was created at the Solar Decathlon innovative architectural competition, combines the principles of the sustainable architectural design and its practical features. To develop the prototype of the house, an interdisciplinary group constantly worked on the sustainable innovative methods, where the use of environmentally conscious materials and the adaptability got particular focus, both in design and construction too. The competition building is a family-house prototype that, thanks to its innovative solutions, gives an opportunity to rethink the “Kádár-cube” buildings which were spread in the second half of the 20th century in Hungary.


Paper 23

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 23, 2019.

Recycled national identity H. JUHÁSZ, T. KONDOR, B. KÓSA Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: Solar Decathlon Europe, Africa, recycle, culture, national identity Nowadays, the appearance of the mixed cultural features has an important effect in every aspect of our life, as well as in the architecture. These characteristics are not only accentual in the appearance, but also distinguishable in the construction methods. In 2019, during the analyses of the Solar Decathlon international innovative house-building competition’s sessions in Europe and Africa, we focused on the question of the national identity. The architectural solutions in the built-up houses used the possibilities of the passive energy systems in different ways, but comparable in their principles, going back to the local traditional architectural methods. This research by following the principles of sustainability and recycling, deal with the local architectural elements which were used in the HUNGARIAN NEST+ project and also shown a relevant example in the Solar Decathlon Africa 2019 competition-buildings.


Paper 24

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 24, 2019.

Diving center in Gyékényes, Hungary S. JURDIK1 , K. KOVÁCS-ANDOR2 1

Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: diving, educational environment, water, lake In my presentation, I would like to introduce my thesis for the master’s degree, where I designed a diving center for the Kotró Lake in Gyékényes. The planned building would also be suitable for education and for diving as a hobby. The current state of education at the building level is not solved or, if it is possible, it is inadequate. At present, there are travel distances of up to several hours between open water and pool practice. My building would solve this distance and give the opportunity to do both types of exercise in one place. I think it’s important to point out that diving is not just a luxury sport. It can became an important profession. Think of just underwater construction, the indispensable work of a disaster diver. For the opportunity to get started, I created an alternative with this building and it’s connection to water.


Paper 25

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 25, 2019.

Aerodynamic shaping of a passively ventilated industry facility A. KATONA1 , I. KISTELEGDI2 1

Faculty of Engineering and Information Technology, University of Pécs, Hungary Faculty of Engineering and Information Technology, János Szentágothai Research Centre, University of Pécs, Hungary 2

Keywords: aerodynamics, architecture, CFD, natural ventilation, industrial hall Cooling and mechanical ventilation accounts for more than half of the energy consumption in commercial and industrial buildings worldwide. Cooling and ventilation of buildings with typically large and complex spaces cause not only energy issues but also technical problems of comfort. In the field of realized building examples we can only talk about a few exceptional, groundbreaking buildings with passive ventilation, because little experience has not yet allow for a breakthrough in industrial scale. In the publications of completed projects we typically encounter the architectural presentation of buildings, without available scientific figures and scientifically quantified information. Regarding the scientific literature about passive ventilation systems in buildings, numerous studies deal with different components and configurations, while insights about the complete system remain incomplete due to a limited number of investigations and the lack of implemented, scale 1:1 building development. Inspired by the passive ventilation innovation in the industry complex of RATI Ltd. in Komló, Hungary, this research aims to develop the passive ventilation and cooling system of a further industry hall project in Székesfehérvár, Hungary. After construction, important feedback can be gained about planning and operation accuracy and techniques. CFD simulations (ANSYS Workbench) were applied to assess the aerodynamic performance of the concepts. In a multi stage investigation, a series of draft increasing ‘Venturi’ structure shapes were tested to find the optimal version for the integration at the top of exhaust ventilation roof structures. Thereafter, diverse exhaust chimney roof structure and tower variants were analysed as passive air conducting systems (PACS). An optimum-compromise in term of ventilation effectivity as well as structural reasonability was sought. As a result, geometry, size, number and positioning of exhaust ventilation towers as well as shapes of ‘Venturi’ draft accelerator structures, inlet façade openings and indoor gallery space arrangement could be defined as an optimal PACS system combination. Future CFD modelling steps will elaborate the appropriate operation of the chosen PACS.


Paper 26

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 26, 2019.

Development of an area where nature and tourism meets: Tisza backwater visitor centre L.A. GYÜRE1 , K. KOVÁCS-ANDOR2 1

Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: visitor centre, ecosystem, tourism, river, development, nature, cooperation In the southern region of the country lies Mártély, next to a backwater of river Tisza. The holiday resorts lie in the heart of the landscape conservation area. Its unique ecosystem attracts many from the surrounding settlements for recreational purposes - fishing, relaxing, camping, etc. However, the conditions of the area started to decay over time due to human negligence. In my thesis for the master’s degree, I tried to find answers for these problems. After analyzing the situation, the areas in need for improvement were chosen to be parts of an extensive development focusing on the strengths and connections of these zones. Establishing a new visitor centre as a gate to the backwater area is part of the overall development, its relevance is shown in its cooperation and connection with the existing environment.


Paper 27

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 27, 2019.

Inspiration of the potential of atypical residential area A practice design study at Roissypole C. LU1 , T. ZHAO1 , H. HE1 , Á. BORSOS2 , J. GYERGYÁK2 1

Breuer Marcel Doctoral School of Architecture, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: airport, Paris, vision, life, reinvent, communication, social A new era in the development of airport regions has started in France, especially in the construction of urban areas such as the Roissypole that is an area within Charles de Gaulle airport in Paris. It is a group of buildings made up of offices, airport hotels, the RER train station (Aeroport CDG1), the bus and coach station. The main function of this area is to provide long-term or short-term accommodation for airport staff, transit, travellers and other people. There are already accommodations of different levels with bars, cafe and more, and somehow people intend to stay within the hotels and maisons. Our concept is by creating to reinvent the airport region design transform the Roissypole district into an appealing, enjoyable and lively living environment. Roissypole district design is not a simple public facility renew instead of a new social and functional design. It is a market, connection bridge and work out place horizontally, and landscape, retail and leisure-health vertically. So that can really make that place much more in a way fresh and fluid. Further on, there come 2 major problems for us to solve: communication efficiency and loneliness. Loneliness has become a globalizing problem since we are sticked on the internet, people feel interest online, but physically unconnected. We would like to develop the residential potential of the public area with a new pattern. While enhancing the life quality for both long and short-term residents, for people to share their live, live in an active way, it also provides passive life and initiative social activities which form a new life style.


Paper 28

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 28, 2019.

Safe zones as a precautionary architectural and urban solution for potential civilian displacement disasters S.M. MAITEH1 , E.SZ. ZOLTÁN2 1

Breuer Marcel Doctoral School of Architecture, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: safe zones, autonomous zones, disaster settlements, displaced people, refugee The world is currently suffering from a significant global refugee crisis, which is the biggest since the Second World War, with more than 70 million displaced people. The international efforts to resolve the refugee crisis are becoming elusive because of limited resources and time needed to develop convenient shelters. Therefore, more than 95% of displaced people need secure accommodation in all disaster situations. The problem escalates because the majority of disaster management active actions arise after a disaster takes place due to the unexpected crises. Nowadays technology can predict the next refugee crisis which raises many questions regarding crisis management and post-disaster architectural solutions, so what can we do differently and how can we do it. The paper introduces safe zones as an idealistic and realistic solution for the case of predisaster architectural and urban solution defining safe zones as autonomous areas that provide alternative precautionary disaster management plan where it accommodates civilians in a pre-built settlement during crisis periods. In addition design criteria, growth strategies and construction stages are established through studying the development of towns and cities, the characteristics of ancient impenetrable city layouts, and tracking city growth and expansion. Safe zones would be the solution for current and future refugee crisis and the safest choice for future displaced civilians.


Paper 29

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 29, 2019.

People with dementia as active participants in researches related to built environment F. MARX, D. RÉTFALVI Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: people with dementia, built environment, Alzheimer, literature review People with dementia are subject of many researches, but there is a consensus that they should not be involved as active participants mainly because people with dementia have cognitive impairments. This paper reviews the available literature on people with dementia as an active informant in researches regarding the built environment. As a requirement for the literature review, it was only included papers with full-text available, published in English during the period of 2004 until 2019. The keywords used for the research were respectively “built environment” and “dementia”. The included papers were found at PubMed and Springer database platforms. After screening, papers were removed because it was not possible to access the full-text or it did not included people with dementia as participants. A total of 10 studies were eligible and identified as relevant. Four other studies were found from the references and added to the list. In total 14 papers were included in this literature review. The results reinforce the fact that people with dementia have the ability to collaborate as informants in researchers. Data collection methods should be adapted for their inclusion in the research as well as a more careful approach and a special attention regarding the consent of their participation.


Paper 30

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 30, 2019.

Simulation-supported design of high-rise office building envelope in moderate climate B. NAILI1 , I. KISTELEGDI2 , I. HÁBER1 1

Faculty of Engineering and Information Technology, University of Pecs Faculty of Engineering and Information Technology, János Szentágothai Research Centre, University of Pécs, Hungary 2

Keywords: office high-rise buildings, multi-objective optimization, energy efficiency The reduction of the energy consumption is a major issue nowadays that should be considered during the design process. High-rise buildings represent a building type with significantly high energy demand, since most of these buildings are operated with mechanical ventilation all over the year due to high wind loads on the building envelope structures. In addition, highrise buildings serve typically as office use with characteristic fully glazed facades, generating considerable cooling energy demand. Furthermore, cooling is the most primary energy intensive indoor conditioning technology. Consequently, current high-rise buildings are not energy efficient, moreover comfort and health issues occur (Sick Building Syndrome) and therefore cannot provide a sustainable solution. Most investigations deal with energy-saving solutions in high-rise office buildings by optimizing one subsystem of the building, e.g. envelope, shading devices and glazing configurations optimization or sensitivity analyses about the subsystems. However, only a limited number of work focuses on conceptual design or on the application of dynamic simulation tools and/or multi-objective optimization algorithms. Therefore, this particular research project concentrates on the space organization based high-rise office building development, by considering multi objective optimization in comfort, energy and environmental performance. As a kick-off step of the investigation, a case study task was set to optimize the envelope and the shading systems of a design competition entry. This design optimization task represents generic dimensions, appropriately suitable for typical high-rise office building optimization in moderate climate (e.g. Europe). The OTP bank tower project in Budapest possessed a large fully glazed facade that had to be optimized to avoid summer overheating and glare effect. Multiple facade variants were tested by assessing the thermal and visual comfort, as well as the cooling energy demand. The IDA ICE complex dynamic building energy simulation program was used for thermal and lighting modelling and building physics calculations. Results revealed the best performing, optimized facade configuration in terms of comfort and energy efficiency. Inductive conclusions for similarly oriented fully glazed office tower envelope structures can be gained for further projects.


Paper 31

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 31, 2019.

University of Pécs Western campus – Medical School development P. PAÁRI1 , J. GYERGYÁK2 , P. SEBESTYÉN3 1

Breuer Marcel Doctoral School, University of Pécs, Hungary Faculty of Engineering and Information Technology, University of Pécs, Hungary 3 Másfél Architecture Studio, Hungary 2

Keywords: university, development, Pécs, Medical School, campus design The possibility of development of the Campus of the Medical School is part of the Modern Cities Program. After the hypotenuse research phase the development plan determines other three phases. In the first phase (until 2020) the targets are the placement of the new theoretical block and the organisation of the parking situation and the renewal of the outer places at the southern part of the campus. The new and the older theoretical blocks are in relationship, the new block will be next to the older north. The social places of the two blocks will be connected to create a “world class” education building composition. The re-interpretation of the outer places contributes to the utility of the campus. The key question of the first phase is the formation of the campus vibes and the organisation of the parking situation. In the next phase the public places formation will be continued at the eastern part focusing to the pedestrinal axes. The organisation of the parking situation which started in the first phase, will be continued in the second phase with formation of new surfaces. The border of the area will be extended beyond the present southern border. At the Lovarda block, next to the original block, a new building block will be placed and it will have functionalities which can be used mixed by university citizens and other people. In the third phase one of targets is the closer connection of the Lovarda block and the original block. There will be significant changes in the inner part of the campus, in the building stock and the public places and parking systems also. If these developments could be realized there will be a possibility for the northern campus, the Faculty of Engineering and Information Technology could be part of the system. To achieve this target the reprogramming of the area between the two campuses is indispensable.


Paper 32

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 32, 2019.

Adaptive reuse – methods and difficulties in practice T. RÁCZ Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pecs, Hungary

Keywords: adaptive reuse, sustainability, architecture Adaptive reuse has become a key issue in architecture in the last decades. Many theories were published, concerning its importance, and the reason why we should highlight the phenomenon of reusing existing buildings. In this paper, my aim is to show some concepts from my practice and also the “dark side” of the reusing process that can make the work of the architects sometimes even more difficult: dilemmas, hard questions – what is valuable enough to keep, how far we can go in partial-demolishing; requirements of the clients, financial issues, surprises during the building process.


Paper 33

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 33, 2019.

Validation of a building environmental analysis tool based on real field measurements in a hot and dry climate region M. RAIS1 , A. BOUMERZOUG2 1

Faculty of Engineering and Information Technology and János Szentágothai Research Center, University of Pécs, Hungary 2 Institute of Architecture, University of Mohammad Khider Biskra, Algeria

Keywords: building energy performance, VI-Suite, validation, energy simulation Currently, in the building energy efficiency design field, predictive numerical models have been widely used. It is considered one of the most important decision tools in the environmental design process. This study is focused on the validation of the free and open-source VI-Suite. It is a plugin that connects blender 3D software to the external applications Energy plus, Radiance and Matplotlib to conduct lighting analysis, energy performance analysis, advanced natural ventilation network creation, glare analysis and wind rose generation. The validation methodology is carried out in a full apartment located in Biskra city-Algeria in a hot and dry climate. First, a data logger Mi-sol, Model: WS-HP3001-8MZ was used by installing five (5) sensors in the apartment in order to obtain the field measurements data of dry bulb temperature and humidity. The measurements have been conducted between the 25th and the 29th of July, 2019. Secondly, a dynamic simulation with VI-Suite add-on Blender 3D was performed for the same apartment using the same meteorological data of the mentioned days. Finally, the comparison between the field measurement results and the dynamic simulation revealed a good agreement, and the overall results show the capabilities of the software as an effective tool for building-performance studies.


Paper 34

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 34, 2019.

Research on the development of public art in Beijing subway public space C. REN, G. MEDVEGY Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: subway public space, development, public art The public space of the subway is a relatively special public space, which is in the underground closed space or an overpass space. Closed spaces tend to give people a sense of repression, while the art intervent space can often play a role in activating space. The particularity of the subway space brings great influence and limit to the creation of public art in the subway. In the implementation of the public art of the subway, London, England and Paris are the regions in the world to promote public art to activate the public space plan for the public. Beijing is the first city in China to build public art in subway public space. The public art policy and practical results of Beijing subway have an important impact on the development of public art of China’s subway. A prominent feature of Beijing subway public space is its openness to the public. Passengers on Beijing subway come from all over the world, and subway public art has become a new business card of Beijing subway. Public art related regulations and policies focus on public art to activate the subway public space; the subway management department also hopes to introduce subway public space through art to improve people’s experience of riding on the subway. The subway public art in Beijing tends to show the rich historical and cultural heritage of Beijing, and at the same time accepts more diverse ideas of theme selection. The construction of public art in Beijing Metro should not only be limited to the beautification of subway space, but also establish a complete set of public art ecological mechanism. At present, the promotion and publicity of public art works in the subway is concerned with soliciting public opinions, guiding people to pay attention to the subway public art, and making full use of the cultural communication effect brought by the subway space. Hope to be beneficial to the development of public art in China’s subway public space.


Paper 35

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 35, 2019.

Parametric design workshops — Teaching geometry, programming and architecture on an experience-based way R. SÁRKÖZI Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: parametric design, education Teaching parametric design is a complex task, because the curriculum has to cover a lot of related fields and some of these are fairly new for architecture students. This task is even more challenging if the target audience consists of high school students or curious people with various backgrounds and the available time is limited. The aim of this presentation is to introduce a method with which raising awareness and interest for this topic is possible, and also transfer basic knowledge about parametric design to a wide variety of people. Parametric design is a complex topic, which includes geometry, programming and architecture. This can cause difficulties during the education but it also means that people with different interests can find something appealing in it. On these events a physical model is always very important, and it is always a goal to provide some kind of experience related to them. For this reason, the models can be taken apart and put together freely. In this presentation some of these models and their specialties will be introduced, what the important features are during their development, and how they are presented for the audience.

Figure 35.1: Detail of a model


Paper 36

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 36, 2019.

Under the perspective of community autonomy: the study mode of the intervention of public art into local renewal S.S. LIU1 , S.Z. ZHANG2 1 2

Breuer Marcel Doctoral School, University of Pécs, Hungary College of Arts, Jiangxi University of Finance and Economics, China

Keywords: community autonomy, public art, intervention, local renewal, research In terms of public art, it is an ascendant field of science, which still has many gaps in both theoretical and practical research. Besides, the definition of public art has been expanded in China. As for the concept of “public”, it is not only limited to physical space, but also covers the life and communication of urban public space at the same time. On the other hand, “art” is not only a embellishment of space beautification, but also a way for urban residents to participate in the construction of public space and shape public life. In this paper, it is based on the current social, economic and cultural background of China (including the transformation of social structure system, the rapid development of market economy system, the imbalance of regional economic development, the acceleration of urbanization process, the prominent problems of community governance caused by floating population living in urban communities and so on), which takes the “Dashila Renewal Plan” of Beijing as the research object to discuss the methods and ways for the intervention of public art to local renewal through investigation and research, so as to provide practical reference for local renewal and development. First of all, it analyzes the essential connotation and characteristics of public art in China by using the method of interdisciplinary research with the logical thinking of “discovering, analyzing and solving problems”, which then establishes the logical relationship between public art and local renewal at the level of local renewal through the guidance of the present situation under the theme of community autonomy. Secondly, it takes the construction of community cohesion as a clue in view of the present situation of the lack of community autonomy participation to probe into the methods and ways for art practice to awaken residents to participate in local renewal in the two aspects of space construction and cultural integration based on the practical case of the intervention of public art in the “Dashila Renewal Plan”. Finally, it analyzes the intervention, practice and realization ways of public art in the level of community governance from two aspects of social capital and local resources in view of the working mode of community autonomy through combing and analyzing of the practice cases of “Dashila Renewal Plan”, which thus puts forward some suggestions. As for the intervention of public art at the level of local renewal, it is to activate the participation of local community residents in community construction and development by revealing the inherent needs of community life and arousing the creativity of the people, so as to establish the confidence, identity and connection of the community with a kind of external embodiment of value creation. As a result, it can form the sense of belonging of floating population in the local community.


Paper 37

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 37, 2019.

Making of fluid public heritage space – Case study: the historical Al-Merjeh square in the city center of Damascus S. IBRAHIM1 , T. MOLNÁR2 1

Faculty of Engineering and Information Technology, Breuer Marcel Doctoral School, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs

Keywords: heritage, fluid, public space, Damascus “When public spaces are successful [. . . ] they will increase opportunities to participate in communal activity.” (Carr, Francis, Rivlin, & Stone, 1993).The city of Damascus craves the fluid inviting public spaces, which provide a flexible place for public amenity, civic and cultural events. The existing public spaces present a hostile environment at the street level: traffic against pedestrians and every important historical public space is currently a car parking or a traffic circle. In Damascus, after seven years of war, there is an emerging need for reconciliation by gathering public spaces that promote peace. The city is suffocating because of its residents as most of the residential suburbs are possibly or severely damaged, and displaced people immigrated to Damascus. People are feeling exiled in their city. The research method is a combination between theoretical research and a case study assessment. The case study is the historical Al- Marjeh Square which was the city center of Damascus outside the old city walls (shihabi, 2008). The square dates back to (1807-1810), and was the site of the government buildings and the official square of the city; many important buildings were around the square like the town hall, the clinic. Besides, the square witnessed the scene of many historical events such as “The Declaration of Independence”. The National Geographic Magazine mentioned it in its edition of December 1938 in America, describing it as ‘The Commercial Heart of Damascus’. The importance of the square is clear through the historic monument (Telegraphic Monument) designed by ‘Rimondo Daronco’ in the center of the square (shihabi, 2008). Currently, the square urban environment is a combination of noise, wind, traffic, lack of sunlight and no social interactive spaces. As a result, we have a public space with an absence of public life. Therefore, the intervention concept tries to achieve a successful balance between creating its own identity, providing flexible resilient space for festivals and providing Heritage public space related to the spatial memory that the public needs. This paper suggests that the activation of public heritage space as a social interaction center can play a great role in the recovery and reconciliation of post-war communities. Besides, it explores a new intervention to create a fluid public heritage place with pedestrian nodes, pedestrian paths and new interactive media technologies that revive the square. The concept of the intervention depends on balancing between the reflections of its own identity, its history and the creation of a peaceful interactive social place that connects people to the history of the square and creates a sense of belonging.


Paper 38

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 38, 2019.

Modernization imposed: SOM’s practice in Asia – Case studies of Jakarta, Kuala Lumpur and Wuhan K. TU1 , A. REITH2 , J. LIU3 1

Faculty of Civil Engineering, Architecture and Environment, Hubei University of Technology, China Advanced Building and Urban Design (ABUD), Hungary 3 College of Urban and Environmental Science, Peking University, China 2

Keywords: overseas design, modernization, grid road system, Asia Located in the easternmost part of the world, Asia, with the largest population and area of the seven continents, once had a splendid and time-honored civilization. But its modern performance lags behind, most countries completed the modernization process less than 100 years. In Asia, “modernization” is also known as “westernization”. We need to learn from the experience of western developed countries in everything from the way of life to urban construction. Therefore, the modernization of Asian cities provides a great stage for western design forces. More and more urban reconstruction projects in Asian“key areas” are conceived and executed by overseas design companies. SOM, as one of the best “localized” overseas design companies, has participated in more than one hundred of urban design projects in Asia, which has greatly changed the urban image and architectural style of Asia. Its space model of “grid road system + high-rise building” replaces the traditional urban pattern of “street + residence” which has existed for a long time, causing huge cultural conflicts and historical rupture. The ancient urban fabric is embedded with distorted images of the new city. Based on the planning of MRT Jakarta, Bandar Malaysia and Hanzheng Street Regeneration Plan in Wuhan as examples, this paper attempts to uncover the cause of formation, the motivation mechanism and the evolution of “grid road system + high-rise buildings” space model, and to explore how Asian cities (especially historical cities), under the impact of overseas design companies, adhere to and realize the urban modernization with local characteristics. The authors quest for a respectful and considerable design for urban history and cultural diversity.


Paper 39

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 39, 2019.

Application research of modular design in modern residence W. MENGYANG Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: modular design, space combination, optimized design Numerous environmental factors have become major obstacles to the further development of the construction sector. Standards, technologies, and concepts in various fields will gradually change with each other in the future, and the field of architectural design is the same. Therefore, rational docking industrialization and sustainable standards are inevitable trends in the field of architectural optimization design. In this paper, modular design is used as the entry point for the development of the architectural design. The role of modular design in architectural design and solving social problems is reviewed. A systematic research framework system is proposed to analyze and summarize the spatial combination methods in buildings. From the macro level, we discuss the interdependence between modular design theory and architectural design, combine the current development trend of architectural design, explore the influence of modularity on architectural design concepts, and dig deep into effective technical strategies.


Paper 40

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 40, 2019.

Architectural visual design of contemporary era J. XIN, G. MEDVEGY Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: traces of the times, technology and science development, art design, architectural visual language Architecture is not only engineering technology but a kind of plastic art, and it is also a kind of the most powerful visual arts. The visual styling characteristics of buildings are inextricably linked with the development of the times. Walter Gropius had long suggested that architecture should be developed by times. “Buildings are not the ultimate, buildings are constantly innovating. The concept of aesthetics changes with the advancement of ideas and technology.” Reviewing architectural history in the world, the timing of every major advancement in science and technology, changes in the visual language of architecture can be the most valuable proof of the changes of the times and the development of science and technology. It can be said that architecture is the art with the most traces of the times. The modern industrial revolution of the 18th century subverted the traditional architecture that humans had lasted for thousands of years, directly leading to the birth of modern architecture with strong cosmopolitan features; the technical updates that followed have been constantly advancing the development of modern architecture and inspiring the emergence of new ideas in architecture. Nowadays, with the rapid development of science and technology, human beings have begun to enter a new era of technology which will be known as the era of artificial intelligence. As an important part of human life, architecture has also undergone more or less changes in the visual level, and this change will be rapidly updated and changed with the great progress of science and technology. The international studio, designed by Dr. Gabriella MEDVEGY, the Dean of Faculty of Engineering and Information Technology, University of Pécs, is a good example of contemporary architecture. The building perfectly reflects the visual language of contemporary architecture; both the building volume and the architectural skin are organically integrated with the campus environment, reflecting the architectural characteristics of the era. The design work starts from the use function and fully considers the different needs of teaching, research, practice and exhibition. The interior space of the building can be changed, expanded or reduced according to the functions of use and energy saving and environmental protection, and unlimited space is reserved for its expansion function.


Paper 41

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 41, 2019.

A feeling of awareness – site, history and human Q. ZHANG1 , A. HUTTER2 1

Marcel Breuer Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Institute of Architecture, Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: site, history, humanism, contemporary architecture, awareness “With my design I can help create an awareness” said Peter Zumthor, while many architects were seeking of the role of contemporary architecture. Nowadays in a global content, with huge reformation and complex long history of cities, there are so many questions and changelings for architecture. By simply following the practical requirements, preserve or repeat some historical fragments, we couldn’t create corresponding connection with the essential character of the site and time, neither can eliminate the feeling of loss which have been brought by modernism. How site, history and human’s experience should be recreated and be presented? How humanism should work properly during the design process? Through the comparison of extraordinary design approaching, and investigation of three local projects in China - one transfers an old hog lot site into a contemporary art gallery in the graceful popular nature sight in Wuhan, one transfers an historical cotton packaging factory into a culture creative center in downtown of Wuhan, the other one transfers a high quality reinforced concrete frame structure slaughterhouse which built in 1933 into a city culture center in Shanghai. This paper tries to explore of proper way of how contemporary architecture can be competent in its new role. In this new way, architecture can make spiritless matter appear alive and excite emotion; to make something hidden present which is a contradiction in itself, and to give a shape of awakened understanding of site, history and human.


Paper 42

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 42, 2019.

Research on coastal landscape design of Mingzhu bay in Nansha, Guangzhou Z.X. LIANG Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: ecological landscape, regional characteristics, coastal landscape China’s coastline is endless, and these coastlines support the development of coastal cities. There is an unbreakable relationship between the coastal cities and coastal landscape design. The coastal landscape serves as an important window to display the image of a city, and it has a significant boost to the urban environment. But now, the unique regional characteristics and connotations of the city have been ignored due to blindly pursing aesthetic values in the process of coastal landscape design. The homogenization of the coastal landscape design is obviously unable to meet people’s requirements for their emotions. The leak of regional characteristics also took away the soul of the city. The project is about the research on coastal landscape design of Mingzhu Bay in Nansha, Guangzhou. Nansha is served as the most important south gate of Guangzhou, has valuable bay resources. In addition, under the strategy of Guangdong, Hong Kong and Macao Bay Area, Nansha will be created to the new sub-center of Guangzhou and Mingzhu Bay will become the starting area of the planing. Through the combination of theory and practice, I have analyzed the land situation, functional area and population structure of Nansha Mingzhu Bay. Then I have proposed a corresponding coastal landscape design strategy, in order to create a comprehensive coastal landscape with functional, cultural and ecological features.


Paper 43

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 43, 2019.

Energy efficiency / new types of energy spaces Z. ZRENA, E. SZÜCS, G. GAZDAG, B. KÓSA, T. KONDOR Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: Solar Decathlon Europe, SOMESHINE TEAM, Hungarian NEST+, energy efficiency, energy spaces Solar Decathlon Europe is an international, innovative building competition, between several universities. The aim of this competition is to encourage creative students for collaboration with companies, researchers, specialists, sponsors to create new innovative and energy efficient houses, which are based on renewable energy and the conscious use of resources and sustainability. The Solar Decathlon Europe 2019 was organised in Szentendre, Hungary. In this competition, our team was called Someshine Team and it was a collaboration between University of Pécs, University of Miskolc and the Algerian Univerity of Blida. This team built the Hungarian Nest+ house, which is a suggestion of a solution for reusing/consumption the 800.000 “Kádár-kocka” (Kádár-cube) being in Hungary. The starting point is a quadratic floor plan, bad energetic conditions, outdated spatial organization, leaving Hungarian traditions, but fairly good structural condition building. These houses are part of our built heritage, part of our history, and we have a lot of them. One of our main tasks is the energy-related renovation of the available structures, and pushing our energy balance in a positive direction with creating new type of energy spaces. These viewpoints could be examples to follow for the owners of Kádár-cubes. Furthermore, an important task was the comfort inside the building, what we wanted to reach environmentally consciously, whit passive methods. All in addition, we used several “low-tech” technologies, which are part of our architectural traditions, and affordable for the population.


Paper 44

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 44, 2019.

Research on the planning strategy of cultural and creative industrial park with Northeast regional characteristics L. ZHAO1 , A.T. KERTÉSZ2 1

Marcel Breuer Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: regional culture, cultural and creative industry, planning strategy Cultural creative industry is a new industrial form developed in the background of global consumer society. It is a combination of cultural industry and creative industry. It emphasizes the creation and promotion of cultural resources relying on creativity, skills and talents. It generates high value-added products. Compared with domestic first-tier cities or other cities with developed cultural and creative industries, the literary and creative industries in Northeast China are still in their infancy. At present, there is no case of literary and creative industries based on Northeast culture and related theoretical research. Therefore, it is very necessary to carry out some research on the planning strategy of cultural and creative industrial parks with Northeast regional characteristics.


Paper 45

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 45, 2019.

Urban design meets health - battle against mosquitos, case study in Pécs J. GYERGYÁK, V. BARACSI SMART CITY Technologies Research Group - “Biomedicine” Work team, Department of Architecture and Urban Planning, Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: urban design, environment design, health, mosquito, prevention The operation of cities is a very complex phenomenon, similar to the design of urban tissues. Health issues are always integrated in the design process, but just sometimes are in the spot. Nowadays, there is more and more important focus on the healthy environment, which consists a lot of different parameters and based on a wide range of design elements. Climate change confronts our civilization with many challenges like the increasingly invasive mosquito invasion. Controlling mosquitoes, both from human and animal side, is becoming an increasingly important issue. The city of Pécs and University of Pécs have started a monitoring system to identify the presence of mosquitoes for years and been working on making preventive steps. SMART CITY Technologies Research Group - “Biomedicine” Work team has been working on setting up different methods to decrease the mosquito population by biological ways instead of chemical solutions, which is harmful for the ecosystem. This paper examines different opportunities as preventive tools in the context of urban development and design.


Paper 46

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 46, 2019.

The lighting design and the visual comfort in therapeutic centers N. SADOUD1 , E.SZ. ZOLTÁN2 1

Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Hungary 2 Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: interior space, addicted patients, daylight, artificial light, visual comfort, architectural dimensions Many experiments were carried out on different buildings to approve the importance of the openings in the interior space for the well-being of the users, and efficient utilization of these spaces. It turned out that among the most important parameters for improving the quality of the interior space is the lighting quality provided in it, and how it may influence the patients who experience psychological disorders (addicted patients). This study seeks to improve the lighting quality inside treatment centers for addicts by suggesting foundations linking between the architectural dimensions and the perception of users, far from the standardization that has appeared insufficient to ensure the well-being of patients. The aim of this research is to ensure a visual comfort for patients inside these existing institutions and to propose a balance between daylight and artificial lighting design. The method suggests integrating the architectural dimensions which can influence the emotions of the users with the factors that control the spatial quality, while taking into consideration the existing physical and functional conditions of these establishments.


Paper 47

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 47, 2019.

Viewpoints of making heritage place inventory through the example of the Museum of Applied Arts K.L. SEIDL Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: built heritage, heritage place inventory, heritage protection A well prepared heritage place inventory is a guideline to help the architect while renew a monument. The document draws attention to the building’s truly important and retained elements, it can help to put the focus on the essential parts, as well as gives an image about the condition of the items. However making a heritage place inventory is based on a subjective mensuration. On the one hand the Hungarian law doesn’t discuss exactly the method of the survey. Neither the Office of Monument Protection doesn’t give a template or guideline to the art historian. On the other hand there are more attitude exist cause of the difference between architects. Dissimilar specialists consider something else important, something else to record or have difference while diagnose the conditions. I want to demonstrate a method of a heritage place inventory through the example of the Museum of Applied Arts.


Paper 48

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 48, 2019.

The heritage and landscape reconstruction of the Intercisa Castellum in Dunaújváros N. PINTÉR, J.G. SZIGONY Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: Limes, Dunaújváros, Intercisa, heritage protection, landscape heritage To understand our present and future it is important to present our history to the world. The protection of our heritage is necessary. However, in this case, in addition to traditional heritage protection, we must also consider the protection of our natural heritage. A good example is the reconstruction of the Intercisa Castellum in Dunaújváros. In this city there are a lot of Roman memories, thanks to the Limes fortress system, which was built along the line of the Danube. Within this project which is focused on the archeological remains of the Principia and the Castellum area, these memories will be presented with architectural and landscape design tools.


Paper 49

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 49, 2019.

Thermal analyses of tensile structure of the Expo Center in Pécs S. NAGY Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: tensile structure, energy simulation, building energy performance With regard to the wider usage of tensile structures, thermal insulation properties are essential. During my study I will attempt to group solutions according to their thermal properties and form designs. In the case of tempered tensile structures building physics analyses play an important part. With a one layer structure the thermal conductivity factor is very high, while heat mitigation and heating delay are low, causing the internal temperature to change almost immediately. The energetic properties of the structure can be improved, for example by applying a heat insulated surface or cushioned tensile structure. Apart from discussing shape and design my study will try to answer the question whether the placement of the supporting structure has thermotechnical consequences (both inside and outside). I started my research with an existing structure - the energetic simulation of the Expo building in Pécs. By using a thermal camera I immediately had an idea about which properties are to be regarded as significant. By comparing the simulated and measured data I intend to prove that thermally insulated tensile structures indeed have a good reason to exist.


Civil engineering


Paper 50

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 50, 2019.

Investigation of the effect of formwork shape on packing density of aggregate K.A. KÁROLYFI, D. HARRACH, F. PAPP Faculty of Architecture, Civil Engineering and Transport Sciences, Széchenyi István University, Hungary

Keywords: packing density, aggregate, formwork shape Packing density of aggregate influences greatly the properties of fresh and hardened concrete. Maximization of packing density could increase the flowing ability and segregation resistance of the fresh concrete and the compressive strength of the hardened concrete. Furthermore, aggregate mixtures with maximum density require lower amount of cement paste to fill the voids between the particles, which means that they are less expensive and more favourable in the point of view of durability. The determination of maximum density is difficult experimentally; therefore continuous and discrete models have been developed for that purpose. However, these models consider only mixtures placed in a formwork having large dimensions, as compared with the maximum size of the aggregate. Since the dimensions and shape of the structural elements can be considerably different, it is necessary to examine their effect on packing density of aggregate, which is a key factor in terms of the concrete technology. In this study, 16 different formwork shapes are examined in the case of defined aggregate fractions. Results show that increasing the size of the formwork increases the packing density of the aggregate, but in different extent considering formwork sizes, the grading limit and compaction method.


Paper 51

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 51, 2019.

Comparative study of moment resisting frames system and dual shear walls-frames system using ETABS 2016 A. ABOU LTEAF1 , I. GULIAS2 1 2

Faculty of Engineering and Information Technology, University of Pécs, Hungary Faculty of Civil Engineering Osijek, University of Osijek, Croatia

Keywords: shear walls, moment resisting frames, dual system, lateral force method, response spectrum method, ETABS 2016 The purpose of this report is to determine the effectiveness of using shear walls with momentresisting frames by modeling two bare frame structures. The first model is a combination of bare frames and shear walls, and the second model is without shear walls, and analyzing them statically (lateral force method) and dynamically (response spectrum method) using ETABS 2016 software, and comparing the results of base shear forces, displacements and vibration modes, in order to form a comprehensive understanding of the proper use of shear walls. The report raises critical questions regarding the key factors of resisting seismic forces on similar structures, where rigidity or ductility can play opposing roles in the overall structure resistance.


Paper 52

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 52, 2019.

Correlations between dynamic penetration test results and coarse-grained soils characteristics E. KUCOVÁ Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovakia

Keywords: dynamic probing, coarse-grained soils characteristics, correlations Determination of physical and mechanical soil parameters and properties is an inevitable part of the design of geotechnical structures. These parameters can be specified by either laboratory or field testing. This paper discusses the determination of the coarse-grained soil parameters from the results of dynamic penetration test, which nowadays belong to the most widespread field test. The development of this test dates to the 20th century, when penetrometers have undergone various modifications, changes and standardizations. However, the task that has persisted is the interpretation of results and correlation with the physical and mechanical properties of soils. Therefore, this paper focuses on an overview of correlations for individual types of coarse-grained soils. Analysis of different correlations and factors infuencing test results are presented.

Acknowledgments This paper was supported by Grant Agency of the Ministry of Education, Science, Research and Sport of the Slovak Republic, VEGA, grant project No. 1/0842/18.


Paper 53

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 53, 2019.

Inverse determination of material properties of timber beams reinforced with CFRP using load-deflection data K. SAAD, A. LENGYEL Faculty of Civil Engineering, Budapest University of Technology and Economics, Hungary

Keywords: spruce, timber beam, CFRP, modulus of elasticity, yield stress, Hill anisotropic, bilinear, FEM This work shows the effect of the reinforcement of timber beams with CFRP strips for the enhancement of mechanical performance. It is easy to obtain measurement data from experiments on loads and deflections but difficult on strains or stresses. Finite Element models are presented to inversely determine the elastic (or plastic) properties of the timber material and of the reinforcing CFRP strip. Ultimate stresses are also provided. Experimental data on bending tests of spruce beams obtained in a previous stage of the research are used to demonstrate the method.


Paper 54

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 54, 2019.

Seismic retrofit of steel frame structures M. ISMAIL Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: steel frame structures, seismic retrofit, dynamic analysis, material cost Moment resisting frames are considered as an effective seismic force resisting system that is used for steel structures. Some of these structures that were built in high seismic hazard zones were designed according to old strength-based design codes. Currently, these structures do not meet the requirements of the new seismic codes. Therefore, the seismic retrofit of these structures is mandatory and cannot be overlooked. Steel braces and concrete-steel composite elements are common solutions for enhancing the seismic behavior of existing steel frame structures. This paper presents a numerical study that evaluates different possible techniques for the seismic retrofit of existing steel moment-resisting frame structures. The study investigates the performance of three multi-story buildings with different heights that are located in a high seismic hazard zone. Three retrofit techniques were introduced including: (1) X-Steel braces, (2) buckling restrained composite braces, and (3) composite concrete-steel plate shear walls. The seismic performance enhancement of the studied structures was evaluated in terms of the structure’s fundamental period, maximum inter-story drift and maximum base shear-toweight ratios. Moreover, the cost of retrofitting material was estimated for each technique and they were compared to select the retrofit technique with the least constitutive material cost.


Paper 55

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 55, 2019.

Analysis and cross section development of cold-formed steel rectangular hollow flange beams N. EID, A.L. JOÓ Department of Structural Engineering, Faculty of Civil Engineering, Budapest University of Technology and Economics, Hungary

Keywords: cold-formed steel profiles, rectangular hollow flange beams, flexural capacity, shear capacity, bending and shear interaction, Eurocode, numerical modelling The use of cold-formed sections has become so common in construction as it has many advantages including: light weight, high resistance, good quality, low manufacturing costs and wide flexibility in producing various shapes of cross sections giving it the ability to adapt to structural and architectural requirements at the same time, as well as direct and simple manufacturing process with ease in transportation and construction. One of the recent applications of cold-formed steel sections is LiteSteel Beam (LSB) with rectangular hollow section flanges, which is a new cold-formed steel section developed in Australia. Generally, it is used as secondary beams; nevertheless, many researches are being done in order to use it as main structural elements and enhance its resistance capacity. It has many benefits comparing to similar hot rolled sections such as light weight and high torsional rigidity; however, the fact that it is susceptible to different buckling types reduces its resistance. Therefore, the research aim in this paper is to concentrate on rectangular hollow flange beams behavior considering the effects of local buckling in accordance with bending, shear and bending and shear interaction resistances. Previous experimental research at Trento University, Italy, was carried out to determine the flexural capacity of laterally-restrained rectangular hollow flange beams. Nonlinear finite element analyses were carried out in our research by using ANSYS software and the previous experimental research was used to verify the results. Furthermore, another numerical model of optimised cross section was developed to determine the enhancement effects of intermediate stiffeners. The corresponding resistances were calculated according to EN 1993-1-3 which showed that current design rules are conservative. However, a small improvement in the bending capacity of around 5% was achieved due to the stiffener in the flange. Subsequently, studying shear behavior of this beam type was conducted numerically and theoretically for both original and optimised cross sections. The results showed that the use of longitudinal stiffeners in the web plate is useless and that the current design rules in EN 1993-1-3 are not competent enough to determine the shear capacity of rectangular hollow flange beams. Finally, shear force and bending moment interaction was studied. Theoretical curves for original and optimised sections were drawn based on EN 1993-1-3 and numerical results were obtained as well by performing the same model used in shear case with different cantilever lengths. Design rules for shear and bending interaction were also conservatives according to the results. Therefore, more studies can be conducted to develop the current design rules in EN 1993-1-3, in shear, bending and shear and bending interaction. On the other hand, future research work to determine the effect of different intermediate stiffeners sizes for the optimised section in bending case might be performed.


Paper 56

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 56, 2019.

Composite steel and RPC testing P. MICHALEK Faculty of Civil Engineering, University of Zilina, Slovakia

Keywords: composite, RPS Reactive powder concretes are a set of ultrahigh–strength concrete reinforced with fibres. Their compressive strength is greater than 100 MPa. In laboratory conditions, it can reach even 800 MPa. For assuring connection of steel beams and a concrete slab, steel stud connectors are used. The investigation of such shear connection efficiency, in the case of this higher strength concrete deck using standard push-out test specimens has been executed. The experimental results are presented in the paper.


Paper 57

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 57, 2019.

Estimation of capillary rise in unsaturated gypsums sand soils S. ALSAMIA1 , M.SH. MAHMOOD1 , A. AKHTARPOUR2 1 2

Faculty of Engineering, University of Kufa, Najaf, Iraq Faculty of Engineering, Ferdowsi University of Mashhad, Mashahd, Iran

Keywords: sandy soil, capillary rise, Sieve analysis The phenomenon of capillary rise happens in soils, and it has a crucial effect on many engineering applications. Many researchers have concluded several experimental equations to measure this height. This paper presents a comparative and practical study of the three most important equations used in most researches which are Lane and Washburn, Fetter, and p-k equations. The estimated heights by these three equations were compared with the experimental tests on sand samples taken from Al-Adalah, Al-Furat, and Al-Jameah districts located in AL-Najaf city in the southwest of Iraq. The percentage change for each equation compared with the experimental work. The results illustrated that the Fetter equation is the closest equation to experimental height and gives moderate values, unlike the Lane and Washburn and p-k equations.

Figure 57.1: Capillary rise from different sites and methods


Paper 58

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 58, 2019.

Review of using neural networks in traffic safety G. ALDABAIBEH, L. KISGYÖRGY Department of Highway and Railway Engineering, Budapest University of Technology and Economics, Hungary

Keywords: neural network, road accidents, machine learning According to the WHO approximately 1.35 million people die each year as a result of road traffic crashes. 93% of the world’s fatalities on the roads occur in low- and middle-income countries. Therefore, providing a road network with high safety levels is crucial. This paper tries to shed more light on reviewing the efforts dedicated to using NN in the field of traffic safety ranging from artificial neural networks (ANN), hybrid ANN.


Paper 59

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 59, 2019.

Overview and analysis of the overheating effect in Sudanese modern buildings S.I.A. ALI, Z. SZALAY Department of Construction Materials and Technologies, Budapest University of Technology and Economics, Hungary

Keywords: climate change, overheating, thermal comfort, dynamic energy simulation, Sudan According to the latest climate change reports, average global temperatures are likely to rise by another 2 to 8.6◦ C by 2100. Overheating in buildings is becoming a problem leading to increased discomfort hours or increased cooling energy demand. Overheating is influenced by many factors, such as climate conditions, shape and orientation of the building, shading as well as the choice of building materials, etc. Sudan is suffering from harsh summers. Most of the modern buildings in the urban area are costly and not compatible with the recent and future climate phenomena. On the other hand, application of cooling and heating devices is relatively expensive and beyond the reach in Sudan. Till now there are big gaps and shortages in the relevant knowledge and research on overheating, particularly in the developing countries such as Sudan. The main objective of this research is to give an overview on the overheating problem and its diverse effect on the thermal comfort and energy performance of a building. A dynamic energy simulation has been performed for a selected case study using the DesignBuilder software in order to examine and check the overheating effect and the thermal comfort in the Sudanese modern building typology. The final results compare different selected technical features and building materials options.


Paper 60

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 60, 2019.

Investigation of the warping torsion of a press machine A. ERDŐS, K. JÁRMAI Institute of Energy and Chemical Machinery, University of Miskolc, Hungary

Keywords: warping torsion, press machine, numerical simulation, FEM, optimization In this paper, the investigation of a press machine with 30 tons of pressing weight is presented. This machine positions itself by moving the tool, not the workpiece, so the point of the load can move along the beam. The beam of this machine is an I-beam which has an open cross-section. It is known that this type of cross-section is sensitive to torsional stress. The stress from warping torsion is normal stress, so the opened cross-section is more sensitive to this type of stress. The bimoment that causes normal stress can also be very high, so dealing with this type of stress is very important (Figure 60). To determine the value of the normal stress, analytical and finite element methods are used. The mechanical model is a holder at one end which has a concentrated force with “e” eccentricity that generates the torsional moment and the other is the fixed end of the beam. The additional main loading of the beam is bending. Finally, the other primary source of stress is the Saint-Venant torsion. These three components give the equivalent stress, which should be less than the allowed stress, which depends on the yield strength of the steel. All three parts are investigated with finite element method also with the deformation of the beam. The deformation also must be less than half a millimeter to ensure accurate manufacturing. The geometry of the I-beam can be optimized based on the deformation of the beam or to find the geometry that gives the minimal reduced stress. The fatigue of the beam was further investigated. The number of cycles was determined with two different periods of time, which was 20 and 15 years with two different working shift which was 2 and 3.


Paper 61

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 61, 2019.

Predicting the effect of load variation in an individual wastewater treatment unit B. BÁBA, T. KARCHES National University of Public Service, Hungary

Keywords: activated sludge, biokinetic modelling, decentralised systems, individual treatment unit Small size wastewater treatment units are used as a decentralized solution for treatment and storage of municipal wastewater and these units could perform the efficiency equivalent to centralized systems. For design and operation of such a system the basic biokinetic processes shall be understood; which can be formulated with equations describing physical, chemical, biological processes. These include the growth rate of bacteria involved in wastewater treatment and the substrate (nutrient) used for this purpose. Equation-based models can now be used in one of the most widely used simulation software, GPS-X. The simulations were carried out using the ASM model family, which could describe wastewater treatment processes in good agreement with the real plant performance. With the help of the calibrated simulations a small size wastewater treatment unit was designed assuming uneven load distribution. The unit consists of anaerobic, anoxic and aerobic volumes with addition of a secondary clarifier. Furthermore, recommendations were given for the optimal operation of the wastewater treatment unit in order to handle the alternation of the receiving load.


Paper 62

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 62, 2019.

The impact of hydropeaking on sediment transport D. BUCEK, P. ŠULEK, M. ORFÁNUS, P. DUŠICKA Department of Hydraulic Engineering, Faculty of Civil Engineering, Slovak University of Technology, Slovakia

Keywords: sediment transport, hydropeaking, run-of-river hydropower plant The European Union is aiming to increase its use of renewable energy to 20% of the total energy consumption by 2020. Variable renewable energy sources, such as solar and wind power, require flexible management of energy sources in order to stabilize the power grid. Immediate changes in power generation and consumption will most likely continue to be compensated by the operation of hydropower plants and their importance will increase in this respect. Hydropower plants cause frequent flow fluctuations - hydropeaking. Effect of hydropeaking on flow and sediment transport regime has direct and indirect environmental impacts. This study examines the short-term impacts of hydropeaking of run-of-river hydropower plants on the sediment transport using numerical morphodynamic model. The model was subjected to various hydropeaking scenarios on daily to sub-daily scale and within the operational bounds of the hydropower plant.


Paper 63

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 63, 2019.

Analyzing the impact of intake structure modifications on the distribution of flow at a low pressure SHPP L. BYTCANKOVA, J. RUMANN Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovakia

Keywords: low pressure small hydropower plant, intake structure, numerical flow modelling, flow homogeneity Intake structures are an important part of small hydropower plants, which affect the water flow, turbine operation and thus the total power of a hydropower plant. The flow quality is significantly influenced by the flow homogeneity in the intake to the turbines, as the inhomogeneous flow velocity distribution has a negative impact to the operation of the turbines, such as uneven load on the mechanical parts which leads to decrease in efficiency and faster aging of turbine parts. This paper describes the flow assessment in the intake of a low pressure small hydro power plant (the Stará Lubovna Small Hydropower Plant) with respect to the flow homogeneity. A 2D numerical flow modelling software, has been used for the evaluation of the flow at the intakes. The flow simulations for actual operation of have been modelled and assessed. The simulations proved a negative impact of the original structural design on the flow conditions at the intake such as a significant unequal distribution of flow and significant deviation in flow velocities from the recommended values. In order to optimize the velocity distribution at the intake structure, two modifications of the intake design have been proposed and assessed using the 2D numerical model. Results were compared and proved an improvement to the flow velocity distribution in the intake of the small hydropower plant.


Paper 64

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 64, 2019.

Laser tracker performance verification with calibrated steel bar R. CHOLEVA, A. KOPÁČIK Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovakia

Keywords: Leica AT960-MR, standard deviation, warm-up effect, testing Various measuring systems are often used in the industrial environment to determine the dimensions of large industrial objects and machines. These measuring systems also include laser trackers, which achieve high precision of 3D point coordinates (up to tens of micrometres). If we want to achieve a measurement result with such high precision, we need to consider various factors. For example, environmental factors (temperature, pressure, humidity, vibration, refraction), geometrical and optical misalignments (non-orthogonality and non-intersection of device axes, encoders eccentricity) and so on. There are factors which are specific to the laser tracker and affect the measurement as well. This includes, for example, heating the interferometer, which also heats up other parts of the instrument (warm-up effect), which affects the accuracy of the measurement. The warm-up effect is most seen right after the device is turned on and decreases over time. Steady-state conditions should be achieved after approximately 30-40 minutes. To verify the laser tracker measurement performance, an experiment was performed with a calibrated steel bar in a controlled laboratory environment. The length of the calibrated bar was determined at several distances from the instrument and in various measurement modes (fast, standard, precise). The aim was to find out how the warm-up effect occurs when determining the length of a calibrated steel bar at several distances. At the same time, the effect of used measurement mode was also monitored. The experiment lasted approximately 4 hours, during which the temperature of the steel bar was continuously measured for a correction for thermal expansion. The results of the experiment show that in a stable environment, the measurement mode does not have a major influence on the resulting precision. On the other hand, the affection of the warm-up effect has not been confirmed and another experiment is needed.

Acknowledgments This publication was created with the support of the Scientific Grant Agency of the Ministry of Education, science, research and sport of the Slovak Republic and the Slovak Academy of Sciences for the project VEGA-1/0506/18.


Paper 65

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 65, 2019.

Present condition analysis of sewer network in urban catchments R. CSICSAIOVÁ, I. MARKO, J. HRUDKA, I. ŠKULTÉTYOVÁ, Š. STANKO Department of Sanitary and Environmental Engineering, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovakia

Keywords: wastewater, block rainfall, combined sewer network The mass migration of the population, development of urbanization, and urban infrastructure characterized the second half of the 20th century. The unfavorable effects of urbanization on the natural environment of cities include an increase in the number of impermeable areas. The usual method of rainwater management in cities is a concept of the fastest drainage of rainwater from the urbanized area. Most Slovak cities have built combined sewer networks. They fulfilled the required aim at the time of design and construction. There is a gradual increase in the number of connected households and increasing the area of the said drainage basin. We are currently entering a period when the capacity of existing sewer networks is already insufficient. It is necessary to assess them for different precipitation loads. The study aims to assess the hydraulic capacity of the sewer network in the urban catchment area of Trnava. Sewer networks, especially in the older part of the city, are hydraulically undersized, overloaded, physically worn, obsolete, and statically disturbed. They are not in line with current requirements for reliable sewerage operations. The assessment focuses on the evaluation of variants with different rain periodicities. Elaboration consists of modeling the current state of the assessed sewer network and subsequent loading of this network by several block rain with different periodicity.

Acknowledgments This work was supported by the Scientific Grant Agency of the Ministry of Education, Youth and Sports of the Slovak Republic and the Slovak Academy of Sciences within the project VEGA 1/0574/19, co-funded by the European Regional Development Fund and by the Slovak Research and Development Agency under the contract No. APVV-18-0203.


Paper 66

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 66, 2019.

Climate change impact on runoff in Boca and Ipoltica River basins in Slovakia G. FÖLDES, M.M. LABAT, S. KOHNOVÁ, K. HLAVCOVÁ Department of Land and Water Resources Management, Faculty of Civil Engineering in Bratislava, Slovak University of Technology, Slovakia

Keywords: short-term rainfal, climate change, CLM scenario, runoff The paper focuses on the changes in runoff caused by changes in land use and climate. The study was performed in the Boca and Ipoltica River basins, which are located in the Low Tatra National Park in Slovakia. Due to the impacts of climate change, there is evidence that shortterm rainfalls have been observed to occur at a higher frequency than before in Europe, which causes the higher values of runoff, and extreme flash and moody floods. The first part deals with changes in shorter rainfall characteristics, mainly in seasonality, trends and design values of short-term rainfall. The second part focuses on the impact of changes in short-term rainfall on changes in runoff. Climate change is represented by data from Regional Climate Model (RCM) scenario. The estimation of runoff change is provided for the period 2070 – 2100. These results are compared with the results from actual observations. The design floods are calculated using the Soil Conservation Service - Curve Number method. Based on the results, the runoff was affected by climate changes. Hence, there is an importance to re-evaluate the land use management and practices.


Paper 67

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 67, 2019.

Adaptive data parameterization of baseflow and flashflood models of an ungaged watershed G. ÁMON, K. BENE Department of Transport Infrastructure and Water Resources Engineering, Széchenyi István University, Hungary

Keywords: numerical modelling, watershed hydrology, hydrodynamical modelling, parameter sensitivity The common feature of streams in steep sloping watersheds is that there is a significant change from base flow to flashfloods; sometimes two or three orders of magnitude. In Hungary, these streams are usually ungaged, so the main goal is to get the best information out of the available data and models. This paper evaluates the parametrization models for flash floods, and baseflow calculations in the Morgó-creek watershed. The watershed features both urban and natural land use conditions. In order to produce baseflow and flash flood scenarios from both hydrological and hydrodynamical models different parameterization are necessary. High probability baseflows can help to evaluate and monitor the current and future conditions and health of the local ecological systems. For baseflow modelling a two dimensional finite element method, for high water a model with finite volume was used. Flash floods with low probability can help to survey damage and prevent damage in urban areas. Uncertainty in hydrological model parametrization can cause significant prediction errors. Monte Carlo analysis was applied to determine parameter uncertainty on watershed response. The uncertainty analyses of the hydrological model was used in the hydrodynamic model to assess the final prediction error for baseflow and flash flood. While the hydrodynamic baseflow and flash flood models have different space and time scales, the two model solutions are influencing each other. Proper analyses and comparison of the selected scenarios can helped to determine an optimal design for the Morgó-creek.


Paper 68

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 68, 2019.

Microscopic vehicle emission modelling using GAMLSS approach H. HAJMOHAMMADI1 , G. MARRA2 , B. HEYDECKER1 1 2

Centre for Transport Studies, University College London, UK Department of Statistical Science, University College London, UK

Keywords: vehicle emission modelling, GAMLSS approach, air pollution Vehicle emission models are widely used to estimate air pollution from road transport. This estimation can then be considered for transport management and traffic control policies, to quantify their impacts on urban air quality. The focus of this study is to investigate the relationship between vehicle dynamics (speed and acceleration) and tailpipe emission: laboratory measurements have shown this to be non-linear with irregular form. For this reason, the use of the generalized additive model for location, scale and shape (GAMLSS) was investigated. This approach uses semi-parametric thin plate splines as functions of speed and acceleration to estimate the mean, variance and other parameters of the emission distribution: because of the flexibility of this model structure, this requires large datasets and substantial computational effort. The dataset used for this is second-by-second emission laboratory measurements of emissions from individual vehicles following a driving cycle that was recorded in urban, suburban and motorway areas of London. The GAMLSS emission model estimates each of CO2, CO and NOx in each second for two different vehicle types (petrol or diesel). The performance for the resulting model is then compared with more conventional ones of classified log-polynomial form. The results show substantial improvement in accuracy and quality of estimation by the GAMLSS approach, fully justifying the data and computational requirements.


Paper 69

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 69, 2019.

Experimental investigation of fire resistance of glulam beams L. KUCÍKOVÁ, T. JANDA, M. ŠEJNOHA, J. SÝKORA Faculty of Civil Engineering, Czech Technical University in Prague, Czech Republic

Keywords: GLT beam, fire curve, charred layer, residual bearing capacity Increasing building safety requirements claim deeper investigation of the time dependent fire resistance of Glued Laminated Timber (GLT). This is a multidisciplinary problem including heat conduction, water evaporation, chemical reactions, volume change etc., demanding a large number of material constants. If properly calibrated then such complex models should give us a good approximation of the evolution and shape of the charred or zero strength layer. It is doubtless that the calibration and validation steps require experiments. In particular, the results of large scale fire experiments are discussed, focusing mainly on the dependence of the charred layer depth and the temperature evolution inside the beam on the fire intensity and duration. The impact of the elevated temperature on stiffness and strength is proved via three-point bending and Pilodyn measurements of the original and fire-exposed beams.


Paper 70

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 70, 2019.

Hydrodynamic assessment of combined sewerage overflow chamber in Banská Bystrica M. ŠUTÚŠ, J. HRUDKA, G. RÓZSA, I. ŠKULTÉTYOVÁ, Š. STANKO Department of Sanitary and Environmental Engineering, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovakia

Keywords: 3D model, combined sewerage overflow chamber, hydrodynamic model This resarch deals with creating a hydrodynamic combined sewerage overflow chamber model in ANSYS Workbench 19.2 - Fluid Flow (Fluent). The 3D graphics model was created in the SpaceClaim modelling software which serves as the basis for hydrodynamic modelling. The model was created according to a real combined sewerage overflow chamber design in Banská Bystrica. The core of the work are simulations that should correspond to the estimated flow in the combined sewerage overflow chamber. The aim of this paper is to compare the impact of inflow speed and flow rates.


©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 71, 2019.

Paper 71

Laboratory analysis of the surface runoff from an urbanized area I. MARKO, R. CSICSAIOVÁ, J. HRUDKA, I. ŠKULTÉTYOVÁ, Š. STANKO Department of Sanitary and Environmental Engineering, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovakia

Keywords: rainwater, surface runoff, qualitative parameters In cities, due to the intensification of urbanization, a new source of urban pollution - surface runoff was identified. The formation of surface runoff depends on several parameters, the duration, and intensity of precipitation, the weather in the previous period, the surface characteristics of land use, etc. What is important to us is the character of the pollutants in the surface runoff, which depends on the chemical composition of the rain (emission in the air) and the sort of hard surface (roadways, car parks, sidewalk) on which falls rain. The research aims to focus on the analysis of the qualitative parameters of surface runoff from car parks and roadways. Samples were taken from the surface of Slovakia (Bratislava, Trnava) and Serbia. In laboratory analysis, we focus on determining the pH of rainwater, water conductivity, and concentration of heavy metal. The result of the experiment is a comparison of the concentration of the identified parameters with the recommendations of the Danish standards.

Acknowledgments This work was supported of “Mladý výskumník” STU grant under the ADOHODOV acronym, funded by the ‘Rectors office of the STU in Bratislava, the Scientific Grant Agency of the Ministry of Education, Youth and Sports of the Slovak Republic and the Slovak Academy of Sciences within the project VEGA 1/0574/19, co-funded by the European Regional Development Fund and by the Slovak Research and Development Agency under the contract No. APVV-18-0203.

Figure 71.1: Samples of surface runoff of rainwater


Paper 72

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 72, 2019.

Numerical analysis of composite slim-floor beams W. MEFLEH, N. KOVÁCS Department of Structural Engineering, Faculty of Civil Engineering, Budapest University of Technology and Economics, Hungary

Keywords: composite, slimfloor, CoSFBs, dowels Building floor systems have always been under developing process, seeking for long span flooring systems with shallow depth, and that has led to reach the composite slim floor beams (CoSFBs) systems which are interesting in view of economy and architecture, as well. Different types of shear connection were improved for (CoSFBs) to achieve the composite action. The most popular type is the headed studs which are welded on the upper flange of the steel I-beam, which solution needs larger structural depth. The span of normal composite beams is limited by the size of the steel section, since longer spans requires thicker and heavier sections which is not an economic solution. This is why (CoSFBs) has been developed with an innovative shear connection that uses concrete dowels with the transversal bars go through the web of the I-section reducing the structural depth. In (CoSFBs) with tie-bar as shear connections, the combination of the dowel reinforcement bars and the infill concrete is the main reason for the shear connection which is responsible for the composite work. In this research an experimental test under three-point bending test was modelled and analysed using (GID) and (Atena) software. After validating the advanced FE model with the test results of the international literature, several structural parameters were analysed with the aim to study their influence on the load bearing and deformation capacity of the beams. The parameters were related to the geometric of the beam (size of web openings and top concrete cover) and the strength of the concrete. The geometrical parameters had the higher influence according to this research; by decreasing the size of the web openings or adding a concrete cover on the top flange of the composite beam the ultimate load was increasing significantly and have advantageous influence on the deformations as well. Increasing the concrete compression strength of the composite beam did not provide significant influence on the structural behaviour. With these results we can conclude that focusing on the optimal arrangement of the geometrical parameters of the composite beam could lead to better structural behaviour with more economical solutions, so further research will be completed on more structural details in the future.


Paper 73

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 73, 2019.

Measures for flood discharge transformation on the Ondava River J. MYDLA, A. ŠOLTÉSZ, M. ORFÁNUS Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovakia

Keywords: flood wave, numerical modelling, lateral spillway, river bed capacity, protection dike This contribution deals with the mathematical modelling of water level on the Ondava River. Although the Ondava River has its protection dikes (coming from 1848), the capacity of the river bed – especially – at high flow rates is insufficient. The reason for the proposed research were flood situations from 2004 and 2010 when flood protection dikes breach happened and the flowing water endangered municipalities close to the river. In the location of the first breach (close to pumping station Ladislav) was built up a 250 m long lateral spillway which should release during higher discharges water into the territory on the left side of the protection dike. For mathematical modelling of flood wave progress the HEC-RAS software has been applied coupling 1-D and 2-D modelling procedure. Results of the mathematical modelling of surface water level regime in the Ondava River were compared with measured values and afterwards used for design of further flood protection measures utilized existing drainage channel system and pumping station, as well.


Paper 74

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 74, 2019.

Experimental assessment of effects of secondary stilling basin on energy dissipation at the Hricov Water Structure M. PAVUCEK, J. RUMANN Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovak Republic

Keywords: stilling basin, scour, energy dissipation, hydraulic physical modelling One of the main problems at the Hricov Water Structure is the scour development in the riverbed just downstream the weir. This problem has historical reasons, when due to the cost reduction during its construction, the size of the stilling basin at the weir was significantly reduced and partially substituted by heavy rock embankment. This solution provides the flow energy dissipation just partially, each flood discharge or non-typical or asymmetric operation of the control gates leads to a significant scour development in the rock embankment close to the foundations of the weir structure, which potentially endangers its stability. After each manipulation on the weir, which causes this scouring, a maintenance of the rock embankment is required to fill the scours occurred in the embankment. A permanent solution to this problem was experimentally investigated in the hydraulic laboratory on a two-dimensional physical model in a geometrical scale 1:40. Different variants of the secondary stilling basin were proposed and tested on the model for 16 different operational scenarios of the weir. The variants were designed with respect to minimizing the construction impact on the existing structures of the weir (foundations, pillars). On the model, size of the scours under the weir and formation of waves downstream the weir were examined and assessed for each tested variant. The investigation and its results are described in this paper.


Paper 75

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 75, 2019.

Application of waste management in the smart city G. RÓZSA, K. LUKÁCOVÁ, J. HRUDKA, M. ŠUTÚŠ, Š. STANKO, I. ŠKULTÉTYOVÁ Department of Sanitary and Enviromental Engineering, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovakia

Keywords: smart city, waste, waste management In the waste management sector, advanced intelligent technologies are starting to be used to ensure better living conditions for human beings. Examples and experiences from abroad indicate that the introduction of an intelligent waste management system can increase the production of sorted waste by approximately 10%. Such an innovative system in the waste management area can be a part of the Smart City concept, which aims to use modern technologies to operate cities and villages more economically and sustainably, with a minimal impact on the environment. Designing new waste collection systems and installing intelligent facilities for waste collecting, such as containers or underground containers with the sensor, a more efficient collection of waste can be achieved. This paper focuses on improving waste management in Mierovo village.


Paper 76

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 76, 2019.

Assessment the water replenishment of the Drava floodplain oxbow A. SALEM1,2 , J. DEZSŐ3 , M. EL-RAWY2,4 , D. LÓCZY3 1

Doctoral School of Earth Sciences, University of Pécs, Hungary Civil Engineering Department, Faculty of Engineering, Minia University, Egypt 3 Institute of Geography and Earth Sciences, Faculty of Sciences, University of Pécs, Hungary 4 Civil Engineering Department, Faculty of Engineering, Shaqra University, Saudi Arabia 2

Keywords: oxbow lake, replenishment, MODFLOW-NWT, lakebed leakance, hyporheic flow The channelization and water regulation works changed the water budget of Drava floodplain, particularly oxbow lakes. This profound human interventions led to dropping groundwater tables and increasing water shortage. To protect the wetland habitat and ecosystem services of the Cún-Szaporca oxbow in the Hungarian section of the Drava River, a largescale floodplain rehabilitation project was implemented for water replenishment to the oxbow lakes. Using 3D groundwater model MODFLOW–NWT, this study numerically assessed the sustainability and efficiency of this rehabilitation project The results clearly indicate that the replenishment period of 20 days, reported in the rehabilitation project, was insufficient to achieve the optimal water Lake stage of (91.5 m a.s.l.). Our research shows that the critical factor in water retention is the lakebed leakance and hydraulic conductivity of the underlying aquifer. Oxbow lake stage are mainly affected by the adjacent groundwater table that is regulated by the hyporheic flow of the Drava River. The efficiency of water replenishment relies on the period length with higher groundwater table and indirectly with high Drava River stage.

Acknowledgments The present scientific contribution is dedicated to the 650th anniversary of the foundation of the University of Pécs, Hungary. The first author would like to thank the Egyptian Ministry of Higher Education (MoHE) and Tempus Public Foundation for providing him the Stipendium Hungaricum Scholarship. Also, the authors are grateful for the financial support from the Hungarian National Science Foundation (OTKA, contract no K 104552) and by FEKUTSTRAT (No. 20765-3/2018) “Innovation for a Sustainable, Healthy Life and Environment” grant and to the South-Transdanubian Water Management Directorate for providing access to the necessary data.


Paper 77

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 77, 2019.

Phase-field modeling of glass fragmentation J. SCHMIDT Faculty of Civil Engineering, Czech Technical University in Prague, Czech Republic

Keywords: phase-field, glass, fragmentation, brittle fracture, dynamic fracture In this contribution we investigate the modeling of fracture in context of glass plate bending. Glass is almost purely elastic material with brittle post-breakage behavior. Sharp crack without process zone is represented by strain singularity from the mathematical point of view and numerical implementation is almost impossible. Therefore nowadays we employ the very popular phase-field models of brittle fracture. It brings regularization by smearing sharp crack into finite zone and crack evolution is driven by an as-small-as-possible regularization parameter. At first glance, the simplest test case is quasi-static bending, where inertia forces are neglected. However, the result is a single transverse crack and generally no fragmentation occurs. Considering the inertia forces leads to the creation of stress waves immediately after collapse and the fragmentation of glass can be observed. Moreover in dynamic regime, where second time derivative of displacements appears, it is possible to use central differences scheme. It leads to semi-explicit time integrator, where displacement field in specific time instant is expressed by explicit formula and corresponding damage is then calculated by a classic implicit form. Despite its conditional stability such formulation significantly simplifies implementation because spectral decomposition of the strain tensor is performed only for previous time steps. Furthermore, explicit formulation naturally unbind damage and displacement field and therefore the staggered or monolithic approach is no longer necessary.


Paper 78

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 78, 2019.

Hydraulic assessment of the impact of the closure structure realization on the Klátov river branch on the groundwater in the adjacent territory A. ŠOLTÉSZ, D. BAROKOVÁ, M. CERVENANSKÁ, Z.D. SHENGA Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovakia

Keywords: hydraulic assessment, Klátov river branch, closure structure, numerical simulation, flood protection dike The presented paper deals with the hydraulic assessment of groundwater flow in the area affected by the realization of the closure structure on the Klátov branch and in the adjacent territory of a dike which is located on the right side of the Little Danube. This hydraulic assessment is part of the project of the Slovak Water Management Enterprise, s. e. “Increasing the safety of the territory against the impact of backwater of the Little Danube and Klátov branch from Váh - I., II. and III. stage”, which also aims to increase and seal the dike on the right side of the Little Danube. The assumption for the execution of the technical measures of the mentioned three project phases is a continuous flood protection of part of the Žitný ostrov area around the Little Danube and the Klátov branch in the reach from town Kolárovo to Jahodná. Therefore, a 3D mathematical model was created to simulate groundwater flow by changing boundary conditions of surface water flow during flood periods.


Paper 79

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 79, 2019.

Definition of structural number of motorway pavement in Hungary I. SZENTPÉTERI Department of Highway and Railway Engineering, Budapest University of Technology and Economics, Hungary

Keywords: structural number, load bearing capacity, pavement deflection The load bearing capacity of pavement structures can be inferred by the use of falling weigth deflectometer. Many parameters can be calculeted from the deflections measured during the test, which gives an overview of the condition of each pavement structure layer. The AASHO road tests ended in the early 1960’s, after which the structural number was defined. The structural number was used to describe the performance of pavement. Since then, several theories have been developed to determine the structural number. This research shows how the state characteristics determined by different methods can be adapted to Hungarian deflection data series. The aim of the research is to define a structural number that can be determined from data measured with standard measurement settings. The presented equation was formed by processing multi-year data series of a Hungarian semi-rigid motorway structure.


Paper 80

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 80, 2019.

Analysis of shear contact between wrapped layout of fibre concrete and reinforced concrete M. VAVRUŠ, P. KOTEŠ Faculty of Civil Engineering, University of Zilina, Slovakia

Keywords: fibre concrete, shear contact, shear resistance Concrete structures that are influenced by degradation, overloading, thawing and freezing cycles, abrasive damage, corrosion of reinforced bars, should be repaired or strengthened. Each of those mentioned influences lead to decreased load-carrying capacity of the structure or its member. Exceeding load-carrying capacity lead to mechanical damage of members or oversize deformation. Thus a damaged structure stops to fulfill the serviceability limit states (SLS) or ultimate limit states (ULS). A damage member has to be strengthened on the required level of reliability and load-carrying capacity. There are many types and methods of strengthening the column in practice like the encasement of layer reinforced concrete of fibre concrete, prestressing, added rigid steel members, wrapped of the FRP, etc. Strengthening and increasing concrete member load-carrying capacity, especially added by a new layer of concrete, is puts enormous emphasis on the connection (contact zone) of the origin concrete and a new layer. The main folder ensuring shear bonds are cohesion (c) and friction (µ). These parameters are necessary for the calculation of the resistance cross-section. It is possible to increase the member resistance by connection of tensile forces from fibre concrete layer and shear parameters of contact. The fibre concrete has better properties in tensile thus we can remove reinforced bars and accelerate time for placing of concrete layers. But this level of resistance is influenced by the modification of surface of origin material – the reinforced concrete. Nowadays a lot of methods of modification of the surface exist and they provide bigger shear resistance. This paper deals with experimental and numerical analysis of contact between RC column and new fibre concrete layer around column (ring layer) by using the push tests. Three methods of surface modifications are compared like that smooth surface, using indents and notches. The increased load-carrying capacity using layer of fibre concrete in the experimental tests was investigated and the results were compared with the numerical model. The modification of the input parameters of fibre concrete in numerical models was made, and also comparison and evaluation individual types’ modification of the surface were performed.


Paper 81

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 81, 2019.

Improving the failure behavior and reliability of indeterminate FRP-RC flexural elements using steel bars in critical sections A. SAKR, Z. ORBÁN Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: fiber reinforced polymers, moment redistribution, failure control, reliability index, reduction factor Concrete indeterminate flexural members represented by continuous beams reinforced with both FRP and steel bars in a way that allows for moment redistribution at failure are analyzed. The efficiency of introducing steel bars in the critical sections where plastic hinges are likely to form is evaluated in terms of reliability. Monte Carlo simulation and the concept of comparative reliability are both employed. Ultimately, the effect of different design parameters on the strength reduction factor is evaluated and a formula for calculating this factor is proposed.


Paper 82

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 82, 2019.

Assessment of reinforced concrete slab of historical structures by the Yield-line method R. MAHROUSEH, Z. ORBÁN Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: reinforced concrete slab, existing slab, yield-line analysis, elastic FE analysis, structural assessment A reinforced concrete slab is the first member of the structural system that is subjected directly to the external loads and transfers it to the other bearing elements. Therefore, it is very important to reach a comprehensive understanding of its structural behavior in term of designing new slab or in the case of assessing old existing slab to reveal its hidden capacity. The work presented in this paper is to demonstrate and evaluate an approach in the analysis stage of the structural assessment process of existing old RC slabs. It includes a simple flat slab, a slab in the Gergely Csiky Theatre in Kaposvár and the ground floor slab of the Great Market Hall in Budapest. The approach adopted the yield-line method, which has been made automated in LimitState Slab software. The workflow for each case study consists of several steps. Firstly, collecting data needed for the purpose of the study. Loads and load cases are defined according to the current situation and the expected function of slabs. The slabs subject of the study are analyzed using elastic FE analysis and yield-line analysis in order to compare the response results in terms of the flexural bearing capacity. Due to uncertainties in the tests’ results, measurements and boundary conditions in modelling, 10 models have been created in the Csiky Gergely Theatre case study regarding the thickness of the slab, diameter and yield strength of the reinforcement. 4 models have been created in the Great Market Hall case study regarding boundary conditions (fixed, free or simple). The results of the yield-line analysis are in the form of adequacy factor (load factor). Comparing analyzing results between the two type of analysis shows the elastic FE analysis is a conservative method in terms of flexural bearing capacity. Minor modification in the parameters associated with bearing capacity throughout the slab or its the boundary conditions can affect the adequacy factor considerably, while the distribution of the yield lines in the slab is related to the boundary conditions.


Paper 83

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 83, 2019.

Correlation between dynamic and cone penetration test V. JÓZSA Department of Civil Engineering, Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: cone penetration test, dynamic penetration test, DPL, DPM, DPH Cone penetration tests (CPT) are particularly useful to determine several soil parameters and identify the soil behavior type (SBT), but different types of dynamic penetration test (DPL, DPM, DPH) with soil identification can give reliable result of compaction level, compression modulus, internal friction angle, position and effect of ground water table, changing of soil layers too. Thus, additional research was investigated to analyse correlations and possibilities between dynamic penetration test with soil laboratory test results and cone penetration test results.


Informatics


Paper 84

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 84, 2019.

Testing output variables for sensitivity study of nonlinear vibration systems F. HAJDU, GY. MOLNÁRKA Department of Mechatronics and Machine Design, Faculty of Mechanical Engineering, Informatics and Electrical Engineering, Széchenyi István University, Hungary

Keywords: sensitivity analysis, numerical simulation, nonlinear system modeling, vibration In this study the detailed OAT (one-at-a-time) sensitivity analysis of a nonlinear mass-springdamper system is carried out with numerical simulation. The degree of sensitivity was measured with a sensitivity index and based on it sensitivity Fuzzy-sets were established. The sensitivity of a parameter then can be expressed by the membership to the Fuzzy sets. The Sensitivity index can be calculated using a selected output variable or specific system property. In this study the RMS of acceleration, the maximum amplitude of acceleration and the peak frequency were chosen as output variables. The aim of this research is to determine which variable can be used for sensitivity analysis of nonlinear vibration systems the most effectively. In this presentation the methods of sensitivity study are explained first, which is followed by our preliminary research results in the topic. Then our developed method for sensitivity analysis is described in detail, which is followed by simulation results and a comparative study of the selected output variables. The presentation concludes with further research tasks.

Acknowledgments

Supported by the ÚNKP-19-3-III-SZE-11 New National Excellence Program of the Ministry for Innovation and Technology


Paper 85

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 85, 2019.

AI based detection of gas hydrate formation in the field I. BÖLKENY1 , L. CZAP2 1 2

Research Institute of Electronics and Information Technology, University of Miskolc, Hungary Institute of Automation and Infocommunication, University of Miskolc, Hungary

Keywords: gas hydrate, inhibitor, neural network, hydrate detection During the production of natural gas one of the major problems is the formation of hydrate crystals in the pipeline. The forming hydrate crystals can form hydrate plugs in the pipeline. The hydrate plugs lengthen production outages and result in financial losses for the producer, because the removal of the plugs is a time consuming procedure. One of the solutions used to prevent hydrate formation is the injection of modern compositions to the gas flow. The modern compositions help to dehydrate the gas, thus, the size of hydrate crystals does not increase. The substances, used in low concentrations, have to be locally injected, at the gas well sites. Inhibitor dosing depends on the amount of gas hydrate present. In the paper a neural network based predictive detection solution is presented, which uses four factors. The topic covered in this paper is a follow-up to my "AI BASED PREDICTIVE DETECTION SYSTEM" paper published in Pollack Periodica 2018.


Paper 86

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 86, 2019.

Keys and functional dependencies in incomplete databases with limited domains M. ALATTAR1 , A. SALI2 1

Department of Computer Science and Information Theory, Budapest University of Technology and Economics, Hungary 2 Alfréd Rényi Institute of Mathematics, Budapest, Hungary

Keywords: strongly possible world, null values, Armstrong tables, data Imputation, matchings in bipartite graphs Missing data value is an extensive problem in both research and industrial developers. Two general approaches are there to deal with the problem of missing values in databases: either they could be ignored (removed) or imputed (filled in) with new values. In this work, we use the second method. Possible worlds, possible and certain keys, as well as weak and strong functional dependencies, were introduced and studied earlier. In a preceding paper, we introduced the intermediate concept of strongly possible worlds that are obtained by imputing values already existing in the table. This result in strongly possible keys and strongly possible functional dependencies. We give a polynomial algorithm to verify a single spKey, and show that in general it is NP-complete to verify an arbitrary collection of spKeys. We give a graph-theoretical characterization of the validity of a given spFD X -sp-> Y. We analyze which weak/strong functional dependency axioms remain sound for strongly possible functional dependencies and give appropriate modifications of the not sound ones.


Paper 87

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 87, 2019.

Extending P4 language with asynchronous compression A. GERELTSETSEG1 , M. TEJFEL2 3in Research Group, Martonvásár, Programming languages and compilers, Eötvös Loránd University, Hungary

Keywords: deeply programmable network, data plane programmability, P4 language, DPDK Poll Mode Driver, DPDK library Software-defined networking (SDN) is emerged to address the drawbacks of traditional IP networks, such as decentralized management, monitoring, and inflexibility (hardware and software components of the network are proprietary). The SDN decouples the control plane (collect control information to forward data) from the forwarding hardware. Therefore, the control plane is programmed in the centralized servers which enables the use of cloud and virtualization technology in the network. Moreover, the flexible network requires not only programmability in the control plane for network operations and management but also deeper programmability for data-plane (data forwarding plane) for processing data to deal with new protocols. Network with data plane programmability is called a deeply programmable network which is an extension of SDN. P4 is a domain-specific programing language for enabling programmability in the data plane of network targets such as hardware or software switch, network interface card, router, or network appliance. In addition, P4 is an under development, open-source project and get more community support than other similar languages. We can contribute to developing this programming language by providing additional functionality. According to our previous study, one possible solution is that we can add some functionalities of the Intel® DPDK fast packet processing framework into P4. The Intel® DPDK framework provides a set of software libraries including functionalities such as compression, and encryption and network interface controller drivers for fast packet processing in data plane applications. The compression and encryption functionalities are implemented in an asynchronous way. The P4 language manages the multiple targets by expanding itself via so-called extern objects or extern functions defined by an architecture model. The externs have to be implemented by the given target which can be either software or hardware. Synchronous implementation of extern functions is the default solution and it can be integrated well into the P4 main architecture. However, in the case of several functions (e.g. encryption and compression), synchronous implementations are very expensive because the nature of these functions is asynchronous. In addition, it is unadaptable in a real application due to performance. Our current research, introduced in this paper, try to define a method for integrating asynchronous functionalities into P4 in an effective way. The research uses V1model architecture in P4, T4P4S compiler and DPDK compression function as a case study.

Acknowledgments The research has been supported by the European Union, co-financed by the European Social Fund (EFOP-3.6.2-16-2017-00013, Thematic Fundamental Research Collaborations Grounding Innovation in Informatics and Infocommunications). 1 2

Orcid ID: 0000-0002-1594-8158 Orcid ID: 0000-0001-8982-1398


Paper 88

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 88, 2019.

Modelling of agent needs using artificial intelligence and Maslov’s hierarchy of needs A. BALAN1 , K. JEDRASIAK2 , A. GALUSZKA3 , C. LUNGOCI1 , E. PROBIERZ3 1

Transilvania University of Brasov, Romania WSB University, Dabrowa Gornicza, Poland 3 Silesian University of Technology, Gliwice, Poland 2

Keywords: artificial intelligence, Sheep World, agent needs Artificial Intelligence is a study of design of intelligent agents. An intelligent agent is a system that acts intelligently on its environment. There are various problems which are being investigated by Artificial Intelligence, like knowledge, reasoning, learning and planning. This study is a part of a project that aims to implement semi-realistic human-like needs in a virtual agent within a 3D environment. The simulation – herein “Sheep World” – was crafted to allow for easy implementation of a series of basic needs in a virtual agent. The simulation features: a dynamic world (seasons, weather etc.), an intuitive interface, agents that respond to internal and external stimuli. Sheep World could be referred to as an A.I. System that consists of an agent and its environment. The agent uses virtual sensors to perceive and actuators to interact with the world around them. The presented simulation was aimed at creating a virtual world with psychosomatic elements that occur in the real world. For this purpose, the pyramid of the hierarchy of Maslow was used, which made it possible to organize the rank of needs and precisely define the sets to be created. The implementation of basic needs was the first and necessary element for the development of simulation of the real world. Taking into account Gauss’ decomposition for the physiological needs felt, it was possible to obtain individual differences allowing a more accurate simulation of the environment. Additionally, basic family ties were implemented, at the elementary level of physiological needs and herd teaching, and individual preferences of avatars also. In addition to the basic physiological needs, fear was implemented, which was felt by the avatars when a specific stimulus appeared. The occurrence of a specific stimulus triggered a program to get to a safe place as soon as possible and to save life. Avatars meeting their needs sought to achieve a satisfactory level and to avoid death, in case of critical levels of failure to meet their needs, a specific avatar died. In the study the following scenario was implemented in the Unity environment. The environment of Sheep World is situated within the bounds of a picturesque island that is large enough to allow multiple agents to wonder and explore it at the same time. Resources required to satisfy the needs of an agent – such as: water (infinite), food (finite, takes time to “regrow”) – are placed within the realm. As of right now, seasons and weather only affect the appearance of the world – grass turns green during warm seasons, leaves fall during cold seasons and so on. They do not affect the behavior of the agents or the resources in any way. The agent of Sheep World is, in fact, a sheep. A sheep was considered as it has pretty much the same basic needs as humans do. In the current implementation of Sheep World only the first three levels, as depicted by Maslow’s Hierarchy of Needs, are present: the “Deficiency needs” (sleep, thirst, hunger, libido, toilet). Sheep will wander around and try to satisfy their


most “urgent” need. They will remember the locations of resources they have previously found – but will avoid these locations if the resource is depleted. Sheep will also try to reproduce. When all their needs are at equilibrium, they will search for a mate that is of different gender and is also looking for a partner and copulate. If successful, this results in an offspring. Lambs will remember their parents and follow them around. In turn, parents will remember their lambs and try to cater to their needs. To add to the complexity, a wolf was added to act as a natural predator to the agent. The wolf will try to hunt the sheep down and eat them. The sheep will “feel” fear and try to run away. The model of agents behavior takes the form of discrete in time cause-effect formulas. This implementation enables to observe agents population behavior by changing set of parameters values connected with needs model. It has also helped to further understand the inner workings of the A.I. world and has proven to be of invaluable importance to future developments.

Acknowledgments This work has been partially supported by Institute of Automatic Control BK Grant 02/010/BK18/0102 (BK/200/Rau1/2018) in the year 2019.


Paper 89

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 89, 2019.

Search space reduction in the progressive algorithm for automated employee scheduling B. PINTÉR, B.A. KŐVÁRI Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Hungary

Keywords: employee scheduling, progressive algorithm, Hungarian method, search space reduction, operational research The problem of automated employee scheduling consists of finding the optimal schedule based on a number of requirements, e.g. satisfying labour laws, optimising for wage costs or maintaining equal workload among employees. As the duration of the planning horizon becomes longer, and the number of employees and tasks increase, so does the search space grows but, by orders of magnitude. Many algorithms have been presented in the literature to solve the problem, but none of them could provide a solution without compromise so far. One approach to automated employee scheduling is a progressive algorithm that iterates through the planning horizon and assigns the employees to tasks for each day. The advantage of this algorithm is that the execution time increases less dramatically, compared to other approaches, because, that the search space is reduced significantly by its forward-only scheduling nature. On the other hand, the optimal schedule can be potentially excluded by the reduction. In this presentation we look into the details of the scheduling search space reduction and introduce various techniques to improve the quality of the reducing method. Finally, we compare our results with other algorithms on the Scheduling Benchmarks data set.

Acknowledgments Project no. FIEK_16-1-2016-0007 has been implemented with the support provided from the National Research, Development and Innovation Fund of Hungary, financed under the Centre for Higher Education and Industrial Cooperation - Research infrastructure development (FIEK_16) funding scheme.


Paper 90

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 90, 2019.

Application of software defined networks in vehicular ad-hoc networks S.I. BOUCETTA, Z.C. JOHANYÁK Faculty of Engineering and Information Technology, John von Neumann University, Kecskemét, Hungary Institute of Information Science, University of Miskolc, Miskolc, Hungary

Keywords: SDN, ITS, VANET, V2V, V2I, data plan, control plan The goal of Intelligent Transportation System (ITS) is to create an intelligent and immediate user space integrated to the road environment which aims to improve the safety, efficiency and conviviality of transports. Traveling at high speeds generate a high rate of connection and disconnection in the network that makes impossible to establish an infrastructural network between the vehicles and in addition to that, these latter are committed to follow a precise route during their movements. This issue resulted in the birth of Vehicular Ad-hoc Networks (VANETs) that allow communication among vehicles (V2V) and between vehicles and fixed infrastructure (V2I) being able to support a wide range of services and applications. However, there exist technical challenges in VANET communication mainly related to the nature and characteristics of the vehicular environment. To overcome these challenges a promising option would be the use of Software Defined Networking (SDN) that could result in the improvement of dynamicity and manageability, as well as in a cost-effective, and adaptable architecture. SDN separates network control and forwarding functions, enabling network control to be directly programmable and the underlying infrastructure to be abstracted from applications and network services. The flexibility of SDN makes it an approach that could be used to satisfy the requirements of VANET scenarios and to bring the programmability and flexibility to this distributed wireless network, simplifying its management and enabling new V2V and V2I services.

Acknowledgments This research is supported by EFOP-3.6.1-16-2016-00006 “The development and enhancement of the research potential at John von Neumann University” project. The Project is supported by the Hungarian Government and co-financed by the European Social Fund.


Paper 91

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 91, 2019.

Traffic load simulation for different sensor placements L. HAJDU1,2,3 , D. BALÁZS2,3 , M. KRÉSZ1,2,3 1

Innorenew CoE, Slovenia University of Szeged, Hungary 3 University of Primorska, Slovenia 2

Keywords: wireless sensor network, simulation framework, load minimization The relevance of IoT and sensors is becoming increasingly important in real world applications, as the information they provide can be analyzed and used in several areas. For this reason, it can be extremely important to deploy these networks in an efficient way, especially in the wireless case, where our sensors need battery power to collect and transmit their data. Battery usage depends on the number of data measurements and transmissions done by a sensor and minimizing the maximum load in the network guarantees that the deployed network structure remains intact for the longest possible time. In this presentation, we introduce a framework that is able to simulate the transmission of data on sensor networks, from their origin to the gateway that transmits them to the cloud. This framework measures the load of each sensor node in the network and aims to distribute data transmissions among them as evenly as possible. We will present simulations for several sensor placements and analyze the resulting data.

Acknowledgments The authors gratefully acknowledge the European Commission for funding the InnoRenew CoE project (Grant Agreement #739574) under the Horizon2020 Widespread-Teaming program and the Republic of Slovenia (Investment funding of the Republic of Slovenia and the European Union of the European regional Development Fund). László Hajdu is grateful for the support of the EU-funded Hungarian grant EFOP-3.6.2-16-2017-00015.


©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 92, 2019.

Paper 92

Improving optimization using adaptive algorithms L. KOTA, K. JÁRMAI University of Miskolc, Hungary

Keywords: heuristic optimization, adaptive optimization, Firefly algorithm In our research and industrial projects, we often meet severe optimization problems, where there are a lot of variables, a lot of constraints and they are nonlinear and mostly discrete problems, where the running time can be calculated sometimes in weeks with the usual optimization methods on an average computer. In most cases in the logistics industry, the most substantial constraint is the time. The optimizations are running on a usual office configuration, and the company accepts the suboptimal solution what the optimization method gives within the appropriate time limit. That is, why adaptivity is needed. The adaptivity of the optimization technique includes parameter fine-tuning. In this way, the most sensitive setting can be found. In this paper, we will investigate some supplementary adaptive methods on logistics problems, to increase the effectivity, improve the solution in a strict time condition. The problem we wanted to optimize is a supply chain optimization problem based on the olive oil production by the company Taris in Turkey. The whole problem cannot be described within the framework of this paper, so we present the core function needed to be optimized here. The primary objective function is the profit maximization, as in many other cases. In our research, we often use swarm methods like the Particle Swarm Optimization (PSO) and the Firefly Algorithm, both are common and widely used to solve a wide range of problems. However, we did not use it on this number of variables until now. The firefly algorithm is working well with various test functions, a lot of general problems, but the question is: how will it perform at problems, where the variable number is large? Another important parameter of the algorithm is the number of fireflies, which is constant in common algorithms. The main idea was to improve the search power of the algorithm when the convergence was starting to flatten. So, we decided to use a simple adaptive method to increase the firefly number. If there is no increase in the global optimum, then the algorithm adds new random initialized fireflies to the state space.

Figure 92.1: Convergences without and with adaptivity


Paper 93

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 93, 2019.

Software development for managing the student attendance lists M. DANUT, C. LUNGOCI, E. HELEREA Transilvania University of Brasov, Romania

Keywords: software development, database, attendance lists During the education process, the student’s presence to different scholar activities must be managed by the teachers. A lot of time is consumed everyday for filling out the attendance lists. Also, teachers need to carry a lot of papers around and make sure they will not lose them. Thus, it is necessary to develop applications for efficient record of the attendance of students to facilitate the work of the teacher. These applications should be easily available from any device and at any time. The objective of this project is to create a database and to develop a web application to support the university teaching staff in order to manage the presence of students at the courses. The database used is the professional MySQL, in which the authors created tables, with information about the students, suitable for the teachers. The application is structured to follow the actions: a Login Feature – in which the teacher uses his/her credentials to gain access to the database; a Main Menu – that displays a three level drop down navigation bar where the faculty, specialization and subject can be chosen; a Database Display – in it all data can be seen by choosing the group and the subject in the menu; a Modifying Data - The app allows the user to modify the current week and input or modify the existing data. The programming languages used in developing the application are: HTML / CSS for the static web page; MySQL – the database; PHP, Javascript and its libraries – for a dynamic webpage, writing the scripts necessary to manage the database and to make different actions. The main advantage of the application is the ease of installation and the accessibility of it since it is cross platform and the UI can be scaled to the screen size and aspect ratio.


Paper 94

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 94, 2019.

Obstacles of integer programming in shift scheduling M.L. MOLNAR, B.A. KOVARI Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Hungary

Keywords: employee scheduling, integer programming Employee scheduling by hand is a tedious and difficult task due to a wide variety of reasons. The problem is proven to be NP-hard thus automated employee scheduling is still a researched subject. Efficiently automating it could help employers and employees alike. Employees will have a more exact schedule with less inefficient time in their days and employers could avoid potential problems in the holiday seasons and most importantly lower the overall cost of their workforce. Both sides will also benefit from the fact that labour laws regarding the work schedule would also be handled. Common approaches to the employee scheduling problem include various kinds of Integer Programming (IP) techniques. This family of approaches uses linear equations to describe constraints and an objective function to optimise for and can find the optimal solution. The biggest issue with the IP methods is the fact that their complexity is also NP-hard. However, the ever-improving technology can offer ways to tackle complicated constraints. There are multiple highly effective IP solvers e.g. Gurobi, OR-Tools etc. This presentation explains the obstacles that IP solutions face and shows the improvements in performance that can occur by removing problematic constraints from the IP method. One of the most complicated constraint is forcing out a certain number of weekends a certain employee can work. By adding preliminary assignments this problem could be trivialized. Also, the minimum and the maximum number of sequential workdays creates major overhead to the number of constraints and variables too. The results are based and compared to a publicly available data set built for research purposes, called the Scheduling Benchmarks. By adding preliminary assignments, the constraint regarding the number of weekends employee can work would not be an issue anymore. Further approaches will be mentioned in this presentation. The IP approaches have room for improvements especially with preliminary work scheduling for obvious cases could reduce the number of constraints, and the complexity of constraints in that part of the scheduling horizon. Also, hybrid approaches could do the pre-processing for problematic constraints like the constraint regarding the number of weekends an employee can work on.

Acknowledgments Project no. FIEK_16-1-2016-0007 has been implemented with the support provided from the National Research, Development and Innovation Fund of Hungary, financed under the Centre for Higher Education and Industrial Cooperation - Research infrastructure development (FIEK_16) funding scheme.


Paper 95

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 95, 2019.

Optimal office building layout generation with backtracking to support energy design synthesis P. NOVÁK1 , I. KISTELEGDI2 , ZS. ERCSEY1 1

Faculty of Engineering and Information Technology, University of Pécs, Hungary Faculty of Engineering and Information Technology, János Szentágothai Research Centre, University of Pécs, Hungary 2

Keywords: office building, energy design, geometry generation, backtrack algorithm The Energy Design Synthesis method considers both energy and comfort related issues when designing an optimal building. As the first step of the method, it is necessary to construct an underlying set of rules that express the necessary and sufficient combinatorial properties to which potential optimal cases, and in general any feasible case should confirm. These rules refer to the basic units and basic groups; office floor space and atrium space; potential ratios and some specific parameters concerning the layout etc. Based on the basic units and basic groups, first, all feasible combinations are generated that correspond to the rules. Please note that a large number of groups are available. Then, as a second level hierarchy, all possible layout combinations are generated that refer to the internal office – atrium ratio within the groups. The initial state considers a basic group, which is extended into every possible direction with every possible combination. All identical cases are dropped during the generation together with those violating the rules. The resulting combinations will serve as the initial state of the next iteration. The iteration is repeated until the given office building size is reached. The final layout is generated similarly, starting from an initial layout combination, the construction is step by step increased conforming the set of rules.


Paper 96

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 96, 2019.

New scheme for enhanced energy efficiency consumption based on LPWAN H. RAJAB, T. CINKLER Budapest University of Technology and Economics, Hungary

Keywords: IoT, energy consumption, LPWAN, LoRa, LoRaWAN Recently, one of the most common needs of peoples are to be connected to the Internet anytime, anywhere, anyhow. The Internet of Things (IoT) is a materialized paradigm in which everyday objects are implemented with Internet connectivity, enabling them to collect and interchange information. The world economy is overgrowing rapidly, and global energy demands are predicted to a radical increase in the future. Energy expected to be more expensive, in turn, affecting economic evolution. By empowering large-scale energy-efficient Internetof-Things (IoT) connectivity is a fundamental step towards the fulfillment of the networked society. Low-Power Wide-Area Networks (LPWAN) attempt to be the solution to this problem. LoRaWAN provides radio coverage over long distances by enhancing the reach of the base stations via adapting transmission rates, transmission power, modulation, duty cycles, etc. This paper will propose an energy consumption model based on LoRa and LoRaWAN. Schemes are proposed and evaluated through theoretical analysis and simulations. This model will be used to evaluate different LoRaWAN modes to select the most suitable sensor node design to achieve its energy autonomy.


Paper 97

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 97, 2019.

Distributed machine learning using data parallelism on mobile platform M. SZABÓ Faculty of Informatics, University of Debrecen, Hungary

Keywords: machine learning, distribution, mobile, data parallelism, server, client, web service, big data There are many solutions to handle big data and most of them use some kind of parallelism. The easiest way that most of our software implement is data parallelism, because we only have to split the data into smaller pieces using the chosen rules. By default, a model will be trained on each part of the original dataset and then these models will be combined. This originally happens on a server or in a cluster environment. By 2019 some mobile processors have enough computing capacity and memory to train a model on it. There are many projects focusing on utilization of mobile devices in different ways. Some are building mobile clusters to mine cryptocurrency; some are trying to create desktop experience with it. The present work focuses on using mobile devices’ computing capacity for distributed machine learning purposes. In the first part of the presentation, the synchronization problem and the evolution of this project will be shown. The second part will include the architecture of the created software and the method how data parallelism works with mobile platform. The last part will contain information about the performance of the system and the results of measurements.

Acknowledgments This work was supported by the construction EFOP-3.6.3-VEKOP-16. The project has been supported by the European Union, co-financed by the European Social Fund.


Paper 98

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 98, 2019.

The relevance of preprocessing approaches in DTW based online signature verification C.L. SZÜCS, B. KÖVÁRI Department of Automation and Applied Informatics, Budapest University of Technology and Economics, Hungary

Keywords: online signature verification, DTW, preprocessing Handwritten signature is one of the most widely used biometrics, thus signature verification is very important. The new technologies enable the automatization of the whole verification process. The goal is to build a signature verification system, which can decide about the origin of an unknown signature as precisely as possible and within reasonable time. In online signature verification, the signatures are acquired with the help of special electronic devices such as pressure sensitive pen or digital tablets. This form of the signatures enables not only the analysis of spatial information, but also extra dynamic information. A signature verification system is very complex, it has more phases and a lot of different applicable algorithms. One of these phases can be preprocessing. Prepocessing may be needed, because of the noise and distortion, which can occur during capturing the signatures. The goal of the prepocessing steps is to eliminate the noise and any other distortion and improve the verification results by this. This work deals with DTW based online signature verification and focuses on different preprocessing approaches such as scaling, translation etc. and on their effects on the verification results. The comprehensive study of these preprocessing methods may help to design effective verification systems.

Acknowledgments Project no. FIEK_16-1-2016-0007 has been implemented with the support provided from the National Research, Development and Innovation Fund of Hungary, financed under the Centre for Higher Education and Industrial Cooperation - Research infrastructure development (FIEK_16) funding scheme.


Paper 99

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 99, 2019.

The first step to axiom-based property verification of P4 programs G. TÓTH, M. TEJFEL Faculty of Informatics, Eötvös Loránd University, Hungary

Keywords: P4 language, verification, property verification, operational semantics P4 is a domain-specific programming language to develop network packet processing. It is hard to test this kind of programs, therefore we need to find a solution to check and formally verify them. This paper introduces an approach to an axiom-based program property verification. It is based on a freely available operational semantics of the language. This type of semantics is in a low-level of abstraction, therefore the proof of the program properties may be too difficult and costly. We would like to verify the programs in a higher level of abstraction with introduced axioms, which are based on the operational semantics. Using these axioms the proofs can be easier and more general. The paper illustrates this approach with three example axioms.

Acknowledgments The project has been supported by the European Union, co-financed by the European Social Fund. (EFOP-3.6.3-VEKOP-16-2017-00002).


Paper 100

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 100, 2019.

Cryptography schemes for improving the security in large databases Y. YAN Faculty of Informatics, ELTE, Hungary

Keywords: big data, security, cryptography Big data has become a research hotspot in both academia and industry areas. It is a revolution of transforming people’s ways of thinking, habits of working even the structure of society. However, big data is facing with many risks in the processes of collection, storage and use. Security and privacy is regarded as the most serious issue. A lot of practical cases show that after large quantities of harmless data is collected, it will reveal personal privacy. In order to improve the security of big data, the following cryptographic tools will be used for the future work as two main building blocks in secure distributed system: 1. Secret sharing: it is a cryptographic method for distributing a secret to multi-parties, each of whom only takes a part of the secret. With this technique, we can build a secure, privacypreserving system during data sharing and computation. It can solve the problem of ensuring the data is secured in sharing and computation. An interesting special case is a k-threshold case, which can be useful in k-anonymity. 2. Attribute-based cryptography: it is an encryption method in which the private key is used to decrypt data dependent on users’ attributes. There are mainly two types of encryption: key-policy attribute-based and ciphertext-policy attribute-based. It avoids the disadvantage of traditional public-key encryption of bonding the identity with the public key. This cryptographic technology provides a much more flexible way to encrypt and decrypt. This novel tool is a possible solution for sophisticated authentication models, like behavior or environment based authentication.


Paper 101

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 101, 2019.

Alternative methods for controlling drones P. MÜLLER, Á. SCHIFFER, Z. SÁRI, B. TUKORA, I. JANCSKÁRNÉ ANWEILER, G. VÁRADY Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: drone, HMI system, gestures Several quadrotor drone related projects are running at the Department of Information Technology at the Faculty of Engineering and Information Technology, University of Pécs, Hungary. Drones are the actually the most popular type of flying robots because they are useful for different tasks. A drone requires a control unit, which sends commands using typically some kind of wireless technology. In many cases, the high-level controlling commands is decomposed into a sequence of low-level commands. The high level commands should be deduced from the human machine interface, which can be an eye tracking sensor, Kinect motion sensor, Leap Motion hand and hand-gesture detector, etc.. These information sources provide pretty acceptable input, but in order to use them in a real time control loop, further signal processing is required. In this recent work, we investigate the effectiveness, reliability and applicability of several HMI inputs in the context of real time control of a quadcopter drone.

Acknowledgments The project has been supported by the European Union, co-financed by the European Social Fund with the code EFOP-3.6.1.-16-2016-00004 “Comprehensive Development for Implementing Smart Specialization Strategies” at the University of Pécs, Smart Cities, Drone research group.


Paper 102

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 102, 2019.

Stability and movement analysis with exoskeleton P. MÜLLER, Á. SCHIFFER Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: gait analysis, exoskeleton, visual-based analysis In modern day medical practice, the application of engineering solutions is increasing everyday such as using intelligent devices and sensors, or even elements of robotics, just like the exoskeleton, which is an external frame worn to support the body. The application of an exoskeleton can be a significant help for disabled or severely injured persons, in rehabilitation, management of every day tasks, and generally achieving a better quality of life. The learning of the efficient use of the exoskeleton is not trivial and involves lots of practice, “trial and error”. In this paper we carry out a video-based investigation of the motion in order to have a better understanding of the patients’ interactions with the exoskeleton device. For the analysis, we developed a measurement system, which is able to capture the motion of the body and store the body joints coordinates in time. This analysis enables us to properly investigate the trajectory of the joint of the human body. The system shows the improvement of the patient and also makes it easier to find the problematic aspects of this learning curves.


Paper 103

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 103, 2019.

Design and implementation of a machine-learning based image classification system S. TAKÁCS, Z. SÁRI, I. JANCSKÁRNÉ ANWEILER, G. VÁRADY, Á. SCHIFFER, B. TUKORA, P. MÜLLER Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: image processing, machine learning Nowadays there are vast amount of data (and meta-data), from which – with the appropriate data processing methods – lots of useful information can be obtained. One of the most prevalent forms of high density information source is the imagery information, and the state of the art methods of processing almost always involve some form of artificial intelligence and machine learning, which – as a new paradigm in information technology – has a major impact in both scientific and industrial computation and data processing. This recent study focuses on the design principles and implementation of a complex image processing system, which is designed for not only processing raw data contained in the image, but also taking into account the meta-data corresponding to the geolocation where the actual images were shot. This project is primarily addressed to process aerial images of vegetation (photos possibly taken by drones) in order to find and label certain important species, and build the joint database of the density of species of interest over the surface area investigated.

Acknowledgments The project has been supported by the European Union, co-financed by the European Social Fund with the code EFOP-3.6.1.-16-2016-00004 “Comprehensive Development for Implementing Smart Specialization Strategies” at the University of Pécs, Smart Cities, Drone research group.


Paper 104

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 104, 2019.

Monocular method of depth estimation G. VÁRADY, T. STORCZ, ZS. ERCSEY Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: depth estimation, camera based machine vision Depth estimation and 3D vision is widely used in machine vision applications of nowadays. 3D vision applications aim mainly at a more precise form detection of objects. Depth estimation applications try to use some depth data parallel to the camera 2D data to help the 2D algorithms. A good example for that is segmentation. A typical example for that is leaf segmentation, where similar, overlapping objects have to be separated. With some depth data, given areas can be filtered out of the 2D camera image and easier and fast 2D segmentation algorithms can be applied. High precision depth sensing needs active methods and instrumentation. LIDAR-like systems or systems with structured light need emitting devices and special sensors. Their range is limited, high data rates are present which generates a lot of data. That can be also a problem not resolvable in all situations. Not all applications need high resolution. For collision avoidance and navigation, low resolution depth data could also be enough. Pure camera based depth estimation can be made with stereo vision, but also monocular, with a single camera. In this work, a single camera based method is investigated and the ongoing work and results will be presented.

Acknowledgments This work was supported by the GINOP 2.3.2-15-2016-00022 grant. The project has been supported by the European Union, co-financed the European Regional Development Fund.


Paper 105

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 105, 2019.

Image parameters of drone cameras G. VÁRADY, P. MÜLLER, Á. SCHIFFER, Z. SÁRI, B. TUKORA, I. JANCSKÁRNÉ ANWEILER Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: drones, color representation Drones are widely used in many applications. There are many types with different parameters and price. Even the cheapest drones are equipped with cameras. These cameras are mostly fully automatic and provide less information about their recording parameters. Our research group works with low-end and high-end drones, with built in cameras. Since many application tasks need color information, it is important to know the color representation of the used camera systems. This work is about comparing the used camera system parameters, especially the color representation parameters and possible solutions to be able to work with more accurate color information in images and streaming videos done with our drones. A novel system is also introduced, with which color information could be corrected during varying record parameters.

Acknowledgments The project has been supported by the European Union, co-financed by the European Social Fund with the code EFOP-3.6.1.-16-2016-00004 “Comprehensive Development for Implementing Smart Specialization Strategies” at the University of Pécs, Smart Cities, Drone research group


Paper 106

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 106, 2019.

Numerical solution of elliptic and parabolic PDEs with the application of discrete operators on graphs Z. VÍZVÁRI1 , M. KLINCSIK1 , Z. SÁRI1 , P. ODRY2 1 2

Faculty of Engineering and Information Technology, University of Pécs, Hungary Institute of Information Technology, University of Dunaújváros, Hungary

Keywords: discrete calculus, elliptic and parabolic problems, differential operators on graphs, lumped elements In this research, we present a novel method for obtaining the numerical solution of parabolic and elliptic type partial differential equations based on discrete calculus approach. Our proposed solution method is interpreted in the context of handling the underlying physics and the material properties on a graph, applying discrete operators. It turns out, that the properties of discrete operators mimic those of their continuous counterparts retaining all of the advantageous properties, such as orthogonality, conservation laws, and minimum-maximum principle. This approach can significantly simplify the numerical solution of the equation system obtained from discretization resulting from the graph-based representation and the application of appropriate methods of discrete calculus. The applicability and efficiency of the method are demonstrated through a set of case studies corresponding to parabolic and elliptic model problems, where the solutions are validated by reference results obtained using a well-known, widely accepted commercial FEM solver.

Acknowledgments The research was funded under the project “Sustainable Raw Material Management Thematic Network - RING 2017” EFOP-3.6.2-16-2017-00010 within the Programme SZECHENYI 2020, supported by the European Union, co-financed by the European Social Fund.


Other engineering fields


Paper 107

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 107, 2019.

Linear and nonlinear dynamical analyses of a crane model M. HMOUMEN, T. SZABÓ Faculty of Mechanical Engineering and Informatics, University of Miskolc, Hungary

Keywords: overhead crane, nonlinear vibrations, modeling, FEM Nowadays, well planned logistics and rapid cargo transportation represent an important role in the improvement of industry and trade. In order to minimize the time consumed by these operations, utilization of automated apparatus, investigation of cranes are needed. The payload of overhead cranes usually suspended on steel ropes or chains. Generally very simple mathematical pendulum models of the cranes are adapted in papers. The chain/rope mass and its independent degree of freedoms (DOFs) are neglected. Though it is advantageous to use a simple model for an observer in anti-sway control however it may leads to high error in state space variables. In this paper nonlinear and linear overhead crane (see Figure 107.1) dynamical models will be formulated and analyzed using the finite element method (FEM). In addition to the payload, the inertia and independent DOFs of the suspending chains are also considered. The goal of this paper to show that how accurate are the linear versions comparing to nonlinear counterparts. A nonlinear and a linear FEM program has been developed under the Scilab software. A comparison will be demonstrated for a simple crane motion problem.

Figure 107.1: Overhead lab crane model: 1. Trolley 2. Chains 3. Payload

Acknowledgments The paper was carried out as part of the EFOP-3.6.1-16-2016-00011 “Younger and Renewing University – Innovative Knowledge City – institutional development of the University of Miskolc aiming at intelligent specialization” project implemented in the framework of the Szechenyi 2020 program. The realization of this project is supported by the European Union, co-financed by the European Social Fund.


Paper 108

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 108, 2019.

Relationship between number of modern lamps and level of radiated and conducted noise emissions R. ISTÓK Power System Department, Kálmán Kandó Faculty of Electrical Engineering, Óbuda University, Hungary

Keywords: conducted noise emission, radiated noise emission, impedance, power factor, modern lamps Nowadays the measurements required by standards in case of lighting lamps specify that the measurements of noise emission in low and high frequencies are done only for a lamp. In real life more than one lamp are present in power network systems. It is well known that in the case of high frequencies it is important the impedances of network, which should modify the frequency and level of noise signals. The variation of number of lamps determines a variation of impedance of power supply network. This is the reason why for high frequency measurements an artificial network is required which ensure a 50ohm impedance for all measurement frequency range. The constant impedance provided by artificial network ensure the repeatability of the measurements too. The modern lamps are capacitance loads and increasing the number of lamps determine a capacitance increasing of power supply line. This information is very important because increasing of capacitance on power supply line influence the power factor, the reactive power consumption and modify the noise emission in low frequency. The paper analyzes the topic of low and high frequencies noise emission of networks with different numbers of modern lamps to give answers for questions regarding the influence of number of lamps on the level of noise emission, on frequency of noise signals, relation between lamps type and amount of noise emission. The result of measurements is useful during the planning of filter systems of power supply network in a building for example.

Figure 108.1: Level of radiated noise emission from LED lamps as a function of number of lamps


Paper 109

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 109, 2019.

Enhance thermal efficiency of parabolic trough collector using Tungsten / Syltherm 800 nanofluid O. AL-ORAN, F. LEZSOVITS Department of Energy Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Hungary

Keywords: parabolic trough collector, solar energy, nanofluid, thermal efficiency, enhancement Development of thermal efficiency of the concentrated solar energy especially parabolic trough collector using various nanofluids types has taken high interest in recent years. In this paper enhancement thermal performance inside the heating collecting element of trough collector type LS-2 was simulated and improved using nanofluid consist of WO3 inserting in Syltherm 800. Nanofluid effect was examined by solving the energy balance equation using MATLAB symbolic code to cover wide range concentration volume (1-5%) and inlet temperatures ranging from (350-650K) for the turbulent flow. The thermal efficiency and outlet temperature were improved based on the results, and a notable increase was obtained when volume concentration had been increased compared to base fluid.


Paper 110

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 110, 2019.

Combined electro-thermal model of a PV system A.K. ABDULRAZZAQ, G. BOGNÁR, B. PLESZ Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Hungary

Keywords: electro-thermal model, solar cells, I-V characteristics The higher the temperature of a photovoltaic (PV) module, the lower is the efficiency. Hence, this concept act as a closed-loop relation. Besides the effect of the temperature on the efficiency, high temperature directly affects the PV module reliability and the long-term performance. Therefore, it is evident that accurate power prediction and performance monitoring are more effective when we combine both electrical and thermal sub-models. This paper presents a combined electro-thermal model to serve the aim of accurate output power prediction of PV systems and to ensure grid stability, based on the concept of the energy balance which is defined as the difference between the incident energy and the electrically generated energy. The electric sub-module is implemented by considering the single diode model (SDM) to represent the physical behaviour of the solar module. The SDM equation is fitted to the measured I-V curves under different environmental conditions. The implicit and non-linear nature of the SDM equation with five unknowns requires a computational intelligence method for extracting the values of these parameters. The particle swarm optimisation (PSO) algorithm has been used for this purpose. The resulting parameter sets at different environmental conditions will be used to build the electrical sub-model by fitting a 2-dimensional polynomial function corresponding to their related irradiance and temperature. The produced electrical sub-model is able to construct a complete I-V curve at any given solar irradiance and temperature. The thermal sub-model is used to calculate the instantaneous PV module junction temperature and feds it to the electrical sub-model at which the output power is calculated, and complete I-V characteristics is constructed. The heat energy exchanged between the top and the bottom of the PV module and the surrounding media via three mechanisms: conduction, convection and radiation. The heat generation mechanisms are individually evaluated. The core of the thermal sub-model is based on a Cauer RC ladder model to describe the heat flow path from the cell to the ambient through both top and bottom PV module surfaces. The proposed model requires input data such as the incident irradiance and the ambient temperature. For this purpose, we use the Bird’s clear sky model. The model provides accurate power prediction corresponding to different environmental conditions. The proposed combined model is verified using PV modules of different technologies.


Paper 111

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 111, 2019.

Theoretical and numerical comparison study of aluminum foam sandwich structures A. AL-FATLAWI, K. JÁRMAI, G. KOVÁCS Faculty of Mechanical Engineering and Informatics, University of Miskolc, Hungary

Keywords: sandwich panels, foam core, hybrid, minimum weight, optimization Sandwich structured composites are a special class of composite materials with the typical features of low weight, high stiffness and high strength. Sandwich is fabricated by attaching two thin, strong, and stiff skins to a lightweight and relatively thick core. Using a hybrid composite materials approach provides an expanded methodology to combine materials having different properties and costs like combining carbon fibers (high cost and high stiffness) with glass fibers (low cost and less stiffness). Hence, a comparative study is useful for the evaluation of design solutions in terms of different mechanical properties. In this paper, the 4-point bending test is required to obtain the deflection, facing skin stress and core shear stress for the Aluminium foam sandwich panels with hybrid composite material face-sheets numerically by using Finite Element Analysis (Digimat–HC) program. In this study, a methodology of optimization software for sandwich panels with Aluminum foam core and hybrid composite materials face-sheets is presented by using a MATLAB program. The weight of the sandwich panels is the objective function subject to required constraints based on the stiffness, facesheets failure, skin wrinkling and core shear. The design variables are the thickness of the core (tc) and the thickness of the face-sheet (tf). The hybrid sandwich panels considered consisted of thin hybrid composite face-sheets, symmetric with respect to the mid-plane of the sandwich panels. The face-sheets considered consisted of carbon/epoxy and E-glass/epoxy. The layup of the fibers of the face-sheets were limited to some separate sets of plies having orientation angles of 0°, ±45° and 90°.


Paper 112

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 112, 2019.

Prediction and numerical simulation of the residual stresses in pipes with multi-pass welds M.H. ALHAFADHI, G. KRALLICS Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, Hungary

Keywords: numerical simulation, welding pipe, hardness test A computational procedure is presented for analyzing residual stress states in multi-pass welds in pipes. Based on the MARC software, uncoupled thermal-mechanical three-dimensional (3-D) and two-dimensional (2-D) finite element models are developed. The finite element models are employed to evaluate the residual stress fields during welding. Firstly, a 2-D model is developed to validate and compare the simulation result of the hardness test. Secondly, based on the characteristics of residual stress fields, a 3-D model is also developed. The simulated result shows that the 2-D model can be effectively used to simulate the hardness test and predict the welding residual stresses in pipe weld. Using the 2-D model, a large amount of computational time can be saved. Finally, a computational procedure is presented for analyzing residual stress states in multi-pass welds in pipes and study the influence of the phase transformation of the weld zone on the residual stress is clarified by means of numerical simulation.


Paper 113

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 113, 2019.

Reaction kinetic examination of production of aromatic hydrocarbons via thermo-catalytic cracking of biomass and polystyrene A. ZSEMBERI1 , Z.K. SIMÉNFALVI1 , Á.B. PALOTÁS2 1

Institute of Energy Engineering and Chemical Machinery, University of Miskolc, Hungary Institute of Energy and Quality Affairs, Department of Combustion Technology, University of Miskolc, Hungary 2

Keywords: thermo-catalytic cracking, combined material flow, reaction kinetic parameters, mathematical modelling, production of aromatic hydrocarbons The research involved the examination of thermal and thermo-catalytic cracking of biomass (maize stalk) and polystyrene (PS) waste implemented in combined material flow. In catalytic cases always new, not regenerated, HZSM-5 catalyst was used for the measurements. In the experiments, thermal cracking was performed at 410, 430 and 450°C. The goal was to maximise the production of aromatic hydrocarbons in the liquid products. The extent of enrichment of valuable aromatic hydrocarbons in the liquid products produced to the detriment of the coke fraction was confirmed by laboratory measurements. Considering the applied reactor types and procedural technology characteristics, we set up an experimental equipment that is able to improve both the qualitative and quantitative liquid output in the product with the appropriate base material combination. To have a wider-reaching and more profound knowledge of the experimental equipment and processes, we proposed to introduce a new reaction kinetic scheme. We created the dynamic mathematical model of this scheme. It is worth mentioning that PS was converted to a valuable liquid fraction in 79.69 wt% in the presence of HZSM-5 catalyst at 450°C.


Paper 114

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 114, 2019.

Lower bound definition for working time in crew scheduling problem A. TÓTH1 , M. KRÉSZ2,1,3 1

University of Szeged, Hungary InnoRenew CoE, Slovenia 3 University of Primorska, Slovenia 2

Keywords: scheduling In crew scheduling problem there is a set of daily tasks which have to be grouped into shifts such that each shift can be performed by one employee keeping some given rules. This problem arises many fields of real life such as drivers, nurses or call center scheduling. In the literature the evaluation of the optimization methods usually concentrate on the minimization of the number of shifts. This aspect is not realistic in an industrial environment since it results in overloaded shifts leading to extra cost for the companies by overtime payment. A better objective is to minimize the total working time of the shifts. In addition to the compulsory tasks, in crew scheduling a shift can contain many other activities which count as working time as well. Typical examples in driver scheduling are maintenance, passenger service, availability, etc.. The working time of the compulsory activities can not be reduced since they must be fulfilled in any schedule, i.e. driving the trips of the timetable in driver scheduling. Therefore these activities provide a lower bound for the total working time at any optimization algorithm. In this study a method is presented for calculating the lower bound for the working time of a crew scheduling problem which limits the possible reduction of the working time and gives a reliable evaluation of the optimization methods.

Acknowledgments The first author is grateful for the support of the EU-funded Hungarian grant EFOP-3.6.216-2017-00015. The second author gratefully acknowledges the European Commission for funding the InnoRenew CoE project (Grant Agreement #739574) under the Horizon2020 Widespread-Teaming program and the Republic of Slovenia (Investment funding of the Republic of Slovenia and the European Union of the European regional Development Fund).


Paper 115

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 115, 2019.

Building services design focusing on comfort and energy B. CAKÓ, L. LENKOVICS, A. ÓZDI, M. EÖRDÖGHNÉ MIKLÓS Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: comfort theory, thermal comfort, Solar Decathlon Europe In the field of building energetics, by proper design of heating, ventilation and air conditioning systems, as well as by passive systems, considerable energy savings are achievable, but careful attention must be paid to the comfort parameters in the optimisation procedure. At the Solar Decathlon Europe 2019 contest, a mechanical system based on complex solutions has been designed to provide not only efficient operation but also maximum comfort. Lowtemperature surface heating systems greatly reduce the energy required to achieve a neutral heat sensation compared to conventional heating systems. Achieving optimal comfort often entails an increase in energy requirements, but satisfying the required comfort parameters is a prerequisite for creating optimal living conditions. Reducing energy consumption is not only achieved through narrowly defined energy systems investments, developments, but also through the right choice of operating habits, in which various attitudinal measures and smart solutions play a major role. The study presents active and passive solutions for the building at Solar Decathlon Europe 2019 and their impact on comfort parameters and energy use in the house.


Paper 116

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 116, 2019.

Comparison and evaluation of ADAS utilization at roundabouts H. CAO Faculty of Transportation Engineering and Vehicle Engineering, Budapest University of Technology and Economics, Hungary

Keywords: ADAS, driving behaviour, roundabouts Recently, there are quite a lot of researchers focusing on Advanced driver-assistance systems (ADAS) in highway road conditions. However, roundabouts also play an important role on traffic situations and need to be paid close attention. In this work, we will present autonomous vehicle situation analysis and behavior application with ADAS functions at a four-leg roundabout. We manage the autonomous vehicles to apply their tasks mainly in three categories: 1) keep moving in its own lane, 2) lane changing, 3) react to a dangerous traffic situation. The result of this paper will be a foundation for future research work on autonomous vehicle decision making.


Paper 117

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 117, 2019.

Supplier evaluation with artificial intelligence C. SIPOS, J. MENYHÁRT Faculty of Engineering, University of Debrecen, Hungary

Keywords: supplier, purchasing, supply chain, artificial intelligence Nowadays, the choice of suppliers is becoming more and more important. Rapidly developing logistics, purchasing and quality assurance is no longer just a basic process such as cost reduction, turnaround times or monitoring of various measurement and documentation processes. In the case of company policy and strategy, selecting suppliers is a complex task. It is difficult to meet rapidly changing customer needs criteria in the complete supply chain till the supplier. Several new methods and techniques are available to increase the effectiveness of the supplier service level. Industry 4.0 is no longer subject to traditional business analysis in any case, it provides the appropriate information to a supplier evaluation or selection process. Therefore it is necessary to add new tools to communication systems, be it automation, new software solutions or artificial intelligence. In this paper, the authors present a comprehensive picture to outline problems with supplier selection and one possible new method.


Paper 118

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 118, 2019.

Optimization capabilities of DC/DC step down converter with CasADi M. CSIZMADIA, M. KUCZMANN Automation Department, Széchenyi István University, Hungary

Keywords: DC/DC converter, optimization, CasADi This paper deals with the optimization capabilities of a step down (buck) converter. The criteria of technical properties like topology, in/out voltage are the main design considerations. In view of technical properties these circuits can be optimized for efficiency, overall volume or switching frequency. At the same time the good technical properties also do not represent the best cost solution therefore an optimum balancing is required between the technical and financial aspects.


Paper 119

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 119, 2019.

Electromagnetic interference emission simulation of a BLDC motor D. ERDŐSY, T. BODOLAI Research Institute of Electronics and Informatics, University of Miskolc, Hungary

Keywords: EMC, EMI, BLDC motor, electromagnetic simulation According to one of our current research projects, we should improve the electromagnetic compatibility of a BLDC motor. Besides we have the ability to manually measure the electromagnetic field, we are making simulations about it. Beginning from the 3D model of the motor, through the known excitation fields, ending in the driver circuit, we are looking for the source of the radiated electromagnetic field. Due to our plans we should simulate how changes in the mentioned parts can affect the EMC properties so only with simulation we could decide what part(s) should be improved in order to decrease the interference emission of this motor.


Paper 120

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 120, 2019.

Identification and segmentation of geometric shapes from point clouds R. HONTI Department of Surveying, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovak Republic

Keywords: point cloud, plane segmentation, cylinder extraction, automated data processing Today, point clouds are becoming an increasingly common initial digital representation of real-world objects. Since point clouds in most cases represent a huge amount of data, automation of the processing steps is advisable. Segmentation is one of the basic steps in point cloud processing, since most of the manufactured objects are composed of basic primitives like planes, cylinders, spheres etc. The paper brings a short review of the most reliable methods for identification and segmentation of geometric shapes from point clouds. Within the work of the dissertation thesis of the author two effective algorithms were designed and developed. The first one deals with plane segmentation from point clouds. The algorithm developed is a combination of elements of modified RANSAC algorithm and region-based segmentation methods. The second one is developed for automated cylinder segmentation from point cloud data. The algorithm designed can be assigned between model-based segmentation methods and it uses some of the features of the Hough transform. The proposed algorithms have been implemented in a standalone application based on the MATLAB® software. The method have been tested on complex point clouds with different levels of noise and outliers.

Acknowledgments This work was supported by the Slovak Research and Development Agency under the Contract no. APVV-18-0247.


Paper 121

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 121, 2019.

Dynamic simulation control in a cryogenic distillation column V. KÁLLAI1 , G.L. SZEPESI1 , P. MIZSEY2 1 3

Institute of Energy Engineering and Chemical Machinery, University of Miskolc, Hungary Institute of Chemistry, University of Miskolc, Hungary

Keywords: dynamic simulation, rectification column, Unisim Design, controlling Chemical industry has a high demand for ethylene quantity especially with high quality. This paper discusses a dynamic simulation model of an ethane-ethylene high pressure cryogenic rectification column with Unisim Design process simulator software. Distillation is one of the most essential technology in chemical industry, it is important that the operation of the procedure can be modelled not only in steady state mode, but also in a dynamic way. The goal during this study to make simulations with system-controlling and to investigate the moderations’ effect to the column’s behavior.


Paper 122

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 122, 2019.

Experimental study on Pool boiling heat transfer of MgO nanoparticles based water nanofluid from a typical horizontal heated tube M.S. KAMEL1,2 , F. LEZSOVITS2 1

Department of Energy Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Hungary 2 Department of Mechanical Techniques, AL-Nasiriya Technical Institute, Southern Technical University, Iraq

Keywords: Pool boiling, MgO nanoparticles, Nanofluids, PBHTC ratio The aim of this study is to experimentally investigate the nucleate Pool boiling heat transfer performance of magnesium oxide nanoparticles (MgO) based water nanofluid at the atmospheric condition of Budapest (Hungary). Dilute volumetric concentrations within a range (0.001% to 0.01% Vol.) were used to examine the Pool boiling heat transfer performance represented by Pool boiling curve, and Pool boiling heat transfer coefficient PBHTC. The heating element was a horizontal copper heated tube with a typical diameter (22 mm) submerged inside the cubic boiling chamber. Efforts have been made to measure the surface temperatures along the heated tube in order to ensure the proper and accurate heat transfer coefficient calculations in this work. The results indicated that the Pool boiling heat transfer coefficient ratio (PBHTC_nf/ PBHTC_water ) was enhanced for volume fractions (i.e., 0.001%, 0.004%, and 0.007% Vol.) while there was a degradation in this ratio for concentrations (i.e., 0.01%, and 0.04% Vol) compared to water as baseline case.


Paper 123

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 123, 2019.

The role of green roofs in the quality of the house L. LENKOVICS, B. CAKÓ, B. LENKOVICS, M. EÖRDÖGHNÉ MIKLÓS Faculty of Engineering and Information Technology, University of Pécs, Hungary

Keywords: green roofs, heat transfer, solar radiation, water stability, Solar Decathlon Europe The paper introduces the green roofs and their testing methods in terms of measuring heat transfer, solar radiation and water stability. This paper deals with the design and construction of green roofs, introduces the test system at the Faculty of Engineering and Information Technology of the University of Pécs, and introduces the measurement of energy balance and its fluctuating factors in each season. The study introduces the green roof constructed at Solar Decathlon Europe 2019 contest and its role in the energy and water management of the house.


Paper 124

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 124, 2019.

The efficiency of different types of granular activated carbon in pesticide removal M. MARTON, J. ILAVSKÝ, D. BARLOKOVÁ Department of Sanitary and Environmental Engineering, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Slovakia

Keywords: micropollutants, pesticides, adsorption, activated carbon, chromatography Pesticides present a great problem and threat to the environment and human health. They are widely used in agriculture for protecting crops from being damaged. But they can also infiltrate water sources and pollute the sources of drinking water. Due to their complex organic structure they are very persistent in the environment. That is the reason why it is still possible to find banned pesticides in the environment. It is their complex structure that makes them hard to degrade naturally and thus, water needs to be treated before safe using. One of the processes which can remove these pesticides from water is adsorption. Adsorption on granular activated carbon is the topic of this paper since it is already widely used. As for the detection of pesticides, chromatography will be used to determine the concentration of pesticides in the water before and after the adsorption. First, its usage in the batch model reactor will be explored to investigate the best dosage and adsorption time. We will be comparing three types of granular activated carbon based on their adsorption characteristics.


Paper 125

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 125, 2019.

Tensor product transformation based modelling of induction machine Z. NÉMETH, M. KUCZMANN Széchenyi István University, Hungary

Keywords: TP transformation, induction machine, MATLAB, qLPV modelling State-space modelling theory is still a current topic of electrical machines in drive control. Induction machines can be described by a nonlinear model, which leads to a quasi linear parameter varying (qLPV) state-space model. In order to solve the above mentioned highly nonlinear problem, Tensor Product (TP) transformation has been chosen. Big advantages of TP modelling are the short simulation time in MATLAB and a speed controller can be applied easily.


Paper 126

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 126, 2019.

CFD analysis on a direct spring-loaded safety valve to determine flow forces T. PUSZTAI, Z.K. SIMÉNFALVI Department of Chemical Machinery, Faculty of Mechanical Engineering and Informatics, University of Miskolc

Keywords: safety valve, flow force, CFD simulation, flow force simulation Safety valves are the most important safety device of the pressure system. For safety valves in the vast majority of cases in industrial environment, direct spring-loaded safety valves are used. The equation of motion for a direct spring-loaded safety valve is a one degree of freedom vibrating system. One of the most important parameter of the equation of motion is the lift force. My main goal was to compare the simulated flow force results with the measured flow forces and validating my CFD model. Simulations were made in ANSYS-Fluent. CFD simulations were made for numerous fixed valve disk position on different pressures. The results are in good agreement with the measured data.


Paper 127

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 127, 2019.

Case study of a BIM-based pool refurbishment project focusing on hydraulic engineering O. RÁK1 , P.M. MÁDER1 , M. ZAGORÁCZ2

J. ETLINGER2 ,

M. EÖRDÖGHNÉ MIKLÓS3 ,

1

Marcel Breuer Doctoral School, Department of Engineering Studies, Institute of Smart Technology and Engineering, Faculty of Engineering and Information Technology, University of Pecs, Hungary 2 Department of Engineering Studies, Institute of Smart Technology and Engineering, Faculty of Engineering and Information Technology, University of Pecs, Hungary 3 Department of Building Services and Building Engineering, Institute of Smart Technology and Engineering, University of Pécs, Hungary

Keywords: Building Information Modeling, engineering, coordination, project management BIM (Building Information Modeling) is a process and information exchange technology which supports the design and management workflows. This study is focused on a hydraulic engineering planning project in Budapest for the University of Physical Education’s pools’ refurbishment. The purpose of the BIM model production is to facilitate the planning coordination between the project stakeholders. The clash detection was made in Autodesk Navisworks and Solibri software but the reports were generated in .xlsx file format. This research introduces advantages and disadvantages of the implemented BIM workflows in the case of a refurbishment project. The BIM modeling and coordination had many specifics and drawing the inferences, a workflow optimization can be accomplished in following projects.


Paper 128

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 128, 2019.

Integrated cooling solution for concentrator photovoltaic cells G. RÓZSÁS, GY. BOGNÁR, G. TAKÁCS, B. PLESZ Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Hungary

Keywords: concentrator photovoltaic, microchannel, cooling, copper electroplating The efficiency of the most modern photovoltaic cells currently reaches 40-45%, which is achieved by concentrator systems (CPV). However, despite better device efficiencies CPVs have a major drawback, namely the high amount of waste heat that is caused by the high power density and the photovoltaic conversion losses. Extracting the heat is an important issue, as the efficiency of the device is greatly reduced if its operational temperature rises. Therefore, especially at higher concentrations, the use of active cooling methods is unavoidable. Efficient cooling requires the conduction of large quantities of internally generated heat with minimal thermal resistance, thus in these applications need new cooling solutions, like microscaled integrated cooling devices. This paper gives a short overview of the current cooling techniques for CPV and proposes a novel solution for the cooling of concentrator photovoltaic cells. In our concept the microscale channels are integrated into the back surface metallization, the microscale channels are formed by electroplating copper around a photoresist channel pattern. This approach has the advantage that it has no restrictions regarding the solar cell material and technology. We give a description on the reproducible technological process that can be used to produce microchannels, and show the optimization of the channel geometries to achieve optimal cooling performance in the case of a 20 x 20 mm concentrator solar cell.


Paper 129

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 129, 2019.

New fields and possibilities in strategic sourcing CS. SIPOS University of Debrecen Faculty of Engineering, Hungary

Keywords: supplier, strategic sourcing, purchasing, supply chain It is a forward-looking strategic possibilities and elements for learning from the perspective of future a business based on real-world study data. In the study, the North African countries are investigated and analyzed which are today almost unknown at the industrial purchasing field. The definition of the analysis criteria reflects the current state of the art, which may, on a factor basis, give rise to investments and to discover new suppliers in this unexplored or less known area. New opportunities can be found and opened up for business companies to use the data from this study. The results of this study could be a good base to support the development way for near future strategic purchasing policies.


Paper 130

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 130, 2019.

Magnetic braking method development for dynamic applications L. KAZUP, A. VÁRADINÉ SZARKA Research Institute of Electronics and Information Technology, University of Miskolc, Hungary

Keywords: magnetic brake, linear brake, contactless braking, alternating movement braking This paper introduces a research of magnetic fields with special attention to find a new method for braking fast-changing alternating movements. This work is part of a research project aiming to find the most efficient and accurate method for the development of linear magnetic brake for dynamic tests in industrial applications. In such applications characteristics of the braking force should be precisely defined and generated therefore control of this system requires highly reliable and accurate function definitions between the braking force and the controlling current. The goal of this research is to find magnetic methods and constructions by which automatic test solutions can be implemented to test different devices and tools which have been tested manually before.


Paper 131

©University of Pécs, 2019 Abstract book for the 15th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-449-8, Paper 131, 2019.

The examination and optimization of 3D printing (FDM) parameters D. TÓTH, M. TISZA, P.Z. KOVÁCS Institute of Materials Sciences & Technology, University of Miskolc, Hungary

Keywords: 3D printing, FDM We can easily give shape to our plans with great freedom with 3D printing technologies, so as applying the FDM (Fused Deposition Modelling) process. It is a great advantage of this method that there is no need for special and expensive tools; models can be easily and directly printed by using a simple, compact device. In order to obtain the desired results, we must know the process in detail, and its critical parameters determining the quality of the final product. During our experiments we examined that a given quality filament (the plastic wire used for printing) which can be processed with various printing options, in what combination would lead to the best results in tensile test.


Author Index ABDULRAZZAQ, A.K., 110 ABOU LTEAF, A., 51 AKHTARPOUR, A., 57 AL-FATLAWI, A., 111 AL-ORAN, O., 109 ALATTAR, M., 86 ALDABAIBEH, G., 58 ALHAFADHI, M.H., 112 ALI, M., 7 ALI, S.I.A., 59 ALSAMIA, S., 57 ÁMON, G., 67 BÖLKENY, I., 85 BÁBA, B., 61 BAKAI, N., 8 BALÁZS, D., 91 BALAN, A., 88 BARACSI, V., 45 BARANYAI, B., 2, 19 BARBARA, H., 9 BARLOKOVÁ, D., 124 BAROKOVÁ, D., 78 BEN DHAOU, O., 5 BENE, K., 67 BODOLAI, T., 119 BOGNÁR, G., 110 BOGNÁR, GY., 128 BORSOS, Á., 8, 27 BOUCETTA, S.I., 90 BOUMERZOUG, A., 33 BRINDLEY, P., 14 BUCEK, D., 62 BYTCANKOVA, L., 63 ÇADRAKU, H., 21 CAKÓ, B., 115, 123

CAO, H., 18, 116 CERVENANSKÁ, M., 78 CHOLEVA, R., 64 CINKLER, T., 96 CSICSAIOVÁ, R., 65, 71 CSIZMADIA, M., 118 CZAP, L., 85 DANUT, M., 93 DEZSŐ, J., 76 DUŠICKA, P., 62 EÖRDÖGHNÉ MIKLÓS, M., 115, 123, 127 EID, N., 55 EL-RAWY, M., 76 ELHADAD, S., 2 ERCSEY, ZS., 10, 16, 95, 104 ERDŐS, A., 60 ERDŐSY, D., 119 ETLINGER, J., 127 FÖLDES, G., 66 FERENCZ, M., 15 GALUSZKA, A., 88 GAZDAG, G., 43 GERELTSETSEG, A., 87 GULIAS, I., 51 GYÜRE, L.A., 26 GYERGYÁK, J., 2, 13, 27, 31, 45 HÁBER, I., 30 HAJDU, F., 84 HAJDU, L., 91 HAJMOHAMMADI, H., 68 HARRACH, D., 50 HE, H., 27 HE, H.H., 13


HE, Q.C., 14 HECKENAST, G., 15 HELEREA, E., 93 HEYDECKER, B., 68 HLAVCOVÁ, K., 66 HMOUMEN, M., 107 HONTI, R., 120 HORVÁTH, K.R., 16 HRUDKA, J., 65, 70, 71, 75 HUANG, ZK., 17 HUI, C., 3 HUTTER, A., 41 IBRAHIM, R., 19 IBRAHIM, S., 20, 37 ILAVSKÝ, J., 124 ISMAIL, M., 54 ISTÓK, R., 108 IVÁNYI, P., 8

KOHNOVÁ, S., 66 KONDOR, T., 22, 23, 43 KOPÁČIK, A., 64 KOTA, L., 92 KOTEŠ, P., 80 KOVÁCS, G., 111 KOVÁCS, N., 72 KOVÁCS, P.Z., 131 KOVÁCS, Z., 16 KOVÁCS-ANDOR, K., 24, 26 KOVARI, B.A., 94 KRÉSZ, M., 91, 114 KRALLICS, G., 112 KUCÍKOVÁ, L., 69 KUCOVÁ, E., 52 KUCZMANN, M., 118, 125

LABAT, M.M., 66 LENGYEL, A., 53 LENKOVICS, B., 123 JÁRMAI, K., 60, 92, 111 LENKOVICS, L., 115, 123 JÓZSA, V., 83 LEZSOVITS, F., 109, 122 JAGXHIU, B., 21 LIANG, Z.X., 42 JANCSKÁRNÉ ANWEILER, I., 101, 103, LIU, J., 38 105 LIU, S.S., 36 JANDA, T., 69 LU, C., 27 JEDRASIAK, K., 88 LUKÁCOVÁ, K., 75 JOÓ, A.L., 55 LUNGOCI, C., 88, 93 JOHANYÁK, Z.C., 90 MÜLLER, P., 101, 102, 103, 105 JUHÁSZ, H., 23 MÁDER, P.M., 127 JURDIK, S., 24 MAHMOOD, M.SH., 57 KÖVÁRI, B., 98 MAHROUSEH, R., 82 KÁLLAI, V., 121 MAITEH, S.M., 28 KÁROLYFI, K.A., 50 MARKO, I., 65, 71 KÓSA, B., 22, 23, 43 MARRA, G., 68 KŐVÁRI, B.A., 89 MARTON, M., 124 KAMEL, M.S., 122 MARX, F., 29 KARCHES, T., 61 MEDVEGY, G., 4, 34, 40 KATONA, A., 25 MEFLEH, W., 72 KATONA, T.J., 19 MENGYANG, W., 39 KAZUP, L., 130 MENYHÁRT, J., 117 KERTÉSZ, A., 15 MICHALEK, P., 56 KERTÉSZ, A.T., 44 MIZSEY, P., 121 KISGYÖRGY, L., 58 MOLNÁR, T., 9, 20, 37 KISS, F., 11 MOLNÁRKA, GY., 84 KISTELEGDI, I., 2, 7, 10, 16, 25, 30, 95 MOLNAR, M.L., 94 MYDLA, J., 73 KLINCSIK, M., 106


NÉMETH, Z., 125 NAGY, S., 49 NAILI, B., 30 NOVÁK, P., 95 ODRY, P., 106 ORBÁN, Z., 81, 82 ORFÁNUS, M., 62, 73 ÓZDI, A., 115 PAÁRI, P., 31 PALOTÁS, Á.B., 113 PAN, H.W., 12 PANCSA, E.ZS., 11 PAPP, F., 50 PAVUCEK, M., 74 PINTÉR, B., 89 PINTÉR, N., 48 PLESZ, B., 110, 128 PROBIERZ, E., 88 PUSZTAI, T., 126 QIANG, G., 3 RÁCZ, T., 32 RÁK, O., 8, 127 RÉTFALVI, D., 29 RÓZSÁS, G., 128 RÓZSA, G., 70, 75 RAIS, M., 33 RAJAB H., 96 REITH, A., 38 REN, C., 34 RUMANN, J., 63, 74 SÁRI, Z., 101, 103, 105, 106 SÁRKÖZI, R., 35 SÝKORA, J., 69 SAAD, K., 53 SADOUD, N., 46 SAKR, A., 81 SALEM, A., 76 SALI, A., 86 SCHIFFER, Á., 101, 102, 103, 105 SCHMIDT, J., 77 SEBESTYÉN, P., 31 SEIDL, K.L., 47 ŠEJNOHA, M., 69 SHENGA, Z.D., 78

SHI, Y., 6 SIMÉNFALVI, Z.K., 113, 126 SIPOS, C., 117 SIPOS, CS., 129 ŠKULTÉTYOVÁ, I., 65, 70, 71, 75 ŠOLTÉSZ, A., 73, 78 SROKA, B., 1 STANKO, Š., 65, 70, 71, 75 STORCZ, T., 104 ŠULEK, P., 62 ŠUTÚŠ, M., 70, 75 SZÜCS, C.L., 98 SZÜCS, E., 43 SZABÓ, M., 97 SZABÓ, T., 107 SZALAY, Z., 59 SZENTPÉTERI, I., 79 SZEPESI, G.L., 121 SZIGONY, J.G., 22, 48 SZTRANYÁK, G., 6, 18 TÓTH, A., 114 TÓTH, D., 131 TÓTH, G., 99 TAKÁCS, G., 128 TAKÁCS, S., 103 TAMÁS, A.M., 6, 18 TEJFEL, M., 87, 99 TISZA, M., 131 TU, K., 38 TUKORA, B., 101, 103, 105 VÁRADINÉ SZARKA, A., 130 VÁRADY, G., 101, 103, 104, 105 VÍZVÁRI, Z., 106 VAVRUŠ, M., 80 XIN, J., 40 XIONG, W., 17 XUE, K., 4 YAN, Y., 100 YUFANG, Z., 4 ZAGORÁCZ, M., 127 ZETZ, D., 10 ZHANG, Q., 41 ZHANG, S.Z., 36 ZHAO, L., 44


ZHAO, T., 27 ZOBOKI, G., 17 ZOLTÁN, E.SZ., 3, 28, 46 ZRENA, Z., 43 ZSEMBERI, A., 113


Keyword Index 3D model, 70 3D printing, 131 activated carbon, 124 activated sludge, 61 adaptive optimization, 92 adaptive reuse, 32 ADAS, 116 addicted patients, 46 adsorption, 124 aerodynamics, 25 affordable strategies, 19 Africa, 23 agent needs, 88 aggregate, 50 air pollution, 68 airport, 27 Aleppo, 20 alternating movement braking, 130 Alzheimer, 29 ancient village, 18 architectural dimensions, 46 architectural visual language, 40 architecture, 22, 25, 32 Armstrong tables, 86 art design, 40 artificial intelligence, 88, 117 artificial light, 46 Asia, 38 attendance lists, 93 automated data processing, 120 autonomous zones, 28 awareness, 41 backtrack algorithm, 95 bending and shear interaction, 55 big data, 97, 100

bilinear, 53 biokinetic modelling, 61 BLDC motor, 119 block rainfall, 65 brittle fracture, 77 building energy performance, 33, 49 Building Information Modeling, 8, 127 built environment, 29 built heritage, 47 camera based machine vision, 104 campus design, 31 capillary rise, 57 CasADi, 118 CFD, 25 CFD simulation, 126 CFRP, 53 charred layer, 69 child obesity, 14 chromatography, 124 Chuandou wooden frame, 6 city identity, 9 city in transition, 1 city model, 8 client, 97 climate change, 19, 59, 66 CLM scenario, 66 closure structure, 78 coarse-grained soils characteristics, 52 coastal landscape, 42 cold-formed steel profiles, 55 color representation, 105 combined material flow, 113 combined sewer network, 65 combined sewerage overflow chamber, 70 comfort, 7 comfort theory, 115


communication, 27 community autonomy, 36 composite, 56, 72 concentrator photovoltaic, 128 concession buildings, 17 conducted noise emission, 108 cone penetration test, 83 construction technology, 6 contactless braking, 130 contemporary architecture, 41 control plan, 90 controlling, 121 cooling, 128 cooperation, 26 coordination, 127 copper electroplating, 128 correlations, 52 CoSFBs, 72 cryptography, 100 cultural and creative industry, 44 culture, 23 cylinder extraction, 120 Damascus, 37 data Imputation, 86 data parallelism, 97 data plan, 90 data plane programmability, 87 database, 93 daylight, 16, 46 DC/DC converter, 118 decentralised systems, 61 deeply programmable network, 87 deprivation, 14 depth estimation, 104 design method, 15 development, 26, 31, 34 differential operators on graphs, 106 dimension, 18 disaster settlements, 28 discrete calculus, 106 displaced people, 28 distribution, 97 diving, 24 documentation, 20 dowels, 72 DPDK library, 87

DPDK Poll Mode Driver, 87 DPH, 83 DPL, 83 DPM, 83 driving behaviour, 116 drone, 20, 101 drones, 105 DTW, 98 dual system, 51 DunaĂşjvĂĄros, 48 dynamic analysis, 54 dynamic energy simulation, 59 dynamic fracture, 77 dynamic penetration test, 83 dynamic probing, 52 dynamic simulation, 121 dynamic thermal simulations, 10 ecological landscape, 42 ecosystem, 26 ecosystem design, 11 education, 11, 35 educational environment, 24 elastic FE analysis, 82 electro-thermal model, 110 electromagnetic simulation, 119 elliptic and parabolic problems, 106 EMC, 119 EMI, 119 employee scheduling, 89, 94 energy consumption, 19, 96 energy demand, 16 energy design, 2, 7, 16, 95 energy dissipation, 74 energy efficiency, 30, 43 energy simulation, 49 energy simulation., 33 energy spaces, 43 engineering, 127 England, 14 enhancement, 109 environment, 11 environment design, 45 ETABS 2016, 51 Eurocode, 55 existing slab, 82 exoskeleton, 102


failure control, 81 FDM, 131 FEM, 53, 60, 107 fiber reinforced polymers, 81 fibre concrete, 80 fire curve, 69 Firefly algorithm, 92 flexural capacity, 55 flood protection dike, 78 flood wave, 73 flow force, 126 flow force simulation, 126 flow homogeneity, 63 fluid, 37 foam core, 111 food outlets, 14 formwork shape, 50 fragmentation, 77 future, 4 future cities, 11 gait analysis, 102 GAMLSS approach, 68 gas hydrate, 85 Geographic Information System, 8 geometry generation, 10, 95 gestures, 101 glass, 77 GLT beam, 69 green building technology, 3 green roofs, 123 green space, 14 grid road system, 38 hardness test, 112 health, 45 heat transfer, 123 heritage, 21, 37 heritage place inventory, 47 heritage protection, 47, 48 heuristic optimization, 92 Hill anisotropic, 53 history, 41 history of architecture, 15 HMI system, 101 humanism, 41 Hungarian method, 89 Hungarian NEST+, 43

hybrid, 111 hydrate detection, 85 hydraulic assessment, 78 hydraulic physical modelling, 74 hydrodynamic model, 70 hydrodynamical modelling, 67 hydropeaking, 62 hyporheic flow, 76 I-V characteristics, 110 identification and restoration, 21 image processing, 103 impedance, 108 individual treatment unit, 61 induction machine, 125 industrial hall, 25 inhibitor, 85 innovative solution, 22 intake structure, 63 integer programming, 94 Intercisa, 48 interior space, 46 intervention, 36 IoT, 96 ITS, 90 Kรกdรกr-cube, 22 Klรกtov river branch, 78 lake, 24 lakebed leakance, 76 landscape heritage, 48 lateral force method, 51 lateral spillway, 73 Leica AT960-MR, 64 life, 27 life-span-community involvement, 19 Limes, 48 linear brake, 130 Lipjan region, 21 literature review, 29 load bearing capacity, 79 load minimization, 91 local renewal, 36 localization, 3 LoRa, 96 LoRaWAN, 96 low impact construction, 19


low pressure small hydropower plant, 63 LPWAN, 96 lumped elements, 106 machine learning, 58, 97, 103 magnetic brake, 130 matchings in bipartite graphs, 86 material cost, 54 mathematical algorithms, 10 mathematical modelling, 113 MATLAB, 125 Medical School, 31 MgO nanoparticles, 122 microchannel, 128 micropollutants, 124 minimum weight, 111 mobile, 97 modeling, 107 modern lamps, 108 modernization, 38 MODFLOW-NWT, 76 modular design, 39 modulus of elasticity, 53 moment redistribution, 81 moment resisting frames, 51 mosquito, 45 multi-objective optimization, 30 nanofluid, 109 Nanofluids, 122 national identity, 23 natural ventilation, 25 nature, 26 neural network, 58, 85 nonlinear system modeling, 84 nonlinear vibrations, 107 numerical flow modelling, 63 numerical modelling, 55, 67, 73 numerical simulation, 60, 78, 84, 112 observation, 5 office building, 95 office building optimisation, 10 office high-rise buildings, 30 old district, 12 online signature verification, 98 operational research, 89 operational semantics, 99

optimization, 60, 111, 118 optimized design, 39 overhead crane, 107 overheating, 59 overseas design, 38 Oxbowlake, 76 P4 language, 87, 99 PĂŠcs, 31 packing density, 50 parabolic trough collector, 109 parameter sensitivity, 67 parametric design, 35 Paris, 27 patterns, 15 pavement deflection, 79 PBHTC ratio, 122 people with dementia, 29 pesticides, 124 phase-field, 77 philosophy of symbiotic, 12 plane segmentation, 120 planning strategy, 44 point cloud, 120 Pool boiling, 122 post-disaster shelters, 19 power factor, 108 prefabricated concrete buildings, 8 preprocessing, 98 press machine, 60 prevention, 45 production of aromatic hydrocarbons, 113 progressive algorithm, 89 project management, 127 property verification, 99 protection, 18 protection dike, 73 public art, 34, 36 public space, 5, 37 purchasing, 117, 129 qLPV modelling, 125 qualitative parameters, 71 radiated noise emission, 108 rainwater, 71 reaction kinetic parameters, 113 reconstruction, 12


rectangular hollow flange beams, 55 rectification column, 121 recycle, 23 reduction factor, 81 refugee, 28 regional characteristics, 42 regional culture, 44 reinforced concrete slab, 82 reinvent, 27 reliability index, 81 relics, 4 renewal, 18 renovation, 4, 22 replenishment, 76 research, 36 residual bearing capacity, 69 resilience, 1 respect, 4 response spectrum method, 51 responsibility, 11 revitalization, 1 river, 26 river bed capacity, 73 road accidents, 58 roundabouts, 116 RPS, 56 run-of-river hydropower plant, 62 runoff, 66 safe zones, 28 safety valve, 126 sandwich panels, 111 sandy soil, 57 scheduling, 114 scour, 74 SDN, 90 search space reduction, 89 security, 100 sediment transport, 62 seismic retrofit, 54 sensitivity analysis, 84 server, 97 shear capacity, 55 shear contact, 80 shear resistance, 80 shear walls, 51 Sheep World, 88

short-term rainfal, 66 shrinkage, 1 shrinking city, 1 Sieve analysis, 57 simplified model, 2 simulation, 2 simulation framework, 91 site, 41 slimfloor, 72 smart city, 8, 75 social, 27 social behaviours, 5 social integration, 9 software development, 93 solar cells, 110 Solar Decathlon Europe, 7, 22, 23, 43, 115, 123 solar energy, 109 solar radiation, 123 SOMESHINE TEAM, 43 space combination, 39 space energy, 13 space organisation, 10 spatiality, 5 spatio-temporality, 5 spruce, 53 standard deviation, 64 startup, 11 steel frame structures, 54 stilling basin, 74 strategic sourcing, 129 street art activities, 13 strongly possible world, null values, 86 structural assessment, 82 structural number, 79 subway public space, 34 Sudan, 59 supplier, 117, 129 supply chain, 117, 129 surface runoff, 71 survival, 17 sustainability, 7, 32 sustainable, 22 sustainable development, 18 synthesys, 10 Syria, 20


technology and science development, 40 temporality, 5 tensile structure, 49 testing, 64 thermal comfort, 2, 16, 59, 115 thermal efficiency, 109 thermal simulation, 16 thermo-catalytic cracking, 113 timber beam, 53 tourism, 26 TP transformation, 125 traces of the times, 40 traditionalization, 3 Unisim Design, 121 university, 31 update, 17 urban design, 45 urban heritage, 9 urban planning, 15 urban public space, 13 urban quality, 9 V2I, 90 V2V, 90 validation, 33 VANET, 90 vehicle emission modelling, 68 verification, 99 vernacular architecture, 6 VI-Suite, 33 vibration, 84 village in the city, 12 vision, 27 visitor centre, 26 visual comfort, 46 visual-based analysis, 102 warm-up effect, 64 warping torsion, 60 waste, 75 waste management, 75 wastewater, 65 water, 15, 24 water stability, 123 watermills, 21 watershed hydrology, 67 web service, 97

welding pipe, 112 wireless sensor network, 91 Wuhan Biennale, 17 yield stress, 53 yield-line analysis, 82


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Abstract book for the 15th MIKLÓS IVÁNYI INTERNATIONAL PHD & DLA SYMPOSIUM  

Abstract book for the 15th MIKLÓS IVÁNYI INTERNATIONAL PHD & DLA SYMPOSIUM  

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