INTERNATIONAL JOURNAL OF INNOVATIVE TECHNOLOGY AND CREATIVE ENGINEERING (ISSN:2045-8711) VOL.4 NO.6 JUNE 2014
From Editor's Desk Dear Researcher, Greetings! Research article in this issue discusses about Segmenting Heart Sounds. Let us review research around the world this month; Elastic battery yarn could power smart clothes. Small, flexible electronics promise "smart" clothes of the future, such as T-shirts loaded with sensors that can discreetly keep track of your vital signs and check for health problems. Now Huisheng Peng and his colleagues at Fudan University in Shanghai, China, have created a thread-like battery that can be woven into smart textiles to keep them running smoothly. First, the team created wires made from carbon nanotubes nested inside each other. Some wires were coated with a powder of lithium titanium oxide nanoparticles, and others with lithium manganese oxide. One of each type of wire – representing the battery's positive and negative terminals – were twisted together with a gel electrolyte and a thin strip of non-conducting material separating them. A 10-centimetre-long piece of this battery weighs just 0.08 grams and can light a string of LEDs for up to a minute, the team reported. The researchers coiled the battery around an elastic thread to produce a stretchy power source. The threads could be bent and pulled hundreds of times without significant cost to their performance. Colour-changing metal to yield thin, flexible displays. Sheets of a unique alloy just a few nanometres thick take on different hues with the flick of a switch, offering a way to make full-colour displays for wearable computers such as Google Glass or smart contact lenses. The alloy germanium-antimony-tellurium (GST) can be switched between an amorphous phase, in which its molecular structure is disordered, and a highly ordered crystalline phase by the energy of a laser beam or electric current. The material is being explored for use in advanced memory chips, and is already being used in recording devices. For instance, when a laser is fired at a DVD coated in the alloy, the disc stores binary 0s and 1s as one of the two phases. The telltale reflectivity of each phase is then used to read back the data. Harish Bhaskaran and Peiman Hosseini at the University of Oxford were investigating the material's exotic optical properties, some of which appear when it is made into very thin films. Even online, emotions can be contagious. A face-to-face encounter with someone who is sad or cheerful can leave us feeling the same way. This emotional contagion has been shown to last anywhere from a few seconds to weeks. A team of researchers, led by Adam Kramer at Facebook in Menlo Park, California, was curious to see if this phenomenon would occur online. To find out, they manipulated which posts showed up on the news feeds of more than 600,000 Facebook users. For one week, some users saw fewer posts with negative emotional words than usual, while others saw fewer posts with positive ones. Digital emotions proved somewhat contagious, too. People were more likely to use positive words in Facebook posts if they had been exposed to fewer negative posts throughout the week, and vice versa. The effect was significant, though modest. It has been an absolute pleasure to present you articles that you wish to read. We look forward to many more new technologies related research articles from you and your friends. We are anxiously awaiting the rich and thorough research papers that have been prepared by our authors for the next issue.
Thanks, Editorial Team IJITCE
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