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, More than IBM, has just released modulator nearly 10 times smaller, which means that it's capacitance is smaller, so the switching speed may be faster. The researchers speculate that the modulation of information transfer rate of up to 100 gigabits per second, but the drawback is that bandwidth is relatively narrow. The operating bandwidth of the switch only a few nanometers, while the IBM modulator bandwidth can cover the entire C-band. Research papers published in the switch is made by the electron beam lithography, the researchers pointed out that this switch can also be used to produce deep ultraviolet lithography. The team is currently working with Intel and the Belgian IMEC companies, aims to show that nano-structures can be produced at lower cost. Excerpt from \University of California, Berkeley, chemistry professor Yang Peidong (phonetic) and his colleagues in the UK \The performance of silicon nanowires have been available thermoelectric materials with the best available comparable. Because of silicon's thermoelectric materials than the current mainstream is more abundant, and there is good support for production infrastructure, so the final use of the engine can be used to produce silicon solar heat or low-cost devices. The researchers created a vertically aligned silicon nanowires, the nanowires 20 nm in diameter to 300 nanometers. Nanowires tend to nanoparticle synthesis liquefaction, and induced it to grow. But it made of nanowires with smooth surface. Thus, the researchers used chemical etching to the surface becomes rough nanowires and found that about 50 nm wide nanowire conductivity remains very good, but the thermal conductivity rate of only 1% of the original. This performance has commercial thermoelectric bismuth telluride materials close. At present, the theory can not yet explain why the thermal conductivity of nanowires decreased so dramatically. The researchers believe that one of the reasons may be close to one-dimensional sodium Yang Peidong study group is considering how to improve the performance of nanowires. They plan to reduce the size of nanowires and nanowire surface to make even more rough, believe that this can improve the thermoelectric properties of silicon nanowires. The team also plans to produce the actual use of silicon nanowire thermoelectric device, and tested. The researchers said the study will have a significant impact. Not only because they reveal the silicon can also be used as a potential thermoelectric materials, but also to create a unique thought process - rough nanowires produced by this method to improve the material properties is very new. It is also permitted to use other materials to improve the thermoelectric performance opened a new road. \Excerpt from \Scientists recently developed a sponge like material, which has so far the highest methane storage capacity. Related Articles published in the January 23 \A class known as metal-organic structures (MOFs) of the ultra-porous crystalline material has slowly emerged, they have a large surface area, which is a class of promising energy storage materials. However, so far, no storage capacity which MOF structure developed to achieve the practical application of the U.S. Department of Energy standards. Zhou Hong, University of Miami, who said it,ed hardy clothing, now methane-fueled vehicles to replace conventional vehicles,ugg italia, are facing the biggest problem is the lack of efficient,air jordan shoes cheap, economic and secure vehicle storage system. The latest study, only Zhou Hong and the National Institute of Standards and Technology and researchers at the University of Pennsylvania,air jordans, together developed a new type called PCN-14 MOF, its surface area per gram can be more than 2000 m2 (2176m2 / g .) Laboratory studies have shown that the cage formed by a number of nano-materials in the temperature of 290K and 35bar pressure,ugg prezzo, the methane storage capacity 230v / v, more than the U.S. Department of Energy 180v / v standard of 28 percent, this is a new record of the methane storage capacity. Taken from (Web of Science) New nanostructured thin film shows a highly efficient conversion of solar prospects make solar cells cheaper and more efficient competition, many scientists and start-up companies is the hope on the use of nano-structure of the new design. Using nanotechnology, scientists can test and control how a material is produced, capture, transfer and storage of free electrons - these properties for the conversion of sunlight into electricity is very important. Two kinds of nano-materials, solar cell manufacturing technology are obviously put wood filler 相关的主题文章： ugg milano Extek 6065 film cleaning machine _1253 air jordan shoes cheap Modern analytical technique air jordan shoes cheap Enlarge stride precision fe |
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