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NEC, NEC TOKIN and Tohoku University develop spin-Seebeck thermoelectric device w/ 10x better conversion efficiency

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NEC Corporation, NEC TOKIN Corporation and TOHOKU UNIVERSITY have jointly created a thermoelectric (TE) device using the spin Seebeck effect (SSE) with conversion efficiency 10 times higher than a test module that was produced based on a multi-layered SSE technology published by the Tohoku University group in 2015.

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Modified enzyme can increase second-generation ethanol production

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One of the main challenges of second-generation biofuel production is identifying enzymes produced by microorganisms for use in a cocktail of enzymes to catalyze biomass hydrolysis, in which the enzymes act together to break down the carbohydrates in sugarcane trash and bagasse, for example, and convert them into simple sugars for fermentation.

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Roadmap shows how to improve lignocellulosic biofuel biorefining with high-value products from isolated lignin

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A new review article in the journal Science highlights emerging opportunities to increase the transformation of lignin to value-added products—i.e., lignin valorization. Conventionally, most large-scale industrial processes that use plant polysaccharides burn lignin to generate the power needed to transform biomass. Ragauskas, et al.,

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After 50 Years, Digital Voices Speak Again

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Due to their low cost, thin form factor, and pliability, flexi discs became the medium of choice for magazine publishers who wished to supplement articles with audio content. The authors outlined two general strategies to convert human speech into a digital signal: voice-waveform digitization methods and vocoder methods.

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New bimetallic copper-titanium hydrogen evolution catalyst outperforms platinum by more than 2x

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It is widely believed that room temperature electrochemical reduction of water to molecular hydrogen offers a significant promise for supplying CO 2 -free hydrogen, which can be used directly as a fuel or as reactant to convert CO 2 and to upgrade petroleum and biomass feedstocks to value-added chemicals and fuels through hydrotreating processes.

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Exeter team develops low-cost photoelectrode for spontaneous water-splitting using sunlight

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Researchers at the University of Exeter (UK) have developed a novel p-type LaFeO 3 photoelectrode using an inexpensive and scalable spray pyrolysis method. The greatest challenge is to develop a suitable technology for large scale and cost effective solar fuel production to compete with fossil fuel. —Pawar and Tahir. Govinder S.

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Sensor Networks Help Fight Floods and Noise Pollution

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This is a sponsored article brought to you by NYU Tandon School of Engineering. The time between the transmission and detection of this pulse allows for the calculation of distance, which can be converted to flood depth. A common adage is that if you can measure a thing, you can control a thing, or at least manage it.