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Researchers develop high-strength nanotwinned aluminum alloy

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While these are easy to produce in metals such as copper and silver, they are difficult to introduce in aluminum because of its high “stacking fault energy.”. The formation of the 9R phase in aluminum is even more difficult because of its high stacking fault energy. earlier post ) or distortions in the crystal structure.

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UC Davis ITS researchers take a detailed look at water consumption and withdrawal requirements for ethanol

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to 335 L/vehicle kilometer traveled (VKT) for Iowa and from 59 to 214 L/VKT for Nebraska. Our water accounting system also considers different types of uses (consumptive, nonconsumptive, and withdrawal) and accounts for application losses, conveyance losses, water use of direct energy inputs throughout the life cycle, and coproduct credits.

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Study Concludes That Use of Cellulosic Feedstocks to Meet US Biofuel Requirements Will Still Likely Result in Expansion of the Gulf Dead Zone

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Fertilizer applied to cornfields in the central US—including states such as Illinois, Iowa, Nebraska and Wisconsin—is the primary source of nitrogen pollution in the Mississippi River system, which drains into the Gulf of Mexico. Article ASAP doi: 10.1021/es9011433. Earlier post.). Christine Costello, W. Michael Griffin, Amy E.