A material that absorbs methane, the natural gas used in cooking stoves and to heat homes and businesses, may help absorb the toxic gas during leaks. A Lawrence Livermore Nat'l Lab and UC Berkeley team said "nanoporous zeolite," a material used in detergents and water purifiers, can capture...
In a flash distilling unit, evaporator feed (seawater) first absorbs heat in the___. A. vapor feed heater B. air ejector condenser C. saltwater heater D. distillate cooler 相关知识点: 试题来源: 解析 D. distillate cooler 反馈 收藏
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They indeed introduced Beta-21S titanium, which approached the heat resistance of Rene 41, the primary structural material of Dyna-Soar, but had only half the density. Yet even this achievement was not enough. Structural designers needed still more weight saving, and while they experimented with ...
Researchers at Stanford university have developed anew material that can move heat out of buildings and intospace. The researchers say the material can cool buildingseven on hot days. The cooling material is a very thin sheetwith many la
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The team created films of agar (琼脂), a material that comes from seaweed, along with other additives developed from plants and varied the thickness of the films. After running the materials through a battery of tests, the researchers measured how well the films reduced sound across a range ...
Thus, our body has ways of reversing any changes that affect these conditions. For example, if our temperature drops too low on a cold winter's day, we shiver. Shivering involves the contraction of muscles, which generates heat, thereby counteracting the heat we lo...
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