搜索结果: 1-15 共查到“国际动态 air”相关记录50条 . 查询时间(0.375 秒)
MIT engineers have synthesized a superabsorbent material that can soak up a record amount of moisture from the air, even in desert-like conditions.
Nearly 20 percent of today’s electricity in the United States comes from nuclear power. The U.S. has the largest nuclear fleet in the world, with 92 reactors scattered around the country. Many of thes...
Petro earns Air Force award to research next-gen spacecraft propellants（图）
佩特罗因 下一代 航天器 推进剂
2023/5/18
With the advancement of satellite propulsion systems will come a new age in space exploration, which is why the Air Force Office of Scientific Research has selected Elaine Petro, assistant professor o...
Using artificial intelligence, Cornell engineers have simplified and reinforced models that accurately calculate the fine particulate matter (PM2.5) – the soot, dust and exhaust emitted by trucks and ...
Electric cars – and their continued sales growth – are expected to have a greener, cleaner influence on air pollution and reduce human mortality in most, if not all, U.S. metropolitan areas, according...
Reaching carbon emission goals requires efforts on all fronts of carbon management: decreasing carbon emissions, capturing carbon, and storing carbon.
Lithium-air batteries were thought promising in the 1970s as a potential power source for electric vehicles, offering energy densities that rival gasoline and significantly surpass conventional lithiu...
Some engineers find inspiration in the mechanics of bird flight and the architecture of bee nests. Others think much smaller.
Vapor-collection technology saves water while clearing the air（图）
蒸汽收集技术 净化空气 节约用水 发电厂 冷却塔
2023/6/19
About two-fifths of all the water that gets withdrawn from lakes, rivers, and wells in the U.S. is used not for agriculture, drinking, or sanitation, but to cool the power plants that provide electric...
Hovering 100 meters above a densely populated urban residential area, the drone takes a quiet breath. Its goal is singular: to systematically measure air quality across the metropolitan landscape, pro...
How do birds breathe so efficiently? Looped airways facilitate air flows（图）
birds breathe efficiently Looped airways facilitate air flows
2021/4/9
Birds breathe with greater efficiency than humans because of the structure of their lungs --looped airways that facilitate air flows that go in one direction -- a team of researchers has found. The re...
Researchers set to take to the air above the Arctic and New York City（图）
air above Arctic New York City
2020/10/10
Atmospheric scientists are embarking on two new research projects supported by the U.S. National Science Foundation that involve using sophisticated planes to understand the atmospheric chemistry and ...
Unexpected wildfire emissions impact air quality worldwide（图）
Unexpected wildfire emissionst air quality worldwide
2020/10/30
In lab studies of wildfire, nitrous acid seems to be a minor actor, often underrepresented in atmospheric models. But in the real-world atmosphere during wildfires, the chemical plays a leading role.I...
Study reveals contamination of air and environment near patients with COVID-19（图）
contamination air environment near patients COVID-19
2020/8/14
A study by University of Nebraska Medical Center researchers provides new evidence of infectious SARS-CoV-2 throughout the environment and in air samples collected in COVID-19 patient care areas. SARS...
Atmospheric scientists identify cleanest air on Earth in first-of-its-kind study（图）
Atmospheric scientists identify cleanest air Earth first-of-its-kind study
2020/6/12
Atmospheric scientist Sonia Kreidenweis of Colorado State University and her colleagues have identified an atmospheric region unchanged by human-related activities. The National Science...