搜索结果: 1-15 共查到“国际动态 工学 air”相关记录25条 . 查询时间(0.031 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...
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About two-fifths of all the water that gets withdrawn from lakes, rivers, and wells in the U.S. is used not for agriculture, drinking, or sanitation, but to cool the power plants that provide electric...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...
Bacteria trapped -- and terminated -- by graphene filter: Laser-induced graphene to remove pathogens from the air
Bacteria trapped terminated graphene filter pathogens
2019/10/10
Airborne bacteria may see what looks like a comfy shag carpet on which to settle. But it's a trap.
Rice University scientists have transformed their laser-induced graphene (LIG) into self-sterilizing...
Oak trees in Southern U.S. cities are natural urban air filters（图）
Oak trees Southern cities U.S. natural urban air filters
2019/10/18
Researchers at the University of North Texas have found that two oak tree species, post oak and live oak, that are widespread across the U.S. South remove black carbon from the urban atmosphere. The f...
The air we breathe contains particulate matter from a range of natural and human-related sources. Particulate matter is responsible for thousands of premature deaths in the United States each year, bu...
Survey captures global picture of air pollution’s effects on birds（图）
global picture air pollution birds
2017/9/5
Famously, the use of caged birds to alert miners to the invisible dangers of gases such as carbon monoxide gave rise to the cautionary metaphor “canary in a coal mine.”But other than the fact that exp...
Concurrent heat waves,air pollution exacerbate negative health effects of each
Concurrent heat waves air pollution exacerbate negative health
2017/3/14
The combination of prolonged hot spells with poor air quality greatly compounds the negative effects of each and can pose a major risk to human health, according to new research from the University of...
Satellites can improve regional air quality forecasting
Satellites regional air quality forecasting
2015/3/4
Satellites planned for launch during the next several years may have an expanded role: Forecasting air-quality worldwide.The animation, constructed from data gathered by a South Korean geostationary s...