• 城市绿化树木可能与犯罪率有关

    10-11-02 Along with energy conservation and storm-water reduction, scientists may soon be adding crime-fighting to the list of benefits that urban trees provide. Researchers with the U.S. Forest Service's Pacific Northwest (PNW) and Southern Research Station...

  • 具有神秘力量的脉冲星被发现

    10-11-01 Dramatic flares and bursts of energy - activity previously thought reserved for only the strongest magnetized pulsars(脉冲星) - has been observed emanating from(放射,发源于) a weakly magnetised, slowly rotating pulsar. The international team of...

  • 研究人员发现意料之外的磁力

    10-10-19 Theoretical work done at the Department of Energy's Oak Ridge National Laboratory has provided a key to understanding an unexpected magnetism between two dissimilar(不同的) materials. The results, published in Nature Communications, have special s...

  • 奥巴马演讲 Solar Power & a Clean Energy Economy

    10-10-09 Over the past twenty months, weve been fighting not just to create more jobs today, but to rebuild our economy on a stronger foundation. Our future as a nation depends on making sure that the jobs and industries of the 21st century take root here in...

  • 节省能源的好方法:停止浪费粮食

    10-10-04 Scientists have identified a way that the United States could immediately save the energy equivalent(等价的,相等的) of about 350 million barrels of oil a year without spending a penny or putting a ding in the quality of life: Just stop wasting fo...

  • 推广电动汽车可降低汽车尾气排放

    10-09-28 Electric cars hold greater promise for reducing emissions and lowering U.S. oil imports than a national renewable portfolio(公文包,文件夹) standard, according to research conducted by Rice University's Baker Institute for Public Policy. This asse...

  • 研究人员设计出一种新纳米网眼材料

    10-09-24 Computers, light bulbs, and even people generate heatenergy that ends up being wasted. With a thermoelectric device, which converts heat to electricity and vice versa(反之亦然) , you can harness that otherwise wasted energy. Thermoelectric devices...

  • 电磁能源成为节省能源的新选择

    10-09-24 The Office of Naval Research Global (ONR Global) continues to pursue aggressive energy goals established by Secretary of the Navy Ray Mabus, with the design of a system that controls electrical flow for lighting, a highly efficient platform that may...

  • 污泥转化为电力实验取得成功

    10-09-24 Like the little engine that could, the University of Nevada, Reno experiment to transform wastewater sludge(烂泥,泥泞) to electrical power is chugging along, dwarfed by the million-gallon tanks, pipes and pumps at the Truckee Meadows Water Reclam...

  • 评估有机太阳能电池的环境影响

    10-09-19 Solar energy could be a central alternative to petroleum-based energy production. However, current solar-cell technology often does not produce the same energy yield(能量输出) and is more expensive to mass-produce. In addition, information on the...