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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...

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...

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...

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...

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...

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...

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...

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...

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...

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...