• 世界上最薄的发电机

    14-10-17 Researchers from Columbia Engineering and the Georgia Institute of Technology report today that they have made the first experimental observation of piezoelectricity and the piezotronic effect in an atomically thin material, molybdenum disulfide (Mo...

  • 超高密度存储与计算架构

    14-09-29 Electricity and magnetism rule our digital world. Semiconductors process electrical information, while magnetic materials enable long-term data storage. A University of Pittsburgh research team has discovered a way to fuse these two distinct propert...

  • 电动汽车充电是否会影响电网运行?

    14-02-24 Selecting a Chevy Volt, Tesla Model S, Nissan Leaf -- or one of many other new models -- shoppers in the United States bought more than 96,000 plug-in electric cars in 2013. That's a tiny slice of the auto market, but it's up eighty-four percent fro...

  • 细胞如何在电场中移动

    13-03-29 Like tiny, crawling compass needles, whole living cells and cell fragments orient and move in response to electric fields -- but in opposite directions, scientists at the University of California, Davis, have found. Their results, published April 8...

  • 花朵会向传粉者发送电信号

    13-02-25 Flowers' methods of communicating are at least as sophisticated as any devised by an advertising agency, according to a new study, published February 21 in Science Express by researchers from the University of Bristol. However, for any advertisement...

  • 河流入海时蕴藏巨大的能量

    12-04-20 A new genre of electric power-generating stations could supply electricity for more than a half billion people by tapping just one-tenth of the global potential of a little-known energy source that exists where rivers flow into the ocean, a new anal...

  • 物理学家利用电场成功将液体固化

    11-10-12 Physicists have predicted that under the influence of sufficiently high electric fields, liquid droplets(液滴) of certain materials will undergo solidification, forming crystallites at temperature and pressure conditions that correspond to liquid...

  • 日本中部电力公司获得紧急贷款

    11-06-24 Chubu Electric, Japan's third biggest utility, will receive an emergency loan to purchase alternative sources of power, as the country continues to face a shortage. 日本第三大电力公司中部电力公司将收到一笔紧急贷款用于购买替代性能源,目前日本面临持续...

  • 新型太阳能电池板更高效

    11-05-02 High-performance nanotech materials arrayed on a flat panel platform demonstrated seven to eight times higher efficiency than previous solar thermoelectric generators, opening up solar-thermal electric power conversion to a broad range of residentia...

  • 电流能使石墨烯磁化

    11-04-15 A team led by Professor Andre Geim, a recipient of the 2010 Nobel Prize for graphene, can now show that electric current a flow of electrons can magnetise(使磁化) graphene. The results, reported in Science, could be a potentially huge breakthrough...