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5篇 您的检索式:作者名="J.Dobson"
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1Decarbonising energy: The developing international activity in hydrogen technologies and fuel cells显示文摘Hydrogen technologies and fuel cells offer an alternative and improved solution for a decarbonised energy future.Fuel cells are electrochemical converters;transforming hydrogen (or energy sources containing hydrogen) and oxygen directly into electricity.The hydrogen fuel cell,invented in 1839,permits the generation of electrical energy with high efficiency through a non-combustion,electrochemical process and,importantly,without the emission ofits point of use.Hitherto,despite numerous efforts to exploit the obvious attractions of hydrogen technologies and hydrogen fuel cells,various challenges have been encountered,some of which are reviewed here.Now,however,given the exigent need to urgently seek low-carbon paths for humankind’s energy future,numerous countries are advancing the deployment of hydrogen technologies and hydrogen fuel cells not only for transport,but also as a means of the storage of excess renewable energy from,for example,wind and solar farms.Furthermore,hydrogen is also being blended into the natural gas supplies used in domestic heating and targeted in the decarbonisation of critical,large-scale industrial processes such as steel making.We briefly review specific examples in countries such as Japan,South Korea and the People’s Republic of China,as well as selected examples from Europe and North America in the utilization of hydrogen technologies and hydrogen fuel cells.John Meurig Thomas Peter P.Edwards Peter J.Dobson Gari P.Owend 2020Journal of Energy Chemistry2020,29,12:9
2四川武隆地区二叠—三叠系磁性地层学研究显示文摘四川武隆地区的p/T界线为一化石丰富、沉积连续的海相碳酸盐剖面。通过对岩石磁学的研究,鉴别出三叠系灰岩样品以磁铁矿为主,其中约70%为多畴磁铁矿。ChRM由单畴磁铁矿所携带。二叠系灰岩样品主要为单畴与超顺磁颗粒的磁铁矿,样品不同程度地遭受重磁化。然而,根据其退磁中NRM矢量变化的轨迹与极性有关,使确定绝大部分样品的极性成为可能。本文通过与国外剖面的对比,认为Illawarra反转起始于吴家坪阶上部,而Kiaman极性段中则存在着若干正向极性。陈海泓 孙枢 李继亮 F.Heller J.Dobson 1992中国科学(B辑)1992,B,12:6
3东北亚的新仙女木和全新世气候演变的初步证据── 一个湖泊岩心的古环境变化的同位素和磁性记录显示文摘内蒙古合同察汗淖碱湖的磁化率和稳定同位素资料的初步证据表明,在东北亚也经历了新仙女木(YoungerDryas)寒冷事件。此外,9000~6000aBP的潮湿气候环境可能是由于季风活动加剧所致,随后,一个逐渐干化的气候条件一直延续到现在。S.Bernasconi J.Dobson J.A.Mckenzie D.Ariztegui F.Niessen 陈延成 杨清堂 1998化工矿产地质1998,20,3:2
4Luminescence Properties of Nanocrystalline Y<sub>2</sub>O<sub>3</sub>:Eu显示文摘G.Wakefield E.Holland P. J.Dobson J. L.Hutchison 2001Adv Mater2001,,20:1
5从“舍恩事件”中应吸取的教训显示文摘2002年中期,在研究有机材料和器件光电性能领域最著名的贝尔实验室,暴露了一项学术丑闻。其中一位声誉很高的年轻科学家被指控提供了有误的实验结果。对于詹·亨可·舍恩来说这意味着他的学术研究事业的终止。这对于他是个悲剧,我认为他值得社会公众些许同情和理解。Peter J.Dobson 李会玲 2003中国科学基金2003,17,6:0
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