[1]S. Jin, T. H. Tiefel, M. McCormack, et al.: Sci-ence, 264(1994), p.413.[2]R. von Helmolt, J. Wecker, B. Holzapfel, et al.: Phys. Rev. Lett., 71(1993), p.2331.[3]Y.
Cu2ZnSnS4 (CZTS) thin films were successfully prepared by sulfurization of ion bean sputtered precursors on soda-lime glass substrate. The single phase of stann
The research of rare earth elements (RE), added into cemented carbide tools, is one of the recent developments of new types of tool materials in China. Systemat
The damaged and strain subsurface layers of semi-insulating(SI) GaAs substrate were characterized non-destructively by Raman back-scattering.The study shows tha
通过借助计算机应用设计软件、几何图形学的基本理论和现代汽车设计的实际操作过程,重点探讨了如何建立适合汽车设计的曲线、曲面的数学模型以及在汽车设计中的应用。
1 IntroductionSomeorganiccompoundscantransferenergyabsorbedinUVregiontorareearthionswhiletheycoordinatedwiththeionsandthentherareearthionsemitcharacter isticfluoresence .Theluminousintensityandlifetimeofthecoordinatedrareearthionsismuchmorethanthoseofthef
1IntroductionOverthepastfewyears,intensiveworkhasbenmadetoachievemulticolororfulcolorthinfilmelectroluminescence(EL)device...
针对油田原使用的地锚车存在功能单一、设备利用率低的问题,设计开发了一和既可用于钻起地锚又可起重的多功能地锚车.对多功能地锚车的结构、功能及工作原理进行了介绍.
阳离子的分析特性是离子分析鉴定的基础。它主要是指与离子分离、鉴定有关的性质,包括离子及化合物的外观特征、溶解度、酸碱性、水解性质、氧化还原性和形成配合物的性质等
Phase equilibria including γ,γ',η,β and H in Ni-Al-Ti system were investigated by diffusion couple method and calculated with thermodynamic model.The ex