共搜索到5361条信息，每页显示10条信息，共537页。用时：0小时0分0秒545毫秒
Trans. Nonferrous Met. Soc. China 22(2012) 1686-1692 Microstructure and properties of Al/Si/SiC composites for electronic packaging ZHU Xiao-min, YU Jia-kang, WANG Xin-yu State Key Laboratory... for electronic packaging were fabricated by gas pressure infiltration. On the premise of keeping the machinability of the composites, the silicon carbide particles, which have the similar size with silicon......
Consteel电炉二次燃烧控制技术张亚文1(1.宁夏回族自治区石嘴山市宁夏电投钢铁有限公司机动处)摘 要:以宁夏电投钢铁有限公司引进Consteel电炉为例,结合Consteel电炉工艺特点以及废钢在电炉中熔化和精炼时发生的化学反应阐述了Consteel电炉二次燃烧原理.Consteel电炉二次燃烧控制系统由操作站和PLC柜组成.以Simatic S7-400 CPU414-2 DP控制器为核心,基于Profibus网络和工业以太网进行数据通信.PLC控制程序采用Simatic Step 7编写,实现了预热段......
......
Dynamic Electronic Structure in Transition Metal Oxides Jiangong Li1,Haiying He1 (1.Department of Materials Science, Lanzhou University, Lanzhou 730000) 摘要:The isomer shift of La1-xCaxFeO3 decreases gradually from the value for trivalent iron to that for tetravalent iron, as the Ca content x increases from 0 to 1. This indicates that iron in La1.x-CaxFeO3 has an intermediate valence state......
A first-principles study on electronic structure and elastic properties of Al4Sr, Mg2Sr and Mg23Sr6 phases ZHOU Dian-wu, LIU Jin-shui, PENG Ping State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China Received 18 November 2010; accepted 29 March 2011 Abstract: The electronic structures and mechanical properties of Al4Sr, Mg2Sr......
; 文章编号:1672-7207(2011)01-0125-05 Characteristics of electronic localization and transportation in quasi-one-dimensional disordered systems... and transfer matrix method. The characteristics of electronic localization and transportation in quasi-one-dimensional disordered systems with several chains were discussed. The results indicate......
Trans. Nonferrous Met. Soc. China 22(2012) 1197-1202 First principles study of electronic structure, chemical bonding and elastic properties of BiOCuS PAN Liu-xian1, XIA Qing-lin2, YE Shao-long3...: The electronic structures, chemical bonding and elastic properties of the tetragonal phase BiOCuS were investigated by using density-functional theory (DFT) within generalized gradient approximation (GGA......
Trans. Nonferrous Met. Soc. China 22(2012) 286-390 Structural, magnetic and electronic properties of FeF2 by first-principle calculation YANG Zhen-hua1, 2, 3, WANG Xian-you1, 2, 3, LIU Li1, 2, 3, SU... to investigate the magnetic properties, electronic structure and bonding mechanism of FeF2. By calculating the lattice parameters and magnetic moment as a function of effective interaction parameter......
Electronic Transport Properties of La2/3Ca1/3Mn0.98Cu0.02O3 Sintered at Different Temperature胡清华School of Science, Wuhan University of Technology摘 要:electronic transport properties of double-peak resistance were investigated. X-ray diffraction pattern indicates that the samples are in perovskite structures and obey the Variable-Rang Hopping......
Influence of electronic structure on Compton scattering through comparing Cu-Ni alloys with Cu-Ni powder mixturesGuang LUO , Xianquan HU, Guangyu XIAO and Chunyang KONG College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 400047, China摘 要:The application fields of Compton scattering have been further broadened through......
