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Controlling limiting length of tunnels on Al foil electroetched in HCl-H2SO4 solution BAN Chao-lei(班朝磊), HE Ye-dong(何业东) Beijing Key Laboratory for Corrosion, Erosion and Surface Technology...; Abstract: The limiting length of tunnels, llim, of Al foil electro-etched in HCl-H2SO4 solution......
An in-motion initial alignment method aided by digital map MAO Yu-liang(毛玉良), HAN Yong-qiang(韩勇强), CHEN Jia-bin(陈家斌) (School of Automation, Beijing Institute of Technology, Beijing 100081, China) Abstract: The traditional in-motion initial alignment method obtains the gravity vector in inertial coordinate system twice while parking the land vehicle, and then work out the transformation matrix......
characteristics of mixed flow pump under different flange clearances PING Yuanfeng1, SHI Weidong1, 2,, LI Wei1, 3, JI Leilei1, LI Enda1, MA Lingling1 (1. Research Center of Fluid Machinery Engineering... University, Zhenjiang 212009, China) Abstract: In order to study the rotating stall characteristics of mixed-flow pump with different flange clearances,the internal flow field of the pump......
J. Cent. South Univ. Technol. (2011) 18: 2150-2156 DOI: 10.1007/s11771-011-0956-3 A new measuring method for maximal length, width and thickness dimensions of coarse aggregates DUAN Yue-hua(段跃华)1, 2... particle was represented by 60×120 discrete points conformably with spherical harmonics descriptor. The chord length and direction angles were determined by the calculation. With the major axis (L......
side in the transverse direction, the flange contact is more likely to occur, and the wheel-rail surface is prone to fatigue damage. The LM wheel has the best overall matching performance. Key words: wheel-rail profile; switch; equivalent conicity; contact patch; flange contact 随着我国社会经济的繁荣以及城市化进程的加快,城市人口数量剧增,近年来,我国高速铁路与城市轨道交通得到了较快的发展,并受到人们的持续关注,合理的轮轨型面匹配对保证行车安全,改善车辆运行平稳性,降低轮轨接触应力和轮轨磨耗,提高轮轨疲劳寿命等具有重要意......
Nickel co-deposition with SiC particles at initial stage TAN Cheng-yu(谭澄宇), LIU Yu(刘 宇), ZHAO Xu-shan(赵旭山), ZHENG Zi-qiao(郑子樵) College of Materials Science and Engineering, Central South... on the nucleation and growth of nickel deposition on copper matrix from acid sulphate solution. The surface morphology of Ni-SiC co-deposition at initial stage was observed with scanning electron microscope(SEM......
Experimental study on upward bubble velocity and pierce length distributions in a water model of copper converterBin Du, Jiayun Zhang, Tuping Zhou, and Qifeng ShuMetallurgical Engineering School... and the pierce length distributions in a sectional water model of the copper converter in Guixi Smelter in Jiangxi, China, were measured using a two-contact electro-resistivity probe. In the case of using a single......
Initial Activation of Hydrogen-Storage Alloy Electrode by Chemical Modification卢世刚,李群,路春,刘庆国,胡蓉晖,杨汉西摘 要:Ｔｈｅｍｉｓｃｈｍｅｔａｌ(Ｍｍ)ｈｙｄｒｏｇｅｎｓｔｏｒａｇｅａｌｏｙｓｈａｖｅｓｏｆａｒｂｅｅｎｓｕｃｃｅｓｆｕｌｙｄｅｖｅｌｏｐｅｄａｓａｈｉｇｈｃａｐａｃｉｔｙｎｅｇａｔｉｖｅｅｌｅｃｔｒｏｄｅｍａｔｅｒｉａｌｆｏｒｓｅｃｏｎｄａｒｙｂ...关键词:......
Atomic modeling for the initial stage of chromium passivationLi-nan Zhang1,2,3,Xi-lin Xiong1,2,Yu Yan1,2,Ke-wei Gao1,2,Li-jie Qiao1,2,Yan-jing Su1,21. Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing2. Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing3......
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