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Effect of stoichiometric ratio upon electrochemical properties of AB5-type alloys YU Li-min(于丽敏), JIANG Wen-quan(蒋文全), JIANG Li-jun(蒋利军), FU Zhong-zhen(傅钟臻), ZHANG Wen-guang(张文广) General Research Institute for Nonferrous Metals, Beijing 100088, China Received 20 April 2006; accepted 10 June 2006 Abstract: In order to evaluate the effect of stoichiometric ratio upon......
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J. Cent. South Univ. (2016) 23: 2669-2675 DOI: 10.1007/s11771-016-3328-1 Mass ratio design based on compaction properties of backfill materials LI Meng(李猛), ZHANG Ji-xiong(张吉雄), HUANG Peng(黄鹏), GAO... Berlin Heidelberg 2016 Abstract: The backfill-mining mass ratio is the ratio of the mass of the backfill materials in the goaf to the mass of the produced raw coal during solid backfill mining......
J. Cent. South Univ. (2021) 28: 1534-1545 DOI: https://doi.org/10.1007/s11771-021-4713-y Improved designed method of pervious concrete based on optimal volume ratio of paste to aggregate BA Ming... concrete. The improved design method is mainly based on the optimal volume ratio of paste to aggregate (VRPA), which was determined by testing the average thickness of cement paste coating aggregate......
Warm hydroforming of magnesium alloy tube with large expansion ratio LIU Gang(刘 钢), TANG Ze-jun(汤泽军), HE Zhu-bin(何祝斌), YUAN Shi-jian(苑世剑) School of Materials Science and Engineering, Harbin... alloy tubular part with a large expansion ratio. Effects of temperature on the mechanical properties and formability were studied by uniaxial tensile test and hydraulic bulge test. Total elongation......
J. Cent. South Univ. Technol. (2007)06-0838-04 DOI: 10.1007/s11771-007-0159-0 Dynamic experiment and numerical simulation of solute transmission in heap leaching processing LIU Jin..., China) Abstract: Solute transmission in saturated ore heap was studied numerically and experimentally. The convection-diffusion equation (CDE) used to describe the mass transportation in porous......
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, Yanshan University, Qinhuangdao 066004, China)Abstract:An improved whole model of beam pumping system was built. In the detail, for surface transmission system (STS), a new mathematical model... frequency curve, and the system efficiency is sensitive to motor power, pump diameter, stroke number, ratio of gas and oil, and submergence depth. The simulation results have important significance......
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