共搜索到8280条信息，每页显示10条信息，共828页。用时：0小时0分0秒639毫秒
Reinforcement strength reduction in FEM for mechanically stabilized earth structuresXUE Jian-feng(薛剑峰)1, 2, CHEN Jian-feng(陈建峰)1(1. Key Laboratory of Geotechnical and Underground Engineering... stabilized earth (MSE) structures can be analyzed either using limit equilibrium method (LEM) or strength reduction method (SRM) in finite element/difference method. In LEM, the strengths......
J. Cent. South Univ. (2021) 28: 1305-1315 DOI: https://doi.org/10.1007/s11771-021-4698-6 Porous layered La0.6Sr0.4Co0.2Fe0.8O3 perovskite with enhanced catalytic activities for oxygen reduction XU... sol-gel method (5.08 m2/g). The oxygen reduction reaction activity of the oxide in 0.1 mol/L KOH solution was studied using a rotating ring-disk electrode. In the tests, the initial potential of 0.88......
Preparation of copper nanoparticles by chemical reduction method using potassium borohydride ZHANG Qiu-li(张秋利)1, YANG Zhi-mao(杨志懋)2, DING Bing-jun(丁秉钧)2, LAN Xin-zhe(兰新哲)1, GUO Ying-juan(郭莹娟)1... by chemical reduction method using potassium borohydride as reducing agent. The effects of reactant ratio, concentration of CuSO4, reaction temperature, and dispersant on the size of product and conversion......
J. Cent. South Univ. Technol. (2008) 15: 20-24 DOI: 10.1007/s11771-008-0005-z Resistance optimization of flexes in aluminum reduction cells LI Jie(李 劼), LIU Jie(刘 杰), LIU Wei(刘 伟... connecting with the cathode bus bar in aluminum reduction cells were generalized as three modes. In each mode the universal method to select proper resistivity of the flexes was induced respectively to insure......
was not in agreement with the previous observations in oxygen reduction electro- catalysis on highly dispersive platinum[12], indicating that the examination of thin-film Pt catalysts can give novel insights... Preparation of nano-platinum and its catalytic activity toward methanol oxidation and oxygen reduction HUANG You-ju(黄幼菊), DAI Hong-hai(戴宏海), LI Wei(李 伟), ZHANG Qing-long(张庆龙), ZHAO Ling-zhi(赵灵智......
J. Cent. South Univ. (2012) 19: 2291-2296 DOI: 10.1007/s11771-012-1274-0 Action rules of H2 and CO in gas-based direct reduction of iron ore pellets YI Ling-yun(易凌云)1, HUANG Zhu-cheng(黄柱成)1, PENG Hu... University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: The gas-based direct reduction of iron ore pellets was carried out by simulating the typical gas composition in coal gasification......
J. Cent. South Univ. (2021) 28: 48-57 DOI: https://doi.org/10.1007/s11771-021-4585-1 Production of titanium powder by metallothermic reduction of TiO2 in cold pressed pellets ZHENG Hai-yan(郑海燕)1, 2... titanium (Ti) with high productivity, fundamental studies on producing metallic Ti from titanium dioxide (TiO2) in the cold pressed pellets were conducted by metallothermic reduction with an indirect......
......
drained aluminum reduction cell LI Xiang-peng(李相鹏)1, 2, LI Jie(李劼)2, LAI Yan-qing(赖延清)2, CHEN Jiang(陈江)1, GAO Zeng-liang(高增梁)1, LIU Ye-xiang(刘业翔)2 1. College of Mechanical Engineering, Zhejiang...; Abstract: Current distribution in a drained aluminum reduction cell is critical due to its influence on the current efficiency, electrolysis stability, anodes and cathodes integrity. A finite......
in MgCl2-SrCl2-KCl melts with MgCl2 concentrations of 2%, 5% and 10% (mass fraction), respectively. Key words: molten salt electrolysis; Mg-Sr alloy; electrochemical reduction 1 Introduction Sr can be used... alloy. The main methods to produce Mg-Sr alloys are mixed method and melt-immerse reduction. The mixed method can be used in the preparation of Mg-Sr alloys, but it needs preparation of metal Mg and Sr......
