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Effect of Manganese Doping on Oxygen Storage Capacity of Ceria-Zirconia Mixed Oxides Weng Duan1,Liang Qing1,Wu Xiaodong1 (1.Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China) Abstract:CeO2-ZrO2-MnOx mixed oxide series were prepared by sol-gel method. CO pulse and CO-O2 cycle measurements were carried out to examine......
with stirring speed, acid concentration, and leaching temperature. The experimental results indicate that the dissolution rate is of mixed control via hydrogen ion [H+] action, with reaction order of 0.813... evaluated. Key words: kaolin; alum; sulphuric and fluosilicic acid; leaching; kinetic model; mixed control 1 Introduction Alum, a colourless to white crystalline substance is a constituent of the mineral......
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Study on Simultaneous Catalytic Reduction of Sulfur Dioxide and Nitric Oxide on Rare Earth Mixed Compounds Hu Hui1,Wang Shuxia1,Zhao Quanzhong1,Zhang Xiaoling1,Li Jin1 (1.School of Environmental... reduction of SO2 and NO. Key words:rare earth mixed compound; desulfurization; denitrification; catalytic reduction; [全文内容正在添加中] ......
J. Cent. South Univ. (2020) 27: 242-255 DOI: https://doi.org/10.1007/s11771-020-4292-3 Finite element analysis of road structure containing top-down crack within asphalt concrete layer Pirmohammad..., only the opening mode is observed, and between these positions, both the opening and shear deformation modes (i.e., mixed mode I/II) are observed at the crack tip. Key words: asphalt concrete; top......
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CexTi1-xO2 Mixed Oxides Supported CuO Catalyst for NO Reduction by CO 蒋晓原1,周仁贤1,吕光烈2,楼莉萍4,郑小明1,陈英旭4 (1.Institute of Catalysis, Hangzhou 310029, China;2.Analysis and Test Center;3. Zhejiang University, Hangzhou 310029, China;4.Department of Environment Engineering, Hangzhou 310029, China) Abstract:CexTi1-xO2 mixed oxides of different mole ratios (x=0, 0.1, 0.2~0.9, 1.0) were prepared by co......
Hybrid particle swarm optimization with chaotic search for solving integer and mixed integer programming problemsTAN Yue(谭跃)1, 2, TAN Guan-zheng(谭冠政)1, DENG Shu-guang(邓曙光)2(1. School of Information... search method is proposed, and a hybrid algorithm combining particle swarm optimization (PSO) with this new method, called CLSPSO, is put forward to solve 14 integer and mixed integer programming......
Influence of processing parameters on microstructure and wear resistance of Ti+TiC laser clad layer on titanium alloy WU Wan-liang(武万良), SUN Jian-feng(孙俭峰), DONG Sheng-min(董胜敏), LIU Rong-xiang(刘荣祥.... Microstructure, microhardness and wear resistance of the clad layer were evaluated. The results show that the laser parameter has considerable influence on microstructure and wear resistance of laser clad......
Barrier Effect of Placenta Membrane of Pregnant Rat on Mixed Rare Earth Changle 李树蕾1,陈辉1,周莉1,聂毓秀1,黄可欣1 (1.Department of Histology and Embryology, School of Basic Medical Sciences of Jilin University, Changchun 130021, China) Abstract:To assess the potential health risks of mixed rare earths Changle for human embryo, whether it crosses placenta membrane or placenta barrier should be determined......