共搜索到23800条信息,每页显示10条信息,共2380页。用时:0小时0分0秒693毫秒
J. Cent. South Univ. (2012) 19: 488-495 DOI: 10.1007/s11771-012-1030-5 Modified Fourier descriptor for shape feature extraction ZHANG Gang(张刚)1, MA Zong-min(马宗民)2, NIU Lian-qiang(牛连强)1, ZHANG Chun... features from modified Fourier descriptors are more discriminative than those from other Fourier descriptors. Key words: shape feature extraction; Fourier descriptors; centroid distance approach 1......
. The organic solution for impurities removal was prepared by dissolving appropriate 10%D2EHPA in 90% distilled kerosene, while the organic phase used for cobalt extraction was prepared by dissolving 25%P507... phase were performed with 3 mol/L HCl. The analysis of metal ions in the solution and solid samples was done with the Perkin-Elmer Model 800 atomic absorption spectroscopy(AAS). The analysis......
......
of liquid-solid reaction, diffusion of reactants to the interface and the diffusion of products from the interface also exist in the solvent extraction of metals from aqueous phase. Their rates depend... of extraction mechanism. The stirring speed was varied in the range of 70-110 r/min to examine the effect on extraction rate. The plots of cobalt concentration in organic phase vs time at each......
sufficient driving forces for Fe3B nucleation and growth. As a leading phase, Fe3B phase grows rapidly to form the solid-liquid interface, resulting in the enrichment of the second phase on the liquid... Phase selection in highly undercooled Fe-B eutectic alloy melts YANG Chang-lin(杨长林), YANG Gen-cang(杨根仓), LU Yi-ping(卢一平), CHEN Yu-zeng(陈豫增), ZHOU Yao-he(周尧和) State Key Laboratory......
J. Cent. South Univ. (2021) 28: 2179-2192 DOI: https://doi.org/10.1007/s11771-021-4761-3 Performance and mechanism of solid waste coking sulfur paste modified asphalt mixture before and after...,Taiyuan University of Technology, Taiyuan 030024, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract: For the resource utilization of the solid......
conductor based on SrCeO3 and its application to the extraction of hydrogen gas[J]. Solid State Ionics, 1985, 18-19(2): 1003-1009. [2]Iwahara H, Uchida H, Ono K, et al. Proton conduction in sintered...固体氧化物燃料电池的欧姆损失. 关键词: MCeO3固体电解质; 固体氧化物燃料电池; 水浓差电池 中图分类号: TM911.4 文献标识码: A Preparation and characterization of proton-conducting solid electrolyte doped by Zr4+ and Y3+ TAN Wen-yi, ZHONG Qin......
,pearlite and martensite were calculated.The influence of RE in solid solution on phase transformation of pearlite and recrystallization of martensite was explained by the valence electron structure data...Analysis of Valence Electron Structure of RE in Solid Solution in Medium and Low Carbon Steel 刘艳1,朱莹光1,刘伟东1,刘志林1 (1.Department of Material and Chemical Engineering,Liaoning Institute of Technology......
was prepared by using two-stage technique with solid oxides as raw materials. The crystallographic phase, microstructure, electric-properties and temperature stability of the system were studied...Properties of PMSZT Piezoelectric Ceramics near Morphotropic Phase Boundary Xu Mingxia1,Lu Cuimin1,LUO Yunfei1,Sun Qingchi1 (1.Key Laboratory for Advanced Ceramics and Machining Technology......
......