共搜索到15578条信息，每页显示10条信息，共1558页。用时：0小时0分0秒545毫秒
Mechanism and Influence Factors of V6O13 Synthesis林勤,杜垣胜,叶文,刘康,刘人敏,李晓云摘 要:<正> The mechanism and influence factors of thermal decomposition of NH4VO3 in Ar to produce V6O13were investigated by TG-DTG, DSC, X-ray diffraction and orthogonal design experiments at 25~450℃.Theprocess includes four reactions, among which the reduction of V2O5 by NH3......
COLOUR-CHANGING MECHANISM IN P2O5-Nb2O5-Li2O NONCRYSTALLINE SYSTEM崔万秋,阮立坚,陈丹平Wuhan University of Technology摘 要:<正> Raman, IR spectra, RDF and visible spectrum were used to study the glass structure and the valence states of niobium ions in P2O5-Nb2O5-Li2O noncrystalling system. The colour-changing mechanism was studied. For 10Nb2O5xP2O5(90-x)Li2O......
J. Cent. South Univ. (2016) 23: 3293-3301 DOI: 10.1007/s11771-016-3395-3 Collapse mechanism of deep tunnels with three-centered arch cross section LI Yong-xin(李永鑫), YAO Cong(姚聪) School of Civil... to different parameters. Furthermore, the effects of different parameters on the shape of detaching curve and the weight of the collapsing block are discussed. Key words: deep-buried tunnel; collapse mechanism......
NUMERICAL INVESTIGATION OF STRAIGHT-LINE LASER FORMING UNDER THE TEMPERATURE GRADIENT MECHANISM Z.Q. Yao1,J. Hu1,H. Shen1,Y.J. Shi1 (1.School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai 200030, China) Abstract:Laser forming is a new flexible and dieless forming technique. To achieve the high accuracy forming, the temperature gradient mechanism (TGM) is studied......
Mechanism of Thaumasite Formation in Concrete宋远明1,ZHOU Shaolong1,WANG Zhijuan1,WANG Bo1,钱觉时21. School of Environmental and Materials Engineering, Yantai University2. School of Materials Science and Engineering, Chongqing University摘 要:Significant efforts have been made in revealing the mechanism of thaumasite formation in concrete, which continues......
Purification mechanism of copper electrolyte by As(Ⅲ) XIAO Fa-xin(肖发新)1, 2, ZHENG Ya-jie(郑雅杰)1, WANG Yong(王 勇)1, JIAN Hong-sheng(简洪生)1, HUANG Xing-guan(黄兴远)2, MA Yu-tian(马玉天)1 1. School...; copper electrolyte; mechanism; antimony arsantimonate ......
Microwave absorbing mechanism of soft magnetic alloy Fe85Si2Al6Cr7 WANG Zhong-you(王忠友), JIANG Jian-jun(江建军), DENG Lian-wen(邓联文), ZHANG Chuan-kun(张传坤), ZHANG Tao-qi(张韬奇) Department of Electronic... the particle sizes milled are excessively small. Key words: microwave absorbing mechanism; complex permeability; complex permittivity; ball-milling time 1 Introduction With the high development......
......
J. Cent. South Univ. (2018) 25: 1447-1463 DOI: https://doi.org/10.1007/s11771-018-3839-z Mechanical properties and energy mechanism of saturated sandstones NIU Shuang-jian(牛双建)1, 2, 3, GE Shuang... with a constant. Saturation reduces the total absorption energy, dissipated energy, and elastic strain energy of rock samples. Key words: post-peak; saturation; strength property; damage mechanism; energy Cite......
CNFs have excellent oxidation resistance up to 857 ℃. And the graphitization mechanism including four stages was also proposed. Key words: carbon nanofibers; microstructure; graphitization; mechanism... material. The most interesting research is that NEXAFS can distinguish the sp2 or sp3 hybridized carbon materials[16]. In the end, the graphitization mechanism including four stages was also proposed. 2......
