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the unstable displacement stage, rock spalling and further cascading collapse will occur. Key words: room-pillar system; physical model test; settlement; dynamic response; deformation 1 Introduction Pillars... et al [17] carried out a series of experiments and simulations to study the effects of mining activities on the deformation, failure and stress redistribution characteristics of the room-pillar......
and electromagnetism, C/C composites were fabricated by chemical vapor infiltration (CVI) in multi-factor coupling physical fields. The textural of pyrolytic carbons were observed by polarized light... of smaller molecule, the latter by taper growth model of bigger molecule. Key words: multi-factor coupling physical fields CVI; carbon/carbon composites; microstructure; growth model  ......
PHYSICAL SIMULATION OF CONTINUOUS ROLL CASTING PROCESS M.H. Huang1,J. Zhong1,X.Q.Li1,L.H. Zhan1 (1.College of Electronical-Mechanical Engineering, Central South University, Changsha 410083,China... behavior; physical simulation; constitutive relation; [全文内容正在添加中] ......
. Key words: magnesium alloys; extrusion-shearing process; grain refinement; physical simulator 1 Introduction As the lightest structural material of engineering, magnesium alloys have attracted... on the microstructure evolution of Mg alloys fabricated by ES process. The components of ES forming die were manufactured and installed to gleeble1500 thermo-mechanical simulator in this work. Physical simulations......
of siliceous cement gradually decreases from top to base. Carbonate cement and siliceous cement are detrimental to the development of the reservoir. Key words: clay mineral; cement; physical properties...生加大,从而使更多的原生粒间孔隙得以保存. 图3 须家河组黏土矿物体积分数与孔隙度,渗透率关系 Fig. 3 Relationship of clay minerals content and physical properties of Xujiahe Formation 表2 普陆1井碎屑颗粒成分(据镜下观察统计) Table 2  ......
J. Cent. South Univ. (2018) 25: 3085-3097 DOI: https://doi.org/10.1007/s11771-018-3976-4 Physical simulation test of soil-rock mixture from synthetic transparent soil DING Xiao-hua(丁小华)1, 2, ZHOU... is mixed with liquid paraffin and n-tridecane at a mass ratio of 4.4 at room temperature of 17℃. Physical and mechanical properties of transparent soil are determined by physical test and compared......
distribution of cutting waste were characterized. The Si-rich powders were obtained from the cutting waste using a physical sedimentation process, and then further purified by removing impurity using acid leaching. The effects of process parameters such as acid leaching time, temperature and the ratio of solid to liquid on the purification efficiency were investigated, and the parameters were......
Comparison of structure and physical fields in 400 kA aluminum reduction cellsDING Ji-lin(丁吉林), LI Jie(李劼), ZHANG Hong-liang(张红亮), XU Yu-jie(徐宇杰), YANG Shuai(杨帅), LIU Ye-xiang(刘业翔) (School... shows that all studied cells can satisfy with the physical field requirement, and the commercial applications also verify that the 400 kA cells have become the product of the mature and world’s......
Magnetic properties and large magnetocaloric effects of GdPd intermetallic compoundJianjun Huo1,Yusong Du1,2,Gang Cheng1,2,Xiaofei Wu1,2,Lei Ma1,2,Jiang Wang1,2,Zhengcai Xia3,4,Guanghui Rao1,21... by X-ray diffraction(XRD), scanning electron microscopy(SEM) and the physical property measurement system(PPMS). A large reversible magnetocaloric effect is observed in GdPd accompanied by a second......
Effects of Annealing Temperature on Cu-Doped ZnO NanosheetsYuliang Liu1,Junpeng Wang1,Chunhua Xu1,Zishu Si1,Shensheng Xu2,Sanqiang Shi31. Collaborative Innovation Center of Nonferrous Metal, School... Engineering, The Hong Kong Polytechnic University摘 要:The synthesis of Cu-doped ZnO nanosheets at room temperature was reported in our previous paper.The effects......