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mass due to the development of plastic zone and transfer of the maximum stress zone within the rock mass. Thirdly, the analytical critical depth for the occurrence of ZDP was obtained, which depended... is compressed, and the quasi-cylindrical intact zones form. Fig.8 Transfer of maximum stress zone within enclosing rock mass around deep round tunnel [15] The fracturing of the rock with the surfaces......
and particle size under control of mass transfer mechanism 图3所示为传质机制控制下的氧化铝溶解累积质量分数及粒径随时间的变化曲线.可以看出,氧化铝颗粒在20 s左右已经溶解了50%(质量分数),在60 s左右溶解了90%,剩余10%的氧化铝颗粒直到126 s才完全溶解.200 μm氧化铝颗粒完全溶解用时29.5 s,与1 mm结块颗粒完全溶解...机制控制下的氧化铝溶解质量及粒径随时间变化曲线 Fig. 3 Variations of mass of alumina dissolution and particle size with time under control of mass transfer mechanism 3.1.2 传质机制下氧化铝浓度分布 氧化铝颗粒的溶解致使电解质中氧化铝浓度升高,而传质机制......
Numerical Simulation of the Multicomponent Mass Transfer during Bridgman Growth of CdZnTe Crystal Using Maxwell-Stefan Diffusion Model殷利迎1,2,介万奇1,2,WANG Tao1,2,ZHOU Boru1,2,YANG Fan1,21. State Key... Polytechnical University摘 要:To reveal the complicated mechanism of the multicomponent mass transfer during the growth of ternary compound semiconductors......
J. Cent. South Univ. Technol. (2011) 18: 866-873 DOI: 10.1007/s11771-011-0775-6 Elastoplastic model for discontinuous shear deformation of deep rock mass WANG Ming-yang(王明洋)1, FAN Peng-xian(范鹏贤)1... Academy of Engineering Physics, Mianyang 621900, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: Deep rock mass possesses some unusual properties due......
behavior, resistivity and thermal infrared (TIR) characteristics of backfill mass under uniaxial compression were investigated. The monitoring system consisted of a TIR observation system, a stress...J. Cent. South Univ. (2016) 23: 2329-2335 DOI: 10.1007/s11771-016-3291-x Resistivity and thermal infrared precursors associated with cemented backfill mass XU Wen-bin(徐文彬)1, 2, HOU Yun-bin(侯运炳)1......
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Fabrication and wear behavior of CNT/Al composites JIANG Jin-long(姜金龙)1, WANG Hai-zhong(王海忠)2, YANG hua(杨华)1, XU Jin-cheng(徐金城)3 1. School of Science, Lanzhou University of Technology, Lanzhou... on the relative density, the hardness, and the friction and wear behavior of the composites under dry sliding condition were investigated using the ball (pin)-on-block tester. By scanning electron......
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J. Cent. South Univ. (2016) 23: 1603-1610 DOI: 10.1007/s11771-016-3214-x Mild and highly efficient transfer hydrogenation of aldehyde and ketone catalyzed by rubidium phosphate HUANG Yun-jing(黄云敬... for transfer hydrogenation. Rb3PO4 lost 70% of its active sites after adsorbing water, but the remaining was not affected. The reductions of aldehydes and ketones, when promoted by Rb3PO4, were allowed......