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Nucleation barrier height in undercooled metallic meltsGang WANG,Dechang ZENG and Zhongwu LIU School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,China摘...,and the variation of nucleation barrier height in undercooled metallic melts with respect to undercooling was studied respectively based on two kinds of forms of local free energy density.The......
J. Cent. South Univ. (2021) 28: 1724-1736 DOI: https://doi.org/10.1007/s11771-021-4729-3 Stress-strain-acoustic responses in failure process of coal rock with different height to diameter ratios... of abandoned coal mines. The height to diameter ratio (H/D) affects the stability of residual coal pillars. In this study, uniaxial compressive tests of coal specimens with five H/D (2.0, 1.5, 1.0, 0.8 and 0.6......
J. Cent. South Univ. Technol. (2010) 17: 738-743 DOI: 10.1007/s11771-010-0549-6 Stress field evolution law of mining environment reconstructing structure with change of filling height CHEN...; Abstract: For improving global stability of mining environment reconstructing structure, the stress field evolution law of the structure with the filling height change of low-grade backfill......
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J. Cent. South Univ. (2016) 23: 3262-3272 DOI: 10.1007/s11771-016-3392-6 Mode of overlying rock roofing structure in large mining height coal face and analysis of support resistance WU Feng-feng(吴锋锋... Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: The mining space of large mining height coal face is large, the range of movement and caving of rock strata is large......
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Simulation of three-phase flow and lance height effect on the cavity shapeKai Dong1,Rong Zhu2,Wei Gao3,Fu-hai Liu21. School of Mechanical Engineering, University of Science and Technology Beijing2...) method. Numerical simulation results can reflect the actual molten bath surface waves impinged by the supersonic oxygen jets. With increasing lance height, the cavity depth decreases, and the cavity......
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face with super great mining height LI Meng(李猛), ZHANG Ji-xiong(张吉雄), HUANG Yan-li(黄艳利), GAO Rui(高瑞) School of Mines, Key Laboratory of Deep Coal Resource Mining of Ministry of Education of China,China... working faces with large mining heights on mine pressure manifestation, the key stratum at a working face was categorised using the 1313 top-coal caving face with super great mining height under cover......