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-elements in coal fly ash by inductively coupled plasma mass spectrometry XIE Hua-lin(谢华林)1,2, TANG You-gen(唐有根)1, LI Yu-jie(李玉杰)1, LI Li-bo(李立波)2 (1. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; 2. Department of Chemistry, Hunan Institute of Technology, Hengyang 421008, China) Abstract: The contents of Cr, Cu, Ni, As, Cd and Pb in coal fly ash......
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Analysis of stability of coal pillars with multi-coal seam strip miningZHANG Li-ya, DENG Ka-zhong, ZHU Chuan-guang, XING Zheng-quan(Jiangsu Key Laboratory of Resources and Environmental Information..., the researches on the laws of the geological mining factors to upper and lower pillar’s stability are still deficient in multi-coal seam strip mining at present. Based on the three dimension fast Lagrangian......
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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...-Verlag GmbH Germany, part of Springer Nature 2021 Abstract: Residual coal pillars play an important role in mining the adjacent coal seam safely, managing the gobs and maintaining the stability......
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, 2015, 25(2): 280-292. [3] AMER M A, P A, RENOU S J, GUGLIELMOTTI M B. Use of human fascia lata in rat calvarial bone defects[J]. Acta Odontol Latinoam, 2015, 28(3): 231-235. [4] KOKUBO T, YAMAGUCHI... N W, HEINL P, BORDIA R K, C, FERNANDES R J. Maintenance of a bone collagen phenotype by osteoblast-like cells in 3D periodic porous titanium (Ti-6Al-4V) structures fabricated by selective electron......
High temperature dephosphorization behavior of monazite concentrate with charred coal XING Peng-fei(邢鹏飞), ZHUANG Yan-xin(庄艳歆), TU Gan-feng(涂赣峰), GUO Jing(郭 菁) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China Received 17 December 2009; accepted 27 April 2010 Abstract: Dephosphorization behavior of monazite concentrate with charred coal at high temperature......
The Stability Analysis of Implants Installed in Osteotomies with Different Types of Controlled Bone Defects周聪1,2,YU Lingmin2,DONG Chen2,CONG Liyao3,SHI Hongbing3,JUN Sangho1,KWON Jongjin1,JIANG Ling2...="ChDivSummary">The stability parameters of implants(ITV, ISQ & PTV) according to different sizes of controlled bone defects made in implant osteotomies were analyzed and the correlation among the three......