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Key technology of mine underground mobile positioning based on LiDAR and coded sequence patternWANG Zhi1, 2, WU Li-xin1, 2, LI Hui-ying3(1. College of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; 2. Academy of Disaster Reduction and Emergency Management, Ministry of Civil Affairs and Ministry of Education, Beijing Normal University, Beijing 100875, China; 3......
J. Cent. South Univ. (2016) 23: 1439-1448 DOI: 10.1007/s11771-016-3196-8 Sequence of densification and hydrocarbon charging of Xu2 reservoir in Anyue–Hechuan area, Sichuan Basin, China CHEN Cong(陈聪... Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: The sequence of the densification and hydrocarbon charging of the Xu2 reservoir in the Anyue–Hechuan area......
sequence of hydrogen reduction of WO3 is WO3→WO2.9→W18O49→WO2→W. The step of WO2→W is the critical step which determines the grain size of tungsten powder. The partial pressure (pH2O/pH2) of H2O within..., 40 mA and 2.3 (?)/min. The morphological changes during reduction sequence were studied using SEM (scanning electronic microscope). 3 Results and discussion 3.1 Phase composition of products......
000 ℃ in 6.5 min. The reduction degree of iron is controlled by both the reductive agent content and the microwave heating time, and the reduction follows Fe2O3→Fe3O4→FeO→Fe sequence. Sulphuric acid...) The reduction of iron oxide follows Fe2O3→Fe3O4→FeO→Fe sequence, and is a step-by-step reaction. Both the reduction agent content and the microwave heating time affect the reduction degree of laterite. 3......
, and the corresponding reduction coefficient is the minimum factor of safety for shallow tunnel at the time. The detailed process is as follows: Fn denotes a sequence of numbers from F1 to Fn, so Cn...J. Cent. South Univ. Technol. (2009) 16: 1001-1005 DOI: 10.1007/s11771-009-0166-4 Stability analysis of shallow tunnels subjected to seepage with strength reduction theory YANG Xiao-li (杨小礼......
J. Cent. South Univ. (2012) 19: 1813-1816 DOI: 10.1007/s11771-012-1213-0 Carbothermic reduction of alumina with carbon in vacuum YU Qing-chun(郁青春), YUAN Hai-bin(袁海滨), ZHU Fu-long(朱富龙), ZHANG... Berlin Heidelberg 2012 Abstract: Carbothermic reduction alumina in vacuum was conducted, and the products were analysed by means of XRD and gas chromatography. Thermodynamic analysis shows......
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Architecture of volcanic sequence and its structural control of Yingcheng Formation in Songliao BasinCHENG Ri-hui(程日辉)1, WANG Teng-fei(王腾飞)1, SHEN Yan-jie(沈艳杰)1, REN Yan-guang(任延广)2(1. College... of Yingcheng Formation in the outcropped area of the southeast margin and in Xujiaweizi fault depression and its distribution based on analysis of seismic data, shows that the sequence of volcanic......
J. Cent. South Univ. (2012) 19: 1388-1398 DOI: 10.1007/s11771-012-1155-6 Application of sequence stratigraphy to Triassic terrestrial strata in Tahe area of Tarim Basin LIU Chen-sheng(刘辰生)1,2..., sedimentary structures and well logging data, and are closely related to the changes in lacustrine level. In accordance with the basic principle of sequence subdivision, seven type-I boundaries can......
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