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criterions is the same in the σ (normal stress) - τf (shear strength) axes coordinate system. Therefore, in the linear EMC strength criterion, the effect of actual shear strength of the slip surface... strength criterion 3.1 Assumption of stresses on slip surface As shown in Fig. 1, the xy axes coordinate system is established with its origin at the slope toe. A and B are the lower and upper sliding points......
°. The xy-axes coordinate system was established by setting slope toe as the origin. In Fig. 2, points A and B, respectively, are the lower and upper sliding points of slip surface... of external load on slope stability, i.e., mode I in which the external load is thought to act on slope surface, and mode II in which the external load is thought to act on slip surface along the force......
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Thermodynamic description of Au-Ag-Si ternary system WANG Jiang(王 江), LIU Hua-shan(刘华山), LIU Li-bin(刘立斌), JIN Zhan-peng(金展鹏) School of Materials Science and Engineering, Central South University...; Abstract: Based on the available experimental information, the Ag-Si binary system was thermodynamically assessed using the CALPHAD method......
J. Cent. South Univ. (2012) 19: 994-1001 DOI: 10.1007/s11771-012-1102-6 Industrial shape detecting system of cold rolling strip YANG Li-po(杨利坡)1, 2, YU Bing-qiang(于丙强)1, 2, DING Dong(丁栋)1, 2, LIU... Science and Technology, Yanshan University,Qinhuangdao 066004, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: A high-precision shape detecting system......
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Effect of cerium on microstructure and mechanical properties of Sn-Ag-Cu system lead-free solder alloys ZHAO Xiao-yan(赵小艳), ZHAO Mai-qun(赵麦群), CUI Xiao-qing(崔小清), XU Tian-han(许天旱), TONG Ming-xin... is also obviously improved even up to 15.7%. In sum, the optimum content of Ce is within 0.05%-0.1 %. Key words: Sn-Ag-Cu system; lead-free solder alloy; melting point; spreading property; mechanical......
J. Cent. South Univ. (2016) 23: 1132-1141 DOI: 10.1007/s11771-016-0363-x Frictional characteristics of granular system under high pressure Cao Miao-yan(曹秒艳)1, Peng Ya-xin(彭雅新)2, Zhao Chang-cai(赵长财)2... of the internal friction coefficient of the granular system under different normal pressures were obtained by self-designed shear test. By the granule volume compression test, the accurate discrete element......
for the design of engine control units (ECU). Together with a proportional-integral controller, a feed-forward and feedback control scheme is often adopted for automotive engine management system (EMS... cruise system of automotive engine. The results show that the tracking of engine speed command and the regulation of air/fuel ratio (AFR) can be achieved simultaneously under the new scheme. The mean......