共搜索到10728条信息,每页显示10条信息,共1073页。用时:0小时0分0秒296毫秒
and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China) Abstract: In order to improve the coal recovery ratio and reduce energy consumption, three types of coal ploughs were presented and their structure parameters were studied respectively using the discrete element method (DEM). The results show that the recovery specific energy and coal recovery ratio of the spiral......
DYNAMIC MODEL AND SIMULATION OF EAF STEELMAKING PROCESS Q.Li1,X.Hong1 (1.Shanghai Enhanced Laboratory of Ferrometallurgy, Shanghai University, Shanghai,200072, China) Abstract:Based on mass and energy balances and theories of thermodynamics and kinetics, a dynamic model in conjunction with relative operation parameters was derived. With this model, the EAF process in later stage of scarp......
DYNAMIC MIXED MODE FRACTURE INITIATION IN ROCK+Li Zhenzi; Liu Youwen; DU Hui; Xu Jicheng; Zhang Jinyi; Sun Zongqi(Department of Architectural Engineering, Central South University of Technology, Changsha, 410083, China)Abstract:In this paper, a distortion dynamic strain energy density factor criterion for dynamic mixed-mode fracture initiation in rock is suggested.The results of the investigation......
......
evolution of 7075 Al alloy during hot deformation. The results show that the stress-strain curves under the experimental conditions belong to the type of dynamic recovery. The microstructure undergoes... size of the deformed material increases. Key words: 7075 Al alloy; microstructure evolution; dynamic recovery; hot deformation  ......
NAND flash service lifetime estimate with recovery effect and retention time relaxationBU Kai(步凯)1, 2, CHEN Yi-ran(陈怡然)1, XU Hui(徐晖)2, YI Wei(易伟)2, XIE Qi-you(谢启友)2(1. Department of Electrical...:A service life model of NAND flash and threshold voltage shift process is proposed to calculate the service life and endurance. The relationships among achievable program/erase (P/E) cycles, recovery time......
J. Cent. South Univ. (2017) 24: 1082-1089 DOI: 10.1007/s11771-017-3511-z Comprehensive recovery of Fe, Zn, Ag and In from high iron-bearing zinc calcine PENG Bing(彭兵)1, 2, PENG Ning(彭宁)1, LIU Hui(刘恢... the generation of zinc iron solid solution (Fe0.85-xZnxO), which can bring a decrease of iron recovery in magnetic separation. After roasting, acid leaching and multistage magnetic separation are carried out......
J. Cent. South Univ. Technol. (2010) 17: 750-754 DOI: 10.1007/s11771-010-0551-z Two-step flotation recovery of iron concentrate from Donganshan carbonaceous iron ore YIN Wan-zhong(印万忠)1, HAN Yue... siderite efficiently in neutral conditions. The flotation recovery of pure hematite, siderite, and quartz in the oleate-starch-CaCl2 system is significantly different when the slurry pH varies from 4 to 12......
Dynamic formation control for autonomous underwater vehiclesYAN Xue-feng(燕雪峰)1, GU Feng(古锋)2, SONG Chen(宋琛)1, HU Xiao-lin(胡晓琳)3, PAN Yi(潘毅)3(1. College of Computer Science and Technology, Nanjing.... In this work, a dynamic formation model was proposed, in which several algorithms were developed for the complex underwater environment. Dimension changeable particle swarm algorithm was used to find......
......