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Two-echelon inventory model with service level constraint and controllable lead time sensitive to order quantityLI Guo(李果)1, GUAN Xu(关旭)2, LIU Meng-qi(刘梦麒)3, SHAN Mi-yuan(单汩源)3(1. School... University, Changsha 410082, China)Abstract:The decision-making and optimization of two-echelon inventory coordination were analyzed with service level constraint and controllable lead time sensitive......
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Article ID: 1003-6326(2005)06-1242-06 Microstructure and properties of cutting magnesium-brass containing no lead HUANG Jin-song(黄劲松)1, PENG Chao-qun(彭超群)1, ZHANG Si-qi(章四琪)2, HUANG Bai... University, Changsha 410083, China) Abstract: A new environmental friend cutting brass containing magnesium instead of lead was produced by casting, extruding and drawing. Its microstructure was observed......
-phase flow; Eulerian-Eulerian two-fluid model; multiple reference frame method 1 Introduction With the continuous development of the zinc smelting industry and the continuous increase in the demand... on the characteristics of the rotation of the impellers in the stirred tank, the multiple reference frame (MRF) method is used to set the area where the double-layer impellers are located as the dynamic......
ARTICLE J. Cent. South Univ. (2019) 26: 2175-2184 DOI: https://doi.org/10.1007/s11771-019-4164-x A pre-warning system of abnormal energy consumption in lead smelting based on LSSVR-RP-CI WANG Hong... studies on the lead smelting industries which usually have a huge energy consumption are rarely reported. Therefore, a pre-warning system was established in this study based on the intelligent prediction......
Self-polymerization and co-polymerization kinetics of lead methacrylateYu-Juan Zhang1,Xin-Tao Guo2,Chun-Hong Wang1,De-Feng Wu1,Ming Zhang11. School of Chemistry and Chemical Engineering,Yangzhou...(XRD) were used to characterize the molecular and crystal structure of lead methacrylate [Pb(MAA)2] which was produced by the double decomposition reaction of lead oxide and methacrylic acid.Isothermal......
Novel thermal expansion of lead titanateXING Xianran, DENG Jinxia, CHEN Jun and LIU GuirongDepartment of Physical Chemistry, University of Science & Technology Beijing, Beijing 100083, China摘 要:<正> Lattice parameters of lead titanate were precisely re-determined in the temperature range of -150-950℃ by high precision XRPD measurements......
Serret-frenet frame based on path following control for underactuated unmanned surface vehicles with dynamic uncertaintiesLIAO Yu-lei(廖煜雷)1, ZHANG Ming-jun(张铭钧)1, 2, WAN Lei(万磊)1(1. Science...)Abstract:The path following problem for an underactuated unmanned surface vehicle (USV) in the Serret-Frenet frame is addressed. the control system takes account of the uncertain influence induced......
Reliability and sensitivity of bogie frame of high-speed train with strength degradationLü Hao(吕昊)1, ZHANG Yi-min(张义民)1, ZHANG Xu-fang(张旭方)1, LU Hao(卢昊)2(1. School of Mechanical Engineering... frame is a key mechanical component in a train system. The reliability analysis of the bogie is necessary to the safety of high-speed train. Reliability analysis of a bogie frame was considered......
