Supply Chain Cooperation between Coal Enterprise and Electric Power Enterprise in China

Based on the two-stage Stackelberg game method, value creation of supply chain cooperation between coal enterprise and power utilities is studied by formulating profit functions of coal and power enterprises and calculating the maximum profit. According to the analysis, it is found that the profit from supply chain cooperation between coal and power enterprises is more than that of non- cooperation. The cooperation is validated to be beneficial for both units; however, the profit is mainly taken by the power enterprise. Thus, it is necessary to set up the incentive mechanism to distribute cooperation value between coal and power enterprises to promote their continual cooperation.     

天津地铁4号线扩能方案比较与分析

在城市轨道交通规划、设计中,存在客流量预测的不确定性,当出现较大的客流量变化时,需要对线路的初始设计能力进行扩大调整。以天津地铁4号线扩能设计为例,提出采用A型车6辆编组和B型车8辆编组方案,并对2种方案从运能、乘车舒适度、增加投资、资源共享等方面进行对比与分析,优选推荐采用6辆B型车编组方案,预留扩大到8辆编组的工程条件。     

新时期国有企业党员教育实效性分析——以青岛城运控股公交集团为例

近年来,青岛公交集团党委坚持把学习贯彻习近平新时代中国特色社会主义思想贯彻到一线、落实到基层,教育引导广大党员干部职工不忘初心、牢记使命,进一步发挥党员教育在增强党支部凝聚力、向心力,保持党的先进性、纯洁性方面的作用。     

智能汽车横向运动控制关键技术及现状

智能汽车通过良好的运动控制效果达到自主行驶的目的,智能汽车的横向运动控制是保障行驶稳定性的前提。阐述基于比例-积分-微分(proportion integration differentiation,PID)控制、模型预测控制(model predictive control, MPC)及滑模变结构控制等现阶段汽车横向运动的主要控制方法,说明每种控制方式的实际应用,探讨其各自的优缺点及适用范围,指出汽车横向运动控制方式的发展方向。研究意义在于面对智能汽车不同的行驶环境和控制精度要求,选用优良的控制方式使得智能汽车安全、可靠的自主行驶。研究成果对智能汽车横向运动控制系统的研发具有一定的借鉴价值。