论速度经济下的价值链管理创新

从速度经济时代的现实出发,运用企业动态竞争优势和价值链管理理论,分析了竞争优势的传统价值链管理,指出了传统价值链管理的内涵与局限,提出了价值链管理的理论演化,构建了动态价值链管理的五大模式。     

Responsive contingency planning in supply risk management by considering congestion effects

Contingency rerouting is known as a cost-effective risk management strategy for major disruptions such as earthquakes and natural disasters. The objective of this paper is to develop a decision-making tool to determine the appropriate response speed of a volume-flexible backup supplier to improve the supply chain responsiveness. We propose a mixed integer programming (MIP)-based capacity planning tool which generates the contingency plan of the supply chain subject to random disruptions. In order to make an accurate decision, the impact of critical operational characteristics such as response time and congestion are considered in a disruption scenario. The appropriate response speed is selected through a decision tree analysis by minimizing the expected supply chain costs. The selection is made with respect to three different attitudes of the decision maker towards risk. In order to evaluate the impact of the different failure and recovery probabilities over the selection process, a sensitivity analysis is presented. The results show that considering congestion is especially critical for risk-neutral decision makers in mitigating against disruptions.     

加快河南省高等教育发展的社会基础分析

文章从现有河南省社会经济发展水平，产业结构演变趋势，社会公众对高等教育需求愿望和支付能力，河南省高等教育自身智力贮备等方面进行了分析探讨，认为快速发展河南省高等教育已具备了很好的社会基础。河南省高等教育应在规模、速度以及质量和层次上来一次革命性的历史突破。     

新形势下我国高铁施工风险管理及对策

钢 混凝土组合深梁填充钢框架是一种新型抗侧力结构体系。用有限元分析软件SAP2000对6层钢框架和6层钢框架填充组合深梁进行了动力非线性时程分析，得到结构的顶点位移、基底剪力、层间位移角、楼层位移及塑性铰发展情况。通过对比分析发现，钢框架内填深梁以后，结构刚度和承载能力增强，且深梁首先破坏，保证钢框架安全，充分起到了抗震第一道防线的作用。     

我国各区域服务业发展水平比较研究

我国各区域服务业发展水平差异较大。从发展规模、增长速度、行业结构、经济效益、对外开放程度等方面对我国服务业区域发展水平进行比较研究,有利于准确判断服务业在各区域的发展差异及其程度,为相关部门制定正确的区域服务业发展政策与战略提供信息支持。     

新型上出风空调器夏季温度场和速度场的实验研究

研制了一种新型上出风空调器以提高挂壁式空调房间的热舒适性，并将其与传统挂壁式空调器进行了温度场和速度场的实验对比研究．实验结果表明，新型上出风空调器明显改善了室内的热舒适性．     

Simulated real-time detection of multiple structural changes: Evidence from Japanese economic growth

An efficient treatment of practical issues on detecting multiple structural changes is presented. The efficacy of this method is examined by comparing the conventional hypothesis-testing method via comprehensive simulations and empirical applications. The method recommended is a model-selection using the Bayesian information criterion and allowing for heteroscedasticity. Empirical results show that the first structural change of Japanese economic growth occurred in 1974Q2, which was detected in 1979Q4, and that the second structural change occurred in 1992Q2, which was detected in 1998Q1. Two advantages of the model-selection method compared to the hypothesis-testing method are also discussed.     

控制系统设计中的满意优化原理

从矛盾指标问题的求解出发，提出了满意解的折衷优化原理。通过分析指标间的速度型矛盾度和速度型接近度来确定各指标的折衷权值，并将求得的折衷权值代入总体满意度函数进行满意优化设计。以二阶欠阻尼控制系统的设计为例，优化出系统的最佳阻尼比。     

试述如何提高学生的英语阅读效率

文章根据《大学英语教学大纲》对英语阅读能力所提出的要求 ,针对非英语专业学生英文阅读速度慢 ,正确率低的问题 ,提出了改进公共外语阅读教学 ,提高学生阅读效率的方法     

工科院校强化大学生人文素养培育的思考

以现有的高速铁路列车运行图资料为基础，通过对京沪线、武广线两条长大干线和京津、沪宁、沪杭三条城际客专的列车运行图结构特征及其在时间轴上的分布进行统计分析，说明列车的速度等级、停站情况、A、B类列车的开行比例以及旅客列车在时间轴上的分布特征，分析了列车出发间隔时间服从的分布规律，对高速铁路通过能力计算方法以及客运产品设计提出了新要求。