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物流的转型--供应链管理 总被引:2,自引:0,他引:2
与物流相比,供应链管理更能够给企业带来巨大的经济效益。因此,对供应链管理的进一步研究具有现实的意义。 相似文献
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Over the past decades there has been a considerable development in the modeling of car-following (CF) behavior as a result of research undertaken by both traffic engineers and traffic psychologists. While traffic engineers seek to understand the behavior of a traffic stream, traffic psychologists seek to describe the human abilities and errors involved in the driving process. This paper provides a comprehensive review of these two research streams.It is necessary to consider human-factors in CF modeling for a more realistic representation of CF behavior in complex driving situations (for example, in traffic breakdowns, crash-prone situations, and adverse weather conditions) to improve traffic safety and to better understand widely-reported puzzling traffic flow phenomena, such as capacity drop, stop-and-go oscillations, and traffic hysteresis. While there are some excellent reviews of CF models available in the literature, none of these specifically focuses on the human factors in these models.This paper addresses this gap by reviewing the available literature with a specific focus on the latest advances in car-following models from both the engineering and human behavior points of view. In so doing, it analyses the benefits and limitations of various models and highlights future research needs in the area. 相似文献
24.
徐华 《广东交通职业技术学院学报》2011,10(3):122-125
分析广东省高职院校图书馆信息资源共建共享的必要性、可行性及当前所面临的问题,并提出信息资源共建共享的基本对策。 相似文献
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Seaport operations are highly important for industries which rely heavily on imports and exports. A reliable evaluation of port risks is essential to govern the normal running of seaborne transportation and thus the industrial economies. The occurrence of a breakdown in the trade facilitators, such as ports, will disrupt the smooth flow of supply chains for the industries. The estimation of the economic loss for an industry when a port gets disrupted is a challenging task as the relationship between the port and industry clusters is complex. This study aims to develop a systematic framework for performing economic loss estimation of industry clusters due to port disruptions. The whole risk assessment is split into three stages focusing on the establishment of a network flow model, economic estimations and evaluating risk mitigation strategies. The proposed idea is demonstrated by a case study on Shenzhen port and its related manufacturing industries. A dynamic inventory control strategy used by manufacturers is found to be beneficial for mitigating port disruption risks. 相似文献
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中等城市出租车保有量适量性研究 总被引:2,自引:0,他引:2
为了中等城市公交系统的协调发展、居民出行的便利,论证交通方式分担与城市出租车保有量的关系,分别对选择对象、选择结果、固有哑元、出行时间等参数进行分析,并且给出模型的计算方法与参数检验方法;结合空载率的计算公式进行补充论证。研究结果表明:该方法既可以对目前城市所需要的出租车保有量进行测算,也可以对规划年份出租车保有量进行预测,对保证城市出租车的有序与提供良好服务之间的协调发展提供理论依据。 相似文献
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唐春鹏 《城市轨道交通研究》2016,(1)
以《地铁设计规范》为依据,从车辆运用及维修角度,论述了城市轨道交通网络化运营条件下车辆基地的资源共享,包括车辆检修、段场共址建设、综合维修、物质供应和管理、技术培训、专用设备等方面的资源共享原则和注意事项。车辆基地资源共享不仅可满足车辆检修维保的功能需要,同时可有效避免或减少重复建设,节省工程投资,并提高资源利用效率,降低运营成本。 相似文献
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对地铁车站低压配电EPS(应急照明电源装置)设计及供电系统交直流操作电源设计方案进行了总结。经过对现有EPS与变电所交直流操作电源合并及分开设置方案进行经济技术性比较,综合考虑可靠性、运营管理便利性、系统综合维护成本后,推荐EPS与变电所操作电源分开设置方案。 相似文献
30.
Richard G. Hildreth 《Coastal management》2013,41(3):171-191
Abstract Section 8(g) was added to the Outer Continental Shelf Lands Act (OCSLA) in 1978. It mandated sharing of the revenues from tracts that included oil and gas pools underlying the federal‐state boundary 3 miles offshore. Revenues were to be split based on agreements negotiated by the secretary of Interior and the relevant coastal state governor or “fair and equitable”; divisions made by the federal district courts. Only one agreement was concluded. Texas and Louisiana sued to force distribution of their shares of $6.1 billion in 8(g) funds held in escrow. In 1986 Congress divided the escrowed 8(g) revenues approximately 27 percent to the adjacent states and 73 percent to the federal government and legislated the same split for all future 8(g) revenues. This article examines the complex issues that section 8(g), as amended, raises for the management of federal and state submerged lands. Cooperative federal‐state approaches to implementing amended section 8(g) are reviewed. Section 8(g)'s broader implications as the only federal‐state ocean resource, revenue‐sharing mechanism currently in place also are addressed. 相似文献