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921.
仿真在造船企业管子生产物流系统中的应用 总被引:2,自引:1,他引:2
以某造船企业管子分厂产能评估为应用背景,针对生产过程为多班制、多工艺、多工序、混合作业的复杂生产方式,将生产物流仿真系统分为输入层、仿真层、输出层三个层次,采用面向对象的仿真技术,把管子生产物流中的各种要素分为不同的类,构建了管子生产物流系统的仿真模型.并对管子分厂生产能力在不同工况条件下,在不同生产调度策略下分别进行了评估.通过仿真评估帮助决策者制定出最佳的决策,提高生产能力. 相似文献
922.
基于血液的生理特性及应急保障特性,以应急血液最晚运达时间最小、接收时的最低新鲜度最大、运输总费用最小为目标,建立考虑多品种、多式联运的应急血液调剂出救点选择,即运输路线安排问题两阶段决策优化模型,并设计了一种包含局部邻域优化的遗传,即禁忌混合算法进行求解.以“5.12”汶川大地震应急血液保障为背景构建算例,分析验证了两阶段决策方法在最晚抵达时间、新鲜度均值、运输总费用、血液积压量等指标上的优越性. 相似文献
923.
基于对市场准入机制内容的分析,借鉴发达国家和地区各种市场准入及其认证认可合格评定程序实施经验,并结合我国交通行业现状,认为建立一套统一的交通运输行业产品市场准入制度是必要的,并提出相应的措施。 相似文献
924.
随物流服务发展的多元化、竞争的激烈化,铁路需要实施差异化战略增强竞争力.在车流组织过程中的优化是保证差异化实施的重要环节.本文在不同服务水平的约束下,以总开行成本最小为目标构建差异化铁路运输产品开行设计优化模型.考虑铁路运输每支车流的可选径路数量的规模,求出车流可选径路集,在此基础上为每支车流选择合适径路.针对模型特点,设计一种两阶段启发式算法进行求解.最后设计算例对模型与算法进行验证,算例结果表明,所提出的优化思想和方法对铁路运输组织有一定的借鉴意义. 相似文献
925.
于春艳 《武汉船舶职业技术学院学报》2013,(5):53-54
伴随着电子商务的迅速发展,物流已经成为制约电子商务发展的瓶颈。文中根据国内电子商务企业与物流企业的交叉渗透发展、联合发展现状,针对性地提出个性物流的补充解决措施,以期实现电子商务与物流的同步协调发展。 相似文献
926.
通过对香港特区物流行业内多个细分专业领域的能力标准说明作深入分析,包括职业范畴、能力表和能力单元,总结香港制定课程标准的经验,提出广东省在制定中高职衔接的物流专业课程标准时需加强顶层制度设计、培养关键能力和技能、加强质量保证体系的建议。 相似文献
927.
城市物流信息平台可以通过信息网络的互连实现物流信息共享。在分析哈尔滨市物流信息平台所应具备的特点和物流需求特征后,提出哈尔滨市物流信息平台应具备的3个主要功能。构建基于物理层、支持平台和第三方服务的3层逻辑模型,并根据功能需求设置13个子系统。设计数据分析服务框架结构,并设计以历史数据库、融合数据库和共享信息数据库为核心的数据库系统。 相似文献
928.
ABSTRACTTo establish an Association of Southeast Asian Nations (ASEAN) Single Shipping Market (ASSM) is an important part of ASEAN governments’ overall plan to achieve an ASEAN Economic Community by 2015. It is expected that a single shipping market will improve the region’s logistics performance and international competitiveness. To achieve this vision, however, the ASEAN countries need to remove any remaining barriers to logistics performance. In this light, the objective of this paper is to identify these barriers and assess their effects on the logistics performance of shipping and logistics firms based in ASEAN countries. Using a questionnaire-based survey, the study revealed several barriers affecting their logistics performance with varying significance among these countries. Unless these barriers from the perspective of the industry are removed, the ability of the shipping and logistics industry to benefit from a liberalized market would be limited. These perceived barriers are examined in detail and strategies to address them are proposed. The ASEAN experience is applicable to similar countries in the process of integrating their international shipping sector as well as contributes to the understanding of the different barriers and how these barriers can affect the logistics performance of shipping and logistics companies. 相似文献
929.
The feasibility of implementing short sea shipping (SSS) between two specific ports has been typically approached on the operative level, in terms of time and cost for a specific origin–destination pair. This paper focuses on the strategic level. Particularly, its goal is to study the potential of SSS in different industrial sectors by analysing their freight-distribution strategies. To achieve the objective, some standard freight-distribution strategies are defined based on the requirements of the industry, the demand and the product being transported. The information is complemented with a survey of more than 100 Spanish companies distributing internationally. As a result it is concluded that there are economies of scale related to the size of the carrier (the ship) and its capacity to absorb the variability in demand. This potential increases with the cargo value. Additionally, a framework of supply/distribution chains is provided which can help to identify potential customers/sectors and the feasibility of new potential shipping lines. The value of this paper resides in its approach (strategic, instead of operational/tactical), and the solid groundwork point provided for future researchers. 相似文献
930.
In this era of globalization, adoption of information and communication technology (ICT) is one of the critical determinants of logistics companies' competitiveness and growth. This is especially so for the ASEAN countries as they pursue the vision of regional economic development and integration. Existing empirical studies on ICT adoption by logistics companies in developing countries are, however, scarce and have limited theoretical support and so far no comparative analysis of ICT adoption among ASEAN logistics companies and its determinants has been undertaken. This paper investigates the level of ICT adoption among ASEAN logistics companies and also develops an investment-based model to explain it. The model is evaluated with logistic regression using firm-level data collected from interviews with a sample of ASEAN logistics companies. The study finds that ICT adoption level varies significantly among the ASEAN countries and provides an empirical support for an investment-based view of ICT adoption. It also finds no further evidence for the relevance of the institutional theory to the ASEAN logistics industry. These findings have important strategic and policy implications for the ASEAN policy-makers and logistics industry. 相似文献