共查询到20条相似文献,搜索用时 78 毫秒
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在经济全球化条件下,国际产业结构的调整更多地表现为全球产业体系内分工的调整。跨国电子企业采用全球外包策略,对全球价值链的重新布局,造就了电子产业中重要的新兴国际代工产业——电子制造服务产业。世界电子产业体系调整和跨国外包的盛行,使全球采购能力成为电子制造服务业获取市场成功首当其冲的重要因素。本文对电子制造服务业全球采购的传统模式进行了研究分析,引入了协同理论,提出了集成化全球采购的创新模式。详细地阐述了集成化全球采购的思路、运作模式、以及它在电子制造服务业应用中的商用效益,并以实例剖析了集成化全球采购下的采购成本优化节余,为电子制造服务业优化全球采购能力开拓了新的思路,建立了实用的运作模式,也为电子制造服务业的发展提供了科学提导,丰富了电子制造服务业全球采购理论。 相似文献
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张艳 《中国制造业信息化》2008,(5):42-43
生存在夹缝中
中国电子行业全球化程度之深刻,几乎可以看作是中国企业全球化的一个缩影。由于相关政策的支持和资源成本的优势,大批外资电子企业被吸引,纷纷在中国设立研发和制造基地。世界500强中约有80%的跨国公司涌入我国,凭借其品牌优势、资金实力和雄厚技术,在我国市场大展拳脚;与此同时,越来越多的国内公司通过向海外出售产品、在其他国家建立生产厂以及与外国公司缔结联盟等手段进入国际市场。全球采购,国内制造、国际销售的产业模式正日渐成形。 相似文献
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Synthia Xin Shen Chuan Feng Han 《International Journal of Flexible Manufacturing Systems》2006,18(4):285-303
The paper analyzes the Electrical Manufacturing Services (EMS) industry’s current status in China, introduces a value stream
mapping (VSM) collaboration tool which brings solid working process with agile information flow, and builds a theoretical
foundation with a new management concept for China EMS to promote its integrated core competencies and to increase the market
returns. VSM collaboration tools can be used across the electronics industry and other industries; it provides EMS the strategic
advantages of a flexible, reactive system that agilely adapts to customers’ real-time needs, and builds EMS high profile with
core competencies of being a strategic world-class performer. 相似文献
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高飞 《仪器仪表标准化与计量》2014,(2):37-39
EMS是新兴的信息系统项目,在各个行业特别是工业领域取得了快速地发展。在进入地铁领域时EMS由于和现有的不少系统有着交集,如何在地铁行业中定位EMS,理清EMS和其他系统的关系就成了当务之急。本文通过EMS和地铁中的BAS、SCADA以及ISCS之间的关系比较,指出EMS更偏重于数据分析及挖掘,是对其他系统采集的数据进行更深入、更精确、二次开发的信息系统。 相似文献
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EHS管理体系是环境管理体系(EMS)和职业健康安全管理体系(OHSMS)两体系的整合,即为环境、职业健康安全管理体系。通过介绍EHS管理体系,具体阐述其审核流程,并举例说明制药企业在接收审核时的注意事项,以期加强我国制药企业对EHS管理体系的认识,完善企业EHS管理体系的建立,促进我国制药行业的发展。 相似文献
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T. W. Kim S. M. Lee C. G. Kang B. M. Kim 《The International Journal of Advanced Manufacturing Technology》2009,40(3-4):242-252
A rheological forging process to fabricate engineering components of A6061 wrought aluminum alloy with a controlled liquid fraction has been proposed and mechanical properties of the products characterized. The process uses a medium pressure of below 45 MPa and electromagnetic stirring (EMS). The processing parameters such as injection velocity, injection pressure, and stirring time were optimized to obtain improved mechanical properties. It was also possible to determine injection time and stirring time by measuring the temperature of molten metal in the sleeve. After the products were manufactured by using EMS, their microstructure and mechanical properties were investigated by image analysis, comparing to parts produced without EMS. Those products fabricated by EMS had better mechanical properties and had over 20% higher globular microstructures than those fabricated without EMS. 相似文献
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Improvements in hybrid electric vehicle (HEV) fuel economy and emissions heavily depend on an efficient energy management strategy (EMS).However,the uncertainty of future driving conditions generally cannot be easily tackled in EMS design.Most existing EMSs act upon fixed parameters and cannot adapt to varying driving conditions.Therefore,they usually fail to fully explore the potential of these advanced vehicles.In this paper,a novel EMS design procedure based on neural dynamic programming (NDP) is proposed.The NDP is a generic online learning algorithm,which combines stochastic dynamic programming (SDP) and the temporal difference (TD) method.Instead of computing the utility function and optimal control actions through Bellman equations,the NDP algorithm uses two neural networks to approximate them.The weights of these neural networks are updated online by the TD method.It avoids the high computational cost that SDP suffers from and is suitable for real-time implementation.The main advantages of NDP EMS is that it does not rely on prior information related to future driving conditions,and can self-tune with a wide variance in operating conditions.The NDP EMS has been applied to "Qianghua-I",a prototype of a parallel HEV,using a revolving drum test bench for verification.Experiment results illustrate the potential of the proposed EMS in terms of fuel economy and in keeping state of charge (SOC) deviations at a low level.The proposed research ensures the optimality of NDP EMS,as well as real-time applicability. 相似文献
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汽油中的硫、磷、铅、锰、硅等微量杂质会严重影响电喷发动机系统中氧传感器的氧敏效应,是使氧传感器失效的主要原因之一。分析了这些杂质对氧传感器响应特性的影响以及损坏氧传感器的主要原因。研究发现:硫和锰会与氧传感器中的多孔铂电极发生反应,降低电极活性而恶化由稀至浓响应速度。铅会与铂电极形成低共熔物,延长氧传感器的响应时间。而硅和磷的作用主要在于对多孔电极层和保护层的严重堵塞。 相似文献
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针对当前制造业的形势,分析现代制造服务业的发展过程及发展现代制造服务业的意义,讨论国外发达国家发展现代制造服务业的经验,重点阐述经济全球化对发展我国现代制造服务业的影响,分析我国发展现代制造服务业的优势,最后提出我国发展现代制造服务业的对策与建议。 相似文献