文化在多媒介交互中产生新的文本意义

随着数字化时代的到来,新媒介和旧媒介不断地开放、吸收,媒介间的交融和互补现象越来越凸显,"媒介间性"得到前所未有的生长,一种崭新的、潜力巨大的媒介生产"意义链"呈现在人们面前。"媒介间性"拓宽了单一媒介的意义空间,不断衍生出新的文化产品,对文化资源的深度加工、再利用和多元生产起了积极的推动作用。     

客户化供应链产品开发知识协同管理探讨

针对经济全球化以及市场竞争等外部因素对供应链协同发展的推动,指出在以知识和全球化竞争为基础的信息社会,企业产品开发中最关键的投入与价值的来源是知识,而产品日趋复杂也使得开发必须跨越不同的专业人员、团队甚至供应链联盟。同时,客户需求的多样化和产品更新速度的加快使得知识协同成为关键性因素。文章以客户化供应链企业产品开发作为研究背景,从管理层面研究知识协同系统,探讨产品开发动因与机理,以期达到满足供应链企业发展和客户需求的双赢。     

关于现阶段我国农村公共产品供给问题的思考

对我国农村公共产品供给存在的问题进行阐述,通过借鉴国外一些先进的供给经验,从加强制度建设和加强供给力度两个方面入手,完善我国农村公共产品供给。     

基于正交试验的间歇传动链动力学仿真研究

以间歇传动链为研究对象,建立了该系统的虚拟样机。运用正交法设计试验,选择输入轴转速、导轨材料阻尼系数、链条和导轨之间的库仑动摩擦系数、预紧弹簧刚度和集中质量共5个因素作为试验参数,以链条附件加速度值作为振动指标,进行了间歇传动链的动力学仿真研究。     

上海产业高端高效的评价与升级路径研究

在全球化背景下,产业的价值链在全球分布,并且随着各区域比较优势的涨落在全球进行重新配置。上海在产业结构升级过程中,需要客观、科学、前瞻地对产业进行评价,使政府的招商政策、产业政策和资源配置指向更为明确。鉴此对产业＂高端高效＂的内涵和特性进行研究,认为高端包括高级要素禀赋、高价值链位势、高价值链控制力三个方面;高效则包括高产出效率、高附加值、高正向外部性三个方面。上海在产业升级过程中,不能简单地追求产业高端化,必须遵循高端和高效相结合的产业升级路径,才能使产业具有国际竞争力。     

供应链应急物流系统构建研究

通过剖析供应链应急物流及其系统的内涵,提出基于经济因素的供应链应急物流系统与基于非经济因素的供应链应急物流系统的逻辑模型及建设要点,并进一步探讨了供应链应急物流系统的信息预警、组织协调、风险评估等机制建设。     

忠实契约下石油装备闭环供应链对需求突发事件协调能力的实证研究

石油石化行业是中国的能耗大户,行业范围内的突发事件发生频率近年呈上升趋势,闭环供应链管理是石油装备制造业实现节能减排的重要手段。需求突发事件会给石油装备闭环供应链带来一定程度的影响。当石油装备的产品需求变化不大时,忠实契约参数可以保持不变,此时供应链具备协调性;当市场需求变化较大时,修正忠实契约参数依然可以使石油装备闭环供应链保持协调性。无论需求变化大小,石油装备经销商的市场回收价格均无需改变。     

Integrated scheduling and inventory management of an oil products distribution system

The oil supply chain is facing new challenges due to emerging issues such as new alternative energy sources, oil sources scarcity, and price variability with high impact on demand and production and profit margins reduction. Additionally, the existence of large, complex and world wide spread businesses implies a complex system to be managed where distribution can be seen as one of the key areas that needs to be efficiently and effectively managed. Different types of distribution modes characterize the oil supply chain where the pipeline mode is one of the most complex to operate when having multiproduct characteristics. This paper addresses the planning of a generic oil derivatives transportation system characterized by a multiproduct pipeline that connects a single refinery to a storage tank farm. Two alternative mixed integer linear programming models (MILP) that aim to attain a set of planning objectives such as fulfilling costumers’ demands (which is mandatory) while minimizing the medium flow rate are developed. Additionally, final inventory levels are avoided to be excessively low. A real world scenario of a Portuguese company is used to validate and compare the two alternative MILP models developed in this paper.     

Supplier integration and company performance: A configurational view

Supplier integration is considered a key managerial strategy for improving buyer performance. This study adopts a configurational approach to supplier integration, based on the interaction and complementarity between supply chain management practices. In this perspective, this study explores the impact of supplier integration and measures aimed at creating a fast supply network structure on buyer performance. This research also attempts to ascertain whether these practices can exert a synergic effect. After examining data from a sample of 186 manufacturing plants, we can conclude that while taken singly supplier integration and fast supply network structure practices have a markedly positive effect on the performance goals considered (i.e., efficiency, schedule attainment and flexibility); in addition, they interact to produce an additional synergic effect on efficiency and schedule attainment. The analyses also reveal that investing in FSNS or SI initiatives alone can be risky. On one hand, when companies fail to make any effort to structure their supply network in order to achieve fast lead times, the impact of supplier integration on efficiency and schedule attainment may be hindered and, in extreme cases, supplier integration might even have no impact at all. On the other hand, investing only in fast supply network structure initiatives, without striving to achieve an adequate level of supplier integration might well be useless: indeed, even detrimental to any improvement in performance. These findings provide useful guidelines for managers who must decide how to combine supplier integration and fast supply network structure initiatives in order to improve or maximize performance.     

Impact of product proliferation on the reverse supply chain

Product variety is one of the most important advantages in highly competitive markets. However, excessive product proliferation's reducing the profit margin has caused increased focus on developing a management method for maximal profit. In a closed-loop supply chain, product proliferation affects the reverse supply chain as well as the forward supply chain. Although increasing the number of product types can better satisfy diverse customer needs, complexity in the product recycling, remanufacturing, and resale processes may erode a firm's overall profits. In this study, we develop a mathematical model for analyzing a capacitated reverse supply chain consisting of a single manufacturer and multiple retailers. We reveal closed-form solutions for the optimal batch size and maximal profit, and discuss managerial insights into how the number of products and other factors can affect both batch size and profit. Finally, we investigate the relationship between product proliferation and the choice of logistics strategy.