基于供应链管理的制造型企业库存优化研究

如何科学地削减库存总量,保持合理的库存水平,实现企业低成本运营,一直是企业界所关注的热点问题。分析了AIP公司的库存管理现状,通过加强物流管理、改善内部供应链、扩大信息共享范围等手段,解决了库存量偏高和库存结构不合理问题,实现了优化库存总量、降低经营成本和提高市场竞争力等企业目标,并据此提出库存管理内容和模式的一些创新观点,从技术层面找到了普遍适用的库存管理与控制的有效措施。     

基于UML的虚拟企业产品库存管理模型研究

文章根据虚拟企业的特点,对虚拟企业的库存管理系统进行分析,并建立了"盟主-成员"型的虚拟企业库存管理理论视图.之后,使用统一建模语言UML对整个系统进行需求分析,建立其库存的静态及动态结构模型.最后在此基础上使用VC 对整个库存管理系统进行开发设计.     

Integrated multi‐echelon supply chain design with inventories under uncertainty: MINLP models,computational strategies

We address in this article a problem that is of significance to the chemical industry, namely, the optimal design of a multi‐echelon supply chain and the associated inventory systems in the presence of uncertain customer demands. By using the guaranteed service approach to model the multi‐echelon stochastic inventory system, we develop an optimization model to simultaneously determine the transportation, inventory, and network structure of a multi‐echelon supply chain. The model is an MINLP with a nonconvex objective function including bilinear, trilinear, and square root terms. By exploiting the properties of the basic model, we reformulate this problem as a separable concave minimization program. A spatial decomposition algorithm based on the integration of Lagrangean relaxation and piecewise linear approximation is proposed to obtain near global optimal solutions with reasonable computational expense. Examples for specialty chemicals and industrial gas supply chains with up to 15 plants, 100 potential distribution centers, and 200 markets are presented. © 2009 American Institute of Chemical Engineers AIChE J, 2010     

Charakterisierung und Störstoffanalyse von rückgewonnenen Stoffströmen aus Wärmedämmverbundsystemen

Due to the growing energy requirements, the proportion of external thermal insulation composite systems (ETICS) installed has increased significantly during the past 50 years. Due to the longevity of these systems, ETICS waste is currently accumulating. Owing to the complex construction as well as a multitude of differently installed materials and substances of the past generations, there are many uncertainties and problems with the clean and low-pollutant processing of such systems. In the frame of this work, the ETICS were processed and sorted before being screened for ingredients or pollutants as well as for the purity of the recovered material fractions.     

Firm Partial Modularity and Performance in the Electronic Manufacturing Services Industry

Firms continue to develop new ways to decentralize non-core activities to outside parties. Scholars have approached this issue with modularity theory, suggesting a continuum of arrangements ranging from hierarchy to market. Hierarchy relies on fiat, while partially modular forms, those forms between hierarchy and market, require greater coordination, communication and relationships between firms than do fully modular (or market) forms. While modularity theory identifies this continuum, the associated empirical literature tends to dichotomize modularity: firms are either modular or they are not. Nor does the empirical literature examine the performance outcomes of modular arrangements within this continuum. By examining firms that vary between full integration and partial modularity with a continuous modularity measure, this paper empirically examines the performance outcomes associated with a range of modularity levels. We derive this measure from a peculiar inventory option available within the electronic manufacturing services (EMS) industry. Our data include observations on 260 firms over five years. We find that more firms rely on partially modular arrangements, the lower their performance. We suggest explanations for this result, and areas of future research meant to pursue it.     

有租借仓库并允许缺货的随机存贮模型

库存管理中已经存在的EOQ、(S,s)等经典模型,尚无法解决“有租借仓库”、“允许缺货”和“随机交货”并存的存贮管理问题。本文提出了针对上述三个条件并存情况下的存贮模型,将统计意义下单位时间损失费用作为指标函数来评价该方案,并将单品种固定库存总量随机存贮管理模型推广到多品种固定库存总量随机存贮管理模型中,给出了非线性规划模型。最后给出实例,采用优化算法在MATLAB下对模型求解。     

价格折扣和运输折扣下供应链库存—运输优化模型

首先考虑了价格折扣和运输折扣前销售商和供应商各自利润最大的库存—运输模型，然后建立了价格折扣和运输折扣后满足帕雷托有效性，使供应链整体利润最大的库存—运输优化模型，并结合算例说明模型的有效性．     

Cost and Reliability Approaches in Inventory Theory

A stochastic model from inventory theory accounting for merchandize return and end-of-season sale is analyzed. The model demonstrates the advantages of the cost and reliability approaches. The optimal and asymptotic optimal control strategies are constructed, the distributions of the input and output processes being assumed known.The study was partially sponsored by RFFI, grants Nos. 03-01-00724 and NSh.1758.2003.1.__________Translated from Kibernetika i Sistemnyi Analiz, No. 1, pp. 69–81, January–February 2005.     

论钢铁行业在供应链条件下的零库存管理

我国钢铁企业普遍存在着高库存、资源分散、库存不清等问题，为此，供应链管理环境下的库存控制上升为钢铁企业的重要课题。怎样通过将供应商、制造商、分销商、零售商等主体集成为一个网络，对这些具有不同目标主体之间的行为活动进行计划、协调、操作、控制和优化，使企业能够以最低的成本在准确的时间（Right time）和准确的地点（Right plaee）将准确的产品（Right product）送到客户手中？本文主要从三方面阐述推动我国钢铁行业产业链下零库存管理的具体对策与建议。     

供应链环境下设备维修备件的无库存管理

供应链合作伙伴关系是同一供应链中的供应商和顾客之间达成一种长期合作的战略合作关系，基于这种关系，提出了生产设备维修备件的无库存管理模式，通过事例的数值仿真，并与传统的Q系统模式相比，验证了新模式在一定条件下的经济合理性。