制造业计划与控制(MPC)中的OR技术

本文在对制造业计划与控制(MPC)中运筹学方法应用情况调查分析的基础上,探讨了MPC和运筹学这两者的内在特性和发展过程的某些一致性情况,分析了二者间存在的某种内在一致性,介绍了解决这些问题的一些特定运筹学方法,并就运筹学方法扩大在MPC中的应用所面临的挑战进行了分析说明并给出对策。     

面向集团供应链的大宗物资采购计划研究

针对集团大宗物资采购的特性,研究集团采购计划的编制与调整,将集中采购计划方法应用于集团供应链中,并重点研究了需求计划变动以及集团内物资平衡引发的采购计划调整模型。模型的构建依据三个权衡准则:获取数量折扣、准时采购、降低库存,以达到计划期内采购总成本最低的目的,所建模型经转化为一般非线性模型,应用优化软件求解。最后通过算例说明所建模型的有效性。     

用0—1整数规划方法选择煤炭行业最优规划方案

文章基于采矿技术原理，运用０－１整数规划的数学方法，通过考察区域煤炭行业生产建设的总投资、总产量、总效益、安全程度这四者的相互制约关系，以求在有限投资条件下尽可能满足总产量和安全程度要求而需资金最少，产出投入比最大的最优规划方案。     

虚拟企业管理中的伙伴选择问题:模型与理论分析

本文建立了虚拟企业伙伴选择问题的整数规划模型，并从理论上证明了该类问题正规解的存在性．所获结果对于该类问题的研究与求解提供了可靠的理论依据，并将建立的模型和所得结论应用到一个工程实际问题，采用遗传算法求解，取得了满意的计算结果．     

城市化进程中外来民工居住问题研究

外来民工的居住问题是影响城市化、外来民工市民化的一大阻碍．住宅业和城市化关系密切，相互促进．现阶段，住宅业的发展不适应城市化以及外来民工市民化的要求．城市化将给住宅业带来巨大的发展空间，同时也给住宅业的发展提出了更高的要求．住宅业要为城市化服务，积极配合城市化的发展．     

基于灰色关联的天津宏观经济分析

将灰色系统的关联分析法应用于天津的宏观经济分析.将天津与周边省市及我国各地区具有代表性城市的宏观经济指标构成研究序列,采用人均国内生产总值、人均第二产业总产值和人均第三产业总产值为系统特征指标,分别建立指标体系并进行了灰色关联分析,根据结论分析了当前天津市宏观经济状况,探索天津市经济发展机制,并为天津市制定未来经济发展规划提供科学依据.     

The Indian auto component industry – Estimation of operational efficiency and its determinants using DEA

In this paper, the performance analysis of the Indian auto component industry is carried out from the perspectives of an original equipment manufacturer and a component supplier. Various efficiency measures are estimated using Data Envelopment Analysis with publicly available financial data on a representative sample of 50 firms. The first stage analysis reveals various operational inefficiencies in the auto component industry which are subsequently decomposed into technical, input mix and scale efficiencies. The study finds evidence that a majority of the inefficient firms are operating in the diminishing returns to scale region and demonstrates potential savings through benchmark input targets. A second stage analysis aimed at exploring root causes of inefficiencies finds that substitution of labour for capital could be causing a variety of inefficiencies including the input mix inefficiency in the Indian component industry. The empirical results also suggest that, unlike the global auto supply chain, higher average inventories are required for higher operational efficiencies in the Indian context. Contrary to the popular expectations, the technology licensing does not show significant influence on efficiency, at least in the short term, whereas efficient working capital management does result in higher operational efficiencies. The study also unearths the need to reform labour laws which are significantly contributing to various inefficiencies in the Indian component industry.     

创业企业中两种企业家资源的协调机制分析

创业企业中存在着两种企业家资源：创业企业家和创业投资家。本对这两种企业家资源的特性进行分析，探讨创业投资契约的控制权安排对企业家成长的作用，认为创业投资是一种企业家生成机制。     

动态联盟组盟阶段的激励机制研究

动态联盟组盟阶段成员存在信息隐藏问题。通过分析盟员信息隐瞒的概率与盟主对其信任程度之间的关系，指出有效地设计激励机制信息隐瞒的必要性。对于风险中性的成员，通过一般方法，给出了多项式形式的评分规则的确定方法，在这种规则下，成员将最大程度地如实反映自己的信息。     

Deposition and growth kinetics studies of thin zirconium dioxide films by UVILS-CVD

We report the deposition of thin zirconium dioxide films on Si(1 0 0) by a technique of ultraviolet-assisted injection liquid source chemical vapor deposition (UVILS-CVD) by using ultraviolet with 222 nm radiation. The alkoxide zirconium(IV) tert-butoxide (Zr[OC(CH₃)₃]₄) was used as precursor while nitrous oxide was driven into the reaction chamber as an oxidizing agent. The ZrO₂ films were deposited under various conditions and characterized by ellipsometry, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction and scanning electron microscopy. The growth rate decreased with the increasing of substrate temperatures from 200 to 400 °C. Deposition rate of 20 nm/min was observed at a substrate temperature of 350 °C. There was a liner relation between the thicknesses of the films and deposition times. As a result the thicknesses can be accurately controlled by changing the number of drops of precursor introduced by the injection liquid source. The growth rate increased with the increasing concentrations of the precursor, nevertheless the trend stopped when the concentration exceeded 8.5%. The growth kinetics were also studied and the results were fit to a three-step kinetic model involving a photo chemical reaction, a reversible precursor absorption process and a following irreversible deposition reaction.