基于战时弹药消耗及补给数据的弹药储备量控制方法

针对战时基于定点调拨的弹药储备与基于定期调拨的弹药储备中存在的断供与盲供问题,从弹药消耗及补给数据出发,围绕弹药消耗量、补给量与储备量之间的相互关系,以优化技术为手段,兼顾基于定点调拨弹药储备与基于定期调拨弹药储备的优点,通过寻求最佳弹药储备量和最佳弹药补给点的方法,实现了弹药储备量的优化控制,为今后的弹药储备控制方法研究提供了理论依据和参考。     

建筑消防水系统工程施工存在的问题及建议

针对近年来对一些建筑消防设施水系统工程的中期检查和工程消防验收．以及对投入使用后的建筑进行消防监督检查中发现的建筑消防设施水系统工程存在的一些施工质量问题,在依据有关消防技术性规范的基础上,查找根源,提出几点建议。     

高层建筑消防供电可靠性探析

根据目前乌鲁木齐城网的供电方式,通过对高层建筑消防供电的可靠性分析,指出在哪些情况下,为满足高层建筑的一级负荷供电要求,用户应增设自备发电机。     

Supply contracts in manufacturer‐retailer interactions with manufacturer‐quality and retailer effort‐induced demand

We consider a decentralized distribution channel where demand depends on the manufacturer‐chosen quality of the product and the selling effort chosen by the retailer. The cost of selling effort is private information for the retailer. We consider three different types of supply contracts in this article: price‐only contract where the manufacturer sets a wholesale price; fixed‐fee contract where manufacturer sells at marginal cost but charges a fixed (transfer) fee; and, general franchise contract where manufacturer sets a wholesale price and charges a fixed fee as well. The fixed‐fee and general franchise contracts are referred to as two‐part tariff contracts. For each contract type, we study different contract forms including individual, menu, and pooling contracts. In the analysis of the different types and forms of contracts, we show that the price only contract is dominated by the general franchise menu contract. However, the manufacturer may prefer to offer the fixed‐fee individual contract as compared to the general franchise contract when the retailer's reservation utility and degree of information asymmetry in costs are high. © 2008 Wiley Periodicals, Inc. Naval Research Logistics, 2008     

串联型有源电力滤波器的控制策略

通过所给出的串联型有源电力滤波器系统结构 ,分析了其补偿电压型负载的工作原理。在此基础上探讨了串联型有源电力滤波器的关键技术之一———获得参考电压的控制策略 ,包括检测电源电流和检测负载电压两种控制策略 ,并设计了相应的控制电路。最后 ,通过实验研究了串联型有源电力滤波器采用这两种不同控制策略时对电压型负载的谐波补偿效果     

两个单周期的备件存储模型

在工作寿命和修理时间之一服从一般的连续型分布,另一个服从指数分布的情形下讨论了单周期的备件存储问题,通过适当地划分系统的状态,利用Markov更新过程的理论进行了分析,建立了概率型模型,并由模型得到了最佳备件数的求法。     

基于MAS的武器装备供应管理支持系统设计

对武器装备供应管理系统结构和功能进行了分析,给出系统的一般构成模式和运行要求,阐明了其所需的决策支持;以系统一般模式为背景,探讨了利用多Agent系统理论构建装备供应管理支持系统的思路,提出支持系统的组成框架,并说明了其主要特点;最后,对支持系统的信息监控过程做了具体研究,给出了相应程序。     

Transshipment through crossdocks with inventory and time windows

A major challenge in making supply meet demand is to coordinate transshipments across the supply chain to reduce costs and increase service levels in the face of demand fluctuations, short lead times, warehouse limitations, and transportation and inventory costs. In particular, transshipment through crossdocks, where just‐in‐time objectives prevail, requires precise scheduling between suppliers, crossdocks, and customers. In this work, we study the transshipment problem with supplier and customer time windows where flow is constrained by transportation schedules and warehouse capacities. Transportation is provided by fixed or flexible schedules and lot‐sizing is dealt with through multiple shipments. We develop polynomial‐time algorithms or, otherwise, provide the complexity of the problems studied. © 2005 Wiley Periodicals, Inc. Naval Research Logistics, 2005     

高层建筑火场供水原则及其应用

能否保证火场不间断供水,是高层建筑火灾扑救成功的关键。根据高层建筑的特点,提出了高层建筑火场供水原则,并依据此原则,论述了高层建筑火场供水方法及注意问题。