排序方式: 共有106条查询结果,搜索用时 15 毫秒
91.
李悦勤 《中国人民武装警察部队学院学报》2009,25(3):7-9
护照、签证等出入境证件融合了签发国的政治文化、民族文化、地域文化、科技文化、审美文化诸要素。只有不同文化要素有机统一,才能制作一本质量上乘的证件,才能赋予出入境证件更加丰富的内涵,并切实有效地实现出入境证件的多种功能。 相似文献
92.
基于供应链的军事物资保障系统研究 总被引:3,自引:0,他引:3
高技术条件下的局部战争,物资保障任务繁重,军事物流的地位日益突出。现代物流打破了储存、运输的传统职能,充分运用了系统、集成的思想,为进一步提高军队的物资保障能力,从供应链的角度,应用现代物流理论,分析了供应链理念对军事物资保障系统的改进和推动作用,指出了当前军事物资保障系统存在的问题,在此基础上,对如何整合优化军事物资保障系统的供应链,进行了分析和探讨。对如何应用供应链理念,提高军事物资保障效率,确保适时、适地、适量可靠保障,提供了充分的理论依据。 相似文献
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Put-to-light order picking systems invert the basic logic of conventional picker-to-parts systems. Instead of successively visiting the storage positions of the stock keeping units (SKUs) when collecting picking orders, an order picker accompanies successive bins each containing multiple items of a specific SKU along a lane of subsequent orders. Whenever the picker passes an order requiring the current SKU, which is indicated by a light signal, she puts the requested number of items into the bin associated with the order. Such an order picking system is well-suited if the assortment is not overly large and all orders demand similar SKUs, so that it is mainly applied in distribution centers of brick-and-mortar retail chains. This paper evaluates four different setups of put-to-light systems, which, during operations, require the solution of different storage assignment and SKU sequencing problems. We formulate these problems, prove computational complexity, and suggest suited solution algorithms. By applying these algorithms in a comprehensive computational study, we benchmark the impact of the four different setups on picking performance. In this way, warehouse managers receive decision support on how to set up their put-to-light systems. 相似文献
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摘要:为将主动式保障先进理念应用于装甲装备保障过程,采用UML系统建模理论和方法,在分析装甲装备保障主要业务内容的基础上,通过系统需求分析建模和系统分析与设计建模,构建装甲装备主动式保障系统用例模型、对象类静态模型、动态交互模型和状态模型,以及体系结构模型,明确装甲装备主动式保障系统的结构功能与运行流程,为系统仿真与评估、演示验证等后续研究奠定基础. 相似文献
97.
确定合理的军事物流设施规模对于成功实施军事后勤保障十分重要。提出了基于RBF神经网络的军事物流设施规模预测模型的建模方法,该方法旨在确定军事物流设施规模与其影响因素之间的非线性关系;采用算例说明了基于RBF神经网络的军事物流设施规模预测的具体做法,对军事物流设施规模的确定具有指导意义。 相似文献
98.
《Arms and Armour》2013,10(2):122-143
Many late medieval documents, notably inventories of arms and armour, of Englishmen contain references to ‘Scottish swords’ and other weapons. What did the compilers of these documents mean when they described a weapon as ‘Scottish’? How did such weapons come to be in the possession of these men? This article will attempt to explain this phenomenon drawing on primary documentary sources and surviving material culture from Glasgow Museums’ collections and others, as well as artworks from the period. 相似文献
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Kristian Coates Ulrichsen 《战略研究杂志》2013,36(2):349-377
During World War I the military campaign in Mesopotamia placed enormous demands on local man- and animal power to provide the logistical resources vital to its conduct. This required the British civil and military authorities to construct a wartime state apparatus that filled the administrative vacuum left by the retreating Ottomans and made possible its downward penetration and mobilisation of local resources for the war effort. This article examines the interaction of politics and logistics in Mesopotamia and views the enhanced wartime levels of resource extraction in light of the British attempts to codify their presence in the country after 1918 and the nationalist backlash that resulted. 相似文献
100.
Hark‐Chin Hwang 《海军后勤学研究》2007,54(6):692-701
We consider a dynamic lot‐sizing model with production time windows where each of n demands has earliest and latest production due dates and it must be satisfied during the given time window. For the case of nonspeculative cost structure, an O(nlogn) time procedure is developed and it is shown to run in O(n) when demands come in the order of latest production due dates. When the cost structure is somewhat general fixed plus linear that allows speculative motive, an optimal procedure with O(T4) is proposed where T is the length of a planning horizon. Finally, for the most general concave production cost structure, an optimal procedure with O(T5) is designed. © 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007 相似文献