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“互联网+”背景下双渠道供应链库存策略探讨
双渠道供应链 库存策略 报童模型 互联网+
2018/7/23
“互联网+”的提出使得研究双渠道供应链库存这一理论热点具有重要的意义。基于制造商双渠道和零售商双渠道的视角来研究双渠道供应链的库存策略问题，选择以报童模型为框架探讨两种类型的双渠道下集中和分散库存控制时的最优库存量，研究发现，集中库存下的制造商双渠道可以使得供应链系统达到最优，实现库存总量最低和供应链整体利润水平最高，且制造商和零售商实现了合理的利润分配。
Well-covered and uniformly well-covered graphs
Well-covered graph uniformly well-covered graph maximal independent set
2010/12/13
A graph G is called well-covered if all maximal independent sets of vertices have the same cardinality. A well-covered graph G is called uniformly well-covered if there is a partition of the set of ve...
Capacity Results for Relay Channels with Confidential Messages
Capacity Results Relay Channels Confidential Messages
2010/12/14
We consider a communication system where a relay helps transmission of messages from a sender to a receiver. The relay is considered not only as a helper but as a wire-tapper who can obtain some knowl...
Securing Dynamic Distributed Storage Systems against Eavesdropping and Adversarial Attacks
Eavesdropping Adversarial Attacks
2010/12/6
We address the problem of securing distributed storage systems against eavesdropping and adversarial attacks. An important aspect of these systems is node failures over time, ecessitating, thus, a rep...
We present a family of Eulerian posets which does not have any R-labeling. The result uses a
structure theorem for R-labelings of the butterfly poset.
JIT思想在现代企业中的应用
JIT 零库存 拉动式生产
2009/12/3
JIT作为源于70年代日本的一种库存管理和控制的管理思想，目前已得到广泛的认可，被普遍应用于生产管理及采购方面。JIT的宗旨就是消除制造过程中的一切浪费。JIT的思想在现代企业中的具体应用，在很大程度上表现为一种持续改善的渐进过程，而不是一场革命。企业在应用JIT时不可急于求成，要做好切实可行的实施计划。
研究多周期联合促销与库存控制问题，其中需求同时依赖促销和一个随机变量.在每一周期，决策者同时决定促销水平和订货量.利用Markov决策为该问题建模.对有限和无限周期问题，证明了最优策略是Base stock target promotion策略. 对产能有限问题，最优策略是修正的Base stock target promotion策略.这说明当初始库存较低且产能较小时，减少促销水平；当初始库存...