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A Model and Polynomial Algorithm for Purchasing and Repositioning Containers

机译:购买和重新定位容器的模型和多项式算法

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We study the management of containers in a logistic chain between a supplier and a manufacturer in a ramp-up scenario with deterministic non-decreasing demand. We consider a periodic review system withTperiods ofRtime steps. The supplier sends full containers at every step and receives empty containers every period. To face demand increase, the manufacturer can purchase containers at a setup cost while the supplier can buy single-use disposables. We assume positive delivery times. We formulate our problem as a fixed-plus-linear-cost flow and solve it under a realistic assumption inO(R2·T4·log[R·T]2) time by adapting the Wagner-Within algorithm.
机译:我们研究了在确定性需求不变的情况下,供应商和制造商之间物流链中的集装箱管理。我们考虑一个周期性的审查系统,其期限为Rtime。供应商在每个步骤都发送满的容器,并在每个期间接收空的容器。为了应对需求增加,制造商可以按设置成本购买容器,而供应商则可以购买一次性使用的一次性物品。我们假设交货时间是肯定的。我们将问题表述为固定加线性成本流,并通过采用Wagner-Within算法在O(R2·T4·log [R·T] 2)时间的现实假设下求解。

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