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Sku assignment is an essential problem for the design and operation of Automated Picking System (APS), which is mainly composed of Horizontal Dispenser (HD) and A-frame. The challenge is to develop an effective measurement to evaluate the sku and the efficient assignment procedure in practice. Based on fluid model, the optimal number of channels allotted to each sku to minimize the total restocking...
This paper aims to establish a dynamic vessel fleet planning model in uncertain circumstance, which offers the shipping companies the appropriate development strategy. Based on the characteristics of the shipping market, we consider the market volatility faced by the shipping companies on the strategies of the fleet planning. Firstly, we establish a forecast model to predict the future shipping demand...
In order to solve the problem of determining the optimal customizing point under customers requirement of customizing different kinds of product, with the supply chain covering product life cycle as research object, according to different positions from which the customizing action begins, three types of supply chain when customer order decoupling point (CODP) positioning at manufacturing, assembly...
In many allocations to which data envelopment analysis (DEA) could be applied, there are often fixed costs or resources that are imposed on all decision making units (DMUs). How can these costs or resources be assigned in a reasonable way to various DMUs? To obtain an appropriate allocation, in this paper we propose a DEA approach, which is based on two assumptions: efficiency invariance, minimal...
The building logistics cost forecasting is a complicated nonlinear problem, due to the factors that influence building logistics cost are anfratuous, so it was difficult to describe it by traditional methods. Radial basic probabilistic neural network (RBPNN) is one of the neural networks used widely and it has the ability of strong function approach and fast convergence, in this paper, a modeling...
When production yields are random and orders need to be satisfied in full, several production runs may need to be initiated until an order is met. The universal objective function usually used in conjunction with this process is the minimization of expected costs. However, sometimes the manufacturer may want to consider a deviation from the dasiaoptimalpsila cost-minimizing process, if the risk of...
In this paper we study a logistics park location planning problem in which logistics park has variable capacities related to the park size that is decided in the given range and the size ranges are different in every potential location site. We introduce the design modes to deal with the nonlinear tracts cost function and obtain an integer programming model. Then column generation is used to solve...
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