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An integrated production-inventory model for food products adopting a general raw material procurement policy

机译:一种采用一般原料采购政策的食品综合生产库存模型

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Studies on an integrated production-inventory model for deteriorating items have been done extensively. Most of the studies define deterioration as physical depletion of some inventories over time. This definition may not represent the deterioration characteristics of food products. The quality of food production decreases over time while the quantity remains the same. Further, in the existing models, the raw material is replenished several times (or at least once) within one production cycle. In food industries, however, a food company, for several reasons (e.g., the seasonal raw materials, discounted price, etc.) sometimes will get more benefit if it orders raw materials in a large quantity. Considering this fact, this research, therefore, is aimed at developing a more representative inventory model by (i) considering the quality losses in food and (ii) adopting a general raw material procurement policy. A mathematical model is established to represent the proposed policy in which the total profit of the system is the objective function. To evaluate the performance of the model, a numerical test was conducted. The numerical test indicates that the developed model has better performance, i.e., the total profit is 2.3% higher compared to the existing model.
机译:对恶化物品的综合生产库存模型进行了广泛的研究。大多数研究如何随着时间的推移为一些库存的物理耗尽来定义恶化。该定义可能不代表食品的劣化特性。粮食生产质量随着时间的推移而减少,而数量保持不变。此外,在现有模型中,原料在一个生产周期内补充多次(或至少一次)。然而,在食品工业中,一家食品公司有几种原因(例如,季节性原材料,折扣价格等)有时会在大量订购原材料时得到更多的好处。因此,这项研究旨在通过(i)旨在考虑采用一般原料采购政策的食品和(ii)的质量损失来开发更具代表性的库存模型。建立了一个数学模型,以代表该拟议的策略,其中系统的总利润是目标职能。为了评估模型的性能,进行了数值测试。数值测试表明,与现有模型相比,开发的模型具有更好的性能,即,与现有模型相比,总利润更高2.3%。

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