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Ditemukan 2 dokumen yang sesuai dengan query
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Gharaei, Abolfazl
An optimal integrated lot sizing policy of inventory in a bi-objective multi-leve supply chain with stochastic constraints and imperfect products
" This paper provides a developed mathematical model to derive the optimal integrated lot sizing in a multi-level supply chain with imperfect quality products. The developed mathematical model has a bi-objective function, with conflicting goals, minimizing the chain inventory costs and maximizing the chain total profit aided to find optimum policy for integrated lot sizing. We further actualize the problem by assuming multiple stochastic constraints. The mathematical formulation of the problem is stochastic, nonlinear, and large. ... "
Taylor and Francis, 2018
658 JIPE 35:1 (2018)
Artikel Jurnal  Universitas Indonesia Library
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Gharaei, Abolfazl
Modeling and optimization of four-level integrated supply chain with the aim of determining the optimum stockpile and period length : sequential quadratic programming / Abolfazl Gharaei, Seyed Hamid Reza Pasandideh
" ABSTRAK
In this paper, we modelled a multi-product four-level integrated supply chain network problem consisting of a supplier, a producer, a wholesaler, and multiple retailers. The aims of this paper are both to find the number of optimum stockpiles in each level and the optimum period length such that the total cost of the chain is minimized while constraints such as limited procurement cost, limited space, and limited ordering cost are satisfied. Mentioned problem is a ... "
Oxon: Taylor and Francis, 2017
658 JIPE
Artikel Jurnal  Universitas Indonesia Library