Joint Replenish-Up-to Multi Products EOQ with Fuzzy Rough Demand
Publish place: 6th International Industrial Engineering Conference
Publish Year: 1387
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IIEC06_039
تاریخ نمایه سازی: 8 مهر 1387
Abstract:
An nucertain economic order quantity (UEOQ) midel payment in advance is developed to purchase high-price raw materials. A joint policy of replenishments and pre-peyments is employed to supply the materials. The rate of demand is considered fuzzy rough variable, lead time is divided into three parts; the first interval is the time between the previous replenishment- time cycle is divided into three (t0), the second one is the time between t0 to a payment- time (tlc), and the third interval is the period between tic to the next replenishment-time. At the beginning of the second interval (t0), a% of the purchasing cost is paid. the remaning purchazing cost ((1-a)%) is paid at the beginning of the thired pard (tlc). we show that the model of this problem is a fuzzy rough mixed integer-nonlinear -programming type and in order to solve it, a hybrid method of particle Swarm Optimization and fuzzy rough simulation is developed.
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Authors
Ata Allah Taleizadeh
Department of Industrial Engineering, Iran University of Science and Technology
Hassan Shavandi
Department of Industrial Engineering, Sharif University of Technology
Maghsoud Amiri Moghanjoughi
Department of Industrial Management, Allameh Tabatabaee University
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