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In this research, a coordination mechanism based on a credit period in a two echelon supply chain with one buyer and one supplier, is designed. The buyer is faced with uncertain demand by coping with normal distribution. Both lead time and ordering cost for receiving his order can be reduced at an added cost; in other words, they are controllable. The(More)
Production scheduling, with the objective of minimizing the makespan, is an important task in manufacturing systems. In the past, the processing time for each job was usually assumed to be exactly known, but in many real-world applications, processing times may vary dynamically due to human factors or operating faults. Fuzzy programming theory has been(More)
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