Previous studies in the issue of supply chain models with imperfect quality assumed the defectives could be sold at lower unit price by the end of the inspection process and the lot-for-lot delivery policy was employed. However, in practice, defective items may have no salvage value but may need additional disposal cost to process them. The beginning of the printed circuit board (PCB) industry ...

In the present paper we investigate a EOQ model for imperfect items under time variable linear demand. The defective items is being screened out by a 100 % screening process and then sold in a single batch by the end of the 100% screening process with a salvage price. The unsold perfect item during the cycle is sold at a different salvage price at the end of cycle. Two different types for cost ...

The classic Economic Order Quantity model assumes that the unit purchasing cost is not based on the order quantity. In practice, a supplier may offer purchasers an all-units discount. We develop a model and solution procedure for the EOQ with all-unit discounts and partial backordering at a constant rate. We show, and illustrate with a numerical example, how that model can be used to find the s...

In today’s competitive business situation, the supplier frequently offers his or her retailers a permissible delay period ( i.e. , trade credit) to stimulate sales. addition, capacity of any warehouse is limited in practice, thus retailer needs an additional rented (RW) store excess units when order quantity exceeds own (OW). Furthermore, with globalization marketing policy, may provide discoun...

This paper presents the economic production quantity (EPQ) models for the imperfect quality items produced with/without the presence of shortage condition. The models are presented in a two-level supply chain composed of a single manufacturer and a single buyer to investigate the performance of vendormanaged inventory (VMI) policy. The total costs are minimized to obtain the optimal production ...

This paper introduces an integrated lot sizing and scheduling problem inspired from a real-world application in off-the-road tire industry. considers the assignment of different items on parallel machines with complex eligibility constraints within finite planning horizon. It also large panel specific such as: backordering, limited number setups, upstream resources saturation customers prioriti...

This study emphasizes the development of a flexible inventory system considering rework requirements on imperfect and defective items. work has considered items could be sold at lower price in market as compared to perfect The developed model Weibull deterioration inflation balance same amount future due its potential earning capacity. And demand's function depends well level because large pile...