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459  Articles
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This paper investigates a production lot sizing problem where defective items produced during a production run can be reworked after inspections conducted during and at the end of production. The rework process is considered to produce a fixed proportion ... see more

In this paper, we study a vendor-buyer integrated supply chain with uncertain demand and random defect rate under carbon cap-and-trade policy. We assume that the lot sent by the vendor to the buyer in each shipment contains a random fraction of defective ... see more

In the most of the production systems, at the end of the replenishment period, some imperfect units detected by inspection process, are reworked and the others are disposed. Constant rate of demand is one of the usual assumptions in the conventional lot s... see more

In this paper, we propose an appropriate inventory model for a non-instantaneous deteriorating items having Ramp-type demand rate with time dependent deterioration rate. In this model, the shortages are allowed and, which is partially backlogged. The back... see more

Due to the declining number of available nuclear reactors capable of Tc-99m production and tight regulations related to uranium enrichment, cyclotron-based Tc-99m production has recently been suggested as a new method to help ease Tc-99m supply shortages.... see more

RésuméObjectif : Présenter un état des lieux des pénuries de médicaments dans les établissements de santé du Québec de 2006 à 2015.Description de la problématique : Il existe de nombreuses causes aux pénuries de médicaments, et ce problème fait intervenir... see more

Gunungkidul was being as an extreme nature and categorized as marginal land which was cause food shortages in some districts. One of the district experienced food shortages in 2013 was Purwosari.  This research aimed to find out the food consumption ... see more

This contribution starts by observing the low presence of “indie made”, distributed and digital fabrication based products in the everyday life of most people. We assume that this low presence is a result of limitations regarding the available physica... see more

Although minimizing costs is the main objective in inventory models, meeting customer's needs is another basic goal of many companies. Especially in the case shortages are allowed, the waiting time a customer spends to receive his/her backlogged shortage ... see more

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