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Perishable inventory management system with a minimum volume constraint / Z. Shen in Journal of the operational research society (JORS), Vol. 62 N° 12 (Décembre 2011) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 62 N° 12 (Décembre 2011) . - pp. 2063–2082 Titre : Perishable inventory management system with a minimum volume constraint Type de document : texte imprimé Auteurs : Z. Shen, Auteur ; M. Dessouky, Auteur ; F. Ordonez, Auteur Année de publication : 2011 Article en page(s) : pp. 2063–2082 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Perishable  inventory  management  EMQ  Non-convex  unconstrained  optimization  problem  Emergency  response  VMI  Pharmaceutical  inventory  management Index. décimale : 001.424 Résumé : The federal government maintains large quantities of medical supplies in stock as part of its Strategic National Stockpile (SNS) to protect the American public in case of a public health emergency. Managing these large perishable inventories effectively can help reduce the cost of the SNS and improves national security. In this paper, we propose a modified Economic Manufacturing Quantity (EMQ) model for perishable inventory with a minimum volume constraint, which is applicable to managing the inventory of medicines for the Strategic National Stockpile. We demonstrate that minimizing the cost of maintaining such a system can be formulated as a non-convex non-smooth unconstrained optimization problem. The property of this model is analysed and an efficient exact algorithm is presented to solve this problem. In the numerical experiment part, we perform sensitivity analysis on several government-controlled system parameters to illustrate how the government can obtain lower costs or a larger stockpile at the same cost by allowing more freedom in the management of the stocks. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v62/n12/abs/jors2010181a.html [article] Perishable inventory management system with a minimum volume constraint [texte imprimé] / Z. Shen, Auteur ; M. Dessouky, Auteur ; F. Ordonez, Auteur . - 2011 . - pp. 2063–2082. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 62 N° 12 (Décembre 2011) . - pp. 2063–2082 Mots-clés : Perishable  inventory  management  EMQ  Non-convex  unconstrained  optimization  problem  Emergency  response  VMI  Pharmaceutical  inventory  management Index. décimale : 001.424 Résumé : The federal government maintains large quantities of medical supplies in stock as part of its Strategic National Stockpile (SNS) to protect the American public in case of a public health emergency. Managing these large perishable inventories effectively can help reduce the cost of the SNS and improves national security. In this paper, we propose a modified Economic Manufacturing Quantity (EMQ) model for perishable inventory with a minimum volume constraint, which is applicable to managing the inventory of medicines for the Strategic National Stockpile. We demonstrate that minimizing the cost of maintaining such a system can be formulated as a non-convex non-smooth unconstrained optimization problem. The property of this model is analysed and an efficient exact algorithm is presented to solve this problem. In the numerical experiment part, we perform sensitivity analysis on several government-controlled system parameters to illustrate how the government can obtain lower costs or a larger stockpile at the same cost by allowing more freedom in the management of the stocks. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v62/n12/abs/jors2010181a.html