Documents disponibles écrits par cet auteur

The combined manpower planning and preventive maintenance strategies by aggregate planning for the service division of vending machines / Kim, S. in Journal of the operational research society (JORS), Vol. 63 N° 8 (Août 2012) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 63 N° 8 (Août 2012) . - pp. 1034–1050 Titre : The combined manpower planning and preventive maintenance strategies by aggregate planning for the service division of vending machines Type de document : texte imprimé Auteurs : Kim, S., Auteur ; S. Yoo, Auteur Année de publication : 2012 Article en page(s) : pp. 1034–1050 Note générale : Operational research Langues : Anglais (eng) Mots-clés : Aggregate  planning  Manpower  planning  Maintenance  Repair  Non-linear  programming  Vending  machine  industry Index. décimale : 001.424 Résumé : This paper presents a mathematical model of aggregate planning for the service division of vending machines, which determines its workforce size and the preventive maintenance level that may affect the failure rate. The unique aspect of this problem is that it exhibits two types of failures requiring different repair and preventive maintenance. The practice is to divide the service division into two groups, within which there are hierarchies according to these types of failures, and in each group, there are full-time workers with annual contracts and temporary workers hired only during the peak season. A case study based on actual operational data demonstrates how effective the introduced model and the policy are in reducing the total cost and improving the quality of service, and thus enhancing the overall system performance of the service division. We perform sensitivity analysis on key parameters, which helps us change maintenance strategies under diverse operating situations. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n8/abs/jors201198a.html [article] The combined manpower planning and preventive maintenance strategies by aggregate planning for the service division of vending machines [texte imprimé] / Kim, S., Auteur ; S. Yoo, Auteur . - 2012 . - pp. 1034–1050. Operational research Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 63 N° 8 (Août 2012) . - pp. 1034–1050 Mots-clés : Aggregate  planning  Manpower  planning  Maintenance  Repair  Non-linear  programming  Vending  machine  industry Index. décimale : 001.424 Résumé : This paper presents a mathematical model of aggregate planning for the service division of vending machines, which determines its workforce size and the preventive maintenance level that may affect the failure rate. The unique aspect of this problem is that it exhibits two types of failures requiring different repair and preventive maintenance. The practice is to divide the service division into two groups, within which there are hierarchies according to these types of failures, and in each group, there are full-time workers with annual contracts and temporary workers hired only during the peak season. A case study based on actual operational data demonstrates how effective the introduced model and the policy are in reducing the total cost and improving the quality of service, and thus enhancing the overall system performance of the service division. We perform sensitivity analysis on key parameters, which helps us change maintenance strategies under diverse operating situations. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n8/abs/jors201198a.html