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dc.contributor.author차지환-
dc.date.accessioned2016-08-27T04:08:42Z-
dc.date.available2016-08-27T04:08:42Z-
dc.date.issued2016-
dc.identifier.issn0377-2217-
dc.identifier.issn1872-6860-
dc.identifier.otherOAK-16224-
dc.identifier.urihttps://dspace.ewha.ac.kr/handle/2015.oak/217935-
dc.description.abstractBurn-in is a method of 'elimination' of initial failures (infant mortality). In the conventional burn-in procedures, to burn-in an item means to subject it to a fixed time period of simulated use prior to actual operation. Then, the items which failed during burn-in are just scrapped and only those which survived the burn-in procedure are considered to be of satisfactory quality. Thus, when the items are subject to degradation phenomena, those whose degradation levels at the end of burn-in exceed a given failure threshold level are eliminated. In this paper, we consider a new burn-in procedure for items subject to degradation phenomena and belonging to mixed populations composed of a weak and a strong subpopulation. The new procedure is based on the 'whole history' of the degradation process of an item periodically observed during the burn-in and utilizes the information contained in the observed degradation process to assess whether the item belongs to the strong or weak subpopulation. The problem of determining the optimal burn-in parameters is considered and the properties of the optimal parameters are derived. A numerical example is also provided to illustrate the theoretical results obtained in this paper. (C) 2015 Elsevier B.V. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectBurn-in-
dc.subjectDegradation process-
dc.subjectNon-homogeneous gamma process-
dc.subjectMixed population-
dc.subjectCost optimization-
dc.titleOptimal burn-in procedure for mixed populations based on the device degradation process history-
dc.typeArticle-
dc.relation.issue3-
dc.relation.volume251-
dc.relation.indexSCIE-
dc.relation.indexSCOPUS-
dc.relation.startpage988-
dc.relation.lastpage998-
dc.relation.journaltitleEUROPEAN JOURNAL OF OPERATIONAL RESEARCH-
dc.identifier.doi10.1016/j.ejor.2015.12.019-
dc.identifier.wosidWOS:000371652000022-
dc.identifier.scopusid2-s2.0-84953236377-
dc.author.googleCha, Ji Hwan-
dc.author.googlePulcini, Gianpaolo-
dc.contributor.scopusid차지환(7202455739)-
dc.date.modifydate20210929143750-
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자연과학대학 > 통계학전공 > Journal papers
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