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BURN-IN PROCEDURE BASED ON A DEPENDENT COVARIATE PROCESS

Title
BURN-IN PROCEDURE BASED ON A DEPENDENT COVARIATE PROCESS
Authors
Cha, Ji HwanPulcini, Gianpaolo
Ewha Authors
차지환
SCOPUS Author ID
차지환scopus
Issue Date
2015
Journal Title
ADVANCES IN APPLIED PROBABILITY
ISSN
0001-8678JCR Link1475-6064JCR Link
Citation
vol. 47, no. 2, pp. 506 - 529
Keywords
Burn-independent covariate processpositive quadrant dependentnegative quadrant dependentdegradation phenomenaheterogeneous populationcatastrophic failure
Publisher
APPLIED PROBABILITY TRUST
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Burn-in is a method of 'elimination' of initial failures (infant mortality). In the conventional burn-in procedures, to burn-in a component or a system means to subject it to a fixed time period of simulated use prior to actual operation. Then those which fail during the burn-in procedure are scrapped and only those which survived the burn-in procedure are considered to be of satisfactory quality. Thus, in this case, the only information used for the elimination procedure is the lifetime of the corresponding item. In this paper we consider a new burn-in procedure which additionally employs a dependent covariate process in the elimination procedure. Through the comparison with the conventional burn-in procedure, we show that the new burn-in procedure is preferable under commonly satisfied conditions. The problem of determining the optimal bum-in parameters is also considered and the properties of the optimal parameters are derived. A numerical example is provided to illustrate the theoretical results obtained in this paper.
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자연과학대학 > 통계학전공 > Journal papers
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