Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/79917
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dc.contributor.authorWu, Kanen
dc.contributor.authorHui, Keungen
dc.date.accessioned2011-10-11T04:05:33Zen
dc.date.accessioned2019-12-06T13:36:45Z-
dc.date.available2011-10-11T04:05:33Zen
dc.date.available2019-12-06T13:36:45Z-
dc.date.copyright2008en
dc.date.issued2008en
dc.identifier.citationWu, K., & Hui, K. (2008). The Determination and Indetermination of Service Times In Manufacturing Systems. IEEE Transactions on Semiconductor Manufacturing, 21(1), 72-82.en
dc.identifier.issn0894-6507en
dc.identifier.urihttps://hdl.handle.net/10356/79917-
dc.description.abstractThe notion of service times is of such fundamental importance in the analysis of queues that it has long been taken for granted. Intuitively, it is used to represent the time interval that a server is capable of completing a dispatched job. However, actual measurements of service times under simple queues in production lines have encountered practical difficulties, in spite of its seemingly deterministic nature. Previous studies have introduced concepts of effective process times to quantify service times. Besides notions of theoretical processing times, raw process times and queueing times, among others, are commonly used in various applications. Their existence causes confusion in the determination of service times and clarification of such terminologies is needed. A simple model is examined to quantify the various concepts and establish their interrelationships. This paper brings out new properties of effective process times with a dynamic dependence on utilization. Discrete event simulations are conducted to verify these properties and explain the phenomenon of indetermination of service times. Both theoretical prediction and simulation results show that unless the system is fully loaded, service time and effective process time are not equivalent and it cannot be measured directly from observations of effective process times.en
dc.format.extent11 p.en
dc.language.isoenen
dc.relation.ispartofseriesIEEE transactions on semiconductor manufacturingen
dc.rights© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at:http://dx.doi.org/10.1109/TSM.2007.914334.en
dc.subjectDRNTU::Engineering::Industrial engineering::Operations researchen
dc.titleThe determination and indetermination of service times in manufacturing systemsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen
dc.identifier.doi10.1109/TSM.2007.914334en
dc.description.versionAccepted versionen
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