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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Although traditional economic production quantity(EPQ) model assumes quality of produced items is perfect, this assumption of perfect quality is unrealistic in many industrial situations. As imperfect items in production process impact the inventory policy directly, this unrealistic assumption can lead to errors in determining the production lot size. Previously, several researchers has come up with a number of practical EPQ models when quality of produced items is imperfect. This paper deals with the situation where the items produced are a mixture of perfect and imperfect quality. Some of the imperfect items can be reworked and the others are scraped. We derive precise expressions for the expected profit per unit time and optimal production quantity when each production lot contains these two classes of imperfect quality. The analysis shows that our model is a generalization of the some models in current literatures. The implementation of the proposed model is shown using a numerical example. The sensitivity analysis is also performed to study the effect of imperfect rates of two classes on the optimal production quantity relative to traditional EPQ.
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참고문헌 (18)
참고문헌 신청
Bayati, M. F. / 2011 / A joint lot-sizing and marketing model with reworks, scraps and imperfect products / International Journal of Industrial Engineering Computations 2:395~408
Chan, W. M. / 2003 / A new EPQ model : integrating lower pricing, rework and reject situations / Production Planning & Control 14(7):588~595
Chiu Y. S. P. / 2018 / Optimization of an economic production quantity-based system with random scrap and adjustable production rate / Journal of Applied Engineering Science 16(1):11~18
Chiu Y. S. P. / 2016 / Solving a fabrication lot-size and shipping frequency problem with an outsourcing policy and random scrap / Mathematical and Computational Applications 21:1~13
Edurado, L. / 2000 / Observation on : "Economic production quantity model for items with imperfect quality / International Journal of Production Economics :67
Chan, W. M. / 2003 / A new EPQ model : integrating lower pricing, rework and reject situations / Production Planning & Control 14(7):588~595
Chiu Y. S. P. / 2018 / Optimization of an economic production quantity-based system with random scrap and adjustable production rate / Journal of Applied Engineering Science 16(1):11~18
Chiu Y. S. P. / 2016 / Solving a fabrication lot-size and shipping frequency problem with an outsourcing policy and random scrap / Mathematical and Computational Applications 21:1~13
Edurado, L. / 2000 / Observation on : "Economic production quantity model for items with imperfect quality / International Journal of Production Economics :67
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