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作者：SPEARMAN, ML
摘要：In this paper, we consider the issue of customer service in pull production systems. We first discuss the meaning of customer service in a pull system and contrast it to push systems. We also discuss both pure and hybrid pull systems that are found in the literature. We then investigate the effects of changing inventory levels and processing time characteristics on customer service in a pure kanban system. Finally, we show that a hybrid system known as CONWIP not only has better service than a...
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作者：GROENEVELT, H; PINTELON, L; SEIDMANN, A
作者单位：KU Leuven
摘要：We study the problem of selecting the economic lot size for an unreliable manufacturing facility with a constant failure rate and general randomly distributed repair times. Safety stocks must be used to meet the managerially prescribed service level (the fraction of lost sales) because these stochastic interventions reduce the effective production capacity. We develop bounds on the range of feasible service levels and investigate the impact of several system parameters on this range. We introd...
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作者：AHMADI, RH; BAGCHI, U
作者单位：University of Texas System; University of Texas Austin
摘要：The paper presents a formulation of an n-job, m-machine flowshop problem whose objective is to determine a processing sequence of jobs that minimizes total job idleness subject to meeting job deadlines. A mirror image problem is defined with the property that there is a one-to-one correspondence between the feasible schedules of the original problem and the feasible schedules of the mirror image problem. The mirror image problem is a traditional scheduling problem with a regular performance me...
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作者：AVRAM, F; WEIN, LM
作者单位：Massachusetts Institute of Technology (MIT)
摘要：We consider the product design problem of allocating the chip sites on a semiconductor wafer to various types of chips. The manufacturing facility sells chips to its customers in sets (a specified number of several different types of chips), and the objective of the facility is to maximize the average production rate of sets. Variability in the wafer fabrication process, in particular random yield, poses a major obstacle in producing sets in a reliable fashion. A stochastic analysis is employe...
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作者：BITRAN, GR; DASU, S
作者单位：University of California System; University of California Los Angeles
摘要：In this paper, we model production problems where yields are stochastic, demands are substitutable, and several items are jointly produced. We formulate this problem as a profit maximizing convex program, and study two approximation procedures. The first method solves finite horizon stochastic programs on a rolling horizon basis. We develop a decomposition algorithm for solving the finite horizon problems. The finite horizon problems are linear programs. Our algorithm utilizes the network-like...
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作者：PETERS, H
摘要：A criterion called improving faster than is proposed and characterized to compare the strength of preference of value functions. The result can be applied in decision models where no risk is involved or, at least, explicitly modeled. A bargaining theory example illustrates the criterion.
