-
作者：GERASIMOV, AI
摘要：Analytical expressions (formulas) for normalizing constants in closed queueing networks with different classes of customers are presented and discussed in this article.
-
作者：PAPADOPOULOS, HT
摘要：This paper concerns the throughput rate of multistation reliable production lines with no intermediate buffers. Processing times at the service stations are independent, exponential random variables, possibly with different means. We extend the work started in E. J. Muth (1984) to provide an algorithm that allows for the efficient computation of longer lines and to provide results for the nonidentical server case. A result is presented which provides the distribution function of the holding ti...
-
作者：GASCON, A
摘要：In this note, an algorithm previously introduced by B. Lev and H. Weiss to optimally solve the finite horizon EOQ model with price changes is modified to avoid infeasible solutions. An example is provided.
-
作者：RONEN, D
摘要：Petroleum products are distributed worldwide from refineries and lube plants to retail outlets and industrial customers. Proper dispatching of shipments of such products, packaged and in bulk, may result in significant transportation and inventory cost savings. This work examines the variety of operational environments which exist in dispatching petroleum products, and the operations research tools used by oil companies to dispatch such products. In addition, it identifies gaps where additiona...
-
作者：KAHN, E
作者单位：University of California System; University of California Berkeley
摘要：This paper is a case study on the role of complex computer simulation models in the regulation of the electricity industry. The analysis focuses on electricity production cost simulation models as they are used to set prices for certain nonutility generators in California. This represents an early part of the trend toward ''markets'' for electric power, and away from pure monopoly supply. The introduction of even limited competition creates conditions both favoring and hindering the reliabilit...
-
作者：EISELT, HA; GENDREAU, M; LAPORTE, G
作者单位：Universite de Montreal
摘要：This is the second half of a two-part survey on arc routing problems. The first part appeared in the March-April 1995 issue of this journal. Here, the rural postman problem (RPP) is reviewed. The paper is organized as follows: applications, the undirected RPP, the directed RPP, the stacker crane problem, and the capacitated arc routing problem.
-
作者：MCDANIELS, TL
摘要：This paper uses multiple objective decision analysis to conduct an ex post analysis of a specific fisheries management decision involving conflicting long-term objectives for mixed stocks. The paper illustrates the potential role of subjective judgment in fisheries and other resource management contexts and the relevance of decision analysis for in-season salmon management. The decision context is first defined in terms of objectives and alternatives, then subjective probability distributions ...
-
作者：BITRAN, GR; MONDSCHEIN, SV
作者单位：Universidad de Chile
摘要：In this paper we study optimal strategies for renting hotel rooms when there is a stochastic and dynamic arrival of customers from different market segments. We formulate the problem as a stochastic and dynamic programming model and characterize the optimal policies as functions of the capacity and the time left until the end of the planning horizon. We consider three features that enrich the problem: we make no assumptions concerning the particular order between the arrivals of different clas...
-
作者：AHMADI, J; AHMADI, R; MATSUO, H; TIRUPATI, D
作者单位：University of California System; University of California Los Angeles; University of Texas System; University of Texas Austin
摘要：This paper considers the problem of positioning component fixtures on the carriers of computer, numerically controlled dual delivery machines used for populating printed circuit boards with surface mounted technology. This reel positioning problem (RPP) is one of a series of optimization problems that are critical for improving system productivity and realizing the full potential of concurrent operations. We formulate the RPP as a mathematical program and establish its complexity. Since the pr...
-
作者：FEDERGRUEN, A; ZHENG, YS
作者单位：University of Pennsylvania
摘要：We consider a production/distribution system represented by a general directed acyclic network. Each node is associated with a specific ''product'' at a given location and/or production stage. An arc (i, j) indicates that item i is used to ''produce'' item j. External demands may occur at any of the network's nodes. These demands occur continuously at item-specific constant rates. Components may be assembled in any given proportions. The cost structure consists of inventory carrying, variable,...
