-
作者：Sun, DN; Queyranne, M
作者单位：Lingnan University; University of British Columbia
摘要：Using the net present value is the standard methodology in theoretical analysis, and the most frequently used method for making financial decisions. However, net present value is rarely used in production and inventory decisions. The main reasons appear to be the complexity of the formulae and the robustness of the EOQ model. We investigate the general multiproduct, multistage production and inventory model using the net present value of its total cost as the objective function. A power-of-two...
-
作者：Patterson, RA; Rolland, E
作者单位：University of Alberta; University of California System; University of California Riverside
摘要：Much interest exists in broadband network services to deliver a variety of products to consumers, such as Internet access, telephony, interactive TV, and video on demand. Due to its cost efficiency, Hybrid Fiber Coaxial (HFC) technology is currently being considered by most Telcos and cable companies as the technology to deliver these products. The topological HFC network design problem as implemented by several major companies is a form of the capacitated tree-star network design problem. We ...
-
作者：Dayanik, S; Gürler, U
作者单位：Columbia University; Ihsan Dogramaci Bilkent University
摘要：In this study, an adaptive Bayesian decision model is developed to determine the optimal replacement age for the systems maintained according to a general age-replacement policy. It is assumed that when a failure occurs, it is either critical with probability p or noncritical with probability 1 - p, independently. A maintenance policy is considered where the noncritical failures are corrected with minimal repair and the system is replaced either at the first critical failure or at age 7, which...
-
作者：Asmussen, S; O'Cinneide, C
作者单位：Lund University
摘要：We show that the exponential decay parameter of the waiting time in a Markov-modulated M/G/1 queue is no larger than that of the corresponding M/G/1 queue with averaged parameters, and we give a necessary and sufficient condition for equality. We also explore the effect of speeding up the modulation process. A key tool is a Markov-modulated fluid model.
-
作者：Chick, SE; Inoue, K
作者单位：INSEAD Business School
