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Cost analysis of the unloader queueing system with a single unloader subject to breakdown with two types of trailers. (English) Zbl 1230.90070

Summary: The main purpose of this paper is to develop a cost model for the unloader queueing system with a single unloader subject to breakdown with two types of trailers. The optimum value of number of trailers (taking two types together) is determined in two types of systems such that cost function per trailer per unit time is minimum. In type one system, the unloader can breakdown only when there is at least one trailer in the system. In type two system, the unloader can breakdown even when there is no trailer in the system. Related measures and parameters are evaluated and cost function is determined. Numerical evaluation is also given.

MSC:

90B22 Queues and service in operations research
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