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In this article, we study an economic manufacturing quantity (EMQ) problem for an unreliable production facility where the production rate is treated as a decision variable. As the stress condition of the machine changes with the production rate, the failure rate of the machine is assumed to be dependent on the production rate. The unit production cost is(More)
Nowadays, large-scale systems perform various missions with multiple functions during life cycles for satisfying the customer’s various needs. Therefore, we should develop the robust and attractive systems and be accurately evaluated prior to development of the system. System availability is often considered to represent the performance of the repairable(More)
Optimal checkpoint placement is a commonly used technique to generate the optimal checkpoint time sequence minimizing the system cost with the recovery overhead from a system failure and the checkpoint overhead caused by check pointing itself. When the system failure occurs by an exponential distribution, especially, the corresponding optimal checkpoint(More)
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