Equipping hospital beds uses a great deal of a hospital''''s resources. Therefore, it is essential to consider the hospital beds'''' efficiency. To increase its efficiency, a fuzzy unrestricted model for managing hospital expenses is presented in this paper. The lack of beds in hospitals leads to patients’ admission loss and consecutively profit loss. On the other hand, increasing the bed count...

A novel multi-server vacation queuing model is considered. The distinguishing feature of the model, compared to standard queues, self-sufficiency servers. server can terminate service and go on independently system manager overall situation in system. make decisions whether allow start work after completion when try returning some from a process customers. arrival flow defined by general batch ...

In this paper, a multi-server queueing system providing service to two correlated flows of requests was considered. Non-preemptive priority granted one flow via the preliminary delay in intermediate buffers with different rates extracting from buffers. Customers’ impatience during waiting and main taken into account. The possibility use results mathematical analysis for managerial goals is nume...