Operators in complex event-driven domains, such as aviation, face considerable attentional demands. They often need to time-share multiple tasks, and handle interruptions by other human and machine agents who may provide or request information in the interest of coordinating activities. The purpose of this study was to explore possible ways to support these timesharing and interruption manageme...

BRIDGE # # Bridge = 1 week introduction to the clinical blocks. (Dotted lines denote 4 week segments within a block) Other than the two week vacation period over the Christmas and New Years Holidays vacation period each year, students are expected to assume the professional responsibilities of the service on which they are rotating. There will be no set days off for Memorial Day, July 4, Labor ...

Consider a GI/Geo/1 queue with start-up period and single working vacation. When the system is in a closed state, an arriving customer leads to a start-up period. After the start-up period, the system becomes a normal service state. During the working vacation period, if there are customers at a service completion instant, the vacation can be interrupted and the server will come back to the nor...

We consider an appointment-based service system (for example, an outpatient clinic) for which appointments need to be scheduled before the service session starts. Patients with scheduled appointments may or may not show-up for their appointments. The service of scheduled patients can be interrupted by emergency requests that have a higher priority. We develop a framework which can be utilized i...

This paper constructs a two-stage mathematical programming model to solve the nurse scheduling problem in order to assign nurses to shifts over a scheduling period so that certain constraints (organizational and personal) are satisfied. In the first stage, the nurse optimal vacation schedules are solved by a self-schedule programming that can check for any violation of government regulations, h...

This work considers a preemptive priority queueing system with vacation, where the single server may break down imperfect coverage. Various combinations of vacation models have been studied by many scholars. A common assumption in these is that will only resume its normal service rate after over. However, such speculation more limited real-world situations. Hence, this study, be interrupted if ...

In this paper, a bulk arrival retrial queueing model with two phases of service symbolically denoted by M/(G1,G2)/1 has been discussed under Bernoulli vacation schedule to explore main ly its steady state behaviour using maximum entropy principle (MEP). We consider that customers arrive in batches according to Poisson distribution and a single server of the system provides his services in two p...

Many defects in manufacturing system are caused by human resources that show the significance of the human resources in manufacturing systems. Most manufacturers attempt to investigate the human resources in order to improve the work conditions and reduce the human error by providing a proper work-rest schedule. On the other hand, manufacturer deal with machine scheduling based on demand and wo...