In this paper we study a queueing model of assembly-like manufacturing operations. This study was motivated by an examination of a circuit pack testing procedure in an AT&T factory. However, the model may be representative of many manufacturing assembly operations. We assume that customers from n classes arrive according to independent Poisson processes with the same arrival rate into a singles...

This paper represents linkage network of queues consisting of biserial and parallel servers linked to a common server in series with a flowshop scheduling system consisting of two machines. The significant transportation time of the jobs from one machine to another is also considered. Further, the completion time of jobs/customers (waiting time + service time) in the queue network is the setup ...

T paper develops a model of dynamic pricing with endogenous intertemporal demand. In the model, there is a monopolist who sells a finite inventory over a finite time horizon. The seller adjusts prices dynamically to maximize revenue. Customers arrive continually over the duration of the selling season. At each point in time, customers may purchase the product at current prices, remain in the ma...

We consider a continuous review perishable (s, S) inventory system with a service facility consisting of a waiting line of finite capacity and a single server. Two types of customers, ordinary and negative, arrive according to a Markovian Arrival Process (MAP). An ordinary customer joins the queue and a negative customer removes some ordinary customers from the queue. Unlike the conventional me...

We study a queueing system having a mixture of a special semi-Markov process (SSMP) and a Poisson process as the arrival process, where the Poisson arrival is regarded as interfering traffic. It is shown by numerical examples that the SSMP customers receive worse treatment than Poisson customers, i.e., the mean waiting time of SSMP customers is longer than that of Poisson customers. We also pro...

This paper considers a discrete-time queue with a gate. The system has a single server and a gate. Customers arrive to the system according to a batch Bernoulli process and wait for the next gate opening in front of the gate. When the gate opens, all the customers who are waiting at the gate move into the inside of the gate. The server serves the customers only inside the gate. The gate closes ...

AIM Healthcare facility management requires the optimisation of the quality of services offered. METHODS The Authors adopted a questionnaire as a means to assess customer satisfaction and needs. The Questionnaire has been designed to address adults, i.e., parents or guardians of children attending the Paediatric unit as patients. To estimate their degree of satisfaction, either regarding the ...

Today no body interested to wait for food in restaurant. Some restaurants initially provide more waiting chairs for customers However, waiting chairs alone would not solve a problem, and the service time may need to be improved. This shows a need of a numerical model for the restaurant management to understand the situation better. This paper aims that, using queuing theory satisfies the model ...

In this paper, an M/M/1 queue with working vacation and vacation interruption is investigated. The server is supposed to take a working vacation whenever the system becomes empty and if there are at least N customers waiting in the system at a service completion instant, vacation interruption happens and the server resumes a normal working period. A matrix geometric approach is employed to obta...

background and aims: visit quality is a crucial component of patient-physician interaction that its inadequacy can negatively influence the diagnosis and treatment efficiency. the waiting time and visit length are important determinants of quality in the outpatient care setting. thus, the aim of this study was to determine waiting time and visit length and to compare them before implementation ...