We consider how to jointly set the price and capacity in order to maximize the steady-state expected profit in a GI/GI/1 queue with a high rate of prospective customer arrivals. We show that the optimal price and service rate for the GI/GI/1 queue are such that the system operates in heavy traffic. Then, since it is not possible to provide analytic expressions for the exact optimal price and se...

Inspection Policy: There is an inspection calendar which covers the entire power distribution network in a period of 10 years, which is based in periodical inspection activities that take place at one, two, five and ten year intervals Usually there are 25 thousand orders to repair potential failure built based on the company inspection calendar and recorded system In order to assure the quality...

Th e aim of study was to investigate diff erent models for the evaluation of dairy bulls for male fertility. A dataset containing single insemination records performed on Brown Swiss cows and heifers reared in Eastern Italian Alps was used. Th e outcome variable (successful/ unsuccessful) was analyzed as binary trait. In the fi rst step raw conception rate was computed for each service sire, as...

Often many available web services provide similar functionality, but have different Quality of Service (QoS). In this case, a choice needs to be made to determine which services are selected to participate in a given service composition. This paper proposes a technique for QoS-aware service composition with the purpose to pro-actively minimize the rate of violations of a service level agreement...

This paper considers a heterogeneous M / G/2 queue. The service times at server 1 are exponentially distributed, and at server 2 they have a general distribution BO. We present an exact analysis of the queue length and waiting time distribution in case B(·) has a rational Laplace-Stieltjes transform. When B(·) is regularly varying at infinity of index -lI, we determine the tail behaviour of the...

he explosi ve growth of t he Intern et has created demand for new applications traditionally carried over circuit-switched networks. Such applications include audio telephony, video conferencing, and video-on-demand (VoD) services. New standards [1–3] are emerging to support these applications in the context of both connectionless and connection-oriented packet-switched networks. Asynchronous T...

Exceptional characteristics of Cloud computing has replaced all traditional computing. With reduced resource management and without in-advance investment, it has been victorious in making the IT world to migrate towards it. Microsoft announced its office package as Cloud, which can prevent people moving from Windows to Linux. As this drift is escalating in an exponential rate, the cloud environ...

the purpose of this study was to investigate disability and medical leave due to psychiatric disorders in patients referred to comission for psychiatric and neurological consultation of 682 patients who had been referred to the comission during 1993-94. results showed that psychiatric disorders and mood disorders led to occupational disability and medical leave at a significantly higher rate th...