In this paper, it is studied about finite buffer bulk service queue M/G (a,b) /1 with multiple vacations and some analytical results, relations among queue length distributions, computations of state probabilities at various epochs are included.

The assumption that mood affects investors’ behavior in the field is gaining acceptance due to experimental studies and papers linking stock returns with environmental variables, such as weather and length of day. To identify mood effects this paper utilizes account level stock trading data from all investors in Finland, a country with significant variation in weather and length of day. While s...

OBJECTIVES The goal of this article was to test a series of established predictors of the hazard of moving for persons primarily in their 50s and 60s. We tested demographic covariates, resources, travel experience, and community and person ties using a prospective design. METHODS We employed data from the Health and Retirement Study, 1994 to 2002, based on a representative sample of household...

Kupershmidt and Tuenter have introduced reflection symmetries for the q-Bernoulli numbers and the Bernoulli polynomials in 2005 , 2001 , respectively. However, they have not dealt with congruence properties for these numbers entirely. Kupershmidt gave a quantization of the reflection symmetry for the classical Bernoulli polynomials. Tuenter derived a symmetry of power sum polynomials and the cl...

http://jvm.sagepub.com/content/17/1/17 The online version of this article can be found at: DOI: 10.1177/1356766710391132 2011 17: 17 Journal of Vacation Marketing Vellis Demosthenes Akoumianakis, Nikolas Vidakis, Anargyros Akrivos, Giannis Milolidakis, Dimitrios Kotsalis and George The Case Study of the eKoNES Building 'Flexible' vacation packages using collaborative assembly toolkits and dynam...

The M/C/1 queue with multiple vacations and gated service discipline is considered. We first provide an alternative approach to derive the Laplace-Stieltjes transform of the limiting waiting time distribution, which reveals the stochastic structure of the gated vacation system. Next we discuss the regenerative cycle of the gated vacation system. Based on these considerations, we carry our a tim...

• Planning and organising clinic-based and outreach activities. • Receiving and issuing supplies, including for operating theatre, the outpatient department, and refractive error services. • Making regular inventory reports and reordering when necessary to ensure that supplies are in stock. • Keeping track of accounting for the hospital or overall eye care programme and producing reports, inclu...

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 ...