This paper deals with multi-server queueing system two kinds of Working Vacations (WVs) and impatient customers. A random timer is started whenever a customer comes into the system. The may abandon if service not completed before impatience expires. Each time after serving all customers, becomes empty then server begins 1st kind vacation. On returning from WV, 2nd WV has no When back either or ...

PALM-MARTINGALE CALCULUS, QUEUES WITH VACATIONS, BATCH MARKOVIAN ARRIVAL PROCESSES,SERVER SET-UP Using Palm-martingale calculus, we derive the workload characteristic function and queue length moment generating function for the BMAP IGl/1 . queue with server vacations. In the queueing system under study, the server may start a vacation at the completion of a service or at the arrival of a custo...

OBJECTIVE To compare psychological stress, quality of marital life, and disruptive homelife due to work among rural women of central Wisconsin who take vacations frequently and those who do not. METHODS Women were recruited from 1996 to 2001 for a prospective cohort study from the Marshfield Epidemiologic Study area, a geographic area in central Wisconsin. Stratified sampling was used to sele...

This paper considers a repairable system with a repairman, who can take multiple vacations. If the system fails and the repairman is on vacation, it will wait for repair until the repairman is available. Assume that the system cannot be repaired ‘‘as good as new’’ after failures. Under these assumptions, using the geometric process and the supplementary variable technique, some important reliab...

This study examined the relationship of the personality factors (Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism) with each of the three workaholism components i.e. working compulsively, working excessively and combined workaholics. As the study is of exploratory in nature, a sample of 145 academicians was drawn from the two universities of Jammu region (India), namel...

There are many practical situations that have both features of customer retrials and server vacations. The vacation policy is characterized by the vacation startup rules and vacation termination rules. The queueing system with retrials and vacations has been described in variety of ways according to the vacation rules and retrial policies such as constant retrial policy and linear retrial polic...

A novel lesion-mask free method based on a gamma mixture model was applied to myelin water fraction (MWF) maps to estimate the association between cortical thickness and myelin content, and how it differs between relapsing-remitting (RRMS) and secondary-progressive multiple sclerosis (SPMS) groups (135 and 23 patients, respectively). It was compared to an approach based on lesion masks. The gam...

In this note we identify a simple setup from which one may easily infer various decomposition results for queues with interruptions as well as càdlàg processes with certain secondary jump inputs. Special cases are processes with stationary or stationary and independent increments. In the Lévy process case, the decomposition holds not only in the limit but also at independent exponential times, ...