Results 71 to 80 of about 3,485 (230)

Analysis of an N–Policy GI/M/1 Queue in a Multi–Phase Service Environmentwith Disasters

International Journal of Applied Mathematics and Computer Science, 2018
This paper investigates an N-policy GI/M/1 queue in a multi-phase service environment with disasters, where the system tends to suffer from disastrous failures while it is in operative service environments, making all present customers leave the system ...
Jiang Tao, Ammar Sherif I., Chang Baoxian, Liu Liwei   +3 more
doaj   +1 more source

Insider/Outsider/Transsiders of Transnational Migration

Studies in Ethnicity and Nationalism, EarlyView.
ABSTRACT Migration is individually and collectively a challenging but also a transformative praxis and process. In my proposal, I present these in the context of transnational migration of two multigenerational families whose pioneers originally migrated from Turkey to Germany.
Halil Can
wiley   +1 more source

Sojourn times in a processor sharing queue with service interruptions [PDF]

, 1998
We study the sojourn time of customers in an $M/M/1$ queue with processor sharing service discipline and service interruptions. The lengths of the service interruptions have a general distribution, whereas the periods of service availability are assumed ...
Núñez Queija, R Rudesindo, Núñez Queija, R. (Rudesindo), Núñez Queija, Rudesindo, Núñez Queija, R.   +3 more
core  

The analysis of batch sojourn-times in polling systems [PDF]

, 2017
We consider a cyclic polling system with general service times, general switch-over times, and simultaneous batch arrivals. This means that at an arrival epoch, a batch of customers may arrive simultaneously at the different queues of the system. For the
de Koster, R.B.M., van der Gaast, J.P., Adan, I.J.B.F., Koster, MBM de, Adan, IJBF Ivo, Adan, I.J.B.F.; id_orcid, René B. M. de Koster, de Koster, Rene; id_orcid, Gaast, JP Jelmer van der, Jelmer P. van der Gaast, Ivo J. B. F. Adan, Adan, IJBF, Gaast, J.P. (Jelmer) van der, Gaast, Jelmer, Adan, I. (Ivo), Koster, M.B.M. (René) de   +15 more
core   +1 more source

“General Interest” Group or “Special Interest” Group? Understanding Nonworker Support for Unions

Sociological Forum, EarlyView.
ABSTRACT The labor movement has mounted a comeback in recent years, with breakthrough organizing and strikes at employers including Starbucks, Amazon, UPS, and the major automakers. The continuation of this trend, which could help stem rising economic inequality, may depend partly on how successful unions are at rallying public support. Yet this may be
Katherine Copas, Teke Wiggin
wiley   +1 more source

Sojourn time asymptotics in the M/G/1 processor sharing queue [PDF]

, 1998
We show for the M/G/1 processor sharing queue that the service time distribution is regularly varying of index $-nu$, $nu$ non-integer, iff the sojourn time distribution is regularly varying of index $-nu $.
Zwart, A.P., Zwart, Bert, Boxma, O.J. (Onno), Boxma, O.J., Zwart, A.P. (Bert), Boxma, Onno   +5 more
core  

Performance analysis of a complex queueing system with vacations in random environment

Advances in Mechanical Engineering, 2017
This article studies a complex queueing system with vacations in a multi-phase random environment. When the system is in operative phase i , i = 1 , 2 , … , n , customers are served one by one.
Jianjun Li, Liwei Liu
doaj   +1 more source

Modeling and Performance of Bonus-Malus Systems: Stationarity versus Age-Correction

Risks, 2014
In a bonus-malus system in car insurance, the bonus class of a customer is updated from one year to the next as a function of the current class and the number of claims in the year (assumed Poisson).
Søren Asmussen
doaj   +1 more source

Sojourn time distribution in some processor-shared queues

European Journal of Applied Mathematics, 1993
We develop a technique for obtaining asymptotic properties of the sojourn time distribution in processor-sharing queues. We treat the standard M/M/1-PS queue and its finite capacity version, the M/M/1/K-PS queue. Using perturbation methods, we construct asymptotic expansions for the distribution of a tagged customer's sojourn time, conditioned on that ...
Tan, Xiaoming, Knessl, Charles
openaire   +2 more sources

A comparison of normobaric and hypobaric hypoxia effects on cerebrovascular response pre and post maximal exercise

Experimental Physiology, EarlyView.
Abstract A lack of consensus remains on whether normobaric hypoxia (NH) and hypobaric hypoxia (HH) may differentially impact physiological factors affecting cerebrovascular regulation, particularly with an additional strenuous exercise component. We sought to compare the acute effects of NH and HH on global cerebral blood flow (gCBF) at an altitude ...
Rachel Turner, Giovanni Vinetti, Giacomo Strapazzon, Hannes Gatterer   +3 more
wiley   +1 more source