Results 21 to 30 of about 1,106 (85)

Stochastic study of a retrial queue with impatience under a multi-level environment incorporating sensor-enabled shock detection

open access: yesScientific African
This study analyzes an M/M/1 retrial queue with impatient customers under a multi-level stochastic environment, utilizing a sensor as a notification mechanism for detecting random shocks.
C.T. Dora Pravina   +3 more
doaj   +1 more source

A polling system whose stability region depends on a whole distribution of service times

open access: yes, 2012
We present an example of a single-server polling system with two queues and an adaptive service policy where the stability region depends on the expected values of all the primitives and also on a certain exponential moment of the service-time ...
Chernova, Natalia   +2 more
core   +1 more source

Operational behavior of the MAP/G/1 queue under N‐policy with a single vacation and set‐up

open access: yesInternational Journal of Stochastic Analysis, Volume 15, Issue 2, Page 151-180, 2002., 2002
This paper considers the MAP/G/1 queue under N‐policy with a single vacation and set‐up. We derive the vector generating functions of the queue length at an arbitrary time and at departures in decomposed forms. We also derive the Laplace‐Stieltjes transform of the waiting time. Computation algorithms for mean performance measures are provided.
Ho Woo Lee, Boo Yong Ahn
wiley   +1 more source

On functionals of a marked Poisson process observed by a renewal process

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 26, Issue 7, Page 427-436, 2001., 2001
We study the functionals of a Poisson marked process Π observed by a renewal process. A sequence of observations continues until Π crosses some fixed level at one of the observation epochs (the first passage time). In various stochastic models applications (such as queueing with N‐policy combined with multiple vacations), it is necessary to operate ...
Jewgeni H. Dshalalow   +1 more
wiley   +1 more source

Analysis of Switching the Purchase Option in a Two-Commodity Perishable Inventory System

open access: yesJournal of Mathematics
MSC2020 Classification: 60K25 ...
N. Suresh Kumar   +4 more
doaj   +1 more source

Chemical Stability of Ceftazidime Compounded in Saline, Glycerin and Dexamethasone‐SP Solutions Stored at −20°C, 4°C and 25°C Over a 60 Day Period

open access: yesVeterinary Dermatology, Volume 36, Issue 6, Page 862-869, December 2025.
ABSTRACT Background Chronic cases of canine otitis externa (OE) often develop infections with Pseudomonas aeruginosa (PA). Given the organism's high level of resistance, veterinary surgeons often turn to compounded solutions. Limited data describing the stability and potency of compounded ceftazidime (CAZ) solutions are available, which may affect ...
McKenna Snidow   +6 more
wiley   +1 more source

An interarrival hyperexponential machine interference with balking, reneging, state‐dependent, spares, and an additional server for longer queues

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 27, Issue 12, Page 737-747, 2001., 2001
The aim of this paper is to treat the analytical solution of the truncated interarrival hyperexponential machine interference queue: H2/M/1/m + Y/m + Y in case of two branches with the following concepts: balking, reneging, state‐dependent, spares, and an additional server for longer queues.
Ragab Omarah Al-Seedy   +1 more
wiley   +1 more source

The Mx/G/1 queue with queue length dependent service times [PDF]

open access: yes, 2001
We deal with the MX/G/1 queue where service times depend on the queue length at the service initiation. By using Markov renewal theory, we derive the queue length distribution at departure epochs. We also obtain the transient queue length distribution at
Choi, Bong Dae   +3 more
core   +3 more sources

Palm theory for random time changes

open access: yesInternational Journal of Stochastic Analysis, Volume 14, Issue 1, Page 55-74, 2001., 2001
Palm distributions are basic tools when studying stationarity in the context of point processes, queueing systems, fluid queues or random measures. The framework varies with the random phenomenon of interest, but usually a one‐dimensional group of measure‐preserving shifts is the starting point.
Masakiyo Miyazawa   +2 more
wiley   +1 more source

Out of equilibrium functional central limit theorems for a large network where customers join the shortest of several queues

open access: yes, 2003
Customers arrive at rate N times alpha on a network of N single server infinite buffer queues, choose L queues uniformly, join the shortest one, and are served there in turn at rate beta.
Graham, Carl
core   +10 more sources

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