Results 21 to 30 of about 906,917 (283)

Noninvasive acoustic time-of-flight measurements in heated, hermetically-sealed high explosives using a convolutional neural network

open access: yesMachine Learning with Applications, 2022
We present a data-driven technique for measuring the time-of-flight through material sealed within a container. Time-of-flight measurement provides a noninvasive means of quantifying the sound speed profile within a material by transmitting an acoustic ...
John Greenhall   +4 more
doaj   +1 more source

On a batch arrival queuing system equipped with a stand-by server during vacation periods or the repairs times of the main server [PDF]

open access: yes, 2011
We study a queuing system which is equipped with a stand-by server in addition to the main server. The stand-by server provides service to customers only during the period of absence of the main server when either the main server is on a vacation or it ...
Lukas, CA   +6 more
core   +1 more source

Identification of waiting time distribution of M/G/1, Mx/G/1, GIr/M/1 queueing systems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
This paper brings out relations among the moments of various orders of the waiting time of the 1st customer and a randomly selected customer of an arrival group for bulk arrivals queueing models, and as well as moments of the waiting time (in queue) for ...
A. Ghosal, S. Madan
doaj   +1 more source

Facilitating Numerical Solutions of Inhomogeneous Continuous Time Markov Chains Using Ergodicity Bounds Obtained with Logarithmic Norm Method

open access: yesMathematics, 2020
The problem considered is the computation of the (limiting) time-dependent performance characteristics of one-dimensional continuous-time Markov chains with discrete state space and time varying intensities. Numerical solution techniques can benefit from
Alexander Zeifman   +4 more
doaj   +1 more source

Analysis of unreliable bulk queue with statedependent arrivals [PDF]

open access: yesJournal of Industrial Engineering International, 2013
In this paper, we investigate a single-server Poisson input queueing model, wherein arrivals of units are in bulk. The arrival rate of the units is state dependent, and service time is arbitrary distributed. It is also assumed that the system is subject to breakdown, and the failed server immediately joins the repair facility which takes constant ...
Singh, Charan Jeet   +2 more
openaire   +2 more sources

On some queueing systems with server vacations, extended vacations, breakdowns, delayed repairs and stand-bys [PDF]

open access: yes, 2012
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This research investigates a batch arrival queueing system with a Bernoulli scheduled vacation and random system breakdowns.
Khalaf, Rehab
core   +7 more sources

Performance analysis of bulk arrival queue with balking, optional service, delayed repair and multi-phase repair

open access: yesAin Shams Engineering Journal, 2018
In this investigation, single repairable server queueing system with bulk input and state dependent rates is analyzed by considering the general distributions for the repair, delay to repair and service processes.
Charan Jeet Singh   +2 more
doaj   +1 more source

A discrete-time infinite-server batch arrival queue with application to serverless computing

open access: yesCroatian Operational Research Review
Serverless computing systems behave like an infinite server queue, dynamically expanding the number of instances to handle incoming batch tasks. In serverless computing, to leverage its scalability, efficiency, and cost-effectiveness, it is essential to ...
Veena Goswami
doaj   +1 more source

PH/PH/1 Bulk Arrival and Bulk Service Queue

open access: yesInternational Journal of Computer Applications, 2015
This paper studies two stochastic bulk arrivals and bulk services PH/PH/1 queue Models (A) and (B) with k1 and k2 as the number of phases of PH arrival and PH service distributions respectively. The system has infinite storing capacity and the arrival and service sizes are finite valued random variables.
Ramanarayanan.R Ramanarayanan.R   +2 more
openaire   +1 more source

Analytically Simple and Computationally Efficient Results for the GIX/Geo/c Queues

open access: yesJournal of Probability and Statistics, 2019
A simple solution to determine the distributions of queue-lengths at different observation epochs for the model GIX/Geo/c is presented. In the past, various discrete-time queueing models, particularly the multiserver bulk-arrival queues, have been solved
Mohan L. Chaudhry   +2 more
doaj   +1 more source

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