Results 11 to 20 of about 1,352 (222)

A Fluid Queue Driven by a Markovian Queue

open access: yes, 1997
We consider a fluid queue receiving its input from the output of a Markovian queue with finite or infinite waiting room. The input rate of the fluid queue is characterized by a Markov modulated rate process. We derive a new approach for the computation of the stationary buffer content. This approach leads to a numerically stable algorithm for which the
Sericola, Bruno, Tuffin, Bruno
core   +4 more sources

Rational acquisition of laboratory equipment: an accurate mathematical model to estimate the trade-offs in shared and nonshared equipment. [PDF]

open access: yesActa Crystallogr D Struct Biol
We present a quantitative framework combining cost modelling and queueing theory to estimate hourly access costs, waiting times and congestion levels for shared high‐end scientific equipment. The approach is general, illustrated with cryo‐electron microscopy examples, and implemented in an open‐access online calculator to support evidence‐based ...
Sorzano COS, Carazo JM.
europepmc   +2 more sources

Optimizing Cardiac Inpatient Flow and Resource Allocation in Low-Resource Settings Using Queuing Theory: Insights From a Tertiary Hospital in Bangladesh. [PDF]

open access: yesPublic Health Chall
This study applies queuing theory models (M/M/c/c and M/M/c/K) to optimize inpatient flow and resource allocation in the cardiology department of Sylhet MAG Osmani Medical College Hospital, Bangladesh. Using data from 6,277 patients in 2023, it identifies bottlenecks in CCU and PCCU, highlights bed shortages and overcrowding, and proposes reallocating ...
Uddin MB   +5 more
europepmc   +2 more sources

Markovian Demands on Two Commodity Inventory System with Queue-Dependent Services and an Optional Retrial Facility

open access: yesMathematics, 2022
The use of a Markovian inventory system is a critical part of inventory management. The purpose of this study is to examine the demand for two commodities in a Markovian inventory system, one of which is designated as a major item (Commodity-I) and the ...
K. Jeganathan   +7 more
doaj   +1 more source

A non markovian retrial queueing system

open access: yesJournal of Computational and Applied Mathematics, 2023
Funding for open access charge: Universidad de Málaga ...
Iván Atencia   +3 more
openaire   +3 more sources

STATISTICAL INFERENCE FOR M/M/1/N QUEUEING SYSTEM WITH BALKING, RENEGING AND REFLECTING BARRIER UNDER QUALITY CONTROL PROCESS [PDF]

open access: yesDelta Journal of Science, 2019
In this paper we develop the confidence intervals for estimatingthe expected value of the units in the system and the maximumlikelihood estimates of the parameters are derived for truncated single -channel Markovian queue with balking, reneging and ...
Elham Elebiary, K. A. M. Kotb
doaj   +1 more source

Covert queueing problem with a Markovian statistic [PDF]

open access: yes2021 IEEE Information Theory Workshop (ITW), 2021
Based on the covert communication framework, we consider a covert queueing problem that has a Markovian statistic. Willie jobs arrive according to a Poisson process and require service from server Bob. Bob does not have a queue for jobs to wait and hence when the server is busy, arriving Willie jobs are lost. Willie and Bob enter a contract under which
Arti D. Yardi, Tejas Bodas
openaire   +2 more sources

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

The Queueing Model MAP|PH|1|N with Feedback Operating in a Markovian Random Environment

open access: yesAustrian Journal of Statistics, 2016
Queueing systems with feedback are well suited for the description of message transmission and manufacturing processes where a repeated service is required. In the present paper we investigate a rather general single server queue with a Markovian Arrival
A.N. Dudin   +4 more
doaj   +1 more source

Queueing System with Potential for Recruiting Secondary Servers

open access: yesMathematics, 2023
In this paper, we consider a single server queueing system in which the arrivals occur according to a Markovian arrival process (MAP). The served customers may be recruited (or opted from those customers’ point of view) to act as secondary servers to ...
Srinivas R. Chakravarthy   +3 more
doaj   +1 more source

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