Results 61 to 70 of about 10,042,261 (173)

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

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
This research examines a queueing‐inventory model that includes two perishable commodities, each having a distinct lifetime, service duration, lead time, and individual (s, Q) ordering policy. The system consists of two finite‐capacity waiting zones for two distinct types of clients, with arrivals governed by independent Poisson processes.
N. Suresh Kumar   +5 more
wiley   +1 more source

Non-identifiability of the two state Markovian Arrival process [PDF]

open access: yes
In this paper we consider the problem of identifiability of the two-state Markovian Arrival process (MAP2). In particular, we show that the MAP2 is not identifiable and conditions are given under which two different sets of parameters, induce identical ...
Michael P. Wiper   +2 more
core  

Bulk Queue Model With Optional Service and Service Interruption

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
In the present article, we investigate a queuing system in which units arrive in random batch sizes according to a Poisson process, while service is provided to individual units on a one‐by‐one basis. The service mechanism comprises a mandatory service phase followed by an optional service phase, undertaken according to the unit’s requirements.
Sunil Kumar Sharma   +6 more
wiley   +1 more source

On identifiability of MAP processes [PDF]

open access: yes
Two types of transitions can be found in the Markovian Arrival process or MAP: with and without arrivals. In transient transitions the chain jumps from one state to another with no arrival; in effective transitions, a single arrival occurs.
Michael P. Wiper   +2 more
core  

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
Shin, Yang Woo   +3 more
core   +1 more source

Navigating the Waves: The Global Pandemic's Impact on Container Shipping and Freight Rates Across Different Policy Scenarios

open access: yesNaval Research Logistics (NRL), Volume 72, Issue 7, Page 975-993, October 2025.
ABSTRACT The COVID‐19 pandemic has reverberated across global industries, including the international container shipping industry, where freight rates have become highly volatile. However, shipping lines appeared to thrive, particularly during the pandemic's initial 2 years.
Shiyuan Zheng, Changmin Jiang
wiley   +1 more source

A matrix-geometric solution for the multiserver nonpreemptive priority queueing model with mixed priorities. [PDF]

open access: yes
This paper describes the analysis of multiserver queues with nonpreemptive mixed priorities. Such priority structures occur, for example, in initiator settings within the mainframe operating system MVS: job classes have to be assigned to initiators and ...
Leemans, Herlinde, Dedene, Guido
core  

Extending Causal Metamodeling to a non-Markovian Queue

open access: yes
12 ...
Amaranath, Pracheta   +3 more
openaire   +2 more sources

On a non-Markovian queueing problem under a control operating policy and start-up times [PDF]

open access: yes, 1982
summary:A non-Markovian queueing system with Poisson input is studied under a modified operating rule called "control operating policy" in which the server begins "start-up" only when the queue length reaches a fixed number $n(\geq 1)$.
Gohain, Ruby, Borthakur, Arun
core   +1 more source

Improving efficiency within the manufacturing sector through the implementation of queue-length dependent bulk service strategies with vacation scheduling

open access: yesSongklanakarin Journal of Science and Technology (SJST)
The study examines the batch arrival queue-length-dependent bulk service with multiple vacations. Service provision is that the batch depends upon the queue length. The study incorporates supplementary variables on account of variations in service time
S. Karpagam, B. Somasundaram
doaj  

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