Results 11 to 20 of about 667 (163)
Rational acquisition of laboratory equipment: an accurate mathematical model to estimate the trade‐offs in shared and nonshared equipment [PDF]
Acta Crystallographica Section D, Volume 82, Issue 6, Page 638-645, June 2026.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 ...
C. O. S. Sorzano, J. M. Carazo
wiley +2 more sources
Priority Multi-Server Queueing System with Heterogeneous Customers
Mathematics, 2020 In this paper, we analyze a multi-server queueing system with heterogeneous customers that arrive according to a marked Markovian arrival process. Customers of two types differ in priorities and parameters of phase type distribution of their service time.
Valentina Klimenok +2 more
doaj +1 more source
Retrial BMAP/PH/N Queueing System with a Threshold-Dependent Inter-Retrial Time Distribution
Mathematics, 2022 In this paper, we study a multi-server queueing system with retrials and an infinite orbit. The arrival of primary customers is described by a batch Markovian arrival process (BMAP), and the service times have a phase-type (PH) distribution.
Valentina I. Klimenok +3 more
doaj +1 more source
On Two Interacting Markovian Queueing Systems
Mathematics, 2019 In this paper, we study a Markovian queuing system consisting of two subsystems of an arbitrary structure. Each subsystem generates a multi-class Markovian arrival process of customers arriving to the other subsystem.
Valeriy A. Naumov +2 more
doaj +1 more source
Analysis of a k-Stage Bulk Service Queuing System with Accessible Batches for Service
Mathematics, 2021 In most of the service systems considered so far in queuing theory, no fresh customer is admitted to a batch undergoing service when the number in the batch is less than a threshold.
Achyutha Krishnamoorthy +2 more
doaj +1 more source
MARKOVIAN QUEUES WITH CORRELATED ARRIVAL PROCESSES [PDF]
Asia-Pacific Journal of Operational Research, 2007 In an attempt to examine the effect of dependencies in the arrival process on the steady state queue length process in single server queueing models with exponential service time distribution, four different models for the arrival process, each with marginally distributed exponential inter-arrivals to the queueing system, are considered.
openaire +2 more sources
Nonidentifiability of the Two-State Markovian Arrival Process [PDF]
Journal of Applied Probability, 2010 In this paper we consider the problem of identifiability for the two-state Markovian arrival process (MAP2). In particular, we show that the MAP2is not identifiable, providing the conditions under which two different sets of parameters induce identical stationary laws for the observable process.
Wiper, Michael Peter +2 more
openaire +4 more sources
The Queueing Model MAP|PH|1|N with Feedback Operating in a Markovian Random Environment
Austrian 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
Analysis of queueing model with processor sharing discipline and customers impatience
Operations Research Perspectives, 2018 Queueing systems with processor sharing represent the adequate models for sharing the resources, e.g., components of a computer or a bandwidth of communication systems.
A.N. Dudin +3 more
doaj +1 more source
Performance Analysis of Hybrid MTS/MTO Systems with Stochastic Demand and Production
Mathematics, 2020 We present a comprehensive numerical approach with reasonably light complexity in terms of implementation and computation for assessing the performance of hybrid make-to-stock (MTS)/make-to-order (MTO) systems.
Dieter Fiems +3 more
doaj +1 more source