Results 41 to 50 of about 4,046,500 (265)

A discrete-time queueing system with changes in the vacation times

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2016
This paper considers a discrete-time queueing system in which an arriving customer can decide to follow a last come first served (LCFS) service discipline or to become a negative customer that eliminates the one at service, if any.
Atencia Ivan
doaj   +1 more source

Neuronal messenger ribonucleoprotein transport follows an aging Lévy walk

open access: yesNature Communications, 2018
The transport dynamics of messenger ribonucleoproteins in neurons is crucial to our neuronal functions, but the detail remains elusive. Song et al. show that they are transported along the dendrites in alternating run and rest phases with their own ...
Minho S. Song   +3 more
doaj   +1 more source

Servers dependency models in split-merge queueing systems. The case of exponential service [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
A split-merge queueing system with two servers, the service times of which are identically distributed and dependent according to different copulas, is considered.
Gorbunova, Anastasia V.   +1 more
doaj   +1 more source

Strong anomalous diffusion in two-state process with Lévy walk and Brownian motion

open access: yesPhysical Review Research, 2020
Strong anomalous diffusion phenomena are often observed in complex physical and biological systems, which are characterized by the nonlinear spectrum of exponents qν(q) by measuring the absolute qth moment 〈|x|^{q}〉.
Xudong Wang, Yao Chen, Weihua Deng
doaj   +1 more source

Effect of sojourn time distributions on the early dynamics of COVID-19 outbreak

open access: yesNonlinear dynamics, 2023
Compartmental models are commonly used in practice to investigate the dynamical response of infectious diseases such as the COVID-19 outbreak. Such models generally assume exponentially distributed latency and infectiousness periods.
H. Tunc, M. Sari, S. Kotil
semanticscholar   +1 more source

A discrete-time system with service control and repairs

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2014
This paper discusses a discrete-time queueing system with starting failures in which an arriving customer follows three different strategies. Two of them correspond to the LCFS (Last Come First Served) discipline, in which displacements or expulsions of ...
Atencia Ivan
doaj   +1 more source

Statistical Analysis of Message Delay in SIP Proxy Server

open access: yesJournal of Telecommunications and Information Technology, 2014
Single hop delay of SIP message going through SIP proxy server operating in carriers backbone network is being analyzed. Results indicate that message sojourn times inside SIP server in most cases do not exceed order of tens of milliseconds (99% of all ...
Pavel Abaev   +2 more
doaj   +1 more source

Sojourn Time Problems

open access: yesThe Annals of Probability, 1974
Abstract : It is supposed that in the time interval (0, infinity) a stochastic process is alternately in states A and B. Denote by alpha (1), beta (1), alpha (2), beta (2),... the lengths of the successive intervals spent in states A and B respectively. In this paper the distribution and the asymptotic distribution of the total time spent in state A (b)
openaire   +3 more sources

Kinetics of rhodopsin deactivation and its role in regulating recovery and reproducibility of rod photoresponse.

open access: yesPLoS Computational Biology, 2010
The single photon response (SPR) in vertebrate phototransduction is regulated by the dynamics of R* during its lifetime, including the random number of phosphorylations, the catalytic activity and the random sojourn time at each phosphorylation level ...
Giovanni Caruso   +6 more
doaj   +1 more source

A Survey on the Pseudo-process Driven by the High-order Heat-type Equation $\boldsymbol{\partial/\partial t=\pm\partial^N\!/\partial x^N}$ Concerning the Hitting and Sojourn Times [PDF]

open access: yes, 2012
Fix an integer N > 2 and let X = (X(t))t ≥ 0 be the pseudo-process driven by the high-order heat-type equation $\partial/\partial t=\pm\partial^N\!/\partial x^N$. The denomination “pseudo-process” means that X is related to a signed measure (which is not
Aim'e Lachal
semanticscholar   +1 more source

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