Results 31 to 40 of about 1,736,707 (316)
Yield stress fluids method to determine the pore size distribution of a porous medium [PDF]
, 2014 In this paper a new method is presented in order to determine the pore size distribution in a porous medium. This original technique uses the rheological properties of some non-Newtonian yield stress fluids flowing through the porous sample.
AMBARI, Abdelhak +2 more
core +1 more source
Phase-type distributions in population genetics [PDF]
Theoretical Population Biology, 2018 Abstract Probability modelling for DNA sequence evolution is well established and provides a rich framework for understanding genetic variation between samples of individuals from one or more populations. We show that both classical and more recent models for coalescence (with or without recombination) can be described in terms of the ...
Hobolth, Asger +2 more
openaire +6 more sources
Recursive Approaches for Multi-Layer Dividend Strategies in a Phase-Type Renewal Risk Model
Risks, 2022 In this paper we consider a risk model with two independent classes of insurance risks in the presence of a multi-layer dividend strategy. We assume that both of the claim number processes are renewal processes with phase-type inter-arrival times.
Apostolos D. Papaioannou, Lewis Ramsden
doaj +1 more source
A Kronecker Algebra Formulation for Markov Activity Networks with Phase-Type Distributions
Mathematics, 2021 The application of theoretical scheduling approaches to the real world quite often crashes into the need to cope with uncertain events and incomplete information. Stochastic scheduling approaches exploiting Markov models have been proposed for this class
Alessio Angius +2 more
doaj +1 more source
Polarization Mode Noise in Ultra-Low Drift Phase Reference Distribution System over Fiber Network [PDF]
, 2005 The impact of polarization mode noise on the temporal drift of a delivered analogue phase reference signal through an optical fiber network is studied.
Shillue, William P. +4 more
core +1 more source
Inhomogeneous phase-type distributions and heavy tails [PDF]
Journal of Applied Probability, 2019 AbstractWe extend the construction principle of phase-type (PH) distributions to allow for inhomogeneous transition rates and show that this naturally leads to direct probabilistic descriptions of certain transformations of PH distributions. In particular, the resulting matrix distributions enable the carrying over of fitting properties of PH ...
Hansjörg Albrecher, Mogens Bladt
openaire +6 more sources
Mathematics in Applied Sciences and Engineering, 2020 Ordinary differential equations models have a wide variety of applications in the fields of mathematics, statistics, and the sciences. Though they are widely used, these models are sometimes viewed as inflexible with respect to the incorporation of time ...
Paul Hurtado, Cameron Richards
doaj +1 more source
Mathematics, 2021 We consider a queueing inventory with one essential and m optional items for sale. The system evolves in environments that change randomly. There are n environments that appear in a random fashion governed by a Marked Markovian Environment change process.
Jaison Jacob +4 more
doaj +1 more source
IEEE Access, 2020 To address the problem that high-reliability and long-life complex products are susceptible to coupled fault mechanisms, and to address the challenge of constructing a macro fault behavior model for reliability evaluation, the reliability of a smart ...
Dan Xu, Xiaoqi Xiao, Yu Haibo
doaj +1 more source
Mathematics, 2023 The non-Markovian systems represent almost all stochastic processes, except of a small class having the Markov property; it is a real challenge to analyze these systems. In this article, we present a general method of analyzing non-Markovian systems. The
Gabriel Ciobanu
doaj +1 more source