Results 31 to 40 of about 3,197,248 (349)

Flow Distribution and Heat Transfer Performance of Two-Phase Flow in Parallel Channels with Different Cross Section

open access: yesChemical Engineering Transactions, 2022
With the shortage of fossil energy, more attention is paid to two-phase flow due to the high heat transfer efficiency and uniform surface temperature. However, flow distribution in parallel channels is more complex than that of single-phase flow, which ...
Ping Yang   +5 more
doaj   +1 more source

Reliability Evaluation of Smart Meters Under Degradation-Shock Loads Based on Phase-Type Distributions

open access: yesIEEE 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

Inhomogeneous phase-type distributions and heavy tails [PDF]

open access: yesJournal 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

CMPH: a multivariate phase-type aggregate loss distribution

open access: yesDependence Modeling, 2017
We introduce a compound multivariate distribution designed for modeling insurance losses arising from different risk sources in insurance companies.
Ren Jiandong, Zitikis Ricardas
doaj   +1 more source

Randomized Threshold Strategy for Providing Flexible Priority in Multi-Server Queueing System with a Marked Markov Arrival Process and Phase-Type Distribution of Service Time

open access: yesMathematics, 2023
In this paper, we analyze a multi-server queueing system with a marked Markov arrival process of two types of customers and a phase-type distribution of service time depending on the type of customer.
A. N. Dudin, S. A. Dudin, O. S. Dudina
doaj   +1 more source

Impact of target site distribution for Type I restriction enzymes on the evolution of methicillin-resistant Staphylococcus aureus (MRSA) populations. [PDF]

open access: yes, 2013
A limited number of Methicillin-resistant Staphylococcus aureus (MRSA) clones are responsible for MRSA infections worldwide, and those of different lineages carry unique Type I restriction-modification (RM) variants.
Dryden, David T. F.   +15 more
core   +1 more source

A Reliability Modeling Method Based on Phase-Type Distribution Aiming at Shock Model

open access: yesIEEE Access, 2020
The traditional shock model generally describes the magnitude of the cumulative damage caused by a random shock sequence and compares the magnitude with a predetermined threshold to obtain the failure time of a component.
Long Wang, Xu Luo, Yue Li, Jia Tang
doaj   +1 more source

On Moments of Discrete Phase-Type Distributions [PDF]

open access: yes, 2005
Recently, an efficient and stable method to compute moments of first passage times from a subset of states classified as safe to the other states in ergodic discrete-time Markov chains (DTMCs) has been proposed. This paper shows that the same method can be used to compute moments of discrete phase-type (DPH) distributions, analyzes its complexity on ...
openaire   +2 more sources

Optimized deep learning based single-phase broken fault type identification for active distribution networks

open access: yesEnergy Reports, 2023
Single-phase broken faults occur frequently, affecting the reliability of distribution network. In order to effectively identify the fault type of single-phase broken fault, this paper proposes a new identification method, which is based on the ...
Yan Wu   +7 more
doaj   +1 more source

On a Dirichlet Process Mixture Representation of Phase-Type Distributions

open access: yes, 2021
An explicit representation of phase-type distributions as an infinite mixture of Erlang distributions is introduced. The representation unveils a novel and useful connection between a class of Bayesian nonparametric mixture models and phase-type ...
Daniel Ayala   +3 more
semanticscholar   +1 more source

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