Results 31 to 40 of about 15,413,531 (300)

A compressible mixture model with phase transition [PDF]

open access: yes, 2013
We introduce a new thermodynamically consistent diffuse interface model of Allen--Cahn/Navier--Stokes type for multi-component flows with phase transitions and chemical reactions.
Giesselmann, Jan   +2 more
core   +1 more source

Analyzing Non-Markovian Systems by Using a Stochastic Process Calculus and a Probabilistic Model Checker

open access: yesMathematics, 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

On the Representation of Correlated Exponential Distributions by Phase Type Distributions

open access: yesACM SIGMETRICS Performance Evaluation Review, 2022
In this paper we present results for bivariate exponential distributions which are represented by phase type distributions. The paper extends results from previous publications [3, 11] on this topic by introducing new representations that require a smaller number of phases to reach some correlation coefficient and introduces different ways to describe ...
openaire   +3 more sources

Moment Distributions of Phase Type [PDF]

open access: yesStochastic Models, 2011
Moment distributions of phase-type and matrix-exponential distributions are shown to remain within their respective classes. We provide a probabilistic phase-type representation for the former case and an alternative representation, with an analytically appealing form, for the latter.
Bladt, Mogens   +1 more
openaire   +2 more sources

A Queueing System with Heterogeneous Impatient Customers and Consumable Additional Items

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2017
A single-server queueing system with a marked Markovian arrival process of heterogeneous customers is considered. Type-1 customers have limited preemptive priority over type-2 customers.
Baek Janghyun, Dudina Olga, Kim Chesoong
doaj   +1 more source

Advanced modelling and visualisation of liquid-liquid separations of complex sample components, with variable phase distribution and mode of operation [PDF]

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This research is about liquid-liquid chromatography modelling.
De Folter, Jozefus Johannes Martinus
core   +7 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

A Phase-Tagged Matrix Functional for Continuous-Review (s, S) Inventory Systems with Phase-Type Demand Inter-Arrival Times

open access: yesMathematics
The continuous-review (s,S) inventory system poses a fundamental analytical challenge: the cycle time and reorder undershoot are not independent when demand inter-arrival times are non-exponential, and scalar transform methods cannot resolve their joint ...
Lotfi Tadj
doaj   +1 more source

One Cut-Point Phase-Type Distributions in Reliability. An Application to Resistive Random Access Memories

open access: yesMathematics, 2021
A new probability distribution to study lifetime data in reliability is introduced in this paper. This one is a first approach to a non-homogeneous phase-type distribution. It is built by considering one cut-point in the non-negative semi-line of a phase-
Christian Acal   +3 more
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

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