Results 21 to 30 of about 647,949 (285)

A generalized differential equation compartmental model of infectious disease transmission

open access: yesInfectious Disease Modelling, 2021
For decades, mathematical models of disease transmission have provided researchers and public health officials with critical insights into the progression, control, and prevention of disease spread. Of these models, one of the most fundamental is the SIR
Scott Greenhalgh, Carly Rozins
doaj   +1 more source

Finite element methods respecting the discrete maximum principle for convection-diffusion equations [PDF]

open access: yesarXiv.org, 2022
Convection-diffusion-reaction equations model the conservation of scalar quantities. From the analytic point of view, solution of these equations satisfy under certain conditions maximum principles, which represent physical bounds of the solution.
G. Barrenechea, V. John, P. Knobloch
semanticscholar   +1 more source

Selecting a squeeze film damper model for solving problems of gas turbine engine rotor dynamics

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017
Various standard mathematical squeeze film damper (SFD) models that can be applied for solving rotor dynamics problems of gas turbine engines (GTE) are presently available.
M. K. Leontiev, M. N. Kutakov
doaj   +1 more source

Coexistence of multi-scroll chaotic attractors for a three-dimensional quadratic autonomous fractional system with non-local and non-singular kernel

open access: yesAlexandria Engineering Journal, 2021
In this paper, we present a numerical scheme and mathematical analysis for the famous three-dimensional quadratic autonomous self-govern system that happens to be chaotic with the coexistence of multi-scroll attractors.
D. Mathale   +2 more
doaj   +1 more source

Let’s have a coffee with the Standard Model of particle physics!

open access: yes, 2017
The Standard Model of particle physics is one of the most successful theories in physics and describes the fundamental interactions between elementary particles.
J. Woithe   +2 more
semanticscholar   +1 more source

A step-by-step tutorial on active inference and its application to empirical data

open access: yesJournal of Mathematical Psychology, 2021
The active inference framework, and in particular its recent formulation as a partially observable Markov decision process (POMDP), has gained increasing popularity in recent years as a useful approach for modeling neurocognitive processes.
Ryan Smith   +2 more
semanticscholar   +1 more source

Typicality vs. probability in trajectory-based formulations of quantum mechanics [PDF]

open access: yes, 2007
Bohmian mechanics represents the universe as a set of paths with a probability measure defined on it. The way in which a mathematical model of this kind can explain the observed phenomena of the universe is examined in general.
Bruno Galvan   +16 more
core   +1 more source

Age- and bite-structured models for vector-borne diseases

open access: yesEpidemics, 2015
The biology and behaviour of biting insects is a vitally important aspect in the spread of vector-borne diseases. This paper aims to determine, through the use of mathematical models, what effect incorporating vector senescence and realistic feeding ...
K.S. Rock, D.A. Wood, M.J. Keeling
doaj   +1 more source

Task-Driven Adaptive Statistical Compressive Sensing of Gaussian Mixture Models [PDF]

open access: yes, 2012
A framework for adaptive and non-adaptive statistical compressive sensing is developed, where a statistical model replaces the standard sparsity model of classical compressive sensing.
Carin, Lawrence   +3 more
core   +3 more sources

The Rate-Controlled Constrained-Equilibrium Approach to Far-From-Local-Equilibrium Thermodynamics

open access: yesEntropy, 2012
The Rate-Controlled Constrained-Equilibrium (RCCE) method for the description of the time-dependent behavior of dynamical systems in non-equilibrium states is a general, effective, physically based method for model order reduction that was originally ...
Hameed Metghalchi   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy