Results 11 to 20 of about 39,047,150 (349)

Analysis of Infection and Diffusion Coefficient in an SIR Model by Using Generalized Fractional Derivative

open access: yesFractal and Fractional
In this article, a diffusion component in an SIR model is introduced, and its impact is analyzed using fractional calculus. We have included the diffusion component in the SIR model. in order to illustrate the variations.
Ibtehal Alazman   +3 more
doaj   +3 more sources

SIMLR: Machine Learning inside the SIR model for COVID-19 Forecasting [PDF]

open access: yesForecasting, 2021
Accurate forecasts of the number of newly infected people during an epidemic are critical for making effective timely decisions. This paper addresses this challenge using the SIMLR model, which incorporates machine learning (ML) into the epidemiological ...
R. Vega, Leonardo Flores, R. Greiner
semanticscholar   +1 more source

A Modified SIR Model for the COVID-19 Contagion in Italy [PDF]

open access: yesIEEE Conference on Decision and Control, 2020
The purpose of this work is to give a contribution to the understanding of the COVID-19 contagion in Italy. To this end, we developed a modified Susceptible-Infected-Recovered (SIR) model for the contagion, and we used official data of the pandemic up to
G. Calafiore, C. Novara, C. Possieri
semanticscholar   +1 more source

Fractional SIR epidemiological models [PDF]

open access: yesScientific Reports, 2020
Abstract The purpose of this work is to make a case for epidemiological models with fractional exponent in the contribution of sub-populations to the incidence rate. More specifically, we question the standard assumption in the literature on epidemiological models, where the incidence rate dictating propagation of infections is taken ...
Taghvaei, Amirhossein   +3 more
openaire   +8 more sources

A Study on Predicting the Outbreak of COVID-19 in the United Arab Emirates: A Monte Carlo Simulation Approach

open access: yesMathematics, 2022
According to the World Health Organization updates, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused a pandemic between 2019 and 2022, with millions of confirmed cases and deaths worldwide.
Noor Alkhateeb   +3 more
doaj   +1 more source

State-of-charge estimation method for lithium-ion batteries based on competitive SIR model

open access: yesFrontiers in Energy Research, 2022
In order to meet the needs of life and production and ensure the battery is stable when using the battery, a scheme for reckoning the state of charge of lithium-ion batteries derived from the competitive SIR model is proposed. During the charging process
Gui-Min Xu
semanticscholar   +1 more source

Analytical solution of the SIR-model for the temporal evolution of epidemics: part B. Semi-time case

open access: yesJournal of Physics A: Mathematical and Theoretical, 2021
The earlier analytical analysis (part A) of the susceptible–infectious–recovered (SIR) epidemics model for a constant ratio k of infection to recovery rates is extended here to the semi-time case which is particularly appropriate for modeling the ...
R. Schlickeiser, M. Kröger
semanticscholar   +1 more source

An uncertain SIR rumor spreading model

open access: yesAdvances in Difference Equations, 2021
In this paper, an uncertain SIR (spreader, ignorant, stifler) rumor spreading model driven by one Liu process is formulated to investigate the influence of perturbation in the transmission mechanism of rumor spreading.
Hang Sun, Yuhong Sheng, Qing Cui
doaj   +1 more source

A modified age-structured SIR model for COVID-19 type viruses [PDF]

open access: yesScientific Reports, 2020
We present a modified age-structured SIR model based on known patterns of social contact and distancing measures within Washington, USA. We find that population age-distribution has a significant effect on disease spread and mortality rate, and ...
V. Ram, L. Schaposnik
semanticscholar   +1 more source

Mathematical analysis of COVID-19 by using SIR model with convex incidence rate

open access: yesResults in Physics, 2021
Our this manuscript is about a new COVID-19 SIR model, which contain three classes; Susceptible S(t), Infected I(t) and Recovered R(t) with Convex incidence rate.
Rahim Ud Din, E. Algehyne
semanticscholar   +1 more source

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