Results 1 to 10 of about 68 (54)

A Novel Technique to Control the Accuracy of a Nonlinear Fractional Order Model of COVID-19: Application of the CESTAC Method and the CADNA Library [PDF]

open access: goldMathematics, 2021
In this paper, a nonlinear fractional order model of COVID-19 is approximated. For this aim, at first we apply the Caputo–Fabrizio fractional derivative to model the usual form of the phenomenon.
Samad Noeiaghdam   +2 more
doaj   +4 more sources

The Numerical Validation of the Adomian Decomposition Method for Solving Volterra Integral Equation with Discontinuous Kernels Using the CESTAC Method

open access: yesMathematics, 2021
The aim of this paper is to present a new method and the tool to validate the numerical results of the Volterra integral equation with discontinuous kernels in linear and non-linear forms obtained from the Adomian decomposition method.
Samad Noeiaghdam   +4 more
doaj   +1 more source

Days of Future Past: Why Race Matters in Metadata

open access: yesGenealogy, 2022
While marginalized as a juvenile medium, comics serve as an archive of our collective experience. Emerging with the modern city and deeply affected by race, class, and gender norms, comics are a means to understand the changes linked to identity and ...
Julian Carlos Chambliss   +3 more
doaj   +1 more source

Polynomial Spline Collocation Method for Solving Weakly Regular Volterra Integral Equations of the First Kind

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2022
The polynomial spline collocation method is proposed for solution of Volterra integral equations of the first kind with special piecewise continuous kernels.
Aleksandr Tynda   +2 more
doaj   +1 more source

A Novel Method for Solving Second Kind Volterra Integral Equations with Discontinuous Kernel

open access: yesMathematics, 2021
Load leveling problems and energy storage systems can be modeled in the form of Volterra integral equations (VIE) with a discontinuous kernel. The Lagrange–collocation method is applied for solving the problem. Proving a theorem, we discuss the precision
Samad Noeiaghdam, Sanda Micula
doaj   +1 more source

Dynamical Strategy to Control the Accuracy of the Nonlinear Bio-Mathematical Model of Malaria Infection

open access: yesMathematics, 2021
This study focuses on solving the nonlinear bio-mathematical model of malaria infection. For this aim, the HATM is applied since it performs better than other methods. The convergence theorem is proven to show the capabilities of this method.
Samad Noeiaghdam, Sanda Micula
doaj   +1 more source

An Integrated Genetic Algorithm and Homotopy Analysis Method to Solve Nonlinear Equation Systems

open access: yesMathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
Solving nonlinear equation systems for engineering applications is one of the broadest and most essential numerical studies. Several methods and combinations were developed to solve such problems by either finding their roots mathematically or formalizing such problems as an optimization task to obtain the optimal solution using a predetermined ...
Hala A. Omar, Muhammad Arif
wiley   +1 more source

A Comparative Study between Discrete Stochastic Arithmetic and Floating-Point Arithmetic to Validate the Results of Fractional Order Model of Malaria Infection

open access: yesMathematics, 2021
The researchers aimed to study the nonlinear fractional order model of malaria infection based on the Caputo-Fabrizio fractional derivative. The homotopy analysis transform method (HATM) is applied based on the floating-point arithmetic (FPA) and the ...
Samad Noeiaghdam   +3 more
doaj   +1 more source

A Valid Dynamical Control on the Reverse Osmosis System Using the CESTAC Method

open access: yesMathematics, 2020
The aim of this study is to present a novel method to find the optimal solution of the reverse osmosis (RO) system. We apply the Sinc integration rule with single exponential (SE) and double exponential (DE) decays to find the approximate solution of the
Samad Noeiaghdam   +4 more
doaj   +1 more source

Investigating mixed-precision for AGATA pulse-shape analysis [PDF]

open access: yesEPJ Web of Conferences
The AGATA project aims at building a 4π gamma-ray spectrometer consisting of 180 germanium crystals, each crystal being divided into 36 segments. Each gamma ray produces an electrical signal within several neighbouring segments, which is compared with a ...
Molina Roméo   +3 more
doaj   +1 more source

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