Results 41 to 50 of about 1,702,334 (237)

A mathematical system of COVID-19 disease model: Existence, uniqueness, numerical and sensitivity analysis

open access: yesMethodsX, 2023
A compartmental mathematical model of spreading COVID-19 disease in Wuhan, China is applied to investigate the pandemic behaviour in Iran. This model is a system of seven ordinary differential equations including individual behavioural reactions ...
Khadijeh Sadri   +2 more
doaj  

Finite Difference Schemes for MCM and AMSS

open access: yesImage Processing On Line, 2011
This article refers to algorithms based on finite difference schemes for computing mean and affine curvature evolutions of digital images, introduced by Alvarez and Morel [L. Alvarez, J.M. Morel, “Formalization and computational aspects of image analysis”
Marco Mondelli, Adina Ciomaga
doaj   +1 more source

Modeling and Simulation of Flue Gas Desulfurization Using Slurry of Fine Activated Carbon Particles [PDF]

open access: yesEngineering and Technology Journal, 2010
The main objective of the present work is to investigate thefeasibility of using a slurry of fine activated carbon particles ...
Asmaa I. Eliass, Neran K. Ibrahim
doaj   +1 more source

A Method for Modeling Acoustic Waves in Moving Subdomains

open access: yesAcoustics, 2022
Forward modeling plays a key role in both the creation of predictive models and the study of the surrounding environment through inversion methods. Due to their competitive computational cost and modest algorithmic complexity, finite difference methods ...
Milan Brankovic, Mark E. Everett
doaj   +1 more source

An Investigation of Natural Convection Heat Transfer in a Square Enclosure Filled with Nanofluid [PDF]

open access: yesEngineering and Technology Journal, 2011
In this research, numerical solution of natural convection heat transfer of nanofluids in two-dimensional square enclosures is obtained for different values of Rayleigh numbers and volume fraction of nanofluids.
Ayad M. Salman
doaj   +1 more source

A Fourth-order Finite Difference Solver For Poisson's Equation Via The Half-sweep Arithmetic Mean (Hsam) Method [PDF]

open access: yes, 2005
The main purpose ofthis paper is to validate the efficiency and accuracyof the Half-Sweep Arithmetic Mean (HSAM) method using the fourth orderfinite difference approximation equation to solve one-dimensionalPoisson's equation. In this paper, we formulate
al, J. S. (J)
core  

Simulation of Metasurfaces in Finite Difference Techniques

open access: yes, 2016
We introduce a rigorous and simple method for analyzing metasurfaces, modeled as zero-thickness electromagnetic sheets, in Finite Difference (FD) techniques.
Achouri, Karim   +2 more
core   +1 more source

An Implicit Finite Difference Method for a Forced Kdv Equation [PDF]

open access: yes, 2008
A finite difference method is developed to solve a forced KdV equation representing a surface elevation of fluid flowing on a channel with a small bump at the bottom.
A, A. (Achirul), Wiryanto, L. H. (L)
core  

Convergent finite difference methods for one-dimensional fully nonlinear second order partial differential equations [PDF]

open access: yes, 2013
This paper develops a new framework for designing and analyzing convergent finite difference methods for approximating both classical and viscosity solutions of second order fully nonlinear partial differential equations (PDEs) in 1-D.
Feng, Xiaobing   +2 more
core   +1 more source

A New Smoothness Indicator of Adaptive Order Weighted Essentially Non-Oscillatory Scheme for Hyperbolic Conservation Laws

open access: yesMathematics, 2020
Adaptive order weighted essentially non-oscillatory scheme (WENO-AO(5,3)) has increased the computational cost and complexity of the classic fifth-order WENO scheme by introducing a complicated smoothness indicator for fifth-order linear reconstruction ...
Omer Musa, Guoping Huang, Mingsheng Wang
doaj   +1 more source

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