Results 41 to 50 of about 3,544,307 (156)

Computational solutions for Eikonal equation by differential quadrature method

open access: yesAlexandria Engineering Journal, 2022
This article presents an efficient method to solve of Eikonal equation by the new differential quadrature method. The purpose of this article is to obtain the accuracy and performance method for the Eikonal equation.
Mehrullah Mehr, Davood Rostamy
doaj   +1 more source

Numerical solution of systems of differential equations using operational matrix method with Chebyshev polynomials

open access: yesJournal of Taibah University for Science, 2018
In this study, we introduce an effective and successful numerical algorithm to get numerical solutions of the system of differential equations. The method includes operational matrix method and truncated Chebyshev series which represents an exact ...
Yalçın Öztürk
doaj   +1 more source

Numerical technique in plasticity including solution advancement control

open access: yes, 1986
Numerical techniques applied to the consistent formulation of plasticity, which is based on convex analysis, are investigated. For each time step the stress is found as the projection in complementary energy of the elastic stress onto the set of ...
Samuelsson, Alf,   +8 more
core   +1 more source

Algebraic and numerical exploration of free energies for materials with memory

open access: yesElectronic Journal of Differential Equations, 2015
We study the forms of a range of free energy functionals for materials with memory for two types of strain history, namely sinusoidal and exponential behaviours.
Giovambattista Amendola   +2 more
doaj  

Exergy in Chemical Reactions of Combustion and Gasification Part 2: Some Numerical Examples [PDF]

open access: yesTransactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2011
The exergy concept applied to chemical reactions of combustion and gasification has been presented and discussed in detail. All the essential cases will be taken into account, namely the equimolar and non–equimolar — homogeneous and heterogeneous ...
Jaroslav KOZACZKA, Pavel KOLAT
doaj   +1 more source

Numerical upscaling for heterogeneous materials in fractured domains [PDF]

open access: yes, 2021
We consider numerical solution of elliptic problems with heterogeneous diffusion coefficients containing thin highly conductive structures. Such problems arise e.g. in fractured porous media, reinforced materials, and electric circuits.
Siyang Wang   +9 more
core   +1 more source

Lyapunov-type inequalities and eigenvalue bounds for the Airy operator

open access: yesDemonstratio Mathematica
We study a second-order boundary value problem associated with the Airy operator. Lyapunov-type inequalities are established and applied to derive explicit lower bounds for the eigenvalues. Numerical examples are provided to illustrate the results.
Jleli Mohamed
doaj   +1 more source

Refined Literal Indeterminacy and the Multiplication Law of Sub-Indeterminacies [PDF]

open access: yesNeutrosophic Sets and Systems, 2015
In this paper, we make a short history about: the neutrosophic set, neutrosophic numerical components and neutrosophic literal components, neutrosophic numbers, neutrosophic intervals, neutrosophic hypercomplex numbers of dimension n, and elementary ...
Florentin Smarandache
doaj  

A Numerical Fractional Spline for Solving System of Fractional Differential Equations [PDF]

open access: yesKirkuk Journal of Science
Fractional-order differential equations are fundamental in diverse scientific and engineering fields, including population dynamics, optimal control, and physics.
Faraidun Hamasalh, Paywast Hasan
doaj   +1 more source

Modeling exospheres: analytical and numerical methods with application examples

open access: yesFrontiers in Astronomy and Space Sciences
Exospheres, the tenuous gas environments surrounding planets, planetary satellites, and cometary comae, play a significant role in mediating the interactions of these astronomical bodies with their surrounding space environments.
Valeriy Tenishev   +5 more
doaj   +1 more source

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