Results 31 to 40 of about 3,544,307 (156)

Upscaling of Permeability Field of Fractured Rock System: Numerical Examples

Journal of Applied Mathematics, 2012
When the permeability field of a given porous medium domain is heterogeneous by the existence of randomly distributed fractures such that numerical investigation becomes cumbersome, another level of upscaling may be required.
Kai Bao, Amgad Salama, Shuyu Sun
doaj   +1 more source

Numerical Validation of Multiphysic Imperfect Interfaces Models

Frontiers in Materials, 2020
We investigate some mathematical and numerical methods based on asymptotic expansions for the modeling of bonding interfaces in the presence of linear coupled multiphysic phenomena.
Serge Dumont, Michele Serpilli, Raffaella Rizzoni, Frédéric C. Lebon   +3 more
doaj   +1 more source

The restoration of constraints in nonholonomic problems - Numerical examples [PDF]

, 1969
Numerical examples for restoration of constraints in nonholonomic ...
Damoulakis, J. N.
core  

Error estimates of a high order numerical method for solving linear fractional differential equations [PDF]

, 2016
In this paper, we first introduce an alternative proof of the error estimates of the numerical methods for solving linear fractional differential equations proposed in Diethelm [6] where a first-degree compound quadrature formula was used to approximate ...
Yan, Yubin, Ford, Neville J., Li, Zhiqiang   +2 more
core   +1 more source

Inverse problem for quadratic differential pencil: numerical examples

, 2021
This data set contains the program code in MATLAB/GNU Octave for obtaining numerical examples in [1]. The data generated by this code are also included. The theoretical description of the method and of the initial data are provided in [1].
Bondarenko, N (via Mendeley Data), Bondarenko, Natalia   +1 more
core   +2 more sources

Index event bias—a numerical example [PDF]

Journal of Clinical Epidemiology, 2013
Studies of determinants of recurrent disease often give unexpected results. In particular, well-established risk factors may seem not to have much influence on the recurrence risk. Recently, it has been argued that such paradoxical findings may be because of the bias caused by the selection of patients based on the occurrence of an earlier episode of ...
Smits, Luc J. M., van Kuijk, Sander M. J., Leffers, Pieter, Peeters, Louis L., Prins, Martin H., Sep, Simone J. S.   +5 more
openaire   +3 more sources

Total Energy and Forces: Some Numerical Examples

, 2010
Numerical examples of calculations of total energy, equation of state and Hellman-Feynman forces are given. The calculation of first principles phonons is also exemplified with fcc Al and bcc U.
Mebarek Alouani, Oleksiy Grechnyev, Alouani, M., Eriksson, O., Per Andersson, Anna Delin, Delin, Anna,, Andersson, P., Olle Eriksson, Wills, J. M., John M. Wills, Grechnyev, O.   +11 more
core   +1 more source

Maximum-Profit Inventory Model with Generalized Deterioration Rate

Mathematics, 2022
We developed a maximum profit inventory model with a generalized deterioration rate where the selling rate is dependent on the inventory level that is an extension of two published papers.
Yu-Lan Wang, Ming-Li Chen, Peterson Julian   +2 more
doaj   +1 more source

Fast Numerical Solution of Fredholm Integral Equations with Stationary Kernels

, 1982
A fast recursive matrix method for the numerical solution of Fredholm integral equations with stationary kernels is derived. IfN denotes the number of nodal points, the complexity of the algorithm isO(N 2), which should be compared toO(N 3) for ...
Ljung, Stefan,, Ljung, Lennart,
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Dynamical Analysis of Two-Dimensional Fractional-Order-in-Time Biological Population Model Using Chebyshev Spectral Method

Fractal and Fractional
In this study, we investigate the application of fractional calculus to the mathematical modeling of biological systems, focusing on fractional-order-in-time partial differential equations (FTPDEs). Fractional derivatives, especially those defined in the
Ishtiaq Ali
doaj   +1 more source