Results 21 to 30 of about 13,572,436 (276)

Alternating-direction implicit finite difference methods for a new two-dimensional two-sided space-fractional diffusion equation

open access: yesAdvances in Difference Equations, 2018
According to the principle of conservation of mass and the fractional Fick’s law, a new two-sided space-fractional diffusion equation was obtained. In this paper, we present two accurate and efficient numerical methods to solve this equation.
Xiucao Yin, Shaomei Fang, Changhong Guo
doaj   +1 more source

The Lie group Euler methods of multibody system dynamics with holonomic constraints

open access: yesAdvances in Mechanical Engineering, 2018
The Euler methods on Lie group are developed for the differential–algebraic equations of multibody system dynamics with holonomic constraints. The implicit Euler method is used to solve the differential–algebraic equations as Euler–Lagrange equations on ...
Jieyu Ding, Zhenkuan Pan
doaj   +1 more source

The constraint-stabilized implicit methods on Lie group for differential-algebraic equations of multibody system dynamics

open access: yesAdvances in Mechanical Engineering, 2019
The implicit methods on Lie group are developed for multibody system dynamics. To avoid the violation of the displacement, velocity and acceleration constraints of the nonlinear differential-algebraic equations, the constraint-stabilized equations on Lie
Jieyu Ding, Zhenkuan Pan, Wei Zhang
doaj   +1 more source

Changing Euler Diagram Properties by Edge Transformation of Euler Dual Graphs [PDF]

open access: yes, 2009
Euler diagrams form the basis of several visual modelling notations, including statecharts and constraint diagrams. Recently, various techniques for automated Euler diagram drawing have been proposed, contributing to the Euler diagram generation problem:
Howse, John   +5 more
core   +1 more source

Mean Square Consistency On Numerical Solutions of Stochastic Wave Equation with Cubic Nonlinearities on 2D Rectangles

open access: yesMATEC Web of Conferences, 2017
In this article we study the mean square consistency on numerical solutions of stochastic wave equations with cubic nonlinearities on two dimensional rectangles.
Hazaimeh Haziem M.
doaj   +1 more source

A linear implicit Euler method for the finite element discretization of a controlled stochastic heat equation [PDF]

open access: yesIMA Journal of Numerical Analysis, 2021
AbstractWe consider a numerical approximation of a linear quadratic control problem constrained by the stochastic heat equation with nonhomogeneous Neumann boundary conditions. This involves a combination of distributed and boundary control, as well as both distributed and boundary noise.
Benner, P. ; https://orcid.org/0000-0003-3362-4103   +2 more
openaire   +4 more sources

Lumped-Circuits Model of Lossless Transmission Lines and Its Numerical Characteristics

open access: yesFrontiers in Energy Research, 2021
Aiming at the lumped-circuits model of the lossless transmission line in the digital simulation, the article discusses and analyzes the unit step response generation of the lumped-circuits model by comparing the numerical simulation results of the ...
Huiyi Zhou   +3 more
doaj   +1 more source

A General Method for Drawing Area-Proportional Euler Diagrams [PDF]

open access: yes, 2011
Area-proportional Euler diagrams have many applications, for example they are often used for visualizing data in medical and biological domains. There have been a number of recent research efforts to automatically draw Euler diagrams when the areas of ...
Howse, John   +5 more
core   +1 more source

A Graph Theoretic Approach to General Euler Diagram Drawing [PDF]

open access: yes, 2010
Euler diagrams are used in a wide variety of areas for representing information about relationships between collections of objects. Recently, several techniques for automated Euler diagram drawing have been proposed, contributing to the Euler diagram ...
Howse, John   +2 more
core   +1 more source

On the implicit density based OpenFOAM solver for turbulent compressible flows

open access: yesEPJ Web of Conferences, 2017
The contribution deals with the development of coupled implicit density based solver for compressible flows in the framework of open source package OpenFOAM. However the standard distribution of OpenFOAM contains several ready-made segregated solvers for
Fürst Jiří
doaj   +1 more source

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