Results 31 to 40 of about 1,492,939 (282)

Coupling of Finite and Boundary Elements for Transient Eddy Current Problems

open access: yesAdvances in Electrical and Electronic Engineering, 2017
A symmetric coupling of methods of finite and boundary elements for numerical solution of transient eddy current problems is described. This is an essential step in modelling of electromagnetic forming of metalic sheets.
Dalibor Lukas   +4 more
doaj   +1 more source

Mixed finite elements for numerical weather prediction

open access: yes, 2012
We show how two-dimensional mixed finite element methods that satisfy the conditions of finite element exterior calculus can be used for the horizontal discretisation of dynamical cores for numerical weather prediction on pseudo-uniform grids.
Arakawa   +29 more
core   +1 more source

A fully discrete evolving surface finite element method [PDF]

open access: yes, 2012
In this paper we consider a time discrete evolving surface finite element method for the advection and diffusion of a conserved scalar quantity on a moving surface.
Charles M. Elliott   +2 more
core   +1 more source

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri   +7 more
wiley   +1 more source

The Trefftz finite elements modelling crack propagation

open access: yesComputer Assisted Methods in Engineering and Science, 2022
Investigation of crack propagation can sometimes be a crucial stage of engineering analysis. The T–element method presented in this work is a convenient tool to deal with it.
Henryk Sanecki, Andrzej P. Zieliński
doaj  

On consecutive primitive elements in a finite field [PDF]

open access: yes, 2014
For $q$ an odd prime power with $q>169$ we prove that there are always three consecutive primitive elements in the finite field $\mathbb{F}_{q}$. Indeed, there are precisely eleven values of $q \leq 169$ for which this is false.
Cohen, Stephen D.   +2 more
core   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang   +8 more
wiley   +1 more source

Demostració pràctica de la validesa dels models matemàtics en elements finits. Aplicació al model de Cross

open access: yesModelling in Science Education and Learning, 2013
The mathematical model's validity used in computer programs are based on a specific formula implemented leading commercial software. Since these programs use their own databases of materials sometimes the question arises of what the miscalculation in ...
Santiago Ferrándiz   +3 more
doaj   +1 more source

Fully Discrete Interpolation Coefficients Mixed Finite Element Methods for Semi-Linear Parabolic Optimal Control Problem

open access: yesIEEE Access, 2022
We use the fully discrete interpolation coefficient mixed finite element methods to solve the semi-linear parabolic optimal control problems. The space discretization of the state variable is separated using interpolation coefficient mixed finite ...
Jing Wang   +3 more
doaj   +1 more source

Cracked finite elements proposed for NASTRAN [PDF]

open access: yes, 1973
The recent introduction of special crack-tip singularity elements, usually referred to as cracked elements, has brought the power and flexibility of the finite-element method to bear much more effectively on fracture mechanics problems.
Aberson, J. A., Anderson, J. M.
core   +1 more source

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