Results 21 to 30 of about 181,461 (268)

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

Topological optimization for solids under heat and mass transfer using boundary element

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2013
The objetive of this work is to present the implementation of a topological-shape sensitivity formulation in a BEM analysis for simultaneous heat and mass transfer optimization problems.
Carla Tatiana Mota Anflor   +2 more
doaj   +1 more source

Recent Advancements in the Tribological Modelling of Rough Interfaces

open access: yesMachines, 2022
This paper analyses some effective strategies proposed in the last few years to tackle contact mechanics problems involving rough interfaces. In particular, we present Boundary Element Methods capable of solving the contact with great accuracy and, at ...
Nicola Menga   +2 more
doaj   +1 more source

Boundary elements and nuclear organization [PDF]

open access: yesBiology of the Cell, 2004
Abstract Functional compartmentalization of eukaryotic genomes is thought to be necessary for the proper regulation of gene expression. Chromatin insulators or boundary elements have been implicated in the establishment of this compartmentalization, as they may be involved in creating independent chromatin domains.
Maya, Capelson, Victor G, Corces
openaire   +2 more sources

SHIELD: a platform for high-throughput screening of barrier-type DNA elements in human cells

open access: yesNature Communications, 2023
Chromatin boundary elements contribute to the partitioning of mammalian genomes into topological domains to regulate gene expression. Certain boundary elements are adopted as DNA insulators for safe and stable transgene expression in mammalian cells ...
Meng Zhang   +5 more
doaj   +1 more source

Acoustical Boundary Elements: Theory and Virtual Experiments

open access: yesArchives of Acoustics, 2014
This paper presents an overview of basic concepts, features and difficulties of the boundary element method (BEM) and examples of its application to exterior and interior problems.
Rafael PISCOYA, Martin OCHMANN
doaj   +1 more source

Chosen Possibilities of ε-Fuzzy Boundary Elements Method Application in the Analysis of Conductivity Problems with Uncertainties

open access: yesComputer Assisted Methods in Engineering and Science, 2022
The paper presents a methodology of solving boundary problems with uncertainty parameters based on the use of interval perturbation numbers. This methodology allows for the analysis of very complex problems with different uncertain parameters.
Halina Witek, Bernard Witek
doaj   +1 more source

Boundary Element Methods with Weakly Imposed Boundary Conditions [PDF]

open access: yesSIAM Journal on Scientific Computing, 2019
We consider boundary element methods where the Calderón projector is used for the system matrix and boundary conditions are weakly imposed using a particular variational boundary operator designed using techniques from augmented Lagrangian methods. Regardless of the boundary conditions, both the primal trace variable and the flux are approximated.
Timo Betcke   +2 more
openaire   +4 more sources

p‐adaptive boundary elements [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 1986
AbstractThis paper presents the implementation of an adaptive philosophy to plane potential problems, using the direct boundary element method. After some considerations about the state of the art and a discussion of the standard approach features, the possibility of separately treating the modelling of variables and their interpolation through ...
Alarcón Álvarez, Enrique, Reverter, A.
openaire   +3 more sources

Effects of Alloying Elements on the Solution and Diffusion of Oxygen at Iron Grain Boundary Investigated by First-Principles Study

open access: yesMetals, 2023
The effects of alloying elements (Si, Cr, Mo) on the solution and diffusion of oxygen (O) atoms at the grain boundary of iron (Fe) Σ5(310)/[001] are investigated by the simulations of ab initio density functional theory (DFT). It is found that Si, Mo and
Jingdan Zhang   +9 more
doaj   +1 more source

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