Results 1 to 10 of about 1,397,215 (290)

BOUNDARY ELEMENT METHOD

open access: yesRudarsko-geološko-naftni Zbornik, 1993
This paper includes main theses, proofs, and procedures of Boundary Element Method (BEM). The computer program. announced in 1981, for the calculation of stresses and strains around underground opening was used, comprising plane strain state for elastic ...
Mladen Hudec, Lidija Frgić
doaj   +1 more source

Extended Coherence Function on The Topography for Generated Non-Uniform Record By Using Stochastic Method [PDF]

open access: yesJournal of Structural and Construction Engineering, 2021
This study focuses on modeling spatial variation of earthquake ground motion using numerical methods. wave passage effect, incoherence effect and local site conditions effect are the effective parameters on this phenomenon which its investigated in ...
mohsen isari   +2 more
doaj   +1 more source

Effect of Deformed and Plain Rebars on the Behavior of Lightly Reinforced Boundary Elements [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2020
In recent earthquakes common failure modes of lightly reinforced shear walls includes rebar fracture and out of plane buckling of boundary elements.
Mohammad Ali Pourakbar   +1 more
doaj   +1 more source

Mortar Boundary Elements [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2010
We establish a mortar boundary element scheme for hypersingular boundary integral equations representing elliptic boundary value problems in three dimensions. We prove almost quasi-optimal convergence of the scheme in broken Sobolev norms of order 1/2.
Healey, Martin, Heuer, Norbert
openaire   +5 more sources

Numerical Investigation of Composite Shear Walls with Different Types of Steel and Concrete Materials as Boundary Elements [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2020
The main purpose of this study is to numerically assess the effect of boundary elements with different types of steel and concrete materials on nonlinear performance of composite steel–reinforced concrete wall (CSRCW) by employing ABAQUS software.
Ali Kheyroddin   +2 more
doaj   +1 more source

HIERARCHICAL BOUNDARY ELEMENTS [PDF]

open access: yesComputers & Structures, 1985
In this paper we show the possibility of applying adaptive procedures as an alternative to the well-known philosophy of standard Boundary Elements. The three characteristic steps of adaptive procedures, i.e. hierarchical shape functions families, indicator criteria, and a posteriori estimation, can be defined in order to govern an automatic refinement ...
Alarcón Álvarez, Enrique   +2 more
openaire   +3 more sources

Epigenetic Regulation of Human T-Cell Leukemia Virus Gene Expression

open access: yesMicroorganisms, 2021
Viral and cellular gene expression are regulated by epigenetic alterations, including DNA methylation, histone modifications, nucleosome positioning, and chromatin looping. Human T-cell leukemia virus type 1 (HTLV-1) is a pathogenic retrovirus associated
Lee Ratner
doaj   +1 more source

Effect of Debonding of Rebars on the Seismic Response of Boundary Elements of Lightly Reinforced Shear Walls [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2020
Rebar fracture in boundary elements of lightly reinforced shear walls in recent earthquakes motivated research on the minimum longitudinal reinforcement of shear walls.
Afshin Hossein Sharifzadeh   +1 more
doaj   +1 more source

An Application of Isogeometric Analysis and Boundary Integral Element Method for Solving Nonlinear Contact Problems

open access: yesApplied Sciences, 2020
A novel method to solve nonlinear contact between two bodies with plane strain behavior is presented in this paper. This method is based on the Boundary Integral Equation (BIE) and the Isogeometric Analysis (IGA).
Stephanie Virginia Camacho Gutiérrez   +3 more
doaj   +1 more source

Generation of Non-uniform support accelerations of topographic site using one recorded accelerogram [PDF]

open access: yesJournal of Structural and Construction Engineering, 2020
This study investigates method of producing non-uniform support acceleration in actual site condition. Factors affecting the non-uniform excitation of topographic site include time delay between the arrival time of incident wave at the canyon floor and ...
Mohsen Isari   +3 more
doaj   +1 more source

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