Results 41 to 50 of about 1,840,169 (238)

An Unfitted Method with Elastic Bed Boundary Conditions for the Analysis of Heterogeneous Arterial Sections

open access: yesMathematics, 2023
This manuscript presents a novel formulation for a linear elastic model of a heterogeneous arterial section undergoing uniform pressure in a quasi-static regime. The novelties are twofold.
Stephan Gahima   +4 more
doaj   +1 more source

Effective surface and boundary conditions for heterogeneous surfaces with mixed boundary conditions [PDF]

open access: yesJournal of Computational Physics, 2016
To deal with multi-scale problems involving transport from a heterogeneous and rough surface characterized by a mixed boundary condition, an effective surface theory is developed, which replaces the original surface by a homogeneous and smooth surface with specific boundary conditions. A typical example corresponds to a laminar flow over a soluble salt
Guo, Jianwei   +2 more
openaire   +4 more sources

Neumann boundary condition for Abelian BPS vortices

open access: yesJournal of High Energy Physics, 2023
We study abelian BPS vortices on a surface S with boundary, which satisfy the Neumann boundary condition on the norm of the scalar field, or equivalently, that the current along the boundary vanishes.
N. S. Manton, Boan Zhao
doaj   +1 more source

Yet Another Realization of Kerr/CFT Correspondence

open access: yes, 2009
The correspondence between the Kerr black hole and a boundary CFT has been conjectured recently. The conjecture has been proposed first only for the half of the CFT, namely for left movers.
Amsel A. J.   +21 more
core   +1 more source

Free boundary problems with Neuman boundary condition

open access: yesElectronic Journal of Differential Equations, 2019
In this work, we study the continuity of a free boundary in a class of elliptic problems, with a Neuman boundary condition. The main idea is to use a change of variable that reduces the problem to the one studied in [16].
Abdeslem Lyaghfouri, Abderachid Saadi
doaj  

Absorbing boundary conditions for simulation of gravitational waves with spectral methods in spherical coordinates

open access: yes, 2004
We present a new formulation of the multipolar expansion of an exact boundary condition for the wave equation, which is truncated at the quadrupolar order.
Aladl   +19 more
core   +2 more sources

Cubic spline interpolation based estimation of all story seismic responses with acceleration measurement at a limited number of floors

open access: yesJapan Architectural Review, 2020
Building damage assessment soon after a seismic event is a highly significant issue. Currently, sensor implementation on all the floors of a building comprising more than a few stories is not practical.
Kenzo Kodera   +2 more
doaj   +1 more source

On the Local Well-posedness of a 3D Model for Incompressible Navier-Stokes Equations with Partial Viscosity [PDF]

open access: yes, 2011
In this short note, we study the local well-posedness of a 3D model for incompressible Navier-Stokes equations with partial viscosity. This model was originally proposed by Hou-Lei in \cite{HouLei09a}.
Hou, Thomas Y., Shi, Zuoqiang, Wang, Shu
core   +1 more source

Accurate energy spectrum for double-well potential: periodic basis

open access: yes, 2010
We present a variational study of employing the trigonometric basis functions satisfying periodic boundary condition for the accurate calculation of eigenvalues and eigenfunctions of quartic double-well oscillators.
Arias de Saavedra F   +20 more
core   +1 more source

Boundary conditions as Dirac constraints [PDF]

open access: yesThe European Physical Journal C, 2001
In this article we show that boundary conditions can be treated as Lagrangian and Hamiltonian constraints. Using the Dirac method, we find that boundary conditions are equivalent to an infinite chain of second class constraints which is a new feature in the context of constrained systems.
Ahmad Shirzad   +1 more
openaire   +3 more sources

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