Spectral Element Method for the Elastic/Acoustic Waveguide Problem in Anisotropic Metamaterials
IEEE Access, 2021 Waveguide problems are fundamental to elastic and acoustic wave propagation, where we are interested in finding the propagation constants and modal patterns of waveguide modes.
An Qi Ge +3 more
doaj +1 more source
Legendre spectral element method for solving sine-Gordon equation
Advances in Difference Equations, 2019 In this paper, we study the Legendre spectral element method for solving the sine-Gordon equation in one dimension. Firstly, we discretize the equation by Legendre spectral element in space and then discretize the time by the second-order leap-frog ...
Mahmoud Lotfi, Amjad Alipanah
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3D Airborne EM Forward Modeling Based on Time-Domain Spectral Element Method
Remote Sensing, 2021 Airborne electromagnetic (AEM) method uses aircraft as a carrier to tow EM instruments for geophysical survey. Because of its huge amount of data, the traditional AEM data inversions take one-dimensional (1D) models.
Changchun Yin +6 more
doaj +1 more source
A 2.5D BEM-FEM using a spectral approach to study scattered waves in fluid–solid interaction problems [PDF]
, 2019 42nd International Conference on Boundary Elements and other Mesh Reduction Methods, BEM/MRM 2019; ITeCons-University of Coimbra, Coimbra; Portugal; 2 July 2019 through 4 July 2019.
Cruz Muñoz, Juan +3 more
core +1 more source
Spectral gaps of Schrödinger operators with periodic singular potentials [PDF]
, 2009 By using quasi-derivatives we develop a Fourier method for studying the spectral gaps of one dimensional Schrodinger operators with periodic singular potentials v.
Djakov, Plamen Borissov +1 more
core +1 more source
Equivariant spectral triples on the quantum SU(2) group [PDF]
, 2002 We characterize all equivariant odd spectral triples for the quantum SU(2) group acting on its L_2-space and having a nontrivial Chern character. It is shown that the dimension of an equivariant spectral triple is at least three, and given any element of
Chakraborty, Partha Sarathi +1 more
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Development of numerical technique by Galerkin approach of spectral element method for hybrid beam
AIP Advances, 2016 This paper introduces a Galerkin spectral element method (GSEM) for hybrid beam. The considered beam model depends upon the first order shear deformation theory (FSDT) is taken into account.
Muhammad Nauman Bashir, M. O. Ahmad
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Modeling seismic wave propagation and amplification in 1D/2D/3D linear and nonlinear unbounded media [PDF]
, 2010 To analyze seismic wave propagation in geological structures, it is possible to consider various numerical approaches: the finite difference method, the spectral element method, the boundary element method, the finite element method, the finite volume ...
Bard P. Y. +19 more
core +12 more sources
Efficient method for the solution of Maxwell’s equations for nanostructured materials [PDF]
ITM Web of Conferences, 2019 The calculation of the electromagnetic field in nanostructured materials and nano-optoelectronic devices, when the wavelength of the incident radiation is comparable with the size of the structural elements, requires the exact solution of Maxwell's ...
Semenikhin Igor
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Fluorescent Excitation of Spectral Lines in Planetary Nebulae [PDF]
, 2000 Fluorescent excitation of spectral lines is demonstrated as a function of temperature-luminosity and the distance of the emitting region from the central stars of planetary nebulae.
Ahern F. J. +12 more
core +3 more sources