Results 21 to 30 of about 607,769 (290)

Smoothed Corners and Scattered Waves [PDF]

open access: yesSIAM Journal on Scientific Computing, 2016
We introduce an arbitrary order, computationally efficient method to smooth corners on curves in the plane, as well as edges and vertices on surfaces in $\mathbb R^3$. The method is local, only modifying the original surface in a neighborhood of the geometric singularity, and preserves desirable features like convexity and symmetry.
Epstein, Charles L., O'Neil, Michael
openaire   +2 more sources

Current effects on scattering of surface gravity waves by bottom topography

open access: yes, 2005
Scattering of random surface gravity waves by small amplitude topography in the presence of a uniform current is investigated theoretically. This problem is relevant to ocean waves propagation on shallow continental shelves where tidal currents are often
Ardhuin, Fabrice, Magne, Rudy
core   +3 more sources

Back to Bohr: Quantum Jumps in Schrödinger’s Wave Mechanics

open access: yesQuantum Reports
The measurement problem of quantum mechanics concerns the question as to under which circumstances coherent wave evolution becomes disrupted to produce eigenstates of observables, instead of evolving superpositions of eigenstates.
Rainer Dick
doaj   +1 more source

Ocean waves across the Arctic: Attenuation due to dissipation dominates over scattering for periods longer than 19 s

open access: yesGeophysical Research Letters, 2016
The poorly understood attenuation of surface waves in sea ice is generally attributed to the combination of scattering and dissipation. Scattering and dissipation have very different effects on the directional and temporal distribution of wave energy ...
Fabrice Ardhuin   +3 more
doaj   +1 more source

Ballistic phonon lensing by the non-planar interfaces of embedded nanoparticles

open access: yesNew Journal of Physics, 2023
In this work, we investigate the scattering behavior of a ballistic phonon wave incident on a dopant spherical nanoparticle embedded within a pure crystal through molecular dynamics simulations.
Theodore Maranets, Yan Wang
doaj   +1 more source

A Procedure to Calculate First-Order Wave-Structure Interaction Loads in Wave Farms and Other Multi-Body Structures Subjected to Inhomogeneous Waves

open access: yesEnergies, 2021
A typical assumption when performing analytical, numerical, and experimental studies in wave–structure interaction in multi-body problems such as for wave farms and very large floating structures is the homogeneity of the wave field.
José Miguel Rodrigues
doaj   +1 more source

Seismic topographic scattering in the context of GW detector site selection

open access: yes, 2012
In this paper, we present a calculation of seismic scattering from irregular surface topography in the Born approximation. Based on US-wide topographic data, we investigate topographic scattering at specific sites to demonstrate its impact on Newtonian ...
Aki K   +14 more
core   +1 more source

Nucleon-nucleus scattering as a test of shell structure of some light mass exotic nuclei [PDF]

open access: yes, 2007
Shell model wave functions have been used to form microscopic g-folding optical potentials with which elastic scattering data from 8He, 10,11C, and 18,20,22O scattering on hydrogen has been analyzed.
Ajzenberg-Selove   +28 more
core   +2 more sources

Quasiparticle Scattering Interference in (K,Tl)FexSe2 Superconductors

open access: yes, 2011
We model the quasiparticle interference (QPI) pattern in the recently discovered (K,Tl)Fe_xSe2 superconductors. We show in the superconducting state that, due to the absence of hole pockets at the Brillouin zone center, the quasiparticle scattering ...
A. R. Bishop   +9 more
core   +1 more source

Resonant Scattering of Ultracold Atoms in Low Dimensions

open access: yes, 2008
Low energy scattering amplitudes for two atoms in one- and two-dimensional atomic wave guides are derived for short range isotropic and resonant interactions in high partial wave channels.
Laurent Schwartz, Ludovic Pricoupenko
core   +3 more sources

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