Results 11 to 20 of about 100,503 (296)

Forward propagation of acoustic pressure pulses in 3D soft biological tissue [PDF]

open access: yesModeling, Identification and Control, 2006
A simulation method for forward propagation of acoustic pressure pulses in a medium with three-dimensional (3D) spatially-variable acoustic properties is presented.
Trond Varslot, Svein-Erik Måsøy
doaj   +1 more source

Variety interaction between k-lump and k-kink solutions for the generalized Burgers equation with variable coefficients by bilinear analysis

open access: yesResults in Physics, 2021
In this paper, we study the generalized Burgers equation with variable coefficients which is considered in soliton theory and generated by considering the Hirota bilinear operators. We retrieve some novel exact analytical solutions, including 2-lump-type
Ziqiang Li   +5 more
doaj   +1 more source

Exploring Invariance in Images through One-way Wave Equations

open access: yes, 2023
This is an improvement version, which fuses some parts from the preliminary work arXiv:2305 ...
Yinpeng Chen   +7 more
openaire   +3 more sources

Solitary-wave solutions of the Degasperis-Procesi equation by means of the homotopy analysis method [PDF]

open access: yes, 2010
The homotopy analysis method is applied to the Degasperis-Procesi equation in order to find analytic approximations to the known exact solitary-wave solutions for the solitary peakon wave and the family of solitary smooth-hump waves.
Abbasbandy, S., Parkes, E.J.
core   +1 more source

Simultaneous Imaging of Primaries and Multiples Based on Wavelet Estimation and Stereographic Imaging Condition

open access: yesIEEE Access, 2020
Multiple reflections contain abundant structural information about the subsurface because of their smaller reflection angles and wider coverage. Multiple imaging has increasingly attracted attention.
Peng Wang   +3 more
doaj   +1 more source

One-way wave-equation migration for wide-angle propagation in anisotropic media [PDF]

open access: yes, 2010
Seismic depth migration is a major component in the search for hydrocarbons. As new prospects for oil and gas often are found in areas with challenging subsurface structures, more advanced methods to find and evaluate these prospects are needed.
Pedersen, Ørjan
core   +2 more sources

A pseudodifferential equation with damping for one-way wave propagation in inhomogeneous acoustic media [PDF]

open access: yes, 2004
15 pagesA one-way wave equation is an evolution equation in one of the space directions that describes (approximately) a wave field. The exact wave field is approximated in a high frequency, microlocal sense. Here we derive the pseudodifferential one-way
Christiaan C. Stolk   +2 more
core   +2 more sources

Vector combined cnoidal wave and soliton solutions for a 3D partially nonlocal CNLSE

open access: yesResults in Physics, 2023
A 3D distributed-coefficient coupled nonlinear Schrödinger equation(CNLSE) with the partially nonlocal nonlinearity(PNN) for locality in two transverse directions and non-locality in the longitudinal direction becomes the center of attention in this ...
Yu Zhu   +4 more
doaj   +1 more source

Analytical wave solutions of the space time fractional modified regularized long wave equation involving the conformable fractional derivative

open access: yesKarbala International Journal of Modern Science, 2019
The space time fractional modified regularized long wave equation is a model equation to the gravitational water waves in the long-wave occupancy, shallow waters waves in coastal seas, the hydro-magnetic waves in cold plasma, the phonetic waves in ...
M. Hafiz Uddin   +3 more
doaj   +1 more source

Water waves resonance and its interaction with submerged breakwater

open access: yesResults in Engineering, 2022
Wave resonance phenomena in a basin can cause enormous damage to the environment. Resonance is caused by external forces coming into the basin with a similar period as the natural period of the basin.
I. Magdalena, G. Jonathan
doaj   +1 more source

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