Results 31 to 40 of about 2,570,065 (274)

One-Way Wave Operator

open access: yesAcoustics, 2022
The second-order partial differential wave Equation (Cauchy’s first equation of motion), derived from Newton’s force equilibrium, describes a standing wave field consisting of two waves propagating in opposite directions, and is, therefore, a “two-way ...
Hans-Joachim Raida
doaj   +1 more source

From the Newton Equation to the Wave Equation: The Case of Shock Waves [PDF]

open access: yesApplied Mathematics Research eXpress, 2017
We study the macroscopic limit of a chain of atoms governed by the Newton equation. It is known from the work of Blanc, Le Bris, Lions, that this limit is the solution of a nonlinear wave equation, as long as this solution remains smooth. We show, numerically and mathematically that, if the distances between particles remain bounded, it is not the case
Blanc, Xavier, Josien, Marc
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   +4 more sources

The Wave Equation for a Moving Source and a Moving Receiver

open access: yesMathematics
The ordinary 3D wave equation for nondissipative, homogeneous, isotropic media admits solutions where the point sources are permitted to move, but as shown in this paper, it does not admit solutions where the receiver is allowed to move. To overcome this
Hrvoje Dodig
doaj   +1 more source

Wave Overtopping Equation

open access: yesCoastal Engineering 1976, 1976
In the early 1950's the Corps of Engineers' Jacksonville District initiated a series of laboratory tests to investigate the overtopping of proposed levee sections for Lake Okeechobee, Florida. For economic reasons, the alternative to build levees with crest elevations that were at times below the limit of wave runup was investigated and the quantities ...
openaire   +2 more sources

Global solutions of wave equations with multiple nonlinear source terms under acoustic boundary conditions

open access: yesBoundary Value Problems, 2021
Under the acoustic boundary conditions, the initial boundary value problem of a wave equation with multiple nonlinear source terms is considered. This paper gives the energy functional of regular solutions for the wave equation and proves the decreasing ...
Shoubo Jin, Jian Li
doaj   +1 more source

Dispersive analytical wave solutions of three nonlinear dynamical water waves models via modified mathematical method

open access: yesResults in Physics, 2019
Here inside script, novel technique extended simple equation is employed to establish servable exact traveling wave solutions in the form of hyperbolic, trigonometric and expontional via our three selective models, which illustrated the validity of the ...
Dianchen Lu, Aly R. Seadawy, Asghar Ali
doaj   +1 more source

Eigenwavelets of the Wave Equation [PDF]

open access: yes, 2008
We study a class of localized solutions of the wave equation, called eigenwavelets, obtained by extending its fundamental solutions to complex spacetime in the sense of hyperfunctions. The imaginary spacetime variables y, which form a timelike vector, act as scale parameters generalizing the scale variable of wavelets in one dimension.
openaire   +2 more sources

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

The Bäcklund Transformations and Abundant Exact Explicit Solutions for a General Nonintegrable Nonlinear Convection-Diffusion Equation

open access: yesAbstract and Applied Analysis, 2012
The Bäcklund transformations and abundant exact explicit solutions for a class of nonlinear wave equation are obtained by the extended homogeneous balance method.
Yong Huang, Yadong Shang
doaj   +1 more source

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