Results 21 to 30 of about 1,409,077 (321)

Approximate Solutions of the Damped Wave Equation and Dissipative Wave Equation in Fractal Strings

open access: yesFractal and Fractional, 2019
In this paper, we apply the local fractional Laplace variational iteration method (LFLVIM) and the local fractional Laplace decomposition method (LFLDM) to obtain approximate solutions for solving the damped wave equation and dissipative wave equation ...
Dumitru Baleanu, Hassan Kamil Jassim
doaj   +1 more source

Stability analysis of the soliton solutions for the generalized quintic derivative nonlinear Schrödinger equation

open access: yesResults in Physics, 2016
The propagation of hydrodynamic wave packets and media with negative refractive index is studied in a quintic derivative nonlinear Schrödinger (DNLS) equation.
Chen Yue, Aly Seadawy, Dianchen Lu
doaj   +1 more source

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

open access: yes, 2003
A 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.
Stolk, Christiaan C.
core   +5 more sources

One-Way Wave Equation Derived from Impedance Theorem

open access: yesAcoustics, 2020
The wave equations for longitudinal and transverse waves being used in seismic calculations are based on the classical force/moment balance. Mathematically, these equations are 2nd order partial differential equations (PDE) and contain two solutions with
Oskar Bschorr, Hans-Joachim Raida
doaj   +1 more source

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

How to obtain a covariant Breit type equation from relativistic Constraint Theory [PDF]

open access: yes, 1994
It is shown that, by an appropriate modification of the structure of the interaction potential, the Breit equation can be incorporated into a set of two compatible manifestly covariant wave equations, derived from the general rules of Constraint Theory ...
Berestetskii V B   +20 more
core   +4 more sources

Wave Profile for Breakdown Waves with a Large Current Behind the Wave Front [PDF]

open access: yes, 2017
For analytical solution of breakdown waves with a large current behind the wave front, we employ a one-dimensional, steady-state, three-component (electrons, ions, and neutral particles) fluid model.
Bowman, M., Griffiths, J., Hemmati, M.
core   +3 more sources

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

Nonlinear dynamics of wave packets in PT-symmetric optical lattices near the phase transition point

open access: yes, 2012
Nonlinear dynamics of wave packets in PT-symmetric optical lattices near the phase-transition point are analytically studied. A nonlinear Klein-Gordon equation is derived for the envelope of these wave packets. A variety of novel phenomena known to exist
Bender   +14 more
core   +1 more source

A Relativistic Quaternionic Wave Equation [PDF]

open access: yes, 2006
We study a one-component quaternionic wave equation which is relativistically covariant. Bi-linear forms include a conserved 4-current and an antisymmetric second rank tensor.
Adler S. L., Charles Schwartz, Wess J.
core   +11 more sources

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