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Dispersion velocity revisited

Celestial Mechanics and Dynamical Astronomy, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
San Sebastian I. L.   +3 more
openaire   +3 more sources

RESEARCH ON NONLINEAR VARIATION OF ELASTIC WAVE VELOCITY DISPERSION CHARACTERISTIC IN LIMESTONE DYNAMIC FRACTURE PROCESS

Fractals, 2022
The elastic wave propagating in rock has velocity dispersion characteristic that holds an imperative significance in rock engineering. This paper aims at study elastic wave velocity dispersion characteristic in limestone dynamic fracture process.
Zhibo Zhang   +5 more
semanticscholar   +1 more source

On the conformable nonlinear schrödinger equation with second order spatiotemporal and group velocity dispersion coefficients

, 2021
In this paper, exact traveling wave solutions of the conformable differential equations have been examined. By means of the wave transformation and properties of the conformable derivative (CV), conformable nonlinear Schrodinger equation (CNLSE) has been
H. Rezazadeh   +4 more
semanticscholar   +1 more source

Velocity dispersion estimation

SEG Technical Program Expanded Abstracts 2006, 2006
Summary In this work, we explore the feasibility of estimating velocity dispersion based on velocity analysis of pre-stack seismic data. We tested the methodology on a set of synthetic CMP gathers with different central frequencies. Pre-stack synthetic seismic data was generated from a model that consists of 509 homogeneous and isotropic layers and ...
Carlos Cobos, De‐hua Han
openaire   +1 more source

Velocity dispersions in sandstones

SEG Technical Program Expanded Abstracts 1987, 1987
Ultrasonic compressional (V,) and shear (V,) velocities were measured on 69 sandstone samples, at dried and watersaturated states under external confining pressure up to 50 MPa and internal pore pressure 1 MPa. Porosities of the samples ranged from 5 to 30 percent and volume clay content of the samples ranged from 0 to 50 percent.
De‐Hua Han, Amos Nur
openaire   +1 more source

The Velocity Dispersion And Dispersion Profile Of Abell 963

Symposium - International Astronomical Union, 1996
Abell 963 (z = 0.206) is still the best candidate for a true arc-counterarc lens configuration (Lavery & Henry 1988). A simple model explains the positions, lengths and patchy light distribution of the two arcs. Photometry indicates the arcs also have the same B-R color (Lavery & Henry 1988; Ellis et al. 1991).
R. J. Lavery, J. P. Henry
openaire   +1 more source

Raman solitons with group velocity dispersion

Physical Review E, 2006
We consider the coupled propagation of the pump and Stokes waves in a Raman active medium accounting for the group velocity walk off and group velocity dispersion. Interplay of the Raman coherence and the dispersion can lead to the formation of a complete band gap in the spectrum of linear waves consisting of the two consecutive subgaps located at ...
D V, Skryabin, A V, Yulin
openaire   +2 more sources

Seed Dispersal Velocity in Four Dwarfmistletoes

Science, 1965
By means of a high-speed photographic technique, the initial velocities of seeds were studied as they were expelled from the fruits of four Colorado dwarfmistletoes: Arceuthobium douglasii , A. campylopodum f. cyanocarpum , A. vaginatum f.
T E, Hinds, F G, Hawksworth
openaire   +2 more sources

Wave-velocity dispersion and rock microstructure

, 2019
Porosity, fluid type and rock texture significantly affect acoustic wave propagation, since velocity dispersion and attenuation in fluid saturated rocks are mainly caused by wave-induced local fluid flow between microcracks and intergranular pores.
Wei Cheng, J. Ba, L. Fu, M. Lebedev
semanticscholar   +1 more source

Dispersion of 3D Velocity Estimators

EAGE/SEG Workshop - Depth Imaging of Reservoir Attributes, 1998
We study the dispersion of the estimators of a 3D velocity model in presence of white noise and with a limited range of azimuths available.
S. Grion, P. Ruffo, F. Rocca
openaire   +1 more source

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