Results 171 to 180 of about 714,444 (224)
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Geotechnical Testing Journal, 2005
Abstract The reflection of elastic waves from interfaces is a robust phenomenon extensively used by animals (bats and dolphins), nondestructive techniques, and medical diagnosis. This study addresses the design and implementation of P-wave reflection imaging to evaluate the internal variability in small-scale submerged, soil models.
J-S Lee, J Carlos Santamarina
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Abstract The reflection of elastic waves from interfaces is a robust phenomenon extensively used by animals (bats and dolphins), nondestructive techniques, and medical diagnosis. This study addresses the design and implementation of P-wave reflection imaging to evaluate the internal variability in small-scale submerged, soil models.
J-S Lee, J Carlos Santamarina
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1987
We have seen in Section 2–2 that the reflection amplitudes of an arbitrary profile tend to the Fresnel values as the thickness Δz of the profile tends to zero. An equivalent limit to consider is that of reflection by a profile of fixed extent, as the wavelength increases.
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We have seen in Section 2–2 that the reflection amplitudes of an arbitrary profile tend to the Fresnel values as the thickness Δz of the profile tends to zero. An equivalent limit to consider is that of reflection by a profile of fixed extent, as the wavelength increases.
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1994
This report is Aalborg University's first contribution to the MAS2-CT92 project: Full scale dynamic load monitoring of rubble mound breakwaters.
Helm-Petersen, J., Frigaard, Peter
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This report is Aalborg University's first contribution to the MAS2-CT92 project: Full scale dynamic load monitoring of rubble mound breakwaters.
Helm-Petersen, J., Frigaard, Peter
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1987
Consider electromagnetic waves of angular frequency ω, incident on a planar inhomogeneity of thickness (or characterizing length) Δz. When (ω/c)Δz ≫ 1, and at normal incidence, there are many wavelengths within the inhomogeneity and (for smooth profiles) the change in the dielectric function within a wavelength is small. This is known as the short wave
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Consider electromagnetic waves of angular frequency ω, incident on a planar inhomogeneity of thickness (or characterizing length) Δz. When (ω/c)Δz ≫ 1, and at normal incidence, there are many wavelengths within the inhomogeneity and (for smooth profiles) the change in the dielectric function within a wavelength is small. This is known as the short wave
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Gradual Reflection of Short Waves
SIAM Journal on Applied Mathematics, 1975Short wave asymptotic methods (geometrical optics, WKB, averaging and two-timing, etc.) fail to give information on the wave reflection caused by gradual variation of propagation speed with position. This paper examines plane wave propagation according to the classical wave equation in a medium of optical index of refraction changing analytically ...
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AIAA Journal, 2004
The study of the transition from regular to Mach reflection of shock waves has received considerable attention over the past decade, particularly because of the differences found between numerical and experimental data sets. Whereas this has now been satisfactorily shown to be due to wind-tunnel noise, it raises the issue of the effects of unsteady, or
Luke T. Felthun, Beric W. Skews
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The study of the transition from regular to Mach reflection of shock waves has received considerable attention over the past decade, particularly because of the differences found between numerical and experimental data sets. Whereas this has now been satisfactorily shown to be due to wind-tunnel noise, it raises the issue of the effects of unsteady, or
Luke T. Felthun, Beric W. Skews
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2010
The Rankine-Hugoniot equations presented in Chap. 3 include the equations for the calculation of the reflected pressure, given the incident overpressure and the ambient conditions. The reflected overpressure divided by the incident overpressure is the reflection factor.
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The Rankine-Hugoniot equations presented in Chap. 3 include the equations for the calculation of the reflected pressure, given the incident overpressure and the ambient conditions. The reflected overpressure divided by the incident overpressure is the reflection factor.
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Reflections on reflected waves in ‘YoungAdult’
The Journal of Physiology, 2022openaire +2 more sources
Reflection of topographic waves
1987In this chapter we intend to investigate the behavior of TW’s in channels when they are reflected by a vertical wall or a shore zone. To this end we consider the propagation of TW’s in semi-infinite channels. This configuration is especially of interest as a limit of elongated basins, for the distribution mechanism of TW-energy within an enclosed basin
Thomas Stocker, Kolumban Hutter
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Reflection of magnetoacoustic waves
Journal of Applied Mechanics and Technical Physics, 1972The problem of the reflection of magnetoacoustic waves at the boundary dividing an elastic medium from a fluid medium with infinite conductivity in the presence of an arbitrary constant magnetic field was treated in [1]. In writing down the boundary conditions the continuity of the tangential component of the magnetic field was used.
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