Rayleigh waves
Effect on Reflection of Rayleigh Waves due to Size of Plane Barrier in Shallow Ocean
... of Rayleigh waves due to the barrier of different ...reflected waves are obtained by Wiener-Hopf technique and Fourier ...reflected Rayleigh waves. The reflected waves depend on ...
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Non linear enhancement of laser generated ultrasonic Rayleigh waves by cracks
... the Rayleigh wave in different ...incident Rayleigh wave ...the Rayleigh waves directly radiated away from the slot or crack and those reflected from the slot or ...the Rayleigh wave is ...
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Rayleigh Waves in a Non-Homogeneous, Thermo, Magneto, Prestressed Granular Material with Variable Density under the Effect of Gravity
... on Rayleigh waves in granular media is available in articles written by many authors such as Datta [2], Abd-Alla, El-Naggar and Ahmed [3, 4, 5, 10] , Shar- ma JN and Kaur [6], Oshima [7-8], Paria ...[9]. ...
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Air-Coupled Lamb and Rayleigh Waves for Remote NDE of Defects and Material Elastic Properties
... acoustic waves (SAWs, also “Rayleigh waves”). These waves propagate within a thin surface layer (~ one wavelength) of solids, thus being useful for selective testing of this area for its ...
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Sensitivity of ionosonde detection of atmospheric disturbances induced by seismic Rayleigh waves at different latitudes
... epicenter, Rayleigh waves are the most important source of coseismic infrasound because they propagate along Earth’s surface without significant attenuation of the amplitude due to geomet- rical spreading ...
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Rayleigh waves in a viscoelastic half space under initial hydrostatic stress in presence of the temperature field
... of Rayleigh waves in a viscoelastic ...viscoelastic Rayleigh waves has been derived, which involves the parameters connected with the temperature and the initial hydrostatic stress besides the ...
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Lateral variations of shallow shear velocity structure in southwestern Taiwan inferred from short period Rayleigh waves
... The obvious lateral heterogeneity of the shallow-depth crustal structure in southwestern Taiwan is inferred through the inversion of the short-period Rayleigh waves with peri- ods of 1.1 ∼ 5.5 sec. In this ...
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Amplification of gravity and Rayleigh waves in a layered water soil model
... surface waves (Rayleigh and Love) in layered media, we find the individual multipliers that determine the surface wave spectrum over the entire frequency ...and Rayleigh waves are one order of ...
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Thermo visco elastic Rayleigh waves under the influence of couple stress and gravity
... When viscosity, gravity, and couple-stress effects are neglected, the phase velocity equation 4.27 reduces to the thermo-elastic Rayleigh waves as presented by Chadwick [1].. ACKNOWLEDGE[r] ...
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Determination of Surface and Sub-Surface Cracks Location in Beams Using Rayleigh-Waves
... Abstract—Structural buildings are vulnerable to many types of damages that can occur through their life period. These damages may cause structure failure or at least decrease its efficiency. Dangerous damages occurring in ...
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Surface-wave imaging of the weakly-extended Malawi Rift from ambient-noise and teleseismic Rayleigh waves from onshore and lake-bottom seismometers
... Coherent Rayleigh waves are observed for nearly all stations including the lake-bottom instruments ...of Rayleigh-wave phase velocity between 9 and 25 s following the inversion procedure used in Jin ...
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Surface cracks in metals and their characteristics using Rayleigh waves
... This present study~ which started an a direct result of the phrase about Rayleigh waves ~y Morgan 1973 ,"that no satisfactory model for the reflection from a slot exists", has provided a[r] ...
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The use of reflected Rayleigh waves to study rough contact interfaces
... of Rayleigh waves to analyse tribological interfaces is ...using Rayleigh waves is that instead of travelling through the bulk of the material, they travel along the ...the Rayleigh ...
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In plane and out of plane measurements of Rayleigh waves using EMATs for characterising surface cracks
... of Rayleigh waves in the vicinity of defects propagating at different angles to the sample surface, which are more representative of real defects than slots machined normal to the ...the Rayleigh wave ...
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Rayleigh waves in a thermoelastic granular medium under initial stress
... Abstract. We study the effect of initial stress on the propagation of Rayleigh waves in a granular medium under incremental thermal stresses. We also obtain the frequency equa- tion, in the form of a ...
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Enhanced sensing and conversion of ultrasonic Rayleigh waves by elastic metasurfaces
... incident Rayleigh waves interacting with the longest resonators first, so the array is of decreasing ...of Rayleigh into S-waves, the scanning procedure includes, as well as the top, also the ...
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A study of Rayleigh waves in south western and eastern USA
... Up till the early 1960s the graphical peak and trough method (Brune, Nafe and Oliver, 1960) was used to find group velocity from surface waves. Observations beyond about 50s became impractical due to decreasing ...
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Rise time and source duration of the 2008 MW 7 9 Wenchuan (China) earthquake as revealed by Rayleigh waves
... 100-s Rayleigh wave at various station azimuths (red cir- cles) and that estimated from the first spectral-node period (blue ...100-s Rayleigh wave passing through the ...
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Nonlinear evolution of Rayleigh waves in an initial value context: Non-symmetric input and cross-flow
... As the viscosity parameter A -> oo the limiting situation is that of Brown and Smith (1996), while as the cross-flow parameter go in equation (5.4) increases it seems that the critica[r] ...
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Velocities of long period surface waves and microseisms and their use in structural studies. I. Mantle Love and mantle Rayleigh waves and the structure of the earth's upper mantle. II. Microseisms and their application to seismic exploration
... The phase velocity data are compared with theoretical dispersion curves of seven different ea rth models.. Th e significant features of these models are correlated [r] ...
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