Results 21 to 30 of about 145,247 (288)

Wave propagation in nonlocal orthotropic micropolar elastic solids

open access: yesArchives of Mechanics, 2021
The presented paper is concerned with the propagation of Rayleigh waves in an orthotropic nonlocal micropolar elastic half-space. The main aim of the paper is to derive dispersion equations of Rayleigh wave as well as Stroh formalism for the orthotropic ...
D.X. Tung
doaj   +1 more source

Shear wave generation using a spiral electromagnetic acoustic transducer [PDF]

open access: yes, 2006
A spiral electromagnetic acoustic transducer (EMAT) is efficient in eddy current generation and has been used for surface defect inspection using Rayleigh waves or thickness gauging based on plane waves in echo mode.
Baillie, Iain   +5 more
core   +1 more source

Shallow S-wave Velocity Profile Estimation using Surface Velocity and Microtremor HVSR with a Linear Velocity Increase Approach

open access: yesJournal of Mathematical and Fundamental Sciences, 2023
We propose a simple method for 1D S-wave velocity (Vs) profile estimation using a measured surface S-wave velocity (V1) and peak frequency of the observed microtremor horizontal-to-vertical spectral ratio (HVSR).
Andi Muhamad Pramatadie   +2 more
doaj   +1 more source

Anomalous surface waves from Lop Nor nuclear explosions: Observations and numerical modeling [PDF]

open access: yes, 1998
Surface waves from the Chinese test site of Lop Nor are analyzed using long-period and broadband stations located at regional and teleseismic distances and at different azimuths. For most azimuths, strong Love waves between 0.02 and 0.045 Hz are observed
Avouac, Jean-Philippe   +2 more
core   +1 more source

Emerging beam resonances in atom diffraction from a reflection grating [PDF]

open access: yes, 2010
We report on the observation of emerging beam resonances, well known as Rayleigh-Wood anomalies and threshold resonances in photon and electron diffraction, respectively, in an atom-optical diffraction experiment.
Bum Suk Zhao   +3 more
core   +2 more sources

Asymptotic Formulation for the Rayleigh Wave on a Nonlocally Elastic Half-Space

open access: yesVibration, 2023
This paper deals with the Rayleigh wave, propagating on a nonlocally elastic, linearly isotropic half-space, excited by a prescribed surface loading. The consideration develops the methodology of hyperbolic–elliptic models for Rayleigh and Rayleigh-type ...
Danila A. Prikazchikov
doaj   +1 more source

Atoms riding Rayleigh waves

open access: yesJournal of Physics: Condensed Matter, 2010
Under special kinematic conditions helium atoms impinging upon a crystal surface can be inelastically trapped into a surface bound state and ride the created Rayleigh wave. This special case of phonon-assisted selective adsorption, leading to an atom-phonon bound state (atomic polaron), can explain previously unassigned resonant features observed in ...
BENEDEK, GIORGIO   +3 more
openaire   +3 more sources

Rayleigh–bloch waves in CMUT arrays [PDF]

open access: yesIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2014
Using the small-signal electrical equivalent circuit of a capacitive micromachined ultrasonic transducer (CMUT) cell, along with the self and mutual radiation impedances of such cells, we present a computationally efficient method to predict the frequency response of a large CMUT element or array.
Atalar, A., Köymen H., Oğuz H.
openaire   +4 more sources

Horizontal rotation signals detected by "G-Pisa" ring laser for the Mw=9.0, March 2011, Japan earthquake [PDF]

open access: yes, 2012
We report the observation of the ground rotation induced by the Mw=9.0, 11th of March 2011, Japan earthquake. The rotation measurements have been conducted with a ring laser gyroscope operating in a vertical plane, thus detecting rotations around the ...
A Cochard   +22 more
core   +2 more sources

Modeling linear Rayleigh wave sound fields generated by angle beam wedge transducers

open access: yesAIP Advances, 2017
In this study, the reciprocity theorem for elastodynamics is transformed into integral representations, and the fundamental solutions of wave motion equations are obtained using Green’s function method that yields the integral expressions of sound beams ...
Shuzeng Zhang   +3 more
doaj   +1 more source

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