Results 11 to 20 of about 2,693,775 (331)
Phased Electromagnetic Acoustic Transducer Array for Rayleigh Wave Surface Defect Detection [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2020 A phased electromagnetic acoustic transducer (EMAT) array system has been developed for the detection and characterization of surface-breaking defects.
L. Xiang +3 more
semanticscholar +3 more sources
Wave attenuation in glasses: Rayleigh and generalized-Rayleigh scattering scaling. [PDF]
Journal of Chemical Physics, 2019 The attenuation of long-wavelength phonons (waves) by glassy disorder plays a central role in various glass anomalies, yet it is neither fully characterized nor fully understood.
Avraham Moriel +5 more
semanticscholar +3 more sources
Study on Rayleigh Wave Inversion for Estimating Shear-wave Velocity Profile [PDF]
ITB Journal of Engineering Science, 2003 Rayleigh wave or ground roll is a noise in seismic body waves. However, how to use this noise for soil characterization is very interesting since Rayleigh wave phase velocity is a function of compression-wave velocity, shear-wave velocity, density and ...
T.A. Sanny, Yoes Avianto
doaj +3 more sources
3-D crustal structure of the western United States: application of Rayleigh-wave ellipticity extracted from noise cross-correlations [PDF]
, 2014 We present a new 3-D seismic model of the western United States crust derived from a joint inversion of Rayleigh-wave phase velocity and ellipticity measurements using periods from 8 to 100 s. Improved constraints on upper-crustal structure result from
F. Lin, V. Tsai, B. Schmandt
semanticscholar +4 more sources
Foods, 2021 Many methods based on acoustic vibration characteristics have been studied to indirectly assess fruit ripeness via fruit firmness. Among these, the frequency of the 0S2 vibration mode measured on the equator has been examined, but soft-flesh fruit do not
Nayuta Arai +4 more
doaj +1 more source
Research and application of Rayleigh wave extraction method based on microtremors signal analysis
Frontiers in Physics, 2023 This study investigates the method and application of single-channel, three-component microtremor signal co-directional Rayleigh surface-wave extraction.
Qingling Du +3 more
doaj +1 more source
Rayleigh wave manipulation based on phase shift between two periodic surface corrugations
Results in Physics, 2023 The propagation of Rayleigh waves along solid surfaces has attracted great attention due to its ubiquity in seismic waves, non-destructive evaluation, acoustic surface wave devices, and so on.
Qiao-Mu Zhang +6 more
doaj +1 more source
Acoustic power measurements of oscillating flames [PDF]
, 1981 The acoustic power of an oscillating flame is measured. A turbulent premixed propane/air flame is situated near a pressure antinode of a standing wave in a laboratory combustion chamber. This standing wave is generated by a piston.
Valk, M.
core +7 more sources
Viscoelastic Rayleigh waves II [PDF]
Quarterly of Applied Mathematics, 1978 The number of possible surface waves on a viscoelastic half-space is investigated numerically as a function of the material parameters. The results are applied to simple theoretical models of viscoelastic behavior and also to experimental data. It is concluded that two surface waves are possible on some rocks and on nearly all solid polymers.
Currie, P. K., O'Leary, P. M.
openaire +2 more sources
A review on microtremor H/V spectral ratio method
地球与行星物理论评, 2021 The microtremor H/V spectral ratio is the ratio of the horizontal component to the vertical component of the ambient seismic noise at different frequencies, recorded at the earth surface.
Tongwei Qin +3 more
doaj +1 more source