Results 21 to 30 of about 48,276 (267)

Influencing Factors of Shear Wave Radiation of a Dipole Source in a Fluid-Filled Borehole

open access: yesEnergies, 2022
In shear wave far detection logging, dipole-source radiation is the main factor influencing the amplitude of the reflected shear waves. In this paper, a method is derived with the far-field asymptotic solution to calculate the dipole-source radiation of ...
Hao Wang   +7 more
doaj   +1 more source

Reference Values for Shear Wave Elastography of Neck and Shoulder Muscles in Healthy Individuals

open access: yesUltrasound International Open, 2018
Purpose to establish reference values for ultrasound shear-wave elastography for pericranial muscles in healthy individuals (m. trapezius, m. splenius capitis, m. semispinalis capitis, m. sternocleidomastoideus and m. masseter).
Caroline Ewertsen   +3 more
doaj   +1 more source

Wave-equation shear wave splitting tomography [PDF]

open access: yesGeophysical Journal International, 2008
The main focus of this paper is the development of a theoretical framework for the tomographic inversion of (broad-band) shear wave splitting measurements in terms of anisotropic structure in the upper mantle. We show that the partial differential equations (PDEs) that govern wave equation shearwave splitting tomography are, upon linearization with ...
Long, M.L.   +2 more
openaire   +2 more sources

Effects of cyclic loading on lateral bearing capacity of single pile in silty seabed

open access: yesYantu gongcheng xuebao
Under larger wave loading, the bearing capacity of marine single pile foundation will be reduced, even instability occurs. A series of undrained shear triaxial tests on the remolded marine silt in Hangzhou Bay are carried out by means of the GDS triaxial
WANG Mingyuan 1, SUN Jizhu 2, WANG Yong 3, YANG Yang 4
doaj   +1 more source

Research on Prediction Method of Volcanic Rock Shear Wave Velocity Based on Improved Xu–White Model

open access: yesEnergies, 2022
Volcanic rock reservoirs have received extensive attention from scholars all over the world because of their geothermal, mineral, and oil and gas resources.
Hanqing Qiao, Bing Zhang, Cai Liu
doaj   +1 more source

Magnetohydrodynamic Shearing Waves [PDF]

open access: yesThe Astrophysical Journal, 2007
14 pages, 4 figures, accepted for Publication in the Astrophysical Journal. Primary changes: added discussion of wave-action conservation as well as a section describing the energy and angular momentum transport properties of the ...
openaire   +2 more sources

Relationship between Shear Wave Velocity and SPT-N Value for Residual Soils

open access: yesMATEC Web of Conferences, 2018
The shear wave velocity (Vs) is an important dynamic parameter in the field of geotechnical engineering. One of the surface wave methods is Spectral Analysis of Surface Wave (SASW) has received attention in obtaining the shear wave velocity (Vs) profile ...
Bawadi Nor Faizah   +3 more
doaj   +1 more source

The evolution of mode-2 internal solitary waves modulated by background shear currents [PDF]

open access: yesNonlinear Processes in Geophysics, 2018
The evolution of mode-2 internal solitary waves (ISWs) modulated by background shear currents was investigated numerically. The mode-2 ISW was generated by the lock-release method, and the background shear current was initialized after the mode-2 ISW ...
P. Zhang   +16 more
doaj   +1 more source

Determination of Empirical Correlations between Shear Wave Velocity and Penetration Resistance in the Canakkale Residential Area (Turkey)

open access: yesApplied Sciences, 2023
One of the most important parameters used to determine the dynamic properties of soil layers is the shear wave velocity. In geotechnical earthquake engineering, the shear wave velocity is used to determine the shear modulus, which provides the input ...
Mehmet Celal Tunusluoglu
doaj   +1 more source

Refraction of Surface Gravity Waves by Shear Waves [PDF]

open access: yesJournal of Physical Oceanography, 2006
Abstract Previous field observations indicate that the directional spread of swell-frequency (nominally 0.1 Hz) surface gravity waves increases during shoreward propagation across the surf zone. This directional broadening contrasts with the narrowing observed seaward of the surf zone and predicted by Snell’s law for bathymetric ...
Henderson, Stephen M.   +3 more
openaire   +3 more sources

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