Results 21 to 30 of about 84,966 (318)
A new method for shear wave speed estimation in shear wave elastography
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2015 Visualization of mechanical properties of tissue can aid in noninvasive pathology diagnosis. Shear wave elastography (SWE) measures the elastic properties of soft tissues by estimation of local shear wave propagation speed. In this paper, a new robust method for estimation of shear wave speed is introduced which has the potential for simplifying ...
Engel, Aaron J., Bashford, Gregory R.
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Experimental observation of water saturation effects on shear wave splitting in synthetic rock with fractures aligned at oblique angles [PDF]
, 2015 Fractured rocks are known to exhibit seismic anisotropy and shear wave splitting (SWS). SWS is commonly used for fractured rock characterization and has been shown to be sensitive to fluid type. The presence of partial liquid/gas saturation is also known
Sothcott, J. +7 more
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Heliyon, 2023 Objectives: To provide normal references for regional shear wave elastography assessments of supraspinatus muscle in a population. Methods: Shear wave elastography images of supraspinatus muscles were evaluated on 100 shoulders of 50 normal adults in a ...
Lan Jiang +5 more
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In situ shear wave velocity from multichannel analysis of surface waves (MASW) tests at eight Norwegian research sites [PDF]
, 2007 The Multichannel Analysis of Surface Waves (MASW) technique, used to determine shear wave velocity (Vs) and hence small strain stiffness (Gmax), has recently generated considerable interest in the geophysics community.
Long, Michael +2 more
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Complex anisotropy beneath the Peruvian flat slab from frequency-dependent, multiple-phase shear wave splitting analysis [PDF]
, 2013 Flat or shallow subduction is a relatively widespread global occurrence, but the dynamics remain poorly understood. In particular, the interaction between flat slabs and the surrounding mantle flow has yet to be studied in detail.
Long, Maureen D., Eakin, Caroline M.
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Journal of Rock Mechanics and Geotechnical Engineering, 2020 This article presents a case study concerning a seismic characterization project. Full-wave sonic logging was used to characterize the shallow compressional wave and shear wave velocity profiles in the site.
Francisco Beltran +2 more
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Shear wave elastography with a new reliability indicator [PDF]
Journal of Ultrasonography, 2016 Non-invasive methods for liver stiffness assessment have been introduced over recent years. Of these, two main methods for estimating liver fibrosis using ultrasound elastography have become established in clinical practice: shear wave elastography and ...
Christoph F. Dietrich, Yi Dong
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Temporal variation of shear-wave splitting parameters before and after the 2008 Movri Mountain earthquake in northwest Peloponnese (Greece) [PDF]
, 2013 On June 8, 2008, at 12:25 GMT, a Mw 6.4 earthquake, the Movri Mountain earthquake, occurred in the area of northwest Peloponnese, western Greece. The epicenter was located in the municipality of Movri, 35 km southwest of Patras. For this study, a crustal
Lois Athanasios +4 more
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Shear-Wave Splitting Analysis Using Optimization Algorithms [PDF]
, 2022 Shear-wave splitting (SWS) analysis is used to predict fractures in subsurface media. Specifically, two parameters relevant to SWS analysis (the azimuth of the fast shear wave and the time delay between the fast and slow shear waves) are used to quantify
Zhengtao He, Huailai Zhou, Yuyong Yang
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Yantu gongcheng xuebao, 2018 The shear wave velocity of soils is one of the most important parameters to evaluate the seismic effects of engineering sites. Based on large numbers of borehole shear wave velocity measurements and the engineering geological characteristics in Suzhou ...
ZHU Jiao 1,2, CHEN Guo-xing 1,2, XU Han-gang 3,2, LIU Xue-ning 1,2
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