accurate shear wave velocities
Original Article Comparison of computed tomography densitometry and shear wave elastography velocity measurements for evaluation of the liver volume in the nonalcoholic fatty liver disease
... the shear wave velocity ...and accurate procedures in differentiating the cirrhotic and non-cirrhotic livers, and in evaluating the liver ...The accurate characterization and dif- ferential ...
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Measurement of shear wave velocities coupled with an evaluation of elasticity using ARFI elastography in diagnosis of papillary thyroid carcinoma
... In contrast to these reports, most papillary carcinomas showed Vs of “X.XX m/s” in the present study; never- theless we used the same device. Lesions other than pap- illary carcinomas never showed Vs of “X.XX m/s”. The ...
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Validity of the Refraction Microtremors (ReMi) Method for Determining Shear Wave Velocities for Different Soil Types in Egypt
... determine shear-wave ...and accurate determination of shear wave velocities, when compared to other methods ...of shear-wave source and quiet site that are ...
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Piezoelectric Device for Measuring Shear Wave Velocity of Soils and Evaluation of Low and High Strain Shear Modulus
... of shear wave velocity and the slope of the resistance-log time curve (Lee et ...normalized shear-wave velocity to evaluate the in-situ state of cohesionless ...sands. Shear wave ...
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Temperature Dependence of Ultrasonic Waves Properties Propagated in Some Types of Carbon Steels
... ultrasonic wave velocities including longitudinal and transverse velocities were ...ultrasonic velocities, the mechanical properties of these steel samples were calculated including Poisson’s ...
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THE DYNAMIC DEFORMATION OF THREE-COMPONENT POROUS MEDIA
... It is seen from the figure that the ratios z l (1) and z (2) l change from 1.4 to 1.9 and from 0.7 to 0.9, respectively. The ratio z (3) l demonstrates a weak dependence on the porosity and is close to 1.1. Thus, in the ...
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Diagnostic value of two-dimensional shear wave elastography in papillary thyroid microcarcinoma
... In our study, the SWE_mean was significantly higher in PTMC (46.6 ± 16.7 kPa) than in benign thyroid nodules (27.8 ± 12.4 kPa). The SWE_max and SWE_min were also significantly higher in malignant tumors (73.6 ± 18.1 and ...
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Rayleigh wave group velocities and attenuation coefficients
... strictly accurate to use the estimates for R^ group velocity and the later passages as estimates of the great circle group velocity, but it can be shown that the errors are small (in general considerably smaller ...
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A 3-D shear velocity model of the southern North American and Caribbean plates from ambient noise and earthquake tomography
... low shear-wave velocities in the western US, along Mexico and below the Chortis Block, and high velocities in the central-east US, the Gulf of Mexico, the Isthmus of Tehuantepec, the Yucatan ...
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Measurements of the trapezius and erector spinae muscles using virtual touch imaging quantification ultrasound Elastography: a cross section study
... (Supersonic Shear Imaging) in as much as they also demonstrated higher shear wave velocities in subjects over 60 years of age ...greater shear wave vel- ocities in the ...
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Simultaneous measurements of elastic wave velocities and electrical conductivity in a brine-saturated granitic rock under confining pressures and their implication for interpretation of geophysical observations
... We firstly consider the shape of pores in granite rock samples on the basis of the confining pressure depend- ence of velocities. For simplicity, a pore is supposed to have a spheroidal shape. The closure pressure ...
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Wave Propagation Characteristics in Functionally Graded Double-Beams
... and wave num- ber on the wave propagation of the nano-beam in different ...exponential shear deformation beam theories and obtained the free vibration frequencies for different materials and length ...
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Wave‐Related Reynolds Number Parameterizations of CO₂ and DMS Transfer Velocities
... a Wave and Surface Current Monitoring System (WAMOS® II) provided wave fi eld data (Cifuentes-Lorenzen et ...directional wave, whereas the Riegl provides only onmidirectional information. Wave ...
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The one-way wave equation: a full-waveform tool for modeling seismic body wave phenomena
... Here, I examine various waveform distortion effects for seismic wave prop- agation in fractured and porous media. Specifically, I consider two categories of effective medium fracture models: frequency independent ...
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Ultrasound Elastography: Review of Techniques and Clinical Applications
... increased shear wave speed [2, ...where shear wave reflection at structural interfaces may lead to incorrect speed estimates ...of shear wave speed on excitation ...of ...
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The GALAH survey: accurate radial velocities and library of observed stellar template spectra
... The GALAH data are reduced with a custom-built pipeline, which is fully described in Kos et al. (2017); here we use results of its version 5.3. The pipeline produces wavelength-calibrated spectra with effects of ...
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Anisotropic Rayleigh wave phase velocities beneath northern Vietnam
... low velocities they present provides structural and geological details that are also in good agreement with our obser- vations at shorter ...low velocities in the northwestern part of the model and fast ...
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Influence of Plate Wave Characteristics on the Angular Dependence of Ultrasonic Velocities
... The most striking difference between the plate and unbounded medium plane wave solutions is the increased anisotropy of the long wavelength S0 mode solution with respect to that of the p[r] ...
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Crustal Shear Wave Velocities Inferred From Love Wave Group Velocity Dispersion Between Mt. Merapi and Mt. Lawu, Central Java
... Koulakov et al [1] from their 3D structure model of the crust and uppermost mantle beneath Mt. Merapi and Mt. Lawu, Central Java, from local source seismic tomography found that there is a strong low velocity anomaly in ...
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The initiation of segmented buoyancy-driven melting during continental breakup
... phase velocities at all periods being ...phase velocities at all ...low velocities at the MER is distributed throughout a larger range of depths compared with the other regions given the depth ...
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