Results 21 to 30 of about 28,230 (268)
An approach to viscoelastic characterization of dispersive media by inversion of a general wave propagation model [PDF]
Journal of Innovative Optical Health Sciences, 2017 In the characterization of elastic properties of tissue using dynamic optical coherence elastography, shear/surface waves are propagated and tracked in order to estimate speed and Young’s modulus.
Fernando Zvietcovich +2 more
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The effect of strong shear on internal solitary-like waves [PDF]
Nonlinear Processes in Geophysics, 2021 Large-amplitude internal waves in the ocean propagate in a dynamic, highly variable environment with changes in background current, local depth, and stratification. The Dubreil–Jacotin–Long, or DJL, theory of exact internal solitary waves can account for
M. Stastna, A. Coutino, R. K. Walter
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Shear Wave Measurements of a Gelatin’s Young’s Modulus
Frontiers in Earth Science, 2020 Gelatin is a commonly used material for analog experiments in geophysics, investigating fluid-filled fracture propagation (e.g., magmatic dikes), as well as fault slip.
Stephen Pansino +2 more
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Pressure shock fronts formed by ultra-fast shear cracks in viscoelastic materials
Nature Communications, 2018 Propagating shear cracks in solids emit both shear and pressure waves, but it is usually thought that only shear waves coalesce to form shock fronts when the crack exceeds the shear wave speed.
M. Gori +3 more
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In-situ ultrasonic shear wave sensing of thin metallic coatings on journal bearing shells
FrictionUltrasonic testing using shear polarised waves is widely applied in medical and engineering fields, commonly employed for hardness or stress measurement.
Liqun Wu +4 more
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Shear Wave Elastography Based on Noise Correlation and Time Reversal
Frontiers in Physics, 2021 Shear wave elastography (SWE) relies on the generation and tracking of coherent shear waves to image the tissue's shear elasticity. Recent technological developments have allowed SWE to be implemented in commercial ultrasound and magnetic resonance ...
Javier Brum +3 more
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Scientific Reports, 2021 Changes in myocardial stiffness may represent a valuable biomarker for early tissue injury or adverse remodeling. In this study, we developed and validated a novel transducer-free magnetic resonance elastography (MRE) approach for quantifying myocardial ...
Marian Amber Troelstra +9 more
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Dynamic Viscosity and Transverse Ultrasonic Attenuation of Engineering Materials
Applied Sciences, 2020 In this paper, ultrasonic attenuation of the transverse waves of engineering materials is evaluated, covering metals, ceramics, polymers, fiber-reinforced plastics, and rocks. After verifying experimental methods, 273 measurements are conducted and their
Kanji Ono
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E3S Web of Conferences, 2019 On May 27th 2006, Yogyakarta earthquake happened with 6.3 Mw. It was causing widespread destruction and loss of life and property. The average shear wave velocity to 30 m (Vs30) is useful parameter for classifying sites to predict their potential to ...
Le Ngal Nwai +5 more
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Vorticity Waves in Shear Flows [PDF]
INCAS Bulletin, 2015 The main purpose of this paper is to bring about the vorticity-creation process at the boundary surfaces on one hand and to understand the interaction of concentrated vorticity structures on the shear flow on the other hand.
Horia DUMITRESCU, Vladimir CARDOS
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