Stress-dependent permeability and wave dispersion in tight cracked rocks: Experimental validation of simple effective medium models
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2017jb014147
Abstract: We experimentally assess the impact of microstructure, pore fluid and frequency on wave velocity, wave dispersion and permeability in a thermally cracked Carrara marble under effective pressures up to 50 MPa. The cracked rock is… read more here.
Keywords: wave dispersion; dependent permeability; permeability; crack ... See more keywords
Observance of Stoneley waves at the Lamb wave dispersion in stratified media
Sign Up to like & getrecommendations! Published in 2019 at "Archive of Applied Mechanics"
DOI: 10.1007/s00419-019-01650-w
Abstract: Observance of Stoneley waves at the guided wave dispersion in stratified plates containing layers with alternating contrast physical properties is analyzed by applying Cauchy sextic formalism coupled with the exponential fundamental matrix method. Additional high-frequency… read more here.
Keywords: stoneley waves; stoneley; dispersion stratified; observance stoneley ... See more keywords
Stress gradient, strain gradient and inertia gradient beam theories for the simulation of flexural wave dispersion in carbon nanotubes
Sign Up to like & getrecommendations! Published in 2018 at "Composites Part B: Engineering"
DOI: 10.1016/j.compositesb.2018.08.083
Abstract: Abstract Flexural wave propagation in carbon nanotubes (CNTs) can be described through higher-order elasticity theories so as to capture the dispersive behavior induced by the inherent nanoscale heterogeneity. Motivated by experimental dispersion characteristics of metal… read more here.
Keywords: beam theories; flexural wave; wave dispersion; dispersion ... See more keywords
Influence of fibrosis progression on the viscous properties of in vivo liver tissue elucidated by shear wave dispersion in multifrequency MR elastography.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of the mechanical behavior of biomedical materials"
DOI: 10.1016/j.jmbbm.2021.104645
Abstract: PURPOSE Many elastography studies have shown that liver stiffness increases with fibrosis and thus can be used as a reliable marker for noninvasively staging fibrosis. However, the sensitivity of viscosity-related mechanical parameters, such as shear… read more here.
Keywords: viscous properties; fibrosis; shear wave; wave dispersion ... See more keywords
Interplay between grid resolution and pressure decimation in non-hydrostatic modeling of internal waves
Sign Up to like & getrecommendations! Published in 2019 at "Ocean Engineering"
DOI: 10.1016/j.oceaneng.2019.06.014
Abstract: Abstract The Pressure Decimation and Interpolation (PDI) method is an effective numerical technique to improve the computational efficiency of a non-hydrostatic model. We carried out an analysis of the wave dispersion relation and quantitative measurements… read more here.
Keywords: internal waves; non hydrostatic; pressure; resolution pressure ... See more keywords
Wave dispersion and dissipation performance of locally resonant acoustic metamaterials using an internal variable model
Sign Up to like & getrecommendations! Published in 2020 at "Wave Motion"
DOI: 10.1016/j.wavemoti.2019.102483
Abstract: Abstract Engineering structures for different dispersion and dissipation levels of wave propagation use internal variable models, which may enhance the performance of acoustic metamaterials (AMMs). In this study, the wave dispersion and dissipation performance of… read more here.
Keywords: dispersion dissipation; wave dispersion; dispersion; dissipation performance ... See more keywords
Shear Wave Dispersion Imaging for the Characterization of Focal Liver Lesions - A Pilot study.
Sign Up to like & getrecommendations! Published in 2021 at "Ultraschall in der Medizin"
DOI: 10.1055/a-1610-9171
Abstract: PURPOSE Shear wave dispersion imaging is a novel ultrasound-based technique, which analyzes the speed of different shear wave components depending on their frequency. The dispersion of shear wave speed correlates with the viscosity of the… read more here.
Keywords: dispersion imaging; shear wave; wave dispersion; dispersion ... See more keywords
Tuning of acoustic wave dispersion in ferroelectrics—A theoretical study
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Physics"
DOI: 10.1063/1.4975787
Abstract: Tuning of acoustic wave dispersion in ferroelectrics due to its electrostrictive effect is theoretically investigated. As the acoustic wave is excited electrically in ferroelectrics, the elastic stiffness tensor can be modified by both the linear… read more here.
Keywords: acoustic wave; tuning acoustic; wave; wave dispersion ... See more keywords
The effect of magnetization of natural rubber latex coated magnetite nanoparticles on shear wave dispersion magneto-motive ultrasound.
Sign Up to like & getrecommendations! Published in 2019 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/ab4693
Abstract: The shear wave dispersion magneto-motive ultrasound (SDMMUS) method was recently developed to analyze the mechanical properties of a viscoelastic medium. This technique is based on the interaction of magnetic nanoparticles (MNPs) with an external magnetic… read more here.
Keywords: shear wave; wave dispersion; effect; dispersion magneto ... See more keywords
Clinical Feasibility of Shear Wave Dispersion Slope for Noninvasive Diagnosis of Nonalcoholic Steatohepatitis in Patients With Morbid Obesity
Sign Up to like & getrecommendations! Published in 2022 at "Ultrasound Quarterly"
DOI: 10.1097/ruq.0000000000000599
Abstract: Abstract We aimed to investigate the clinical feasibility of shear wave dispersion slope for assessing nonalcoholic steatohepatitis (NASH) in patients with morbid obesity before bariatric surgery. This prospective study collected data from 25 participants who… read more here.
Keywords: patients morbid; dispersion slope; shear wave; wave dispersion ... See more keywords
Effects of director rotation relaxation on viscoelastic wave dispersion in nematic elastomer beams
Sign Up to like & getrecommendations! Published in 2019 at "Mathematics and Mechanics of Solids"
DOI: 10.1177/1081286518773516
Abstract: In this paper, the transverse wave dispersion in a nematic elastomer (NE) Timoshenko beam is studied by considering anisotropy and viscoelasticity of NEs in the low frequency limit. Firstly, the characteristic equations of wave motion… read more here.
Keywords: director rotation; dispersion; relaxation; wave dispersion ... See more keywords