Results 31 to 40 of about 1,044,354 (304)
BioResources, 2015 Determination of the stiffness constants of Muiracatiara wood (Astronium lecointei) was performed using Fakopp 3D acoustic tomography and James V Mk II ultrasound devices.
Rejane Costa Alves +3 more
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Remote Sensing, 2023 Underwater acoustic tomography is an advanced technology in water environment observation. Sound propagation duration between transceivers is used for underwater parameter distribution profile reconstruction in the inverse problem.
Pan Xu +6 more
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eLife, 2015 Perceptual abilities of animals, like echolocating bats, are difficult to study because they challenge our understanding of non-visual senses. We used novel acoustic tomography to convert echoes into visual representations and compare these cues to ...
Elizabeth L Clare, Marc W Holderied
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Energies, 2022 The acoustic characteristics of hydrates are important parameters in geophysical hydrate exploration and hydrate resource estimation. The microscale distribution of hydrate has an important influence on the acoustic response of a hydrate-bearing ...
Qingtao Bu +9 more
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Scholarpedia, 2014 Photoacoustic tomography (PAT), sometimes referred to as optoacoustic tomography, is defined as cross-sectional or three-dimensional (3D) imaging of a material based on the photoacoustic effect (Wang 2009). Therefore, PAT possesses spatial resolution along the depth dimension and at least one of the other two dimensions.
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Adaptive acoustical tomography [PDF]
The Journal of the Acoustical Society of America, 1986 Acoustical and seismological tomography differ significantly from tomography as practiced using energy which travels in straight lines, such as with x rays. The complication of refraction introduces a large number of new variables. This has the indirect result of reducing the variance for most of the variables. Usually overlooked, conveniently, is that
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Nonlinear Medical Ultrasound Tomography: 3D Modeling of Sound Wave Propagation in Human Tissues
MathematicsThe article aimed to show the fundamental possibility of constructing a computational digital twin of the acoustic tomograph within the framework of a unified physics–mathematical model based on the Navier–Stokes equations. The authors suggested that the
Maxim Shishlenin +2 more
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Surprises in Physical Oceanography: Contributions from Ocean Acoustic Tomography
Tellus: Series A, Dynamic Meteorology and Oceanography, 2022 The author has employed ocean acoustic tomography over the past 30 years to examine problems in physical oceanography, often with surprising results. Tomography offers an accurate measurement of current or sound speed (temperature) averaged over 100s to ...
Brian D. Dushaw
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On the recovering of acoustic attenuation in 2D acoustic tomography
Journal of Physics: Conference Series, 2021 AbstractThe inverse problem of recovering the acoustic attenuation in the inclusions inside the human tissue is considered. The coefficient inverse problem is formulated for the first-order system of PDE. We reduce the inverse problem to the optimization of the cost functional by gradient method.
M A Shishlenin +2 more
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A Two-Stage Acoustic Tomography Method for Temperature Distribution Reconstruction
发电技术ObjectivesTo improve the reconstruction accuracy of temperature distribution in acoustic tomography, a two-stage reconstruction algorithm based on compressed sensing and multi-scale dilated convolution is proposed.MethodsFirst, a compressed sensing model
ZHANG Lifeng, DONG Xianghu
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