Carotid atherosclerotic plaque characterisation by measurement of ultrasound sound speed in vitro at high frequency, 20 MHz [PDF]
, 2010 PhDThe first part of the study was to characterise the acoustic properties of an IEC agar-based tissue mimicking material (TMM) at ultrasound frequencies centred around 20 MHz.
Brewin, Mark Paul
core +4 more sources
The sound speed anomaly of Baltic seawater [PDF]
Ocean Science, 2016 The effect of the anomalous chemical composition of Baltic seawater on the speed of sound relative to seawater with quasi-standard composition was quantified at atmospheric pressure and temperatures of 1 to 46 °C.
C. von Rohden, S. Weinreben, F. Fehres
doaj +1 more source
Sound speed gradients in mud [PDF]
JASA Express Letters, 2021 Various methods have been used to estimate sound speed profiles in mud at the New England Mud Patch. Some of these methods show large sound speed gradients of order 10 s−1.
Charles W. Holland
doaj +1 more source
Reconstruction Method of Ocean Front Model Based on Fuzzy Cluster Analysis of Sound Speed Profile
IEEE Access, 2021 Ocean fronts are mostly determined according to the horizontal temperature gradient, and various selection criteria may lead to different frontal zones. This study proposes a frontal zone delineation method based on sound speed profile.
Yuyao Liu +5 more
doaj +1 more source
A New Compression and Storage Method for High-Resolution SSP Data Based-on Dictionary Learning
Journal of Marine Science and Engineering, 2022 The sound speed profile data of seawater provide an important basis for carrying out underwater acoustic modeling and analysis, sonar performance evaluation, and underwater acoustic assistant decision-making.
Kaizhuang Yan +2 more
doaj +1 more source
New, Spherical Solutions of Non-Relativistic, Dissipative Hydrodynamics
Entropy, 2022 We present a new family of exact solutions of dissipative fireball hydrodynamics for arbitrary bulk and shear viscosities. The main property of these solutions is a spherically symmetric, Hubble flow field. The motivation of this paper is mostly academic:
Gábor Kasza +2 more
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Effects of reference sound speed on underwater acoustic direction-of-arrival estimation with horizontal plane array [PDF]
JASA Express LettersDirection-of-arrival (DOA) estimation of an underwater acoustic target is usually dependent on the selection of reference sound speed. For a horizontal line array, severe error of DOA estimation is induced when reference sound speed diverges from phase ...
Feitong Chen +6 more
doaj +1 more source
Algorithm for Computationally Efficient Imaging of Sound Speed in Conventional Ultrasound Sonography
Archives of Acoustics, 2023 The speed of sound (SoS) in tissues reflects their mechanical properties and therefore can carry valuable diagnostic information. In conventional ultrasound sonography (US), however, this information is not readily available.
Piotr KARWAT
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Derivation of the relation for calculating sound velocity in gas mixtures
Meteorologische Zeitschrift, 1998 It is shown how the speed of sound in a gas mixture can be derived, using the speed of sound and other quantities of the pure components of the said mixture.
Dimitrii Denisov
doaj +1 more source
Non-Contact Thermometer for Improved Air Temperature Measurements
Sensors, 2023 A compact thermometer for air temperature based on the measurement of the speed of sound was developed at INRIM. This paper focuses on the comparison of this instrument with platinum resistance thermometers in a climatic chamber over a temperature range (
Marco Pisani +2 more
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