Results 81 to 90 of about 1,767 (217)
A Deep Learning‐Based Approach to Characterize Skull Physical Properties: A Phantom Study
Journal of Biophotonics, Volume 18, Issue 1, January 2025.We extracted various features from ultrasound signals using skull‐mimicking phantoms (including variation in thicknesses and porosity) and analyzed them using machine learning and deep learning models. The evaluation demonstrated that ML‐ and DL‐trained models could predict the physical characteristics of skull phantoms with reasonable accuracy for ...
Deepika Aggrawal +5 more
wiley +1 more source
Limit-Cycle Properties of a Rijke Tube [PDF]
, 2003 Thermoacoustic instability appears when unsteady heat release is favourably coupled with acoustic pressure perturbations. The important technical applications involving thermoacoustics are combustion instability in rocket motors and low-pollutant lean ...
Culick, F. E. C., Matveev, K. I.
core
Applied SciencesEfforts to optimize the design and enhance the efficiency of standing-wave thermoacoustic refrigerators (SWTARs), particularly those with parallel plate stacks, are crucial for achieving rapid and straightforward engineering estimates.
Humberto Peredo Fuentes +1 more
doaj +1 more source
Correction of the effects of acoustic heterogeneity on thermoacoustic tomography using transmission ultrasound tomography [PDF]
, 2006 The effects of acoustic heterogeneities on thermoacoustic tomography (TAT) are examined and corrected. One assumption made in the existing reconstruction algorithms for thermoacoustic tomography is that biological tissue is acoustically homogeneous.
Jin, Xing, Wang, Lihong V.
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Toward functional ultrasound-modulated optical tomography: a phantom study [PDF]
, 2008 We present the feasibility of functional ultrasound-modulated optical tomography (UOT) in tissue phantoms with two optical wavelengths. By using intense acoustic bursts and a CCD camera-based speckle contrast detection technique, we observe variations of
Kim, Chulhong, Wang, Lihong V.
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The Influence of Heat Input Ratio on Electrical Power Output of a Dual-Core Travelling-Wave Thermoacoustic Engine [PDF]
This paper presents an analytical and experimental investigation of an electricity generator that employs a two-stage looped tube travellin -wave thermoacoustic prime-mover to deliver acoustic power from heat energy, a loudspeaker to extract electricity ...
Hann, D. +3 more
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Influence of Material Used for the Regenerator on the Properties of a Thermoacoustic Heat Pump
Archives of Acoustics, 2013 Research in termoacoustics began with the observation of the heat transfer between gas and solids. Using this interaction the intense sound wave could be applied to create engines and heat pumps.
Bartłomiej KRUK
doaj
Functional photoacoustic microscopy in vivo [PDF]
, 2006 Functional photoacoustic microscopy is a hybrid imaging technique that detects laser induced photoacoustic waves to image biological tissues in three dimensions.
Maslov, Konstantin +4 more
core
Introduction to the Special Issue "ICPPP-20". [PDF]
Photoacoustics, 2021 Proskurnin M.
europepmc +1 more source
Applications in Energy and Combustion ScienceThis study demonstrates how thermoacoustic oscillations occurring at multiple frequencies in a combustor with mechanical vibrations can be detected and characterized using high-speed chemiluminescence imaging and the time-domain Spectral Proper ...
H. Gambassi +4 more
doaj +1 more source