Results 11 to 20 of about 890 (213)
Frontiers in Physiology, 2018 Estimating the effect of microgravity/hypogravity on pulmonary ventilation function remains topical. Recently developed acoustic techniques based on the evaluation of the forced expiratory noise time (FETa) were hypothesized to be a promising tool for ...
Veronika V. Malaeva +6 more
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Analysis of the Static Behavior of a Single Tree on a Finite Element Model
Plants, 2021 This work deals with the innovated complex process of tree risk assessment, from precise geometrical tree shape acquisition to building and analyzing a finite element model under specified load.
Ľuboš Moravčík +2 more
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Journal of Marine Science and Engineering, 2022 In this paper, we analyzed the results of experimental data processing in the study of regularities of propagation and transformation of low-frequency harmonic signals at the boundary of the “sea−land−sea” system.
Sergey Budrin +3 more
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Temperature Field Reconstruction Method for Acoustic Tomography Based on Multi-Dictionary Learning
Sensors, 2022 A reconstruction algorithm is proposed, based on multi-dictionary learning (MDL), to improve the reconstruction quality of acoustic tomography for complex temperature fields.
Yuankun Wei, Hua Yan, Yinggang Zhou
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Study of Probe Distribution for Furnace Acoustic Tomographic Temperature Measurement
发电技术, 2021 The two/three-dimensional distribution image of furnace temperature can be obtained by furnace acoustic tomographic temperature measurement system. The distribution of ultrasonic probes will directly affect its imaging accuracy. Four-side and four-corner
Lifeng ZHANG, Yu MIAO
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Magneto-Acoustic Imaging in Biology
Applied Sciences, 2023 This review examines the use of magneto-acoustic methods to measure electrical conductivity. It focuses on two techniques developed in the last two decades: Magneto-Acoustic Tomography with Magnetic Induction (MAT-MI) and Magneto-Acousto-Electrical ...
Bradley J. Roth
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Image Human Thorax Using Ultrasound Traveltime Tomography with Supervised Descent Method
Applied Sciences, 2022 The change of acoustic velocity in the human thorax reflects the functional status of the respiratory system. Imaging the thorax’s acoustic velocity distribution can be used to monitor the respiratory system. In this paper, the feasibility of imaging the
Tong Zhang +7 more
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Flow current field observation with underwater moving acoustic tomography
Frontiers in Marine Science, 2023 Underwater environment observation with underwater acoustic tomography has been considerably developed in recent years. Moving sound transmission can obtain the observation of entire spatial area with sound station moving.
Shijie Xu +9 more
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Thermal acoustic tomography [PDF]
The Journal of the Acoustical Society of America, 1990 Monitoring of furnace exit gas temperature is important for the efficient maintenance of operating parameters within utility boilers. Since gas temperature is related to the acoustic wave speed, a noninvasive technique based on transit time measurements along selected paths of known length can be used to develop an analytical model capable of ...
Roderick McNeil +2 more
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Recent progress in acoustic travel-time tomography of the atmospheric surface layer
Meteorologische Zeitschrift, 2009 Acoustic tomography of the atmospheric surface layer (ASL) is based on measurements of the travel times of sound propagation between sources and receivers which constitute a tomography array.
Vladimir E. Ostashev +4 more
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