Results 71 to 80 of about 2,806 (227)

The application of frequency‐modulated continuous wave modulated thermoacoustic imaging in geological media

Geophysical Prospecting, Volume 73, Issue 4, Page 1154-1170, May 2025.
Abstract A thermoacoustics imaging system is investigated in this paper to enhance conventional imaging modalities in geological subsurface situational awareness applications. While thermoacoustics imaging has traditionally been used in biological scenarios like breast cancer detection, this work aims to extend thermoacoustics imaging to geophysical ...
Chang Liu, Chang Wang, Xu Mao, Weite Zhang, Raquel Isabel Martínez‐López, Juan Heredia‐Juesas, Jose Martinez‐Lorenzo   +6 more
wiley   +1 more source

Emerging Wearable Acoustic Sensing Technologies

Advanced Science, Volume 12, Issue 6, February 10, 2025.
This review summarizes recent advancements in wearable acoustic devices developed through interdisciplinary and bionic approaches. These applications include bio‐acoustic detection, ultrasound energy supply, and ultrasonic diagnosis. It highlights challenges and future directions, aiming to promote their use in the human body and explore integration ...
Tao Liu, Yuchen Mao, Hanjie Dou, Wangyang Zhang, Jiaqian Yang, Pengfan Wu, Dongxiao Li, Xiaojing Mu   +7 more
wiley   +1 more source

Experimental Performance Evaluation of a Thermoacoustic Stirling Engine with a Low-Cost Arduino-Based Acquisition System

Applied Sciences
Existing thermoacoustic dynamic measurement instrumentation is typically expensive and relies on proprietary designs, sensors, and acquisition equipment.
Carmen Iniesta, Jordi Vinolas, Federico Prieto, Jose Luis Olazagoitia, Luis Soliverdi   +4 more
doaj   +1 more source

Energy and Efficiency Evaluation of Feedback Branch Design in Thermoacoustic Stirling-Like Engines

Energies, 2019
Stirling-like thermoacoustic generators are external combustion engines that provide useful acoustic power in the absence of moving parts with high reliability and respect for the environment.
Carmen Iniesta, José Luis Olazagoitia, Jordi Vinolas, Jaime Gros   +3 more
doaj   +1 more source

Exploring the Frontiers of Cell Temperature Measurement and Thermogenesis

Advanced Science, Volume 12, Issue 1, January 9, 2025.
This review focuses on the mechanisms of local temperature generation within cells and the methods developed for accurate temperature assessment. Contact and noncontact techniques are introduced, including infrared thermography, fluorescence thermometry, and other innovative localized temperature measurement approaches.
Hanliang Zhu, Haotian Xu, Yue Zhang, Jan Brodský, Imrich Gablech, Marie Korabečná, Pavel Neuzil   +6 more
wiley   +1 more source

Porous Cores in Small Thermoacoustic Devices for Building Applications

Energies, 2020
The thermoacoustic behavior of different typologies of porous cores is studied in this paper with the goal of finding the most suitable solution for small thermoacoustic devices, including solar driven air coolers and generators, which can be used in ...
Fabio Auriemma, Elio Di Giulio, Marialuisa Napolitano, Raffaele Dragonetti   +3 more
doaj   +1 more source

Calculation of thermoacoustic functions with computational fluid dynamics [PDF]

, 2013
Thermoacoustic functions are important parameters of one-dimensional codes used for the design of thermoacoustic engines. The thermal and viscous thermoacoustic functions allow the inclusion of three dimensional effects in one-dimensional codes.
Bühler, Simon, Meer, Theo van der, Oosterhuis, Joris P., Wilcox, Douglas   +3 more
core   +2 more sources

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, Loïc Saint‐Martin, Rayyan Manwar, Amanda Siegel, Dan Schonfeld, Kamran Avanaki   +5 more
wiley   +1 more source

Comparative Performance of Thermoacoustic Heat Exchangers with Different Pore Geometries in Oscillatory Flow. Implementation of Experimental Techniques

Applied Sciences, 2017
Heat exchangers (HXs) constitute key components of thermoacoustic devices and play an important role in determining the overall engine performance. In oscillatory flow conditions, however, standard heat transfer correlations for steady flows cannot be ...
Antonio Piccolo, Roberto Siclari, Fabrizio Rando, Mauro Cannistraro   +3 more
doaj   +1 more source

Adaptive Vibration Control of the Moving Cage in the 4 ×$\times$ 4 Hyperbolic PDE‐ODE Model of the Dual‐Cable Mining Elevator

IET Control Theory &Applications, Volume 19, Issue 1, January/December 2025.
This paper proposes an observer‐based adaptive output‐feedback boundary control to stabilize the vibrations of the moving cage of a dual‐cable mining elevator. This system is comprised of two mechanically jointed winding drums that drive the two cables through the floating sheaves to lift the cage.
Elham Aarabi, Mohammadali Ghadiri‐Modarres, Mohsen Mojiri   +2 more
wiley   +1 more source