Results 71 to 80 of about 2,856 (222)

Weakly nonlinear thermoacoustics for stacks with slowly varying pore cross-sections [PDF]

open access: yes
A general theory of thermoacoustics is derived for arbitrary stack pores. Previous theoretical treatments of porous media are extended by considering arbitrarily shaped pores with the only restriction that the pore cross-sections vary slowly in the ...
Molenaar, J.   +3 more
core   +2 more sources

Recent Advances of Graphene‐Based Wearable Sensors: Synthesis, Fabrication, Performance, and Application in Smart Device

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 12, June 23, 2025.
This review article explores applications in wearable sensors such as mechanical, electrophysiological, and gas sensors, highlighting advancements that improve device performance and predictability. In addition to analyzing graphene's synthesis techniques, including traditional and advanced laser‐based methods, the article discusses fabrication ...
Fatemeh Saeedi   +2 more
wiley   +1 more source

Thermoacoustic refrigerator driven by a combustion-powered thermoacoustic engine - Demonstrator of device for rural areas of developing countries [PDF]

open access: yes, 2013
This paper presents the design, construction and experimental evaluation of a demonstrator thermoacoustic refrigerator driven by a combustion-powered thermoacoustic engine.
Jaworski, AJ   +3 more
core  

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

open access: yesGeophysical 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   +6 more
wiley   +1 more source

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

open access: yesApplied Sciences
Existing thermoacoustic dynamic measurement instrumentation is typically expensive and relies on proprietary designs, sensors, and acquisition equipment.
Carmen Iniesta   +4 more
doaj   +1 more source

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

open access: yesEnergies, 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   +3 more
doaj   +1 more source

Porous Cores in Small Thermoacoustic Devices for Building Applications

open access: yesEnergies, 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   +3 more
doaj   +1 more source

Heat transfer processes in parallel-plate heat exchangers of thermoacoustic devices - Numerical and experimental approaches [PDF]

open access: yes, 2012
This paper addresses the issues of heat transfer in oscillatory flow conditions, which are typically found in thermoacoustic devices. The analysis presented concerns processes taking place in the individual "channels" of the parallel-plate heat ...
Jaworski, AJ, Piccolo, A
core   +2 more sources

Emerging Wearable Acoustic Sensing Technologies

open access: yesAdvanced 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   +7 more
wiley   +1 more source

Exploring the Frontiers of Cell Temperature Measurement and Thermogenesis

open access: yesAdvanced 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   +6 more
wiley   +1 more source

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