Results 71 to 80 of about 11,841 (159)

Detached Eddy Simulation (DES) of a Turbulent Premixed Flame Stabilized on a Bluff Body

Proceedings in Applied Mathematics and Mechanics, Volume 25, Issue 2, June 2025.
ABSTRACT As the demand for net‐zero emissions intensifies, low‐emission fuels (LEFs) are increasingly explored for their potential to reduce pollutants in combustion systems. The present study investigates the flame dynamics and pollutant emissions (CO and NOx) of different LEFs using detached eddy simulations (DES), a method that offers better ...
Abdelkader Hemaizia, Dominique Thévenin, Cheng Chi   +2 more
wiley   +1 more source

Low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration

Scientific Reports, 2017
Environmentally friendly and low-cost technologies to recover low-grade heat source into usable energy can contribute to ease the energy shortage. Thermoacoustic technology is expected as one promising approach in this ascendant field.
T. Jin, R. Yang, Y. Wang, Y. Feng, K. Tang   +4 more
doaj   +1 more source

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

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

Full field inversion in photoacoustic tomography with variable sound speed

, 2018
Recently, a novel measurement setup has been introduced to photoacoustic tomography, that collects data in the form of projections of the full 3D acoustic pressure distribution at a certain time instant.
Haltmeier, Markus, Nguyen, Linh V., Nuster, Robert, Zangerl, Gerhard   +3 more
core   +1 more source

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

Impact of the type of heat exchanger on the characteristics of low-temperature thermoacoustic heat engines

International Journal of Thermofluids
Thermoacoustic technologies are considered an effective solution for harnessing low-temperature heat, whether from waste or renewable sources. However, in practice, developing and implementing high-performance thermoacoustic systems is a complex ...
Volodymyr Korobko, Anatoliy Shevtsov, Serhiy Serbin, Huabing Wen, Marek Dzida   +4 more
doaj   +1 more source

A Single Simulation Platform for Hybrid Photoacoustic and RF-Acoustic Computed Tomography

Applied Sciences, 2018
In recent years, multimodal thermoacoustic imaging has demonstrated superior imaging quality compared to other emerging modalities. It provides functional and molecular information, arising due to electromagnetic absorption contrast, at ultrasonic ...
Christopher Fadden, Sri-Rajasekhar Kothapalli   +1 more
doaj   +1 more source

Thermoacoustic Modeling of Cryogenic Hydrogen

Energies
Future thermoacoustic cryocoolers employing hydrogen as a working fluid can reduce reliance on helium and improve hydrogen liquefaction processes. Traditional thermoacoustic modeling methods often assume ideal-gas thermophysical properties and neglect ...
Konstantin I. Matveev, Jacob W. Leachman
doaj   +1 more source