Results 81 to 90 of about 1,003 (224)

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

Theoretical Study on Standing Wave Thermoacoustic Engine

, 2015
Applications of thermoacoustic engines are not limited to driving pulse tube cryocoolers. The performance of a thermoacoustic engine is governed by various design parameters like type of resonator, stack geometry, frequency, type of working gas etc.
Atrey, M.D., Naik, H.B., Kalra, S., Desai, K.P.   +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

A standing-wave thermoacoustic engine driven by liquid nitrogen [PDF]

, 2011
Thermoacoustic oscillation at cryogenic temperatures, such as Taconis oscillation, has been typically suppressed in the former studies, and few efforts have been made to enhance it.
Rao, JF, X.J. Zhang, Sun, DM, Lou, P, Zhang, XJ, Wang, B, J.F. Rao, Daming Sun, B. Wang, Wang, K, L. M. Qiu, Qiu, LM, Ping Lou, K. Wang   +13 more
core   +1 more source

Development of a novel thermoacoustic flue-gas analyzer

AIP Advances, 2020
Flue gas analyzers, such as those based on electrochemical cells and infrared sensors, are commonly used to determine the molar concentrations of the different species of flue-gas mixtures and provide information about the associated air-fuel ratio and ...
M. Aziz, H. Saleh, A. Abd El-Rahman
doaj   +1 more source

Experimental investigation of bifurcations in a thermoacoustic engine [PDF]

, 2015
In this study, variation in the characteristics of the pressure oscillations in a thermoacoustic engine is explored as the input heat flux is varied.
Iqbal, S. Md., Yogesh Prasaad, M. S., Unni, Vishnu R., Ravi, N. T., Pesala, Bala, Sujith, R. I.   +5 more
core   +1 more source

Fishbone-like instability in a looped-tube thermoacoustic engine

, 2010
Quasi-periodic bursts of acoustic oscillations were observed during the start-up process in a looped-tube thermoacoustic engine. The acoustic oscillations have a constant frequency of 111 Hz, while the bursts have “quasi-periods” in the order of 14–25 s.
Yu, Z., Jaworski, A.J., Artur J. Jaworski, Abduljalil, A.S., Zhibin Yu, Abdulrahman S. Abduljalil   +5 more
core   +1 more source

Heuristics applying stochastic information as tools for thermoacoustic standing-wave engine optimization

Computer Assisted Methods in Engineering and Science, 2018
In this article, two numerical methods for solving engineering problems defined as multicriteria optimization and inverse problem are presented. In particular, this study deals with the optimization of the design of thermoacoustic engine in the frame in
Iwona Nowak
doaj   +1 more source

Experimental Investigation on the Conversion between Heat and Power of the kW-class Thermoacoustic Engine

, 2014
This paper presents a novel experimental system of conversion between heat and power of the kW-class thermoacoustic engine, at both ends of the thermoacoustic core components the compression and expansion motors are added.
Wu, Zhanghua, Li, Donghui, Zhang, Limin, Luo, Ercang   +3 more
core   +1 more source

Investigating the synergy of blockage ratio and external cold heat exchanger in standing-wave thermoacoustic engines: An experimental study

Results in Engineering
Thermoacoustic engines (TAE) offer a promising avenue for converting low-grade heat into useable energy. Despite its simplicity in fabrication, designing thermoacoustic engines face efficiency challenges hindering their widespread adoption.
M.M. Mahlalela, M.G.K. Machesa, L.K. Tartibu   +2 more
doaj   +1 more source