Results 51 to 60 of about 11,841 (159)

Influence of Working Conditions on Parameters of Thermoacoustic Engine with Travelling Wave

open access: yesArchives of Acoustics, 2020
Thermoacoustic converters are devices for direct conversion of acoustic energy into thermal energy in the form of temperature difference, or vice versa – for converting thermal energy into an acoustic wave.
Andrzej Bogdan DOBRUCKI   +1 more
doaj   +1 more source

Numerical simulation of thermoacoustic instability in Rijke tube

open access: yesXibei Gongye Daxue Xuebao, 2021
The influence of three different states on the thermoacoustic instability characteristics of Rijke tube was compared in order to reseach the influencing factors of thermoacoustic oscillation by using the Rijke tube model with stack as the heat source ...

doaj   +1 more source

Experiments and modelling of rate-dependent transition delay in a stochastic subcritical bifurcation

open access: yes, 2018
Complex systems exhibiting critical transitions when one of their governing parameters varies are ubiquitous in nature and in engineering applications. Despite a vast literature focusing on this topic, there are few studies dealing with the effect of the
Bonciolini, Giacomo   +3 more
core   +2 more sources

Sensitive and Cost‐Effective Detection of Gamma Rays Using Cd‐Functionalized QTF and MEMS–Based Microcantilever Sensors

open access: yesIET Nanobiotechnology, Volume 2026, Issue 1, 2026.
Ionizing radiation poses a serious health risk to humans; therefore, sensitive detection is significant. Gamma rays are a form of ionizing radiation that can pass through the human body and interact with matter through ionization. Several techniques have been conventionally used to detect ionizing radiation.
Sawsan Aldusaymani   +8 more
wiley   +1 more source

Suppression Mechanisms of Stratified Jet-in-Crossflow on Thermoacoustic Instability and NOx Emissions in Premixed Combustors

open access: yesApplied Sciences
The premixed combustion of a gas turbine is prone to thermoacoustic oscillation, which affects the safety of combustion systems. This study experimentally investigated the suppression mechanism of a stratified jet-in-crossflow on the thermoacoustic ...
Rongyue Sun, Chengfei Tao
doaj   +1 more source

Experimental Study of Suppressing the Thermoacoustic Instabilities in a Rijke Tube Using Microsecond Discharge Plasma

open access: yesAerospace, 2022
Thermoacoustic instabilities occur when heat release is coupled with pressure fluctuation, which may cause performance degradation of the combustor and serious structural damage.
Jiangge Deng   +3 more
doaj   +1 more source

Integral equation models for thermoacoustic imaging of dissipative tissue

open access: yes, 2010
In case of non-dissipative tissue the inverse problem of thermoacoustic imaging basically consists of two inverse problems. First, a function $\phi$ depending on the \emph{electromagnetic absorption function}, is estimated from one of three types of ...
Kowar, Richard
core   +1 more source

Breath by Breath: Navigating the Landscape of Exhaled Breath in Clinical Research and Prospects for the Future

open access: yesJournal of Analytical Methods in Chemistry, Volume 2026, Issue 1, 2026.
Exhaled breath analysis (EBA) has evolved as a noninvasive diagnostic technique with enormous promise in healthcare. The development in this area is based on the concept that the breathalyzers employed to measure the alcohol concentration in the blood can be utilized to evaluate health by analyzing the intricate chemical makeup of exhaled breath, which
Nisha Parikh   +11 more
wiley   +1 more source

Harnessing Photo‐Energy Conversion in Nanomaterials for Precision Theranostics

open access: yesAdvanced Materials, Volume 37, Issue 48, December 3, 2025.
Harnessing photo‐energy conversion in nanomaterials enables precision theranostics through light‐driven mechanisms such as photoluminescence, photothermal, photoelectric, photoacoustic, photo‐triggered surface‐enhanced Raman scattering (SERS), and photodynamic processes. This review explores six fundamental principles of photo‐energy conversion, recent
Jingyu Shi   +4 more
wiley   +1 more source

Application of a nudging technique to thermoacoustic tomography [PDF]

open access: yes, 2010
ThermoAcoustic Tomography (TAT) is a promising, non invasive, medical imaging technique whose inverse problem can be formulated as an initial condition reconstruction.
Bonnefond, Xavier   +1 more
core   +2 more sources

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