Results 91 to 100 of about 1,725 (197)

Numerical Solution of the Inverse Thermoacoustics Problem Using QFT and Gradient Method

Fractal and Fractional
In this research, we consider the inverse problem for the wave equation under an unknown initial condition. A generalized solution to the direct problem was formulated, its correctness was established, and the stability assessment was obtained.
Syrym E. Kasenov, Aigerim M. Tleulesova, Almas N. Temirbekov, Zholaman M. Bektemessov, Rysbike A. Asanova   +4 more
doaj   +1 more source

Functional photoacoustic microscopy in vivo [PDF]

, 2006
Functional photoacoustic microscopy is a hybrid imaging technique that detects laser induced photoacoustic waves to image biological tissues in three dimensions.
Maslov, Konstantin, Oh, Jung-Taek, Stoica, George, Wang, Lihong V., Zhang, Hao F.   +4 more
core  

Detecting and characterizing thermoacoustic oscillations in an industrial combustor with the spectral proper orthogonal decomposition

Applications in Energy and Combustion Science
This study demonstrates how thermoacoustic oscillations occurring at multiple frequencies in a combustor with mechanical vibrations can be detected and characterized using high-speed chemiluminescence imaging and the time-domain Spectral Proper ...
H. Gambassi, N. Sekularac, P. Ziade, M.A. Mohamad, X. Fang   +4 more
doaj   +1 more source

Three-dimensional in vivo near-infrared photoacoustic tomography of whole small animal head [PDF]

, 2006
A three-dimensional in vivo near-infrared photoacoustic tomography imaging system was newly designed and built to visualize the structure of a whole small animal head.
Song, Kwang Hyun, Stoica, George, Wang, Lihong V.   +2 more
core  

Nusselt and Reynolds numbers correlation for oscillatory flow of thermoacoustics over heated tube banks

International Journal of Thermofluids
The back-and-forth motion characteristic of the oscillatory flow brings complexity in predicting the heat transfer nature for thermoacoustic wave conditions. Investigating this is crucial as the flow forms the backbone for the thermodynamic cycles of its
Aw Lin Chou, Fatimah Al Zahrah Mohd Saat, Fadhilah Shikh Anuar, Ahmed Hamood   +3 more
doaj   +1 more source

Evaluating energy dissipation during expansion in a refrigeration cycle using flue pipe acoustic resonators [PDF]

, 2008
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008."June 2008."Includes bibliographical references (p. 27-29).This research evaluates the feasibility of using a flue pipe acoustic resonator to dissipate energy ...
Luckyanova, Maria N. (Maria Nickolayevna)
core  

Deep reflection-mode photoacoustic imaging of internal organs [PDF]

, 2008
A deep reflection-mode photoacoustic imaging system was developed and demonstrated to possess a maximum imaging depth up to 38 mm in chicken breast tissue. Using this system, structures in the thoracic cavity and vasculature in cervical area of rats were
Song, Kwang Hyun, Wang, Lihong V.
core  

Operating characteristics of a standing-wave, liquid-piston thermoacoustic engine with phase-change

Results in Engineering
Low-grade heat from industrial waste streams, solar-thermal and geothermal, represents a significant energy source currently under-utilized. Phase-Change Thermoacoustic Engines, also known as Wet Thermoacoustic Engines (WTE) consist of a stack (porous ...
Ido Ben-Hertzel, Nathan Blanc, Avishai Meir, Guy Z. Ramon   +3 more
doaj   +1 more source

RF diffraction effect in RF-induced thermoacoustic tomography: calibration and distortion [PDF]

, 2008
Because the wavelengths of radio-frequency (RF) waves used in thermoacoustic tomography (TAT) are comparable with the size of detected objects, RF diffraction plays important roles in TAT.
Ku, Geng, Li, Changhui, Manojit, Pramanik, Wang, Lihong V.   +3 more
core  

Fast Microscale Acoustic Streaming Driven by a Temperature-Gradient-Induced Nondissipative Acoustic Body Force. [PDF]

Phys Rev Lett, 2021
Qiu W, Joergensen JH, Corato E, Bruus H, Augustsson P.   +4 more
europepmc   +1 more source