Results 21 to 30 of about 434,289 (296)
Acoustic energy transmission in cast iron pipelines [PDF]
, 2015 In this paper we propose acoustic power transfer as a method for the remote powering of pipeline sensor nodes. A theoretical framework of acoustic power propagation in the ceramic transducers and the metal structures is drawn, based on the Mason ...
Boyle, D +3 more
core +1 more source
Applied Sciences, 2017 Heat exchangers (HXs) constitute key components of thermoacoustic devices and play an important role in determining the overall engine performance. In oscillatory flow conditions, however, standard heat transfer correlations for steady flows cannot be ...
Antonio Piccolo +3 more
doaj +1 more source
Quartz-Enhanced Photoacoustic Spectroscopy in the Terahertz Spectral Range
Photonics, 2023 Infrared laser photo-acoustic spectroscopy provides very high sensitivity of a gas sample analysis when high-power tunable laser radiation sources and resonant photo-acoustic detectors (PADs) are used.
Alexey P. Votintsev +4 more
doaj +1 more source
Alexandria Engineering Journal, 2020 The analysis of thermoacoustic engines and the equations that describe the internal physical phenomena are far from simple. Previous studies on energetic characterisation of thermoacoustic engines are based only on the determination of the active ...
Carmen Iniesta +3 more
doaj +1 more source
Frequency effect on streaming phenomenon induced by Rayleigh surface acoustic wave in microdroplets [PDF]
, 2012 Acoustic streaming of ink particles inside a water microdroplet generated by a surface acoustic wave(SAW) has been studied numerically using a finite volume numerical method and these results have been verified using experimental measurements. Effects of
Alghane, Mansour +5 more
core +1 more source
Energy Reports, 2021 In the recent past, attraction towards the new power generation technologies and thermal energy recovery have become exponentially increasing due to the environmental and economic concerns.
H.M.D.P. Herath +2 more
doaj +1 more source
Can High Frequency Acoustic Waves Heat the Quiet Sun Chromosphere? [PDF]
, 2007 We use Hinode/SOT Ca II H-line and blue continuum broadband observations to study the presence and power of high frequency acoustic waves at high spatial resolution.
Carlsson, Mats +11 more
core +1 more source
Integrated ultrasonic particle positioning and low excitation light fluorescence imaging [PDF]
, 2013 A compact hybrid system has been developed to position and detect fluorescent micro-particles by combining a Single Photon Avalanche Diode (SPAD) imager with an acoustic manipulator. The detector comprises a SPAD array, light-emitting diode (LED), lenses,
Al-Rawhani, M. +3 more
core +2 more sources
Study of Standing-Wave Thermoacoustic Electricity Generators for Low-Power Applications
Applied Sciences, 2018 This paper is concerned with the study of low-cost, low-power thermoacoustic electricity generators. Based on target electrical output power values of 50 and 100 W, three standing wave prototypes (of both one-stage and two-stage prototypes) integrating a
Antonio Piccolo
doaj +1 more source
Recent advances in applications of power ultrasound for petroleum industry
Ultrasonics Sonochemistry, 2021 Power ultrasound, as an emerging green technology has received increasing attention of the petroleum industry. The physical and chemical effects of the periodic oscillation and implosion of acoustic cavitation bubbles can be employed to perform a variety
Xiaoming Luo +4 more
doaj +1 more source