Results 31 to 40 of about 1,203,879 (258)
Holographic measurement of surface acoustic wave parameters in crystals [PDF]
Modern Electronic Materials, 2019 The theoretical basis of a specialized technique for applying digital holographic interferometry to measure the parameters of surface acoustic waves is presented, a measuring system for visualization and quantitative analysis of the parameters of ...
Michael E. Gusev, Yuri N. Zakharov
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Investigation of bulk acoustic microwaves excited by an interdigital transducer
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2015 Excitation of bulk and surface acoustic waves with the interdigital transducer (IDT), which is deposited on the surface of a piezoelectric crystal, is widely used in the development of devices in acoustoelectronics and in the design of the microwave ...
O. G. Reshotka +2 more
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The research of LWD acoustic isolator based on SAW spatial separation [PDF]
MATEC Web of Conferences, 2019 Acoustic logging while drilling (LWD) can extract P-wave and S-wave information from the formation. However, the transmission of the collar wave propagated directly from the emitter to the receiver may interfere with the P-wave and S-wave and affect the ...
Yang Peinian, Chen Dehua, Xiuming Wang
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Metamaterials for simultaneous acoustic and elastic bandgaps
Scientific Reports, 2021 In this work, we present a single low-profile metamaterial that provides bandgaps of acoustic and elastic waves at the same time. This was done by ensuring impedance mismatch in two different domains, the fluid domain where the acoustic waves propagate ...
Waiel Elmadih +2 more
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Directional Transmission Characteristics of Acoustic Waves Based on Artificial Periodic Structures
IEEE Access, 2019 Acoustic artificial periodic structures, also known as phononic crystal, have been widely used in special acoustic problems such as low-frequency vibration reduction and noise reduction due to their bandgap characteristics.
Shuai Tang, Rui Wang, Jianning Han
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Wave–wave interactions and deep ocean acoustics [PDF]
The Journal of the Acoustical Society of America, 2013 Deep ocean acoustics, in the absence of shipping and wildlife, is driven by surface processes. Best understood is the signal generated by non-linear surface wave interactions, the Longuet-Higgins mechanism, which dominates from 0.1 to 10 Hz, and may be significant for another octave.
Guralnik, Zachary +3 more
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Applied Sciences, 2023 Tire acoustic cavity resonance noise (TACRN) contributes significantly to the interior noise of electric cars and passenger cars with lower powertrain noise, which affects the comfort of the ride.
Xiaojun Hu +3 more
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Localization of classical waves I: Acoustic waves [PDF]
Communications in Mathematical Physics, 1996 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Figotin, Alexander, Klein, Abel
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Accounting for convective effects in zero-Mach-number thermoacoustic models [PDF]
, 2014 This paper presents a methodology to account for some mean-flow effects on thermo-acoustic instabilities when using the zero-Mach-number assumption. It is shown that when a computational domain is represented under the M=0 assumption, a nonzero-Mach ...
Nicoud, F. +5 more
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Ground-based acoustic parametric generator impact on the atmosphere and ionosphere in an active experiment [PDF]
Annales Geophysicae, 2017 We develop theoretical basics of active experiments with two beams of acoustic waves, radiated by a ground-based sound generator. These beams are transformed into atmospheric acoustic gravity waves (AGWs), which have parameters that enable them to ...
Y. G. Rapoport +14 more
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