Results 1 to 10 of about 360,424 (294)

An omega‐k algorithm for multireceiver synthetic aperture sonar

open access: yesElectronics Letters, 2023
In this Letter, the authors present a novel imaging algorithm for multireceiver synthetic aperture sonar (SAS). The Loffeld's bistatic formula (LBF) including quasi‐monostatic (QM) and multireceiver deformation (MD) phases is first reformulated into ...
Xuebo Zhang, Peixuan Yang, Haixin Sun
doaj   +1 more source

Design and analysis of SAW pressure sensing element based on IDT/AlN/Mo/diamond multilayered structure

open access: yesActa Acustica, 2022
The multilayer structure of surface acoustic wave sensor is an important development direction of surface acoustic wave devices in recent years. In this paper, the IDT/AlN/Mo/diamond structure of surface acoustic wave pressure sensing element is modeled ...
Ma Xiaoxin   +3 more
doaj   +1 more source

“Percolation” of acoustic wave in acoustic waveguide composed of two zero-index mediums

open access: yesResults in Physics, 2021
The transmission property of acoustic wave in a waveguide composed of index-near-zero (INZ) and reciprocal-modulus-near-zero (RMNZ) has been investigated.
Yu-Feng Zhang   +3 more
doaj   +1 more source

Acoustic wave-driven oxide dependant dynamic behavior of liquid metal droplet for inkjet applications

open access: yesMaterials Research Express, 2023
In this paper, we report bouncing and separating dynamic behaviors of a liquid metal droplet with/without the oxide layer in response to the applied acoustic wave.
Jinpyo Jeon   +3 more
doaj   +1 more source

Acoustic power measurements of oscillating flames [PDF]

open access: yes, 1981
The acoustic power of an oscillating flame is measured. A turbulent premixed propane/air flame is situated near a pressure antinode of a standing wave in a laboratory combustion chamber. This standing wave is generated by a piston.
Valk, M.
core   +3 more sources

Extreme driven ion acoustic waves [PDF]

open access: yes, 2017
Excitation of large amplitude strongly nonlinear ion acoustic waves from a trivial equilibrium by a chirped frequency drive is discussed. Under certain conditions, after passage through the linear resonance in this system, the nonlinearity and the ...
Friedland, Lazar, Shagalov, Arkadiy
core   +1 more source

The research of LWD acoustic isolator based on SAW spatial separation [PDF]

open access: yesMATEC 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
doaj   +1 more source

Influence of viscoelasticity and interfacial slip on acoustic wave sensors [PDF]

open access: yes, 2000
Acoustic wave devices with shear horizontal displacements, such as quartz crystal microbalances (QCM) and shear horizontally polarised surface acoustic wave (SH-SAW) devices provide sensitive probes of changes at solid-solid and solid- liquid interfaces.
Cowen, JA   +3 more
core   +1 more source

A Parametric Study of the Acoustic Mechanism for Core-Collapse Supernovae [PDF]

open access: yes, 2017
We investigate the criterion for the acoustic mechanism to work successfully in core-collapse supernovae. The acoustic mechanism is an alternative to the neutrino-heating mechanism.
Harada, A.   +3 more
core   +2 more sources

Surface acoustic wave microfluidics [PDF]

open access: yesLab on a Chip, 2013
The recent introduction of surface acoustic wave (SAW) technology onto lab-on-a-chip platforms has opened a new frontier in microfluidics. The advantages provided by such SAW microfluidics are numerous: simple fabrication, high biocompatibility, fast fluid actuation, versatility, compact and inexpensive devices and accessories, contact-free particle ...
Xiaoyun, Ding   +10 more
openaire   +2 more sources

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