Results 21 to 30 of about 3,306,688 (343)

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

“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

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

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

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

Bulk and Surface Acoustic Wave Sensor Arrays for Multi-Analyte Detection: A Review

open access: yesItalian National Conference on Sensors, 2019
Bulk acoustic wave (BAW) and surface acoustic wave (SAW) sensor devices have successfully been used in a wide variety of gas sensing, liquid sensing, and biosensing applications.
K. Länge
semanticscholar   +1 more source

Modernization of adaptive matching pursuit method to analyze geophysical signals of pulse nature

open access: yesE3S Web of Conferences, 2018
The paper is devoted to the development and comparison of different numerical methods which increase the adaptive property and improve the accuracy of matching pursuit algorithm in connection to geoacoustic and electromagnetic signals.
Lukovenkova Ol’ga   +3 more
doaj   +1 more source

Simulations and Experimental Analysis of a High Viscosity Inkjet Printing Device Based on Fabry–Pérot Resonator

open access: yesSensors, 2022
The study investigates the effect of changing various input parameters on the pressure responses at acoustic cavities of a droplet-based acoustic printing device consisting of a Fabry–Pérot (FP) resonator and a standing wave-source chamber.
Muhammad Ali Shah   +3 more
doaj   +1 more source

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