Results 21 to 30 of about 109,668 (295)

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

Theoretical mass, liquid, and polymer sensitivity of acoustic wave sensors with viscoelastic guiding layers [PDF]

open access: yes, 2003
The theoretical sensitivity of Love wave and layer-guided shear horizontal acoustic plate mode (SH-APM) sensors for viscoelastic guiding layers and general loading by viscoelastic materials is developed.
Fabrice Martin   +8 more
core   +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

A linear acoustic model for intake wave dynamics in IC engines [PDF]

open access: yes, 2004
In this paper, a linear acoustic model is described that has proven useful in obtaining a better understanding of the nature of acoustic wave dynamics in the intake system of an internal combustion (IC) engine.
Harrison, M. F., Stanev, P. T.
core   +1 more source

Theoretical mass sensitivity of Love wave and layer guided acoustic plate mode sensors [PDF]

open access: yes, 2002
A model for the mass sensitivity of Love wave and layer guided shear horizontal acoustic plate mode (SH–APM) sensors is developed by considering the propagation of shear horizontally polarized acoustic waves in a three layer system. A dispersion equation
Newton, Michael   +8 more
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

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

Development of a combined surface plasmon resonance/surface acoustic wave device for the characterization of biomolecules [PDF]

open access: yes, 2009
It is known that acoustic sensor devices, if operated in liquid phase, are sensitive not just to the mass of the analyte but also to various other parameters, such as size, shape, charge and elastic constants of the analyte as well as bound and viscously
Tsortos, Achilleas   +13 more
core   +1 more source

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