Articles with "plane wave" as a keyword



Optimum Parameters in Ultrasound Coherent Plane Wave Compounding for High LPWV Estimation

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Published in 2024 at "Journal of Ultrasound in Medicine"

DOI: 10.1002/jum.16469

Abstract: The aim of this study is to determine the optimum and fine values of the number and transmission angles of tilted plane waves for coherent plane‐wave compounding (CPWC)‐based high local pulse wave velocity (LPWV) estimation. read more here.

Keywords: lpwv estimation; wave compounding; coherent plane; plane ... See more keywords

Dynamics, quantum states and Compton scattering in nonlinear gravitational waves

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Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep06(2024)023

Abstract: The classical dynamics and the construction of quantum states in a plane wave curved spacetime are examined, paying particular attention to the similarities with the case of an electromagnetic plane wave in flat spacetime. A… read more here.

Keywords: compton scattering; quantum states; scattering nonlinear; dynamics quantum ... See more keywords

Hypermonogenic Plane Wave Solutions of the Dirac Equation in Superspace

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Published in 2019 at "Advances in Applied Clifford Algebras"

DOI: 10.1007/s00006-019-0981-0

Abstract: In this paper, we obtain Cauchy-Kovalevskaya theorems for hypermonogenic superfunctions depending only on purely bosonic and fermionic vector variables. In addition, we use these results to construct plane wave examples of such functions. read more here.

Keywords: plane; plane wave; hypermonogenic plane; dirac equation ... See more keywords

Joint sampling theory and subjective investigation of plane-wave and spherical harmonics formulations for binaural reproduction

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Published in 2018 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2018.01.016

Abstract: Abstract With the recent proliferation of spherical microphone arrays for sound field recording, methods have been developed for rendering binaural signals from these recordings and free-field head related transfer functions (HRTFs). Employing spherical arrays naturally… read more here.

Keywords: plane wave; spherical harmonics; binaural reproduction; harmonics ... See more keywords

Plane-Wave Ultrasound Beamforming Through Independent Component Analysis

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Published in 2021 at "Computer methods and programs in biomedicine"

DOI: 10.1016/j.cmpb.2021.106036

Abstract: BACKGROUND AND OBJECTIVE Beamforming in coherent plane-wave compounding (CPWC) is an essential step in maintaining high resolution, contrast and framerate. Adaptive methods have been designed to achieve this goal by estimating the apodization weights from… read more here.

Keywords: plane wave; plane; independent component; component analysis ... See more keywords

Dynamic coherence factor based on the standard deviation for coherent plane-wave compounding

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Published in 2019 at "Computers in biology and medicine"

DOI: 10.1016/j.compbiomed.2019.03.022

Abstract: The ultrafast imaging technique based on plane wave transmission has been a commonly investigated imaging mode in medical ultrasound imaging. Coherent plane-wave compounding (CPWC) was proposed to improve the quality of plane-wave imaging (PWI), which… read more here.

Keywords: plane wave; quality; coherence factor; plane ... See more keywords

Reflection and transmission of plane wave in multilayered nonlocal magneto-electro-elastic plates immersed in liquid

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Published in 2017 at "Composite Structures"

DOI: 10.1016/j.compstruct.2016.11.004

Abstract: Abstract Taking the nonlocal effect into account, we investigate the reflection and transmission of the plane wave propagating in three-dimensional multilayered magneto-electro-elastic (MEE) plates which are immersed in liquid. Based on the basic equations with… read more here.

Keywords: plane wave; transmission; reflection transmission; transmission plane ... See more keywords

An efficient high order plane wave time domain algorithm for transient electromagnetic scattering analysis

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Published in 2017 at "Engineering Analysis With Boundary Elements"

DOI: 10.1016/j.enganabound.2017.09.004

Abstract: Abstract An efficient high order plane wave time domain algorithm is presented for analyzing the transient scattering from three dimensional electrically large conducting objects. This method uses a set of hierarchical divergence-conforming vector basis functions… read more here.

Keywords: plane wave; order; time; time domain ... See more keywords

Impact of Radon transform on plane wave diffraction by an impedance step geometry

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Published in 2018 at "Optik"

DOI: 10.1016/j.ijleo.2018.08.126

Abstract: Abstract This work presents a Radon transform analysis of plane wave diffraction by an impedance step, such that the planes and the step have different impedances. Application of Radon transform on diffraction analysis is of… read more here.

Keywords: wave diffraction; plane wave; geometry; radon transform ... See more keywords

Elastic full waveform inversion using plane-wave

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Published in 2019 at "Journal of Applied Geophysics"

DOI: 10.1016/j.jappgeo.2019.103826

Abstract: Abstract Elastic full waveform inversion (FWI) is used to invert multicomponent data to obtain more accurate subsurface information; however, this method has a much higher computational cost than the acoustic method. In this study, the… read more here.

Keywords: inversion; plane wave; waveform inversion; full waveform ... See more keywords

Improved contrast for high frame rate imaging using coherent compounding combined with spatial matched filtering

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Published in 2017 at "Ultrasonics"

DOI: 10.1016/j.ultras.2017.03.015

Abstract: HIGHLIGHTSSpatial matched filtering (SMF) is a novel plane‐wave beamforming method.A new technique of integrating coherent plane‐wave compounding with SMF is proposed.The proposed method is more efficient than DAS based compounding method in contrast. ABSTRACT The… read more here.

Keywords: frame rate; plane wave; contrast; high frame ... See more keywords