Results 31 to 40 of about 977,147 (296)
Interpolated Plane Wave Imaging: IPWI
e-Journal of Nondestructive Testing, 2023 This paper offers a solution to the problems caused by sub-Nyquist spatial sampling in ultrasound image generation, which can result in aliasing and grating lobes in Full Matrix Capture (FMC) and Plane Wave Imaging (PWI). Neglecting the spatial sampling
Roberto Henry Herrera +3 more
doaj +1 more source
Weak proton capture on 3He [PDF]
, 2000 The astrophysical S-factor for the proton weak capture on 3He is calculated with correlated-hyperspherical-harmonics bound and continuum wave functions corresponding to realistic Hamiltonians consisting of the Argonne v14 or Argonne v18 two-nucleon and ...
Beacom, J. F. +5 more
core +2 more sources
GPU accelerated 3-D ultrasonic flaw imaging using full waveforms sampling and processing technique
Nihon Kikai Gakkai ronbunshu, 2015 We develop a three dimensional (3-D) flaw imaging system using the full waveforms sampling and processing (FSAP) technique and an ultrasonic matrix array transducer.
Kazuyuki NAKAHATA, Takashi HORIGUCHI
doaj +1 more source
Landau Fermi Liquid Picture of Spin Density Functional Theory: Strutinsky Approach to Quantum Dots
, 2004 We analyze the ground state energy and spin of quantum dots obtained from spin density functional theory (SDFT) calculations. First, we introduce a Strutinsky-type approximation, in which quantum interference is treated as a correction to a smooth Thomas-
Baranger, Harold U. +3 more
core +1 more source
Study on Enhancements to Ultrasonic Data Imaging Using Full Matrix Capture Technique
Journal of the Korean Society for Nondestructive Testing, 2015 Abstract A conventional phased array system can control an ultrasonic beam electronically by adjusting the excitation time delay of individual elements in a multi-element probe and produce an ultrasonic image. In Contrast, full matrix capture (FMC) is a data acquisition process that allows receiving ultrasonic signals from one single shot of the phased
Tae-Hun Lee +2 more
openaire +2 more sources
Mathematical and Computational Applications, 2020 The present work proposes a new model to capture high heterogeneity of single phase flow in naturally fractured vuggy reservoirs. The model considers a three porous media reservoir; namely, fractured system, vugular system and matrix; the case of an ...
Fernando Alcántara-López +3 more
doaj +1 more source
Anisotropy Corrected FMC/TFM Based Phased Array Ultrasonic Imaging in an Austenitic Buttering Layer
Applied Sciences, 2023 For the narrow gap dissimilar weld between a ferritic steel and a nickel base superalloy, a nickel base alloy buttering layer is deposited on the ferritic steel side as an intermediate layer. The bonding between the buttering layer and the ferritic steel
S. Ponseenivasan +2 more
doaj +1 more source
The Solar Proton Burning Process Revisited In Chiral Perturbation Theory [PDF]
, 1998 The proton burning process p + p -> d + e(+) + \nu(e), important for the stellar evolution of main-sequence stars of mass equal to or less than that of the Sun, is computed in effective field theory using chiral perturbation expansion to the next-to-next-
Dong‐Pil Min +11 more
core +5 more sources
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Remote Sensing, 2018 The extraction of a valuable set of features and the design of a discriminative classifier are crucial for target recognition in SAR image. Although various features and classifiers have been proposed over the years, target recognition under extended ...
Meiting Yu +3 more
doaj +1 more source