Results 231 to 240 of about 39,338 (264)

Microstructure Characterization of Cancellous Bone Based on Ultrasonic C-Scan Imaging

2017
Ultrasonic backscatter signals can reflect the microstructural information of cancellous bone. The goal of this study is to characterize the microstructure of cancellous bone in the mesoscale and estimate trabecular thickness (Tb.Th), trabecular bone separation (Tb.Sp), bone volume fraction (BV/TV) and structure model index (SMI) based on ultrasonic C ...
Ying Li, Chengcheng Liu, Feng Xu, Dean Ta   +3 more
openaire   +1 more source

Improving Ultrasonic C-Scan Resolution Using the Hilbert-Huang Transform

AIP Conference Proceedings, 2005
The Hilbert Huang Transform (HHT) is applied to ultrasonic mapping of simulated defects in an aluminum plate. C‐Scanning tests are conducted using pulse‐echo ultrasound on a water‐immersed aluminum plate containing a matrix of 16 unevenly‐spaced flat‐bottomed holes.
openaire   +1 more source

Ultrasonic C-scan image restoration method using the Richardson-Lucy algorithm and a flaw measurement model

Applied Acoustics, 2022
Xuhui He
exaly  

The ultrasonic C-Scan technique for damage evaluation of GFRP composite materials [PDF]

, 2016
We show experimental results obtained by an innovative non-destructive approach for the characterization of the damage of composite materials. The analysis regard an aeronautical rotor made of glass fiber–reinforced composite material, and is developed by applying an ultrasonic immersion C-Scan technique.
Castellano, Anna, Foti, Pilade, Fraddosio, Aguinaldo, Marzano, Salvatore, Piccioni, Mario Daniele   +4 more
openaire  

High Resolution, High Sensitivity Ultrasonic C-Scan Imaging System

1977
A particular goal of much of the research in ultrasonic imaging is the development of systems that can image a volume inside the body with high resolution in all dimensions.
openaire   +1 more source

Quantitative determination of the defects in TC4 diffusion bonded joints via ultrasonic C-scan

Journal of Manufacturing Processes, 2021
Jiangtao Xiong, Jinglong Li, Junmiao Shi   +2 more
exaly  

Some developments in ultrasonic C-scanning of composites

NDT & E International, 1994
openaire   +1 more source

Some developments in ultrasonic C-scanning of composites

NDT International, 1990
openaire   +1 more source

Ultrasonic B-Scan Imaging: Theory of Image Formation and a Technique for Restoration

Ultrasonic Imaging, 1980
Mostafa Fatemi, A C Kak
exaly   +2 more sources

Method of Measuring the Width of Stiffeners by Using Laser Ultrasonic C-Scan

Laser & Optoelectronics Progress, 2020
路培鑫 Lu Peixin, 王栋 Wang Dong, 李阳 Li Yang   +2 more
openaire   +1 more source