Ultrasonic testing is a very important non-destructive method for testing components for safety of nuclear power plants and other security and delicate parts in other industries. Nowadays, thanks to the development of computer technology, it is possible to simulate processes which occur during ultrasonic testing. That is why numerical simulations are becoming an integral part of non-destructive...

The hematocrit of a thrombus is a key factor associated with the susceptibility to thrombolysis. Ultrasonic imaging is currently the first-line screening tool for thrombus examinations. Different hematocrits result in different acoustical structures of thrombi, which alter the behavior of ultrasonic backscattering. This study explored the relationships among thrombolytic efficiencies, hematocri...

PURPOSE To identify novel mutation in the PAX6 (paired box gene 6) gene and characterize new clinical features of severe ocular malformation in a Chinese patient with Peters' anomaly. METHODS A 10-month-old male infant, who presented with corneal opacity and nystagmus, was referred to our pediatric clinic and underwent a complete general physical and ophthalmological examination, including an...

Emphasis in the paper is placed on describing guided wave successes and challenges for applications in aircraft, composite materials and pipeline inspection. Guided wave imaging methods discussed includes such topics as line of sight, tomography, guided wave C scan, phased array, and ultrasonic vibration methods. Applications outlined encircles lap splice, bonded repair patch, fuselage corrosio...

Damage detection methodology utilizing A-scan and C-scan concept for detecting flaws for composite structure has been presented Ultrasonic bulk wave has been used for non-destructive testing of the composite specimen. Carbon fiber composites have been tested for different types of damages using longitudinal waves. Two sample specimens consisting of a de-lamination, a through hole, and resin ric...

For a long time, Ultrasonic Testing Machines for aircraft components have been built with almost 100% custom made mechanics (gantry or bridge design) to match customer needs. This design comes with several disadvantages like price, delivery time or lack of flexibility. This article illustrates an alternative approach to Testing Machine design for the Aerospace industry and describes in detail t...

The use of numerical and phased array techniques to focus guided waves and perform inspection of plates and pipes has not been widely used; it represents an interesting solution for defect detection and localization. In addition, imaging of ultrasonic guided wave results using color coded B-Scans is also considered a highly valuable tool for data interpretation. While commercial ultrasonic phas...

The study was aimed at establishing a new ultrasonic criterion of evaluating spleen dimensions in children (area of the maximum axial section) and determining the range of normal spleen dimensions. Patients and methods: We analyzed 838 ultrasonic spleen examinations in 3-15-year-old children and determined the area of the maximum axial section by tracing the scan obtained with a medical device....

Abstract The effects of embedding a midplane carbon nanotube (CNT) sheet on the impact damage resistance, tensile strength and propensity for interlaminar shear failure in fiber reinforced polymer matrix composite is experimentally evaluated. External internal impacted laminates were characterized via surface profilometry ultrasonic C‐scan, respectively. external dent areas depths greater witho...