Results 81 to 90 of about 3,455 (216)
Highly Sensitive Phased Array Probes based on Capacitive Micromachined Ultrasonic Transducers
e-Journal of Nondestructive TestingCapacitive Micromachined Ultrasonic Transducers (CMUTs) offer a wide freedom of design for ultrasonic phased arrays. They are characterized, in comparison to piezoelectric transducers, by a higher sensitivity in receiving and a wider bandwidth based on ...
Uwe Voelz +3 more
doaj +1 more source
ALGORITMO QUE REDUCE DISTORSIÓN DE IMÁGENES ULTRASÓNICAS EN ENSAYOS NO DESTRUCTIVOS
Visión Electrónica, 2014 Este artículo describe la investigación y el desarrollo de un sistema para la formación de imágenes por difracción de tiempo de vuelo (TOFD). El proceso para generarlas se logra con base en la adquisición de señales A-Scan, producto de la exploración de ...
Darío Segura
doaj
Ultrasonic Inspection Results Obtained in the ENIQ 2nd Pilot Study [PDF]
, 2007 This report is a compilation of the ultrasonic non-destructive inspections results obtained on the ENIQ 21 BWR-type nozzle to shell weld mock-up. The report has been divided into three different sections 1) Report on inspection results obtained on the ...
ERIKSEN BRIAN, MELBI Mikael
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TOFD IMAGING SYSTEM IN NONDESTRUCTIVE TESTS
, 2012 This paper shows how the symbiosis of two disciplines, software engineering and ultrasonic techniques, made possible the development of a nondestructive testing system for TOFD imaging, and it also allowed to make the application of commercial computation tools independent.
Segura, Darío, Rodríguez, Alejandro
openaire +1 more source
Revista EIA, 2009 En el presente artículo se describe el diseño y construcción de un sistema electrónico para examen no destructivo con ultrasonido (ENDU), que es una de las técnicas más utilizadas para evaluar sin deteriorar piezas metalmecánicas en diversas áreas de la ...
Jairo Rodríguez +3 more
doaj
Corrosion of API 5L X60 Pipeline Steel in Soil and Surface Defects Detection by Ultrasonic Analysis
MetalsThe corrosion steels phenomenon is one of the main problems in the oil industry, such as in buried transmission pipelines used for high gas pressure for long distances.
Fatima Benkhedda +4 more
doaj +1 more source
Evaluating Maximum Likelihood Estimation Methods to Determine the Hurst Coefficient [PDF]
, 1999 A maximum likelihood estimation method implemented in S-PLUS (S-MLE) to estimate the Hurst coefficient (H) is evaluated. The Hurst coefficient, with 0.5\u3cHS-MLE was developed to estimate H for fractionally differenced (fd) processes.
Bassingthwaighte, J. B. +2 more
core +1 more source
Asteroid exploration and utilization: The Hawking explorer [PDF]
The Earth is nearing depletion of its natural resources at a time when human beings are rapidly expanding the frontiers of space. The resources which may exist on asteroids could have enormous potential for aiding and enhancing human space exploration as
Carlson, Alan +9 more
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User-Interface Coding for the CERN/GEANT Nuclear Physics Program [PDF]
, 1993 Explanations will be given of the various user-written routines required by the Monte Carlo detector-modeling program GEANT, developed by CERN, the European Organization for Nuclear Research.
Braithwaite, Wilfred J. +1 more
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Аналіз акустичних методів ідентифікації та визначення параметрів дефектів металоконструкцій [PDF]
, 2014 Рівень розвитку промисловості на сучасному етапі характеризується не тільки об’ємом виробництва і асортиментом випущеної продукції, але і показниками її якості.
Карпаш, М. О. +1 more
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