Results 41 to 50 of about 5,511 (234)
Ultrasonic imaging of buried defects in rails
NDT & E International, 2023 The present work addresses the ultrasonic NDT of rails, more precisely of the rail foot. The practical constraint is that transducers must be located on the rail head, whereas the region of interest is the rail foot. Thus, there is no direct acoustic path between the transducers and the region of interest.
Samuel Rodriguez +4 more
openaire +4 more sources
Adaptive noise cancelling and time–frequency techniques for rail surface defect detection [PDF]
, 2015 Adaptive noise cancelling (ANC) is a technique which is very effective to remove additive noises from the contaminated signals. It has been widely used in the fields of telecommunication, radar and sonar signal processing.
Liang, B. +11 more
core +1 more source
On the scattering of longitudinal elastic waves from axisymmetric defects in coated pipes [PDF]
, 2013 This is the post-print version of the final paper published in Journal of Sound and Vibration. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
Mudge, P, Zlatev, Z, Kirby, R
core +1 more source
Image segmentation method of rail head defects and area measurement of selected segments [PDF]
MATEC Web of ConferencesThe operation safety of railway transport, which is the most important economic and social factor, is largely determined by the technical condition of the rail track and measures to maintain the quality of its track management system.
Tverdomed Volodymyr +2 more
doaj +1 more source
THE RESEARCH OF THE RAILWAY RAIL FOR ANALYSIS OF SURFACE INITIATED ROLLING CONTACT FATIGUE CRACKS
Mechanics and Advanced Technologies, 2020 Problems. Under the influence of dynamic loading from trains and natural conditions, the railway track deteriorates, characterized by the appearance of defects and residual deformations of the railway track, which lead to accelerated wear and malfunction
Pavlo Protsenko +7 more
doaj +1 more source
Data fusion for defect characterisation using a dual probe system [PDF]
, 2008 We present recent work on a dual probe system containing electromagnetic acoustic transducers (EMATs) generating and detecting surface ultrasonic waves, and a pulsed eddy current (PEC) probe.
Dixon, S. +6 more
core +1 more source
On the scattering of torsional elastic waves from axisymmetric defects in coated pipes [PDF]
, 2012 This is the post-print version of the Article - Copyright @ 2012 ElsevierLong range ultrasonic testing is now a well established method for examining in-service degradation in pipelines.
Mudge, P, Zlatev, Z, Kirby, R
core +1 more source
A Subspace Method For Detection And Classification Of Rail Defects
, 2008 Publication in the conference proceedings of EUSIPCO, Lausanne, Switzerland ...
Mehel-Saidi, Zineb +2 more
openaire +4 more sources
Advanced Robotics Research, EarlyView.This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino +7 more
wiley +1 more source
Chengshi guidao jiaotong yanjiuObjective The data of various monitoring points regarding rail potential as monitoring object is correlated in time and space, and the direct manifestation of changes in rail-to-rebar structural resistance is reflected in rail potential variation.
Weiguo PAN +4 more
doaj +1 more source