Results 61 to 70 of about 5,511 (234)

Expanded statistical analysis of squats on the Great Britain (GB) mainline network

Heliyon, 2023
Squat defects are one of the most common rail surface defects. Significant research effort has gone into understand squat defects over the last 10 years which has brought about important developments in the understanding of their initiation mechanism ...
G. Tucker, K. Sztrauch, A. Bevan, Y. Muhamedsalih, S. Hawksbee, P. Shackleton, P. Mistry, B. Whitney, M. Burstow   +8 more
doaj   +1 more source

Transcatheter Repair of Sinus Venosus Defect Using a 12‐zig Covered Cheatham‐Platinum Stent in Large Superior Vena Cava—Right Atrium Junctions: Early Multicenter Experience

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Sinus venosus defect (SVD) is a rare congenital heart anomaly characterised by an abnormal communication between the atria, often associated with partial anomalous pulmonary venous connection (PAPVC). Traditional surgical repair carries significant risks, prompting exploration into less invasive transcatheter approaches.
Alberto Fuensalida, Eric Rosenthal, Saleha Kabir, Gergely Szantho, Sophia Yong, Demetris Taliotis, Mark Turner, Radwa Bedair   +7 more
wiley   +1 more source

Digital documentation of railway tunnel inspection in Austria

Civil Engineering Design, Volume 7, Issue 1, Page 3-8, March 2025.
Abstract Infrastructure, especially railway tunnels, require continuous inspection to ensure their safety. Furthermore, the detection of damages at an early stage can improve their service life. These tasks represent a major challenge for those involved and the tunnel down time is a disruption in operation.
Matthias J. Rebhan, Stefan S. Grubinger, Andreas Schüppel, Simona Deutinger, Gernot Schwarzenberger   +4 more
wiley   +1 more source

LASER SCATTEROMETRY FOR DETECTION OF SQUAT DEFECTS IN RAILWAY RAILS [PDF]

Archives of Transport, 2015
The paper concerns a defectoscopy of squats occurring on the surface of the rail head. Disadvantages of traditional methods being used in detection of such defects were also presented. Authors proposed a new method based on simplified laser scatterometry
Piotr Lesiak, Tadeusz Szumiata, Marek Wlazło   +2 more
doaj   +1 more source

Integration of an Ultrasonic Sensor within a Robotic End Effector for Application within Railway Track Flaw Detection

Applied Sciences
The rail industry is constantly facing challenges related to safety with regard to the detection of surface cracks and internal defects within rail tracks.
Luke Cilia, Christian Andrew Griffiths, Andrew Rees, Jennifer Thompson   +3 more
doaj   +1 more source

Analysis of 70° Ghost Echo of Bolt Hole in High-speed Rail Flaw Detection Ultrasonic Examination

机车电传动, 2021
In the detection process of high-speed rail flaw by ultrasonic flaw, there are some abnormal echoes in rail head near the bolt holes in B scan sometimes, however, they are not echoes from defects but ghost echoes actually.
Pin WANG, Jingwei CAO, Hongliang LI, Lang XIA   +3 more
doaj  

Single Atoms Induced Electron Transfer and Spin Polarization for High‐Performance Asymmetric Supercapacitors

Carbon Energy, EarlyView.
Contributed by the introduction of Cu SAs, extra electron transfer, and spin polarization to Cooh can be induced for optimizing electronic structure, contributing to fast electron conduction, enhanced capacitive reactions and accelerated ion diffusion. ABSTRACT Features of low cost and high theoretical capacity render transition metal oxides (TMOs) as ...
Qingjie Lu, Tong Zhou, Mingpeng Chen, Yumin Zhang, Huachuan Sun, Xiaoqu Wang, Baoye Zi, Bo Li, Jin Zhang, Zhongqi Zhu, Qingju Liu   +10 more
wiley   +1 more source

Research on the causes analysis and control methods of line defects in the head of hundred-meter rails

AIP Advances
In response to the rail head line defect in the production process of hundred-meter rails, through inspection and analysis of rail tracks with line defects, theoretical calculations of rolling deformation, and on-site industrial trials, it is clarified ...
Hongbin Jia, Deyong Liao, Dong Wang, Jiyong Jin   +3 more
doaj   +1 more source

MODELLING RAIL THERMAL DIFFERENTIALS DUE TO BENDING AND DEFECTS

Transport, 2021
Rail foot flaws have the potential to cause broken rails that can lead to derailment. This is not only an extremely costly issue for a rail operator in terms of damage to rolling stock, but has significant flow-on effects for network downtime and a safe working environment.
Bosomworth, Chris, Spiryagin, Maksym, Alahakoon, Sanath, Cole, Colin   +3 more
openaire   +3 more sources

Inspection of RCF rail defects – Review of NDT methods

, 2023
Rail inspection research is a substantive topic for the railway industry. Management of rolling contact fatigue rail defects is crucial for transport safety worldwide because uncontrolled development of these defects could cause railway accidents ...
Lazarević, Luka, Luka Lazarević, Mićić, Milica, Milica Mićić, Brajović, Ljiljana, Zdenka Popović, Ljiljana Brajović, Popović, Zdenka   +7 more
core   +1 more source