Results 41 to 50 of about 7,467,907 (193)

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

Advanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony, P. M. Ushasree, Michael Short, Jinoop Arackal Narayanan   +3 more
wiley   +1 more source

Deep Learning (Fast R-CNN)-Based Evaluation of Rail Surface Defects

Applied Sciences
In current railway rails, trains are propelled by the rolling contact between iron wheels and iron rails, and the high frequency of train repetition on rails results in a significant load exertion on a very small area where the wheel and rail come into ...
Jung-Youl Choi, Jae-Min Han
doaj   +1 more source

Mechanisms and Management of Acquired Aseptic Intracardiac Communications After Transcatheter Aortic Valve Implantation: Single‐Center Case Series Insights

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Acquired aseptic intracardiac communications (AICCs) are rare but clinically relevant structural complications following transcatheter aortic valve implantation (TAVI), typically resulting from mechanical injury to the aortic annulus, interventricular septum, or adjacent structures.
Geza Fontos, Abdelkrim Ahres, Marton Vertesaljai, Tunde Pinter, Zsolt Piroth, Matyas Pal, Peter Andreka   +6 more
wiley   +1 more source

An Improved Empirical Wavelet Transform Filtering Method for Rail-Head Surface-Defect Magnetic-Flux Leakage Signal

Applied Sciences
The rail is an important factor in railway traffic safety. Surface defects in the rail head comprise a common type of rail damage, and magnetic flux leakage (MFL) technology is applied for its detection.
Yinliang Jia, Jing Lin, Ping Wang, Yue Zhu   +3 more
doaj   +1 more source

Exploring Step-Heating and Lock-In Thermography NDT Using One-Sided Inspection on Low-Emissivity Composite Structures for New Rail Carbodies

Sensors, 2022
This paper aims to explore the qualification of step- and lock-in heating thermography as techniques capable of inspecting new composite rail carbodies following input and inspection requirements set by the rail manufacturing industry.
Alkiviadis Tromaras, Vassilios Kappatos
doaj   +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

Highly Nonlinear Solitary Waves for Rail Buckling Prevention [PDF]

, 2013
One of the major structural problems in the railroads made of continuous welded rails is buckling in hot weather and breakage or pulling apart in cold weather.
Cai, Luyao
core  

Improved YOLOv8n for Lightweight Rail Surface Defect Detection

Technologies
Rail-surface defects are often small, low-contrast, and confused with steel texture or reflections, making it difficult to improve accuracy without increasing model cost.
Lei Wang, Yuan Si, Jun Wang, Liqing Liao, Wensheng Xie   +4 more
doaj   +1 more source

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

The effects of surface defects on the fatigue of water and oil lubricated contacts [PDF]

, 2000
A study into effects of surface defects on the rolling contact fatigue of brass and rail steel has been undertaken on a twin-disc rolling-sliding test machine with both oil and water lubrication.
Gao, N., Dwyer-Joyce, R. S.
core   +1 more source