Results 31 to 40 of about 5,108,447 (194)

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, Yurii Borodii, Andrii Petryshyn, Janis Thalau, Pavlo Lypovka, Eckart Uhlmann, Volodymyr Horbyk, Viktor Hlukhovskyi   +7 more
doaj   +1 more source

Research On Real-time Detection Algorithm Of Rail-surface Defects Based On Improved YOLOX

Journal of Applied Science and Engineering, 2022
Real-time detection of rail surface defects is an important part of the future railway automation detection. Because of rail surface defects show multi-scale, small difference between background and prospect, therefore, a improved YOLOX real-time defect ...
Yongzhi Min, Jicheng Guo, Kun Yang
doaj   +1 more source

RSDNet: A New Multiscale Rail Surface Defect Detection Model

Sensors
The rapid and accurate identification of rail surface defects is critical to the maintenance and operational safety of the rail. For the problems of large-scale differences in rail surface defects and many small-scale defects, this paper proposes a rail ...
Jingyi Du, Ruibo Zhang, Rui Gao, Lei Nan, Yifan Bao   +4 more
doaj   +1 more source

Reliability of rail transverse flaw detection by means of an embedded ultrasonic based device

MATEC Web of Conferences, 2018
The main causes of train derailment are related to rail defects such as head surface defects, horizontal defects, vertical longitudinal split defects, star cracks at colt holes and diagonal crack in web. The most adverse form of these defects consists of
Benzeroual Hajar, Khamlichi Abdellatif, Zakriti Alia   +2 more
doaj   +1 more source

Ohio Hub economic impact analysis. Slide presentation [PDF]

, 2007
Title from PDF cover (viewed on Jan. 9, 2008).; "September 20, 2007."; Includes bibliographical references.; Harvested from the web on 1/8/08Gem Public Sector Services (GEM) was retained by the Ohio Rail Development Commission (ORDC) to evaluate the ...
Ohio Rail Development Commission.
core   +3 more sources

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., Edwards, R.S., Sophian, Ali, Tian, G.Y., Edwards, R. S. (Rachel S.), Sophian, A., Tian, G. Y.   +6 more
core   +1 more source

A Filtering Method for Suppressing the Lift-Off Interference in Magnetic Flux Leakage Detection of Rail Head Surface Defect

Applied Sciences, 2022
Magnetic flux leakage (MFL) detection is a common nondestructive detection method which is usually used to detect the surface defects of steel pipes and rails.
Yinliang Jia, Yichen Lu, Longhui Xiong, Yuhua Zhang, Ping Wang, Huangjian Zhou   +5 more
doaj   +1 more source

Ambient‐Stable Transparent P‐Type CuI Transistors Via Room‐Temperature Pulsed Laser Deposition

Advanced Functional Materials, EarlyView.
An in situ PLD fabricated AlOx${\rm AlO}_x$/CuI/AlOx${\rm AlO}_x$ sandwich structure enables stable CuI TFTs with a field‐effect mobility of 2.3 ±$\pm$ 0.7 cm2${\rm cm}^{2}$ V−1${\rm V}^{-1}$ s−1${\rm s}^{-1}$ and excellent ambient stability. Complementary inverters based on CuI:Rb and ZnO:Al exhibit rail‐to‐rail voltage transfer characteristics and an
Yang Chen, Susanne Selle, Michael S. Bar, Michael Lorenz, Holger von Wenckstern, Marius Grundmann   +5 more
wiley   +1 more source

TSSTNet: A Two-Stream Swin Transformer Network for Salient Object Detection of No-Service Rail Surface Defects

, 2022
The detection of no-service rail surface defects is important in the rail manufacturing process. Detection of defects can prevent significant financial losses.
Kechen Song, Chi Wan, Shuai Ma
core   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source