Results 51 to 60 of about 5,511 (234)

Laser metal deposition characterization study of metal additive manufacturing repair of rail steel specimens

Virtual and Physical Prototyping, 2023
Research on rail steel repair with Stellite 6 powder using a laser metal deposition process was investigated and reported in this study. Rail failures due to excessive wear and other rail head defects can increase the risk of operation and reliability ...
Alagu Subramaniam Nellian, John Hock Lye Pang   +1 more
doaj   +1 more source

Deep neural network for diagnostics of railway track components

Вестник Самарского государственного технического университета. Серия: Технические науки, 2022
The problem of increasing the speed of railway transportation and ensuring reliability is associated with constant monitoring of the condition of the railway tracks.
Sergey P. Orlov, Nikolai A. Efimushkin, Natalia V. Efimushkina   +2 more
doaj   +1 more source

Multidimensional and Multifunctional Laser‐Induced Graphene (LIG) for Point‐of‐Care and Wearable Biosensing, Theranostics, and Bioactive Interfaces Toward Personalized Healthcare and Regenerative Medicine

Advanced Science, EarlyView.
Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang, Yurou Yuan, Xiaohong Ding, Wing Cheung Mak   +3 more
wiley   +1 more source

Measurements of rail surface defects by using eddy current sensor

, 2021
This material is part of the study of the rail fault detection system through sensing using an eddy current probe. In it, the sensor is installed directly on rail vehicles.
Carvalho, A (via Mendeley Data)
core   +1 more source

Implantation‐On‐Chip: An AI‐Based Platform for Monitoring the Embryo Trophoblast–Endometrial Stroma Cross Talk With Xenobiotics Interference

Advanced Intelligent Systems, EarlyView.
We present a novel AI‐integrated implantation‐on‐chip platform that enables mimicking and monitoring the maternal–fetal interactions at the early phases of human embryo implantation with high spatiotemporal resolution. The complexity of the trophoblast invasion process was addressed by conducting the analysis at global (rate of invasion) and local ...
Joanna Filippi, Valentina Lacconi, Arianna Mencattini, Micol Massimiani, Dolores Lobresca, Gaia Posanzini, Alessia Riccardi, Paola Casti, Michele D’Orazio, Gianni Antonelli, Giorgia Curci, Luisa Campagnolo, Eugenio Martinelli   +12 more
wiley   +1 more source

Modeling the dynamic behavior of railway track taking into account the occurrence of defects in the system wheel-rail

MATEC Web of Conferences, 2017
This paper investigates the influence of wheel defects on the development of rail defects up to a state where rail prompt replacement becomes necessary taking into account different models of the dynamic contact between a wheel and a rail. In particular,
Loktev Alexey, Sychev Vyacheslav, Gluzberg Boris, Gridasova Ekaterina   +3 more
doaj   +1 more source

A Fuzzy Adaptive PID Control Method for Novel Designed Rail Grinding Equipment

IEEE Access, 2023
Rail defects appear in a greater variety and frequency with the rapid development of High-Speed Rail (HSR), which seriously affects the safe operation of trains. Rail grinding is one of the common methods used to eliminate these defects.
Xiao Cheng, Jiangzhong Qian, Changwan Zheng, Fengxiang You, Haixia Wang, Jianfa Zhang, Shaolong Kuang   +6 more
doaj   +1 more source

PPO‐Based Reinforcement Learning for the Semi‐Active Vibration Control of MDOF Platform

AI &Innovation, EarlyView.
ABSTRACT Aiming at the coupled vibration problem of a multi‐degree‐of‐freedom (MDOF) vibration isolation platform under eccentric excitation, this paper proposes a semi‐active vibration control strategy based on Proximal Policy Optimization (PPO) ‐based reinforcement learning (PPO RL).
Wei Huang, Jian Xu
wiley   +1 more source

Automated Identification and Localization of Rail Internal Defects Based on Object Detection Networks

Applied Sciences
The timely identification of rail internal defects and the application of corresponding preventive measures would greatly reduce catastrophic failures, such as rail breakage.
Sicheng Wang, Bin Yan, Xinyue Xu, Weidong Wang, Jun Peng, Yuzhe Zhang, Xiao Wei, Wenbo Hu   +7 more
doaj   +1 more source

Finite element modeling of the aluminothermic welding with internal defects and experimental analysis

MATEC Web of Conferences, 2012
There are several hundreds aluminothermic welds and tenth of new welds being made daily on the Moroccan rail network. Although the aluminothermic welding technique is well proven, it is a critical safety component of the rail infrastructure.
Sidki F., Mouallif I., Mouallif Z., Benali A.   +3 more
doaj   +1 more source