Results 1 to 10 of about 1,646,364 (217)

A Novel Arc Detection Method for DC Railway Systems

open access: yesEnergies, 2021
Electric arcing due to contact interruption between the pantograph and the overhead contact line in electrified railway networks is an important and unwanted phenomenon.
Yljon Seferi   +3 more
doaj   +1 more source

Modelling and Analysis of Expansion Joints’ Effect on Dynamic Performance of Railway Rigid Overhead System

open access: yesSensors, 2023
This study focuses on developing a comprehensive model of a rigid overhead system, which includes essential components such as the suspension structure, positioning clamp, and expansion joint.
Xiaohe Feng   +5 more
doaj   +1 more source

Impact of Surface Roughness on Pantograph-Catenary Current Collection Quality

open access: yesIEEE Access, 2022
In the pantograph-catenary system, the change of the surface roughness of pantograph sliding plate directly affects the current collection quality of electric locomotive.
Fengyi Guo   +4 more
doaj   +1 more source

Effect of Overhead Contact Line Pre-Sag on the Interaction Performance with a Pantograph in Electrified Railways

open access: yesEnergies, 2022
In the high-speed rail industry, the overhead contact line erected along the railroad is used to supply the electricity to the high-speed train via a pantograph on the carbody’s roof.
Guiming Mei, Yang Song
doaj   +1 more source

Diagnostics and Forecasting of the Turbo-generators Sliding Current Collection Units Technical Condition [PDF]

open access: yesE3S Web of Conferences, 2020
The article is about assessing the reliability levels of the main diagnostic procedures, determining prognostic recommendations, developing a three-factor regression expert model, obtaining a generalized assessment of the turbo-generator sliding current ...
Plokhov Igor   +4 more
doaj   +1 more source

Increase in environmental safety of system of current collecting of electric elevated transport [PDF]

open access: yesОмский научный вестник, 2019
The article presents the advantages of the available types of elevated electric transport. The conditions have been indicated for ensuring reliable, economical and environmentally current of collection by electric transport.
K. S. Markelova   +2 more
doaj   +1 more source

Data collection within patient support programs in Canada and implications for real-world evidence generation: the authors’ perspective

open access: yesJournal of Pharmacy & Pharmaceutical Sciences, 2023
Patient support programs (PSPs) offer a unique opportunity to collect real-world data that can contribute to improving patient care and informing healthcare decision making.
Allison Wills   +2 more
doaj   +1 more source

Research on dynamic characteristics of shoegear-conductor rail system considering conductor rail joint gap

open access: yes机车电传动, 2023
In urban rail transit, in addition to overhead catenary system, the electric shoegear-conductor rail system is often used for energy supply of trains. In the shoegear-conductor rail system, the electric shoegear slides along the conductor rail, and the ...
YU Wenbin
doaj  

Population health data in KSA: Status, challenges, and opportunities

open access: yesJournal of Taibah University Medical Sciences, 2022
Population dynamics and health risk factors keep changing in the KSA, requiring continuous research and quality data. We aimed to review the current status of population health data, outline the available opportunities for data utilization, and provide ...
Saleh A. Alessy, PhD   +4 more
doaj   +1 more source

Resource evaluation of friction pair “contact wire – contact strip” [PDF]

open access: yesArchives of Transport, 2017
Purpose. Investigate the impact of current collection system parameters and external factors on the resource of friction pair “contact wire – contact strip”. Relevance.
Andrii V. Antonov, Víctor G. Sychenko
doaj   +1 more source

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