Results 21 to 30 of about 10,131 (266)

Accounting power supply schemes for traction substations in the calculation of short circuits in the AC traction network

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2019
When calculating short-circuit currents in the AC traction network, it is assumed that each of the traction substations receives power from uncoupled external power supply sources with known resistances. In some cases, especially when powering a group of
Yu. I. Zharkov   +2 more
doaj   +1 more source

Research on Partial Model Extraction of Railway Infrastructure Based on the Industry Foundation Classes Files

open access: yesIEEE Access
To effectively cope with the ever-growing intricacy of railway Industry Foundation Classes (IFC) file sizes, the adoption of a partial model approach has consistently been recommended as a highly effective strategy.
Yunshui Zheng, Yimin Shi, Xinkai Wang
doaj   +1 more source

A Novel Co-Phase Power Supply System for Electrified Railway Based on V Type Connection Traction Transformer

open access: yesEnergies, 2021
Power quality and neutral section are two technical problems that hinder the development of electrified railway to high-speed and heavy railway. The co-phase power supply technology is one of the best ways to solve these two technical problems.
Shaofeng Xie, Yiming Zhang, Hui Wang
doaj   +1 more source

Intellectualization of traction power supply operation control systems

open access: yesScience and Transport Progress, 2010
In the article the expert management systems on the base of synthesis of heuristic and causal knowledge are offered that allows choosing the energy-saving modes and minimizing the power flow-overs and energy losses in electric-traction networks.
openaire   +3 more sources

Developing evidence‐based, cost‐effective P4 cancer medicine for driving innovation in prevention, therapeutics, patient care and reducing healthcare inequalities

open access: yesMolecular Oncology, EarlyView.
The cancer problem is increasing globally with projections up to the year 2050 showing unfavourable outcomes in terms of incidence and cancer‐related deaths. The main challenges are prevention, improved therapeutics resulting in increased cure rates and enhanced health‐related quality of life.
Ulrik Ringborg   +43 more
wiley   +1 more source

Design and research on the function of lithium-ion batteries emergency traction system for rail vehicles

open access: yesAdvances in Mechanical Engineering, 2018
Urban rail vehicle power supply short interruptions or prolonged paralysis situation sometimes occurs, which will cause the entire line outage. If the train through the battery to achieve emergency traction, it will be able to effectively solve the ...
Xiaoming Xu   +5 more
doaj   +1 more source

Research on uninterruptable power supply technology for auxiliary winding of electric locomotive while passing the neutral section [PDF]

open access: yesRailway Sciences
Purpose – Auxiliary power system is an indispensable part of the train; the auxiliary systems of both electric locomotives and EMUs mainly are powered by one of the two ways, which are either from auxiliary windings of traction transformers or from DC ...
Yuliang Du
doaj   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Research on a Fault Diagnosis Method for the Braking Control System of an Electric Multiple Unit Based on Deep Learning Integration

open access: yesMachines
A fault diagnosis method based on deep learning integration is proposed focusing on fault text data to effectively improve the efficiency of fault repair and the accuracy of fault localization in the braking control system of an electric multiple unit ...
Yueheng Wang   +4 more
doaj   +1 more source

Electrical characteristics of new three-phase traction power supply system for rail transit

open access: yesRailway Engineering Science, 2022
A novel three-phase traction power supply system is proposed to eliminate the adverse effects caused by electric phase separation in catenary and accomplish a unifying manner of traction power supply for rail transit.
Xiaohong Huang   +6 more
doaj   +1 more source

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