Results 41 to 50 of about 9,031 (265)

Research on modeling and simulation of traction power supply system of guideway rubber-tires train

open access: yesInternational Journal of Electrical Power & Energy Systems
Guideway rubber-tires system, also known as Rapid rubber-tires trail (RRT), is a new type of urban rail transit. The train uses rubber tires as running wheels and uses guide rails to achieve steering.
Haida Xu   +3 more
doaj   +1 more source

The limit of power flow in the traction power supply system

open access: yesBulletin of scientific research results
Objective: the concept of the limit of power flow is widely used in general industrial power engineering to compare different ways of amplifying an electric network. In this paper, it is proposed to use it to evaluate the operation of traction networks of railways.
Mihail Ivanov, Vladimir Seronosov
openaire   +1 more source

Unproductive electric losses in the traction power of DC supply system

open access: yesScience and Transport Progress, 2010
The research results specifying to the consumption of inactive (reactive by Fryze) power in a DC system of electric propulsion are stated in the article. It is shown that this consumption brings to considerable additional losses of electric energy in the system.
Petrov, A. V., Kostin, M. O.
openaire   +3 more sources

Cellular Responses to Mechanical Cues Across Scales: From Fundamental Insights to Translational Potential

open access: yesAdvanced Healthcare Materials, EarlyView.
This review examines how cellular behavior is regulated by mechanical cues transmitted through soft biomaterials, from single‐cell mechanosensing to tissue‐level adaptation. It highlights why physiological relevance, rather than model complexity alone, is critical for translational mechanobiology and introduces a scoring framework linking material ...
Mathias Polz   +9 more
wiley   +1 more source

Research on the Development Path of Urban Rail Transit Traction Power Supply System Based on Foreign Experience

open access: yesChengshi guidao jiaotong yanjiu
[Objective] In the context of the current urban rail transit towards intelligent,green and low-carbon development, upgrading the traction power supply system, the "heart" of urban rail transit, is of crucial importance for realizing the green and smart ...
HU Ji, LING Chen, SU Jingqi, LIU Shuo
doaj   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Energy-saving Operation Optimization Strategy of Urban Rail Transit Co-phase Energy Storage Power Supply System

open access: yesChengshi guidao jiaotong yanjiu
Objective As modular co-phase power supply devices are used in Guangzhou Metro Line 18,it is necessary to study the energy-saving operation optimization strategy of the co-phase energy storage power supply system in order to solve the problem of low ...
HOU Feng, WANG Shuai, SUN Zhongrui
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Research on Traction Power Supply System for Shanghai Rail Transit Chongming Line

open access: yesChengshi guidao jiaotong yanjiu
[Objective] It is to address issues such as stray current corrosion and limited distance for DC traction power supply systems conventionally using rail return in urban rail transit.
Xiaofeng WANG
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

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