Results 211 to 220 of about 18,599 (263)

Laser-Controlled Propulsion of a Microbubble Rolling on a Carbon Nanocoil Rail. [PDF]

Nanomaterials (Basel)
Liu Y, Li S, Sun Y, Li J, Dai Y, Zhang M, Shen J, Pan L.   +7 more
europepmc   +1 more source

An integrated method for railway fastener defect detection and geometric parameter measurement using 3D line laser sensor. [PDF]

PLoS One
Yuan X, Liu W, Ma Y, Wang Y, Liu B.
europepmc   +1 more source

Optimization and validation of traction performance for an eight-axle heavy-haul locomotive during gradient starting. [PDF]

Sci Rep
Liu Y, Wu X, Ma P, Yuan X.
europepmc   +1 more source

Application-oriented classification and performance analysis of precision linear feed mechanisms for machine tools. [PDF]

Sci Prog
Zhou J, Yu H, He M, Zhang Y, Luan X, Liu Y.   +5 more
europepmc   +1 more source

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Influence factors analysis of rail potential in urban rail transit

Microelectronics Reliability, 2018
Abstract Rail potential is affected by a variety of influence factors in the urban rail transit. This paper proposes a state space average (SSA) model of the traction power system to explore the effects caused by the traction network resistance, inductance, capacitance and rail-to-ground resistance.
Jingda Gu, Xiaofeng Yang, Trillion Q. Zheng   +2 more
openaire   +1 more source

Negative Impedance Converter for Reducing Rail Potential in Urban Rail Transit

2020
In conventional traction power supply system (C-TPSS), the traction current returned to the substation through the running rail. Running rail current leaks into the earth forming stray current, which inevitably serious corrosions on the buried metals and endangers personal safety.
Wei Guo, Xiaofeng Yang, Jingda Gu, Trillion Q. Zheng   +3 more
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Stray Current and Rail Potential Simulation System for Urban Rail Transit

2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC), 2018
A system designed to simulate the dynamic distribution of stray current and rail potential for urban rail transit is proposed. In the system, a new bidirectional variable resistance module (BVRM) is used to simulate the train movement under different operation conditions.
Xiaofeng Yang, Hao Xue, Huikang Wang, Trillion Q. Zheng   +3 more
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Evaluation of rail potential control devices performance for control of rail potential of DC electrified railway systems

IET International Conference on Railway Engineering 2008 (ICRE 2008), 2008
Electrified railway systems are widely used for urban transportation around the world. In most DC electrified transit systems the running rails are used as the return conductor for traction current. Due to the resistances of running rails and rail-to-ground in totally floating earth systems, there will be a potential rise between the running rails and ...
M. Niasati, A. Gholami
openaire   +1 more source

Maximum Permissible Rail Potential

IEEE Vehicular Technology Magazine, 2011
This article reviews the current American and European standards and codes for maximum permissible rail voltage on DC traction power systems. The principles of negative grounding device (NGD) operation and its corresponding voltage settings are also briefly discussed.
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