Results 61 to 70 of about 4,032 (228)

Research on dynamic characteristics of pantograph arc under cross wind

机车电传动, 2022
The pantograph arc has become an important factor restricting the further development of high-speed trains. Therefore, in-depth research on the characteristics of pantograph arc is of great significance for further analyzing the damage characteristics of
SUN Chuanming, LU Chao, MU Tingyou, ZHANG Zuoqin   +3 more
doaj  

Artificial Intelligence Models Accuracy for Odontogenic Keratocyst Detection From Panoramic View Radiographs: A Systematic Review and Meta‐Analysis

Health Science Reports, Volume 8, Issue 4, April 2025.
ABSTRACT Background and Aims Odontogenic keratocyst (OKC) is a radiolucent jaw lesion often mistaken for similar conditions like ameloblastomas on panoramic radiographs. Accurate diagnosis is vital for effective management, but manual image interpretation can be inconsistent.
Reyhaneh Shoorgashti, Mohadeseh Alimohammadi, Sana Baghizadeh, Bahareh Radmard, Hooman Ebrahimi, Simin Lesan   +5 more
wiley   +1 more source

Aerodynamic noise from a train pantograph

, 2014
Many studies have shown that when the speed of high speed trains exceeds around 300km/h, aerodynamic noise becomes the most significant noise source. The pantograph, or current collector, is mounted on the top of the train and is therefore not shielded ...
Liu, Xiaowan, Hu, Zhiwei, Jurdic, Vincent, Thompson, David J.   +3 more
core  

Analysis of Metro Vehicle Network-side Transient Overvoltage Based on Pantograph-catenary Arc Reignition Model

Chengshi guidao jiaotong yanjiu
ObjectiveAs the core for power supply system of urban rail transit vehicles, the pantograph-catenary system undertakes the important functions of transmitting electrical energy to vehicles through catenary and ensuring their normal operation.
Shiyu ZHANG, Yingqiang GUO, Dajie LIN, Ce ZHENG   +3 more
doaj   +1 more source

Impact of Temperature Variability on the Caputo Fractional Malaria Model

Engineering Reports, Volume 7, Issue 3, March 2025.
This study aims to analyze the age related characteristics of malaria in human host by exploring Caputo fractional order models with temperature variability, that is looked into the combined effects of fractional order and temperature variability on malaria dynamics.
Dawit Kechine Menbiko, Chernet Tuge Deressa   +1 more
wiley   +1 more source

Study of Vehicle Pantograph-catenary Dynamic Performance Based on ADAMS

机车电传动, 2018
Pantograph-catenary dynamics performance determined the current receiving quality. The pantograph-catenary dynamics model was built according to CED160D pantograph and simple chain contacting catenary with ADAMS. The operating state of the train was used
LIU Nan
doaj  

Pantograph–Catenary Interaction Prediction Model Based on SCSA-RBF Network

Applied Sciences
As a traditional numerical simulation method for pantograph–catenary interaction research, the pantograph–catenary finite element model cannot be applied to the real-time monitoring of pantograph–catenary contact force, and the computational cost ...
Mengzhen Wu, Xianghong Xu, Haochen Zhang, Rui Zhou, Jianshan Wang   +4 more
doaj   +1 more source

Pareto Optimization of the Integration of Renewables for the Supply of Battery‐Electric and Hydrogen‐Electric Multiple Units at a Single Site

Energy Science &Engineering, Volume 13, Issue 2, Page 582-597, February 2025.
Optimization framework for battery electric and hydrogen multiple units. ABSTRACT Battery‐ and hydrogen‐powered trains are emerging technologies that have the potential to play a key role in the decarbonization of railway lines for which full trackside electrification is not feasible.
Stefan Arens, Alexander Windt, Christoph Streuling, Benedikt Hanke   +3 more
wiley   +1 more source

Abnormal Condition Detection Method for Urban Rail Vehicle Pantograph Horn

Chengshi guidao jiaotong yanjiu
[Objective] Rail transit vehicle catenary-pantograph system is an important power supply media for electric bus. The structural integrity of its critical component pantograph horn directly impacts train operational safety.Traditional manual inspections ...
BAI Jiakai, LI Minghang, ZHOU Yuxiang, ZHAO Mengshuan, LIU Feiran   +4 more
doaj   +1 more source

A New Contactless Fault Diagnosis Approach for Pantograph-Catenary System Using Pattern Recognition and Image Processing Methods

Advances in Electrical and Computer Engineering, 2014
Comfort and safety of railway transport has become more important as train speeds continue to increase. In electrified railways, the electrical current of the train is produced by the sliding contact between the pantograph and catenary. The quality of
AYDIN, I., KARAKOSE, M., AKIN, E.
doaj   +1 more source