Results 61 to 70 of about 507 (175)

Novel Vision-Based Abnormal Behavior Localization of Pantograph-Catenary for High-Speed Trains

IEEE Access, 2019
To ensure the safe operation of high-speed trains, catenary anomaly detection and alerting security have become an urgent problem to solve. In this paper, we propose a novel method for abnormal behavior localization of a pantograph-catenary for high ...
Yiping Luo, Qianru Yang, Scarlett Liu
doaj   +1 more source

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

Cluster Analysis Based Arc Detection in Pantograph-Catenary System

Journal of Advanced Transportation, 2018
The pantograph-catenary system, which ensures the transmission of electrical energy, is a critical component of a high-speed electric multiple unit (EMU) train. The pantograph-catenary arc directly affects the power supply quality.
Shize Huang, Liangliang Yu, Fan Zhang, Wei Zhu, Qiyi Guo   +4 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

Interior Noise Reduction Method of Pantograph Areas for High-speed Trains Based on Active Jet Technology [PDF]

Journal of Applied Fluid Mechanics
The interior noise caused by the pantograph area is greater than that caused by other areas, and the impact of this pantograph area becomes more significant as the speed of high-speed trains increases, especially above 350 km/h.
D. Liu, X. Miao, Z. Zhang, J. Yang, T. Yuan, R. Song   +5 more
doaj   +1 more source

A New Active Control Strategy for Pantograph in High-Speed Electrified Railways Based on Multi-Objective Robust Control

IEEE Access, 2019
In high-speed railways, the quality of current collection of high-speed train is directly determined by the contact force between the contact wire of the catenary and the registration strip of the pantograph.
Jing Zhang, Hantao Zhang, Baolin Song, Songlin Xie, Zhigang Liu   +4 more
doaj   +1 more source

Impact of Damaged Dropper on Pantograph–Catenary Current Collection Quality in High-Speed Railways

Inventions
The regularity of the catenary system and the stability of pantograph–catenary interaction are crucial for ensuring continuous and stable current collection quality in high-speed trains.
Caizhi Yang, Huan Zhang, Like Pan, Yuan Yuan, Qun Yu, Qing Xiong, Ziqian Yang, Wenfu Wei   +7 more
doaj   +1 more source

EMUs Pantograph Aerodynamics Experimental Research in Dropping Status under Strong Wind Condition

机车电传动, 2016
When EMUs run at a high speed, the pantograph would be affected by airflow and blown up in dropping status, which would result in catenary short-circuit fault. In order to evaluate the pantograph aerodynamics characteristics in dropping status and ensure
JIAO Wengen
doaj  

Analysis of Pantograph–Catenary Current Collection Performance Under Speed-Upgrading Operating Conditions

Vehicles
To support the safe operation and technological promotion of existing line speed-up projects, this paper presents an assessment method for pantograph–catenary contact performance under the 200 km/h speed conditions, using the Guangzhou–Shenzhen Lines I ...
Liqian Wang, Yantao Liang, Dehai Zhang, Xufan Wang, Tong Xing, Yang Song   +5 more
doaj   +1 more source

Multi-parameter optimizations of elastic chain catenary based on response surface methodology for high-speed railway

Frontiers in Mechanical Engineering
As train operating speeds increase, the quality of pantograph-catenary current collection deteriorates, sometimes even resulting in contact loss. To ensure stable current collection during high-speed operation, it is crucial to optimize the design ...
Zongfang Zhang, Maoyou Zhang
doaj   +1 more source