Results 61 to 70 of about 1,480 (206)

Multifunctionality of Single‐Atom‐Thick 2D Magnetic Atoms in Nanolaminated M2AX: Toward Permanent Magnets and Topological Properties

Advanced Physics Research, Volume 4, Issue 6, June 2025.
High‐throughput calculations unveil the stability, magnetic behavior, and transport properties of M2AX phases with magnetic A elements, predicting 139 metastable compounds. Highlights include high‐Curie‐temperature magnets, exceptional magneto‐crystalline anisotropy, and tunable anomalous Hall and Nernst conductivities, offering new insights and ...
Chen Shen, Fu Li, Yixuan Zhang, Ruiwen Xie, Ilias Samathrakis, Bing Han, Hongbin Zhang   +6 more
wiley   +1 more source

Effect of Structural Parameters on Pantograph–Catenary Interaction Performance in High-Speed Railways

Infrastructures
With the rapid development of high-speed railways, the dynamic performance of the pantograph–catenary system plays a crucial role in ensuring the safe and stable operation of trains.
Tong Xing, Xufan Wang, Like Pan, Yang Song, Dehai Zhang, Qun Yu   +5 more
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

Research on the phased development characteristics of pantograph catenary arc under low air pressure and strong airflow

机车电传动, 2023
Pantograph catenary arc is an important factor threatening the current-receiving quality of high-speed trains. The motion characteristics and development law of pantograph arc under low air pressure are significantly different from those under ...
XU Yue, QIAN Pengyu, CHEN Huan, PENG Wei, YANG Zefeng   +4 more
doaj  

DEVELOPMENT OF HIGH-REACH PANTOGRAPHS FOR HIGH-SPEED RAILWAYS [PDF]

, 2023
The pantograph’s purpose is to transfer electrical power from the overhead contact line to the train’s electric propulsion unit. To perform its function adequately, it is necessary to maintain the static contact force between the pantograph and the contact line within the values prescribed by appropriate standards for the entire extension range of the ...
Peković, Ognjen, Aleksić, Ivan, Svorcan, Jelena, Volf, Goran, Matić, Dušan, Kirin, Snežana, Mitrović, Nenad   +6 more
openaire  

Pantograph and catenary system with double pantographs for high-speed trains at 350 km/h or higher [PDF]

Journal of Modern Transportation, 2011
The paper is aimed at developing an optimized design of the pantograph and catenary system with double pantographs at a speed of 350 km/h for the Wuhan-Guangzhou high-speed railway. First, the pantograph and catenary system for the Beijing-Tianjin high-speed railway was analyzed to verify whether its design objective could be fulfilled.
Weihua Zhang, Ning Zhou, Ruiping Li, Guiming Mei, Dongli Song   +4 more
openaire   +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

A numerical study on aerodynamic noise sources of high-speed train

, 2012
Firstly, in order to investigate the noise generation mechanisms of the pantograph, the key source in aerodynamic noise generation, the basic models of a circular cylinder and a series of rectangular cylinders were numerical studied respectively and ...
Yang GW(杨国伟), 杨焱, Yang Y(杨焱)   +2 more
core   +1 more source

Optimization Design Scheme for Aerodynamic Noise Reduction in Pantograph Area of High-speed Railway EMU

Chengshi guidao jiaotong yanjiu
［Objective］ With the increase of train operating speed, noise levels have gradually become a critical factor restricting the development of high-speed railways.
YU Yongge, WANG Chengtao, GAO Yang, YU Wanyi, MA Changfu, ZHANG Guoqin   +5 more
doaj   +1 more source

Research on Aerodynamic Noise Reduction for High-Speed Trains

Shock and Vibration, 2016
A broadband noise source model based on Lighthill’s acoustic theory was used to perform numerical simulations of the aerodynamic noise sources for a high-speed train.
Yadong Zhang, Jiye Zhang, Tian Li, Liang Zhang, Weihua Zhang   +4 more
doaj   +1 more source