Results 61 to 70 of about 491 (211)

Diagnosis and Study on Abnormal Noise of EMUs Bearing

机车电传动, 2020
According to the statistics of advanced repairs for high-speed EMUs, rust and peeling are the main faults in bearing system. At present, there are two kinds of bearing fault monitoring systems for high-speed EMUs, i.e., on-vehicle shaft temperature ...
Junchen HAN, Litong CUI, Xiaofeng LI, Chunyuan SONG, Lichao ZHAN   +4 more
doaj  

Magneto‐NIR‐II‐Programmed Cascade Nanozymes Unlocking Blood–Brain Barrier Translocation and Autophagic Resistance in Glioblastoma

Advanced Science, EarlyView.
Magneto‐NIR‐II‐programmed NFSH nanozymes integrate magnetic blood–brain barrier (BBB) translocation, CD44 targeting, multimodal imaging, and cascade catalytic therapy for glioblastoma. Alternating magnetic fields and NIR‐II irradiation amplify ferroptosis, release H2S, suppress autophagic and mitophagic repair, and reshape the immune microenvironment ...
Ruocan Liu, Yundi Wu, Shuai Zhang, Hongjuan Zhao, Jiping Zheng, Shiyang Shao, Jianqiang Chen, Xilong Wu   +7 more
wiley   +1 more source

Beat-less Control Method for High-speed EMU

, 2020
Due to the application of the single-phase power supply mode in the traction drive system of high-speed EMU, the DC output voltage of the single-phase pulse rectifier is superimposed with an AC ripple voltage component which the frequency is twice the grid frequency.
Yong LIU, Wenqing MEI, Liang HU, Weiwei GAN, Yongcan LYU   +4 more
openaire   +1 more source

High-Speed EMU TCMS Design and LCC Technology Research

Engineering, 2017
This paper introduces the high-speed electrical multiple unit (EMU) life cycle, including the design, manufacturing, testing, and maintenance stages. It also presents the train control and monitoring system (TCMS) software development platform, the TCMS testing and verification bench, the EMU driving simulation platform, and the EMU remote data ...
Hongwei Zhao, Zhiping Huang, Ying Mei
openaire   +2 more sources

Thickness‐Tuned Berry Curvature in vdW Epitaxial Cr3Te4 Ultrathin Films

Advanced Electronic Materials, EarlyView.
An investigation of thickness‐modulated Berry curvature in stoichiometric, high‐quality van der Waals epitaxial Cr3Te4 films. Surface and interface Te(CrTe2)‐termination enables Fermi level shifting via thickness variation, modulating Berry curvature near the band crossing point, thereby establishing termination engineering (may called Terminonics) as ...
Minghui Gu, Guangyao Miao, Xiaoran Liu, Weihua Wang, Dongdong Xiao, Meng Meng, Jiandong Guo   +6 more
wiley   +1 more source

Rapid and Stable Recovery Method in Re-adhesion for High-cold EMUs

机车电传动, 2018
The bad operation environment of the high-speed EMUs is a big challenge to adhesion control of the rail between the wheel and rail. A method of rapid and stable recovery method in re-adhesion for high-cold EMUs was proposed, which could ensure the smooth
ZHANG Liwei, YU Lizhi, ZHANG Zhengfang
doaj  

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

The Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen, Ivo Jacobs, Kristina Kverková, Lona Lalić, Alexandra Polonyiová, Patrik Stehlík, Stephan A. Reber, Mathias Osvath   +7 more
wiley   +1 more source

Research of Aerodynamic Design Method for the Intercity EMUs

机车电传动, 2015
According to the running speed and operating environment of the intercity EMUs, the major challenges for the aerodynamic design of the intercity EMUs were presented from the comfort and economy.
DING Sansan, DU Jian, LIU Jiali, SHANG Keming   +3 more
doaj  

Research on Operation and Maintenance Mode and Maintenance Facility Design of Power Centralized EMU

机车电传动, 2021
In order to meet the needs of servicing and maintenance of power centralized EMU, there are more and more new maintenance facilities for power centralized EMU and upgrading and reconstruction projects for existing passenger service center.
Xiangyang TIAN
doaj  

Technological development and prospect of China's high speed EMU bogies

, 2023
Bogie is the running device that supports, pulls and realizes the brake of vehicle body, buffers vibration and rotates relative to the vehicle body, which determines the safety, reliability and quality of train operation. The bogie of China's high-speed EMU has undergone three stages of development: technology introduction, innovation based on ...
LI Qiuze, SHAN Wei, ZHANG Yingchun, YANG Guangxue, LIANG Shulin   +4 more
openaire   +1 more source