Results 11 to 20 of about 1,027,147 (317)

Electrostatic generator enhancements for powering IoT nodes via efficient energy management [PDF]

open access: yesMicrosystems & Nanoengineering
Electrostatic generators show great potential for powering widely distributed electronic devices in Internet of Things (IoT) applications. However, a critical issue limiting such generators is their high impedance mismatch when coupled to electronics ...
Zibo Wu   +5 more
doaj   +2 more sources

Review on Fault Diagnosis Technology for High-speed EMU Gearboxes

open access: yesJixie chuandong, 2023
The gearbox is an important component of the system of high-speed trains, which is susceptible to damage and failure due to the long-term high-speed and heavy-load working environment, so it is important to diagnose the faults of high-speed train ...
Zhang Jianchao   +4 more
doaj   +1 more source

Multi-objective aerodynamic optimization design of high-speed maglev train nose [PDF]

open access: yesRailway Sciences, 2022
Purpose – The nose length is the key design parameter affecting the aerodynamic performance of high-speed maglev train, and the horizontal profile has a significant impact on the aerodynamic lift of the leading and trailing cars Hence, the study analyzes
Shuanbao Yao, Dawei Chen, Sansan Ding
doaj   +1 more source

Study of the Precipitation Kinetics, Microstructures, and Mechanical Properties of Al-Zn-Mg-xCu Alloys

open access: yesMetals, 2022
Microstructures and mechanical properties of Al-5Zn-2.6Mg alloys with 0.24, 0.43, and 0.91 wt.% Cu were studied and the precipitation rate and activation energy at 378, 393, and 408 K were calculated using the Arrhenius equation in this work.
Aiqin Tian   +3 more
doaj   +1 more source

Analysis and Solution of Electromagnetic Emission of High-speed EMU

open access: yes机车电传动, 2020
In order to solve the problem of electromagnetic emission problem of high-speed EMU in the fixed frequency band during the type test, the electrical principle system of vehicle traction drive system was decomposed.
Nan JIA, Qiumin ZHANG
doaj   +1 more source

Investigation on the fluid-solid coupling effect in high-speed train’s windshield structure

open access: yesAlexandria Engineering Journal, 2023
The high-speed train’s windshield structure is vital to the boundary layer development and drag reduction design. Up to date, windshield structures are assumed as rigid body in most train aerodynamic numerical simulations.
Jiangchuan Ma   +7 more
doaj   +1 more source

A lightweight YOLOX-based model for detection of metallic gaskets on High-speed EMU wheelset

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
In order to solve the requirements of real-time detection on metallic gaskets of wheelset assembly under the condition of limited hardware resources, here we propose an improved lightweight YOLOX-like network that can be deployed on mobile devices with ...
Tengfei Wang   +4 more
semanticscholar   +1 more source

Design of permanent magnet traction system for a new generation of high-speed EMU

open access: yes机车电传动, 2023
In order to promote scientific and technological innovation in the field of high-speed railway equipment, a new generation of 400 km/h EMU is attempted to create, which is faster, safer, more environment-friendly, energy-saving, intelligent. Based on the
WANG Lei   +3 more
doaj  

Can Greece be Expelled from the Eurozone? Toward a Default Rule on Expulsion from International Organizations [PDF]

open access: yes, 2016
The ongoing European crisis has raised uncomfortable questions about the conditions under which treaty-based unions of nations like the EU or the EMU can legally expel a member—Greece being the most obvious candidate.
Blocher, Joseph   +2 more
core   +2 more sources

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