Results 81 to 90 of about 5,027 (287)
High-speed EMU Emergency Braking Technology
, 2018 Emergency braking ensures that the EMU stops safely in the shortest distance. This paper presented the triggering condition of emergency braking from the standpoint of fail-safe principle, and introduced the realization method of train security loop.
LUO Feiping +4 more
openaire +1 more source
, 2004 We define social reciprocity as the act of demonstrating one's disapproval, at some personal cost, for the violation of widely-held norms (e.g., don't free ride).
Carpenter, Jeffrey P. +1 more
core
Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade
Biological Reviews, EarlyView.ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan +2 more
wiley +1 more source
Research and Application on Drive Tracking and Testing System for High-speed EMUs
机车电传动, 2011 Testing system was studied and developed which could be used for real-time collection of parameters including electric, temperature, and ventilation of each critical component on EMUs tracking drive unit.
邓学寿, 肖石
doaj
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 +4 more
openaire +1 more source
Two Typical Wheel Wear Evolution Characteristics and Its Influence on Dynamic Performance of High-speed EMU [PDF]
, 2022 Maorui Hou +4 more
openalex +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This article explores high‐entropy‐stabilized oxides (HEOs) as novel functional materials for addressing critical issues in lithium–sulfur (Li–S) batteries, including lithium polysulfide (LPS) shuttling, inadequate conductivity, and slow redox kinetics.
Hassan Raza +10 more
wiley +1 more source
Modeling and Simulation Analysis of High-speed EMUs Emergency Brake System
机车电传动, 2014 Based on operating principle and performance of high-speed EMUs emergency brake system, AMESim was utilized to establish car pneumatic emergency brake model, vehicle brake submodel and EMUs emergency brake model respectively. On this basis, the composite
CAI Li, CHEN Shu-jun, DU Qun-wei
doaj
Magnetic Electrocatalysts Enabling a High‐Rate Capability in Lithium‐Oxygen Batteries
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This study introduces zinc ferrite (ZnFe2O4) nanoparticles with tunable magnetic properties as bifunctional electrocatalysts for lithium‐oxygen batteries. Under an applied magnetic field, these catalysts significantly enhance oxygen reduction and evolution reactions by promoting spin‐aligned charge transfer and ion diffusion. The approach achieves high
Yimin Chen +7 more
wiley +1 more source
Pantograph Body and Its Installation Strength Research of Test EMUs
机车电传动, 2013 In order to understand pantograph performance on domestic high-speed test EMUs, pantograph mechanical and structural strength was anticipated. Pantograph body and base finite element analysis model of test EMUs was built, and pantograph body parts ...
SUN Chuan-ming
doaj