Results 41 to 50 of about 13,513 (277)
A Control Method of Power Supply for EMUs Rescue Towing
机车电传动, 2018 After EMUs failure, it is necessary to rescue and guide the transfer of passengers. To ensure the comfort of the carriages in rescue towing, a control method was proposed to convert kinetic energy into electric energy of the failure EMUs, which could ...
HUANG Hao +4 more
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Handed Magnon Propagation in Easy‐Axis Antiferromagnetic α‐Fe2O3
Advanced Materials, EarlyView.Coherent excitation and detection of handed magnons are achieved in the easy‐axis antiferromagnet α‐Fe2O3. An external magnetic field lifts the degeneracy between left‐ and right‐handed magnons without affecting their propagation velocity. The Dzyaloshinskii–Moriya interaction and anisotropy modulate their amplitude and damping, enabling intrinsic ...
Chang Xu +3 more
wiley +1 more source
Fault Encoding Rules Standard Research for EMUs
机车电传动, 2016 With analysis of EMUs fault encoding application requirement of China Railway Corporation, railway bureaus, andvehicle manufacturers, fault encoding principle was analyzed, and the encoding rules of EMUs fault code, fault brevity code and on-boardfault ...
Xu Li
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Development of Three-level IGBT Module for Autonomous Traction Converter of CRH380A EMUs
机车电传动, 2021 According to the design requirements of three-level power module for traction converter of CRH380A EMUs,combining the main circuit structure characteristics of three-level main circuit power module, IGBT driving circuit, laminated busbar and radiator of ...
Yongjiang LIU +5 more
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Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation
Advanced Materials, EarlyView.Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju +7 more
wiley +1 more source
Design and Verification of New Head Type of Super High-speed EMUs
机车电传动, 2016 To decrease the aerodynamic drag of super high-speed EMUs, integrating high-speed EMUs head type design elements at home and abroad together, a new head type for super high-speed EMUs with speed of 500 km/h was designed.
LI Ming, LI Minggao, LIU Nan, HAN Lu
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National Institute Economic Review, 1996 This article considers the role of fiscal policy within a European Monetary Union. There are two quite different issues. The first is the medium-term problem of deficits and debt. The Maastricht fiscal convergence criteria are usually seen as an imperfect response to the need to contain potentially ‘irresponsible’ fiscal authorities.
Allsopp, C, Vines, D
openaire +2 more sources
Advanced Materials, EarlyView.We show a giant, bias‐field free, deterministic, spin‐orbit‐torque switching of perpendicular hard magnets with HC over 1.3 T. By combining the three‐fold 3m symmetry from topological insulator surface states with the rectangular mm2 symmetry from the 2 x 1 intercalation in Cr3Te4, the interface symmetry is significantly reduced into a unidirectional m
He Ren +6 more
wiley +1 more source
Why Punish: Social Reciprocity and the Enforcement of Prosocial Norms [PDF]
Recently economists have become interested in why people who face social dilemmas in the experimental lab use the seemingly incredible threat of punishment to deter free riding.
Jeffrey Carpenter +2 more
core +3 more sources
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
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