Results 51 to 60 of about 1,135,878 (306)

Partial discharge characteristics of insulation used in inverter-fed traction motor under high frequency impulse

open access: yes, 2012
Stator insulation in inverter-fed traction motors may prematurely lose its function due to continuous square impulses voltage of converters, whose insulation failure mechanism is different from that under power frequency AC voltage. Partial discharge (PD)
Cao, Kaijiang   +3 more
core   +1 more source

Fabrication of Aligned Polycaprolactone Nanofibrillar Bundles to Control Cell‐Mediated Collagen Deposition in Engineered Cartilage

open access: yesAdvanced Materials, EarlyView.
Melt electrofibrillation (MEF) enables the fabrication of nanofibrillar PCL scaffolds with defined architectures that guide cellular alignment and retention during cartilage tissue engineering. Unlike conventional melt electrowriting, MEF consistently directs collagen type II‐rich extracellular matrix organization, providing a tunable platform to ...
Alba Pueyo Moliner   +10 more
wiley   +1 more source

Overhauling Line Design for Rail Transit AC Traction Motor

open access: yes机车电传动, 2013
In view of the fact that new EMUs trains, high power locomotives and metro vehicles in our country all adopt ac traction motor as power, developing modern AC traction motor overhauling line, this paper elaborated the technical flow of AC traction motor ...
LV Hua-qiang   +4 more
doaj  

Bond Graph Based Stability Analysis of a Railway Traction System [PDF]

open access: yes, 2005
This paper emphasises the interest of the Bond Graph approach for analysis and system design of heterogeneous and multi-field devices. In particular, the local stability analysis of non linear systems can be directly derived from the linearised Causal ...
Sareni, Bruno   +3 more
core  

Adsorbent Materials for Hydrocarbons Removal by Geopolymerization of Halloysite Clay Nanotubes Filled Within Chitosan Matrix

open access: yesAdvanced Materials Interfaces, EarlyView.
Alkaline activation of halloysite clay nanotubes embedded in a chitosan matrix converts bionanocomposite films into porous geopolymeric materials with enhanced adsorption capacity toward hydrocarbons in both vapor and aqueous phases. The improved adsorption performance was demonstrated by the efficient capture of dodecane vapors and phenol from water ...
Alessandro Lo Bianco   +6 more
wiley   +1 more source

Analysis of Influence Factors on Torque Control for Asynchronous Machine in Rail Transit Traction System

open access: yesKongzhi Yu Xinxi Jishu, 2018
The accuracy of torque control determines the power output quality and passenger comfort of rail transit vehicles. It studies the problem of torque control precision of traction motor from difference perspective including PWM control of traction system ...
YANG Liangchong
doaj  

Application of permanent magnet synchronous direct-drive traction system on Xuzhou metro line 1

open access: yes机车电传动, 2022
Metro trains have the advantages of high starting acceleration, high operating speed, punctuality and large carrying capacity, but energy consumption is also an important issue that needs close attention in metro operation.
ZENG Yun   +3 more
doaj  

On‐Skin Wireless Vibratory Interfaces by Stretchable Multilayer Circuits

open access: yesAdvanced Materials Interfaces, EarlyView.
A battery‐free, stretchable wireless vibratory interface is developed through printable liquid‐metal‐based multilayer circuits. The soft device integrates wireless power reception, signal modulation, and vibrotactile actuation within a compliant platform.
Jiawei Liu   +10 more
wiley   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

open access: yesAdvanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang   +8 more
wiley   +1 more source

Research on Design of 3M3T Metro Vehicle PermanentMagnet Traction System Characteristics

open access: yes机车电传动, 2015
3M3T metro vehicle of permanent magnet traction system was introduced, and compared with 4M2T metro vehicleof asynchronous motor traction system, the comparisons in train performance parameters showed 3M3T permanent magnet tractionsystem could wholly ...
XIAO Hua   +3 more
doaj  

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