Results 61 to 70 of about 17,378,713 (296)

Sizing and Energy Management of a Hybrid Locomotive Based on Flywheel and Accumulators [PDF]

open access: yes, 2009
The French National Railways Company (SNCF) is interested in the design of a hybrid locomotive based on various storage devices (accumulator, flywheel, and ultracapacitor) and fed by a diesel generator.
Jaafar, Amine   +5 more
core   +1 more source

Bottom‐Up Engineering of a Human Neuromuscular System for Modeling Activity‐Induced Remodeling, Metabolic Stress, and Endothelial‐Modulated Excitability

open access: yesAdvanced Materials, EarlyView.
Using a bottom‐up approach, we engineered a human neuromuscular microchip to investigate distinct adaptive responses to neural stimulation and metabolic stress. Further integration of endothelial cells revealed their critical role in modulating neuromuscular excitability, establishing a comprehensive neurovascular‐muscular model.
Jinchul Ahn   +17 more
wiley   +1 more source

Application of SiC Devices in Traction System of Urban Rail Vehicles

open access: yes机车电传动, 2020
The high frequency, high temperature and high voltage characteristics of SiC devices bring system application advantages to the design of urban rail traction system, but also bring some application challenges.
Hua LI   +4 more
doaj  

A Beat Frequency Suppression Control Method Based on a Second-order Generalized Integrator

open access: yes机车电传动, 2021
In rail transit traction systems, due to the use of single-phase recti fiers, the DC input voltage of the inverter contains a ripple component whose frequency is twice the frequency of the grid-side voltage, which will cause the torque and current of the 
Rong LIU, Ke CHEN, Tiangui RAO
doaj  

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

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

Integrated Bidirectional DC-DC Energy Storage Low-floor Trams Traction System

open access: yes机车电传动, 2016
The vehicle parameters and performance requirements of integrated bidirectional DC-DC energy storage low-floortrams traction system were introduced, and the traction system traction/braking characteristics, system composition, system matchingcontrol ...
Yuan Wenye   +4 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

3D‐Printed Corneal Substitutes: Materials, Fabrication, and Preclinical Progress

open access: yesAdvanced Materials Technologies, EarlyView.
Successful clinical translation of 3D‐printed corneal substitutes relies on the interplay between the bioink properties, cellular component, and the fabrication process. These factors influence the critical properties of the construct, including optical transparency, mechanical stability, suture retention, that ultimately govern long‐term stromal ...
Shadi Moshayedi   +4 more
wiley   +1 more source

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