Results 91 to 100 of about 76,140 (267)

Texoskeletons: Developing the Fundamental Technologies for Creating Intelligent Soft Robotic Clothing With Integrated 1D Sensors and Actuators

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Traditional wearable exoskeletons rely on rigid structures, which limit comfort, flexibility, and everyday usability. This work introduces the fundamental technologies to create the first soft, lightweight, intelligent textile‐based exoskeletons (Texoskeletons) built using 1D sensors and actuators.
Amy Lukomiak   +19 more
wiley   +1 more source

Exploring an Alternative to mRNA Vaccine Cold Chain Storage: MRNA‐Lipid Nanoparticle Stability When Dried in a Polymer Matrix

open access: yesAdvanced Functional Materials, EarlyView.
The nanostructure, size, and function of mRNA‐loaded lipid nanoparticles are evaluated before drying, within polymer microneedles, and after rehydration. The results reveal the polymer and LNP loadings required to recover nanostructure and preserve the delivery performance in dry‐state formulations.
Brendan P. Dyett   +19 more
wiley   +1 more source

Power Generation of Pure Sine Wave in Batteryless Solar System using Advanced Control

open access: yesPakistan Journal of Engineering & Technology, 2020
A novel technique for conversion of DC power to AC power is introduced using solar powered sine wave generation system is presented. DC power extracted from solar system is made utilitarian for driving the BLDC (brushless DC) motor with constant speed ...
Muhammad Siddique   +5 more
doaj  

Dual‐Mode Magnetic Elastomer for On‐Demand Motion and Degradation

open access: yesAdvanced Functional Materials, EarlyView.
A dual‐mode magnetic elastomer is introduced, enabling DC field‐driven programmable actuation and AC field‐driven magnetothermal degradation. GHz‐range magnetic fields generate ultrafast heating of magnetic nanoparticles that activates cleavage of the silicone elastomer matrix.
Jieun Han   +13 more
wiley   +1 more source

Development Trend of AC Traction Motor

open access: yes机车电传动, 2011
Advantage and development of AC traction motor were introduced. Development tendency in future of several types of traction motors were detailed described on structure characters and material applications, and at the same time, analysis and viewpoints ...
苟军善, 侯康鹏
doaj  

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

Development of Three-phase Asynchronous Traction Motor CDJD113for 4 400 HP Shunting Locomotive

open access: yes机车电传动, 2014
Aimed at the Ministry of Railway issued AC traction motor design requirements for 4 400 HP AC drive shunting diesellocomotive, the company independently developed CDJD113 three-phase asynchronous traction motor was introduced, including its ...
ZHAO Xiao-qian, GUAN Feng
doaj  

Modeling of AC Losses in High-speed PMSM Windings: Methods, Challenges, and Prospects

open access: yesCES Transactions on Electrical Machines and Systems
High-speed permanent magnet synchronous motors (PMSMs) have recently been widely applied in various applications. However, due to the increased rotor speed and operating frequency increase, the winding AC losses rise substantially, posing risks to the ...
Kaiwei He   +3 more
doaj   +1 more source

Dual‐Salt Carbothermal Shock Strategy Enabling Ultrafast and Sustainable Regeneration of Spent LiFePO4 Cathode Materials

open access: yesAdvanced Functional Materials, EarlyView.
Lithium iron phosphate (LFP) accounts for over 50% of the global cathode market, underscoring the need for efficient recycling and regeneration. We propose a dual‐salt carbothermal shock (CTS) strategy using LiI and NaI to in situ repair Li vacancies.
Yanjuan Li   +7 more
wiley   +1 more source

Optimal voltage angle for maximum torque per voltage control of induction machine in deep field‐weakening region

open access: yesIET Power Electronics
This paper investigates the optimal stator voltage angle in a rotor flux‐oriented system of an induction machine drive, aiming to maximise machine torque while operating in a deep field weakening region.
Ondrej Lipcak
doaj   +1 more source

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