Results 71 to 80 of about 4,889,609 (256)
The Journal of Engineering, 2018 Resonance or harmonic amplification occurs when the frequency of the harmonics generated by the converter station is near the inherent resonance frequency of the substation.
Liu Helin, Wen Jun, Yu Shiyou, Li Jiaqi
doaj +1 more source
Living and Working Safely Around High-Voltage Power Lines. [PDF]
, 1998 High-voltage transmission lines can be just as safe as the electrical wiring in the homes--or just as dangerous. The crucial factor is ourselves: they must learn to behave safely around them.
United States. Bonneville Power Administration.
core +1 more source
Fabrication Routes for Ionic Conducting Fiber Strain Sensors
Advanced Engineering Materials, EarlyView.Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw +3 more
wiley +1 more source
IET Power ElectronicsThis paper introduces a full bridge high voltage gain resonant switched capacitor converter (SCC) providing soft switching conditions for all power semiconductors above and below the resonant frequencies.
Sajad Afshar Zarandi +2 more
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Research on characteristics of bidirectional CLLC DC–DC transformer used in DC microgrid
The Journal of Engineering, 2019 In the DC microgrid system, the energy storage system must have both high power density and high energy density, and it is difficult for a single type of energy storage device to meet this requirement.
Wen Chunxue +4 more
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Advanced Functional Materials, EarlyView.ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti +16 more
wiley +1 more source
Power-take-off topology comparison for a wave energy converter
The Journal of Engineering, 2019 Wave Energy Converters (WECs) generally use a Mechanical Power-Take-Off (MPTO) involving hydraulics or gearing to optimise the extraction of energy from the incoming waves before converting it into electrical energy via a high speed rotating generator ...
Stephen P. McDonald +3 more
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Strategies for increasing the operating frequency range of vibration energy harvesters: a review
, 2010 This paper reviews possible strategies to increase the operational frequency range of vibration-based micro-generators. Most vibration-based micro-generators are spring-mass-damper systems which generate maximum power when the resonant frequency of the ...
Beeby, Steve, Zhu, Dibin, Tudor, John
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Advanced 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
A Load‐Independent High‐Frequency Resonant DC‐DC Converter for LED Driver Applications
IET Power ElectronicsThis paper introduces a soft‐switching single‐switch step‐down LED driver. The switch operates under zero voltage switching condition, which eliminates switching losses as well as capacitive turn‐on losses.
Behzad Soleymani +2 more
doaj +1 more source