Results 31 to 40 of about 24,064 (137)

A Self‐Powered CNT–Si Photodetector with Tuneable Photocurrent

open access: yesAdvanced Electronic Materials, 2023
A photodetector with bias‐tuneable current is realized by adding a film of single‐walled carbon nanotubes (CNT), forming a CNT/Si3N4/Si capacitor, to a prefabricated Pt–Ti/Si3N4/Si metal–insulator–semiconductor (MIS) diode. Electrical characterization of
Aniello Pelella   +7 more
doaj   +1 more source

Design and Implementation of Single Stage SEPIC Integrated Parallel Ripple Cancellation Method for LED Lighting

open access: yesAdvances in Electrical and Computer Engineering, 2022
LED drivers when operating from a utility source with a diode bridge rectifier poses a higher output ripple which deserves a large capacitance. But, the higher value of capacitors, normally electrolytic, with lesser lifetime reduces the operating time.
MAKKAPATI, S., RAMALINGAM, S.
doaj   +1 more source

Solución del problema de localización de condensadores en circuitos de distribución primaria mediante algoritmo genético

open access: yesRevista Científica de Ingeniería Energética, 2011
Este trabajo está relacionado con el problema de la ubicación de condensadores para mejorar la eficiencia en la explotación de las redes logrando una disminución de las pérdidas técnicas.
Julio Rafael Gómez Sarduy
doaj  

Simultaneous Allocation of Multi-Type Distributed Generations and Capacitors Using Generic Analytical Expressions

open access: yesIEEE Access, 2019
This paper proposes a method for determining the optimal sites and sizes of multi-type distributed generations (DG) and capacitors for minimizing reactive power losses (RPL) in distribution systems.
Karar Mahmoud, Matti Lehtonen
doaj   +1 more source

Ageing characteristics and lifetime model of oil–paper insulation for oil‐immersed paper condenser bushing

open access: yesHigh Voltage, 2021
This study extensively investigated the ageing characteristics and lifetime model of oil–paper insulation for oil‐immersed paper condenser bushing. The accelerated thermal and electrothermal ageing experiments of oil‐immersed paper condenser bushing were
Sihang Gao, Lijun Yang, Tingjing Ke
doaj   +1 more source

REACTIVE POWER COMPENSATION IN ASYNCHRONOUS ELECTRIC DRIVES

open access: yesElectrical engineering & Electromechanics, 2013
A problem of calculating capacity of cosine capacitors for individual compensation of reactive power in asynchronous electric drives in stationary and transient operation modes is considered.
V.S. Malyar, I.A. Dobushovska
doaj  

Ultrathin, Breathable, Permeable, and Skin‐Adhesive Charge Storage Electronic Tattoos Based on Biopolymer Nanofibers and Carbon Nanotubes

open access: yesAdvanced Electronic Materials, 2023
Ultrathin, breathable, and skin‐compatible epidermal electronics are attractive for wearable and implantable healthcare and biomedical applications.
Shalik Ram Joshi   +3 more
doaj   +1 more source

Improving the dielectric properties of polypropylene for metallised film capacitors based on cyclic olefin copolymer blending

open access: yesIET Nanodielectrics
High conductivity loss and low breakdown strength of traditional polypropylene (PP) film in the high‐temperature environment are the key factors limiting the application of metallised film capacitors (MFCs).
Meng Xiao   +3 more
doaj   +1 more source

CaZn1/3Nb2/3O3-based dielectric ceramics for silver co-sintering applications [PDF]

open access: yesScience of Sintering, 2012
The Ca(Zn1/3Nb2/3)O3 (CZN) complex perovskite oxide has been studied for its attractive dielectric properties (εr=34, Qxf=15 890GHz, τf=-48 ppm.°C-1) for applications such as multilayer ceramics capacitors or hyperfrequency resonators.
Chaouchi A.   +3 more
doaj   +1 more source

Substituted Bi3.5Mg1.8Nb2.7O13.8 pyrochlores with transition metals (Zn, Ni and Cd): Doping mechanism, structure and electrical properties [PDF]

open access: yesProcessing and Application of Ceramics
The influence of transition metals (Zn, Cd and Ni) on bismuth magnesium niobate (Bi3.5Mg1.8Nb2.7O13.8, BMN) pyrochlores was investigated. Considering the difference in their ionic radii, Cd was postulated to substitute Mg at the eight-fold coordinated A ...
Tan Phei Yi   +8 more
doaj   +1 more source

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