Results 101 to 110 of about 15,722 (309)
n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz
Advanced Materials, EarlyView.Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis +19 more
wiley +1 more source
Alone Self-Excited Induction Generators [PDF]
, 2016 In recent years, some converter structures and analyzing methods for the voltage regulation of stand-alone self-excited induction generators (SEIGs) have been introduced.
Doser, TL, Kesler, S
core +2 more sources
Advanced Materials, EarlyView.We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park +11 more
wiley +1 more source
Electric Generators Fitted to Wind Turbine Systems: An Up-to-Date Comparative Study
, 2015 International audienceThis paper describes a comparative study allowing the selection of the most appropriate innovative structures for electrical machines for a wind turbine system. This study is based on an exhaustive review of the state of the art and
Benbouzid, Mohamed +3 more
core +1 more source
Advanced Materials Technologies, EarlyView.This study formulated a 5Y‐PSZ zirconia paste for extrusion‐based additive manufacturing via direct ink writing, producing dense ceramic structures for dental applications. A colloidal approach with 47 vol% nanometric powder and tailored additives optimized rheology and printability.
Juliana de Freitas Gouveia Silva +5 more
wiley +1 more source
Power Quality Improvement Wind Energy System Using Cascaded Multilevel Inverter [PDF]
, 2013 In this paper, a wind energy conversion system based on a cascaded H-bridge multilevel inverter (CHBMLI) topology has been proposed to be used for the grid interface of large split winding alternators (SWAs).
A. S., Kumar, J.S., Sathiyanarayanan
core +2 more sources
Modeling and control of the doubly fed induction generator wind turbine
Simulation Modelling Practice and Theory, 2010 The present paper deals with the modeling of wind turbine generation systems. The model of a doubly fed induction generator, along with the corresponding converter, crow bar protection and electrical grid is described. The different level control strategies both in normal operation and under voltage dig conditions are discussed, including speed control,
Adrià Junyent-Ferré +4 more
openaire +3 more sources
Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes
Advanced Materials Technologies, EarlyView.We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard +7 more
wiley +1 more source
A Neural Network Controller For The Direct Power Control Of Doubly Fed Induction Generator
Eletrônica de Potência, 2013 In this paper a direct power control strategy for a doubly-fed induction generator by using an artificial neural network controller with the multilayer perceptron structure is presented.
Rodrigo Andreoli de Marchi +3 more
doaj +1 more source
A review of swarm-based metaheuristic optimization techniques and their application to doubly fed induction generator. [PDF]
Heliyon, 2022 Reddy K, Saha AK.
europepmc +1 more source