Results 121 to 130 of about 470,563 (307)

Model predictive control with adjustable switching frequency for induction motor drives based on three‐dimensional satisfaction space optimisation

open access: yesIET Electric Power Applications
This paper proposes a model predictive control strategy for induction motors driven by three‐level inverters, enabling effective switching frequency adjustment.
Bo Yang   +5 more
doaj   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

A generic converter for experimentation based power electronics learning [PDF]

open access: yes, 2010
This paper presents a low cost, modular, configurable and fully protected education tool based on a generic electronic converter to be used by students, providing them with skills regarding power electronics and converters, and enabling them to learn ...
Araújo, Rui Esteves   +3 more
core  

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Common‐Mode Voltage Analysis and Reduction Method for SiC‐Based Four‐Level Hybrid Clampled Converter

open access: yesIET Power Electronics
The hybrid clamped converter (HCC) is a novel high‐performance four‐level multilevel converter for medium‐voltage motor drives. However, the high common mode voltage (CMV) in motor drives will cause harmful shaft voltages and bearing currents, which ...
Sheng Yan   +4 more
doaj   +1 more source

Calorimetric efficiency determination of power electronic variable speed drives [PDF]

open access: yes, 2019
A calorimeter test bench for the efficiency and power loss determination of power electronic variable speed drives is presented. The balanced calorimetric setup with air as the cooling medium is proposed to test small electronic drives for AC motors in a
Berteyn, Arne   +4 more
core  

Modelling Ac induction drive in PSpice

open access: yes, 2007
Problems of modelling of AC induction drive in PSpice are analyzed. Mathematical model of the motor is referred as to system of electric and magnetic circuits, which are coupled magnetically and electrically. Two systems of equations with decomposed motor variables along x and y axis are used to develop model of induction motor in PSpice.
Rinkevičienė, Roma, Petrovas, Andrius
openaire   +2 more sources

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

The 13th Bielschowsky lecture: accommodation and convergence – ratios, linkages, styles and mental somersaults [PDF]

open access: yes, 2019
A relatively fixed relationship between convergence and accommodation appears to be fundamental to binocular vision and its disorders. The accommodative convergence to accommodation ratio (AC/A) has traditionally been considered a major explanatory ...
Horwood, Anna
core  

Selective and Precise Editing of Digital Polymers Through Parallel or Series Toehold‐Mediated Strand Displacement

open access: yesAdvanced Functional Materials, EarlyView.
A sequence‐encoded supramolecular construct containing two accessible toeholds is developed herein for enabling multiple editing operations. By introducing specific input strands, it is possible to selectively erase or rewrite digital content through parallel or series toehold‐mediated strand displacement (PTMSD or STMSD).
Jakub Ossowski   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy