Results 81 to 90 of about 82,588 (292)

Role of Intrinsic Electron Trapping in Negative Charging of Amorphous Alumina

Advanced Functional Materials, EarlyView.
Intrinsic electron trapping in amorphous Al2O3 is examined using hybrid‐DFT models spanning a wide density range. Both spontaneous and thermally activated trapping are identified, with pronounced spontaneous localization in dense, partly crystallized structures.
Jack W. Strand, Kaja H. Hiorth, David Gao, Valeri Afanas'ev, Jaakko Akola, Alexander L. Shluger   +5 more
wiley   +1 more source

Design and Development of a Hybrid Excited Claw Pole Synchronous Machine

, 2011
The paper presents a new contactless hybrid excited claw pole synchronous machine. The excitation field is produced by both NdFeB permanent magnets mounted on the rotor, and two fixed cods embedded within machine shields, and fed from a controlled DC ...
Cistelecan, Mihail V., Melcescu, Leonard M., Popescu, Mihail, Craiu, Ovidiu   +3 more
core  

Closed-loop, flux weakening control for hybrid excitation synchronous machines

, 2015
The paper presents a closed loop flux weakening controller for Hybrid Excitation Synchronous Machines. The control is achieved though regulation of the voltage amplitude and of the phase angle between voltage and current.
GIULII CAPPONI, Fabio, BOROCCI, GABRIELE, Gabriele Borocci, Fabio Giulii Capponi, Giulio De Donato, Federico Caricchi, CARICCHI, Federico Attilio, DE DONATO, Giulio   +7 more
core   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Hybrid excitation synchronous permanent magnets synchronous machines optimally designed for hybrid and full electrical vehicle

, 2011
International audienceIn this paper, the performances of a hybrid excitation flux switching permanent magnets synchronous machine (HEFSSM) that have been optimally designed for a hybrid electric vehicle (HEV) application are shown.
Gabsi, Mohamed, Hlioui, Sami, Lécrivain, Michel, Hoang, Emmanuel   +3 more
core   +3 more sources

Study of a Hybrid Excitation Synchronous Machine: Modeling and Experimental Validation

Mathematical and Computational Applications, 2019
This paper deals with a parallel hybrid excitation synchronous machine (HESM). First, an expanded literature review of hybrid/double excitation machines is provided.
Salim Asfirane, Sami Hlioui, Yacine Amara, Mohamed Gabsi   +3 more
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Analysis of an Axial Field Hybrid Excitation Synchronous Generator

Energies
An axial field hybrid excitation synchronous generator (AF-HESG) is proposed for an independent power supply system, and its electromagnetic performance is studied in this paper.
Junyue Yu, Shushu Zhu, Chuang Liu
doaj   +1 more source

Research on Operation Principle and Control of Novel Hybrid Excitation Bearingless Permanent Magnet Generator

Energies, 2016
Under the condition of load changing, the magnetic field of traditional permanent magnet generators (PMG) is hard to be adjusted, and the mechanical bearings are significantly worn.
Huangqiu Zhu, Yamin Hu
doaj   +1 more source

Design and Analysis of Partitioned-Stator Switched-Flux Dual-Excitation Machine for Hybrid Electric Vehicles [PDF]

, 2018
In this paper, an advanced partitioned-stator switched-flux dual-excitation (PS-SFDE) machine, which is highly suitable for hybrid electric vehicles (HEVs), is proposed.
Ching Chan, Lee, Ho Tin, Christopher Ho Tin Lee, Kwok Tong Chau, Christopher Lee, Tze Ching, LEE, CHT, Chan, Ching Chuen, Ching, TW, Ching, Tze Wood, Kwok Chau, Chau, KT, Tze Wood Ching, Ching Chuen Chan, Chau, Kwok Tong, Chan, CC   +15 more
core   +1 more source