Results 111 to 120 of about 59,954 (356)

Design principles of permanent magnet dual-memory machines [PDF]

, 2012
The permanent magnet (PM) dual-memory machine incorporates the concept of PM memory machines and PM hybrid machines, hence offering the flexible flux-tuning and flux-mnemonic function.
Chau, KT, LI, F, Liu, C, ZHANG, Z
core   +1 more source

Microsphere Autolithography—A Scalable Approach for Arbitrary Patterning of Dielectric Spheres

Advanced Functional Materials, EarlyView.
MicroSphere Autolithography (µSAL) enables scalable fabrication of patchy particles with customizable surface motifs. Focusing light through dielectric microspheres creates well defined, tunable patches via a conformal poly(dopamine) photoresist. Nearly arbitrary surface patterns can be achieved, with the resolution set by the index contrast between ...
Elliott D. Kunkel, Alec G. Burnett, Katherine E. Scheiber, Hans D. Robinson   +3 more
wiley   +1 more source

Design and Optimization of Permanent Magnet Flux-Switching Generator Arrangement Spoke by Taguchi Method for Direct-Drive Wind Turbines [PDF]

AUT Journal of Electrical Engineering
Due to the unique structure of Permanent Magnet Flux Switching Generators (PMFSG), which involves the interaction of permanent stator magnets and rotor teeth, the generated cogging torque is higher compared to that of other permanent magnet machines ...
Pouria Nadri, Mohammad Reza Besmi
doaj   +1 more source

A back to back multilevel converter for driving low inductance brushless AC machines [PDF]

, 2007
Traditionally, multilevel converters are utilised in medium voltage applications, allowing the DC-link voltage to exceed the switch maximum blocking voltage.
Bingham, Chris, Foster, M. P., Minshull, S., Stone, D. A.   +3 more
core   +1 more source

Scaling laws for synchronous permanent magnet machines

2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER), 2015
This paper defines the scaling laws for synchronous permanent magnet machines which include three separate procedures: rewinding, axial scaling, radial scaling. The derivation of scaling relations is based on the requirement that the magnetic fields in the scaled model should be the exact images of the fields in the referent model.
Stipetić, Stjepan, Žarko, Damir, Popescu, Mircea   +2 more
openaire   +2 more sources

‘Oxygen Bound to Magnesium’ as High Voltage Redox Center Causes Sloping of the Potential Profile in Mg‐Doped Layered Oxides for Na‐Ion Batteries

Advanced Functional Materials, EarlyView.
Na‐ion batteries ‐ Impact of doping on the oxygen redox: The sloping potential of NaMg0.1Ni0.4Mn0.5O2 above 4.0 V is caused by a new redox center (arising from the ‘O bound to Mg’), having a higher potential but being more irreversible compared to the ‘O bound to Ni’.
Yongchun Li, Konstantin Köster, Katherine A. Mazzio, Yanan Sun, Annica I. Freytag, Deniz Wong, Christian Schulz, Götz Schuck, Volodymyr Baran, Alba San Jose Mendez, Marcin Zając, Payam Kaghazchi, Philipp Adelhelm   +12 more
wiley   +1 more source

Cogging Torque Reduction Techniques in Axial Flux Permanent Magnet Machines: A Review

Energies
Axial flux permanent magnet machines have garnered significant attention in recent years due to their numerous advantages in various applications, including electric vehicles, wind turbines, and robotics.
Franjo Pranjić, Peter Virtič
doaj   +1 more source

Towards Fully Additively-Manufactured Permanent Magnet Synchronous Machines: Opportunities and Challenges [PDF]

, 2019
With the growing interest in electrification and as hybrid and pure electric powertrains are adopted in more applications, electrical machine design is facing challenges in terms of meeting very demanding performance metrics for example high specific ...
EL-Refaie, Ayman M., Wu, Fan
core   +1 more source

Prediction of 3D High Frequency Eddy Current Loss in Rotor Magnets of SPM Machines [PDF]

, 2016
This paper proposes a computationally efficient method, for accurate prediction of 3-dimensional (3D) high frequency eddy current loss in the rotor magnets of surface mounted permanent magnet machines employing the imaging method.
Chen, L., Chin, R., Manolas, I., Nair, S.S., Svechkarenko, D., Wang, J.   +5 more
core   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

Advanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner, Joshua Schober, Pascal Dippell, Chantal Glatthaar, Smail Mekhilef, David Schäfer, Hannes Hergert, Marcus Rohnke, Matthias T. Elm, Bernd M. Smarsly   +9 more
wiley   +1 more source