Results 61 to 70 of about 116,954 (322)

Novel Winding Design and Analysis of Brushless Wound Rotor Synchronous Machines

open access: yesIET Electric Power Applications
Synchronous machines are electric machines characterised by a rotating speed proportional to the AC supply and are independent of load. Traditional permanent magnet synchronous machines utilise rare earth minerals for rotor flux generation, posing ...
Ahsan Fayyaz   +3 more
doaj   +1 more source

Critical Review of Flywheel Energy Storage System

open access: yesEnergies, 2021
This review presents a detailed summary of the latest technologies used in flywheel energy storage systems (FESS). This paper covers the types of technologies and systems employed within FESS, the range of materials used in the production of FESS, and ...
Abdul Ghani Olabi   +3 more
doaj   +1 more source

Implementing SVPWM Technique to an Axial Flux Permanent Magnet Synchronous Motor Drive with Internal Model Current Controller [PDF]

open access: yes, 2010
This paper presents a study of axial flux permanent magnet synchronous motor (AFPMSM) drive system. An internal model control (IMC) strategy is introduced to control the AFPMSM drive through currents, leading to an extension of PI control with ...
Darba, Araz   +2 more
core   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Self-Organized Synchronization and Voltage Stability in Networks of Synchronous Machines

open access: yes, 2013
The integration of renewable energy sources in the course of the energy transition is accompanied by grid decentralization and fluctuating power feed-in characteristics. This raises new challenges for power system stability and design.
Friedrich, Rudolf   +3 more
core   +1 more source

Formalization and Correctness of the PALS Architectural Pattern for Distributed Real-Time Systems [PDF]

open access: yes, 2010
Many Distributed Real-Time Systems (DRTS), such as integrated modular avionics systems and distributed control systems in motor vehicles, are made up of a collection of components communicating asynchronously among themselves and with their environment
Meseguer, Jos??, Olveczky, Peter C.
core   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Vectorial Formalism of Polyphase Synchronous Machine With Permanents Magnets

open access: yesAceh International Journal of Science and Technology, 2013
- This paper presents a mathematical model that transforms the real machine to fictitious machines and our goal is to simulate these and see the behavior of these machines in load.
Abdelkrim Sellam   +6 more
doaj   +3 more sources

High-frequency issues using rotating voltage injections intended for position self-sensing [PDF]

open access: yes, 2013
The rotor position is required in many control schemes in electrical drives. Replacing position sensors by machine self-sensing estimators increases reliability and reduces cost. Solutions based on tracking magnetic anisotropies through the monitoring of
De Belie, Frederik   +3 more
core   +1 more source

Lipid Nanoparticles for the Delivery of CRISPR/Cas9 Machinery to Enable Site‐Specific Integration of CFTR and Mutation‐Agnostic Disease Rescue

open access: yesAdvanced Functional Materials, EarlyView.
Lipid nanoparticles (LNPs) are optimized to co‐deliver Cas9‐encoding messenger RNA (mRNA), a single guide RNA (sgRNA) targeting the endogenous cystic fibrosis transmembrane conductance regulator (CFTR) gene, and homologous linear double‐stranded donor DNA (ldsDNA) templates encoding CFTR.
Ruth A. Foley   +12 more
wiley   +1 more source

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