Results 61 to 70 of about 527 (251)

THE REVIEW OF THE CONDITION OF BRANCH OF TRANSFORMER MANUFACTURE AND TENDENCIES OF DEVELOPMENT OF THE DESIGN OF POWER TRANSFORMERS

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2018
Manufacturers and consumers of transformers rather conservatively concern all innovations in transformer manufacture since in power distributive transformers are inherent long term of the operation, essential cost and a purchasing cycle.
S. S. Kostinskiy
doaj   +1 more source

Superconducting transformers – Part I

open access: yesTransformers Magazine, 2016
Superconducting transformers using high current density High Temperature Superconductor (HTS) wire cooled with liquid nitrogen can be lighter and more efficient than conventional power transformers. This paper describes the 1 MVA 11/0.415 kV HTS transformer developed by a New Zealand - Australian team, featuring HTS Roebel cable in the 1.4 kA-rated low
Staines, Mike   +3 more
openaire   +2 more sources

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

open access: yesAdvanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez   +9 more
wiley   +1 more source

Electric current transformation by anisotropic electrically conductive medium

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2020
The authors consider the aspects of electric current distribution in electrically conductive anisotropic medium and establish how geometrical factors affect its longitudinal and transverse components.
Anatolii Аshcheulov   +3 more
doaj   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

open access: yesAdvanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng   +11 more
wiley   +1 more source

Tailored electron bunches with smooth current profiles for enhanced transformer ratios in beam-driven acceleration

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2015
Collinear high-gradient O(GV/m) beam-driven wakefield methods for charged-particle acceleration could be critical to the realization of compact, cost-efficient, accelerators, e.g., in support of TeV-scale lepton colliders or multiple-user free-electron ...
F. Lemery, P. Piot
doaj   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

open access: yesAdvanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam   +6 more
wiley   +1 more source

Coordination of mode switching control and SMES unit for low‐voltage ride‐through fulfillment of power electronic transformer

open access: yesEnergy Science & Engineering, 2022
Power electronic transformer (PET) should have a satisfying low‐voltage ride‐through (LVRT) ability to cope with different kinds and severities of voltage sags.
Lei Chen   +8 more
doaj   +1 more source

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

open access: yesAdvanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno   +16 more
wiley   +1 more source

Quantum Vision Transformers [PDF]

open access: yesQuantum
In this work, quantum transformers are designed and analysed in detail by extending the state-of-the-art classical transformer neural network architectures known to be very performant in natural language processing and image analysis.
El Amine Cherrat   +5 more
doaj   +1 more source

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