Results 11 to 20 of about 320,868 (280)

General modeling of the windings for multi-phase ac machines [PDF]

open access: yes, 2010
This paper, which deals with the winding modeling of ac multi-phase machines with a regular distribution of the stator slots, details an original matrix modeling of the stator winding.
CHARPENTIER, Jean-Frederic   +2 more
core   +5 more sources

DEVICES FOR MEASURING THE NUMBER OF TRANSFORMER COILS

open access: yesИзмерение, мониторинг, управление, контроль, 2023
Background. In the process of manufacturing transformers, many operations are performed to control technological operations, such as matching the size of the winding wire, its tension, winding density, coil dimensions, location and correctness of ...
Alexey I. Nefediev   +2 more
doaj   +1 more source

‘Wind, Wind, Wind, Always Winding Am I’: Dickens’s Metafictional Clockwork

open access: yesThe Review of English Studies, 2022
Abstract This article considers the importance of timepieces and clockwork to Dickens’s conception of composition. Whilst the many clocks and watches that saturate his writing have often been read as indicative of an interest in time, the present study considers what the materiality of timepieces—namely, their markets and mechanisms ...
openaire   +1 more source

Joint Entanglement of Topology and Polarization Enables Error-Protected Quantum Registers [PDF]

open access: yes, 2018
Linear-optical systems can implement photonic quantum walks that simulate systems with nontrivial topological properties. Here, such photonic walks are used to jointly entangle polarization and winding number.
Osawa, Shuto   +2 more
core   +2 more sources

Wind Winding Down [PDF]

open access: yesScience, 2011
Climate Science Increasing concentrations of greenhouse gases in the atmosphere, emitted by human activities, have caused Earth's climate to warm. Climate warming has been linked to a host of other environmental changes, one of the most evident being an increase in the amount of water present ...
openaire   +1 more source

Wind Waves [PDF]

open access: yes, 2018
Wind-generated waves dominate sea surface motions for periods shorter than 300 seconds. Waves are of interest for many applications ranging from navigation safety to ocean and coastal engineering. Waves also define air-sea fluxes and have important interactions with surface currents, upper ocean turbulence, and sea ice.
Ardhuin, Fabrice, Orfila, Alejandro
openaire   +2 more sources

Methods for determining the scattering of transformer windings individually

open access: yesVestnik MGTU, 2019
The total leakage reactance of the transformer with concentric cylindrical windings depends on the thickness of the coils and the gap between them.
Popov I. P.
doaj   +1 more source

Machine Learning Topological Invariants with Neural Networks [PDF]

open access: yes, 2018
In this Letter we supervisedly train neural networks to distinguish different topological phases in the context of topological band insulators. After training with Hamiltonians of one-dimensional insulators with chiral symmetry, the neural network can ...
Shen, Huitao, Zhai, Hui, Zhang, Pengfei
core   +4 more sources

Modelling axial vibration in windings of power transformers

open access: yesOpen Physics, 2017
This paper describes the method of homogenization of material properties applied to windings used in power transformers. Exemplary results of natural modes of vibrations obtained by means of finite elements method are also included.
Witczak Pawel, Swiatkowski Michal
doaj   +1 more source

O(4) texture with a cosmological constant [PDF]

open access: yes, 2002
We investigate O(4) textures in a background with a positive cosmological constant. We find static solutions which co-move with the expanding background. There exists a solution in which the scalar field is regular at the horizon.
A. Cohen   +22 more
core   +1 more source

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