Results 31 to 40 of about 381,165 (296)
AIP Advances, 2023 This paper shows how to model the force density in electrical machines based on the field lines of the magnetic flux density. The force density is written as two vector components: the magnetic tension force and the magnetic pressure gradient force. This
G. Mörée, M. Leijon
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Energy Reports, 2021 The virtual equivalent line method for the axial-flux permanent magnet eddy current coupler is proposed in this paper to solve the problem of the difference in the length of the magnetic flux path between the inner radius and outer radius of the axial ...
Wenhui Li +4 more
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Magnetic Flux Concentration and Zonal Flows in Magnetorotational Instability Turbulence
, 2014 Accretion disks are likely threaded by external vertical magnetic flux, which enhances the level of turbulence via the magnetorotational instability (MRI).
Bai, Xue-Ning, Stone, James M.
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The quiet Sun's magnetic flux estimated from CaIIH bright inter-granular G-band structures [PDF]
, 2008 We determine the number density and area contribution of small-scale inter-granular calcium-II bright G-band structures in images of the quiet Sun as tracers of kilo-Gauss magnetic flux-concentrations.
B. Bovelet +24 more
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Magnetic flux density measurement in permanent magnet synchronous machines [PDF]
2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA), 2014 This paper describes two measurement techniques of the air gap flux density in a small permanent magnet synchronous machine. The first method is based of the harmonic analysis of the induced voltage in a search coil placed on the inner periphery of the stator, while the second relies on the analysis of the induced voltage in the stator windings ...
A. Saadoun, Y. Amirat
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Chromospheric magnetic field and density structure measurements using hard X-rays in a flaring coronal loop [PDF]
, 2008 <p><b>Aims:</b> A novel method of using hard X-rays as a diagnostic for chromospheric density and magnetic structures is developed to infer sub-arcsecond vertical variation of magnetic flux tube size and neutral gas density.</p>
A. L. MacKinnon +33 more
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Flux Loop Measurements of the Magnetic Flux Density in the CMS Magnet Yoke [PDF]
Journal of Superconductivity and Novel Magnetism, 2016 7 pages, 5 figures, presented at ISCM2016 - 5th International Conference on Superconductivity and Magnetism on April 28, 2016 at Fethiye ...
Klyukhin, V. I. +8 more
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MATEC Web of Conferences, 2017 Permanent magnetic-electromagnetic hybrid suspension system can effectively reduce energy consumption and heat release of the system, but also increase the difficulty of suspension control because of the existence of permanent magnets.
Chen Qiang +3 more
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Flux-Density Harmonics Analysis of Switched-Flux Permanent Magnet Machines [PDF]
IEEE Transactions on Magnetics, 2019 By developing a simple permeance-magnetomotive force (MMF) model of switched-flux permanent magnet (SFPM) machines, the air-gap flux density produced by both PMs and armature current can be derived, in which harmonics with the same order and rotational speed are called an effective harmonic pair (EHP).
Zhiqiang Zeng +6 more
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Observations of solar small-scale magnetic flux-sheet emergence
, 2019 Aims. Moreno-Insertis et al. (2018) recently discovered two types of flux emergence in their numerical simulations: magnetic loops and magnetic sheet emergence. Whereas magnetic loop emergence has been documented well in the last years, by utilising high-
Borrero, J. M. +3 more
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