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Showing 1 to 20 of 177 for “"Magnetic flux"”.

  1. Magnetic flux reconstruction methods for shaped tokamaks

    Tsui, Chi-WaMassachusetts Institute of Technology1994

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1994.

    mit Repository record

  2. Magnetic flux compression for high voltage pulse applications

    Hernandez Llambes, Juan CarlosTexas Tech University2004

    Helical Magnetic Flux Compression Generators (MFCG) are the most promising energy sources with respect to their current amplification and compactness. However, their intrinsic flux loss limits severely their performance and it is not yet well understood. All flux losses have a differing degree of …

    ttu Repository record

  3. Modeling and design of magnetic flux compression generators

    Klugman, Nicholas Edward.Massachusetts Institute of Technology2020

    The explosively-pumped magnetic flux compression generator (FCG) is a pulsed-power current amplifier powered by an explosion. This thesis surveys FCGs, demonstrating their general operation; develops a new magnetic-field-strength-based model for FCGs in the form of a generalized cylinder that more …

    mit Repository record

  4. Local imaging of magnetic flux in superconducting thin films

    Shapoval, TetyanaTechnische Universität Dresden

    Local studies of magnetic flux line (vortex) distribution in superconducting thin films and their pinning by natural and artificial defects have been performed using low-temperature magnetic force microscopy (LT-MFM). Taken a 100 nm thin NbN film as an example, the depinning of vortices from …

    qucosa-diss

  5. Magnetic flux measurement of superconducting qubits with Josephson inductors

    Lee, Janice C. (Janice Cheng-Yee), 1978-Massachusetts Institute of Technology2002

    Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.

    mit Repository record

  6. Understanding Magnetic Flux Leakage from Gouges and Dents Containing Gouges

    Chen, Jia Dian2012

    Magnetic flux leakage (MFL) is the most widely used non-destructive evaluation (NDE) technique for operating gas and oil transmission pipelines. The Queen’s Applied Magnetics Group (AMG) has been studying MFL signals from dents for the past 5 years, and recently began considering MFL signals from …

    queens Repository record

  7. Comparing Different Methods for Estimating Total Open Heliospheric Magnetic Flux

    Wallace, Samantha J.

    … discrepancies occur between the observed open magnetic flux (i.e., those based on spacecraft observations) and that determined from coronal models. One explanation for the source of these discrepancies is the magnetic fields in CMEs, which have yet to magnetically disconnect from the Sun. These …

    embry-riddle Repository record

  8. Magnetic Flux Flow and Fluctuation Effects in Thin Film Superconductors

    Escher, John StuartUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T22:38:40Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7114741.PDF: 2525444 bytes, checksum: ee8366003a488cf0eb3bbac8b1894ba1 (MD5) Previous issue date: 1970

    uiuc Repository record

  9. Magnetic flux flow and fluctuation effects in thim film superconductors

    Escher, John Stuart2011

    … as a function of transport current density, magnetic field, temperature, and degree of annealing. Results are interpreted in terms of the present understanding of the mixed state in thin films. Studies of vorteK guiding, the Hall angle in the mixed state, and ac versus dc measurement methods …

    uiuc Repository record

  10. Magnetic flux distributions along the armature of homopolar inductor machines

    Gemelos, Michael S.Polytechnic Institute of New York University1976

    uiuc Repository record

  11. Dynamics of the rise of magnetic flux tubes in stellar interiors

    Fournier, YoriUniversität Potsdam

    In sonnenähnlichen Sternen erhält ein Dynamo-Mechanismus die Magnetfelder. Der Babcock-Leighton-Dynamo beruht auf einem solchen Mechanismus und erfordert insbesondere die Existenz von magnetischen Flussröhren. Man nimmt an, dass magnetische Flussröhren am Boden der Konvetionszone entstehen und …

    potsdam-diss Repository record

  12. Precise radial velocities and simultaneous magnetic flux estimates from intensity spectra

    Lienhard, FlorianUniversity of Cambridge2023

    … the second part of my PhD, I have implemented a magnetic flux estimation technique built on MM-LSD. This extension is aimed to contribute to solving the problem (d) above. I modelled the Zeeman effect in intensity spectra for which it can be parameterised in a way suitable for the LSD approach. …

    cambridge Repository record

  13. Effect of debris-induced lift-off on magnetic flux leakage inspection results

    Valentine, Francisco Louis2019

    … potential to cause debris-induced lift-off in magnetic flux leakage inspection tools. A test apparatus was developed to qualitatively examine the effect of debris-induced lift-off.;The results of this research indicate that debris-induced lift-off has a detrimental effect on magnetic flux …

    wvu Repository record

  14. h/e magnetic flux modulation of the energy gap in nanotube quantum dots

    Coskun, Ulas Cosar2012

    … tubes are obtained as functions of the coaxial magnetic field, as well as of the perpendicular field. The maps for coaxial magnetic field show that a conductivity gap is induced as a function of the magnetic field, and the gap oscillates with a period of h/e, similar to that of Ajiki-Ando gap …

    uiuc Repository record

  15. Driven Magnetic Flux Lines in Type-II Superconductors: Nonequilibrium Steady States and Relaxation Properties

    Klongcheongsan, ThananartVirginia Tech2009

    … the nonequilibrium steady state of driven magnetic flux lines in type-II superconductors subject to strong point or columnar pinning centers and the aging dynamics of nonequilibrium relaxation process in the presence of weak point pinning centers. We employ a three-dimensional elastic line …

    vt Repository record

  16. Development of an isolated flyback converter employing boundary-mode operation and magnetic flux sensing feedback

    Kenia, Mayur V. (Mayur Vasant), 1981-Massachusetts Institute of Technology2004

    This thesis focuses on the marriage of magnetic-flux-sensing feedback and boundary-mode operation in a flyback converter to create a simple, small, low-cost, isolated, and tightly regulated power supply. Although each technique has been implemented before, the marriage of these two concepts is new. …

    mit Repository record

  17. Relation between Emergence of Twisted Magnetic Flux Bundle and Flare Activities in Active Regions on the Sun

    Ishii, Takako京都大学 (Kyoto University)2000

    kyoto Repository record

  18. Enhanced Magnetic Flux Leakage Analysis of the Distribution of Flux and The Effects of Velocity of Mild Steel Plates

    Pullen, Ashley LaurentUniversity of Wales Trinity Saint David2024

    … the velocity effects of a permanent magnet based magnetic flux leakage system. Both experimental and finite element analysis methods have been utilised to undertake a parametric study of the velocity effects on the induced flux and its distribution in plate thicknesses of 6mm through to 20mm thick …

    uwtsd Repository record

  19. A Method to Compute Three Dimensional Magnetospheric Equilibria with Dipole Tilt and its Application in Estimating Magnetic Flux Tube Volume

    Zheng, LihengRice University2011

    … arbitrary Earth's dipole tilt and interplanetary magnetic field. We also describe the algorithms of this new friction code that trace magnetic field lines, locate the neutral sheet, and identify the magnetopause In addition, we present a generalized theory for calculating magnetic flux tube volume …

    rice Repository record

  20. An investigation into high temperature superconducting flux pump technology with the circular type magnetic flux pump devices and YBaCuO films

    Wang, WeiUniversity of Cambridge2014

    … show promise for future applications such as magnetic resonance imaging (MRI) magnets, electrical machines, magnetic levitation trains, energy storage, etc. 2G HTS coils can be operated using either dc current or ac current. Several important issues have yet to be resolved, such as how to …

    cambridge Repository record

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