Search Results - "Appel, L. C."

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  1. 1

    GParareal: a time-parallel ODE solver using Gaussian process emulation by Pentland, Kamran, Tamborrino, Massimiliano, Sullivan, T. J., Buchanan, James, Appel, L. C.

    Published in Statistics and computing (01-02-2023)
    “…Sequential numerical methods for integrating initial value problems (IVPs) can be prohibitively expensive when high numerical accuracy is required over the…”
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    Journal Article
  2. 2

    The HAGIS self-consistent nonlinear wave-particle interaction model by Pinches, S.D., Appel, L.C., Candy, J., Sharapov, S.E., Berk, H.L., Borba, D., Breizman, B.N., Hender, T.C., Hopcraft, K.I., Huysmans, G.T.A., Kerner, W.

    Published in Computer physics communications (01-06-1998)
    “…The problem of modelling the self-consistent interaction of an energetic particle ensemble with a wave spectrum specific to magnetically confined plasmas in a…”
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    Journal Article
  3. 3

    Validation of equilibrium tools on the COMPASS tokamak by Urban, J., Appel, L.C., Artaud, J.F., Faugeras, B., Havlicek, J., Komm, M., Lupelli, I., Peterka, M.

    Published in Fusion engineering and design (01-10-2015)
    “…•Three equilibrium codes—EFIT++, FREEBIE and VacTH—have been successfully set up and validated on COMPASS.•FREEBIE can predictively calculate the equilibrium…”
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    Journal Article
  4. 4

    Stochastic parareal: an application of probabilistic methods to time-parallelisation by Pentland, Kamran, Tamborrino, Massimiliano, Samaddar, D, Appel, L. C

    Published 28-01-2022
    “…Parareal is a well-studied algorithm for numerically integrating systems of time-dependent differential equations by parallelising the temporal domain. Given…”
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  5. 5

    L-H transition in the mega-amp spherical tokamak by Akers, R J, Counsell, G F, Sykes, A, Appel, L C, Arends, E R, Byrom, C, Carolan, P G, Conway, N J, Cunningham, G, Dnestrovskij, A, Dnestrovskij, Yu N, Field, A R, Fielding, S J, Gryaznevich, M, Helander, P, Kirk, A, Korsholm, S, Martin, R, Meyer, H, Nightingale, M P S, Roach, C M, Shevchenko, V, Tournianski, M, Walsh, M J, Warrick, C D

    Published in Physical review letters (21-01-2002)
    “…H-mode plasmas have been achieved on the MAST spherical tokamak at input power considerably higher than predicted by conventional threshold scalings. Following…”
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    Journal Article
  6. 6

    H-Mode operation in the START spherical tokamak by Sykes, A, Akers, RJ, Appel, LC, Carolan, PG, Connor, JW, Conway, NJ, Counsell, GF, Dnestrovskij, A, Dnestrovskij, YN, Gryaznevich, M, Helander, P, Nightingale, MP, Ribeiro, C, Roach, CM, Tournianski, M, Walsh, MJ, Wilson, HR

    Published in Physical review letters (17-01-2000)
    “…H-mode operation has been achieved in high current (I(p)>200 kA) plasmas in the START spherical tokamak for both neutral-beam-injection-heated and Ohmic…”
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    Journal Article
  7. 7
  8. 8

    GParareal: A time-parallel ODE solver using Gaussian process emulation by Pentland, Kamran, Tamborrino, Massimiliano, Sullivan, T. J, Buchanan, James, Appel, L. C

    Published 31-01-2022
    “…Sequential numerical methods for integrating initial value problems (IVPs) can be prohibitively expensive when high numerical accuracy is required over the…”
    Get full text
    Journal Article
  9. 9

    Validation of equilibrium tools on the COMPASS tokamak by Urban, J, Appel, L. C, Artaud, J. F, Faugeras, B, Havlicek, J, Komm, M, Lupelli, I, Peterka, M

    Published 05-12-2014
    “…Various MHD (magnetohydrodynamic) equilibrium tools, some of which being recently developed or considerably updated, are used on the COMPASS tokamak at IPP…”
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    Journal Article
  10. 10

    Model Data Fusion: developing Bayesian inversion to constrain equilibrium and mode structure by Hole, M. J, von Nessi, G, Bertram, J, Svensson, J, Appel, L. C, Blackwell, B. D, Dewar, R. L, Howard, J

    Published 16-02-2010
    “…Recently, a new probabilistic "data fusion" framework based on Bayesian principles has been developed on JET and W7-AS. The Bayesian analysis framework folds…”
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    Journal Article