Search Results - (Author, Cooperation:D. Choi)

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  1. 1
    Staff View
    Publication Date:
    2018-03-06
    Publisher:
    The American Association for Cancer Research (AACR)
    Print ISSN:
    1078-0432
    Electronic ISSN:
    1557-3265
    Topics:
    Medicine
    Published by:
    http://www.aacr.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2018-03-29
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    1050-2947
    Electronic ISSN:
    1094-1622
    Topics:
    Physics
    Keywords:
    Quantum optics, physics of lasers, nonlinear optics, classical optics
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    C. R. Webster ; P. R. Mahaffy ; G. J. Flesch ; P. B. Niles ; J. H. Jones ; L. A. Leshin ; S. K. Atreya ; J. C. Stern ; L. E. Christensen ; T. Owen ; H. Franz ; R. O. Pepin ; A. Steele ; C. Achilles ; C. Agard ; J. A. Alves Verdasca ; R. Anderson ; D. Archer ; C. Armiens-Aparicio ; R. Arvidson ; E. Atlaskin ; A. Aubrey ; B. Baker ; M. Baker ; T. Balic-Zunic ; D. Baratoux ; J. Baroukh ; B. Barraclough ; K. Bean ; L. Beegle ; A. Behar ; J. Bell ; S. Bender ; M. Benna ; J. Bentz ; G. Berger ; J. Berger ; D. Berman ; D. Bish ; D. F. Blake ; J. J. Blanco Avalos ; D. Blaney ; J. Blank ; H. Blau ; L. Bleacher ; E. Boehm ; O. Botta ; S. Bottcher ; T. Boucher ; H. Bower ; N. Boyd ; B. Boynton ; E. Breves ; J. Bridges ; N. Bridges ; W. Brinckerhoff ; D. Brinza ; T. Bristow ; C. Brunet ; A. Brunner ; W. Brunner ; A. Buch ; M. Bullock ; S. Burmeister ; M. Cabane ; F. Calef ; J. Cameron ; J. Campbell ; B. Cantor ; M. Caplinger ; J. Caride Rodriguez ; M. Carmosino ; I. Carrasco Blazquez ; A. Charpentier ; S. Chipera ; D. Choi ; B. Clark ; S. Clegg ; T. Cleghorn ; E. Cloutis ; G. Cody ; P. Coll ; P. Conrad ; D. Coscia ; A. Cousin ; D. Cremers ; J. Crisp ; A. Cros ; F. Cucinotta ; C. d'Uston ; S. Davis ; M. Day ; M. de la Torre Juarez ; L. DeFlores ; D. DeLapp ; J. DeMarines ; D. DesMarais ; W. Dietrich ; R. Dingler ; C. Donny ; B. Downs ; D. Drake ; G. Dromart ; A. Dupont ; B. Duston ; J. Dworkin ; M. D. Dyar ; L. Edgar ; K. Edgett ; C. Edwards ; L. Edwards ; B. Ehlmann ; B. Ehresmann ; J. Eigenbrode ; B. Elliott ; H. Elliott ; R. Ewing ; C. Fabre ; A. Fairen ; K. Farley ; J. Farmer ; C. Fassett ; L. Favot ; D. Fay ; F. Fedosov ; J. Feldman ; S. Feldman ; M. Fisk ; M. Fitzgibbon ; M. Floyd ; L. Fluckiger ; O. Forni ; A. Fraeman ; R. Francis ; P. Francois ; C. Freissinet ; K. L. French ; J. Frydenvang ; A. Gaboriaud ; M. Gailhanou ; J. Garvin ; O. Gasnault ; C. Geffroy ; R. Gellert ; M. Genzer ; D. Glavin ; A. Godber ; F. Goesmann ; W. Goetz ; D. Golovin ; F. Gomez Gomez ; J. Gomez-Elvira ; B. Gondet ; S. Gordon ; S. Gorevan ; J. Grant ; J. Griffes ; D. Grinspoon ; J. Grotzinger ; P. Guillemot ; J. Guo ; S. Gupta ; S. Guzewich ; R. Haberle ; D. Halleaux ; B. Hallet ; V. Hamilton ; C. Hardgrove ; D. Harker ; D. Harpold ; A. M. Harri ; K. Harshman ; D. Hassler ; H. Haukka ; A. Hayes ; K. Herkenhoff ; P. Herrera ; S. Hettrich ; E. Heydari ; V. Hipkin ; T. Hoehler ; J. Hollingsworth ; J. Hudgins ; W. Huntress ; J. Hurowitz ; S. Hviid ; K. Iagnemma ; S. Indyk ; G. Israel ; R. Jackson ; S. Jacob ; B. Jakosky ; E. Jensen ; J. K. Jensen ; J. Johnson ; M. Johnson ; S. Johnstone ; A. Jones ; J. Joseph ; I. Jun ; L. Kah ; H. Kahanpaa ; M. Kahre ; N. Karpushkina ; W. Kasprzak ; J. Kauhanen ; L. Keely ; O. Kemppinen ; D. Keymeulen ; M. H. Kim ; K. Kinch ; P. King ; L. Kirkland ; G. Kocurek ; A. Koefoed ; J. Kohler ; O. Kortmann ; A. Kozyrev ; J. Krezoski ; D. Krysak ; R. Kuzmin ; J. L. Lacour ; V. Lafaille ; Y. Langevin ; N. Lanza ; J. Lasue ; S. Le Mouelic ; E. M. Lee ; Q. M. Lee ; D. Lees ; M. Lefavor ; M. Lemmon ; A. Lepinette Malvitte ; R. Leveille ; E. Lewin-Carpintier ; K. Lewis ; S. Li ; L. Lipkaman ; C. Little ; M. Litvak ; E. Lorigny ; G. Lugmair ; A. Lundberg ; E. Lyness ; M. Madsen ; J. Maki ; A. Malakhov ; C. Malespin ; M. Malin ; N. Mangold ; G. Manhes ; H. Manning ; G. Marchand ; M. Marin Jimenez ; C. Martin Garcia ; D. Martin ; M. Martin ; J. Martinez-Frias ; J. Martin-Soler ; F. J. Martin-Torres ; P. Mauchien ; S. Maurice ; A. McAdam ; E. McCartney ; T. McConnochie ; E. McCullough ; I. McEwan ; C. McKay ; S. McLennan ; S. McNair ; N. Melikechi ; P. Y. Meslin ; M. Meyer ; A. Mezzacappa ; H. Miller ; K. Miller ; R. Milliken ; D. Ming ; M. Minitti ; M. Mischna ; I. Mitrofanov ; J. Moersch ; M. Mokrousov ; A. Molina Jurado ; J. Moores ; L. Mora-Sotomayor ; J. M. Morookian ; R. Morris ; S. Morrison ; R. Mueller-Mellin ; J. P. Muller ; G. Munoz Caro ; M. Nachon ; S. Navarro Lopez ; R. Navarro-Gonzalez ; K. Nealson ; A. Nefian ; T. Nelson ; M. Newcombe ; C. Newman ; H. Newsom ; S. Nikiforov ; B. Nixon ; E. Noe Dobrea ; T. Nolan ; D. Oehler ; A. Ollila ; T. Olson ; M. A. de Pablo Hernandez ; A. Paillet ; E. Pallier ; M. Palucis ; T. Parker ; Y. Parot ; K. Patel ; M. Paton ; G. Paulsen ; A. Pavlov ; B. Pavri ; V. Peinado-Gonzalez ; L. Peret ; R. Perez ; G. Perrett ; J. Peterson ; C. Pilorget ; P. Pinet ; J. Pla-Garcia ; I. Plante ; F. Poitrasson ; J. Polkko ; R. Popa ; L. Posiolova ; A. Posner ; I. Pradler ; B. Prats ; V. Prokhorov ; S. W. Purdy ; E. Raaen ; L. Radziemski ; S. Rafkin ; M. Ramos ; E. Rampe ; F. Raulin ; M. Ravine ; G. Reitz ; N. Renno ; M. Rice ; M. Richardson ; F. Robert ; K. Robertson ; J. A. Rodriguez Manfredi ; J. J. Romeral-Planello ; S. Rowland ; D. Rubin ; M. Saccoccio ; A. Salamon ; J. Sandoval ; A. Sanin ; S. A. Sans Fuentes ; L. Saper ; P. Sarrazin ; V. Sautter ; H. Savijarvi ; J. Schieber ; M. Schmidt ; W. Schmidt ; D. Scholes ; M. Schoppers ; S. Schroder ; S. Schwenzer ; E. Sebastian Martinez ; A. Sengstacken ; R. Shterts ; K. Siebach ; T. Siili ; J. Simmonds ; J. B. Sirven ; S. Slavney ; R. Sletten ; M. Smith ; P. Sobron Sanchez ; N. Spanovich ; J. Spray ; S. Squyres ; K. Stack ; F. Stalport ; T. Stein ; N. Stewart ; S. L. Stipp ; K. Stoiber ; E. Stolper ; B. Sucharski ; R. Sullivan ; R. Summons ; D. Sumner ; V. Sun ; K. Supulver ; B. Sutter ; C. Szopa ; F. Tan ; C. Tate ; S. Teinturier ; I. ten Kate ; P. Thomas ; L. Thompson ; R. Tokar ; M. Toplis ; J. Torres Redondo ; M. Trainer ; A. Treiman ; V. Tretyakov ; R. Urqui-O'Callaghan ; J. Van Beek ; T. Van Beek ; S. VanBommel ; D. Vaniman ; A. Varenikov ; A. Vasavada ; P. Vasconcelos ; E. Vicenzi ; A. Vostrukhin ; M. Voytek ; M. Wadhwa ; J. Ward ; E. Weigle ; D. Wellington ; F. Westall ; R. C. Wiens ; M. B. Wilhelm ; A. Williams ; J. Williams ; R. Williams ; R. B. Williams ; M. Wilson ; R. Wimmer-Schweingruber ; M. Wolff ; M. Wong ; J. Wray ; M. Wu ; C. Yana ; A. Yen ; A. Yingst ; C. Zeitlin ; R. Zimdar ; M. P. Zorzano Mier
    American Association for the Advancement of Science (AAAS)
    Published 2013
    Staff View
    Publication Date:
    2013-07-23
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
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    Publication Date:
    2018-07-20
    Publisher:
    American Society of Hematology (ASH)
    Print ISSN:
    0006-4971
    Electronic ISSN:
    1528-0020
    Topics:
    Biology
    Medicine
    Keywords:
    Pediatric Hematology, Free Research Articles, Myeloid Neoplasia, Lymphoid Neoplasia, CME article, Clinical Trials and Observations
    Published by:
    http://www.hematology.org/

    Latest Papers from Table of Contents or Articles in Press
  5. 5
    Tittl, A., Leitis, A., Liu, M., Yesilkoy, F., Choi, D.-Y., Neshev, D. N., Kivshar, Y. S., Altug, H.
    American Association for the Advancement of Science (AAAS)
    Published 2018
    Staff View
    Publication Date:
    2018-06-08
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Geosciences
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Physics, Applied
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  6. 6
    Staff View
    Publication Date:
    2018-12-08
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    0031-9007
    Electronic ISSN:
    1079-7114
    Topics:
    Physics
    Keywords:
    Condensed Matter: Electronic Properties, etc.
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  7. 7
    Staff View
    Publication Date:
    2018-04-27
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Geosciences
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Neuroscience
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  8. 8
    Staff View
    Publication Date:
    2018-12-13
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    0031-9007
    Electronic ISSN:
    1079-7114
    Topics:
    Physics
    Keywords:
    Condensed Matter: Electronic Properties, etc.
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  9. 9
    Yoon, Y. S. ; Kang, W. N. ; Shin, H. S. ; Yom, S. S. ; Kim, T. W. ; Lee, Jong Yong ; Choi, D. J. ; Baek, S-S.

    [S.l.] : American Institute of Physics (AIP)
    Published 1993
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Ferroelectric BaTiO3 thin films were grown on Si(100) substrates at a temperature of 600 °C by in situ metalorganic chemical vapor deposition. X-ray diffraction and transmission electron microscopy results suggested that the 〈110〉 direction of the BaTiO3 preferred oriented films is parallel with the (100) direction of the Si substrates. Auger electron spectroscopy measurements showed that the compositions of the as-grown films were with a uniform distribution throughout the thickness of the films and with a sharp interface. These results indicate that the failure to obtain BaTiO3 epitaxial films was due to the formation of an interfacial amorphous layer prior to the creation of the films.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.353233

    Articles: DFG German National Licenses
  10. 10
    You, K.-I. ; Choi, D.-I. ; Kim, J.-Y.

    [S.l.] : American Institute of Physics (AIP)
    Published 1997
    Staff View
    ISSN:
    1089-7674
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The linearized flux-surface-averaged resistive magnetohydrodynamic equations, which include the electron diamagnetic drift and hot particle effects, are derived and studied numerically. The effect of electron diamagnetic drift on the trapped hot particle-driven resistive interchange mode is then investigated. It is shown that the effect can have a strong stabilization effect on the mode, similar to the conventional resistive interchange mode case. © 1997 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.872117

    Articles: DFG German National Licenses
  11. 11
    Yang, J. G. ; Choi, J. W. ; Choi, J. H. ; Chang, H. Y. ; Choi, D. I. ; Bengtson, Roger D.

    [S.l.] : American Institute of Physics (AIP)
    Published 1993
    Staff View
    ISSN:
    1089-7623
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Electrical Engineering, Measurement and Control Technology
    Notes:
    We demonstrate a large current power crowbar switch using thyristors without complex snubber circuits. Current sharing was obtained by selecting circuit elements for uniform impedance of parallel switches and varistors were used for voltage sharing between series elements.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1144347

    Articles: DFG German National Licenses
  12. 12
    Bruno, V. M. G. ; Goldberg, M. P. ; Dugan, L. L. ; Giffard, R. G. ; Choi, D. W.

    Oxford, UK : Blackwell Science Ltd
    Published 1994
    Staff View
    ISSN:
    1471-4159
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    Abstract: We examined the effect of moderate hypothermia (30°C) on neuronal injury in murine cortical cell cultures. Lowering the temperature during and after a period of oxygen-glucose deprivation reduced both the release of glutamate to the bathing medium and accompanying neuronal degeneration. Hypothermia immediately after brief exposure to high concentrations of NMDA or glutamate also reduced the resulting neuronal degeneration. This protective effect was not eliminated when MK-801 and 6-cyano-7-nitroquinoxaline-2,3-dione were added immediately after washout of the exogenously added excitotoxin, suggesting that it was mediated by actions additional to reduction of endogenous late glutamate release. Hypothermia applied only during exposure to NMDA or glutamate, whether brief or prolonged, did not reduce subsequent cytosolic calcium accumulation or neuronal degeneration, suggesting that the postsynaptic induction of NMDA receptor-mediated excitotoxicity is not sensitive to temperature reduction. However, hypothermia during prolonged S-α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid or kainate exposure did reduce neuronal degeneration.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1046/j.1471-4159.1994.63041398.x

    Articles: DFG German National Licenses
  13. 13
    Choi, D. D. ; Friedber, E. C. ; VandenBerg, S. R. ; Herman, M. M.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1977
    Staff View
    ISSN:
    1471-4159
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    Abstract— Non-histone chromosomal proteins (NHCP) from mouse brain at different stages of development and from adult liver and kidney of strain related mice were analyzed by SDS-polyacrylamide gel electrophoresis and were compared with the mouse teratoma, OTT-6050. The fetal, neonatal and adult brains were qualitatively similar in their NHCP profiles but had quantitative differences. The NHCP composition of the adult brain was clearly distinct from that of the liver and kidney and was dissimilar from that of the teratoma.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1471-4159.1977.tb10723.x

    Articles: DFG German National Licenses
  14. 14
    Choi, D. S. ; Han, J. H. ; Park, N. G. ; Kim, K. S. ; Whang, C. N.

    [S.l.] : American Institute of Physics (AIP)
    Published 1996
    Staff View
    ISSN:
    1089-7623
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Electrical Engineering, Measurement and Control Technology
    Notes:
    We have developed a new method for thermal desorption spectroscopy using field electron emission microscopy. To investigate the validity of our method, we have performed hydrogen adsorption experiments on the well known W(100) and W(110) surfaces and also on W(310). The thermal desorption spectra of these systems show that this method permits the study of adsorption on various single crystal plans of a metal with one sample. This method also gives information about the dipole direction of the adsorbates directly from the thermal desorption spectrum without additional measurement of the work function change induced by adsorbates. © 1996 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1147216

    Articles: DFG German National Licenses
  15. 15
    Choi, D. W. ; Powers, E. J. ; Bengtson, Roger D. ; Joyce, G. ; Brower, D. L. ; Luhmann, N. C. ; Peebles, W. A.

    [S.l.] : American Institute of Physics (AIP)
    Published 1986
    Staff View
    ISSN:
    1089-7623
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Electrical Engineering, Measurement and Control Technology
    Notes:
    The objective of this paper is to describe the principles of digital complex demodulation, and to summarize its advantages with respect to rapid time response and insensitivity to noise. These advantages are demonstrated by application to interferometry data collected on the Texas experimental tokamak (TEXT).
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1138762

    Articles: DFG German National Licenses
  16. 16
    Kim, J. Y. ; Horton, W. ; Choi, D. I. ; Migliuolo, S. ; Coppi, B.

    New York, NY : American Institute of Physics (AIP)
    Published 1992
    Staff View
    ISSN:
    1089-7666
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Using the local kinetic and fluid approaches, the effects of the anisotropies in the ion temperature and in the ion temperature gradient on the toroidal ion temperature gradient driven mode are investigated. A study of the effect of the increasing ion temperature relative to the fixed electron temperature in the peaked density limit is also made. Comparisons are given between the new toroidal results and the previous slab results.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.860428

    Articles: DFG German National Licenses
  17. 17
    Isichenko, M. B. ; Horton, W. ; Kim, D. E. ; Heo, E. G. ; Choi, D.-I.

    New York, NY : American Institute of Physics (AIP)
    Published 1992
    Staff View
    ISSN:
    1089-7666
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The scalings of the E×B turbulent diffusion coefficient D and the Kolmogorov entropy K with the potential amplitude φ˜ of the fluctuation are studied using the geometrical analysis of closed and extended particle orbits for several types of drift Hamiltonians. The high-amplitude scalings, D∝φ˜2 or φ˜0 and K∝log φ˜, are shown to arise from different forms of a periodic (four-wave) Hamiltonian φ˜(x,y,t), thereby explaining the controversy in earlier numerical results. For a quasirandom (six-wave) Hamiltonian numerical data for the diffusion D∝φ˜0.92±0.04 and the Kolmogorov entropy K∝φ˜0.56±0.17 are presented and compared with the percolation theory predictions Dp∝φ˜0.7, Kp∝φ˜0.5.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.860300

    Articles: DFG German National Licenses
  18. 18
    Kim, Jin-Yong ; Choi, D.-I. ; Van Dam, J. W. ; Horton, W.

    New York, NY : American Institute of Physics (AIP)
    Published 1991
    Staff View
    ISSN:
    1089-7666
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The stabilizing effects of various terms such as compressibility, diamagnetic drift, and parallel thermal conduction are investigated on the type of resistive ballooning modes whose driving force comes from the resistive region, which are known to be unstable in the high-beta second stability regime when analyzed in the incompressible limit. It is found that compressibility gives a significant stabilizing effect mainly through the perpendicular magnetic compression, which suggests the possibility of a second stable window for these resistive ballooning modes. The diamagnetic drift terms slightly reduce the growth rate in the incompressible limit, but, with finite compressibility, lead to fairly strong stabilization. The compression due to ion polarization, which becomes significant at large diamagnetic drift, contributes to this stabilization. On the other hand, parallel thermal conduction and perpendicular magnetic compression, which enter through the equation for temperature evolution, are shown to have a negligible effect on the stability of these modes.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.859744

    Articles: DFG German National Licenses
  19. 19
    Robertson, J. A. ; Horton, W. ; Choi, D. I.

    [S.l.] : American Institute of Physics (AIP)
    Published 1987
    Staff View
    ISSN:
    1089-7666
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Electron motion in a single electrostatic wave in a sheared magnetic field is shown to become stochastic in the presence of a second wave at an amplitude well below that obtained from the overlapping pendulum resonance approximation. The enhanced stochasticity occurs for low parallel velocity electrons for which the parallel trapping motion from eE(parallel)/m interacts strongly with the E×B trapping motion due to the presence of magnetic shear. The single-wave particle motion is given by a two-parameter family of one-degree-of-freedom Hamiltonians which bifurcate from a pendulum phase space to a topology with three chains of elliptic and hyperbolic fixed points separated in radius about the mode-rational surface. In the presence of a perturbing wave with a different helicity, electrons in the small parallel velocity regime become stochastic at an amplitude scaling as the fourth root of the wave potential. The results obtained for stochastic motion apply directly to the problem of the diffusion of electrons in drift waves.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.866520

    Articles: DFG German National Licenses
  20. 20
    Yang, J. G. ; Oh, Y. H. ; Choi, D. I. ; Kim, J. Y. ; Horton, W.

    New York, NY : American Institute of Physics (AIP)
    Published 1992
    Staff View
    ISSN:
    1089-7666
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The flux-surface-averaged linearized resistive magnetohydrodynamic (MHD) boundary-layer equations including the compressibility, diamagnetic drift, and neoclassical viscosity terms are derived in toroidal geometry. These equations describe the resistive layer dynamics of resistive MHD modes over the collisionality regime between the banana plateau and the Pfirsch–Schlüter. From the resulting equations, the effects of neoclassical viscosity on the stability of the tearing and resistive ballooning modes are investigated numerically. Also, a study is given for the problem of how the neoclassical resistive MHD mode is generated as the collisionality is reduced. It is shown that the neoclassical viscosity terms give a significant destabilizing effect for the tearing and resistive ballooning modes. This destabilization comes mainly from the reduction of the stabilizing effect of the parallel ion sound compression by the ion neoclassical viscosity. In the banana-plateau collisionality limit, where the compressibility is negligible, the dispersion relations of the tearing and resistive ballooning modes reduce to the same form, with the threshold value of the driving force given by Δc=0. On the other hand, with the finite neoclassical effect it is found that the neoclassical resistive MHD instability is generated in agreement with previous results. Furthermore, it is shown that this later instability can be generated in a wide range of the collisionality including near the Pfirsch–Schlüter regime as well as the banana-plateau regime, suggesting that this mode is a probable cause of anomalous transport.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.860264

    Articles: DFG German National Licenses