Results 71 to 80 of about 1,047,530 (303)

Real-time control of tearing modes using a line-of-sight electron cyclotron emission diagnostic

, 2010
The stability and performance of tokamak plasmas are limited by instabilities such as neoclassical tearing modes. This paper reports on an experimental proof of principle of a feedback control approach for real-time, autonomous suppression and ...
Thoen, DJ, de Maar, M.R., Steinbuch, M Maarten, P W J M Nuij, Westerhof, E., Oosterbeek, JW Hans, Thoen, D.J., Hennen, B.A., Westerhof, E, D J Thoen, Steinbuch, D., Hennen, BA Bart, M R de Baar, TEXTOR, Team., Bongers, W. A., M Steinbuch, Nuij, PWJM Pieter, M.R. de Baar, E Westerhof, J W Oosterbeek, W A Bongers, Oosterbeek, J. W., Bongers, W.A., Bongers, WA, Bürger, A, Baar, MR Marco de, Thoen, D. J., Steinbuch, M.; id_orcid, Steinbuch, M., Nuij, Pwjm, B A Hennen, A Bürger, null null, Bürger, A., Nuij, P.W.J.M., Baar, de, M.R., Oosterbeek, J.W., Thoen, A.   +37 more
core   +1 more source

Designing a validation experiment for radio frequency condensation

Nuclear Fusion
Theoretical studies have suggested that nonlinear effects can lead to ‘radio frequency (RF) condensation’, where an initially broad current profile can coalesce in islands when they reach sufficient width.
Lanke Fu, E. Litvinova Mitra, R. Nies, A.H. Reiman, M. Austin, L. Bardoczi, M. Brookman, Xi Chen, W. Choi, N.J. Fisch, Q. Hu, A. Hyatt, E. Jung, R. La Haye, N.C. Logan, M. Maraschek, J.J. McClenaghan, E. Strait, A. Welander, J. Yang, the ASDEX Upgrade Team   +20 more
doaj   +1 more source

Forecasting electron cyclotron current drive stabilization of neoclassical tearing modes in ITER

EPJ Web of Conferences, 2017
The ITER baseline design relies on ECCD to stabilize confinementdegrading disruptive NTMs [1]. However, the EC power required will take a toll on the fusion gain Q.
La Haye Robert J.
doaj   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Characteristics of disruptions observed in the initial operation phase of JT-60SA

Nuclear Fusion
Disruption database in the JT-60SA first plasma operation period has been constructed. The disruptions have been divided into three categories based on their characteristics, and the characteristics of each category have been discussed. The most commonly
T. Yokoyama, S. Inoue, S. Kojima, T. Wakatsuki, H. Urano, R. Sano, Y. Ohtani, S. Sumida, T. Nakano, M. Takechi, T. Szepesi, M. Yoshida, the JT-60SA Integrated Project Team   +12 more
doaj   +1 more source

Impact of Micro-Scale Stochastic Zonal Flows on the Macro-Scale Visco-Resistive Magnetohydrodynamic Modes

Mathematics, 2020
A model is developed to simulate micro-scale turbulence driven Zonal Flows (ZFs), and their impact on the Magnetohydrodynamic (MHD) tearing and kink modes is examined.
Sara Moradi, Anantanarayanan Thyagaraja
doaj   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

FEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux, Christian Lévêque, Fodil Azzaz, Marion Sangiardi, Sarosh R Irani, Michael Seagar, Jacques Fantini, Oussama El Far   +7 more
wiley   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

FEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Stability of Coupled Tearing and Twisting Modes in Tokamaks

, 1994
A dispersion relation is derived for resistive modes of arbitrary parity in a tokamak plasma. At low mode amplitude, tearing and twisting modes which have nonideal MHD behavior at only one rational surface at a time in the plasma are decoupled via ...
Fitzpatrick, R.
core   +1 more source

Hall current effects on tearing modes in rotating reverse field plasmas [PDF]

, 1980
It has been experimentally observed for some time that certain tearing modes in plasmas may be suppressed if the plasma rotates in a preferred direction.
Grossmann, William, Kress, Michael, Kappraff, Jay   +2 more
core   +1 more source