Results 11 to 20 of about 4,318,133 (264)
Stochastic Dynamics of Fusion Low-to-High Confinement Mode (L-H) Transition: Correlation and Causal Analyses Using Information Geometry [PDF]
Entropy, 2023 We investigate the stochastic dynamics of the prey–predator model of the Low-to-High confinement mode (L-H) transition in magnetically confined fusion plasmas. By considering stochastic noise in the turbulence and zonal flows as well as constant and time-
Eun-Jin Kim, Abhiram Anand Thiruthummal
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Time-dependent probability density functions and information geometry of the low-to-high confinement transition in fusion plasma [PDF]
Physical Review Research, 2020 We report a study of time-dependent probability density functions (PDFs) in the low-to-high confinement mode (L-H) transition by extending the previous prey-predator-type model [E. Kim and P. H. Diamond, Phys. Rev. Lett.
Eun-jin Kim, Rainer Hollerbach
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Determination of confinement regime boundaries via separatrix parameters on Alcator C-Mod based on a model for interchange-drift-Alfvén turbulence [PDF]
Nuclear FusionThe separatrix operational space (SepOS) model (Eich and Manz 2021 Nucl. Fusion 61 086017) is shown to predict the L–H transition, the L-mode density limit, and the ideal magnetohydrodynamic ballooning limit in terms of separatrix parameters for a wide ...
M.A. Miller +15 more
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H-mode transition in the TJ-II stellarator plasmas [PDF]
Philosophical Transactions of the Royal Society A, 2023 Since the first H-mode transitions were observed in TJ-II plasmas in 2008, an extensive experimental effort has been done aiming at better physics understanding of confinement transitions.
T. Estrada, C. Hidalgo
semanticscholar +1 more source
On the origin of the DIII-D L-H power threshold isotope effect
Nuclear Fusion, 2023 The increased low to high confinement mode (L to H-mode) power threshold $P_\mathrm{LH}$ in DIII-D low collisionality hydrogen plasmas (compared to deuterium) is shown to result from lower impurity (carbon) content, consistent with reduced (mass ...
K.J. Callahan +13 more
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Philosophical Transactions of the Royal Society A, 2023 The L-H transition power threshold (PLH) in favourable magnetic geometry (ion ∇B drift pointing towards X-point) is much lower than in the unfavourable magnetic geometry (ion ∇B drift pointing away from X-point) on multiple tokamaks.
Z. Yan +4 more
semanticscholar +1 more source
Nuclear Fusion, 2023 Based on a heuristic model of the scrape-off-layer (SOL) plasma dynamics, a new type of limit-cycle-oscillation (LCO) is shown to be possible in the SOL region.
J.Y. Kim, H.S. Han, L. Jung
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Inorganics, 2022 An organic–inorganic cation–anion manganese(II) tetrabromide compound with diprotonated 1-hydroxy-2-(pyridin-2-yl)-4,5,6,7-tetrahydrobenzimidazole, [H3L][MnBr4][H2O], has been synthesized and investigated.
Alexey S. Berezin +4 more
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Complexity, 2021 The spatiotemporal agglomeration of industries is the most prominent geographical feature of economic activities. Based on the analysis of the spatiotemporal distribution of China’s construction industry agglomeration, this paper analyzes the ...
Likun Zhao +3 more
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Overview of L- to H-mode transition experiments at ASDEX Upgrade
Plasma Physics and Controlled Fusion, 2022 This paper presents an overview of results from L–H transition experiments that were performed at ASDEX Upgrade (AUG) with the aim of identifying the underlying mechanisms leading to H-mode confinement.
U. Plank +10 more
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