Results 1 to 10 of about 694,012 (248)
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
doaj +2 more sources
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
doaj +1 more source
L–H transition threshold studies in helium plasmas at JET [PDF]
Nuclear Fusion, 2021 We present a study of the power threshold for L–H transitions (PLH) in almost pure helium plasmas, obtained in recent experiments at JET with an ITER-like wall (Be wall and W divertor). The most notable new result is that the density at which PLH is minimum, ${\bar{n}}_{\text{e},\mathrm{min}}$, is considerably higher for helium than for deuterium and ...
E.R. Solano +34 more
openaire +1 more source
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
doaj +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
doaj +1 more source
Dynamics of stimulated L → H transitions [PDF]
Physics of Plasmas, 2013 We report on model studies of stimulated L → H transitions [K. Miki et al., Phys. Rev. Lett. 110, 195002 (2013)]. These studies use a reduced mesoscale model. Model studies reveal that L → H transition can be triggered by particle injection into a subcritical state (i.e., P<PThresh). Particle injection changes edge mean flow shear via changes of
Miki, K +5 more
openaire +3 more sources
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
doaj +1 more source
Journal of Dairy Science, 2022 : The effects of postpartum milking strategy on plasma mineral concentrations, blood β-hydroxybutyrate (BHB) concentration, and colostrum, transition milk, and first monthly test milk yield and composition were evaluated in 90 multiparous Jersey and ...
A. Valldecabres +4 more
doaj +1 more source
L-H transition in tokamaks and stellarators [PDF]
Plasma Physics and Controlled Fusion, 1994 H-mode theory is extended to include realistic effects such as charge-exchange momentum loss associated with neutral particles, and the magnetic stresses induced by the magnetic islands. Local critical plasma parameters for the on-set of the bifurcation are obtained and can be compared quantatively with experimental measurements.
Shaing, K. C. +2 more
openaire +1 more source
L-H transition studies on MAST: power threshold and heat flux analysis
Nuclear Fusion, 2023 Spherical tokamaks are known to differ from conventional tokamaks in a number of physics areas, but our understanding is limited by a comparative lack of experimental data.
Lena Howlett +4 more
doaj +1 more source