Results 11 to 20 of about 25,846,284 (157)

STUDY OF L–H TRANSITION AND PEDESTAL WIDTH BASED ON TWO-FIELD BIFURCATION AND FIXED POINT CONCEPTS

open access: yesActa Polytechnica, 2015
The L–H transition in magnetic confinement plasmas is investigated on the basis of concepts of two-field bifurcation and fixed-point stability. A set of heat and particle transport equations with both neoclassical and anomalous effects included is used ...
Boonyarit Chatthong, Thawatchai Onjun
doaj   +1 more source

Generalization of the Heuristic Drift SOL model for finite collisionality and effect on flow shearing rate vs. interchange growth rate

open access: yesNuclear Materials and Energy, 2021
We generalize the low-gas-puff Heuristic Drift (HD) model of the power scrape-off layer width to take into account both the enhanced parallel confinement time in the SOL at high collisionality, due to enhanced thermal resistivity, and the increase of the
A.O. Brown, R.J. Goldston
doaj   +1 more source

Time-dependent probability density functions and information geometry of the low-to-high confinement transition in fusion plasma

open access: yesPhysical 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
doaj   +1 more source

Comparison of dynamical features between the fast H-L and the H-I-L transition for EAST RF-heated plasmas

open access: yes, 2022
In this paper, a comparison of dynamical features between the fast H-L and the H-I-L transition, which can be identified by the intermediate phase, or ‘I-phase’, has been made for radio-frequency (RF) heated deuterium plasmas in EAST.
Ti, Ang   +41 more
core   +1 more source

Spatio-temporal evolution of the L -> I -> H transition [PDF]

open access: yes, 2012
International audienceWe investigate the dynamics of the low(L) → high(H) transition using a time-dependent, one dimensional (in radius) model which self-consistently describes the time evolution of zonal flows (ZFs), mean flows (MFs ...
T. Estrada   +20 more
core   +1 more source

L-H transition studies in tritium and deuterium–tritium campaigns at JET with Be wall and W divertor

open access: yesNuclear Fusion, 2023
The recent deuterium–tritium campaign in JET-ILW (DTE2) has provided a unique opportunity to study the isotope dependence of the L-H power threshold in an ITER-like wall environment (Be wall and W divertor).
E.R. Solano   +86 more
doaj   +1 more source

Changing of Electrical Conductivity, Acidity Function Voltage of Potential Difference for Salicylic Acid and Substituted to Study Adsorption Mechanism on Alumina Surface and the Factors Affecting it [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2020
In this study and for the first time there are the use of the specific electrical conductivity, acidity function, difference potential for salicylic and acetyl salicylic acids (Aspirin) solution before and after adsorption to describe and elicit ...
Khaleel Al-Niemi
doaj   +1 more source

Geodesic acoustic mode evolution in L-mode approaching the L–H transition on JET

open access: yes, 2019
Geodesic acoustic modes (GAMs) may generate strong oscillations in the radial electric field and therefore are considered as a possible trigger mechanism for the L-H transition.
Solano, E R   +7 more
core   +2 more sources

Effect of Maternal or Formulated Transition Milk on the Health and Performance of Dairy Calves

open access: yesAnimals, 2023
The study aimed to evaluate the effect of maternal or formulated transition milk with colostrum powder on the performance and health of dairy calves. After receiving 12% of their birth weight in high-quality colostrum, 36 Holstein calves (17 males and 19
Ana Paula da Silva   +7 more
doaj   +1 more source

Transcription and Metabolic Profiling Analysis of Three Discolorations in a Day of Hibiscus mutabilis

open access: yesBiology, 2023
In this study, we used combined transcriptomics and metabolomics to analyze the H. mutabilis cultivar’s genetic and physiological mechanisms during three flower color transition periods (from white to pink, then from pink to red) within the span of one ...
Zhangshun Zhu   +5 more
doaj   +1 more source

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