Results 81 to 90 of about 3,748,790 (295)
, 2013 We model nanoflare heating of extrapolated active-region coronal loops via the acceleration of electrons and protons in Harris-type current sheets. The kinetic energy of the accelerated particles is estimated using semi-analytical and test-particle ...
Anastasiadis, A. +4 more
core +1 more source
Kakuyūgō kenkyū, 1984 炉心プラズマを核融合反応が持続する点火温度にまで加熱するためには, 高速中性粒子束あるいは高周波波動をプラズマに入射し, 中心部に伝送して, それが吸収され, プラズマのエネルギーとして蓄えられることが必要である。また, その運動量をプラズマ粒子に与えて非誘導駆動電流を発生し得れば, 定常トカマク炉の実現も想定される。これらのプラズマ加熱法及び電流駆動法の物理機構, 研究の概要について述べる。
Shigetoshi Tanaka +2 more
openaire +2 more sources
Plasma Heating During a Coronal Mass Ejection Observed by SOHO [PDF]
, 2011 We perform a time-dependent ionization analysis to constrain plasma heating requirements during a fast partial halo coronal mass ejection (CME) observed on 2000 June 28 by the Ultraviolet Coronagraph Spectrometer (UVCS) aboard the Solar and Heliospheric ...
N. Murphy, J. Raymond, K. Korreck
semanticscholar +1 more source
Le Journal de Physique Colloques, 1977 Various heating methods can be used in order to overcome the limitations of ohmic heating in low-β toroidal systems. Attention is directed to fast neutral beam injection (possibly supplemented by adiabatic compression, etc.) and to RF-heating methods based on the existence of resonances.
openaire +2 more sources
Design and operation of a load-tolerant ICRH system in Experimental Advanced Superconducting Tokamak
Nuclear FusionIon Cyclotron Resonance Heating (ICRH) has been a dependable tool for sturdy plasma heating with high RF power of several megawatts. However, a sudden increase in the reflected power during ICRH heating experiments is a problem that should be solved for ...
L.N. Liu +9 more
doaj +1 more source
Magnetosphere-Ionosphere Coupling Through E-region Turbulence 1: Energy Budget
, 2011 During periods of intense geomagnetic activity, strong electric fields and currents penetrate from the magnetosphere into high-latitude ionosphere where they dissipate energy, form electrojets, and excite plasma instabilities in the E-region ionosphere ...
Amm +70 more
core +1 more source
Investigation of two-dimensional radio-frequency sheath properties using a microscale fluid model
Nuclear FusionIn previous work (Kohno and Myra 2023 Comput. Phys. Commun. 291 108841), we developed a numerical scheme based on a two-dimensional microscale radio-frequency (RF) sheath model with periodically curved wall boundaries.
H. Kohno, J.R. Myra
doaj +1 more source
Solar transition region and coronal response to heating rate perturbations [PDF]
The solar transition region is in a dynamic state characterized by impulsively upflowing plasma and continually downflowing plasma. Using numerical simulations, the conjecture that the areas of downflowing plasma are simply the base regions of coronal ...
Mariska, John T.
core +1 more source
Recent progress of RF-dominated experiments on EAST
EPJ Web of Conferences, 2017 The research of EAST program is mostly focused on the development of high performance steady state scenario with ITER-like poloidal configuration and RF-dominated heating schemes.
Liu F.K. +14 more
doaj +1 more source
Application of Graphite Electrode Plasma Heating Technology in Continuous Casting. [PDF]
Materials (Basel), 2022 Wang Y +7 more
europepmc +1 more source