Results 91 to 100 of about 404,814 (301)

On Physical Parameters of the Demonstration Stellarator-Reactor Operating in the Mode of Self-Supported Thermonuclear Reaction

East European Journal of Physics, 2012
With the use of a one-dimensional spatial-temporal numerical code under conditions of ambipolarity of neoclassical transport fluxes the regimes of the self-supported DT-fusion reaction in a reactor-stellarator are calculated.
Vasiliy Rudakov
doaj  

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., Zhao Y.P., Shan J.F., Zhang X.J., Ding B.J., Wang X.J., Wang M., Xu H.D., Qin C.M., Li M.H., Gong X.Z., Hu L.Q., Wan B.N., Song Y.T., Li J.G.   +14 more
doaj   +1 more source

Plasma Heating Induced by Tadpole-like Downflows in the Flaring Solar Corona. [PDF]

Innovation (Camb), 2021
Samanta T, Tian H, Chen B, Reeves KK, Cheung MCM, Vourlidas A, Banerjee D.   +6 more
europepmc   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Overdense plasma heating in Wendelstein 7-X(W7-X) stellarator

Results in Physics, 2017
High yield nuclear fusion operating in tokamak and stellarator need to heat plasma up to the required temperatures. As the confined plasma is overdensed, the electron cyclotron resonance heating (ECRH) is inefficient due to cut-off layer.
S. Adlparvar, S. Miraboutalebi, S.M. Sadat Kiai, L. Rajaee   +3 more
doaj   +1 more source

Combining particle acceleration and coronal heating via data-constrained calculations of nanoflares in coronal loops

, 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., Efthymiopoulos, C., Georgoulis, M. K., Gontikakis, C., Patsourakos, S.   +4 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

A megawatt-level 28 GHz heating system for the National Spherical Torus Experiment Upgrade

EPJ Web of Conferences, 2015
The National Spherical Torus Experiment Upgrade (NSTX-U) will operate at axial toroidal fields of ≤ 1 T and plasma currents, Ip ≤ 2 MA. The development of non-inductive (NI) plasmas is a major long-term research goal for NSTX-U.
Taylor G., Ellis R.A., Fredd E., Gerhardt S. P., Greenough N., Harvey R. W., Hosea J. C., Parker R., Poli F., Raman R., Shiraiwa S., Smirnov A. P., Terry D., Wallace G., Wukitch S.   +14 more
doaj   +1 more source

Two-phase radiative/conductive equilibrium in AGN and GBH

, 2000
We determine simple analytical conditions for combined radiative and thermal equilibrium between the X-ray emitting plasma and cold reprocessor in active galactic nuclei (AGN) and galactic black holes (GBH). These conditions determine the pressure at the
A. Różańska, Abramowicz, B. Czerny, Begelman, Begelman, Collin-Souffrin, Draine, Dullemond, Esin, Field, Haardt, Janiuk, Krolik, Krolik, Maciołek-Niedźwiecki, McKee, Meyer, Mineshige, Mushotzky, Nayakshin, Poutanen, Różańska, Shakura, Tanaka, Torricelli-Ciamponi, Witt, Zdziarski   +26 more
core   +4 more sources