Results 61 to 70 of about 63,312 (284)

Two-Dimensional Structure and Particle Pinch in Tokamak H Mode [PDF]

, 2006
Two-dimensional structures of the electrostatic potential, density, and flow velocity near the edge of a tokamak plasma are investigated. The model includes the nonlinearity in bulk-ion viscosity and turbulence-driven shear viscosity.
Kimitaka Itoh, Naohiro Kasuya
core   +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

Structure of the radial electric field and toroidal/poloidal flow in high temperature toroidal plasma [PDF]

, 2001
The structure of the radial electric field and toroidal/poloidal flow is discussed for the high temperature plasma in torodidal systems, tokamak and Heliotron type magnetic configurations.
CHS Group, Group CHS, Group JFT-2M, Group LHD, IDA Katsumi, JFT-2M Group, Katsumi IDA, LHD Group   +7 more
core  

On the extrapolation to ITER of discharges in present tokamaks [PDF]

, 2007
An expression for the extrapolated fusion gain G = Pfusion /5 Pheat (Pfusion being the total fusion power and Pheat the total heating power) of ITER in terms of the confinement improvement factor (H) and the normalised beta (betaN) is derived in this ...
, A.C.C. Sips, A.G. Peeters, C. Angioni, Cordey J.G., Greenwald M., JET team (presented by Cordey J.G.), Kamada Y., Litaudon X., Luce T.C., McDonald D.C., Peeters A.G., Peeters A.G., Petty C.C., Petty C.C., Shimada M., Sips A.C.C., Wolf R.C.   +17 more
core   +2 more sources

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Experimental observation and edge characteristics of EDA H-mode on the HL-3 tokamak

Nuclear Fusion
The enhanced ${D_\alpha }$ (EDA) H-mode features high energy confinement together with the absence of edge localized modes (ELMs) and impurity accumulation, making it highly attractive for fusion reactors. The EDA H-mode has been observed recently in the
Anshu Liang, Xiaolan Zou, Wulyu Zhong, Yu Zhou, Guoliang Xiao, Rui Ke, Wenping Guo, Shaobo Gong, Liang Liu, Tengfei Sun, Na Wu, Min Jiang, Yiren Zhu, Shiqin Wang, Guanqun Xue, Xin Yu, Jie Wen, Deliang Yu, Zhongbing Shi, Bo Li, Wei Chen, Xiaoquan Ji   +21 more
doaj   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Study of correlations between LOC/SOC transition, intrinsic toroidal rotation reversal and TEM/ITG bifurcation with different working gases in TCV

Nuclear Fusion, 2023
The effects of different working gases on the transition from linear ohmic confinement (LOC) regime to saturated ohmic confinement (SOC) regime and its relation to the intrinsic toroidal rotation reversal phenomenon were explored in the TCV tokamak.
F. Bagnato, B.P. Duval, O. Krutkin, A. Iantchenko, the TCV Team   +4 more
doaj   +1 more source

Self-consistent simulation of plasma scenarios for ITER using a combination of 1.5D transport codes and free-boundary equilibrium codes

, 2013
Self-consistent transport simulation of ITER scenarios is a very important tool for the exploration of the operational space and for scenario optimisation.
Albanese, R, Ambrosino, R, Artaud, J-F, Besseghir, K, Cavinato, M, Corrigan, G, Garcia, J, Garzotti, L, Gribov, Y, Imbeaux, F, Koechl, F, Labate, C V, Lister, J, Litaudon, X, Loarte, A, Maget, P, Mattei, M, McDonald, D, Nardon, E, Parail, V, Saibene, G, Sartori, R, Urban, J   +22 more
core   +1 more source

Robustness of predator-prey models for confinement regime transitions in fusion plasmas [PDF]

, 2013
Energy transport and confinement in tokamak fusion plasmas is usually determined by the coupled nonlinear interactions of small-scale drift turbulence and larger scale coherent nonlinear structures, such as zonal flows, together with free energy sources ...
H. Zhu, R. O. Dendy, S. C. Chapman, Schuster H. G.   +3 more
core   +3 more sources