Results 31 to 40 of about 736,721 (340)

Gribov's Confinement Scenario [PDF]

, 2000
I give a brief account of Gribov's scenario of supercritical charges in QCD. Gribov's equation for the Green function of light quarks and its derivation from the corresponding Dyson-Schwinger equation are described.
Carlo Ewerz, Dokshitzer, Ewerz, Fomin, Gribov, Gribov, Roberts   +6 more
core   +2 more sources

Experimental study of electron cyclotron heating assisted start-up on J-TEXT

Nuclear Fusion, 2023
Second harmonic X-mode (X2 mode) electron cyclotron heating (ECH) assisted start-up has been studied experimentally on the J-TEXT device to determine the minimum ECH power requirements to assist breakdown and develop a better physical description of the ...
Junli Zhang, Peter C de Vries, Kazunobu Nagasaki, Donghui Xia, Wei Jiang, Zhoujun Yang, Zhifeng Cheng, Li Gao, Xin Xu, Zhijiang Wang, Nengchao Wang, Yonghua Ding, Zhipeng Chen, Zhongyong Chen, Yuan Pan, J-TEXT Team   +15 more
doaj   +1 more source

IDP-PGFE: an interpretable disruption predictor based on physics-guided feature extraction

Nuclear Fusion, 2023
Disruption prediction has made rapid progress in recent years, especially in machine learning (ML)-based methods. If a disruption prediction model can be interpreted, it can tell why certain samples are classified as disruption precursors. This allows us
C. Shen, W. Zheng, Y. Ding, X. Ai, F. Xue, Y. Zhong, N. Wang, L. Gao, Z. Chen, Z. Yang, Z. Chen, Y. Pan, J-TEXT team   +12 more
doaj   +1 more source

Perturbative confinement [PDF]

Nuclear Physics B - Proceedings Supplements, 2003
Presented at QCD'02, Montpellier, July 2002.
openaire   +3 more sources

Confined types

Proceedings of the 14th ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications, 1999
Sharing and transfer of object references is difficult to control in object-oriented languages. Unconstrained sharing poses serious problems for writing secure components in object-oriented languages. In this paper, we present a set of inexpensive syntactic constraints that strengthen encapsulation in object-oriented programs and ...
Bokowski, Boris, Vitek, Jan
openaire   +2 more sources

WEST: Impact of wall conditions on impurity sources and core contamination for various plasma shapes*

Nuclear Materials and Energy
WEST’s unique characteristics with nearly all tungsten (W) PFCs offer an ideal platform to study plasma operations and plasma scenario development for long-pulsed, actively cooled, nearly all W-PFC tokamaks [1]. W erosion/redeposition of the PFCs and the
A. Grosjean, D.C. Donovan, P. Devynck, Fedorczak, A. Gallo, J. Gaspar, J. Gerardin, J.P. Gunn, C. Guillemaut, B. Guillermin, C.A. Johnson, S.R. Kosslow, P. Manas, S. Mazzi, D. Moiraf, P. Moreau, B. Putra, N. Rivals, E.A. Unterberg   +18 more
doaj   +1 more source

Disruption prediction for future tokamaks using parameter-based transfer learning

Communications Physics, 2023
Tokamaks are the most promising way for nuclear fusion reactors. Disruption in tokamaks is a violent event that terminates a confined plasma and causes unacceptable damage to the device.
Wei Zheng, Fengming Xue, Zhongyong Chen, Dalong Chen, Bihao Guo, Chengshuo Shen, Xinkun Ai, Nengchao Wang, Ming Zhang, Yonghua Ding, Zhipeng Chen, Zhoujun Yang, Biao Shen, Bingjia Xiao, Yuan Pan   +14 more
doaj   +1 more source

Calorimetry measurement for energy balance and energy distribution in WEST for L-mode plasmas

Nuclear Fusion
This paper presents the energy balance of 602 pulses from four different experimental campaigns for the WEST tokamak. Different magnetic configurations have been studied, with lower single null (LSN) and upper single null (USN) configuration with ...
J. Gaspar, J. Gerardin, Y. Corre, J. Daumas, N. Fedorczak, V. Lamaison, C. Bourdelle, G. Ciraolo, A. Ekedahl, A. Gallo, N. Rivals, E. Tsitrone, the WEST Team   +12 more
doaj   +1 more source

Identification of a double decay length (λqt) heat flux deposition shape with embedded thermal measurement and neural network

Nuclear Materials and Energy
The estimation of the heat flux density distribution profiles in tokamak devices is a very important research topic for edge plasma physics purposes and also to ensure the safety of the machine.
Y. Anquetin, J. Gaspar, Y. Corre, JL. Gardarein, J. Gerardin, P. Malard, F. Rigollet, Q. Tichit, E. Tsitrone   +8 more
doaj   +1 more source

From scalar to string confinement

, 2000
We outline a connection between scalar quark confinement, a phenomenologically successful concept heretofore lacking fundamental justification, and QCD. Although scalar confinement does not follow from QCD, there is an interesting and close relationship ...
A. B. Henriques, A. Barchielli, A. Barchielli, A. Barchielli, A. Chodos, A. Gara, A. Yu. Dubin, Collin Olson, D. Gromes, D. Gromes, E. Eichten, G. S. Bali, G. S. Bali, H. J. Schnitzer, H. J. Schnitzer, H. J. Schnitzer, I. Bars, Ken Williams, Lai-Him Chan, M. G. Olsson, M. G. Olsson, M. G. Olsson, M. G. Olsson, M. G. Olsson, M. Ida, M. S. Child, N. Brambilla, N. Brambilla, N. Brambilla, N. Brambilla, N. Isgur, R. E. Langer, Siniša Veseli, Steve Jacobs, T. J. Allen, Theodore J. Allen, V. L. Morgunov, W. Buchmüller   +37 more
core   +1 more source