P
P.W. Shi
Researcher at Dalian University of Technology
Publications - 49
Citations - 488
P.W. Shi is an academic researcher from Dalian University of Technology. The author has contributed to research in topics: Tokamak & Plasma. The author has an hindex of 11, co-authored 37 publications receiving 302 citations.
Papers
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Journal ArticleDOI
A novel multi-channel quadrature Doppler backward scattering reflectometer on the HL-2A tokamak
Zhongbing Shi,Wulu Zhong,Min Jiang,Z.C. Yang,Boyu Zhang,P.W. Shi,Wei Chen,Jie Wen,C. Y. Chen,Bingzhong Fu,Z. T. Liu,Xuantong Ding,Qingwei Yang,Xuru Duan +13 more
TL;DR: Preliminary results of Doppler spectra measured by the multi-channel DBS reflectometer systems are obtained and the plasma rotation and turbulence distribution during supersonic molecular beam injection are analyzed.
Journal ArticleDOI
Hybrid neural network for density limit disruption prediction and avoidance on J-TEXT tokamak
Wei Zheng,F.R. Hu,M. Zhang,Z.Y. Chen,X.Q. Zhao,X.L. Wang,P.W. Shi,X. L. Zhang,X.Q. Zhang,Yinan Zhou,Y N Wei,Yichang Pan,J-Text Team +12 more
TL;DR: Wang et al. as discussed by the authors developed an artificial neural network for the prediction of density limit disruptions on the J-TEXT tokamak, which was improved from a simple multi-layer design to a hybrid two-stage structure.
Journal ArticleDOI
Spatiotemporal characterization of zonal flows with multi-channel correlation Doppler reflectometers in the HL-2A Tokamak
Wulyu Zhong,Zhongbing Shi,Yang Xu,X.L. Zou,Xuru Duan,W. Chen,Min Jiang,Z.C. Yang,B. Y. Zhang,P.W. Shi,Z. T. Liu,Min Xu,X.M. Song,Jun Cheng,R. Ke,L. Nie,Z.Y. Cui,B.Z. Fu,X.T. Ding,J.Q. Dong,Yi Liu,Longwen Yan,Qingwei Yang,Yong Liu,Hl A Team +24 more
TL;DR: In this article, the oscillations of poloidal plasma flows induced by radially sheared zonal flows are investigated by newly developed correlation Doppler reflectometers in the HL-2A tokamak.
Journal ArticleDOI
Influence of m / n = 2/1 magnetic islands on perpendicular flows and turbulence in HL-2A Ohmic plasmas
Min Jiang,W.L. Zhong,Yang Xu,Zhongbing Shi,W. Chen,Xiaoquan Ji,X.T. Ding,Z.C. Yang,P.W. Shi,A.S. Liang,Jie Wen,Jianqiang Li,Y. Zhou,Y.G. Li,D.L. Yu,Yong Liu,Qingwei Yang +16 more
TL;DR: In this paper, the radial profiles of perpendicular flows in the presence of the magnetic island were firstly measured in the HL-2A tokamak by hopping the work frequency of the Doppler backward scattering reflectometer system along with a two-dimensional electron cyclotron emission imaging diagnostic identifying the island locations.
Journal ArticleDOI
Experimental observation of turbulence transition and a critical gradient threshold for trapped electron mode in tokamak plasmas
Wulyu Zhong,Zhongbing Shi,Zhoujun Yang,G.L. Xiao,Z.C. Yang,B. Y. Zhang,P.W. Shi,Huarong Du,X. M. Pan,R. B. Zhou,L. H. Wan,X.L. Zou,Min Xu,Xuru Duan,Yong Liu,Ge Zhuang,Hl A Team,J-Text Team +17 more
TL;DR: In this paper, an electrostatic turbulence with quasi-coherent characteristics in spectra of density fluctuations was observed by multi-channel microwave reflectometers in a large plasma region ( r / a ∼ 0.3 − 0.8).