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29 results on '"Kong, D.F."'

2. Development of a compact torus injector system for central fuelling technology of EAST

Author

Zhao, Z.H., primary, Lan, T., additional, Kong, D.F., additional, Ye, Y., additional, Zhang, S.B., additional, Zhuang, G., additional, Zhang, X.H., additional, Hu, G.H., additional, Chen, C., additional, Wu, J., additional, Zhang, S., additional, Qi, M.B., additional, Li, C.H., additional, Yang, X.M., additional, Nie, L.Y., additional, Wen, F., additional, Zi, P.F., additional, Li, L., additional, Meng, F.W., additional, Li, B., additional, Dong, Q.L., additional, and Huang, Y.Q., additional

Published
2022
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4. Experiment and simulation of ELM in NBI heated plasma on EAST tokamak

Author

Geng, K.N., primary, Tang, T.F., additional, Kong, D.F., additional, Zhang, S.B., additional, Zhang, T., additional, Huang, C.B., additional, Wu, M.Q., additional, Jiang, D., additional, Lyu, B., additional, Wang, L., additional, Gao, W., additional, Liu, Z.X., additional, Liu, A.D., additional, Duan, Y.M., additional, Zhang, L., additional, Jie, Y.X., additional, Zang, Q., additional, Zhu, X., additional, Hao, B.L., additional, Wang, K., additional, Lin, X.D., additional, Huang, J.J., additional, Wan, Y.X., additional, and Gao, X., additional

Published
2021
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5. Power threshold and confinement of the I-mode in the EAST tokamak

Author

Liu, Y.J., primary, Liu, Z.X., additional, Liu, A.D., additional, Zhou, C., additional, Feng, X., additional, Yang, Y., additional, Zhang, T., additional, Xia, T.Y., additional, Liu, H.Q., additional, Wu, M.Q., additional, Zou, X.L., additional, Kong, D.F., additional, Li, H., additional, Xie, J.L., additional, Lan, T., additional, Mao, W.Z., additional, Zhang, S.B., additional, Ding, W.X., additional, Zhuang, G., additional, and Liu, W.D., additional

Published
2020
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7. Nonlinear simulation and energy analysis of the EAST coherent mode

Author

Huang, Y.Q., primary, Xia, T.Y., additional, Xu, X.Q., additional, Kong, D.F., additional, Wang, Y.M., additional, Ye, Y., additional, Qian, Z.H., additional, Zang, Q., additional, Wu, M.P., additional, Chu, Y.Q., additional, Liu, H.Q., additional, Gui, B., additional, Xiao, X.T., additional, and Zhang, D.Z., additional

Published
2020
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9. Recent advances in EAST physics experiments in support of steady-state operation for ITER and CFETR

Author

Wan, B.N., Liang, Y., Gong, X.Z., Xiang, N., Xu, G.S., Sun, Y., Wang, L., Qian, J.P., Liu, H.Q., Zeng, L., Zhang, L., Zhang, X.J., Ding, B.J., Zang, Q., Lyu, B., Garofalo, A.M., Ekedahl, A., Li, M.H., Ding, F., Ding, S.Y., Du, H.F., Kong, D.F., Yu, Y., Yang, Y., Luo, Z.P., Huang, J., Zhang, T., Zhang, Y., Li, G.Q., Xia, T.Y., Salewski, Mirko, Wan, B.N., Liang, Y., Gong, X.Z., Xiang, N., Xu, G.S., Sun, Y., Wang, L., Qian, J.P., Liu, H.Q., Zeng, L., Zhang, L., Zhang, X.J., Ding, B.J., Zang, Q., Lyu, B., Garofalo, A.M., Ekedahl, A., Li, M.H., Ding, F., Ding, S.Y., Du, H.F., Kong, D.F., Yu, Y., Yang, Y., Luo, Z.P., Huang, J., Zhang, T., Zhang, Y., Li, G.Q., Xia, T.Y., and Salewski, Mirko

Abstract

Since the last IAEA Fusion Energy Conference in 2016, the EAST physics experiments have been developed further in support of high-performance steady-state operation for ITER and CFETR. First demonstration of a >100 s time scale long-pulse steady-state scenario with a good plasma performance (H98(y2) ~ 1.1) and a good control of impurity and heat exhaust with the upper tungsten divertor has been achieved on EAST using the pure radio frequency (RF) power heating and current drive. The EAST operational domain has been significantly extended towards a more ITER and CFETR related high beta steady-state regime (βP ~ 2.5 and βN ~ 1.9 of using RF and NB and βP ~ 1.9 and βN ~ 1.5 of using pure RF). A large bootstrap current fraction up to 47% has been achieved with with q95 ~ 6.0–7.0. The interaction effect between the electron cyclotron resonant heating and two lower hybrid wave systems has been investigated systematically, and applied for the improvement of current drive efficiency and plasma confinement quality in the steady-state scenario development on EAST. Full edgelocalized mode (ELM) suppression using the n = 2 resonant magnetic perturbations has been achieved in ITER-like standard type-I ELMy H-mode plasmas with a range of the edge safety factor of q95 ≈ 3.2–3.7 on EAST. Reduction of the peak heat flux on the divertor was demonstrated using the active radiation feedback control. An increase in the total heating power and improvement of the plasma confinement are expected using a 0D model prediction for a higher bootstrap fraction. Towards a long-pulse, high bootstrap current fraction operation, a new lower ITER-like tungsten divertor with active water-cooling will be installed, together with further increase and improvement of heating and current drive capability.

Published
2019

10. I-mode investigation on the Experimental Advanced Superconducting Tokamak

Author

Feng, X., primary, Liu, A.D., additional, Zhou, C., additional, Liu, Z.X., additional, Wang, M.Y., additional, Zhuang, G., additional, Zou, X.L., additional, Wang, T.B., additional, Zhang, Y.Z., additional, Xie, J.L., additional, Liu, H.Q., additional, Zhang, T., additional, Liu, Y., additional, Duan, Y.M., additional, Hu, L.Q., additional, Hu, G.H., additional, Kong, D.F., additional, Wang, S.X., additional, Zhao, H.L., additional, Li, Y.Y., additional, Shao, L.M., additional, Xia, T.Y., additional, Ding, W.X., additional, Lan, T., additional, Li, H., additional, Mao, W.Z., additional, Liu, W.D., additional, Gao, X., additional, Li, J.G., additional, Zhang, S.B., additional, Zhang, X.H., additional, Liu, Z.Y., additional, Qu, C.M., additional, Zhang, S., additional, Zhang, J., additional, Ji, J.X., additional, Fan, H.R., additional, and Zhong, X.M., additional

Published
2019
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11. Experimental observation of the localized coupling between geodesic acoustic mode and magnetic islands in tokamak plasmas.

Author

Xu, Ming, Kong, D.F., Liu, A.D., Liang, Y.F., Cai, H.S., Qiu, Z.Y., Chen, W., Shi, T.H., Duan, Y.M., Xiang, H.M., Wang, Y.M., Zhang, T., Zhang, S.B., Gao, X., Feng, X., Zhou, C., Zhuang, G., Hu, L.Q., Xu, G.S., and Gong, X.Z.

Subjects
*GEODESICS, *ELECTROSTATIC interaction, *BACKSCATTERING
Abstract

The localized coupling among geodesic acoustic mode (GAM), tearing modes (TMs) and twin counter-propagating beta-induced Alfvén eigenmodes (BAEs) waves has been investigated in the experimental advanced superconducting tokamak. Before the appearance of TMs, typical continuous GAM is observed through the multi-channel Doppler backscattering (DBS) diagnostic. The twin BAEs can be excited after the burst of magnetic islands, which are localized to the q = 4 rational surface that is confirmed by the measurement of DBS array, where the GAM and twin BAEs are observed synchronically at R ≈ 2.23 m (normalized radius ρ ≈ 0.8). One reasonable excitation mechanism is proposed that the twin BAEs can be excited by the nonlinear interaction between GAM and magnetic islands. As the width of magnetic islands increases, the electromagnetic twin BAEs increase synchronically with the decreasing of electrostatic GAM, strongly suggesting that the electromagnetic components are pumped from three-wave interaction between electrostatic GAM and magnetic islands. [ABSTRACT FROM AUTHOR]

Published
2021
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14. Exciting and propagating characteristics of two coexisting kinetic geodesic acoustic modes in the edge of plasma

Author

Kong, D.F., primary, Liu, A.D., additional, Lan, T., additional, Yu, C.X., additional, Cheng, J., additional, Qiu, Z.Y., additional, Zhao, H.L., additional, Shen, H.G., additional, Yan, L.W., additional, Dong, J.Q., additional, Xu, M., additional, Zhao, K.J., additional, Duan, X.R., additional, Liu, Y., additional, Chen, R., additional, Zhang, S.B., additional, Sun, X., additional, Xie, J.L., additional, Li, H., additional, and Liu, W.D., additional

Published
2017
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15. Study of instability driving inward particle flux during the formation of transport barriers at the edge of the HL-2A tokamak

Author

Kong, D.F., primary, Lan, T., additional, Liu, A.D., additional, Yu, C.X., additional, Zhao, H.L., additional, Shen, H.G., additional, Yan, L.W., additional, Dong, J.Q., additional, Xu, M., additional, Zhao, K.J., additional, Cheng, J., additional, Duan, X.R., additional, Liu, Y., additional, Chen, R., additional, Sun, X., additional, Xie, J.L., additional, Li, H., additional, and Liu, W.D., additional

Published
2016
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17. Observations of the effect of lower hybrid waves on ELM behaviour in EAST

Author

Chen, R., primary, Xu, G.S., additional, Liang, Y., additional, Wang, H.Q., additional, Zhou, C., additional, Liu, A.D., additional, Wang, L., additional, Qian, J.P., additional, Gan, K.F., additional, Yang, J.H., additional, Duan, Y.M., additional, Li, Y.L., additional, Ding, S.Y., additional, Wu, X.Q., additional, Yan, N., additional, Chen, L., additional, Shao, L.M., additional, Zhang, W., additional, Hu, G.H., additional, Zhao, N., additional, Liu, S.C., additional, Kong, D.F., additional, and Gong, X.Z., additional

Published
2015
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18. Dynamics of L–H transition and I-phase in EAST

Author

Xu, G.S., primary, Wang, H.Q., additional, Xu, M., additional, Wan, B.N., additional, Guo, H.Y., additional, Diamond, P.H., additional, Tynan, G.R., additional, Chen, R., additional, Yan, N., additional, Kong, D.F., additional, Zhao, H.L., additional, Liu, A.D., additional, Lan, T., additional, Naulin, V., additional, Nielsen, A.H., additional, Juul Rasmussen, J., additional, Miki, K., additional, Manz, P., additional, Zhang, W., additional, Wang, L., additional, Shao, L.M., additional, Liu, S.C., additional, Chen, L., additional, Ding, S.Y., additional, Zhao, N., additional, Li, Y.L., additional, Liu, Y.L., additional, Hu, G.H., additional, Wu, X.Q., additional, and Gong, X.Z., additional

Published
2014
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20. Evolutions of zonal flows and turbulence in a tokamak edge plasma during electron cyclotron resonance heating

Author

Kong, D.F., primary, Liu, A.D., additional, Lan, T., additional, Cui, Z.Y., additional, Yu, D.L., additional, Yan, L.W., additional, Zhao, H.L., additional, Sheng, H.G., additional, Chen, R., additional, Xie, J.L., additional, Li, H., additional, Liu, W.D., additional, Yu, C.X., additional, Ding, W.X., additional, Sun, X., additional, Hong, W.Y., additional, Cheng, J., additional, Zhao, K.J., additional, Dong, J.Q., additional, and Duan, X.R., additional

Published
2013
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21. Observation of nonlinear couplings between coexisting kinetic geodesic acoustic modes in the edge plasmas of the HT-7 tokamak

Author

Kong, D.F., primary, Liu, A.D., additional, Lan, T., additional, Qiu, Z.Y., additional, Zhao, H.L., additional, Sheng, H.G., additional, Yu, C.X., additional, Chen, L., additional, Xu, G.S., additional, Zhang, W., additional, Wan, B.N., additional, Chen, R., additional, Ding, W.X., additional, Sun, X., additional, Xie, J.L., additional, Li, H., additional, and Liu, W.D., additional

Published
2013
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22. Two distinct regimes of turbulence in HL-2A tokamak plasmas

Author

Zhao, K.J., primary, Dong, J.Q., additional, Yan, L.W., additional, Hong, W.Y., additional, Li, Q., additional, Qian, J., additional, Cheng, J., additional, Liu, A.D., additional, Zhao, H.L., additional, Kong, D.F., additional, Liu, Yi, additional, Huang, Y., additional, Song, X.M., additional, Ding, X.T., additional, Yang, Q.W., additional, Duan, X.R., additional, and Liu, Yong, additional

Published
2009
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25. Glycoprotein IIb/IIIa Receptor Antagonists in Non-ST Elevation Acute Coronary Syndromes and Percutaneous Revascularisation: A Review of Trial Reports.

Author

Kong, D.F. and Califf, R.M.

Subjects
*GLYCOPROTEINS, *BLOOD platelets, *HEART diseases
Abstract

Acute coronary syndromes and percutaneous coronary interventions share a common pathophysiological mechanism of intimal disruption and platelet aggregation. Glycoprotein (GP) IIb/IIIa receptor antagonists, which interrupt the final common pathway of platelet activation and aggregation, have been shown to have clear clinical benefit as acute therapy. Treatment of 1000 patients with parenteral formulations prevents at least 1 death, 20 deaths or myocardial infarctions (MIs), and 30 deaths, MIs or revascularisation procedures over a 30-day period. These benefits are sustained at 6 months. Clinical trials of oral formulations are underway. The challenges of dose, haemorrhage and thrombocytopenia must be surmounted before oral antagonists can be incorporated into clinical practice. Despite enrolment of thousands of patients in randomised trials of GPIIb/IIIa antagonists, much additional information is needed to refine the use of this therapy in practice. Application of this drug class will advance a new therapeutic standard for ischaemic heart disease. [ABSTRACT FROM AUTHOR]

Published
1999
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