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10 한국인 염증성장질환 환자에서 Natural Resistance-Associated Macrophage Protein 1 (NRAMP1) 유전자의 촉진자 부위의 다형성
이병욱 ( B. W. Lee ),김효종 ( H. J. Kim ),지성길 ( S. G. Chi ),이길연 ( G. Y. Lee ),정용희 ( Y. H. Jung ),한요셉 ( Yo Seb Han ),동석호 ( Seok Ho Dong ),김병호 ( Byung Ho Kim ),장영운 ( Young Woon Chang ),장린 ( Rin Chang ),이정일 ( 대한소화기학회 2002 대한소화기학회 추계학술대회 Vol.2002 No.-
Local Instruments of the KSTAR Tokamak
yo KIM,B.C. Kim,C.H. Choi,J.H. Choi,J.S. Bak,J.S. Hong,J.W. Sa,J.W. Choi,N.I. Her,W.C. Kim,Y. Chu 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
The Korea Superconducting Tokamak Advanced Research (KSTAR) device consists of a superconducting magnet system that is operated in low temperature and high magnetic field environment. We have designed local instruments for monitoring the status of the superconducting system during the period of operation including cool-down. Major functions of the local instruments are mechanical, thermal, and electrical monitoring of the system. Strain sensor, temperature sensor, displacement sensor, and voltage tap are installed. The installation method of the sensor, selection of sensor type and design of cable routing in the KSTAR system should be considered to meet electrical and thermal requirements. We present the design results of the local instruments for the KSTAR system.?
Intrinsic rotation reversal, non-local transport, and turbulence transition in KSTAR L-mode plasmas
Shi, Y.J.,Kwon, J.M.,Diamond, P.H.,Ko, W.H.,Choi, M.J.,Ko, S.H.,Hahn, S.H.,Na, D.H.,Leem, J.E.,Lee, J.A.,Yang, S.M.,Lee, K.D.,Joung, M.,Jeong, J.H.,Yoo, J.W.,Lee, W.C.,Lee, J.H.,Bae, Y.S.,Lee, S.G.,Yo International Atomic Energy Agency 2017 Nuclear fusion Vol.57 No.6
<P>Experiments of electron cyclotron resonance heating (ECH) power scan in KSTAR tokamak clearly demonstrate that both the cutoff density for non-local heat transport (NLT) and the threshold density for intrinsic rotation reversal can be determined by the collisionality. We demonstrate that NLT can be affected by ECH, and the intrinsic rotation direction follows the changes of NLT. The cutoff density of NLT and threshold density for rotation reversal can be significantly increased by ECH. The poloidal flow of turbulence in core plasma is in the electron and the ion diamagnetic direction in ECH plasmas and high density OH plasma, respectively. The auto-power spectra of density fluctuation are almost the same in the outer region for both ECH and OH plasmas. On the other hand, the divergence in density fluctuation spectra at high frequency range between OH and ECH plasma is clearly observed in core region. The features of linear confinement and saturated confinement also appeared in ECH plasma, which is similar to the linear ohmic confinement (LOC) mode and saturate ohmic confinement (SOC) mode. All these observations in macroscopic parameters and micro fluctuations suggest a possible link between the macro phenomena and the structural changes in turbulence mode.</P>
Progress of physics studies in the Hanbit mirror device
kwang-il You,A. C. England,B. H. Park,D. C. Seo,D. K. Lee,H. G. Jhang,H. K. Na,J. Chung,J. G. Bak,J. H. Lee,J. H. Yeom,J. S. Hong,K. K. Choh,M. K. Park,S. G. Lee,S. H. Seo,S. J. Yoo,S. S. Kim,S. W. Yo 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
The Hanbit is a complex mirror device that has a slot and a double half-turn antennas in the central cell to launch high power ion cyclotron resonance frequency range waves for plasma production, heating, and stabilization. However, there is no other device, such as a neutral beam injector, to heat the plasma ions. Hanbit also has three low-power supplies to launch electron cyclotron resonance frequency range waves for heating electrons. Under these circumstances, the main physics study in the Hanbit device has been devoted to RF-wave and plasma interaction studies, including MHD stabilization by using only the RF waves. In this paper, we briefly report the main results of the RF-heating research, MHD stability studies and discharge analysis during the past few years, as well as the future plans.