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Yang, S.M.,Na, Yong-Su,Na, D.H.,Park, J.-K.,Shi, Y.J.,Ko, W.H.,Lee, S.G.,Hahm, T.S. International Atomic Energy Agency 2018 Nuclear fusion Vol.58 No.6
<P>Perturbative experiments have been carried out using tangential neutral beam injection (NBI) and non-resonant magnetic perturbation (NRMP) to analyze the momentum transport properties in KSTAR H-modes. Diffusive and non-diffusive terms of momentum transport are evaluated from the transient analysis. Although the operating conditions and methodologies applied in the two cases are similar, the momentum transport properties obtained show clear differences. The estimated momentum diffusivity and pinch obtained in the NBI modulation experiments is larger than that in the NRMP modulation experiments. We found that this discrepancy could be a result of uncertainties in the assumption for the analysis. By introducing time varying momentum transport coefficients depending on the temperature gradient, the linearized equation shows that if the temperature perturbation exists, the evolution of toroidal rotation perturbation could be faster than the transport rate of mean quantity, since the evolution of toroidal rotation perturbation is related to <img ALIGN='MIDDLE' ALT='' SRC='http://ej.iop.org/images/0029-5515/58/6/066008/nfaab90eieqn001.gif'/>, a momentum diffusivity from perturbative analysis. This could explain the estimated higher momentum diffusivity using time independent transport coefficients in NBI experiments with higher ion temperature perturbation compared to that in NRMP modulation experiments. The differences in the momentum transport coefficient with NRMP and NBI are much reduced by considering time varying momentum transport coefficients in the time dependent transport simulation.</P>
약침이 반복적인 코카인 투여로 인한 행동적 민감화 현상에 미치는 효과
이봄비,양재하,함대현,이혜정,심인섭,Lee, B.B,Yang, C.H.,Hahm, D.H.,Lee, H.J.,Shim, I.S. 대한약침학회 2004 Journal of pharmacopuncture Vol.7 No.1
Substantial evidence suggests that behavioral and reinforcing effects of cocaine can be mediated by the mesolimbic dopaminergic system. It has been shown that repeated injections of cocaine produce increase in locomotor activity, expression of the immediate-early gene, c-fos in the nucleus accumbens (NAc), which was one of the main dopaminergic terminal areas. Herbal-acupuncture as a therapeutic intervention has been widely used for the treatment of many functional disorders such as drug abuse. Coptidis Rhizoma (CR) and its main component, berberine (BER) were selected as herbal medicine of herbal-acupuncture. Both medicines have been known to have the therapeutic effect on the central nervous system. In order to investigate the effects of CR and BER herbalacupuncture at shenmen (HT7) point (CR/H and BER/H) on the cocaine-induced behavioral sensitization, the influence of CR/H and BER/H on repeated cocaine-induced locomotor activity, the change of c-Fos expression in the brain by immunohistochemistry were examined. Male SD rats were given CR/H (0.4mg/kg) and BER/H (0.1mg/kg) 30 min before daily injections of cocaine hydrochloride (15mg/kg. i.p.) 10 days. After 3 days withdrawal, rats received a challenge injection of cocaine (15mg/kg, i.p.). Systemic challenge with cocaine produced much larger increased locomotor activity, accumbal Fos-like immunoreactivity in the NAc. Pretreatment with CR/H and BER/H significantly inhibited cocaine-induced locomotor activity, the change of c-Fos expression in the rats. Our data demonstrated that the inhibitory effects of cocaine-induced behavioral sensitization by CR/H and BER/H were closely associated with the reduction of presynaptic dopamine release in the NAc. These results suggest that CR/H and BER/H can be effectively applied to cocaine addiction.
구연 / 제 2 회의장 / 위장관 44 : Fibroblast Growth Factor - 10 ( FGF - 10 ) 의 장관 염증 조절 기전에 관한 연구
한동수(D . S . Han),조윤주(Y . J . Cho),손영우(Y . W . Sohn),이오영(O . Y . Lee),전용철(Y . C . Jeon),손주현(J . H . Sohn),윤병철(B . C . Yoon),최호순(Ho Soon Choi),함준수(J . S . Hahm),이민호(M . H . Lee),이동후(D . H . Lee),기춘석(C . 대한소화기학회 1999 대한소화기학회 추계학술대회 Vol.1999 No.-