• Title/Summary/Keyword: Park Ki Jong

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Pharmacognostical Studies on the Korean Folk Medicine 'Ki Rin Cho' (민간약 기린초의 생약학적 연구)

  • Park, Jong-Hee;Geon, Dae-Gun;Kim, Mee-Hee
    • Korean Journal of Pharmacognosy
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    • v.39 no.2
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    • pp.137-141
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    • 2008

  • Korean folk medicine 'Ki Rin Cho' has been used to cure stanching and counteracting poison. The botanical origin of the crude drug has never been studied pharmacognostically. To clarify the botanical origin of 'Ki Rin Cho', the morphological and anatomical characteristics of Sedum species growing in Korea, i.e. S. aizoon, S. kamtschaticum and S. latiovalifolium were studied. As a result, 'Ki Rin Cho' was proved to be Sedum kamtschaticum and Sedum aizoon.

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$H_2$ Design for the Square Decoupling Controllers Using LMI Method (LMI기법을 이용한 정방 비결합 제어기의 $H_2$설계)

  • Lee, Jong-Sung;Kang, Ki-Won;Cho, Yong-Suk;Park, Ki-Heon
    • Proceedings of the KIEE Conference
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    • 2000.07d
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    • pp.2645-2647
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    • 2000

  • This paper presents an LMI(Linear Matrix Inequalities) method for designing the optimal decoupling controller. The proposed controller based on the Two-Degree-of-Freedom configuration considers both the performance of controller and decoupling properties. The decoupling controller parameters are obtained from LMI method for computational efficiency.

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New Taurine Derivatives from a Starfish and a Sponge

  • Wang, Weihong;Lee, Yoon-Mi;Hong, Jong-Ki;Lee, Chong-Ok;Park, Jong-Hee;Jung, Jee-H.
    • Natural Product Sciences
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    • v.9 no.4
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    • pp.241-244
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    • 2003

  • A new (2) and a known (1) acylated taurine derivatives were isolated from MeOH extract of the starfish Certonardoa semiregularis. Another new acylated taurine derivative (3) was isolated from the MeOH extract of the sponge Erylus nobilis. The structures were determined on the basis of spectral analysis.

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