• Title/Summary/Keyword: Kim Yu Kyung

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Synthesis of Phenolbetaine Derivatives and Their Anti-cancer Activity: Chemical Transformation of C-ring of Protoberberine (페놀베타인 유도체합성 및 항암 활성검토: 프로토베르베린에서 C-환의 화학적 변환)

  • U, Seong-Ju;Park, Ye-Jin;Hwang, Sun-Ho;Hong, Yu-Hwa;Lee, Ma-Se;Kim, Dong-Hyeon;Kim, In-Jong;Kim, Sin-Gyu
    • YAKHAK HOEJI
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    • v.40 no.5
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    • pp.487-490
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    • 1996

  • The 13-hydroxyberbine(1), derived from berberinephenolbetaine, has been derivatized to furnish a variety of compounds such as 13-oxoberbine(2), 13-thioberbine(3), 13-chloroberbi ne(4), 13-(2-methylaziridine)berbine(5) and 13-carbolactoneberbine(6). Antitumor activity of these compounds was tested.

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Dopant activation by using CW laser for LTPS processing

  • Kim, Ki-Hyung;Kim, Eun-Hyun;Ku, Yu-Mi;Park, Seong-Jin;Uchiike, Heiju;Kim, Chae-Ok;Jang, Jin
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07a
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    • pp.310-313
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    • 2005

  • CW laser dopant activation (CLDA) is suggested as an alternative to conventional thermal annealing. The sheet resistance of the ion doped poly-Si after CLDA is sufficiently low compared to the value measured after thermal annealing. The surface damage due to ion doping on the poly-Si can be recovered while CW laser scan for dopant activation. Therefore, the CLDA can be applied to LTPS processing.

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Preliminary results of groundwater flow simulation for high level radioactive disposal in Yu-seong area

  • Park kyung-woo;Cho sung-il;Kim chun-soo;Kim kyung-su;Lee kang-keun
    • Proceedings of the Korean Radioactive Waste Society Conference
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    • 2005.11b
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    • pp.253-257
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    • 2005

  • This research aims to demonstrate the regional and site scale groundwater flow simulation for the high level radioactive disposal research site in Yu-seong. We used the Modflow by a finite difference method for groundwater flow simulation, and Modpath module in Modflow package for particle tracking simulation. The range of numerical domain for regional groundwater flow model is $16.32km{\times}20.16km$. And, the depth of numerical domain was expanded to 6,000m. The area of numerical domain for the site scale groundwater flow simulation is $1.6km{\times}1.6km$. Since 2005, the underground research tunnel(URT) is being constructed at KAERI(Korea Atomic Energy Research Institute) site. In the site scale groundwater flow model, the groundwater flow around the KAERI site is simulated. And the change of groundwater level with tunnel excavation is also predicted.

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