• Title/Summary/Keyword: IHN

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A Study on the Research and Selection of Six Sigma Project by TP Deployment (TP 전개에 의한 6시그마 프로젝트 도출 및 선정에 대한 연구)

  • Ihn Jae-Soon;Park Young-Taek
    • Proceedings of the Korean Society for Quality Management Conference
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    • 2004.04a
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    • pp.9-12
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    • 2004
  • 본 논문에서는 기존 프로젝트 선정에 이용되던 COPQ, VOC/VOB 방식대신 기업의 총생산성에 많은 기여를 하는 프로젝트를 도출, 선정할 수 있도록 하는 TP 전개(Deployment) 방식의 프로젝트 도출, 선정 방안을 제안하고자한다.

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Studies on the Components of Codonopsis pilosulae Radix by GC-Mass (GC-Mass에 의한 만삼(蔓蔘) 에텔엑기스의 성분 연구)

  • Lee, Ihn-Rhan
    • Korean Journal of Pharmacognosy
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    • v.16 no.3
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    • pp.136-140
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    • 1985
  • Sixty-eight kinds of aliphatic and aromatic substances peaks from ether extract of Codonopsis pilosulae Radix were shown by GC-Mass. Of them, 3 kinds of compounds were identified as ethyl benzene, acetophenone and 1-phenyl-2-butanone, which are compared with authentic specimen, and one compound was assumed as an aliphatic $C_8H_{16}O\;or\;C_9H_{20}$.

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Isolation of a New Phenylpropanoid from Codonopsis ussuriensis

  • Lee, Ihn-Rhan;Seo, Eun-Kyong
    • Archives of Pharmacal Research
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    • v.13 no.4
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    • pp.365-366
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    • 1990
  • A new phenylpropanoid was isolated from the roots of Codonopsis ussuriensis (Rupr. et Maxim) Hemsley. It was coloress crystals, mp. 140-142.deg.C and was elucidated as 4-(3-ethoxy-1-propenyl)-2, 6-dimethoxyphenyl-$\beta$-D-glucopyranoside on basis of spectral data analysis.

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Phenolic Compounds from Duchesnea chryszntha and their Cytotoxic Activities in Human Cancer Cell

  • Lee, Ihn-Rhan;Yang, Mi-Young
    • Archives of Pharmacal Research
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    • v.17 no.6
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    • pp.476-479
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    • 1994
  • Five pohenolic compounds were isolated from 80% aq. acetone extract of Duchesnea chyrysantha. Their crytotoxicities were screened by the colorimetric tetrazolium assay (MIT assay). Gallic acid, methyl caffeate, protocatechuic acid and pedunculagin mildly inhibited the survival of $PC_{14}{\;}and{\;}MKN_{45}$ human cancer cell. Brevifolin carboxylic acid showed a strong cytotoxic activity.

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Studies on the Pharmacological Actions and Biological Active Components of Korean Traditional Medicine (V) -Isolation of an Antimicrobial Phenolic Compound from Duchesnea indica- (한국전통생약의 약리작용과 활성물질에 관한 연구(V) -사매(蛇?)의 항균성분획의 페놀성물질-)

  • Lee, Ihn-Rhan;Lee, Yun-Sil;Han, Yong-Nam
    • YAKHAK HOEJI
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    • v.32 no.5
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    • pp.308-312
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    • 1988
  • A phenolic compound isolated from the ethylacetate extract of Duchesnea indica (Andr.) Focke (Rosaceae) showed antimicrobial activities against Staphylococcus aureus, Shigella dysentriae and Pseudomonas aeruginosa. This compound was identified as ellagic acid by spectral analysis.

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Pharmacological activities and the constituents of the leaves of Hedera rhombea Bean (II) : On the constituents of the leaves

  • Lee, Ihn-Rhan;Lee, Min-Suk;Choi, Kyoung-Ah;Seo, Eun-Kyoung
    • Archives of Pharmacal Research
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    • v.16 no.4
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    • pp.331-335
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    • 1993
  • Three phenolic compounds and a dammarane glycoside were isolated from the leaves of Hedera rhombea Bean (Araliaceae). Their structures were characterized as rutin, caffeic acid, 3.5-dicaffeoyl quinic acid and kizuta saponin $K_5$ by chemical and spectral analysis.

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