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박시경(Si Kyung Park),오갑진(Gab Jin Oh),배춘일(Choon Il Bae),김종현(Hyun Jong Kim),환완식(Wan Sik Han),정순간(Sun Gan Chung),조의환(Eui Whan Cho) 대한약학회 1997 약학회지 Vol.41 No.6
In our search for bioactive natural products with antitumor activity, we have valuated various extracts of Saururi Herba (Saururaceae), which has been used in traditional medicine for edema, beriberi, jaundice, turbid urine, carbuncle and furuncle. The hexane extract of the aerial part of this plant was found to show a potent cytotoxicity against several kinds of cultured human solid tumor cell lines (AGS, A549, HCT15, SKOV3, HEP-3B) in vitro. Using cytotoxicity-guided chromatographic separation of the hexane extract, cytotoxic constituent: 10-aminomethyl-3-hydroxy-4-methoxyphenanthrene-carboxylic acid lactam, was isolated and structurally identified by physico-chemical properties and spectroscopic evidences.
박시경(Si Kyung Park),오갑진(Gab Jin Oh),김현태(Hyun Tae Kim),김현종(Hyun Jong Kim),정순간(Sun Gan Chung),조의환(Eui Hwan Cho) 대한약학회 1998 약학회지 Vol.42 No.3
For the investigation of bioactive natural products with analgesic activity, we have evaluated various extracts of Saururi Herba (Saururaceae), which has been used in traditional medicine for edema, beriberi, jaundice, turbid urine, carbuncle and furuncle. The diethylether extract of this plant was found to show a significant analgesic effect on writhing syndrome in mice. Using bioactivity-guided separation of the diethylether extract, analgesic constituent, (8S, 8`R, 7R, 6`R)-2`-oxo-4,5: 4`,5`-bis(methylenedioxy)-delta1,3,5,3`-8.8`, 7.6`, 2.O.5`-neolignan(sauchinone) was isolated and structurally identified by physico-chemical properties and spectroscopic evidences. This compound has good analgesic activity with lower toxicity, as compared to other antipyretic-analgesic drug(acetaminophen).
다중인터페이스 리액터와 Double PLL제어를 이용한 Modular U.P.S 설계
박인덕(In-Duck Park),정상식(Sang-Sik Jeung),김시경(Si-Kyung Kim) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.7
A high power U.P.S system utilizing the parallel connection of low power U.P.S is developed. For the purpose of elimination the circular current between U.P.S.s, a digital circuit is employed. Furthermore a double phase synchronization and an interphase reactor are used to eliminate the circular current and the voltage ripples caused by the system parameter unbalances of parall connected U.P.S.s. The digital controller is implemented with ADSP21061 as aspect of a functional convenience.
다우비치 웨이브릿 기법을 이용한 리커시브 실시간 고장점 표정시스템
박인덕(In-Deok Park),이승환(Seung-Hwan Lee),김시경(Si-Kyung Kim) 전력전자학회 2009 전력전자학술대회 논문집 Vol.2009 No.1
This paper is distribution utility to generation of analysis fault several cases on the ground of substation in a energy meter three phase current, voltage data measurement to fault type and characteristics. Daubechie wavelet transformation of utilization method algorism from the distribution utility to generation of fault in image impedance etc several parameter for utility characteristics effective to make probe of recursive real time fault point system.
박인덕(In-Deok Park),이승환(Seung-Hwan Lee),최광진(Kwang-Jin Choi),김시경(Si-Kyung Kim) 대한전기학회 2009 전기학회논문지 Vol.58 No.10
This paper caused a distribution utility to generation of analysis fault several cases on the ground of substation in a energy meter three phase current, voltage data measurement to fault type and characteristics. Mother wavelet transformation of suitable to method algorism from the distribution utility to generation of fault in image impedance etc several parameter for utility characteristics effective to probatory fault point extraction.
박인덕(In-Deok Park),이승환(Seung-Hwan Lee),김시경(Si-Kyung Kim) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
This paper is distribution utility to generation of analysis fault several cases on the ground of substation in a energy meter three phase current, voltage data measurement to fault type and characteristics. Mother wavelet transformation of suitable to method algorism from the distribution utility to generation of fault in image impedance etc several parameter for utility characteristics effective to probatory.
안병태,오갑진,박시경,정순간,조의환,김재길,노재섭,이경순,Ahn, Byung-Tae,Oh, Kap-Jin,Park, Si-Kyung,Chung, Sun-Gan,Cho, Eui-Hwan,Kim, Jae-Gil,Ro, Jai-Seup,Lee, Kyong-Soon 한국생약학회 1996 생약학회지 Vol.27 No.3
Seven phenolic compounds were isolated from the leaves of Spiraea salicifolia. Their structures were characterized as cinnamic acid, ${\rho}-hydroxy$ cinnamic acid, ${\rho}-methoxy$ cinnamic acid, $1-O-coumaroyl-{\beta}-D-glucopyranose$, $1-O-caffeoyl-{\beta}-D-glucopyranose$, hyperoside and quercetin $3-O-(6'-O-{\alpha}-L-arbinopyranosyl)-{\beta}-D-galactopyranoside$ by chemical and spectroscopic evidence.