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현진원,임경화,신진이,성민숙,원용진,김영식,강삼식,장일무,우원식,백우현,김형자,우은란,박호군,박재갑,Hyun, Jin-Won,Lim, Kyoung-Hwa,Shin, Jin-E,Sung, Min-Sook,Won, Yong-Jin,Kim, Yeong-Shik,Kang, Sam-Sik,Chang, Il-Moo,Woo, Won-Sick,Paik, Woo-Hyun 한국생약학회 1994 생약학회지 Vol.25 No.2
Antineoplastic activity against human gastric and colon carcinoma cell lines was measured in 100 extracts from 90 plants using MTT (3-[4,5-dimethyl thiazo-2-yl]-2, 5-diphenyl tetrazolium bromide) method. Four extracts from four plants have been reported to have antineoplastic effect. Extracts from remaining 86 plants failed to show significant cytotoxic effect at the concentration of less than $230\;{\mu}/ml$.
현진원(Jin-Won Hyun),김재윤(Jae-Yoon Kim),김승재(Seung-Jae Kim),남재원(Jae-Won Nam) 대한전자공학회 2022 대한전자공학회 학술대회 Vol.2022 No.11
Rapid technology scale-down results in significant performance improvement on digital processing speed associated with enhanced power efficiency due to reduced supply voltage. However, relative circuit noise power becomes enlarged. Thus, low noise clock generation circuits are highly required. As a key factor of evaluating the clocking system, analyzing jitter contribution becomes essential. However, the more technology scaling down has been progressed, the more jitter analysis has been complicated. In this paper, we implemented 4 methods to enhance jitter performance of delay-locked-loop (DLL) circuit to support systematic jitter analysis. After applying our proposed DLL design optimization technique targeting for 1GHz clock generation under 1.2V supply voltage, we obtained 63.7% jitter noise reduction in 65nm standard CMOS technology.
전통 약용식물 및 각종 식물의 항암효과에 대한 연구(Ⅱ)
현진원(Jin Won Hyun),임경화(Kyoung Hwa Lim),신진이(Jin E Shin),성민숙(Min Sook Sung),오재환(Jae Hwan Oh),양용만(Yong Man Yang),원용진(Yong Jin Won),김영식(Yeong Shik Kim),강삼식(Sam Sik Kang),장일무(Il Moo Chang),백우현(Woo Hyun Paik 한국생약학회 1995 생약학회지 Vol.25 No.4
Antineoplastic activity against human gastric and colon carcinoma cell lines was measured in 49 extracts from 46 plants using the MTT(3-[4, 5-dimethyl thiazol-2-yl]-2, 5-diphenyl tetrazolium bromide) method. Six extracts from five plants have been reported to have antineoplastic effects. Extracts from remaining the 41 plants failed to show significant cytotoxic effect at the concentration of less than 230 ㎍/㎖.
전통 약용식물 및 각종 식물의 항암 효과에 대한 연구 (III)
현진원,임경화,성민숙,강삼식,백우현,배건우,조현,김형자,우은란,박호군,박재갑,양용만,Hyun, Jin-Won,Lim, Kyoung-Hwa,Sung, Min-Sook,Kang, Sam-Sik,Paik, Woo-Hyun,Bae, Kun-Woo,Cho, Hyun,Kim, Hyoung-Ja,Woo, Eun-Rhan,Park, Ho-Koon,Park, Jae-Gah 한국생약학회 1996 생약학회지 Vol.27 No.2
Antineoplastic activity against human gastric and colon carcinoma cell lines was tested in eighty-three species of Korean plants including Korean medicinal plants which have been frequently used in oriental herb prescriptions. The plant materials were extracted with methanol and the cytotoxic activity was tested using a calorimetric tetrazolium assay (MTT assay). Twenty-six plant extracts against gastric carcinoma cell line, eighteen extracts against colon carcinoma cell line and fourteen plant extracts against both carcinoma cell lines showed antineoplastic activity at the concentration of less than $100{\mu}g/ml$. The effective components from four species have been isolated and reported.
박재갑,현진원,임경화,신진이,원용진,이영득,신국현,장일무,우원식,Park, Jae-Gahb,Hyun, Jin-Won,Lim, Kyoung-Hwa,Shin, Jin-E,Won, Yong-Jin,Yi, Young-Deuk,Shin, Kuk-Hyun,Chang, Il-Moo,Woo, Won-Sick 한국생약학회 1993 생약학회지 Vol.24 No.3
Antineoplastic activity against human gastric, colon and hepatocellular carcinoma cell lines were measured in 100 extracts from 80 medicinal plants using MTT (3-[4, 5-dimethyl thiazol-2-yl]-2, 5-diphenyl tetrazolium bromide) method. Seventeen extracts from fourteen plants, all of which have previously been reported to have antineoplastic effect, had $IC_{50}$(50% inhibitory concentration) values of less than $230{\;}{\mu}g/ml$ in at least one of the three cell lines. Extracts from remaining sixty-six medicinal plants failed to show significant cytotoxic effect at the concentration of less than $230{\;}{\mu}g/ml$.
이현아(Hyun Ah Lee),김병각(Byung Kak Kim),현진원(Jin Won Hyun) 한국환경성돌연변이발암원학회 2004 한국환경성돌연변이·발암원학회지 Vol.24 No.2
To find active components in Ganoderma Iucidum. their free amino acid and free amino acid derivatives were analyzed. After extracting with hot water, the extracts were filtrated by three steps. So, supernatants below 10,000 dalton were obtained. Filtrates were derivativated with PITC (phenylthiocarbamyl) derivative reagent and PITC amino acid was obtained. Then, they were analyzed by RP-HPLC. 13 amino acids were analyzed in cultured Korean Nok-kak ji (one of Ganoderma Iucidum), 15 amino acids in cultured Korean Ganoderma Iucidum, 12 amino acids wild Ganoderma Iucidum, 16 amino acids in cultured Taiwan Ganodenna Iucidum.
마우스 대식세포에서 스테로이드 호르몬과 세포내 Ca++ 이 타우린수송체의 활성에 미치는 영향
김하원(Ha Won Kim),안혜숙(Hye Suk An),이선민(Sun Min Lee),이은진(Eun Jin Lee),현진원(Jin Won Hyun),박건구(Kun Koo Park),박태선(Tae Sun Park),김병각(Byong Kak Kim) 한국응용약물학회 2001 Biomolecules & Therapeutics(구 응용약물학회지) Vol.9 No.1
N/A The activity of taurine transporter is affected by various extracellular stimuli such as ion, hormone and stress. To assess effects of steroid hormones and cyclosporin A (CsA) on the taurine transporter activity, murine monocytic RAW264.7 cell line was stimulated with dexamethasone (DM), triamcinolone (TA), cortisone (CS), hydrocortisone (HCS), prednisone (PSN), prednisolone (PSL) and methylprednisolone (MPSL) in the presence of 12-O-tetradecanoylphorbol-l3-acetate (TPA). Treatment of TPA on the cell line led to significant reduction of taurine transporter activity. However, in case of stimulation of the cells with steroid hormones in the presence of TPA, all of them recovered TPA-induced reduction of the taurine transporter activity. Treatment of the cells with CsA led to significant reduction of the taurine transporter activity. Ionomycin (IM) recovered the reduced taurine transporter activity by CsA, but failed in the presence of EDTA, a calcium chelating agent. These results showed that glucocorticoid hormone recovered TPA-induced reduction of taurine transporter activity and that IM recovered CsA-induced reduction of the transporter activity by increasing intracellular free Ca^(++) concentration.
Cordyceps militaris 로부터 분리한 Ergosterol Peroxide 의 한국인 암세포주에 대한 항암작용
김하원(Ha Won Kim),김영호(Young Ho Kim),채흥복(Xing Fu Cai),남경숙(Kyong Suk Nam),이승정(Seung Jung Lee),안혜숙(Hye Suk An),정은호(Eun Ho Jeong),윤승현(Seung Hyun Yun),성수경(Su Kyong Sung),이성진(Sung Jin Lee),현진원(Jin Won Hyun) 한국균학회 2001 韓國菌學會誌 Vol.29 No.1
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