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김혜숙,윤영임,조은정,최윤희,오미영,김영관 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.A
This research was carried out to find out the possibility of using Faraday's law in analyzing the electrocoagulation system. Bench-scale reactor equipped with aluminum electrode plates was operated using synthetic wastewater which received sodium chloride for conductivity adjustment. Phosphate was added to the wastewater to induce the precipitation with Al. The amount of aluminum dissolved from the electrodes could be predicted by Faraday's law with a difference less than 5%. This difference was greater at a higher electric current, probably due to the increased solution temperature. However, effect of pH on the dissolution of the aluminum was negligible. The result of this study suggested that the operating condition of electrocoagulation system could be developed using the Faraday's law when the pollutant concentration is given.
억제대 적용지침 개발을 통한 불필요한 억제대 적용율 감소활동
곽경선,김성은,배은경,이은숙,이은혜,최윤정,이윤경 한국의료QA학회 2009 한국의료질향상학회지 Vol.15 No.2
문제: 억제대 적용에 대한구체적 적용지침 없이 의례적으로 억제대를사용함으로 인해 환자들의 신체적 또는 정신적 안전을 위협할 수 있다. 목적: 완전 진정상태 이거나 근력이 약하여 발관능력이 없는 환자에 대한 예방적 적용, 바빠서 환자를볼수 없 는경우, 간호사본인의 판단이 없이 타인의 요구에 따르는등의 불필요한 억제대 적용이 증가하는 원인을 파악하여 중환자실의 특수성에 맞는 억제대 적용및 제거 지침을 마련하고자 한다. 의료기관: 인천광역시에 소재한 의과대학 소속병원의 집중치료실 개선효과: 억제대 적용에 대한중환자실 간호사에게 미치는 영향을 보면 태도 정도 p=0.09(p<0.1), 올바른 수행 능력은 p= 0.005 (p <0.0히로통계적으로유의한것으로 나타났다. 지식 정도 p=0.172(p<0.05) 통계적으로 유의 하지는 않지만 모든항목이 개선 활동전 에 비해 2,3차 개선 활동후에 향상한 것으로 나타났다. 개선활동전에 8.1%였던 간호 기록, 0.7%였던 간호중재, 0%였던 의사처방율이 3차 개선 활동 후 3가지 모두 100% 달성되었다. 이는 억제대 적용율 갑소 및 부적절한 억제대 적용율은 유의하게 감소하였다. 교훈: 중환자실 간호사의 억제대 적용에 대한태도, 지식, 올바른 간호 수행 능력은 지속적으로 재평가 되어지고, 교육내용은좀더 나은 간호제공을 위하여 개발 되어져야 할 것이다. 억제대 적용 기준과 제거 기준을 Check List 하여 객관성의 유지를 위한 개선 활동은계속적으로 Feedback 되어야 할 것이다.
Choi, Hye-Sook Yun,Pyo, Mi-Kyung,Park, Kyung-Mi The Pharmaceutical Society of Korea 1998 Archives of Pharmacal Research Vol.21 No.3
Two new 4-hydroxybenzyl alcohol derivatives (1 and 2) were isolated from the methanol extract obtained from fresh tubers of Gastrodia elata together with 4-hydroxybenzyl methyl ether, 4-hydroxybenzyl alcoho, bis(4-hydroxyphenyl)methane, 4-hydroxybenzaldehyde, $\beta$-sitosterol and plamitic acid. 1 and 2 were identified as 3-O-($4^1$-hydroxybenzyl)-$\beta$-sitosterol and 4-[$4^1$-($4^{11}$-hydroxybenzyloxy)benzyloxy]benzyl methyl ether, respectively, according to the spectroscopic data.
강장제로 사용된 생약의 조사연구 (Ⅰ) : 간담에 미치는 효과에 관하여
Hye Sook Yun Choi(윤혜숙),Il Moo Chang(장일무) 한국생약학회 1977 생약학회지 Vol.8 No.3
Literature survey was undertaken to investigate what medicinal plants have been used as hepatotonic or for treatment of various liver diseases in far eastern asian countries. Total 59 plants were found to be described in the literatures. And 9 plants among them were studied on their hepatotonic activities against animal model of hepatitis. Several plants appeared to exhibit profound activities on the hepatitis model employed.
Chemistry and Pharmacology of Plantago Semen
Hye Sook Yun Choi,Il-Moo Chang 한국생약학회 1980 생약학회지 Vol.11 No.1
Plantago semen, seeds of Plantago spp, have long been use in oriental countries as hepatotonics for treating various liver diseases. The hepatotonic activities were confirmed by evaluating the methanol extract of Plantago semen against carbontetrachloride intoxication in mice. In order to locate the compounds involved in the hepatotonic activities, the met hanol extract was fractionated and the effects of each solvent fractions were evaluated against CCl₄ intoxication. Measurement of serum transaminase activities and liver biopsy data, in accord with the results obtained from measurement of sleep duration induced by hexobarbital, showed that water and chloroform fractions have significant hepatotonic activities. From the pharmacologically active fractions, aucubine and one disaccharide have been isolated.
Separation and identification of Cirsimarin from Cirsium Pendulum FISCH
Hye Sook Yun Choi(윤혜숙),Il Moo Chang(장일무) 한국생약학회 1978 생약학회지 Vol.9 No.3
Whole plant of Cirsium pendulum FISCH was extracted with methanol and a flavonoid glycoside was isolated from the methanol extract. The glycoflavonoid was identified as cirsimarin, 4`,5-dihydroxy-6,7-dimethoxyflavone-4`-β-D-glucopyranoside.
Isolation of 4,4^I-Dihydroxybenzyl Sulfoxide from Gastrodia elata
Yun, Hye-Sook,Choi, Hye-Sook,Pyo, Mi -Kyung The Pharmaceutical Society of Korea 1997 Archives of Pharmacal Research Vol.20 No.1
In the course of continous work on tubers of Gastrodia elata, a new constituent, 4, 4$^{I}$-dihydroxybenzyl sulfoxide was isolated from the ethyl acetate soluble fraction prepared from the methanol extract. The structure of the compound was identified from the elemental analytical and spectroscopic data in comparison with those of non-substituted benzyl sulfoxide.e.
Platelet Anti-Aggregating Plant Materials
Hye Sook Yun-Choi,Jae Hoon Kim,Sun Ok Kim,Jong Ran Lee 한국생약학회 1986 생약학회지 Vol.17 No.2
The smear method developed by Velaskar and Chitre was modified to allow the screening of plant extracts and/or fractions for platelet anti-aggregating activity. The modified smear method was also found suitable for massive screening of pure compounds. Sample fractions prepared from various plant extracts were examined for their effects against ADP, arachidonic acid (AA) or collagen induced platelet aggregations. Several solvent fractions of plant extracts including water fraction prepared from the methanol extract of Acanthopanax sp. was inhibitory against rat platelet aggregations. The activity guided treatments and fractionations of the water fraction from A. senticosus Max yielded two anti-platelet aggregatory substances, 3, 4-dihydroxybenzoic acid (I) and its artefact ethyl 3, 4-dihydroxybenzoate(II). The inhibitory activities of I and II against rat platelet aggregation were compared with that of aspirin, a known inhibitor of platelet aggregation. Discussions also included the results of the investigations on the structural activity relationships among the various dihydroxybenzoic acid derivatives against platelet aggregations induced by either one of ADP, AA or collagen.