제주공항의 항공기운항에 따른 기상요소 분석 /

허성일,이채욱 大邱大學校 情報通信硏究所, 2002 情報通信硏究 Vol.1 No.1

금속 다우엘코어에 사용된 수종의 전부도재관의 색조변화에 관한 연구

허성일,임헌송,임주환,조인호,Hur Sung-Il,Lim Heon-Song,Lim Ju-Hwan,Cho In-Ho 대한치과보철학회 2001 대한치과보철학회지 Vol.39 No.5

The purpose of this study is to compare and analyze the shade changes(${\Delta}E^*$) about $In-Ceram^{(R)}$, $IPS-Empress^{(R)}$, $OPC^{(R)}$ by using of the spectrophotometer arising from inital status and before and after cementation of the resin cement mounted on the metal core. We used a couple of statistics such as 'One- Way ANOVA' and 'Multiple Range Test.' We could be able to verify significantly what is being discussed here up to 95%. The results drawn from our research are as follows : 1. At the time of our experiments regarding the initial shapes of all-ceramic and mounting status of all-ceramic on the metal crown(${\Delta}E^*1$), and a comparison of mounting of all ceramic on the metal crown with all-ceramic cemented on the metal core(${\Delta}E^*2$), at the time of shade change of initial shapes and after we cemented on the metal core. (1) no significant difference among all-ceramics was found. (2) no particular difference was found regarding the $In-Ceram^{(R)}$. (3) a significant difference between the ${\Delta}E^*1$ and ${\Delta}E^*2$ regarding the $IPS-Empress^{(R)}$ was found(P<0.05). (4) a significant difference between the ${\Delta}E^*1$ and ${\Delta}E^*2$ regarding the $OPC^{(R)}$ was found(P<0.05). 2. When we compared the shade changes(${\Delta}E^*$) resulted from before and after the cementation on each of the parts involved of some all-ceramic, we could be able to find shade change increase form incisal third, middle third. and cervical third in that order in $In-Ceram^{(R)}$(spinell), IPS $Empress^{(R)}$, and $OPC^{(R)}$ all. In addition. we could be able to find a significant difference between cervical third and incisal third, middle third. (P<0.05) From what we have just seen, we might conclude that there is a significant shade change difference before and after the cementation with respect to $IPS-Empress^{(R)}$ and $OPC^{(R)}$. In addition, we could also be able to find more shade change difference at the cervical third rather than incisal third and middle third depending on the parts involved.

전자복사문서의 성질과 증거능력에 대한 고찰

허성일 고려대학교 2006 虎院論集 Vol.14 No.-

There are so many electronic copies as development of copy-technology. But their classification is not clear and there is little or no research about the classification of electronic copy. So this article tries to find out the classification of electronic copy and the capability as an evidence in civil action. First, electronic copy can be treated as a document in civil aciton by the concept-requisites of document. Second, electronic copy can be classified as a duplicate not a original letter and as a private document not an official document in principle. For example if somebody make a copy of an official document by copy-machine, that is not an official document by copywriter's intention. As a result, Electronic copy has no inevitable relation with the original document's classification. Third, electronic copy has a capability as an evidence in civil action in principle. But we have to pay attention abotu the Korean Civil Proceeding Act §355 I that prohibits the parties in a lawsuit submitting without authentication because it has to be interpreted as depriving the evidence-capability of the document withdout authentication in civil aciton. But the examples of judgement says the judge can consider it as an evidence in civil proceedings if the other parties do not take objection against the documents without authentication. And I think the attitude of the examples of judgement is right. So, documents without authentication can be take the qualification as a evidence in civil proceedings.

『現代漢語詞典』의 사전학적 조명

허성도(許成道) 한국사전학회 2005 한국사전학 Vol.- No.5

시인 金素雲에 관하여

허성일 한국외국어대학교 학생통역협회 1986 외대통역협회지 Vol.4 No.1

유용미생물발효를 적용한 고려엉겅퀴의 면역증강효능연구

허성일,김영한,정상미,라문진 한국약용작물학회 2018 한국약용작물학술대회 발표집 Vol.2018 No.10

Background : Cirsium setidens is a perennial wild herb that belongs to the Asteraceae family. It grows in the mountainous region of Gangwon-do in Korea and is also called gondre. The bioconversion technology applied in this study has the same meaning as biosynthesis, biocatalyst, etc., and refers to a technique for producing desired products from precursors using enzymatic functions of microorganisms. Therefore, useful microorganisms having immunological activity were selected and Cirsium setidens fermentation products were prepared by applying bioconversion technology. And fermented product extracts were prepared to consider as a good sources of natural immune enhancement and functional food ingredients. Methods and Results : Lactobacillus fermentum, Lactobacillus plantarum, Saccharomyces cerevisiae, Weissella cibaria, and Lactobacillus plantarum were used as isolates from traditional foods. The fermentation product was set to a condition that the inherent physical properties did not change and did not generate a unique odor during fermentation. Cirsium setidens was fermented at 37℃ for 24 hours. And the fermented material was sterilized at 9 0℃ for 1 hour and then dried at 70℃ and pulverized. The contents of pectolinarin and pectolinarigenin, which are non - glycosides, were analyzed before and after fermentation using HPLC. Also NO production was measured in RAW264.7 cells after extract treatment at various concentrations using Griess reagent kit . The content of pectolinarin was increased in fermented Crisium setidens before fermentation, but the content of pectolinarigenin was increased after fermentation. In addition, the water extract of the fermented material accelerated the NO production compared to the pre - fermented material. Conclusion : As a result, relatively high immunostimulating effect were observed in dried Crisium setidens after fermentation, and it was confirmed that it could be a ingredient material for health functional food.

민들레 추출물의 항산화 활성 및 세포독성 효과

허성일,왕명현 한국생약학회 2008 생약학회지 Vol.39 No.3

This study was investigated antioxidant and anticancer activity of water, methanol extract from upper and root part of Taraxacum mongolicum H. Total phenolic compound contents of methanol and water extracts from upper part were 51.95±0.18 mg/g and 48.16±0.89 mg/g respectively, and total flavonoid compound contents were estimated as 20.57±1.12 mg/ g in methanol extract and 6.55±1.20 mg/g in water extract. EC50 values for DPPH radical scavenging activity of methanol and water extract from upper part were 138.47±3.78 μg/mL and 204.38±5.32 μg/mL, and methanol and water extracts from root part were as 512±8.11 μg/mL in methanol extract and 1315.05±11.98μg/mL in water extract. Reducing power and hydroxyl radical (·OH) scavenging activity estimated that methanol extract of each part were higher than water extracts. The cell viability showed that the methanol extract from upper part had a cytotoxicity in the growth of colon carcinoma cell (44.58%). Both water extract (51.97±11.43%) from upper part and methanol (53.46±19.77%), water (52.79±13.53%) extracts from root part had quite higher cytotoxicity than that of methanol extract (88.25±2.02%) from upper part. Based on the results, It was suggested that the methanol extract of Taraxacum mongolicum H. were potential materials for use as functional food and medicine.

부위별 개쑥부쟁이(Aster ciliosus Kitamura)의 이화학적 성상 및 항산화 활성

허성일,김영선,사재훈,심태흠,왕명현 한국생약학회 2005 생약학회지 Vol.36 No.3

개쑥부쟁이의 생리활성 기능을 탐색하고 기능성 신물질을 개발하기 위하여 개쑥부쟁이의 부위별 즉, 꽃, 줄기, 뿌리로 나누어 화학성분, UV 흡광도 측정 및 항산화 활성을 조사하였다. 일반성분 분석은 부위별에 따라 다소 차이는 있으나 탄수화물 73~81%, 수분 11~15%, 조회분 4~7%, 조단백 2~6%, 조지방 1~4% 순으로 나타났다. 주요 무기성분은 Ca, K, Na, P로 나타났으며, 꽃에서 K이 가장 많았으며, 줄기와 뿌리에서는 Na이 가장 많은 것으로 나타났다. 주요지방산은 linoleic acid, palmitic acid, oleic acid, linolenic acid 으로 나타났으며, 포화 지방산(27~40%)에 비해 불포화지방산(59~72%)이 높게 나타났다. 구성당은 총 4종이 분리동정되었는데, glucose가 줄기>꽃>뿌리 순으로 보여주었고, xylose, galactose, arabinose순으로 나타났다. 페놀성 화합물의 함량은 280 nm에서 흡광도를 측정 결과 뿌리와 줄기의 chloroform 추출물에서 가장 높았고, 꽃과 뿌리의 ethanol 추출물과 뿌리의 75% ethanol 추출물에서 높게 나타났다. 또한 카로티노이드계 화합물은 꽃의 ethanol 추출물에서, 줄기의 chloroform 추출물에서 높게 나타났다. 항산화효과는 뿌리의 75% ethanol 추출물에서 가장 높았고, 뿌리의 ethanol 추출물과 꽃의 ethanol 추출물이 높은 항산화 효과를 나타내었다.

땅빈대 추출물의 항산화 활성 및 세포독성 효과

허성일,호위성,한웅,왕명현 한국생약학회 2008 생약학회지 Vol.39 No.4

The antioxidant activities, anti-inflammatory activity and cytotoxic effects of methanol extract from Euphorbia humifusa were evaluated in this study. Total phenolic compound contents were 68.35±0.16 mg/g and total flavonoid compound contents were estimated as 38.74±1.26 mg/g. EC50 values for DPPH radical scavenging activity of methanol extract was 56.26±0.66 μg/mL and those of positive controls as ascorbic acid, α-tocopherol and BHA were 8.38±0.14 μg/mL, 16.45±0.89 μg/mL and 21.18±1.01 μg/mL respectively. NO scavenging activity increased in depending on concentration of extract. Treatment of RAW 264.7 cells with extract caused inhibition of LPS-induced nitric oxide production. The cell viability showed that the methanol extract had cytotoxicity in the growth of breast cancer cell (66.54±1.91% at 400 μg/mL conc., 43.98±3.35% at 800 μg/mL conc.). Based on the results, It was suggested that the methanol extract of Euphorbia humifusa has a potential candidate for functional cosmetic and medicine.

산채 묵나물의 항산화 및 면역증강 효능 연구

허성일,김영한,정상미,라문진,김선영 한국약용작물학회 2017 한국약용작물학술대회 발표집 Vol.2017 No.09