http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
KS H ISO 1242 표준의 평가 : 라반딘 정유의 산값 측정
전혜림,이은지,장혜진,손현화,김건,김남선,전명숙,이동선 서울여자대학교 2010 자연과학연구논문집 Vol.22 No.-
The acid value (AV) as well as the ester value of essential oil is an important index to evaluate quality of essential oil. The official standard analytical method of KS H ISO 1242 dealing with “Essential oils - Determination of acid value” was assessed experimentally using two lavandin essential oils obtained in France as an example. One French lavandin oil sample showed the results of AV= 0.9 by both indicator method and potentiometry. Another sample showed AV = 1.9 by indicator method and AV = 1.6 by potentiometry. Latter lavandin oil sample exhibited significantly higher acid value than maximum value of 1 described in the standard. This result suggests that latter lavandin oil was contaminated, because this oil was contained in an orange juice bottle. Results of this study proved that KS H ISO 1242 could be used as a suitable scientific standard for the determination of acid value of essential oils.
생활체육 테니스 참가자의 참여정도에 따른 여가만족 및 생활만족에 관한 연구
김승철,이동현,육영숙,장선웅 한국스포츠심리학회 2003 한국스포츠심리학회지 Vol.14 No.3
본 연구는 생활체육 참가자의 사회인구학적 특성과 참여정도에 따른 여가만족과 생활만족의 차이 및 관계를 비교 분석하여 생활체육 테니스의 참여 기회확대와 활성화를 위한 기초자료를 제공하고자 한다. 이와 같은 목적을 달성하기 위하여 2002년 서울시 S구 소재의 생활체육 테니스 시설을 중심으로 테니스 활동에 참가하는 만20세 이상 성인을 모집단으로 무선표집된 10개소 테니스 시설에서 총 300명을 집락표집(cluster sampling) 하여 생활체육 테니스 참가자의 참여정도에 따른 여가만족 및 생활만족의 각 변인간 차이를 분석하였다. 그 결과 사회인구학적 특성변인에 따른 여가만족에서는 남자가 신체적, 사회?교육적, 환경적 요인이 여자보다 높게 나타났고, 연령에서는 연령이 높아질수록 신체적 요인이 증가하는 것으로 나타났으며, 고연령 집단에서 사회?교육적 요인, 환경적, 휴식적 요인이 높게 나타났다. 교육수준에서 신체적 요인은 교육수준이 높을수록 만족 요인이 증가하는 것으로 나타났으며, 수입에서는 고수입 집단이 신체적, 사회?교육적, 휴식적 요인이 높은 것으로 나타났다. 또한 연령은 높고 수입이 많은 집단에서 생활만족이 높게 나타났으며, 참여정도에 따른 여가만족에서는 참여기간이 증가할수록 사회?교육적, 환경적, 휴식적 요인이, 참여시간에서는 참여시간이 증가할수록 신체적, 사회?교육적, 환경적, 휴식적 요인이 높아지는 것으로 나타났다. 생활체육 테니스 참가자의 여가만족이 생활만족에 미치는 영향과 인과 관계에서는, 사회?교육적, 환경적 요인이 생활만족에 가장 많은 영향을 주는 것으로 나타났으며, 마지막으로 생활체육 테니스 참가자의 참여정도(기간, 빈도, 시간)에 따른 생활만족에서는 참여기간, 참여시간에서 유의한 차이가 있는 것으로 나타났다. 참여기간과 참여시간은 각각 기간과 시간이 증가할수록 생활만족이 높아지는 것으로 나타났다. 본 연구의 결과와 다수의 선행연구 결과들의 차이는 변인 및 요인의 다양성에서 비롯되는 것으로 사료되며, 참여정도와 생활만족의 관계를 설명하는 보다 많은 연구가 필요하고, 생활만족에 관련한 변인과 하위 요인을 정확히 측정하고 신뢰할 수 있는 도구와 일관성 있는 결과들이 지속적으로 제시되어야 한다. This study was to examine differences and relationship between life and leisure satisfaction of sports participants based on socio-demographic groups in order to broaden participation opportunities in tennis as well as to provide fundamental data for further studies. To achieve its main goal, 300 subjects of this study were selected among adults tennis participants over 20 at 10 tennis facilities located in Seoul in 2002 by means of multi-stage stratified cluster sampling method, and were analyzed factors of leisure satisfation and life satisfaction depends on degree of participation of tennis participants. The result shows that physical, socio-environmental, educational factors of male participants indicated higher than those of women. Older participants showed higher physical factor, and the aged group indicated high socio-educational, environmental, relax factors. As the educational level was higher, the satisfaction factor increased, and high income group showed high physical, socio-educational, relax factors. The age and high income group expressed high life satisfacton, and as participation period and time become longer, socio-educational, environmental, relax factors became higher. There was also cause and effect relationship between leisure and life satisfaction, and socio-educational, environmental factors were main factors. Lastly, life satisfaction was stastically different depends on degree of participation (period, frequency, time), and longer participation period and time lead to higher life satisfaction. However, this study and some previous studies are contradictory in some ways. It is considered that those conflicting results stem from various factors and variables, thus consistent insturments and reliable results should be created through further studies on degree of participation and life satisfaction.
가자(Terminalia chebula Retz)추출물의 항산화효과
장성준,이기동,김정숙,윤형식 慶北大學校農業科學技術硏究所 1992 慶北大農學誌 Vol.10 No.-
탈지 가자박으로 부터 free, soluble 및 insoluble bound phenolic acids를 추출하여 식용대두유 기질에서 항산화효과를 0.02%(w/w)의 BHA, BHT의 항산화 효과와 비교하고자 각 기질과 대조구를 60±1℃에서 35일간 저장하면서 매 7일 간격으로 과산화물가, TBA가를 측정하였다. BHA, BHT와 free, soluble 및 insoluble bound phenolic acids를 첨가한 시험구와 대조구의 과산화 물가는 21일의 경우 60, 30, 14, 11, 10, 100이었다. 같은 조건하에서 추출물의 TBA가는 0.150, 0.108, 0.073, 0.078, 0.185이었다. 이것으로 보아 phenolic acids는 식용대두유 기질에서 우수한 항산화력을 나타내었다. 분리확인된 phenolic acids는 p-coumaric acid, ferulic acid, phloroglucinol, pyrogallol, vanillic acid, caffeic acid으로 확인되었다. In this study, antioxidtive effectiveness of BHA, BHT at 0.02%(w/w) was compared with those of separated free phenolic acid, ester form and insoluble bound phenolic acid which were extracted from 50g of Terminalia chebula Retz by MeOH/aceton solvents. Antioxidative effectiveness was measured by peroxide values and TBA values for 7days, storaging respective substrates and contrast tube at 45±1℃ for 35days. Laboratory tubes was added by BHA, BHT, separated free, soluble and insoluble phenolic acid extracts and peroxide value of contrast tube after 21 day storage were 60, 30, 14, 11, 100. On the other hand, at the same conditions, TBA values of each antioxidants were 0.150, 0.108, 0.105, 0.073, 0.078, 0.185. This results remarkably appeared antioxidative effectiveness in meal soybean oil substrates. Phenolic acid separated and identificated were p-coumaric acid, Ferulic acid, Phloroglucinol, Pyrogallol, Vanillic acid and Caffeic acid.
Jang, Ho-Hee,Kim, Sun-Young,Park, Soo-Kwon,Jeon, Hye-Sook,Lee, Young-Mee,Jung, Ji-Hyun,Lee, Sun-Yong,Chae, Ho-Byoung,Jung, Young-Jun,Lee, Kyun-Oh,Lim, Chae-Oh,Chung, Woo-Sik,Bahk, Jeong-Dong,Yun, Dae- Plant molecular biology and biotechnology research 2005 Plant molecular biology and biotechnology research Vol.2005 No.
The H_(2)O_(2)-catabolizing peroxidase activity of human peroxiredoxin I (hPrxI) was previously shown to be regulated by phosphorylation of Thr^(90). Here, we show that hPrxI forms multiple oligomers with distinct secondary structures. HPrxI is a dual function protein, since it can behave either as a peroxidase or as a molecular chaperone. The effects of phosphorylation of hPrxI on its protein structure and dual functions were determined using site-directed mutagenesis, in which the phosphorylation site was substituted with aspartate to mimic the phosphorylated status of the protein (T90D-hPrxI). Phosphorylation of the protein induces significant changes in its protein structure from low molecular weight (MW) protein species to high MW protein complexes as well as its dual functions. In contrast to the wild type (WT)- and T90A-hPrxI, the T90D-hPrxI exhibited a markedly reduced peroxidase activity, but showed about sixfold higher chaperone activity than WT-hPrxI. ⓒ2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.