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Jadhav, A.P.,Thi Dinh, T.D.,Khan, S.,Lee, S.Y.,Park, J.K.,Park, S.W.,Oh, J.H.,Moon, B.K.,Jang, K.,Yi, S.S.,Kim, J.H.,Cho, S.H.,Jeong, J.H. Pergamon Press 2016 Materials research bulletin Vol.83 No.-
Precipitation and re-precipitation of metal ions has been carried out from original and supernatant solution producing Bi<SUP>3+</SUP> - Eu<SUP>3+</SUP> doped Y<SUB>2</SUB>O<SUB>3</SUB>:Eu<SUP>3+</SUP> and Eu<SUP>3+</SUP>/Tb<SUP>3+</SUP> doped Y<SUB>2</SUB>O<SUB>3</SUB>, respectively. Shorter reaction time is unable to consume all metal ions present in the solution which can be utilized through re-precipitation process. The doping of Bi<SUP>3+</SUP> - Eu<SUP>3+</SUP> in Y<SUB>2</SUB>O<SUB>3</SUB> helps to absorb maximum UV light. The activation of Y<SUB>2</SUB>O<SUB>3</SUB> matrix by Bi<SUP>3+</SUP> and Eu<SUP>3+</SUP> ions, together and separately, were studied considering the excitation energy transfer to the luminescence centers. The successful replacement of Y<SUP>3+</SUP> by RE<SUP>3+</SUP> ions can help for fine tuning of emission wavelength. Re-precipitation of supernatant solution by adding terbium precursor can successively produce uniform sized Tb<SUP>3+</SUP> doped Y<SUB>2</SUB>O<SUB>3</SUB>:Eu<SUP>3+</SUP>. The re-precipitation of the supernatant solution ensures maximum consumption of metal ions for higher product yield and possible fine tuning of emission wavelengths.
A Competitiveness Evaluation of the Wine Industry at Yalu River Valley in China
( Yi,M. Y. ),( S. Lee ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2019 강원 농업생명환경연구 Vol.31 No.1
The wine consumption market in China has been growing rapidly in recent years. The ‘Yalu River Valley’ strategy to promote the local wine industry was introduced in 2013 by the Tonghua City government. However, compared to large wine producing areas, wine produced in the Yalu River Valley has a small share of the market. The purpose of this study is to evaluate the competitiveness of the Yalu River Valley wine industry in China. This study used multicriteria decision making technique analytic hierarchy process methodology to identify each factor’s importance degree with three hierarchies and 31 critical factors. The survey was conducted with the help of 48 relevant experts. The results show that production factor condition is the most important category in the priority list, followed by domestic demand condition, structure and rivalry and related industry. This study would be helpful to give a strategy to policy makers for developing small wineries in China.
Yi, K.,Cheong, C.s.,Kim, J.,Kim, N.,Jeong, Y.J.,Cho, M. Universitetsforlaget ; Elsevier Science Ltd 2012 Lithos Vol.153 No.-
Phanerozoic granitoids are widespread in the Korean Peninsula and form a part of the East Asian Cordilleran-type granitoid belt extending from southeastern China to Far East Russia. Here we present SHRIMP zircon U-Pb ages and geochemical and Nd isotopic compositions of Late Paleozoic to Early Jurassic granitoid plutons in the northern Gyeongsang basin, southeastern Korea; namely the Jangsari, Yeongdeok, Yeonghae, and Satkatbong plutons. The granite and associated gabbroic rocks from the Jangsari pluton were coeval and respectively dated at 257.3+/-2.0Ma and 255.7+/-1.4Ma. This result represents the first finding of a Late Paleozoic pluton in South Korea. Three granite samples from the Yeongdeok pluton yielded a slightly younger age span ranging from 252.9+/-2.5Ma to 246.7+/-2.1Ma. Two diorite samples from the Yeonghae pluton gave much younger ages of 195.1+/-1.9Ma and 196.3+/-1.6Ma. An Early Jurassic age of 192.4+/-1.6Ma was also obtained from a diorite sample from the Satkatbong pluton. The mineral assemblage and Al<SUB>2</SUB>O<SUB>3</SUB>/(Na<SUB>2</SUB>O+K<SUB>2</SUB>O) versus Al<SUB>2</SUB>O<SUB>3</SUB>/(CaO+Na<SUB>2</SUB>O+K<SUB>2</SUB>O) relationship indicate that all the analyzed plutons are subduction zone granitoids. Enrichments in large-ion-lithophile-elements and depletions in high-field-strength-elements of these plutons are also concordant with geochemical characteristics typical for the subduction zone magma. The presence of Late Permian to Early Triassic arc system is in contrast with the conventional idea that the arc magmatism along the continental margin of the Korean Peninsula has commenced from Early Jurassic after the termination of Triassic collisional orogenesis. The ε<SUB>Nd</SUB>(t) values of the granitoid plutons are consistently positive (2.4-4.6), suggesting that crustal residence time of the basement beneath the Gyeongsang basin is relatively short. Moreover, the reevaluation of previously-published data reveals that geochemical compositions of the Yeongdeok pluton are compatible with those of high-silica adakites; La/Yb=37.5-114.6, Sr/Y=138.2-214.0, SiO<SUB>2</SUB>=62.9-72.0wt.%, Al<SUB>2</SUB>O<SUB>3</SUB>=15.5-17.0wt.%, Sr=562-1173ppm, MgO=0.4-1.6wt.%, Y=3-6ppm, Yb=0.18-0.45ppm, and Eu/Eu*=0.92-1.31. The occurrence of adakites in southeastern Korea, and presumably in the Hida belt of central-western Japan, is indicative of a hot subduction regime developing at least partly along the East Asian continental margin during the Permian-Triassic transition period.
남녀 대학생의 신체만족도, 자아존중감과 우울에 대한 비교연구
김나영,김민정,김진경,박민주,박민지,이다솜,이민경,이지영,전양지,정하은 이화여자대학교 간호과학대학 2010 이화간호학회지 Vol.- No.44
The purpose of this study was to know relationship among body image and self esteem, depression obtained from male and female. Also we wanted to know what is differences between male and female groups. We intended to provide basis materials for developing programs to increase body image, self esteem and to decrease depression at the same time. Object of our study were male and female who are in collage. There were 90 people in each group. We used frequency analysis to know general characteristics, and we use frequency analysis and descriptive statistic analysis to know question distribution. We studied relationship among body image and self esteem and depression with using Spearman Correlation and analysised the differences between male and female groups with using T-test. This is the result of our research. 1. ale show higher BCS and BET scores than women. Between male and female, self-esteem have no big differences. And female is more depressive than male. 2. he two elements that body image and depression are in inverse proportion to each other in both male and female university students. 3. The two elements that self-esteem and depression are in inverse proportion to each other in both male and female university students. 4. The two elements that body image and self-esteem are in inverse proportion to each other in both male and female university students. And male have high correlation between BCS and BET, BCS and self-esteem, self-esteem and depression tha female. On the other hand, female have high correlation between BET and self-esteem, BET and depression In short, both male and female have correlation between body image, self-esteem and depression. Especially, between self-esteem snd depression have high correlation. In body image, especially female have high correlation between BET and depression. Finally we found the fact that female is more sensitively react than male about appearance.
고관영,명노훈,하종성,이창수,최창권,최병용,허기영,김광수,김동수,장종훈,장윤철,김세환,오정민,하민정,박향자 울산과학대학 2000 연구논문집 Vol.27 No.1
본 연구는 자체 제작한 전체 패드가 부착된 드로잉 금형을 이용하여 SUS, 연강, AI, 6:4황동 판재를 드로잉 가공하여 생산된 제품의 특성을 자유드로잉 하여 얻은 제품의 특성과 비교 분석하였다. SUS 판재의 경우 제품에 발생하는 현상은 벽 주름, 구변주름, 수직 파단, 드로잉상처, 이어링이 발생하였으며 길이변화는 펀치어깨부분에서 가장 많이 늘어남을 볼 수 있었고 벽 주름 부분에 있어서 접혀진 부분은 상대적으로 적게 늘어남을 볼 수 있었다. 연강 판재는 SUS 판재에서 보여준 현상을 나타내었으나 SUS 판재에 비해 수직 파단은 적게 일어난 반면 이어링이 더 크게 일어났다. AI 판재의 경우 수직 파단은 일어나지 않았으나 플랜지 주름과 밑면터짐이 발생하였다. 6:4황동의 경우는 전체패드의 AI 판재 드로잉에서와 같이 밑면터짐과 플랜지 주름의 발생이 일어났다.