http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : ( Se-yun Kim ) (검색결과 2,077 건)
- 무료
- 기관 내 무료
- 유료
-
-
-
Park, Se Jin,Jeon, Hyo Sang,Cho, Jin Woo,Hwang, Yun Jeong,Park, Kyung Su,Shim, Hyeong Seop,Song, Jae Kyu,Cho, Yunae,Kim, Dong-Wook,Kim, Jihyun,Min, Byoung Koun American Chemical Society 2015 ACS APPLIED MATERIALS & INTERFACES Vol.7 No.49
<P>Significant enhancement of solution-processed CuInxGa1-x(Se,S)(2) (CIGSSe) thin-film solar cell performance was achieved by inducing a band gap gradient in the film thickness, which was triggered by the chalcogenization process. Specifically, after the preparation of an amorphous mixed oxide film of Cu, In, and Ga by a simple paste coating method chalcogenization under Se vapor, along with the flow of dilute H2S gas, resulted in the formation of CIGSSe films with graded composition distribution: S-rich top, In- and Se-rich middle, and Ga- and S-rich bottom. This uneven compositional distribution was confirmed to lead to a band gap gradient in the film, which may also be responsible for enhancement in the open circuit voltage and reduction in photocurrent loss, thus increasing the overall efficiency. The highest power conversion efficiency of 11.7% was achieved with J(sc) of 28.3 mA/cm(2), V-oc of 601 mV, and FF of 68.6%.</P>
-
-
김세호,나경윤 제주대학교 공과대학 첨단기술연구소 2004 尖端技術硏究所論文集 Vol.15 No.2
In recent years wind turbine technology has undergone the rapid development in response to the demands for increased use of renewable sources of energy. Using wind turbines for production of electrical energy requires reliable operation. The increased share of wind power in electrical system makes it necessary to have grid-friendly interfaces between the wind turbines and the grid in order to maintain power quality. Increasingly wind turbines are being connected into electricity distribution system. The grid-connected wind power stations have many impacts on power systems such as voltage variations, harmonics. The paper investigates the influences of grid-connected wind power generation system on substation bus voltage and power factor
-
초등학생에서 집단따돌림의 유병률과 이와 관련된 정신병리현상
김영신,고윤주,노주선,박민숙,손석한,서동향,김세주,최낙경,홍상의 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.5
연구목적 : 학교폭력의 가장 흔한 형태인 집단따돌림은 피해아동 및 가해아동 모두에서 다양한 행동, 정서 및 사회적 문제와 연관되어 있는 것으로 알려져 있다. 본 연구에서는 지역사회내의 초등학교 고학년 학생들을 대상으로 집단따돌림의 유병률과 집단따돌림과 관련되어 아동에게 나타나는 정신병리 현상에 대하여 조사하고자 한다. 방 법 : 안양지역의 두 초등학교에서 무선으로 선출된 두 학급의 4, 5, 6학년 학생들이 본 연구의 연구대상이었다. 학생들은 한국형 또래지명설문지(K-PNI)를 완성하였고, 교사 및 부모는 ADHD Rating Scale(ARS)과 Conners 척도를 완성하였으며 부모들은 추가로 아동행동조사표를 완성하였다. 통계방법으로는 기술적 통계, 다중회귀분석 및 다중로지스틱 회귀분석을 사용하였다. 결 과 : 총 532명의 학생들이 본 연구에 참여하였다. 집단딸돌림의 피해자, 가해자 및 피해자 겸 가해자의 유병률은 각각 48%, 45%, 30%로 나타났다. 심한 집단따돌림의 유병률은 2.1∼4.1% 사이였다. 집단따돌림의 피해아동와 피해자 겸 가해아동들은 교사와 부모에 의해 부주의하고 수동적이며 사회적으로 미성숙하고 공격성이 있는 것으로 평가되었으며 학년이 올라 갈수록 피해자가 되는 경향이 적은 것으로 나타났다. 가해 아동은 행동문제와 관련되어 있었으며 남아에게 많은 것으로 나타났다. 결 론 : 집단따돌림은 한국 초등학교 고학년 학생들 사이에서 매우 흔하게 일어나는 현상으로 보인다. 집단따돌림의 경험을 한 아동은 그렇지 않은 아동에 비해 더 많은 정신병리 현상을 보였다. 이러한 정신병리와 집단따돌림과의 인과관계를 밝히기 위해서는 집단따돌림을 경험한 아동에 대한 추적 조사가 필요할 것이다. Objective : School bullying, the most prevalent type of school violence, is Know related to various behavioral, emotional and social problems both in victims and per The purpose of the present study is to investigate the prevalence of school bullying psychopathology in a community sample of elementary school students. Method : Fourth to 6^th graders of two randomly selected classes in two elementary Anyang City participated in a cross-sectional study. Study subjects completed Nominating Inventory(K-PNI). Parents completed Korean-Child Behavior Checklist(KADHD Rating Scale(ARS) and Conners Scales for parents, and teachers completed Conners Scales for teachers. Descriptive statistics, multiple linear and logistic regress performed. Results : A Total of 532 students participated in this study. Prevalence of victims, and victim-perpetrators were 48%, 45%, and 30% respectively. Extreme victims and of school bullying ranged from 2.1∼4.1%. Inattention-passivity in teachers' Conn social immaturity or aggression in K-CBCL were positively associated with victims perpetrators, and grade was negatively related to school bullying. Conduct problem in Scale for teachers and emotional instability in K-CBCL, and male gender were positively with perpetrators. Conclusion : School bullying is very common in Korean children of elementary Those who had experienced school bullying, either as victims or as perpetrators, cantly more psychopathology than their counterparts. To clarify a causal relationship psychopathology and school bullying, a longitudinal follow-up study is suggested.
-
알코올에 의한 α-Tocopherol이 혈중 Creatine kinase 활성도에 미치는 영향
김연선,이상한,김창세,조만희 순천향의학연구소 1995 Journal of Soonchunhyang Medical Science Vol.1 No.2
This study was done in order to observe the effects of a-tocopherol and/or alcohol administration on the serum creatine concentration, creatine phosphokinase activity and CPK-isonzymes at each feeding day. The white Sprague-Dawley rats were classified with 4-groups : the 0.9% NaCl administration for the feeding days was group B(B1, B2 and B3), the 25% ethanol pretreated for the each 5 and 10 days and the 50% a-tocopherol for the 2 and 7 days administration was group C(Cl and C2), and the 50% a-tocopherol pretreated for the each ,10 and 16 days and 25% ethanol for the 2, 7 and 10 days administration was group D(D1, D2 and D3) The following results were obtained. 1. The serum creatine concentration was not significant. 2. The serum creatine activity was significantly increased in group B. The group C, and D was not significant. 3. The changes of electrophoresis pattern in serum CPK-isoezymes. CPK-BB and CPK-MB was significantly increased or decreased on the each feeding days, and however the CPK-MM was not significant.
-
Methexymethyl sulfide를 이용한 합성연구
김정순,고영관,김대광,윤세중 공주대학교 기초과학연구소 1992 論文集 Vol.30 No.1
For the preparation of broad range of substituted aryl derivatives from the bromophenyl methoxymethyl sulfide and the bromobenzyl methoxymethyl sulfide, various functional groups such as alkyl, ester and haloketone could be easily introduced in the aromatic methoxymethyl sulfides by treatment with various electrophiles. Substituted methoxymethyl phenyl sulfides were converted to the arenesulfonyl chlorides with chlorine in water-dichloromethane at 5∼10℃. And substituted benzyl methoxymethyl sulfides were also converted to the arylmethanesulfonyl chlorides with N-chlorosuccinimide in aqueous acetic acid, at 5∼10℃.
-
윤종선,김익환,신세균,심우경,이철희,신영철 韓國植物ㆍ人間ㆍ環境學會 1999 인간식물환경학회지 Vol.2 No.2
종의 棲息密度가 낮아지고 있는 하늘나리, 섬초롱, 자란 3종의 식물을 인위적으로 棲息地를 造成하기 위하여 국립공원 속리산 등산로변 標高 200m, 400m, 600m 지점에 150주식 종당 450주를 조직배양 및 분주에 의하여 육묘 된 묘를 이식하여 생존상태 및 棲息地 造成의 가능성을 2년에 걸쳐 검토한 결과는 다음과 같다. 1. 造成 棲息地의 토양의 理化學的 造成은 pH 5.2∼5.6, 유기물 함량 29∼54g/㎏, CEC 9.4∼11.5㎝ mol(+)/㎏으로 산성을 띠고 있었으며, 유기물 함량은 높은 편이었고, 염기치환용량은 낮았으나 비교적 우리나라 典型的 山地土壤의 理化學的 造成과 유사하였다. 2. 棲息地內 생장기간의 投光率은 標高 200m 지역은 10.8∼11.6%, 400m lw역은 10.8∼11.4%, 600m 지역은 11.0∼12.8%로 식재식물의 生長環境에 부족한 상태였다. 3. 식재 식물 수는 식재 후 활착율은 3종 모두 양호하였으나, 점차 감소되었으며, 특히 자란의 감소율이 높았다. 감소의 원인을 분석한 결과 하늘나리, 섬초롱, 자란 모두 굴취나 절취의 피해가 많았으며, 특히 자란은 凍害에 의한 枯死가 1년차 72∼86주, 2년 차에서 19∼35주로 조사도어 자연상태에서의 越冬은 어려운 것으로 나타났으며, 집중호우에 의한 流失도 감소의 한 원인이었다. 4. 식재식물의 생장상태는 불량하였는데 이는 投光量 부족으로 판단되어 棲息地造成時에는 錄陰期 投光量에 대한 사전 검토가 중요한 요인으로 나타났다. 5. 개화율은 섬초롱과 자란에서 높았으며 標高가 높을수록 개화기는 2∼4일 늦어지고 휴면기는 빨라지는 경향이었다. 식물 棲息地 造成時에는 造成 식물의 생장에 적합한 토양, 光環境 등을 고려한 위치 선정이 중요하며, 上層林에 의한 遮光으로 下層 초본식물 遷移速度가 빨라짐으로써 光環境 개선을 위한 上層林의 間伐, 周邊樹種의 更新이 요구된다. In order to make the artificial habitats of Lillium concolor, Campanula takesimana and Bletilla striata that the number of plant became sparse, 150 plants per species were transplanted at the region of 200m, 400m and 600m above sea level. And the growth of plants and the potential as habitats creation were analyzed. In the physical and chemical properties of soils in the there, soil pH was 5.2 to 5.6, organic matter content was 29 to 54g/㎏ and cation exchange capacity(CEC) was 9.4 to 11.5㎝ mol(+)/㎏. The transmittance rates of sunlight of the habitats during the growing periods were 10.8 to 11.6% in the 200m region, 10.8 to 11.4% in the 400m region and 11.0 to 12.8% in the 600m region. These transmittance rates were deficient for normal growth of plants. After the plants were transplanted, the survival rates of three species were high in common but the rates decreased gradually. Especially the decrease rate was high in the Bletilla striata. The causes of decrease were digging and cutting by climbers, sweeping asay by rainfall and freezing damage. Especially, the cold tolerance of Bletilla striata was weak in the natural condition. The growth of planted plants was poor, and it was assumed that the reason was shortage of sunlight transmittance. The flowering rates were high in the Campanula takesimana and Bletilla striata. And as the elevations were high, the flowering was later by 2 to 5 days but the dormancy was earlier. In the artificial making of plant habitats, the growth environment of plants have to be considered to choose the suitable region. And, because the habitats are shaded by the trees and bushes, the thinning of trees and the change of species are needs to improve the light transmission.
-
스콜라연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
