http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
장찬익,권순달,최낙준 서울교육대학교 2001 한국초등교육 Vol.13 No.1
This paper premises that the teacher's performance is different depending on the subject matter in teacher education. The objects of this paper are as follows. At first, this research is reviewed how curriculums of three type teachers education colleges - eleven national universities of education. K national university of education, E womans university - in korea is operating. Secondly, Teacher's performance is interviewed by 26 teachers in 9 elementary schools. They had studied subject matters in each other colleges and universities for elementary teachers. Data is analyzed by triangulations. The results showed that 11 national university of education demands high a grades for student in order to get the certification of teacher. Those of both teachers colleges of university is low. But pre-service subject matter education does not satisfy all of teachers. They assert that curriculums are changed not theory but practical. methods. This study appears that teachers are cultivated the knowledge and teaching method of subject matter in pre-service education.
식물에서 분리된 phenolic compound의 항암활성
이도익,조장현,이민원,홍순각 중앙대학교 약학연구소 1996 약학 논총 Vol.10 No.-
3,4'-dihydroxypropiophenone, a phenylpropanoid, purified from Betula platyphylla var. latifolia was evaluated on the antitumor activity. In vitro, the cytoxicity was determined by 0.4% trypan blue dye exclusion method. And the most sensitivity cell line was L5178Y(ED_50=0.96ug/ml). The ED_50 of 3, 4'-dihydroxypropiophenone against sarcoma-180, L-1210 were 8.77 and 2.69ug/ml respectively. As a result, 3, 4'-dihydroxypropiophenone was considered to show the antitumor activity.
체육고등학교 유도선수들의 일반적 특성에 따른 만족도 연구
박순진,윤익선,김태훈 龍仁大學校 武道硏究所 2002 武道硏究所誌 Vol.13 No.1
This study is to investigate and clarify Life and Athletic Satisfaction of Physical Education Highschool Judo Athletes, based on 12 Physical Education Highschool Judo teams that are registered on Korean Judo Federation of Korean Sports Council in 2002. Among the physical Education Highschool Judo teams, 3 male teams and 3 female teams with winning experience over 3 times for 2 years, 2000-2001 and 3 male teams and 3 female teams without winning experience during the same period, and the responses of the 216 persons were applied to analyze actually. This study brings the follow conclusions by using statistical analysis such as reliability analysis, t-test, one-way ANOVA, correlation analysis, regression analysis, etc. First, Life satisfaction in accordance with the background factors depends on school grades and athletic career significantly. Second, Athletic satisfaction in accordance with the background factors depends on athletic career. Third, Life satisfaction in accordance with the background factors shows a positive correlation in winning prize or not(r=.211*), school grades(r=.212*), and athletic career(r=.268*), and a negative correlation between genders(r=-.265*). Also, athletic satisfaction in accordance with the background factors shows a positive correlation in winning prize or not(r=.200*) and athletic career(r=.158*), and a negative correlation between genders(r=.-336*). Forth, In accordance with the background factors school grades(β=.123) and athletic career(β=.217) effect on life satisfaction and the former (β=.-102) and the latter (β=.200) on athletic satisfaction.
돈분과 톱밥의 혼합비율이 지렁이 생존에 미치는 영향 : Eisenia foetida
황보순,조익환,박창일,손장호 대구대학교 생명과학연구소 2002 생명과학연구 Vol.1 No.2
본 연구는 톱밥의 혼합비율을 달리한 돈분을 대상으로 부숙기간별 이화학적 변화를 측정하고 이를 바탕으로 생존율을 조사하여 가축분의 효율적인 vermicomposting의 기초자료로 이용하고자 실시하였다. 그 결과를 요약하면 다음과 같다. 부숙이 경과함에 따라 지렁이가 생존하기 시작하여 8주부터 A구(돈분 100%)를 포함한 모든 구에서 지렁이의 생존이 가능하였다. C/N비는 부숙이 경과함에 따라 낮아졌으며, 톱밥혼합 비율이 높을수록 C/N비가 유의하게 높아 톱밥첨가 40인 E구가 다른구 보다 유의하게 높았다(P<0.05). 지렁이가 생존하기 시작한 C/N비는 10.8~16.0으로 나타났다. 톱밥 혼합비율을 달리한 돈분의 pH 변화는 부숙이 경과함에 따라 점차 pH 7.5에 가까워지는 경향을 보였으며 지렁이가 생존하기 시작한 pH는 7.5~8.0으로 나타났다. Ec의 변화는 부숙 경과에 따라 거의 없었으며, 처리구간에서는 톱밥첨가가 많을수록 낮아졌으며 지렁이가 생존하기 시작한 Ec는 2.2~4.7mS/㎝으로 나타났다. This study was performed to investigate the effect of different mixture ratio of the sawdust and swine manure and to measure C/N ratio, ph, Ec of the ripening of that and investigate on survival of earthworm with that and to use to efficient vermicomposting of swine manure as basic information. The results are summarized as follows. According as ripening of different mixture ratio of the sawdust and swine manure, earthworm begins to exist and survival of earthworm is possible in all including A(swine manure 100%) since 8 weeks. According as ripening, C/N ratio became low and sawdust mixing ratio is high. C/N ratio is significantly higher in E(sawdust 40%) than A, B, C and D(P< 0.05). C/N ratio that earthworm begins to exist appeared by 10.8∼16.0. pH value change of looked tendency that approach to pH 7.5 gradually according as ripening. pH value that earthworm begins to exist appeared by 7.5∼8.0. Electrolytic conductivity became low sawdust addition ratio is high. Electrolytic conductivity that earthworm begins to exist appeared by 2.2∼4.7mS/㎝.
박순호,황해익 부산대학교 영유아보육연구소 2001 영유아보육연구 Vol.7 No.-
The study was designed to develop a model of the portfolios assessment of young child art activity and to suggest means for implementing it in the classroom. The portfolios assessment model was developed as follows : The first step was to consider current methods of assessing young child development and the assessment of art activities. The second step was to investigate teacher's opinions of assessing the young child art activities development. The third step was to develop a model of portfolios assessment, based on the results of these investigations focusing on the assessment of young child art activities. The fourth step was to provide some suggestions for the practical application of this assessment model. The results were as follows : First, it was work sampling that the teachers used the most popular assessment of young child art activites recently. Second, a total 40 kindergarten and child care center teachers participated in this study. Interviews were conducted to survey the situation and opinions regarding assessment of young child art-activities development. Even though most teachers spend a lot of time performing the assessment, they neglect recording it and applying the results. Third, the model of portfolios assessment includes : Anecdotal records, checklists, work samples, young child interviews, parent interviews, photographs, rating scales etc. The model of portfolios assessment integrated all the afore-mentioned methods of assessment. Fourth, the model of portfolios assessment was the application and reference of young child art activities. Studies of this model of portfolios assessment should be made continuously. The model of portfolios assessment is a tool teachers have available to them to directly and actively involve young children in their own learning. The value of portfolios as assessment instruments is demonstrated as young children reflect upon and analyze personal progress and development over time. Teachers who are concerned with young child assessment must utilize this assessment model in a long-term, systematic manner with integrated education.
황보순,조익환 대구대학교 환경기술연구소 2004 미래환경기술 Vol.1 No.1
본 실험에서는 우분과 볏짚의 혼합수준을 달리하여 지렁이 먹이로 이용하였을 때, 지렁이 생육과 증식에 미치는 영향과 분립의 생산량 및 화학적 조성을 조사하여 우분의 효율적인 Vermicomposting의 기초자료로 이용하고자 실시하였다. 그 결과를 요약하면 다음과 같다. 먹이의 C/N율은 20.4∼28.2로 볏짚 수준이 증가함에 따라 C/N율도 높아졌으며 실험기간 동안 지렁이의 생존율은 98.4∼99.2%로 나타났다. 산자수는 볏짚을 30과 40% 혼합한 구에서 각각 868와 906 마리로 우분 100%구의 769 마리보다는 유의하게 높게 나타났다 (P<0.05). 산자중은 8∼11.8g으로 볏짚 혼합 수준이 높을수록 유의하게 높아져 볏짚 40% 혼합구가 가장 높았다 (P<0.05). 분립생산은 볏짚 혼합 수준이 높을수록 낮게 나타났으며 소화량은 이와는 반대로 볏짚 혼합 수준이 높을수록 유의있게 높게 나타났다. This study was conducted to develop efficient vermicomposting using of different mixture ratio of the rice straw and cow manure by feeding these to earthworms and then by studying the growth and reproductive efficiency of earthworms, and the chemical composition of worm cast and its production. The results are summarized as follows. C/N ratio of feed was 20.4∼28.2 and it increased according to the higher proportion of rice straw and survival of earthworm was 98.4∼99.2%. Number of young worms were significantly higher in 30 and 40% addition of rice straw (number of 868 and 906) than number of 769 of real cow manure treatment (P<0.05). Fresh weight of young worms was 8∼11.8g and it was significantly higher in 40% addition of rice straw than other treatments (P<0.05). The cast production of earthworm was in the tendency of becoming higher according to higher ratio of rice straw but digested matter were significantly higher in 10∼40% addition of rice straw than real cow manure treatment (P<0.05).
임신중 뇌동맥류의 외과적 치료 : 증례보고 A Case Report
이익모,김상진,박순필,도종웅,주양자 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.1
A multiparous 28-year-old woman, suffering ruptured intracranial aneurysm during pregnancy is presented. Clipping of the aneurysm was performed in 32 weeks of gestational age. Three weeks after operation, she delivered vaginally without complication. Delivery may be managed according to obstetrical indication following surgical correction of the aneurysm. The authors reviewed the literature, and discussed the neurosurgical and obstetric management of such patients.
L.P.E에 의한 Al_xGa_(1-x)As 에피층의 성장 조건과 불순물 주입 효과
이해익,박순규 又石大學校 1994 論文集 Vol.16 No.-
GaAs and AlGeAs epitaxial layers were grown on semi-insulating GaAs substrate by liquid phase epitaxy. We tried to find the best growing condition for high quality GaAsepitaxial layers by measuring the electrical properties using C-V method, Hall method and DLTS. Carrier concentration of undoped GaAs epitaxial layer, grown using the Ga+GaAs solution annealed at 800℃ in hydrogen atmosphere for 24 hours, showed the best properties. The carrier concentration is 4.0×10 exp (15)cm^-3 and the mobiliy is 4,405cm^2/V-sec. By DLTS, we observed the electron trap E_1(E_c-0.56eV, 2.3×10 exp (-18)cm^2) in undoped GaAs layers and Te-doped GaAs layers, the electron traps E_2(E_c-0.27eV, 5.0×10 exp (-13)㎝) and E_3(E_c-0.67eV, 6.0×10 exp (-17)cm^2) in Te-doped Al_0 _34Ga_0 _46As layers. We observed the hole traps H_1(E_v+0.45eV, 1.7×10 exp (-20)cm^2), H_2(E_v+0.35eV, 6.2×10 exp (-21)cm^2) and H_3(Ev+0.50eV, 1.6×10 exp (-19)cm^2) in p-type Mg-doped AIGaAs samples. We think, H_3 is Mg related hole trap.
Single Stage 역률 보상을 위한 ZVT-FB AC/DC 컨버터
권순걸,송두익 慶南大學校 附設 工業技術硏究所 1996 硏究論文集 Vol.14 No.1
분포 전력 시스템에서 Single Stage 역률 보상을 위한 ZVT 풀 브리지 AC/DC 컨버터가 제안되었다. 본 논문은 종래의 Two Stage 방식과 비교하여 하나의 전력단 손실을 줄일 수 있다. 간단한 보조 회로는 부가적인 전압과 전류 스트레스와 PWM 성능의 저하 없이 모든 주디바이스에 영전압 스위칭(ZVS)을 가능하게 한다. 제안된 AC/DC 컨버터는 입력 역률 보상과 하나의 전력단으로 110~220VAC전원으로 부터 300VDC로 직접 변환을 한다. 제안된 컨버터의 동작 원리, 해석, 제어를 설명하였고, 1.5kW 전력에서 컴퓨터 시뮬레이션을 통하여 제안된 회로의 이론적인 파형을 소개하였다. A zero-voltage-transition (ZVT) full bridge(FB) AC/DC converter for single stage power factor correction (PFC) in distributed power system is proposed. A simple auxiliary circuit provides zero-voltage-switching (ZVS) condition to all semiconductor devices without imposing additional voltage and current stress and loss of PWM capability. The proposed AC/DC converter provides both of input power factor correction and direct conversion from 110~220VAC line to 300VDC bus with single power stage. Operational principle, analysis, control of the proposed converter together with the computer simulation of 1.5kW prototype are presented.