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현행 중등학교 과학 실험 , 실습 교육 실태 조사 및 그 운영 진단 (Ⅱ) : 고등학교 과학 실험 , 실습 교육을 중심으로
김영호,이윤종,정원우,강용희,양승영,윤성효,안병호,윤일희,권용주,임성규,오철한,기우항,전명남,김중욱 한국과학교육학회 1998 한국과학교육학회지 Vol.18 No.3
본 연구는 96년도에 실시한 우리 나라 중학교 과학 실험·실습 교육의 실태 조사 연구에 따른 계속 연구의 일환으로 고등학교 과학 실험·실습 교육의 실태를 조사하기 위한 것이다. 연구내용은 고등학교 과학 교과서의 분석, 실험·실습 실시 현황 분석, 현행 실험·실습 교육의 문제점 분석, 현행 학교 구성원들의 실험·실습 교육 운영 실태 조사 및 현행 실험·실습 교육의 개선을 위한 연구과제 도출을 주요 연구내용으로 다루었다. 연구방법은 전국의 고등학교 80개교를 대상으로 이들 학교의 학생 1,977명, 교사 165명, 학교장 80명에게 적용하였다. 본 연구에서 밝혀진 결과를 중심으로 우리 나라 고등학교 과학 실험 실습 교육의 정상화를 위한 실험 내적인 연구과제를 제시하면 다음과 같다. (1)교재 개발에 대한 연구, (2)실험 킷트 개발에 대한 연구, (3)교사교육 및 재교육 프로그램 개발에 대한 연구, (4)교실 밖 실험·실습 활동 프로그램 개발에 대한 연구, (5)과학 실험·실습 소재의 개발에 대한 연구. This study was accomplished to analysis and survey on the experimental and practical science education of high school in korea for the consecutive study of the an analysis and survey on the experimental and practical science education of middle school in korea(Lee, Yoon-Jong et al., 1997). The status of facilities, management for the experiment, practices, teaching methods in high schools have been investigated. The present status and reasonable management of the high school science education have been grasped from the questionaires. To do this 165 high school science teachers, 1977 students and 80 principals of high schools in Korea are administered questionaires of Science Education Research Institute of Kyungpook National University(1997). The results of this study are as follows : The reasonable management for experiments and practices of science education were scanty in the high school around the urban and rural school owing to the shortage of facilities and equipments, crowded class, excessive class works for teacher, excessive contents of present textbooks and insufficiency of the administrative supports etc. The current teaching method of high school science has emphasized knowledge. This fact does not satisfy the objective of learning due to lack of the teaching method. Desirable directions for the improvement of present status of high school science education were proposed in this paper.
정원우,이윤종,강용희,윤일희,이우붕,손종경,김중욱,강동진,권용주 慶北大學校 師範大學 科學敎育硏究所 1999 科學敎育硏究誌 Vol.23 No.-
The purpose of this study is to investigate the status of the experimental and practical education in high school general science. The present status and reasonable management of the experimental and practical education in high school general science were evaluated by the questionaires. To do this, 146 science teachers in Korea are administered questionaires. The frequency of the experimental and practical items in the seven kind of general science text books were investigated. The problems and the reasonable management for experimental and practical education were proposed in this paper.
다수의 냉동시스템에 의한 저온 저장고의 에너지 성능평가
강동언,김성만,운종호,이의준,박영하,현명택 濟州大學校 産業技術硏究所 2000 산업기술연구소논문집 Vol.11 No.1
The cool storage system(CSS) is a specific building that is required only cooling load without heating during the whole year. CSS uses a electric energy which is very expensive and is required much amount of energy due to temperature differences between interior and ambient temperatures. The purpose of this study is to assess the energy performance of the multi-unit cooler operating control system. For the prediction of its performance, two types of test (KIER). First cell is equiped with one .are installed a t Korea Institute of Energy Research large unit cooler. and second cell consists of two small unit coolers. According to the results of experiments using these cells. the multi-unit cooler operating control system is found to be effective in energy saving and beneficial for storage due to much less deviation of temperature.
강동구,이준상,윤재호,장원철,조영일,송종호,전혜정 건국대학교 의과학연구소 2004 건국의과학학술지 Vol.13 No.-
The mesenteric infarction, as a abdominal disease which show acute abdominal pain and almost need to emergency operation, has very high mortality. This mesenteric infarction has been reported very rarely. Also specific clinical manifestations are not clear, therefore initial diagnosis can be missed easily so that patients usually miss their opportunities for adequate treatment. Especially CAPD patients have high mortality because of their rareness and having similar symptoms like CAPD peritonitis. The authors report that the mesenteric infarction was miss-diagnosed to the CAF'D peritonitis with unspecific symptoms.
강상길,이우동,윤용화,김종태 慶山大學校 基礎科學硏究所 1998 基礎科學 Vol.2 No.1
본 논문의 목적은 선형 스무딩 스플라인에 대한 단순하고 구체화된 형태를 제안하고, 구체화된 선형 스무딩 스플라인 형태를 통하여 스무딩 스플라인의 특성을 이해하고는 어떻게 비모수 함수 추정량의 도구로서 사용될 수 있는지를 보인다. 또한 예제를 통하여 다른 비모수적 추정량들과 비교하였다. In this paper, we give simple and closed form of linear smoothing spline. Through the form, we understand the characteristics of smoothing spline, and show that how the smoothing spline can be used as a tool for estimator of nonparametric functin. And an example is given for comparison of our esttimator with another nonparametric estimators.
임의 형상의 개수로에서의 복잡한 흐름에 대한 고정도 수치해석
윤종성,강인식,안성욱,강주복 釜山大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.50 No.-
본 연구의 목적은 일반곡선좌표계에서의 St. Venant 방정식을 MacCormack 차분법으로 처리한 2차원 부정류 모델을 개발함과 동시에 수리실험결과를 통해 흐름의 메카니즘을 파악하고 개발한 모델의 적합성 및 적용성을 검증한다. 본 수치모델이 상·살가 혼재하는 2차원 흐름을 잘 재현하고 있다고 생각되므로 본 수치모델은 낙차공동의 설치에 의한 급변 흐름의 유동을 표현하는데 유용할 것으로 생각된다. The purpose of this is to develop a numerical model of two-dimensional unsteady flow, which is composed of St. Venant equation on the general curve-linear coordinates by MacComack's scheme. First, this study comprehends the flow mechanism through the results of hydraulic experiments. Second, it verifies and feasibility of the present numerical model. The numerical model developed by this study regenerated well a coexisting sub-and super-critical two dimensional flow. Therefore, this model will be useful to express suddenly changed flow by hydraulic structures.
강신몽,이원태,고영창,최상규,김윤희,이홍석,서재관,윤중진,이혜경,최득린,김종열,윤창육,변명식,이장홍 大韓法醫學會 1991 대한법의학회지 Vol.15 No.2
Individual identification is an important part in medicolegal field especially in mass disaster. At July, 27, 1989, KAL KE-803 was crashed on landing at Tripoli International Airport, Liba. The plane was caught in fire and sixty eight Koreans were sacrified. The majority of victims were severely charred and injured. The authors examed all dead bodies and successfully identified all the cases through visual, anthropological, odontological, radiological and pathological methods including fingerprint and blood typing.
인지질말과 콜레스테롤을 포함한 인지질막의 수용액에서의 산화반응 속도에 관한 연구
康順姬,朴鐘倫,金健,盧貞銀 梨花女子大學校 韓國生活科學硏究院 1988 韓國生活科學硏究院 論叢 Vol.42 No.-
생체막의 중요 성분중의 하나인 지질의 산화반응에 대한 연구로 모델 생체막인 인지질 이중층막을 제조한 후 pH 7.5 완충용액에서 KMnO_4로 산화시킬 때의 속도는 근사 일차 속도식으로 나타났다. PC 이중층막의 산화반응 속도 상수를 25℃에서 40℃ 온도 구간에서 얻어낸 결과 급격한 속도 상승 증가 현상이 PC 이중층막의 상전이 온도 구간에서 관측되었다. 그리고 PC에 콜레스테롤 10mol% 포함한 혼합 이중층막의 산화 속도 상수는 PC 이중층막의 산화속도 상수보다 모든 온도구간에서 크게 나타났다. The kinetics of oxidation of phosphatidyl choline(PC)and PC-cholesterol-reconstituted vesicle on water has been studied at 20°, 25°, 30°, 35°, and 40℃. The oxidation was initiated by KMnO_4 in pH 7.5 Tris-buffer aqueous solution and the product was measured by UV absorption at 230nm. The kinetics of oxidation of PC-vesicle and PC-cholesterol-reconstituted vesicle by KMnO_4 was pseudo-first order reaction. The oxidationof PC-cholesterol reconstituted vesicle was faster than that of PC vesicle. The highest difference of rate constants of PC vesicle was observed in the range of the phase transition temperature (35∼40℃) of PC-vesicle.
다수의 냉동시스템에 의한 저온 저장고의 에너지 성능평가
김성만,윤종호,박영하,이의준,강동언,현명택 제주대학교 산업기술연구소 2000 尖端技術硏究所論文集 Vol.11 No.1
The cool storage system(CSS) is a specific building that is required only cooling load without heating during the whole year. CSS uses a electric energy which is very expensive and is required much amount of energy due to temperature differences between interior and ambient temperatures. The purpose of this study is to assess the energy performance of the multi-unit cooler operating control system. For the prediction of its performance, two types of test cell are installed at Korea Institute of Energy Research (KIER). First cell is equiped with one large unit cooler, and second cell consists of two small unit coolers. According to the results of experiments using these cells, the multi-unit cooler operating control system is found to be effective in energy saving and beneficial for storage due to much less deviation of temperature.