관상동맥 스텐트 내 재협착의 발생에 미치는 임상적 관동맥 조영술적 요인들

윤혁준,김기식,박형섭,이영수,현대우,한성욱,허승호,김윤년,김권배,박남희,원경숙 대한순환기학회 2003 Korean Circulation Journal Vol.33 No.12

불리언 질의 재구성에서 의사결정나무의 학습 성능 감도 분석

윤정미,김남호,권영식 한국경영과학회 1998 한국경영과학회지 Vol.23 No.4

One of the difficulties in using the current Boolean-based information retrieval systems is that it is hard for a user, especially a novice, to formulate an effective Boolean query. One solution to this problem is to let the system formulate a query for a user from his relevance feedback documents. In this research, an intelligent query reformulation mechanism based on ID3 is proposed and the sensitivity of its retrieval effectiveness, i.e., recall, precision, and E-measure, to various input settings is analyzed. The parameters in the input settings is the number of relevant documents. Experiments conducted on the test set of Medlars revealed that the effectiveness of the proposed system is in fact sensitive to the number of the initial relevant documents. The case with two or more initial relevant documents outperformed the case with on initial relevant document with statistical significances. It is our conclusion that formulation of an effective query in the proposed system requires at least two relevant documents in its initial input set.

汚染 鍾類別에 對한 洗劑의 洗濯性 考察

南潤子,權明淑 慶熙大學校 1994 論文集 Vol.23 No.-

The purpose of this study is to analyze the dry-cleaning synthetic detergent for home use sold in Korea and to investigate the release of various stain by repeated washing cycles. The materials used for this investigation were five kinds of dry cleaning syn-det for home use commercially available in market. The fabrics used were two kinds of fabrics (Silk: Beige, Red, Blue/Wool : Beige, Black, Navy) The stains used were ketchup, oil, coffee mixed with creamer and mayonnaise. The results of this study indicate as follows 1. Surfactant contents were 25%-47% and the Korean dry cleaning syn-det for home use had more surfactant content than foreign ones. 2. The five kinds of dry cleaning syn-det for home using and water were superior to petroleum detergent in stain release rate for ketchup. 3. The five kinds of dry cleaning syn-det for home use, water and petroleum detergent had no difference in stain release rate for mayonnaise. 4. Petroleum detergent was superior to five kind of dry cleaning syn-det for home using and water in oil release. 5. The five kinds of dry cleaning syn-det for home using and water was superior to petroleum detergent in the stain release rate for coffee mixed with creamer.

실내사무환경의 환경성담배연기(ETS)의 지표물질에 관한 연구

하권철,백남원,박동욱,윤충식,김원,최상준,박지영,최인자,김신범,강태선 한국산업위생학회 2003 한국산업보건학회지 Vol.13 No.2

The purpose of this research is to evaluate indoor office environment using the concentrations of nicotine, 3-enthenyl-pyridine(3-EP), and respirable suspended particulate(RSP), which are indicators for environmental tobacco smoke(ETS) and the correlations between indicators and environmental conditions(smoking density, smoking index). The mean air charge per hour (ACH) in smoking rooms was 10.4 and most of the smoking rooms showed non-compliance withe ASHRAE standard value except only one smoking rooms. The concentrations of RSP, 3-EP, nicotine showed log=normal distributions, and became different statistically depending on smoking condition(p〈0.01). The geometric mean concentration of RSP in smoking room was 441.7 ug/㎡ that is far exceeded environmental standard(150 ug/㎡). This implies that fine particulate in smoking room should be carefully controlled considering smoking density and ventilation fate. The mean concentrations of nicotine and 3-EP were 93.4 ug/㎥, respectively. The correlation coefficients between RSP and SI, 3-EP and SI, and Nicotine and SI were 0.67, 0.84 and 0.74, respectively. The correlation coefficient between nicotine and 3-EP, nicotine and RSP, and RSP and 3-EP were 0.76,0.78 and 0.57 respectively.

고밀도 유도결합 플라즈마 시뮬레이터의 GUI 및 Post Processor 개발

남경진, 김용일, 권득철, 윤남식 충북대학교 컴퓨터정보통신연구소 2007 컴퓨터정보통신연구 Vol.15 No.2

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대학생의 노인에 대한 태도에 관한 연구

이영희,권미경,김남선,김혜원,최미경,이규은,홍윤미 關東大學校 醫科大學 醫科學硏究所 2003 關東醫大學術誌 Vol.7 No.1

The purpose of this study is to identify the perception, the future and images, and prejudice toward old people. And to examine difference the group of gerontological education (educated group) with the non-educated group. 189 students in K university were participated in this study. The educated group was composed 101 students who enrolled liberal arts course that learned this title. Data were collected from May to June, 2002. The results are as follows; 1) Many students perceived the elderly that was started 60~64 years. 2) The perception, the future and images, and prejudice of both groups were some positively. 3) Each variables were not significantly difference. But the mean level of the educated group were more higher. 4) The educated group was found significantly related to the perception and prejudice(r=.303, p=.002). The non-educated group was found significantly related to the perception and the future and image(r=.421, p=.000), the perception and prejudice(r=.321, p=.003), the future, image and prejudice(r=.272, p=.012).

DC방전에 대한 전류 및 전압 조건에서 1차원 전산모사

김희정,김형용,권득철,윤남식 충북대학교 컴퓨터정보통신 연구소 2006 컴퓨터정보통신연구 Vol.14 No.1

여러 그룹들의 연구 결과로서 DC 방전 전산모사를 위한 여러 가지 수치해석적 방법들이 보고되어 왔다. 대부분의 방법들은 전극에 전압을 경계 조건으로 가정하고 전류를 구하는 방법인데, 때로는 전류값을 조건으로 주고 전극의 전압이 결정되는 방법이 필요한 경우도 있다. 본 연구에서는 전류값이 조건으로 주어진 경우에 전극의 전압이 결정되는 방법을 적용했으며, 1차원 전산모사를 통해 두 가지 방법에 의한 결과를 비교하였다. Various numerical simulation algorithms for simulating DC discharge were reported from many research groups. Most of reported methods uses terminal electrode voltage as a boundary condition to obtain current density. However, in some case, we need to obtain terminal voltage from boundary condition of current. In this paper, the method which obtain voltage under current condition is applied, and we compared the results of two methods through one-dimensional simulations.

VTK를 이용한 시각화 프로그램의 개발

이원기, 김용일, 권득철, 윤남식 충북대학교 컴퓨터정보통신연구소 2008 컴퓨터정보통신연구 Vol.16 No.1

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콩나물蛋白質의 營養學的 硏究

梁且範,文南順,尹錫權 漢陽大學校 師範大學 1981 論文集 Vol.- No.1

Nutritional evalution of proteins from soybean and soybean sprout and effect of methionine supplement to soybean sprout was studied by feeding albino rat. Sprague-Dawley strain of albino rats fed for 15 days with 5% (Group 1) and 10% (Group 2) level of protein from soybean, 10%(Group 3), 15% (Group 4) and 20%(Group 5) level of protein from soybean sprout, methionine supplement to soybean sprout (Group 6) and 10% level of protein form casein as a reference (Group 7). The results are as follows 1. Body weight gain was greater in soybean than soybean sprout in same protein level. Methionine supplementation increased weight gain significantly compared to soybean sprout alone. 2. By increasing protein level of soybean sprout, weight gain was increased significantly. 3. The more rat gained weight, the more rat in take food and there was significant correlationship between weight gain and food intake. 4. Protein intake was related to weight gain and there was significant positive correlationship between them. 5. PER was increased from 1.061 to 1.962 by adding methionine to soybean sprout, and PER increment was low by increasing the level of protein from soybean sprout in diet. There are no correlationship between PER and weight gain. 6. By adding methionine to soybean sprout, chemical score was increased. Chemical score showed significant positive correlationship with PER but not with weight gain. EAAI and RI was positively correlated significantly with PER.

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.