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      • 開發制限區域制度(Green Belt)의 問題點과 合理的인 利用方案에 관한 硏究

        李啓鶴,金在國,金昌炫 호남대학교산업기술연구소 1994 산업기술연구논문집 Vol.1 No.-

        1970年 이래 우리나라의 急速한 經濟成長은 都市化와 産業化를 수반하였고 結果的으로 都市로의 人口集中과 숱한 都市問題를 야기시켰으며, 이러한 問題를 合理的으로 대처하기 위하여 政府는 지난 20여년에 걸쳐 英國에서 처음으로 實施했던 Green Belt制度를 採擇했다. 우리나라의 Green Belt制度는 1971년 7월 30일을 기하여 서울을 비롯해서 全國 13個 主要都市에서 처음으로 實施하였다. 本 論文에서는 우리나라에서 처음 Green Belt設定으로 말미암아 거기에 수반된 숱한 問題點에 대하여 이를 各 側面에서 檢討·分析하고 나아가 管理面에서 發生한 여러 가지 問題를 解消하기 위한 合理的인 利用方案을 提示하였다. 따라서 「制限된 國土資源의 效率的인 利用」이라는 觀點에서 Green Belt의 合理的인 利用方案이 講究되어야 할 것이다. Rapid economic growth of Korea since 1970's has accompanied urbanization and industrialization, resulting over population, an urban problem. To cope with this problem effectively, government has being adopted Green Belt policy originated in Great Britain in the past 20years. Green Belt areas were for the first time established in 13 major cities including Seoul, on July 30 1971. This paper aimes to present rational plan, countermeasures and management problems, resulting from the establishment of Green Belt, of which several analysis were made in all it's aspects. Therefore, we should consider a counter plan and rational utilization method of Green Belt in a point of view of national land use.

      • KCI등재

        성별 및 수준별 10학년 학생들의 과학 성취도 분석

        이병국,강용희,유계화 慶北大學校 科學敎育硏究所 2004 科學敎育硏究誌 Vol.28 No.-

        The purpose of this study is to examine the differences of science achievement by gender and by level of academic achievement. The subjects are consisted of 211 male and 212 female 10th graders in Daegu Metropolitan City and are also divided into three groups: low-, average-, and high-academic achievement level. All kinds of examinations which the subjects had taken during 2003 academic year were analyzed (e.g., the regular, trial, entrance diagnostic evaluation and formative examinations). The results indicate that statistically significant differences exist on the scores between male and female students. In general, the scores of female students (both low- and average-academic achievement level) are higher than male students. However, the scores for male students who had high level of academic achievement are higher than those of female students who had high level of academic achievement. Specifically, the scores of the regular examinations for female students are higher than those of male student. However, female students have no higher scores in the trial examinations than male students compared to the other examinations. This corresponds to Kimball(1989)'s hypothesis that female students are poor at the external examinations. In addition, the variation of scores is very steep in the entrance diagnostic evaluation and formative tests compared to regular and trial examinations. It seems that the achievement on tests does not determined by gender, however, the students' state of seriousness related to the tests. Additional analysis reveals that male students have made weaker achievement on scores of biology in the regular and trial examinations. Female students who had high-academic achievement level have made higher scores on the regular examination. In general, it seems that males had been more affirmative than females in the attitude related scientific subjects. However, there is no significant correlation between scientific attitude and science achievement. Based on the results of this study, there are no gender differences in the attitude for learning science. It appears that students who had high-academic achievement level are tended to have more positive attitude toward studying science.

      • KCI등재후보

        빌딩 보안 네트워크상의 정보폭주 방지를 위한 분류 알고리즘에 관한 연구

        김계국(Kye-Kook Kim),서창옥(Chang-Ok Seo) 한국컴퓨터정보학회 2005 韓國컴퓨터情報學會論文誌 Vol.10 No.5

        출입 보안 시스템에서 과다한 이벤트 발생으로 인해 네트워크가 마비되는 경우가 종종 발생된다. 이때 이벤트 발생 원인을 분석하고 이를 대처하기 위해서는 많은 시간이 소요되며 그 시간동안 ACU와 출입보안 서버와의 연결이 끊어지게 되어 출입 현황 및 출입자 정보의 갱신 등을 실시간으로 처리할 수 없게 된다. 본 논문에서는 이벤트에 의한 정보폭주를 방지하기 위하여 분류알고리즘을 제안하였다. The whole network system is paralyzed due to excess event of security server once in a while. If that happens, We have to analyze the cause of events, the time will require when we deal with a matter. All the while, ACU(ACCESS CONTROL UNIT) and security server are off, We can not treat about information retrieval of people who come to building with real time. In this paper, we suggested classification algorithm in order to prevent of information explosion.

      • KCI등재후보

        Enzyme - Linked Immunosorbent Assay 를 이용한 Plasminogen Activator Inhibitor - 1 ( PAI - 1 ) 의 측정법 개발과 심부정맥 혈전중 환자에서의 변동에 관한 연구

        박선양(Seon Yang Park),계경채(Kyung Chae Kye),김병국(Byoung Kook Kim),김노경(Noe Kyeong Kim),이문호(Moon Ho Lee),이규섭(Kye Sup Lee),박문규(Moon Kye Park),박근조(Keun Jo Park) 대한내과학회 1989 대한내과학회지 Vol.36 No.2

        N/A It has been suggested that impaired fibrinolysis plays a role in the development of deep vein thrombosis. The net fibrinolytic activity of blood is dependent on the sum of different types of plasminogen activators (PAs) and plasminogen activator inhibitors (PAIs). Therefore, assessment of each component of the fibrinolytic system is important in order to understand the underlying basis of thrombotic disorders. Certain pathological conditions may exhibit elevated plasma PAI which may inactivate endogenous PA by forming PA-PAI complexes. These enzymatically inactive complexes will not be detected by most functional assays. As PAs released into the circulation are captured within minutes by the excess of PAIs, it is reasonable to assume that PAIs may play an important role in regulating the activity of PAs, and hence the net fibrinolytic activity of the blood. Among the different forms of PAIs, PAI-1 synthesizd and secreted by the endothelial cells and found in the platelets has been suggested to play a major role in the regulation of fibrinolytic activity of the blood. For these reasons, we developed an enzyme-linked immunosorbent assay specific of human PAI-1 and measured its plasma levels in normal Korean subjects and in patients with deep vein thrmbosis. 1) Our ELISA for PAI-l measured both the free PAI-1 and u-PA-PAI-1 complexes. 2) The PAI-1 concentration of our PAI-1 standard, a conditioned medium of cultured human umbilical vein endothelial cells, was 257 ng/ml. 3) The PAI-1 concentrations of EDTA plasma in 16 normal Korean subjects ranged from 0-12,8 ng/ ml (4. 8+ 3.4 ng/ml). 4) The plasma PAI-1 levels in 13 patients with deep vein thrombosis were elevated to 2.8-38.4 ng/ml (16.6+ 9.8 ng/ml). This difference was statistically significant when compared to normal subjects (p<0.001). 5) With a cut-off value of 15.0 ng/ml (up to 3 SD from the mean) for normal plasma PAI-1 concentrations, 6 of the 13 patients (46.2%) with deep vein thrombosis were found to have elevated PAI-1 levels in their plasma, while all the normal subjects had their plasma PAI-1 levels in the normal range.

      • KCI등재
      • KCI등재

        잉크젯 헤드의 오작동 검출 방법 개발

        권계시(Kye-Si Kwon),고정국(Jung-Kook Go),김진원(Jin-Won Kim),김동수(Dong-soo Kim) 대한기계학회 2010 大韓機械學會論文集A Vol.34 No.10

        생산 장비로서 잉크젯 기술의 신뢰성을 증대 시키기 위하여 잉크젯 헤드의 작동 상태를 모니터링하고 이상 유무를 즉시 발견 할 수 있는 소프트웨어 및 하드웨어를 개발 하였다. 잉크젯 헤드의 작동 상태의 측정을 위하여 잉크젯 헤드의 피에조 전기 신호를 사용하였다. 이를 위하여 피에조의 변형량을 간접적으로 측정 할 수 있는 회로를 개발 하였고, 측정된 전기 신호를 사용하여 작동의 불량 여부를 판단 할 수 있도록 소프트웨어 알고리즘을 개발하였다. 또한 다중 노즐 헤드에 적용이 가능하도록 소프트웨어 개발 및 시스템 통합을 수행하였다. For the reliable use of inkjet technology as patterning tools, the jetting of the inkjet dispenser needs to be monitored for real-time detection of any malfunction. We present a self-sensing circuit that can be used to detect jetting failure by measuring electrical signals only. In addition, practical problems involved in the monitoring of inkjets in multinozzle printheads are discussed. In the study, software was developed and presented to demonstrate the feasibility of the proposed method for detecting inkjet jetting failure in a printing system.

      • KCI등재

        전자 인쇄를 위한 잉크젯 프린팅 시스템 개발

        권계시(Kye-Si Kwon),고정국(Jung-Kook Go),김진원(Jin-Won Kim) 대한기계학회 2010 大韓機械學會論文集A Vol.34 No.10

        전자 인쇄 분야에 활용이 가능한 잉크젯 프린팅 시스템을 개발하였다. 목표한 위치에 정확하게 이미지를 패터닝 하기 위한 프린팅 시스템의 하드웨어 및 소프트웨어를 개발 하였다. 이를 위하여 패턴 카메라와 선택된 노즐 간의 거리를 구할 수 있는 소프트웨어 알고리즘을 개발하였다. 또한 AutoCAD 의 dxf 파일을 이용하여 XY 스테이지를 동시에 움직여서 프린팅할 수 있는 벡터 프린팅 방법을 개발하였다. 또 다른 프린팅 방법으로 비트맵 이미지를 이용하여 복잡한 이미지를 출력할 수 있는 래스터 프린팅 방법을 개발하였고, CAD 를 이용한 래스터 프린팅 방법과 그 때 생기는 기술적인 문제들을 기술하였다. An inkjet printing system for printed electronics was developed. In this study, a printing algorithm was mainly discussed. In order to print a pattern image at a target location, we developed a hardware and software algorithm for determining the distances between a substrate camera and the selected nozzles. We implemented a vector-printing algorithm where AutoCAD dxf file was used for XY motion control and for printing. We also developed printing method using bitmap images. The technical issues in using CAD drawings and bitmap images were discussed.

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