관상동맥 혈류의 예비력 측정에서 ATP(Adenosine Triphosphate)와 아데노이신의 비교

김원,탁승제,김한수,신준한,조윤경,최옥경,임경수,최병일 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.6

원자력 사고후 쌀알과 배추내 ^90Sr 및 ^137Cs 농도 예측

최용호,임광묵,황원태,이한수,이창우 대한방사선 방어학회 2002 방사선방어학회지 Vol.27 No.3

원자력 사고후 시간경과에 따른 작물체내 핵종 농도를 보다 현실적으로 예측할 수 있는 방법을 수립하고 단위 건침적에 대하여 백미와 배추내 ^90Sr 및 ^137Cs의 50 년간 농도를 예측하였다. 비생육기 사고의 경우 농도는 두 핵종 모두 시간경과에 따라 서서히 감소하였고 50년 내내 ^90Sr이 ^137Cs보다 높았다. 생육기 사고의 경우 처음 1년간 농도는 비생육기 사고에 비해 대체로 ^90Sr은 최고 30 배, ^137Cs은 최고 1,000 배 정도까지 높았다. 50 년간의 누적농도는 백미에서는 비 생육기 사고의 경우 ^90Sr이, 생육기 사고의 경우 ^137Cs이 더 높았으나 배추에서는 어느 경우에나 ^90Sr이 더 높았다. 생육기 사고시 50년간의 누적농도에 대한 지배적 경로는 대체로 ^90Sr의 경우 뿌리흡수, ^137Cs의 경우 작물체 직접오염이었다. 재부유의 영향은 무시할 수 있을 정도였다. 예측 결과에 입각하여 사고 조건별로 대책의 방향을 제시하였다. A method of more realistically predicting radionuclide concentrations in crop plants varying with time after a nuclear accident was established to estimate 50 years' concentrations of ^90Sr and ^137Cs in polished rice seeds and Chinese cabbage for unit dry deposition. After non-growing season accidents, concentrations of both nuclides decreased gradually with time and ^90Sr concentrations were higher than those of ^137Cs throughout the whole period. Radionuclide concentrations in the 1st year after growing season accidents were on the whole higher than those after non-growing season accidents by factors of up to 30 for ^90Sr and up to 1,000 for ^137Cs. In polished rice seeds, the 50 years-integrated concentration was higher for ^90Sr than for ^137Cs after non-growing season accidents, whereas the opposite was true after growing season accidents. In Chinese cabbage, however, it was higher for ^90Sr than for ^137Cs after both types of the accident. Generally speaking, the dominant pathway for the integrated concentration after the growing season accident was root uptake for ^90Sr and direct plant contamination for ^137Cs. The effect of resuspension was negligible. Based on the predicted results, the direction of planning countermeasures was suggested for various accident conditions.

農漁村地域 定住生活圈 區分設定 : 全南 高興郡地域 事例硏究 A Case Study in Koheung County, Chonnam Province

崔洙明,黃漢喆 全南大學校 農漁村開發硏究所 1988 農業科學技術硏究 Vol.23 No.-

This study was carried out to try a methodological approach in planning of rural settlement hierarchy as a study in Koeung County. The propose method is consisted of three sub-steps: step Ⅰ analysis on the print hierarchical settlement patterns, step Ⅱ,analysis and estimation of settlement conditions in future, and step Ⅲ, design of rural settlement hierarchy in county level. In step I, theoretical division of the influential boundary of county-center using the radius of 16Km, analysis of market-use patterns and catchment area of middle schools were tried as analysis tools. Step Ⅱ, change-ability of settlement environment was detected by checking of planning view to county development in higher-rank plans just as provincial or national plans and by estimating the linkage patterns to higher-order center. The major results of this study are summarized as follows: 1. The settlement hierarchy of Koheung County has 4-order system: villege-lower order center (Myun)-low order center(Myun or Eup)-county center(Eup, the seat of county office). It is coincident with the current administrative hierarchy and the hypothetical settlement system propose in this study. 2. According to results of detailed survey, life-zones of Daesuh-, Donggang-, Bongrae, Myuns were divided into two or three parts with their higher order center being neighbouring towns in other county or cities. Koheung-Eup, Doyang-Eup and Kwayeog-Myun make central function fully to the neighbouring Myun-class areas. 3. There are four spheres of daily life in Koheung County : Beolgyo (Beoseong Country) Kwayeog, Koheung and Doyang zones, In future, because Kwayeog zones is estimated to be merged into Koheung zone, the area will be divided into three life zones. 4. Different from typical settlement patterns in rural counties, the highest center in Koheung County (Koheung-Eup) can not converge the total potentiality of subareas. The centers of other three life zones are not connected to Koheung-Eup as higher order center in living activities, but directly to Kwangju City which is the regional center of Chonnam Province respectively, So, there are some unsolved problems in harmonizing the centripetal forces for maximization of developmental potentialities in closed concept with the centrifugal forces for maximization of life convenience in open concept. 5. The methodologies proposed may be applied to the settlement planning in other rural counties having similar settlement condition as Koheung. However, as this study is only a trial to methodological approach in settlement planning, precies methods fer analysis and design works should be developed and studied continuously because planning of settlement system is very crucial to the life of residents living in rural counties.

자율주행로봇의 주행 알고리즘을 위한 퍼지제어기의 설계

최한수,박경석 조선대학교 에너지.자원신기술연구소 2003 에너지·자원신기술연구소 논문지 Vol.25 No.1

Fuzzy controller does not derive special quality spinning expression for system, and uses rules by value expressed by language. It is used extensively to non-linear, plant which mathematical modelling is difficult etc... Fuzzy control algorithm of AMR that is used by this research applies obstacle position, distance of obstacle, Progress direction of robot, speed of robot, Perception area of sensor, etc.. by fuzzy control and decide steering angle of robot. An Autonomous Mobile Robot(AMR) performs duty by sensing a recognized situation and controlling suitably. The existing algorithm has some advantages that it is possible to express the obstacle exactly and the robot is sensitive to the change of environment. However, this algorithm, needs to control repeatedly according to the modelling and working environment that requires a great quantity of calculations. In this paper, We supplement shortcoming and designed direction algorithm of AMR using fuzzy controller. The existing algorithm has some advantages that it is possible to express the obstacle exactly and the robot is sensitive to the change of environment However, this algorithm needs to control repeatedly according to the modelling and working environment that requires a great quantity of calculations.

韓國의 現代政黨 成立에 關한 考察

崔漢秀 건국대학교 1984 論文集 Vol.18 No.1

Korean political parties ordinate from the Independence party in the 1890's. However, It was about to develop as a modern political party, Korea was under colonial rule of Japan from 1910 to 1945. This delayed the formation of Korea's modern political parties be until the 1945 liberation from Japan. The there came out diverse political parties. Their ideologe's were the Right-wing, eft wing or middle of the road. Being established the Government in 1948, the Government prohibited the left-wing political croups from doing their political activites. And thereby middle of the road of political parties also came to he disappeared. Another characteristic of the formation of Korea's modern political parties is that they were organized by only a few politicians. In this sense, Korea's initial political parties can he characterized as a "Cadre party" or a "personality party". Most leaders of Korea's political parties were bestowed with prestige not by electionsbut by their avtivites for the independence movement. Korean political parties were not characteristic of mass party and a party for people's interests. This laid political cultural heritage burught political parties to functioning only as a means of extreme struggling for gaining political power, to struggle extremely betwen ruling and opposition parties.

만대천 유역의 강우량에 의한 비점오염물질 유출특성에 관한 연구

최한규,이진태,박수진 강원대학교 산업기술연구소 2005 産業技術硏究 Vol.25 No.B

Non-point source pollution, which is found in soil, urban area, and agricultural area, is difficult to have its amount to be estimated. Moreover, it is hard to come up with a counterplan to cope with this pollutant. Hence, the watershed of Mandae-cheon located at the upstream of Soyang Lake was chosen as our site of study. We analyzed the relationship between precipatation level of each month and pollution load in the watershed by using statistical methods: measuring BOD, T-N and T-P - which are the causes of eutrophication - in the water; and analyzing the changes in water quality caused by precipitation level of nth.

미계측 유역의 부유물질 산정을 위한 다중회귀식 개발

최한규,박재용,박수진 강원대학교 산업기술연구소 2006 産業技術硏究 Vol.26 No.A

The purpose of this study is to present quantitatively the influence of variables that had the largest effect on the changes in suspended solids(SS), which would cause turbid water phenomenon, among water quality factors of the non-point pollution source, and then to develop a multiple regression equation of SS and predict the water quality of ungaged watersheds so as to provide basic data to establish efficient management plans for SS which flow in rivers and lakes. To identify the correlation of SS with the amount of rainfall and the state of land use, a simple correlation analysis and a simple regression analysis were conducted respectively. Finally, a multiple regression analysis was conducted to provide that SS were set as dependent variables while the amount of rainfall, paddy fields and dry fields were set as independent variables. As a result, the amount of rainfall had the most significant influence on changes in SS, followed by dry fields and paddy fields. In addition, the multiple regression equation was developed to predict SS in unmeasurable watersheds.

소양호 지류하천의 비점오염원 유출특성에 관한 연구

최한규,최창호,박수진 江原大學校 産業技術硏究所 2009 産業技術硏究 Vol.29 No.B

This study selected Naerin Stream, Inbuk Stream and Buk Stream, branch rivers of Soyang Dam, also area of highland agriculture as test sites and measured flow and water quality, particularly eutrophication factors (BOD, COD, T-N, and T-P) in precipitation season and non precipitation season for a year, 2008. Based on the result, the study examined the change in water quality in relation to flow, and created flow discharged - pollution loads regression line by estimating pollution loads flowed from each branch river. And the study calculated annual pollution discharge loads for unit area and proposed regression equation on it by using regression analysis.

소양호 상류유역의 부유물질 유출특성에 의한 원단위 산정에 관한 연구

최한규,최순규,박수진 강원대학교 산업기술연구소 2006 産業技術硏究 Vol.26 No.B

In this research, we have selected the regions of Naerin river and Inbuk river where agricultural activities are actively carried out in the upper Soyang Reservoir and we have observed the changes of water quality while raining after finding out the characteristics of the outflow of floating materials by measuring the water quantity and water quality in division of rainy season and non-rainy season for those floating materials of generating pollutions of turbidity and malnutrition of the water for 4 years from 2002 to 2005. Results of the observation showed that the outflow of floating materials is significantly affected by the surface outflow of rain water, in particular, the surface outflow was great in June-August period of flood seasons.

유해자극에 의한 개구반사와 말초신경 흥분전도에 미치는 건간과 세신 추출물의 영향

최한석,윤수한 大韓齒科保存學會 1992 Restorative Dentistry & Endodontics Vol.17 No.1