서울 서남부지역 노인 인구에서 비만증 유병률과 고지혈증과의 상관성

최경묵,조영직,김경오,김동림,김난희,백세현,안정천,서홍석,오동주,최동섭 대한노인병학회 2000 Annals of geriatric medicine and research Vol.4 No.3

세계경제질서의 변화

이상직,이동헌 대구산업정보대학 2000 논문집 Vol.14 No.1

Since the end of World War Ⅱ, the world was conspicuously divided into two poles, capitalism and socialism, and world order was maintained based on the structure of confrontation in terms of ideology and political system. The world is undergoing liberalization and globalization spurred by the breakdown of the Cold War order and is community due, in particular, to the advances of telecommunication technology. This is what we call the transition from the dual structure to a single-pole structure, or the emergence of globalism. Globalism leads to transition from the structure of political and military confrontation to the structure of economic confrontation, which inevitably generates nationalism and regionalism. As the national integration based on ideology and political system becomes out of the question, nationalism is rising again as the basis for national integration. However, under globalism, no country can maintain a closed economic system completely cut off from outside, and hence, no country can help being exposed to fierce economic war. In this new current of the times, supernational capital is becoming rapidly accumulated and the competition of capital is becoming ever more fierce. Overheated economic competition causes rapid expansion of production capacity, which requires expansion of market size and strengthening of market control. This requirement in turn spurs regionalism.

건물의 지하구조변경에 따른 지상층의 실내 라돈농도에 관한 실험적 연구

차동원,서승직 대한건축학회 2003 대한건축학회논문집 Vol.19 No.2

The Test Cells that had been built and utilized for the previous study titled "An experimental study on variation of indoor radon concentration and soil gas analysis" was utilized for this study as well to find out what are the important differences in indoor radon concentration when the test cells are with or without basement. For this purpose, the basement was filled with imported soil after the previous study to have changes in substructure as follow; 1) filled up to 30cm below ground floor slab to make floating slab, 2) filled the unfilled space to make grade-on slab, and 3) substitute top 10cm thick soil with gravel underneath ground floor slab to provide high permeability. The indoor concentrations of ground floor at the above three status were measured and analyzed in regression method to compare with each other and with when the basement was not filled.

A Study on E-commerce Recommender Systems Based on LSI and Fuzzy Model

권영직,양춘우,권동훈 대구대학교 정보통신연구소 2009 情報通信硏究 Vol.6 No.1

This paper combines two analytical techniques to create a model that not only narrows product choices but also producesa prioritized product list of recommendations tailored to a specific customer. Specifically, the paper proposes to create a recommender system based on applications of Latent Semantic Indexing (LSI) and Fuzzy Synthetic Judgment (FSJ). The application ofthese two analytic models will serve a two-fold purpose. Latent Semantic Indexing will enable the model to account for incomplete rating information in the collaborative rating matrix so that the completed rating matrix can then be decomposed using the Singular Value Decomposition (SVD) method. Fuzzy Synthetic Judgment will then provide a prioritized list to the customer of recommended selections. In order to provide a clearer understanding of the proposed recommender process, the authors will demonstrate the requisite calculations through an application. In addition to clarifying the process, the example will serve to help validate the proposed model.

오존 발생기용 전원장치 개발 및 특성에 관한 연구

김동희,이달해,성현직,오승훈,이봉섭,배상준 嶺南大學校 工業技術硏究所 1997 工業技術硏究所論文集 Vol.25 No.1

The power semiconductor switching devices(PSSD) continuously developed, Power Electronic Technology using PSSD is gradually extended. The high frequency inverter to generate the large power high frequency subject to power electronic technology pursuit various application. Also, in emboss with environmental destruction problem cause the atmosphere and the water pollution to growth of the commercial society, the research in favor of cleansing environmental a pollutant actively proceed. Cause of having a strong oxygenization in the physical world, the ozone has sterillization effect predominantly against virus, bacteria, etc and has application in decolorization, deodorization, food storage and air cleansing and has a merit that does not cause the secondary pollution by being restored to oxygen lastly. Therefore, This project describe study on the ozone generation power supply using the high frequency electric field method and the lamp type ozone generator using photochemistry, one of method of generate ozone.

인접건물에 의한 반사주광 성능에 대한 평가

최원기,이동권,안명환,서승직 대한건축학회 2004 대한건축학회논문집 Vol.20 No.6

This paper is focused on evaluation of daylight reflecting performance from the adjacent building for improvement of poor environment conditions in a metropolitan area. The numerical model developed can be used for evaluation of daylight reflecting performance. As a result comparison of our simulation programs and commercial softwares, it was verified that there was no difference between two results. In this study, the sensitivity analysis of environmental performance factors of daylight reflecting from the adjacent building were examined, analysed and presented as a solution method for improvement of building environments. The results were proved to be an effective control methods for improvement of building environment, especially in a metropolitan area.

AUTO CAD를 이용한 NC선반작업의 공구경로 검증을 위한 교육용 프로그램 개발

한영호,김동직 建國大學校 附設 産業技術硏究所 1993 논문집 Vol.18 No.-

Using AUTO LISP, an educational program for checking tool paths for NC turning operation has been developed under the widely used AUTO CAD environment. This program enables the NC class to give students chances for visual experience for tool path checking on a desk-top PC although the class can not afford to provide the highly expensive NC machines. The program is equipped with the ability to convert the CAD data to NC data even though it is not fully developed at the present state. A general purpose tool path checking program is expected possible for other machining jobs than the turning operation on the same basis of this study.

大學敎育熱望에 관한 경험적 연구 : 사회구조적 요인 및 자아존중감을 중심으로

李成海,李東直 釜山大學校 學生生活硏究所 1985 硏究報 Vol.21 No.1

The main purposes of the study were to analyze: 1) the effects of family environment, school environment, I.Q., academic performance (grades in both middle school and high school) and sex on self-esteem and the college educational aspiration of the high school students ; and 2) the effects of self-esteem on their college education aspiration. In this study it was assumed that family environment, school environment, I.Q., academic performance and sex were treated as the independent variables, self-esteem as the intervening variable and college educational aspiration as the dependent variable. Family environment variable includes the socioeconomic star us of parents and socialization pattern of parents (affection-rejection, self-control-others -control, and achievement--non-achievement). School environment variables consider the influence of teachers, peer influence and school curriculum. Data for the study were collected through the use of self-administered questionnaires from a sample of 715 high school students in Pusan, Korra in August and September, 1984. The results of the study are summarized as follows : (1) There was no effect of self-esteem on the college educational aspiration of high school students. (2) Among the independent variables the school curriculum was the most important variable in determining the aspiration of college education. (3) Grade in the middle school, sex and socialization pattern of parents (achievement-non-achievement dimension) were also important variables in determining the aspiration of college education.

단순 과반수 규칙의 배분적 성질

황수연,이동직 경성대학교 2000 論文集 Vol.21 No.1

In this paper the authors tried to explicate from applying n-person game theory that the result of simple majority rule depends on the financing methods of the respective project, the nature of benefits from the project, and on the extent of the allowance of side payments. We could particularly verify that if side payments were allowed, then it would be possible to eliminate or reduce severe social wastes from simple majority rule.

중등학교 평준화 정책과 과열 과외

황수연,이동직 경성대학교 2000 論文集 Vol.21 No.2

The secondary school equalization policy in Korea was initially adopted to curb excessive out-of-school studies of the junior and senior high school students. It failed to accomplish its goal in this regard, however Rather, that policy exacerbated the excessiveness of out-of-school studies. We explain why in this paper.