石膏 合成樹脂 復合體 物性에 관한 硏究

최강순,김구대,金昌殷 연세대학교 산업기술연구소 1977 논문집 Vol.7 No.1

. The effect of concentrations of urea and melamin resin solutions on the impregnation, thermosetting, and physical properties of the preformed gypsum body was studied to improve the mechanical strength and water resistivity of the substrate material. A maximum impregnation was obtained when the urea and melamin resin concentrations were 60% and 50%, or the viscosities were 100 cp and 200 cp, respectively. High mechanical strength of the resin impregnated gypsum was observed in this range of concentrations. The amount of residual free water in a heat-treated gypsum was found to be increasing and the mechanical strength, consequently, was found to be lowered with decreasing the resin concentration. Since the resin was considered to be absorbed only on the surface of the substrate material, water resistivity of the composite was found to be increasing up to three times of that of a hydrated gypsum, say 3 to 5%, as the concentration of the resin solution increased up to 60%.

무선인터넷 컨텐츠 사용실태에 관한 분석

홍순구,박순형 동의대학교 경제경영전략연구소 2004 經濟經營硏究 Vol.2 No.2

At the end of the 20th Century, the Internet along with development of communication technology, is becoming the core of competitiveness in the global business. As the technology has been developed and generalized, the Internet has been extended for use on mobile phones. However, usage of mobile Internet in Korea remains limited on portable phones, only as a data communication tool. Thus, various mobile Internet contents should be offered to enhance the useag of the mobile Internet. According to a prior study, the mobile Internet is mostly used by young people in their late teens and 20s. The purpose of this thesis is to research the mobile Internet usage to analyze the condition of using mobile Internet content for college students and to derive suggestions of the mobile Internet in the future. The result showed, first, the majority of respondents, 78%, said, in regards to price satisfaction, that the mobile Internet is expensive to use. Secondly, the respondents generally think that the quality of service and of connection to the mobile Internet is only average in quality. Thirdly, the respondents are satisfied with the seven content services (communication, personalization, offering information, entertainment, reservation, finance, and education) that are provided for their use on the mobile Internet. The study showed that technology problems, a reasonable price system and various content developments are urgently needed to activate the market of the mobile Internet services. This study will be a very interesting field for establishing and developing content models to activate a mobile Internet in a sphere of study.

노면표시 제거 자동화 장비개발을 위한 작업공정분석

한재구,김균태,권순옥,함영복 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1

Present removal work for road signs has been required many workers and times because it has been worked by a manually controlled shaving equipment. While these manual works are progressing, there are unwillingly traffic jam by passing control, and unexpected accidents to all workers exposed dangerous road circumstance. Besides, in current shaving method, there are high potentialities on air pollution as well as explosive accidents occurred by using propane gas. However there have been little efforts to improve technical impediments and to develop a new method or equipment related to the road sign erasing works in domestic construction industry. The purpose of this study is to investigate the road sign erasing work processes of the existing in detail and to analyze the required performance criteria for the automated equipment development.

말레이시아 재정지출이 경제성장 효과에 관한 실증적 연구(1970-1997)

원순구 한국동남아학회 2003 동남아시아연구 Vol.13 No.2

The purpose of this dissertation si to appraise the role of public sector and to analyze empirica lly the effects of government expenditure on economic growth from 1970 to 1997 in Malaysia. The effects of government expenditure on economic growth have be en extensively considered in the macroeconomic literature. Recently, some macroeco nomists have reconsidered the impact which the government expenditures and tax decisions may have on macroeconomic variables. The government activities turn out to have effects on long-run growth rates because we are consid ering models that generate endogeneous growth. In this model, changes in govern ment activities would amount to shifts in the production function. To analyze the implications of this theoretical model, I made an empirical study, using by OLS estimation and Impulse response function method. The main empirical result s based on the analysis of annual data of 5 components of Korean real GDP - gover nment investment, private consumption, private investment, net export-can be summ arized as follows: 1) There exists a significant positive relationship between government investment, spending and private activities. (i.e. private investment, private consumption, real GDP) which is consistent with the theoretical results. 2) The response of private investment and GDP to the change in govemment consumption expenditures is statistically insignificant, but increasing government consumption expenditure partially crowd out private consumption. 3) The reaponse of private consumption, private investment and GDP to the change in total government spending is statistically insignificant. probably because the large share of consumption components in total government spending has a dominan t effect on private spending. The above empirical results confirm the hypotheses of the theoretical model, and the results suggest that a model treating government expenditures as a single expenditure component is not adequate. To capture the effect of some governmen t expenditures on real output, it seems more appropriate to treat this kind of purchase as public capital that increases the marginal product of the priv ate production process, as considered externalities between public capital and pri vate capital.

말레이시아 조세제도와 조세수입구조 분석

원순구 한국외국어대학교 외국학종합연구센터 1997 국제지역연구 Vol.7 No.4

본 논문은 마하티르 정권하(1981년~2033년)의 22년간 연평군 6.2%의 고도 성장을 기록했던 말레이시아 경제에 대한 재정의 역할, 특히 세입측면에서의 조세제도와 조세수입구조를 분석하였다. 1997년 외환위기를 겪으면서도 IMF(국제통화기금)로부터의 구제금융을 거부하고 독자적인 확대 재정금융정책을 시행하여 국제경제전문가들에게 질책과 비난의 대상이 되었다. 그러나 경제위기를 극복하고 경제안정과 지속적 성장을 위하여 말레이시아정부가 추진한 팽창적 재정정책에 대한 평가는 매우 긍정적인 의미를 갖게 되었다. 이러한 의미를 고찰하기 위해서는 말레이시아 재정지출 분석과 더불어 경제의 소득 재분배적 역할과 자원배분의 경제적 기능을 수행하고 또한 재원조달의 일반적 수단인 조세수입에 대한 구조와 조세체계를 분석할 필요가 있다. 이에 따라 말레이시아 경제가 장기적으로 지속가능한 성장기반을 조성하기위해서는 현실을 고려한 조세제도의 개혁과 조세수입구조를 개선할 필요가 있다. 제도개선방안으로 인접국이자 외자유치의 경쟁상대국인 싱가포르 수준으로의 법인세율 인하를 통한 외국기업의 적극적인 유치와 소득세율 구간의 간소화와 합리화를 통해 납세자의 편의를 도모하고 징세행정의 효율성을 제고할 필요가 있음을 제안한다. Malaysia is now searching for a long-term strategy to sustain its economic growth in a democratic domestic political environment while further opening itself up to an increasingly interdependent world economy. This paper focuses on the main long-term tax reform issues that malaysia faces in promoting high-quality and sustainable economic growth that improves the quality of life. Monetary and fiscal policies aimed at long-term macroeconomic stability have proven to be essential for high-quality growth Over the last three decades, Malaysia has successfully improved macroeconomic stability and fiscal sustainability. To achieve Malaysia's economic policy objectives, tax system should be effective and responsive to the present and future needs of FDI(foreign direct investment) and changing circumstances. To continue high-quality economic growth while meeting international and domestic challenges, Malaysia should reform tax system and need to reduce the corporate tax rate to the level of neighboring Singapore tax rate. Malaysia income tax rate also should be designed to simplify to some extent and to allow some flexibility,

말레이시아 공공부문의 경제적 역할에 관한 연구(1970-1997)

원순구 한국외국어대학교 동남아연구소 2001 東南亞硏究 Vol.- No.10

靑少年의 性役割類型과 創意性과의 關係

최보가,具順珠 경북대학교 교육대학원 1986 논문집 Vol.18 No.-

The purpose of this research was to study the relationship between creativity and sex-role type. The subjects were 232 junior high school students (112 male students, 120 female students) in Taegu. Presonal Attributes Questionnaire which consisted of independent Masculinity-Feminity Scale was to classify sex-role types. And to measure creativity, Standardized Creavity Test was used. For the statistical analysis of collected data, two way ANOVA was performed. The results of this study were summarized as follows. First, according to the sex-role type of the student, there were significant differences in total creativity. That is, masculine students had creativity of the highest level, and feminine and undifferentiated students displayed lower creativity. Second, according to the sex-role type of the students, there were significant differences in subordinated factors of creativity. That is, according to the sex-role type of the students, here were significant differences in fluency, flexibility, and originality. Masculine students were found to the highest degree, and feminine and undifferentiated student were demonstrated lower in the above three subordinate factors. Third, there were no significant sex differences in total creativity and subordinate factor of creativity.

좌심실 이완기 장애 평가에서 Atrioventricular Plane Displacement의 임상적 중요성

정연손,조구영,이태유,김근숙,최창순,류제헌,최민호,박우정,임종윤,이영 대한순환기학회 2003 Korean Circulation Journal Vol.33 No.12

심부전증에서 Doppler Tissue Image를 이용한 비동시성 심실수축(Myocardial Dyssynchronicity)의 측정 : 심전도와비교 Comparison with EKG

구소영,조구영,한성우,최승혁,박우정,두영철,홍경순,오동진,이영 대한순환기학회 2004 Korean Circulation Journal Vol.34 No.4

기술 교과의 ICT 활용 교육을 위한 XML 교수문서시스템의 설계 및 구현

정덕길,이종구,한순희 한국컴퓨터교육학회 2003 컴퓨터교육학회 논문지 Vol.6 No.4

21세기의 교육은 교육 정보화를 기반으로 한 연계·통합 교육으로 발전되고 있으며, ICT 활용교육이 교수-학습 전략과 유형을 제시하며, 기술교과의 수업 지도안에 대한 효율적인 XML 문서 생성 및 저장 시스템에 대한 구현 방안을 제시한다. 그리고 이 논문에서 구현된 XML 교수 문서 시스템을 적용하여 교육 자료의 효율적인 관리과 저장성을 높이고, 동일 업무에 대한 교육 자료의 재편집 과정을 감소시킴으로써 교육 자료의 가치를 높일 수 있는 가능성을 확인하였다. The education of 21st century is developed to the closely connected and integrated education, and the ICT applied education is suggested as an approach to teaching-learning method. In this paper, we suggest an teaching-learning pattern and strategy of Technology course as an example of the ICT applied education, and provide an implementation for the efficient XML document creation and storage system of teacher’s subject data. And we have confirmed the utilization of this system which it improves the efficient management and preservation of educational data and also it raises the value of educational data by decreasing the burden of re-editing the educational documents for similar business.