http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
비압축성 유동해석 알고리듬 확장을 통한 압축성 유동장 해석
임영택,김문상,Lim, Yeong-Taek,Kim, Moon-Sang 항공우주시스템공학회 2008 항공우주시스템공학회지 Vol.2 No.2
The characteristics of compressible flow are different from those of incompressible flow from the mathematical and physical point of view. Therefore, the way to solve the flowfield is different between compressible flow and incompressible flow. In general, density-based numerical algorithm is mainly used for compressible flow solver development. On the other hand, incompressible flow solver prefers to use pressure-based numerical algorithm. In this research, a compressible Navier-Stokes flow solver is developed by means of extending from pressure-based incompressible numerical algorithm to handle both compressible and incompressible flows using the same flow solver. The present flow solver is tested at various speed ranges and compared with the solutions of density-based compressible flow solver. Numerical results show a good agreement between two flow solvers.
임영택 대한국토·도시계획학회 2010 國土計劃 Vol.45 No.1
Today, sustainable urban development is a key challenge of the urban development in metropolis as the watchwords of modern urban planning. For this, it is essential to preserve the conservation area and to leave room for new development for future generations. Regeneration of brown filed is a reasonable way that systematically accommodates demands of new urban development for introducing newly urban functions or housing supplies required to the urban plan. Also the urban regeneration plan has to consider slow population growth, which is likely to discourage the demands for the development of brown field that has the complex relationship rather than suburbs. For these reasons, this study was intended to explore ordered strategies for sustainable urban development of metropolitan in the age of slow population growth. First, the lesson for well-planned urban regeneration has been drawn by review about smart growth management, compact city development, transportation oriented development, etc in related research. Second, the direction of urban development of metropolis has been drawn through analysis on urban development policy and urban development conditions according to the type of population growth of Korea. In this study, As a slow population growth city, Daejoon, was selected, and then the lesson for well-planned urban regeneration has been derived. Finally, to find a strategy for ordered urban regeneration of metropolis, a survey of experts related urban planning was done and analyzed. In this study, the strategies of urban master plan and urban regeneration plan for well-planned urban regeneration have been suggested.
CNT/PMMA 복합막 검출기의 유기화합물 증기의 검출 특성
임영택,신백균,이선우,Lim, Young Taek,Shin, Paik-Kyun,Lee, Sunwoo 한국전기전자재료학회 2015 전기전자재료학회논문지 Vol.28 No.11
In this paper, we fabricated organic compounds detector using the MWCNT/PMMA (multi-walled carbon nanotube / polymethylmethacrylate) composite film. We used polymer film as a matrix material for the device framework, and introduced CNTs for reacting with the organic compounds resulting in changing electrical conductivity. Spray coating method was used to form the MWCNT/PMMA composite film detector, and pattern formation of the detector was done by shadow mask during the spray coating process. We investigated changes of electrical conductivity of the detector before and after the organic compounds exposure. Electrical conductivity of the detector tended to decrease after the exposure with various organic compounds such as acetone, tetrahydrofuran (THF), toluene, and dimethylformamide (DMF). Finally we conclude that organic compounds detection by the MWCNT/PMMA composite film detector was possible, and expect the feasibility of commercial MWCNT/PMMA composite film detector for various organic compounds.
CNT의 도입에 의한 β-phase PVDF의 형성과 CNT/PVDF 복합막에서의 압전성능 개선
임영택,이선우,Lim, Young-Taek,Lee, Sunwoo 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.11
In this paper, we fabricated flexible CNT/PVDF piezoelectric composite device by introducing CNTs (carbon nanotubes) into PVDF (poly-vinylidene fluoride) solution using spray coating technique. Flexible PEDOT:PSS conducting polymer was used as electrodes. We tried to improve the piezoelectric performance from the CNT/PVDF composite film by increasing the portion of the ${\beta}$-phase PVDF in the film. We confirmed the structural conformation of the CNT/PVDF composite film as a function of CNT concentration by using FT-IR (fourier transform infra-red). As increasing CNT concentration, portion of the ${\beta}$-phase PVDF and resulting piezoelectric performance increased in the CNT/PVDF composite film. We found that CNTs introduced were played as seeds for formation of the ${\beta}$-phase PVDF in the CNT/PVDF composite film and resulting improvement of the piezoelectric performance.
임영택 한국기독교교육정보학회 2012 기독교교육정보 Vol.32 No.-
본 논문의 목적은 신앙공동체 교육이 목표로 하는 기독교적 민주시민성을 위한 방법을 재 고찰하고 그의 따른 모델을 위한 연구이다. 신앙공동체의 교육방법은 개인의 변화와 사회개혁을 위해 종교의식, 경험, 행동의 모델을 제시한다. 이 방법은 공동체 방법의 정신을 구체화하고 개발하는 역동성에 깊은 질문을 제시한다. 모델은 전생애에 걸친 예전, 가족공동체의 상호 세대적 경험, 그리고 사회적 행동의 실천모델이다. 이 방법과 모델의 제시는 신앙공동체성을 회복하고 교육목회자들에게 제자로서 시민형성을 위한 방법을 재인식하고 실천하게 한다. The paradigm shift of the faith community -- from a schooling and instructional model to a community of faith and enculturation model -- was revolutionary to merit-oriented and college entrance exam-centered education in Korea. This Method has prompted a reexamination of educational ministry and caused us to rethink how we can improve the learning context for formation of faith and its lifestyle. we have acknowledged the possibility and limitation of faith community education. Therefore, the purpose of this article is to reexamine three methods and models for Christian faith and its life style to develop a Christian democratic citizenship. First, ritual and model of liturgy have always been central to the life of the community. Through rituals community celebrate her heritage and tradition, memory and hope of faith. Liturgy unites symbolical actions(rituals) and social actions. Liturgy includes discipleship within the faith community trough ritual and citizenship in the world by personal and social action. Thus, I introduce model of liturgical process: child baptism, first communion, covenant, conformation, ordination for Christian calling, and last rites. Second, intergenerational experience and family clusters are enable congregation to interpret the meaning of their own faith and experience. Intergenerational experience emphasize the nature, character, and quality of these interactive experience among people of all ages within a community of faith that best describes the means of educational ministry. As model of experience, I explore family cluster programs which bring transactional experience among families and have opportunity to reshape communal spirit and life. Lastly, social action and praxis movements must committee together to transform society and reform the community life. Therefore, Groome and Browning provide alternative models of action praxis which concern about how the community itself is transformed in multi-cultural society. The Method of the faith community education has made contributions to educational ministry. True understanding and reusing of method of the faith community show that Christians must act responsibility to transform the Korean church and society. The efforts of educational ministry for the faith community should be studied and provided in the Korean educational context.