플랜지 플렉시블 우레탄카 커플링 개발

조영태,이기용,이충호,Cho, Young-Tae,Lee, Ki-Yong,Lee, Choong-Ho 한국생산제조학회 2010 한국생산제조학회지 Vol.25 No.5

The study was aimed at developing a power transmission coupling that is possible to transfer power without any trouble even if the two rotating shafts are making minute misalignment. The coupling that has been developed is Flange Flexible Urethane-key Coupling that connects two shafts by flanges with Urethane-key. A model coupling for use in transmitting power of 10hp was made and undergone performance evaluation and tests. Property and usefulness was proved through the test. The performance evaluation has demonstrated a property of $11.25Kgf{\cdot}m$ of allowable torque and 28.25hp of power at 1,80Orpm, which was found to be superior compared to the performance of similar couplings. Based on the performance test, study was made also for improving the shape of the Urethane-key and was successful to make the flange in smaller outside diameter. Further application test at site has proved that the product is easy to install and maintain, and has property of absorbing minute misalignment between two shafts and vibration caused there from.

주민제안형 도시설계 운영 및 평가: 뉴타운시민대학을 중심으로

조영태,이재준,최석환,김도영,Cho, Young-Tae,Lee, Jae-Joon,Choi, Suk-Hwan,Kim, Do-Young 한국토지주택공사 토지주택연구원 2013 LHI journal of land, housing, and urban affairs Vol.4 No.2

본 연구는 경기 뉴타운 시민대학 프로그램으로 진행된 안양 만안뉴타운 도시설계안을 대상으로 프로그램 운영평가와 결과물 분석을 통해 향후 주민제안형 도시설계의 시사점을 도출하는 것을 목적으로 한다. 뉴타운 시민대학은 기존 강의 위주의 방식에서 벗어나 주민이 직접 참여하여 분석하고, 설계안을 작성 제안하는 스튜디오 방식으로 진행되었다. 본 연구의 대상인 안양 만안팀의 계획안 '자연, 문화, 역사, 사람이 공존하는 Eco-Cycle 만안'은 2010년 시민대학의 대상을 수상한 주민제안형 도시설계안이다. 만안팀은 지역분석과 대안설정을 통해 문화, 여가, 자연이 공존하는 공간으로 대상지역을 계획하였으며, 주민설계안이 실제 뉴타운의 재정비촉진지구 계획에 반영되었다. 본 연구를 통해 주민들이 직접 참여하고 디자인한 뉴타운 시민대학의 도시설계 작성과정과 프로그램을 살펴보고 공공디자인으로서 주민제안형 도시설계의 가능성과 방향성을 제시하고자 하였다. This is a study regarding the efforts of the Gyong-gi Newtown Citizen Academy in Anyang Man-an Newtown and their role in shaping the urban design of their living environment. Our goal is to gauge how citizen participation may factor into the design process, from the early stages to the end result. The Newtown Academy diverged from the existing methods of a lecture centered approach to one that encouraged direct participation from the local citizens. We analyze the process and manner in which they drew up the plans. Our research focused on the winning proposal from the 2010 Citizen Academy Design competition, entitled 'Coexistence with Nature, Culture, History, Human - Eco-Cycle Man-an'. The Man-an team conducted regional analyses to come up with their own alternatives that would allow culture, leisure and nature to coexist in the space of their targeted area. The Newtown redevelopment promotion district reflected the actual implementation of the Man-an team's design. This study examines an urban design process in which citizens become directly involved, which presents the possibilities and directions of an urban design that is public and resident-oriented, in nature.

TPE를 적용한 자동차 윈도우 모터커버의 개발

조영태,고범용,이충호,Cho, Young-Tae,Ko, Boum-Yong,Lee, Choong-Ho 한국생산제조학회 2010 한국생산제조학회지 Vol.26 No.1

It was attempted to develop an auto part by over molding injection mold that produces precision products in high productivity with use of an eco-friendly TPE substitute material for NBR. NBR is currently used in motor gear cover, one of the key parts in motor module for auto doors. Gear cover is composed of plastics and rubber mostly today, which requires a two (2) step process for production using two presses of different types. A hot press is used at this time for forming the rubber, which has drawback of requiring a rather long forming time of 400 seconds for one forming process. Even though this difficulty is overcome by reducing production time through employment of multi-cavity molds, time for forming process must be shortened for improvement of the productivity eventually, and the existing method of insert injection for products that have been formed with plastic material must be outgrown. In this point of view, over molding injection using TPE has a big advantage. Forming time is shortened to 54 seconds, and working the two (2) processes in series by one (1) press could solve the durability problem caused by deflection of the plastics, not to mention shortening the process time. Enhancement of productivity by almost 80% and improvement in the accuracy of the product could thus be achieved.

대규모 신도시 및 주변지역 거주환경 비교분석 연구

조영태,성장환,Cho, Young-Tae,Seong, Jang-Hwan 한국토지주택공사 토지주택연구원 2011 LHI journal of land, housing, and urban affairs Vol.2 No.1

1990년대 초반 분당, 일산 등 5개의 수도권 1기 신도시가 개발되었다. 이들 신도시는 체계적인 도시계획과 쾌적한 주거환경으로 선호도가 높아 살고 싶은 도시로 인식되고 있다. 이들 신도시 인근에는 중소규모의 택지개발이 많이 진행되었으며, 동일 생활권을 형성하기도 하는데 이들 지역은 '신개발 밀집지역'이라 불릴 수 있다. 수도권에서 이처럼 신개발이 집적된 대표적인 지역이 경부고속도로축에 입지한 분당과 용인서북부 지역이다. 이 지역은 2005년 현재 거주인구가 100만을 상회하는 대규모 생활권을 형성하고 있다. 본 연구에서는 분당-용인서북부 지역의 거주환경 비교분석을 통해 연속적인 중소규모 택지개발의 문제점을 파악하고 향후 신도시개발 및 주변지역 도시관리의 방향을 제시하고자 한다. During the 1990's, five new towns were constructed around Seoul such as Bun-Dang and Il-San. These new towns are very popular since they were created based on systemic urban planning and they provide various residential amenities. Many people consider them livable cities. Taking such advantages, other small-scale new public and private developments continued around those new towns and consequently created 'agglomerated region with new development'. The most representative area is Bun-Dang and north-western Yong-In area which are formed along the Seoul-Busan expressway. This area is a mega-community having more than one million residents in 2005.Judging from recent development trends in the Seoul metropolitan area, it is expected that the formation of other 'agglomerated region with new development' would be continued for the time being. This study is aimed to analyze the residential environment of Bun-Dang and north-western Yong-In and find implications to the management of 'agglomerated region with new development'. The relevant existing studies have their limits, only focusing on analyzing current conditions and pointing out current problems. This study could be differentiated from the existing analyses in that it conducted comprehensive analyses on various factors that constitute urban residential environment. The conclusion of this study was derived from diverse analyses of current development condition, residential sites, regional transportation, awareness of residents, and oversee cases.

레이저 소결을 이용한 ITO 코팅 유리 위 금속 배선 제작에 관한 연구

김동진(D. J. Kim),이준영(J. Y. Lee),윤여명(Y. M. Yoon),조영태(Y. T. Cho1),정윤교(Y. G. Jung) 한국기계가공학회 2012 한국기계가공학회 춘추계학술대회 논문집 Vol.2012 No.11

멀티칩 10W LED조명등의 방열

조영태(Young-tae Cho),마상동(Sang-dong Ma),이충호(Choong-ho Lee) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4

This paper amis at improving the heat radiation performance of thermoelectric module(TEM) for a commercialization of high-powered LED light with using a multichip LED module. And a 10W multichip LED light was manufactured and then the radiate heat performance test of that was made by the driving of the thermoelectric module. So, it was found that about 40% in the effect of temperature reduction was confirmed if compared with the radiation heat by heat sink only.

도덕과 종교-심미적인 것 : 오우크쇼트를 중심으로

조영태(Young-Tae Cho) 한국도덕교육학회 2019 道德敎育硏究 Vol.31 No.1

오우크쇼트에게 있어서 인간에게 가장 가치로운 것은 심미적(예술적)인 것, 즉 시(詩)이다. 그것은, 예술은 하나의 양상적 경험이되, 그와 동시에 경험 그 자체이기 때문인데, 다시 그것은, 예술에서는 형식과 내용이 아예 구분불가능하기 때문이다. 과학과 실제적 활동 등은 물론 예술 활동이 아니지만, 그 활동에서 형식과 내용이 (구분되기는 하나) 분리되지 않은 채 수행될 수 있다. 이 경우 그 활동들은 예술적인 방식으로 수행되는 것이라고 말할 수 있다. 오우크쇼트에게 있어서 종교는 (예컨대 커다란 이념을 추구하는 일이 아니라) 자기 자신을 추구하는 일이다. 종교는 인간의 한계와 가능성을 의식하며, 같은 말이지만, 인간의 인간으로서의 문제를 인식하고 해결책을 제시한다. 오우크쇼트에게 있어서 인간의 한계, 인간의 문제는 무지, 고, 죄, 허무 등으로 파악되며, 그 해결책은 예술적인 것에 있는 것으로 파악된다. 그에게 있어서는 자기 자신을 추구하는 일도, 구체적으로는, 예술적인 것을 향유하는 것으로 나타난다고 말할 수 있다. As for Michael Oakeshott, what is the most worthwhile in human life is the aesthetical, that is, poetry. Because the art is not only a mode of experience but also experience itself. The art dose not know the distinction between form and content. Other activities like science and practical experience are not art. However those activities can be performed in a special way in which form and content can not be separated, though they are distinguished. In that case, those activities can be said to be performed in an artistic way. As for Michael Oakeshott, religion means pursuing self, not grand ideal for example. Religion is conscious of the limit of human being and the possibility of human being. We can say that religion recognizes human problems and suggests solutions to that problems. Michael Oakeshott thinks that human problems are comprised of ignorance, sufferings, sins and nihility. And he thinks that we can find the solutions to that problems in arts, that is, arts proper and artistically-performed activities like science and practical activities. As for Michael Oakeshott, pursuing self means participating and enjoying arts.

동력전달용 소형 우레탄키 커플링 및 테스트 장치 개발

조영태(Y.T. Cho),이충호(C.H Lee) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.10

열전도 CNT 수지를 이용한 50W급 LED 모듈의 방열

조영태(Y. T. Cho),이충호(C. H. Lee),마상동(S. D. Ma) 한국생산제조학회 2013 한국생산제조시스템학회 학술발표대회 논문집 Vol.2013 No.4

혐기성슬러지의 SMA측정을 위한 초기실험조건

조영태(Young-Tai Cho) 한국환경관리학회 2006 環境管理學會誌 Vol.12 No.1

메탄생성량을 측정하여 구하는 비메탄생성균활성도 시험은 혐기성 공정의 성능과 안정성을 평가하는데 이용될 수 있다. 본 연구는 비메탄생성균활성도 측정을 하기 위한 이상적인 초기 실험 조건을 설정하는데 초점을 맞추고 있다. 초기 기질 농도, 초기 바이오매스 농도, F/M (Food/Microorganisms)비 및 혼합강도를 포함하여 네 가지 주요 조건에 대하여 연구하였다. 연구 결과 권장할 만한 초기실험조건이 얻어졌다. 초기기질의 농도는 초산으로서 1,000~2,000 ㎎/L 초기 바이오매스의 조건은 2,000~5,000 ㎎/L. 바람직한 먹이/미생물 비는 약 0.3 gHAc/gVSS이었고, 500㎖ 용량의 반응기와 자석막대기를 사용하는 조건에서의 적합한 혼합속도는 약 400 rpm 이었다. Specific Methanogenic Activity (SMA) tests can be used to evaluate the performance and stability of anaerobic process by means of monitoring the methane production. This study focused on the initial environmental conditions for SMA tests to provide biomass in the reactor with an ideal condition. Four major parameters including the initial substrate concentration, the initial biomass concentration, the food/microorganisms ratio and the mixing intensity were investigated. The result of this study showed recommendable initial test conditions; the substrate concentration as an acetic acid was 1,000 to 2,000 ㎎/L and the biomass concentration was 2,000 to 5,000 ㎎/L, A desirable F/M ratio was above 0.3 gHAc/gVSS, and the mixing intensity was around 400 rpm in the test conditions where a 500㎖ serum bottle and a magnetic stirrer were used.