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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.
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.
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.
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.
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.
조영태(Young-Tae Cho) 한국기계가공학회 2013 한국기계가공학회지 Vol.12 No.4
As an advance study for the development of a heat sink for special purpose high power illumination, an investigation was made to find feasibility for the application of copper plated EP to a heat sink of small LED light of less than 10W installed in commercial product. In this study, the plated heat sink with EP copper was fabricated for the conventional LED light. It was used actually for finding heat radiation property and effectiveness of the heat sink accompanied with measurement of luminous intensity. The heat is radiated by transfer and dissipation only through the copper plated surface due to extremely low heat conductivity of EP in case of EP heat sink; however the total area of the plate plays the function of heat transfer as well as heat radiation in case of the aluminum heat sink. It seems that the volume difference of heat radiating material is so big that the temperature P₁ is 9.0~12.3% higher in 3W and 42.7~54.0% higher in case of 6W volume difference of heat radiating material is so big that the temperature P₁ is 9.0~12.3% higher in 3W and 42.7~54.0% higher in case of 6W even though heat transfer rate of copper is approximately 1.9 times higher than that of aluminum. It was thought that this is useful to utilize for heat sink for low power LED light with the low heating rate. Also, the illumination could be greatly influenced by the surrounding temperature of the place where it is installed. Therefore, it seems that the illumination installation environment must be taken into consideration when selecting illumination. Further study was expected on order to aims at development of an exterior surface itself made into heat radiation plate by application of this technology in future.
도시행정에 있어서 소셜미디어를 활용한 온라인 주민참여의 활성화 방안
조영태(Cho, Young Tae),김윤기(Kim, Yun Ki) 한국지적학회 2012 한국지적학회지 Vol.28 No.1
Currently, though social media like Twitter, Facebook, blogs, YouTube and others are seemingly monopolized by young generations and some tech-savvy people, social media will soon be utilized over time in many areas like politics, society, culture and so on. The study intends to make suggestions to activate residential participation in local autonomous organizations by taking advantage of social media, under such contemporary circumstances and demands. As the research checked Gangnam-gu of Seoul, and Cheongju City and Cheongwon County of Chungbuk Province, most of their online residential participation is active on the Web and social media is used mainly for promotional newsletters and notifiers for local administration. The research has put forth five measures such as exploration of areas in which to utilize social media, establishment of a specialized organization and regulations, creation of specific accounts for office sections, gradual promotion of social media use and elimination of information divide, with a view to revitalizing residential participation in municipal administration through social media. 현재 트위터, 페이스북, 블로그, 유투브 등과 같은 소셜네트워크 서비스도 일부 젊은 층과 IT 기술에 능통한 사람의 전유물처럼 되어 있으나, 시간이 흐름에 따라 정치, 사회, 문화 등 다방면에 SNS서비스가 이용될 것이다. 이러한 시대적 상황과 요구하에서 소셜미디어를 이용하여 지방자치단체에서 주민참여 활성화 방안을 제시하는 것이 본 연구의 목적이다. 서울의 강남구청, 충북의 청주시와 청원군을 대상으로 분석한 결과 아직까지는 대부분의 온라인 주민참여는 웹상에서 이루어지고, 소셜미디어는 지방행정의 홍보물 또는 알리미 정도로 밖에 이용되지 않고 있는 실정이다. 소셜미디어를 통한 도시행정에서 주민참여의 활성화를 위해서 소셜미디어의 활용분야 모색, 전담운영 조직과 규정의 마련, 부서별 세부계정의 도입, SNS이용에 대한 단계적 홍보, 정보격차수준의 해소와 같은 5가지 방안을 제시하였다.