• 항공우주기술
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• 제4권1호
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• pp.260-267
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• 2005

소형무인기용으로 개조된 가솔린 엔진에 장착될 수 있는 소형전자점화장치의 개발과정을 기술하였다. 소형전자점화장치는 엔진회전수와 흡기부압과의 관계 테이블에서 최적의 점화진각을 선택하여 스파크점화를 할 수 있으며 PC와의 통신을 통해 점화진각값과 Hall 센서의 위치값을 조절할 수 있다. 소형전자점화장치 개발기술은 국내 소형무인기 개발에 필요한 동력장치의 핵심기술이 될 것이다.

• 건축역사연구
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• 제4권2호
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• pp.9-24
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• 1995

Near the Capital Seoul in 19th century, a special architectural form was created by the Buddhist monks who were related with Royal families. Their temples, so called 'won-dang', were constructed as supplicating places for their patrons' happiness and heavenly bliss. Among buildings of a Won-dang temple, 'Great Hall', which was accepted as a new building type, was the most important, the earliest constructed, and the biggest one. This boiling type contained the complex functions of small chaples, living rooms of monks, kitchen and dining, and pilotied pavillions. This Great Hall was located at the front of Won-dang temples, the main worship halls were at the behind. The type of Won-dang was needed for the high female who were its powerful patrons, and was oliginated from the small Buddhist temples in rural areas. And the type was able to be domiciled itself at the Capital areas because of the existing architectural fondness of the regional architects and the patrons in high class.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2003년도 춘계학술대회논문집
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• pp.802-807
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• 2003

International Convention Center Jeju(ICCJ) was planed and built for accommodating a variety of conventional and exhibitional activities. For a better flexibility of operation, almost all rooms in ICCJ are designed to be subdivided Into a couple of small rooms with installation of movable partition walls. Architectural and acoustical design should be deliberatively and cooperatively undertaken to cope with such a complex condition. Conference hall, the largest room in ICCJ, has a capacity of 5000 seats who:1 used as a whole. It could be divided into 3 halls, one with 2000 pre-installed seats on slanted floor, up/down removable stage and its settings above, and the other 2 flat rooms with no seats installed. A devided hall with pre-installed seats and stage is designed for a multi-use auditorium. Almost all surfaces except ceilings adjacent to the stage are sound absorptively treated, in regard to extensive use of sound reinforcement systems. Its reverberation time 1.65 sec without audience, which is roughly correspond to 1.50 sec with fully occupied audience. When there is a need for a larger room, all the partition wail Is removed and the hall could be used as a whole. Exhibition hall is located in the first floor of ICCJ. Absorption and softness are needed for the hat 1 because exhibition behavior has something noisy features. Perforated MDF panels with porous materials and air space in the back groundare adopted for the walls. There are one large, two medium, and several small convention rooms in ICJJ. The room are also acoustically designed for maximum flexibility with no defects soundwisely.

• 건축역사연구
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• 제9권1호
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• pp.47-64
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• 2000

The Chapel and Exhibition hall of Chul-du-san-Holy place are considered as the most important work of architect Lee Hee-Tai (1925-1980), and as a work representing Korean architecture in 1960's. What is the reason that these buildings can acquire such a remarkable estimation? This study tries to make clear this reason with an analytic method. These buildings are situated in singular site, in which small mountain comes up alongside with Han-river. Architect laid out the Chapel and Exhibition hall to the memory of 108 saints who died for their faith in this mountain, considering the specificity of the site, the direction of approach stair, and the formation of public space. Architect proposes an opposed composition of form for these two buildings. So the Exhibition hall is characterized by trabeated structure, centripetal force and Apollonian order. It has strictly proportioned facade, which is composed of two 15m-by-l5m squares and subdivided equally in three portions. The Chapel is charaterized by arcuated structure, centrifugal force, and Dionysosian sentiment. In this work, architect Lee Hee-Tai also expressed the locality of Korean architecture with the grammar of column-roof.

• 한국농촌건축학회논문집
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• 제10권2호
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• pp.53-61
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• 2008

There are many ways to know the social and cultural level of each country. Among them, a theme museum are not only the best place to understand the history, the life style and the culture level. This thesis has the purpose to provide the basic material through analyzing the space composition and the visitor circulation of the theme museum and understanding the relativity of them so that the new theme museums can be designed in the right direction. So I chose the independence museum that opened with in recent 10 years, finally middle & small size's theme museum were selected. The results from the case study are as follow. Firstly, according to a result of analyzing the characteristics of space composition with the ratio of each part's area, space composition of each museum is mainly for the exhibition part, but rarely for the education part. Secondly, theme museums in Jeju have the limit of diversity of circulation method because they have not the free circulation method. Thirdly, the characteristics of space composition is divided into basic type, center-hall enter type, around the center-hall type and guidance type. Fourthly, by analyzing the characteristics of space composition and circulation method of traffic line, it's realized that selective circulation method was applied to basic type and center-hall enter type, and guidance circulation method was applied to around the center-hall type and guidance type.

• 한국항공우주학회지
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• 제42권11호
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• pp.974-980
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• 2014

소형 인공위성에 적용하기 위해 홀 추력기의 음극 전원공급기가 개발되었다. 이 전기추력기에는 마이크로웨이브 음극을 적용하였고 음극전원은 안정적인 동작을 위해서 필수적이다. 유량을 조절함에 따라 양극전류는 변하게 되고 이때 음극전류는 양극전류에 비례하여 제어되어야 한다. 그래서 양극전류에 비례하여 음극전류를 공급하도록 음극전원을 설계하였다. 또한 음극전원은 음극의 안정성을 위해 음극전류가 약 0.03A 이내에서 양극전류보다 더 흐르도록 세부 조정되었다. 음극전원에 대한 기능시험은 양극과 음극을 등가적인 부하로 구성하여 수행되었다. 안정적인 추력기 동작을 확인하기 위해서 진공 챔버에서 검증되었고 발사 이후에 우주환경에서도 정상적으로 동작하는 것을 확인하였다.

• 헤리티지:역사와 과학
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• 제56권3호
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• pp.234-252
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• 2023

본고는 일제강점기 덕수궁 공원화 준비 중 자행된 주요 정원의 변형 양상을 살펴보았다. 황궁으로 운용된 궁궐을 대중의 행락공간으로 개방하기 위해 1932년부터 1933년까지 공원의 면모를 갖추기 위한 조경공사가 곳곳에서 이루어졌기 때문이다. 특히 석조전 전정(殿庭), 함녕전 일곽 후원(後園), 즉조당 일곽 후원을 위시한 주요 정원 역시 대대적으로 변형되어 당초와 상이한 모습으로 탈바꿈되었다. 1932년 시행된 제1기 공사 중 석조전 정원에는 수반(水盤)이 설치되어 최초의 수공간(水空間)이 탄생하였다. 석조전 정원에 도입된 수반은 본래 창덕궁 인정전 전정에 소재한 구조물이었다. 1909년 무렵 인정전 전정을 훼손하며 설치된 수반이 덕수궁 공원화 준비 중에 석조전 정원으로 이설되었다. 인정전 구역에서 이설된 수반은 석조전 정원의 중심구역을 수공간으로 변형시킨 요인이었으며, 이후 수반을 대신하여 설치된 분수대가 오늘날까지 전해지고 있다. 함녕전 일곽의 후원 역시 제1기 공사 중에 새로운 모습으로 개조되었다. 본래 함유재와 함녕전 후원에는 화계(花階)로 불리는 계단식 화단이 존재했으며, 덕수궁 대화재 이후 시행된 중건공사에서 다시 정비되었다. 덕수궁 공원화 준비 중 정관헌 전면 공간에는 함유재와 함녕전 후원의 화계를 개조한 3단 축대가 신설되었다. 당시 조성된 축대는 덕수궁 개방 후 관람객에게 볼거리를 제공하기 위한 '모란원(牧丹園)'으로 활용되었고, 오늘날 '정관헌 화계'라는 이름으로 남아 있다. 즉조당 일곽의 후원은 1933년 제2기 공사에서 훼손된 사례이다. 함녕전 일곽의 후원처럼 당초 화계가 도입되었던 즉조당 일곽의 후원은 덕수궁 공원화 준비 중 일본식 정원으로 개조되었다. 화계가 철거된 자리는 별도의 지형 조작과 식재 공사가 병행되면서 축산(築山), 소로(小路), 경석(景石) 중심의 일본식 정원으로 치장되었다. 해방 이후 소소한 변화가 있었지만, 즉조당 일곽 후원의 현재 모습은 여전히 덕수궁 공원화 준비 중 조성된 일본식 정원에 근간을 두고 있다.

• 한국주거학회논문집
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• 제23권6호
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• pp.39-47
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• 2012

In this study, it was analyzed that, the way of securing publicity and privacy in family and type of public space of the Japanese contemporary detached house, by the composition type of family from one person home to four generation family home. Mostly the living room is made as open plan of LDK type. Mostly, the entrance hall is separate with living room. Even if the case of the entrance hall is connected with living room, it is planned to be recognized as entrance hall, by making entrance poach or connecting it with stair hall. In many case, the public space is designed as traditional Japanese style, such as wellhole style space (吹拔け), courtyard, and Japanese style room (和室). The Japanese style room is adjacent to living room, and used as the space of receiving guests. The wellhole style space and courtyard are recognized as the center of the house, and used as buffer space for ensuring privacy of each generation. The most different point between bachelor house and multi generation family house is another LDK space, living room or kitchen for parents' generation is made separately. Particularly there are many case of making separate small kitchen space, therefore it can be known that, the separation of kitchen space is recognized more importantly than that of living room. And there are many case of making separate entrance hall, two houses under one roof. The spatial composition like this can said as rational method of ensuring the privacy of each generation, and using the public space together as necessary.

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2006년도 한국우주과학회보 제15권2호
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• pp.61-61
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• 2006

• 한국항공우주학회지
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• 제39권1호
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• pp.84-89
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• 2011

소형인공위성의 우주추진체로 사용될 홀방식 전기추력기의 서브시스템으로 제논연료공급장치가 개발되었다. 제논연료공급장치는 연료저장탱크에서 추력기의 양극과 음극에 낮은 압력으로 연료를 공급하게 된다. 추력기는 양극과 음극에서 독립적으로 정밀한 연료의 유량제어를 요구하고 있다. 연료의 유량은 양극과 음극에 각각 위치한 오리피스와 차단밸브를 통해 축압탱크의 압력을 변경함으로서 조절된다. 본 논문은 제논연료공급장치의 부품선정을 포함한 설계와 성능검증 및 기능시험에 대한 내용을 다루고 있다.