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- 저자 : 최진성(Choi, Jin-Sung) (검색결과 166 건)
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Secondary Electron Emission of ZnO Films
최진성,Sung Kwang Lee,Joon Ho Choi,Eun Ha Choi,정난주,김윤기 한국진공학회 2015 Applied Science and Convergence Technology Vol.24 No.6
We investigated secondary electron emission characteristics of ZnO thin films prepared by pulsed laser deposition method with respect to the ambient oxygen pressure and the substrate temperature during the deposition. X-ray diffraction, UV-Vis spectrometry, atomic force microscopy, and γ-FIB were used to examine the structural, optical transmission, surface morphology, and secondary electron emission properties of the films, respectively. The secondary electron emission coefficient of the ZnO films increases as the O/Zn ratio of the films increases which was thought to result from either the ambient oxygen pressure increase or the substrate temperature decrease and as the grain size of the films decreases. It was confirmed that ZnO has better secondary electron emission characteristics than those of MgO, which is currently widely used as a material for PDP protecting layers.
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최진성(Jin-sung Choi),이상중(Sang-Joong Lee) 한국조명·전기설비학회 2007 한국조명·전기설비학회 학술대회논문집 Vol.2007 No.11월
無정전을 요구하는 특정대상의 중요 전기시설에서, 신뢰도 낮은 수전방식의 정전 가능성 대책으로 대용량의 UPS와 비상발전기를 설치 운영 중에 있다. 근래에 와서 상용전원과 발전기 또는 복수의 발전기에 CTTS (Closed Transition Transfer Switch)를 無정전 전환개폐기 전용으로 사용하고 있다. 본 논문에서 CTTS를 신뢰도 높은 상용2회선 수전방식의 수전변압기 2차 측에 적용한 새로운 無정전 전원설비 구축 방안을 제안하였다. 그 결과 수전설비 구성 간략화와, UPS비상발전기 설치 최소화로 공간 및 투자절감 효과를 얻을 수 있다. Large capacity UPS and emergency generators are being installed and operated at the specific target of important electric facilities that need uninterruptible power supply by the method of countermeasure against power failure for the less reliable incoming power method. Recently, CTTS(ClosedTransitionTransferSwitch) is being used as uninterruptible power transfer switch at the common sources of electricity, generator and multiple generators. In this paper, construction plans for uninterruptible power supply system has been suggested in which CTTS has been applied to the secondary of incoming power generator for reliable common dual system method. By briefing the construction of incoming power facilities, large capacity UPS, emergency generator installation space and investment saving effects can be achieved.
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근대이행기 전주 읍치의 종교적 장소성 변화 : 읍성의 해체와 종교경관을 중심으로
최진성(Choi, Jin Seong) 경인교육대학교 기전문화연구소 2020 기전문화연구 Vol.41 No.1
이 글은 전주 읍치를 사례로 전주읍성의 해체를 전후한 종교경관의 변화과정을 살펴보았다. 조선시대는 통치의 효율성을 높이기 위해 읍치를 표준화하였다. 읍치의 표준화 조건은 첫째, 풍수지리 사상에 입각한 자연지리적 조건과 유교 이념에 근거한 인문적 조건이 필수적이었고, 그 중심지는 읍성이었다. 둘째, 전국 모든 읍치에 책임자인 수령이 파견되었다. 셋째, 주요 읍치에는 읍성을 쌓아 지역의 방어체제를 강화하였다. 이처럼 표준화된 읍치는 유교적 인간성의 완성을 목표로 하는 공간이었다. 전주 읍치의 경우, 읍성 남동쪽의 승암산 일대를 중심으로 후백제와 고려를 거쳐 조선 후기까지 불교와 유교 및 천주교 경관 등이 유지되면서 종교 성지로서의 장소성이 관성처럼 유지되었다. 그러나 근대이행기에 전주 읍성이 해체되면서 그 내부 공간이 식민지경관들로 채워지면서 탈장소화되었다. 이와 함께 종교경관의 중심축 또한 승암산 일대에서 읍성 서쪽의 다가산 일대 및 해체된 읍성의 내부 공간으로 이동하였다. 이와 관련된 주요 종교들은 개신교를 포함하여 일본신도, 일본불교, 일본기독교회 등이었다. This article examines Jeonju, Jeollabuk-do as an example of the process of changing religious landscapes before and after the dissolution of town castle from a regional humanities perspective. The Joseon Dynasty standardized eupchi(邑治) to increase the efficiency of government. As for the standardization conditions of eupchi, first, natural geographic conditions based on FengShui and humanistic conditions based on Confucian ideology were essential, and the center was town castles. The leader, who is in charge, is dispatched to all towns nationwide. Third, the eupchi s defense system was strengthened by building town castles in major eupchi. There is a space aimed at the completion of Confucian human beings. In the case of Jeonju eupchi, Buddhism, Confucianism, and Catholicism were maintained until the late Joseon Dynasty through Post-Baekje and Goryeo, mainly around the area of Seungam Mountain(僧巖山) in the southeastern part of town castle, and the place as a religious sanctuary remained like inertia. However, when the town castles was dismantled during the modern early period, Jeonju eupchi was de-placed by a modern urban space and filled with colonial landscapes. At the same time, the central axis of the religious landscape moved from the area around Seungam Mountain to the area of Daga Mountain(多佳山) close to the Japanese settlement and the interior space of the disintegrated town castles. The major religions involved were Protestantism, including Japanese Shintoism, Japanese Buddhism, and the Christian Church of Japan.
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최진성(Jin-Seong Choi) 한국문화역사지리학회 2003 문화 역사 지리 Vol.15 No.3
This is about the geographical interpretation of the religious landscapes in Jeonju(全州) city. Finding these religious landscapes as geographical things with meanings, I can not help proposing some different theoretical basis. For example, the missionary strategies, the religious hegemony and the social-political contexts need to be considered for interpreting the religious landscape. Based on these kind of perspectives, this study aimed at interpreting the Jeondong CathedraI(殿洞聖堂) from the Pre-colonial Period to the Colonial(japanese Imperialism). This situation proposes that we have to understand the religious landscape as a thing with the social(i.e. political, social, cultural, religious, etc.) meanings. In other words, it has been served as a religious and cultural, even political text to be experienced and read for many researchers and Christians. With regard to these kind of theoretical proposes, I tried to adopt the interpretive approach to the Catholic landscape as a geographical text. Especially, I would like to emphasize that meanings of such landscapes, identified by written or oral texts must be related to the social contexts{the external factors) the missionary and strategies(the internal). Under the Japanese Imperialism, Christians who settled at the mountain valley eventually moved to different cities and towns. Many Christians could not but face the economic poverty and they were forced to move to the lowlands as farmers and manufacturers. Thes kind of changes of the sociaI, economic changes resulted in missionary strategies, for example, the establishment of the Cathedral like Jeondong Church in Jeonju. I tried to interpret some religious landscapes and places, considering the changes of the social contexts(the external) and the missionary strategies(the internal). So I have been interested the competition appropriation between the Jeonju castle(eup-seong, 邑城) and the the Catholic landscapes. The Japanese colonialism destroyed the Confucian landscapes which had symbolized the identity of the Choson(朝鮮) dynasty,constructing modern (western) landscapes instead. In other words, the spatial structures of the Choson dynasty had to be transformed into the colonial landscapes. Here we must doubt the scheme of the domination power(the Japanese Imperialism) breaking up the Choson dynasty. So, I paid attention to the relations of the jeonju castle and the Catholic landscapes. I could identify that the Catholic could not enter the city wall called Jeonju0seong. Aa the political, social, economic, and religious Cathedral(1914) came to be located in front of the south gate of Jeonju eup-seong. So it is important for us not to regard the changes of the locations of the religious landscapes as purely religious and spatial in meaning but the changes of the missionary(political and cultural) strategies. Through the changes of the locations of the religious landscapes, the Catholic church intended to show their religious status as a sort of Kerygma. Especially the height and direction of such landscapes need to be read as a competition with the Confucian landscapes. Because the Jeondong Cathedral was faced to Jeonju eup-seong, each landscape could have its entire view. So this kind of direction-relation could be read as a religious Kerygma and political, social status. After all, these kind of features of the landscapes must each be related to the religions' missionary strategies reflecting the social contexts. I would like to classify these situations into the social construction of the religious landscapes. Key words: religious landscape, Jeondong Cathedral, Catholic landscape, missionary strategy.
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