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SDSS 자료를 이용한 z<0.01 필드은하의 자외광 특성
이웅,이수창,김석,이영대,박민아,이원형,Lee, Ung,Lee, Su-Chang,Kim, Seok,Lee, Yeong-Dae,Park, Min-A,Lee, Won-Hyeong 한국천문학회 2012 天文學會報 Vol.37 No.2
Sloan Digital Sky Survey (SDSS) DR7 분광자료를 이용하여 z < 0.01에 존재하는 필드(field) 은하 505개를 선별하였다. SDSS의 컬러 영상을 이용하여 필드은하들의 형태(morphology)를 타원은하/왜소타원은하, 렌즈은하/왜소렌즈은하, 나선은하, 그리고 불규칙은하로 분류하였으며, 이들 은하들에 대한 측광을 수행하였다. 한편, Galex Evolution Explorer (GALEX) 자외광 영상으로부터 선별된 은하들에 대한 자외광 측광도 수행하였다. 서로 다른 환경에 있는 은하들의 최근 별탄생 활동이 어떻게 변화하는지 파악하기 위하여 처녀자리은하단 (Virgo cluster)에 있는 은하들과 비교하여 필드은하들의 자외광-가시광 색-등급 분포를 조사하였다. 처녀자리은하단 은하들에 비하여 필드은하들은 작은 자외광-가시광색지수를 가지는 만기형 은하들의 비율이 높았다. 특히, 조기형 필드은하들의 색지수 값이 처녀자리은하단 조기형 은하들에 비해 전반적으로 더 작은 값을 나타내고, 이 특징은 질량이 작은 왜소은하에서 더욱 크게 나타남을 알 수 있었다. 한편, 환경적 효과를 거의 받지 않는 필드은하들은 환경적 효과가 큰 은하단 은하들의 진화 연구에서 환경적 효과의 크기 및 기작을 규명하는 기본 자료로 사용될 수 있음을 토의하고자 한다.
金周洪(Kim Ju-Hong),李樹昌(Lee Su-Chang),金成俊(Kim Sung-Jun) 역사실학회 2002 역사와실학 Vol.23 No.-
I have investigated the facts concerning the equipment for 7 signal fire stands in Kyungsang Province that were described in various geographical literature. The Kyungsang Province includes the areas of Busan Daegu, Ulsan, which is located in Kyungnam Province, and Kyungbuk In Kyungsang Province, there were more than 160 signal fire stands and they are of very significant importance. It is suspected that these signal fire stands were installed in full swing in the middle and late Koryo Dynasty when Japanese pirates infiltrated most frequently on the coastal areas of Korea. According to the facts and figures contained in geographical books published since the late Joseon Dynasty, all kinds of auditory and visual signal methods were used, including drums(鼓), horn trumpets(戰角), fire arrows(火箭), large white f1ags(大白旗), etc. In the late Joseon Dynasty, the visual equipment such as torches and fumes was mainly used in the early period. Also, in the late period, more than two three-hole guns(三穴銃) were essentially equipped in preparation for emergency cases in addition to the guns called Jo-chong(鳥銃) and Seungia-chong(勝字銃). This paper has summarized the facts and figures on signal fire stands that are of academic value. This has been accomplished through various researches and investigations made so far in order to set the research direction for the signal fire stands in this area. In the body of the paper, I have reviewed five geographical books and the "Nammok Bongsoo Byoljangseomok"(南木烽燧別將書目) in which equipment for signal fire stands in Kyungsang Province were recorded. Furthermore, I have presented relevant historical materials with arranged tables in order to figure out the significance of signal fire stands in Kyungsang Province and their current management status. As this research on signal fire stands in Kyungsang Province, focusing on equipment, is in the initial stage. The issues that have not been dealt with in this field should be investigated in further studies.
韓國的 曲線에 關한 分析 考察(Ⅲ) : 高麗時代 甁形 土器와 高麗時代 甁形 磁器 및 李朝時代 甁形 粉靑磁器의 代表標準外側曲線의 比較
이수창 安東大學安東文化硏究所 1989 安東文化叢書 Vol.1 No.-
본 연구 (Ⅰ), (Ⅱ)를 통하여 고려 순청자기시대의 초기인 1050년대로부터 시작하여 이조 분청자기시대의 말기인 1600년경까지의 사이에 제작된 병형자기의 외측곡선을 측정한 바 있는데, 이번 연구(Ⅲ)은 1050년보다 이전인 소위 나말려초년대(900∼1000)에 까지 소급한 시기부터 만들어지기 시작하였다고 보는 병형토기의 외측곡선의 추출과 연구 (Ⅰ), (Ⅱ)와의 비교 고찰을 그 주된 내용으로 하였다.
한국적교선에 관한 분석 고찰(Ⅱ) : 고려 병형자기와 이조 병형 분청 자기의 대표표준외측곡선의 비교
이수창 安東敎育大學 1971 論文集 Vol.4 No.1
1. Introduction. Since the old Greek Period, men has been making an effort to find out the some scientific principles from arts. So many important parts of arts have been controlling by those principles that I think we have to appeal our reasonable judgement and observation in analyzing the Korean unique arts. 2. Purpose. The Main purpose of this study is to find out the Korean unique artistic thoughts of Korean and is to contribute the development of Korean arts. Finding out the typical outer curved line which appeared on the Bun Chung vases of the Lee Dynasty and by comparing the curved line of Lee Dynasty with that of the former, I want to know the consistent artistic thoughts on Korean curved line. 3. Conclusion. The outer curved line which was obtained from the Mae Byung vases in the Study(I) and the outer curved line which was obtained from the Bun Chung vases in this main discourse are very coincided with their shape if they are piled up each other in reverse. In spite of many differences such as 4 centuries distance and social background between two vases, I found that the coincident curved lines of these vases came from the consistent artistic thoughts of Korean.
이수창 安東敎育大學 1968 論文集 Vol.1 No.1
The vases which were made in Koryeo period and Lee dynasty are the most famous in the world for their shapes, and especially for their beautiful curves. Our ancestors created brilliant formative cultures in the past. Nevertheless, they have not been succeeded by us for the lack of the scientific method of their transmission. The object of this study is to show mathematically the outer curved line commonly represented on the vases.