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경주 분황사지 출토 청동기에 나타난 기술변천에 관한 연구
박장식,정영동 대한금속·재료학회 2005 대한금속·재료학회지 Vol.43 No.1
Ever since its first appearance in the Korean peninsula, bronze must have been playing an important role in Korean history. Due to the lack of metallurgical work, however, the archaeological study, based primarily on artifact typology, has produced little information on the technical aspects of bronze production in Korea. With this problem in mind and to understand the evolution of Korean bronze, the present study has examined microstructure of bronze artifacts excavated from the Boonhwang temple site in Kyongju. Three artifacts from other sites were also examined for comparison. Important evidence of technical transition was noticed in alloy composition and also in various thermo-mechanical treatments. The Sn content approaching the peritectic point in the Cu-Sn phase diagram and the removal of Pb from alloys were clearly evident with time. This change was coupled with the introduction, subsequent to casting, of special treatments such as quenching and forging. This study is to establish a general framework, though rough, that may be referenced and refined in future studies to the better assessment of Korean bronze technology with respect to its progressive development and its role in history.
Bronze Artifacts from Pocheon Banwol Fortress and the Korean High-tin Bronze Technology
박장식 한국문화사학회 2006 文化史學 Vol.0 No.26
The metallurgical examination of three bronze artifacts from an ancient military fortress found clues revealing the developmental process of a high-tin bronze technology in Korea. Each of them was given a distinctly different treatment, and could chronologically be arranged on the basis of the technical sophistication involved. The most primitive was made exclusively by casting, and the next was given a quench treatment after casting, and the most advanced was hot forged after casting and then quenched. The last was special in that it was excavated near the surface, had thin walls of 0.4mm to 1.1mm, and was made from an unleaded Cu-22 mass % Sn alloy. These traits all demonstrate that the last was made most recently when the high-tin bronze tradition, characterized by the specific alloy composition and the advanced thermo-mechanical treatments, was fully established.
박장식 서울대학교 국제지역원 1993 국제지역연구 Vol.2 No.4
미얀마는 동남아시아에 속한 국가들중에서 종족집단의 다양성에서 비롯되는 문제에 가장 민감한 곳으로 볼 수 있다. 미얀마정부는 영국에서 독립한 초기부터 연방제의 형태로 다양한 종족집단을 제도적으로 통합하고자 정책적으로 고려해 오고 있다. 몇몇 종족집단이 연방에 참여하고 있지 않지만, 그럼에도 미얀마는 표면적으로 국민통합을 유지하고 있고, 종족분리의 요구를 단호히 거부하고 있다. 이러한 종족문제는 미얀마의 향후의 정치구조에 큰 변화를 줄 수 있을 지도 모르는 중요한 관심사이다. 현재 연방제하에서 정치, 경제적 우위를 점하고 있는 버마족은 다른 소수종족집단과 역사적으로 복잡한 관계를 맺어 왔다. 오늘날에도 그런 역사적 과정이 되풀이 되고 있으며, 종족간의 관계에서 오는 문제도 더욱 복잡하게 되는 것이다. 영토개념이 불명확했던 전통적인 왕조시대에서 식민지 지배를 거쳐 새로운 개념의 국민국가에 속하게 된 여러 종족집단들은 종족성에 큰 변화를 겪게 되었고, 이러한 변화는 현재에 이르러 상호 갈등을 표출하는 원인이 되었다. 이 글은 종족분쟁을 겪고 있는 미얀마의 종족집단의 개념을 살펴 보고, 분쟁의 요인을 주위 환경의 변화에 따른 종족성의 변화에서 찾아 보고자 한다. It seems that the Union of Myanmar is all the Southeast Asian countries, most vulnerable to the problems arising from the issue of ethnic diversity. The central governmen, mainly led by the majority Burmans, has tried to integrate a variety of ethnic groups in federal institutions since independence. AS the monorities have claimed greater autonomy, the result has been a continuous succession of insurrections. The ethnic problems in Myanmar, however, are still a point of major concern, having even given rise to changes in its political structure. The Burmans, who occupied the center in the union, maintained different historical relationships with each of these ethnic group. Such historical processes are reflected inthe present, complicating the matter even more. This paper shows how to define the complex concept of ethnic group in a Sourtheast Asian society like Myanmar. Also we seek the fact that ethnic groups in Myanmar have experienced great alternations especially in their ethnicity through the historical processes-from the period of dynasties via the colonial rule to the nation-state-and continue to know of how ethnic conflict has been arisen in the nation-state.
지능형CCTV시스템 성능평가를 위한 영상DB와 영상 주석도구 개발
박장식,이승재,Park, Jang-Sik,Yi, Seung-Jai 한국전자통신학회 2014 한국전자통신학회 논문지 Vol.9 No.7
In this paper, an evaluation of intelligent CCTV system is proposed with recording and implementation video and video DB. Videos for evaluation are recorded by dividing far, mid and near zone. Video DB has video recording information, detection area, and ground truth in XML format. A video annotation tool is proposed to make ground truth effectively in this paper. A video annotation tool writes ground truths of videos and includes evaluation comparing system alarms with ground truths. 지능형CCTV시스템 성능평가를 위한 영상취득 및 영상DB 구축 그리고 평가방안을 제시한다. 영상취득은 각 시나리오에 대하여 원거리, 중거리, 근거리 영역을 설정하여 취득하였다. 영상DB에는 영상녹화정보, 검출영역, 실측경보를 XML형식으로 기록한다. 본 논문에서는 영상DB 제작을 위한 효율적인 실측정보 기록을 위한 영상 주석도구를 제안한다. 영상 주석도구는 특정 영상에 대하여 실측정보를 기록하고 지능형CCTV시스템의 출력경보와 비교하여 검출 성능을 평가하는 기능을 포함한다.