• The Bulletin of The Korean Astronomical Society
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• 제41권2호
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• pp.60.1-60.1
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• 2016

To obtain a reliable estimate of the cold dark matter (CDM) substructure mass function in a dense cluster environment, one needs to understand how long a merged halo can survive within the host halo. Measuring disruption time scale of merged halos in a dense cluster environment, we attempt to construct the realistic CDM mass function that can be compared with stellar mass functions to get a stellar-to-halo mass ratio. For this, we performed a set of high-resolution simulations of cold dark matter halos with properties similar to the Virgo cluster. Field halos outside the main halo are detected using a Friend-of-Friend algorithm with a linking length of 0.02. To trace the sub-halo structures even after the merging with the main halo, we use their core structures that are defined to be the most 10% bound particles.

• Journal of the Korean Society for Library and Information Science
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• 제27권
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• pp.365-390
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• 1994

The article sets forth a problem on international exchange and cooperation In the field of library and information science in the People's Republic of China from engles of academic and publication's exchange, It points out international exchange and cooperation between China and Korea should be developed from international exchange of publications and interlibrary loan to openning up standard, authority and current database on publications step by step. China and Korea should supply the database to all of the world, In order to come up to shared resources, the author has compared the Descriptive Cataloguing Rules for Western Language Materials, and the Bibliographical Description for Monographes with the Korean Cataloguing Rules for Description, and analyzed their different. In the end, the article presents the result that the documentation standardzation is the only way of accomplishing shared resources in the world from indentity of description for publications and materials, and unity of cataloguing rules.

• The Bulletin of The Korean Astronomical Society
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• 제43권1호
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• pp.46.2-46.2
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• 2018

Using the high-resolution observational data obtained by the Hubble Space Telescope, we found that there is the diversity of the radial trends of blue straggler stars (BSSs) in young massive clusters (YMCs) in the Large Magellanic Cloud unlike BSSs in old globular clusters usually showing the segregated radial distributions. To understand the dynamical processes that lead to the none-segregated or even inversely-segregated radial distribution of BSSs, we performed direct N-body simulations for YMCs. Our numerical simulations show that the presence of black hole subsystems inside the cluster centre can significantly affect the dynamical evolution of BSSs and eventually lead to none- or inversely-segregated radial distribution of BSSs.

• Journal of Korean Neurosurgical Society
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• 제60권3호
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• pp.375-379
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• 2017

Midbrain gliomas are relatively rare neoplasms with a generally benign prognosis, with dissemination or metastasis not previously reported. We describe here a woman, in whom magnetic resonance imaging scans showed hydrocephalus and a tegmental lesion in the upper aqueduct. Endoscopic third ventriculostomy and biopsy were performed; during surgery, a second small lesion was observed in the infundibular recess. Histologically, the two lesions had the characteristics of low grade astrocytoma, suggesting that the midbrain astrocytoma may have been disseminated via the cerebral spinal fluid to the infundibular recess. Postoperatively this patient received radiotherapy for nearly one month. Although patients with these tumors are not usually administered adjunctive therapy, radiation and, combined modality therapy, including surgery, radiotherapy, and chemotherapy, may be beneficial in patients with midbrain gliomas with dissemination.

• Asian Pacific Journal of Cancer Prevention
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• 제14권2호
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• pp.1159-1163
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• 2013

International meetings on various aspects of cancer- its etiology, its diagnosis, its treatment, its palliation, and its prevention and control are held frequently. Many have similar themes, and many seek and receive the same speakers and audiences. A fundamental question arises: what difference does any individual meeting/congress/conference make or add to our understanding of the relevant issues? While many meetings conduct evaluations at the end of the Congress, few use evaluation as a tool to guide design, implementation, and evaluation of both short and long term impacts, and address the question of "what difference did the Congress make". The International Cancer Control Congresses, which are held biennially in different regions of the world, took the opportunity to use evaluation in this way, and ask the relevant questions. This paper describes that evaluation session of the ICCC4, held in Seoul, Korea in November 2011, which was part of the larger evaluation issue.

• Journal of the Korean Mathematical Society
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• 제43권6호
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• pp.1269-1287
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• 2006

As a continuation of computing the zeta function of a regular covering graph by Mizuno and Sato in [9], we derive in this paper computational formulae for the zeta functions of a graph bundle and of any (regular or irregular) covering of a graph. If the voltages to derive them lie in an abelian or dihedral group and its fibre is a regular graph, those formulae can be simplified. As a by-product, the zeta function of the cartesian product of a graph and a regular graph is obtained. The same work is also done for a discrete torus and for a discrete Klein bottle.

• Proceedings of the Korea Contents Association Conference
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• 한국콘텐츠학회 2014년도 추계 종합학술대회 논문집
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• pp.73-74
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• 2014

일정한 면적을 가지고 있는 문화재지역은 문화재보호구역에 대한 관리가 중요하다. 본 연구에서는 회전익무인기를 이용하여 명승지 내부의 경로를 따라 경로비행 루트를 설정하고 정사투영촬영된 사진과 연속지적자료의 중첩을 통해 대단위 면적으로 구성되는 문화재내부의 지적별 공간정보를 확인할 수 있었다. 회전익무인기의 주기적인 활용을 통해 문화재지역에 대한 지속적인 모니터링과 향후 역사문화환경보존지역의 현상변경 관리 등에도 널리 활용될 수 있을 것으로 판단된다.

• Proceedings of the Korea Contents Association Conference
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• 한국콘텐츠학회 2017년도 춘계 종합학술대회 논문집
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• pp.57-58
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• 2017

중국 경극에서 얼굴에 다양한 분장을 하는 것을 검보라 하며, 극 중에서는 다양한 상징성을 갖는다. 검보는 민족적 특색을 내재하며, 극중 캐릭터를 위한 "영혼의 화면"이라 불린다. 반면, 일본 노극은 가면을 쓰고 연기하는 독특한 고전 가무극으로 히타멘(直面, 가면을 쓰지 않음)과 가면을 쓰는 공연으로 나뉘며, '유현(幽玄)의 예술" 이라고 불린다. 이러한 경극의 검보와 노극의 가면은 애니메이션에 캐릭터에 차용되며, 극의 서사와 상징성을 드러내는 매개 역할을 하고 있다. 이에, 본 연구에서는 경극의 검보와 노극의 가면이 연출된 애니메이션 영화를 중심으로 사례 비교연구를 진행하고자 한다.

• Proceedings of the Korea Contents Association Conference
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• 한국콘텐츠학회 2013년도 춘계 종합학술대회 논문집
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• pp.95-96
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• 2013

본 연구는 근대이후 서울시 성북동의 문화재와 주변 경관 변화과정과 원인을 분석하고자 하였으며 시대별 폐쇄지적도를 이용한 필지 분석과 문헌자료를 참고하여 연구하였다. 경관은 대체로 제도적 요인과 사회경제적 요인에 의해 변화가 생기는 것을 알 수 있었다. 근대 이후 서울의 도시계획이 성북동에도 영향을 미쳤으리라 예상되며, 자본주의 경제체제 확립이 그 배경이 된 것이라 판단된다.

• Proceedings of the Korea Contents Association Conference
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• 한국콘텐츠학회 2013년도 춘계 종합학술대회 논문집
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• pp.105-106
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• 2013

본 연구는 명승경관자원 발굴에 있어 명승주변에서 조망되는 경관의 현황을 객관적으로 검토할 수 있게 함으로써, 전국 지자체를 비롯한 문화재 담당 실무자들이 명경경관자원의 발굴 및 관리를 용이하게 하고자 하였다. 수치지형정보를 이용하여 3D시뮬레이션을 실시함으로써 조망경관의 형태를 분석하였으며, 시뮬레이션형태에서 가시권분석을 실시함으로써 가시영역에 대한 경관형태를 직접적으로 확인 할 수 있었다. 이러한 분석은 명승의 경관자원 발굴에 있어 객관적인 근거를 제시할 수 있을 것으로 예상된다.