• The Bulletin of The Korean Astronomical Society
• /
• v.41 no.1
• /
• pp.64.2-64.2
• /
• 2016

지난 2015년 4월, 젊은 천문학자 모임(Young Astronomers Meeting, YAM)은 봄 정기총회를 가졌고 2015-16 시즌을 위한 임원진으로 회장 현민희, 부회장 안성호, 총무 박진태가 선출되었다. 이 외에도 각 학교별 운영위원으로 경북대학교 신지혜, 경희대학교 윤형식, 서울대학교 정하은, 세종대학교 허정은, 연세대학교 홍승수, 충남대학교 유현주, 과학기술연합대학원대학교 이혜란 회원이 활동 중이다. 현 임원진은 이번 임기 내 목표로 지금까지의 YAM 역사를 정리하고, 이를 공유할 수 있는 홈페이지를 구축하고자 하였다. YAM 역사 정리 부분에서는, 1991년 서울대학교에서 개최된 한국천문학회에서의 YAM 창단 이후의 모든 활동과 역대 임원진에 대한 서류 자료를 정리하고 홈페이지에 게시하였다. YAM 홈페이지 구축 부분에서는 지난 2015년 8월, 한국천문학회에 YAM 홈페이지 구축을 위한 제안서를 제출, 2016년 초에 학회의 승인을 받아 한국천문학회 홈페이지 서버에 YAM 홈페이지를 개설하였다. 이와 더불어 2016년 2월에 개최된 "2016 YAM & We Love Galaxies 공동 워크샵"을 통해 국내 대학원생들을 위한 워크샵을 개최하고 추후 지속적으로 진행할 수 있도록 노력하였다. 이번 포스터 발표를 통해 2015-16 시즌 동안의 활동 결과 보고와 2016-17 시즌 활동 계획을 논의할 것이다.

• Journal of the Korean Geographical Society
• /
• v.47 no.1
• /
• pp.1-12
• /
• 2012

Based on the study of the lineage groups around Gyeongju City and the migrants from North Korea, it is recognized that any one of Korean group identities has not been naturally formed over a long time, but socially constructed. One of the project for the Korean human geography orienting toward Korean Studies is to examine, from the place perspective, the complicated and contested identities that modern Koreans are today sharing individually as well as in a group. From such an examination. it can explore specifically the future shape of the Korean identity upon which everybody can agree. To make the project successful, Korean Human Geography needs to start from the study of a specific place that would expose the triangular relations among the three elements: identity, place, ideology or power.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.33 no.6B
• /
• pp.456-468
• /
• 2008

In this paper, we design Input/Output modules as a preference work for implementation of hybrid two stage AWG based WDM-PON and verify operations of each function modules through the logic simulation. This WDM-PON system provides service to 128 ONUs through 32 wavelength and one wavelength is shared for upstream transmission with four ONU while each wavelength is allocated to each ONU for downstream transmission. The designed WDM-PON MAC chip is based on sub-MAC which consists of one control unit and reception unit and four transmission unit. To design the reception and transmission unit of sub-MAC, we define the functions of the sub-MAC, pins of the modules, control signal and timing of each signal. We intend to design MAC chip with 1Gbps transmission rate. Thus the designed MAC chip is worked on 125MHz clock rate. We define FSM and design Input/Output modules with VHDL. The logic simulation of the modules is executed by the ModelSIM simulator.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2016.11a
• /
• pp.107-109
• /
• 2016

본 논문에서는 4K UHD 입력 영상을 실시간으로 부호화하기 위해 적용되는 GOP 단위 또는 IDR 주기 단위의 병렬 부호화 구조를 지원하도록 R-${\lambda}$ 모델 기반의 율 제어 방법을 개선하는 비트 분배(bit allocation) 방법을 제안한다. GOP 단위 또는 IDR 주기 단위의 병렬 부호화기 내에서 율 제어기를 작동시키는 경우, 계층적 B 구조에서 같은 계층에 있는 프레임 간에는 상호간에 얼마만큼의 비트를 소모 하였는지에 대한 정보를 공유 할 수 없기 때문에 기존의 비트 분배 방식으로는 비트 예산(bit budget) 관리가 불가능하다. 이를 해결하기 위해 본 논문에서는, 기존의 R-${\lambda}$ 모델 기반 율 제어 방법을 개선하여 부호화 순서에 의한 시간 순서 방향의 비트 예산 갱신 기반 비트 분배하던 방식으로부터, GOP 마다 비트를 할당한 후 계층적 B 구조에서의 계층이 깊어지는 방향으로 비트 예산을 갱신하여 비트를 분배하는 방식으로 율 배분 방식을 개선하였다. 실험 결과를 통해 R-${\lambda}$ 모델 기반 율 제어의 기존 비트 분배 방식보다 제안 방법에 의한 목표 비트 율 달성 오차가 감소함을 확인하였다.

• Journal of the Korean Society for Railway
• /
• v.14 no.6
• /
• pp.501-506
• /
• 2011

The study and techniques of system engineering have been applied to various fields including space-air, national defense division in advanced countries. Korea is currently in the early stages of introducing system engineering scheme in railway system and national defense division restrictedly. As theory and application of system engineering covers a wide scope, documents management and requirement analysis technology applied to establishment of standard and core unit development of the research target. The techniques which are historical management and trace among standards for establishment of standard are introduced using SE tools and participating agencies shared the information by constructing of database from all documents which are generated from the project. Through the functional analysis of the requirements for the intelligent station monitoring system in basic design stage, established requirements are verified and will be made official announcement as standard of the intelligent station monitoring system.

• Journal of Korean Society of Archives and Records Management
• /
• v.18 no.3
• /
• pp.49-70
• /
• 2018

This paper proposes a cloud system model for incorporating the existing Records Management System (RMS), Archives Management System (AMS), and Central Archives Management System (CAMS) into a cloud-based national records management system. To do this, research on concrete and stepwise ways to transform AMS, including CAMS, into a cloud computing environment was carried out. This study developed a cloud system design strategy and goal model to integrate national records-related systems into a single cloud system to share and utilize information resources, manage them efficiently, and reduce costs. In particular, this study analyzed technical security and operational security that are exposed in the cloud environment and suggested measures to solve them. As a result, cloud computing technology can be applied to achieve low-cost and high-efficiency effects.

• Journal of Digital Convergence
• /
• v.13 no.5
• /
• pp.151-158
• /
• 2015

The purpose of this study to understand collaborative process and the capabilities of the firm impact on innovation performance in convergence environment. To achieve the purpose, research model was empirically tested with a survey from 162 employees from 4 Korea manufacturing companies and 1 USA company. The data obtained from the survey were analyzed using Partial Least Squares (PLS). As a result, collaboration process, learning capability and operation capability have significant and positive impact on innovation performance. It is a meaningful result that the collaboration process improve the innovation performance of firms through the operation capability and the learning capability.

• Journal of Digital Convergence
• /
• v.9 no.4
• /
• pp.223-233
• /
• 2011

Smartwork will gradually move from the routine job to the knowledge based job. Therefore, supporting the personal level knowledge activities and the organizational level KM(Knowledge Management) will have a critical effect on the organizational performance. The purpose of this research is to develop strategies that revitalize the knowledge management for organizations that are trying to implement smartwork under such context. First of all, through the research results reviewed from areas such as current teleworking, telecommuting, mobile working and virtual organization, we identify the characteristics of the knowledge management for smartwork. And then, we develop and propose KM strategy that would supplement the existing knowledge management method and techniques in the smartwork environment. Academically, this paper emphasizes the further research needs about KM in terms of smart work. Operationally, it outlines and guides to the KM strategies for the government and enterprise planners that are designing smartwork.

• Journal of the Korean Chemical Society
• /
• v.57 no.3
• /
• pp.398-404
• /
• 2013

In this study, the analogies in the chemistry domain of middle school science textbooks developed under the 2007 revised National Curriculum were analyzed. A total of 235 analogies were found in 27 middle school science textbooks analysed, which means that one analogy per 10 pages was used on average. The number of analogies found in each textbook considerably varied depending on both publishing company and chemistry domain. Functional analogies, verbal and pictorial analogies, analogies with abstract target and concrete analog, enriched analogies, everyday contexts analogies, student-centered analogies, and analogies with low systematicity were frequently used. On presenting the analogies in the textbooks, the term analogy and description about the limitations of the analogies were rarely mentioned. In comparison with the analogies in the science textbooks developed under the 7th National Curriculum, the frequency of analogies per page was increased. There were positive changes in the aspects of representation, extent of mapping and artificiality. No differences, however, were found in the patterns of the other aspects.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
• /
• v.26 no.6
• /
• pp.571-581
• /
• 2008

With the advent of u-City(ubiquitous city) concept, the importance of urban management has been increased. GIS is a foundation for the efficient urban management and an essential technology for the development of u-City. u-City, which aims for convenient, safe, healthy, and comfortable life, provides diverse services based on advanced information technologies, and it will offer more services in the future. u-City integrated management platform enables the ease of service development, guarantees the quality of services for the resident, and provides organic information sharing. Moreover, the platform by integrating GIS and other common management functions, makes possible efficient urban management. In this paper, required functions of u-City integrated management platform for u-City service were analyzed. As a result, GIS module for management of street lights and supervision of fire was developed and the application usability of u-City integrated management platform was verified by service simulation.