• Journal of Korean Library and Information Science Society
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• v.45 no.2
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• pp.73-92
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• 2014

A school library manifesto means the policies and rules on school libraries and includes the direction which they should follow and the criteria which school libraries should keep. Compared the school library manifestos of IFLA/UNESCO, IASL with that of Japan, the school library manifestos of IFLA/UNESCO are constituted with mission of the school library, funding legislation and networks, goal of the school library, staff, operation and management, implementing manifesto etc. and underline funding legislation and networks. The IASL policy statement on school libraries includes functions, materials, facilities, personnel, lifelong education, skills, literacy development, government and public support etc. and emphasizes lifelong education, skills, literacy development. The school library manifesto of Japan includes philosophy, functions, staff, material, facilities and management etc. and highlights philosophy. As a result of comparison and analysis of the school library manifestos of IFLA/UNESCO, IASL and Japan with that of Korea, the school library manifesto of Korea needs to comprise mission, facilities, staff, lifelong education, skills, literacy development, funding legislation, operation and management, government responsibility for implementing the manifesto, etc. by accepting the components in the manifestos of advanced countries, stressing the educational roles of school libraries and by separating the educational area from others.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.5
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• pp.981-988
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• 2023

As the usage of unmanned aerial vehicles expands, the development and the demand of related technologies are increasing. As the frequency of operation increases and the convenience of operation is emphasized, the importance of related autonomous flight technology is also highlighted. Establishing a path plan to reach the destination in autonomous flight of an unmanned aerial vehicle is important in guidance and control, and a technology for automatically generating path plan is required in order to maximize the effect of unmanned aerial vehicle. In this study, the optimization research of path planning using rapid-exploring random tree method was performed for increasing the effectiveness of autonomous operation. The path planning optimization method considering the characteristics of the unmanned aerial vehicle is proposed. In order to achieve indexes such as optimal distance, shortest time, and passage of mission points, the path planning was optimized in consideration of the mission goals and dynamic characteristics of the unmanned aerial vehicle. The proposed methods confirmed their applicability to the generation of path planning for unmanned aerial vehicles through performance verification for obstacle situations.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 1998.12a
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• pp.389-401
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• 1998

역할기반 접근제어 정책은 정보보호를 위한 단순한 접근제어 수단으로서 뿐만 아니라, 사용자와 다양한 응용 소프트웨어로 구성된 환경에서 편리한 권한 관리 기능을 수행할 수 있어 일반적인 기업환경과 컴퓨터 운영체제, 데이터베이스와 같은 시스템에서 채택, 활용되고 있다. 본 논문에서는 역할기반 접근 제어 정책을 채택한 정보 시스템 환경에서 시스템이 관리하는 정보의 무결성 보장을 위한 세션기반 임무분리 특성을 제안하고, 정형적 기술방식을 Z 언어를 이용하여 표현하였다. 또한 제안된 특성을 기반으로 한 응용 프로그램 명세 요소를 이용한 응용 프로그램 설계 및 실행가능성 확인기능, 전체 시스템의 운영 구조에 대하여 기술하였다.

• The Bulletin of The Korean Astronomical Society
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• v.37 no.2
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• pp.171.1-171.1
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• 2012

많은 비용을 투입하여 개발된 위성은 성공적인 발사를 통해 궤도 진입을 하며, 초기 운영을 통해 안정적인 운영이 가능하다. 발사 직전부터 위성의 최초 접속 시간 사이에 발사장 점검 팀과 위성 운영 팀 간의 업무 협조에 따라 초기 위성의 궤도 확인, 통신 링크 형성 및 상태 확인 등 정상적인 임무 수행 가능 여부의 성패가 결정된다고 해도 과언이 아니다. 이를 위해 참여한 각 팀 간의 유기적인 업무 협조 절차를 수립하고, 사전 예행 연습 (리허설)을 통한 세부 절차의 보완이 필수적이다. 본 논문은 위성의 발사 당일 작업을 위해 수립한 세부 절차를 중심으로, 사전 점검을 통한 보완을 위해 수립한 리허설 계획을 설명한 후 그 결과에 따라 확인된 개선 사항에 대해 기술한다. 특히 발사업체에서 제공하는 시설 및 시스템 점검 사항, 리허설 계획 수립 시 고려할 사항 및 리허설 수행 후 개선 사항들을 정리한다.

• Proceedings of the Optical Society of Korea Conference
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• 2000.08a
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• pp.54-55
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• 2000

해양관측카메라 Ocean Scanning Multi-spectral Imager (OSMI)를 탑재한 다목적 실용위성(KOMPSAT) 1호기가 1999년 12월 21일 발사되었다. OSMI는 유연한 임무 수행을 위해 궤도운영중에 관측파장대역 선택과 응답 이득 조정이 가능하도록 설계되었다. 또한 OSMI는 기기 노화 등에 따른 성능 변화 감지 및 보정을 위해 태양광 보정을 궤도운영중 수행한다. 여러 이득 단계에 대해 발사후 복사 응답 특성을 기기 보정 측면에서 연구하였다. 발사전 실험실 성능 측정 결과에 근거하여 발사후 초기 운영 단계에서 측정한 태양광 보정 자료의 선형 curve fitting을 통해 발사후 복사 응답 특성을 분석하였다. 이 분석은 OSMI 기기 보정 및 영상 품질 이해에 유용할 것이다.

• Journal of Satellite, Information and Communications
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• v.1 no.2
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• pp.16-24
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• 2006

As a multi-mission GEO satellite, COMS system is being developed jointly by KARI, ETRI, KORDI, KMA, and industries from both abroad and domestic. EADS ASRTIUM is the prime contractor for manufacturing the COMS. ETRI is developing the COMS Ka-band payload and SGCS with the fund from MIC. COMS Satellite Ground Control System (SGCS) will be the only system for monitor and control of the satellite in orbit. In order to fulfill the mission operations of the three payloads and spacecraft bus, COMS SGCS performs telemetry reception and processing, satellite tracking and ranging, command generation and transmission, satellite mission planning, flight dynamics operations, and satellite simulation, By the proper functional allocations, COMS SGCS is divided into five subsystems such as TTC, ROS, MPS, FDS, and CSS. In this paper, functional design of the COMS SGCS is described as five subsystems and the interfaces among the subsystems.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.44 no.4
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• pp.363-372
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• 2016

SIGMA(Scientific cubesat with Instruments for Global Magnetic field and rAdiation) CubeSat has been developed for magnetic field measurement of the Earth and space radiation measurement at Kyung Hee university. The flight software plays important roles in controlling the satellite and processing the data in the space mission. In this paper, the Flight Software has been implemented to process all the tasks in the one thread without RTOS(Real Time Operating System). This is an effective mothed not only to concentrate the space mission of CubeSat but also to reduce the overhead of the Flight Software by considering the mission perform procedures and the system control methods.

• Journal of Engineering Education Research
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• v.15 no.2
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• pp.10-19
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• 2012

The purpose of this study was to analyze job of e-learning quality managers based on the DACUM(Developing A Curriculum) method and to construct a task model of e-learning quality managers. A DACUM committee was composed to analyze job of e-learning quality managers and the committee members were total 12, those are one facilitator, 9 panel members, one recorder and one coordinator. The major findings of this study were as the followings; first, the number of job duty of e-learning quality managers were total 7, which were service planing, infrastructure building, of content developing, service evaluating, administration for quality managing, self-improvement. And total tasks of job of e-learning quality managers were 61. Second, 14 knowledge, 21 skill, 19 attitudes for e-learning quality managers were analyzed. Third, a task model of e-learning quality managers was constructed based on the results of DACUM job analysis.

• Journal of Aerospace System Engineering
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• v.17 no.4
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• pp.104-109
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• 2023

The Cube Satellite Contest has been held six times as of August 2023, and a total of 21 teams have been selected. Fifteen Cube Satellites selected in previous contests were successfully launched and entered into low-Earth orbit. The six Cube Satellites selected in the sixth contest in 2022 are currently undergoing detailed design, and are scheduled to be launched in 2025 using a Korean launch vehicle. In this study, we analyzed the initial operation reports submitted by the selected teams of the Cube Satellite Contest in 2012, 2013, 2015, 2017, and 2019 to assess mission performance and identify causes of mission failure. Based on the submitted reports, an improvement scheme to enhance mission success for future Cube Satellites is proposed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.670-672
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• 2021

The video streaming technologies are used in diverse areas including aerospace. UAV (Unmanned Aerial Vehicle) is still being developed so that we are able to use the UAV not only in military areas but also in civil areas. Remotely monitoring and observing a certain area is possible via using video streaming service based on the UAV nowadays. However, UAV is vulnerable to weather conditions, plane's weight, battery capacity and so on, which makes many restrictions of flight time and video streaming services. In order to prolong the video streaming services, we can use a number of UAVs, fly them one by one, and switch video streaming channels. In the paper, we propose the methods how to interchange UAVs' missions and their video streaming channels to provide seamless video stream services.