• 정보과학회 컴퓨팅의 실제 논문지
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• 제22권8호
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• pp.393-398
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• 2016

군집 적응형 시스템(Collective Adaptive System, CAS)은 다수의 에이전트를 포함하는 적응형 시스템으로, 에이전트들 간의 헙업을 통해 목표를 수행한다. 협업을 기반으로 시스템의 목표를 수행하는 CAS는 복수의 에이전트들 간의 상호작용에 대한 테스트가 필수적이다. 본 연구에서는 CAS를 테스트하기 위한 하나의 방법으로 태스크 기반의 테스트 모델을 적용하여 모델 기반 테스팅을 하는 것에 대한 타당성을 분석한다. 분석을 위해 CAS의 한 사례로 스마트 홈 시스템을 적용하였고, 그 결과 태스크 모델을 수정 및 확장하면 CAS의 목표 달성 여부를 판별할 수 있는 체계적인 테스트 케이스 생성이 가능한 것을 확인하였다.

• 전기학회논문지
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• 제59권2호
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• pp.225-231
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• 2010

As growth of operational complexity in power systems, necessity of information integration between automation systems such as EMS, SAS, DAS and renewable energy sources has been increased. This paper proposes a new information integration architecture between power automation systems based on web service technique. Loosely coupled feature of web service system can provide more flexible and reliable way to exchange information. Communication testing on the demonstration system has been performed to establish the feasibility of the proposed architecture.

• 융합보안논문지
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• 제18권5_1호
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• pp.3-9
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• 2018

본 연구의 목적은 금융기관 대상 고유식별정보 암호화 규제 및 감독에 대한 효과적인 대응방법을 제시하고, 현재의 문제점 그리고 앞으로 나아가야 할 방향을 제시하는 것이다. 금융기관에서는 법규준수를 위하여 다수의 개인정보처리시스템 중 DB시스템을 중심으로 대응하고 있어 그 외 다수의 어플리케이션시스템 내 고유식별정보를 포함하고 있는 데이터 파일의 경우 암호화 등 추가적인 조치가 필요한 것으로 조사되었다. 본 연구에서는 제도적, 관리적, 기술적 실효성 확보 방안을 결론에서 제시 하였다.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2004년도 추계학술대회
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• pp.242-248
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• 2004

Personalized reminder systems have to identify the user's current needs dynamically and proactively based on the user's current context. However, need identification methodologies and their feasible architectures for personalized reminder systems have so far been rare. Hence, this paper aims to propose a proactive need identification mechanism by applying agent and semantic web technologies and RFID-based context subsystem for a personalized reminder system, which is one of the supporting systems for a robust ubiquitous service support environment. We have created a prototype system, RFID-based NAMA (Need Aware Multi-Agent), to demonstrate the feasibility of the methodology and of the mobile settings framework that we propose in this paper. NAMA considers the context, user profile with preferences, and information about currently available services, to discover the user's current needs and then link the user to a set of services, which are implemented as web services.

• 한국지진공학회:학술대회논문집
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• 한국지진공학회 2000년도 추계 학술발표회 논문집 Proceedings of EESK Conference-Fall 2000
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• pp.198-205
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• 2000

In this study, an integrated damage identification system (IDIS) using modal information to detect damage in structures is presented. The main dobjective is to develop a system of softwares that facilitates detecting damage locations and estimating damage severities in bridges. Firstly, theoretical background for IDIS is outlined. Secondly, a GUI-based IDIS software scheme are programmed. Finally, the feasibility and applicability of the IDIS software are experimentally demonstrated using small-scaled plate-girder models.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2000년도 가을 학술발표회논문집
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• pp.24-31
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• 2000

An integrated damage identification system (IDIS) using modal information to detect damage in structures is presented. The objective of this study is to develop a system of softwares that facilitates detecting damage locations and estimating damage severities in bridges. Firstly, the theoretical background for IDIS is outlined. Secondly, a GUI-based IDIS software is programmed. Finally, the feasibility and applicability of the IDIS software are experimentally demonstrated using small-scaled plate-girder models.

• 한국정보통신학회논문지
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• 제17권1호
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• pp.101-109
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• 2013

e-Navigation 환경에서는 선박에서 발생하는 다양한 정보를 통합 관리할 수 있는 시스템이 요구되고 있다. 이러한 시스템에 적용할 수 있는 표준으로 IEC 61162-450이 있다. 본 논문에서는 IEC 61162-450 표준을 기반으로 선행 연구된 여러 요소기술을 적용하여 선박 통합 정보시스템의 아키텍처를 설계하고 구현하였다. 이러한 요소기술에는 NMEA 2000 게이트웨이, 무선 센서 게이트웨이, 데이터베이스, 모니터링 어플리케이션 등이 있다. 또한 본 논문에서는 시험 및 검증을 통하여 구현한 시스템의 유용성을 확인하였다.

• 산업공학
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• 제12권4호
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• pp.557-566
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• 1999

This paper considers a door-to-door service system in which pickups or deliveries are performed by a trip of a single vehicle. Each customer request specifies the quantity of the load transported, the location, and the time window within which it is to be picked up or delivered. Since the system is demand responsive, i.e., new or emergent requests become available in real-time, the current vehicle route has to be reconstructed to include these requests. In this case, only continuous vehicle tracking enables control over the requests and ensures that the requests are satisfied on time. This paper suggests a pilot pickup/delivery management system integrating a geographic information system(GIS) and a global position system(GPS) to efficiently deal with such a dynamic environment. The GIS offers a way of displaying the vehicle route on digital maps for the region under concerned. Also displayed is the current location of the vehicle obtained from the GPS. A heuristic algorithm is used to dynamically determine the vehicle route. A practical example is provided to show the feasibility of the system.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2009년도 춘계학술대회 논문집
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• pp.460-462
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• 2009

This study has analyzed the scale, location, resource potential and feasibility of offshore wind farm scientifically and systematically based on the national wind map and GIS (Geographic Information System). For long-term wind power development, this study pursues siting strategy building, selection of target area and deciding development priority as well as the presenting a basis for assessment that are necessary for policy decision making by making theme layers under GIS environment. According to the analysis after organizing technological development by stages, even if only the most suitable sites are developed among the area of offshore wind farm candidates that can be developed under the current technological standard, it has been evaluated as being able to develop about 3 times of the wind power dissemination target until 2012. It is expected that about 5% of territorial water area can be developed in a short-term future while the southern offshore area possessing relatively favorable wind resource than the western offshore has been identified as the most feasible site. While about 23% of territorial water area has been classified as potential area for offshore wind farm development in a long-term future, even Jeju Island and offshore of Ulsan possessing excellent wind resource have been analyzed as feasible sites. The feasibility assessment of offshore wind farm development established by this study is expected to assist national strategy building for accomplishing the wind power dissemination target.

• 천문학회보
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• 제42권2호
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• pp.52.2-52.2
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• 2017

Recent success of gravitational wave (GW) detection by LIGO opened a new window to expand our understanding of the Universe. In addition to LIGO, several other developments are going on or under planning. However, each of these detectors has a specific sensitive frequency range. There is a missing frequency band, 0.1-10 Hz, where detectors loose sensitivity significantly due to Newtonian noise on the Earth. We introduce a plan to develop a Superconducting Low-frequency Gravitational- wave Telescope (SLGT), which can observe massive black holes in 0.1-10 Hz. The SLGT system consists of magnetically levitated six test masses, superconducting quantum interference devices (SQUIDs), rigid support frame, cooling system, vibration isolation, and signal acquisition. By taking the advantage of nearly quantum-limited low-noise SQUIDs and capacitor bridge transducers, SLGT's detection sensitivity can be improved to allow astrophysical observation of black holes in cosmological distances. We present preliminary design study and expected sensitivity, and its technical feasibility.