• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2002년도 춘계종합학술대회
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• pp.205-208
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• 2002

국제-국내간의 해저 광케이블을 설치할 때, 해양조사는 사전 정확한 해저지질 및 수심상태를 파악한다. 그리고 안전한 경로를 선정 및 해저 광케이블 매설을 위해서 용이한 위치론 확보하는 작업이다. 또한, PLGR는 광케이블 루트상의 해저 면의 해양 오염 물질(로프, 와이어, 그물)을 사전에 제거하여 광케이블의 해저면 안착을 용이하게 한다. 더불어서 Plough 및 ROV 매설 작업 시 매설작업 성능 향상 및 매설장비의 보호시킬 수 있는 작업이다. 따라서 된 논문은 해저 광케이블 건설 사업에서 해양조사, PLGR 작업을 위해서 선박의 정보를 관리하기 위한 모니터링 시스템에 대해서 논한다. 이를 위해서 GPS, gyrocompass, tension meter 데이터 취득을 위한 시리얼 멀티포트 통신 모듈을 구성, 수신 데이터의 관리 및 운용을 위한 실시간 처리, 그래프 및 인쇄 출력 모듈을 설계 및 구현하였다.

• 한국항만경제학회지
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• 제25권3호
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• pp.361-384
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• 2009

본 논문은 광양항을 사례로 수송수요와 항만환경의 실태를 분석하고, 환경친화적인 항만관리정책의 방향을 항만운영과 계획 측면에서 강구하는 데 있다. 중요한 논문내용은 녹색성장과 환경친화적 항만의 개요, 광양항 수송 환경실태의 분석, 환경친화적 광양항 관리정책의 방향 등으로 구성되어 있다. 연구결과, 광양항을 환경친화적인 녹색항만으로 육성하기 위해서는 항만운영 계획 측면에서 합리적인 항만관리정책의 방향이 정립되어야 한다. 항만운영의 측면에서 환경 친화적인 정책방향은 환경친화적 항만물류수송체계의 전환, 항만컨테이너 운영부두의 에너지 절감, 환경친화적 항만운영기술의 적용 등을 들 수 있다. 항만계획의 입장에서 환경친화적 항만정책의 방향으로는 환경친화적 항만친수공간의 조성, 해양폐기물의 환경친화적 처리와 항만환경계획의 수립 시행 등이 포함된다. 본 연구는 항만과 환경의 상호간 영향에 대한 계량분석, 환경친화적 항만정책효과의 분석 등에 한계점을 가지고있다. 향후 연구에서는 계획과 운영 측면에서 환경친화적 항만정책의 영향평가방법에 대한 연구가 필요하다.

• Nuclear Engineering and Technology
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• 제44권3호
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• pp.331-342
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• 2012

Since the opening of the Shin-Kori #1,2 in 2005, fly ash mixed concrete has been used for NPP concrete structures under construction in Korea with the aim of preventing aging and improving durability. In this paper, the quality suitability of fly ash manufactured in Korea is assessed and the basic physical properties of fly ash mixed concrete and its durability against primary causes of aging are verified through experimental methods. Because of the internal structure filling effect from the pozzolanic reaction of fly ash and the resulting improvements in mechanical performance in such areas as strength and salt damage resistance, the durability of fly ash mixed concrete is shown to be superior. It is judged that this result can be applied in measures not only for improving the safety of NPP structures in operation in Korea but also for implementing effective structure life management should extending the life of structures be needed in the future.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.22-26
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• 2011

The urban transit vehicles has very complicated structures composed electric and mechanical parts and systems. Its system is important to insure operating stability pursuant to massive transfer. Also, its system takes a lot of maintenance cost than constructing cost due to its system which has longtime life cycle. Generally it is know that maintenance cost affect a lot on total cost because its life cycle cost takes a part more than 60~70%. For these reason, it is really important to reduce its maintenance cost through efficiently operation and maintenance management system construction.

• 한국신뢰성학회지:신뢰성응용연구
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• 제15권4호
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• pp.276-281
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• 2015

Purpose : The purpose of this study is to propose that domestic rail must the work to be done in the RCM system and railway operators are to present a direction to establish the efficient and systematic system based on this. Methods : In recent years, domestic railway accidents has decreased year rapidly every year. In particular, suicidal ideation was greater than 50% of the accidents is showing a larger decrease in the influence of the screen-door construction. However, the train delay has been maintained without major changes since 2010. The most important cause of the delay operation is a vehicle breakdown. This fact demonstrates that effective maintenance of the most important activities in the railway accident prevention activities. So we have to build a RCM system in which the characteristics of the domestic railway accident. Conclusion : We proposed what is necessary functionality and the function requires a railway operators in RCM railway systeml.

• 대한조선학회논문집
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• 제44권1호
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• pp.48-54
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• 2007

Higher productivity and less cost during the manufacturing process of ships are required to maintain international competitiveness of modern shipbuilding industries. The integrated hull/ outfitting/ painting scheduling(IHOP) process is a final point, where logistics are finally being integrated and upcoming schedules are made. Therefore, more profits are expected from IHOP by effective management. In this thesis, IHOP is proposed in order to solve how to choose block erection date with IHOP scheduling logic. The result of IHOP scheduling is highly advised to utilize fabrication, outfitting shops. A standardized operation and load of resource will eventually be applied in long-term time span point of view for this will make it easy to enable capacity planning and workforce planning. It is also expected to eliminate inefficiency in overtime work and efficiently utilize manpower in short-term.

• 산업공학
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• 제15권4호
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• pp.356-363
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• 2002

Virtual Manufacturing is a technology to facilitate effective product development and agile production by computer models representing the physical and logical schema and the behavior of real manufacturing systems including manufacturing resources, environments and products. For the successful application of this technology, a virtual factory as a well-designed and integrated environment is essential. In this research, we constructed a sophisticated virtual factory model of an automotive company's paint shop, and performed precise simulations of unit cells, lines and whole plant operations for collision check and off-line programming. It is expected that this virtual paint shop is useful for achieving time and cost savings in many manufacturing preparation and planning activities of new car development processes.

• 대한산업공학회지
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• 제30권3호
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• pp.224-240
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• 2004

Supply chain management(SCM) has been recognized as a major strategy in today's market place. A growing number of researchers have begun to realize the strategic importance of model construction, planning, controlling and operation for SCM. Also various researches of supply chain model building are going on. In this paper, we synthesis key elements of supply chain model such as performance factors, decision variables and constraints. We have reviewed past and present supply chain models and then analyzed those in view of environment factors, operations, solution approaches.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2007년도 춘계학술대회 논문집
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• pp.393-396
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• 2007

Recently one level higher intelligent switching board than established one by the application of intelligent building and digital system are being constructed. Therefore facility's high efficiency, high degree satisfaction, miniaturaization, standardization through application of communication technology and monitoring and controlling by computer system utilized by web-basis power control system and electric IT are practiced. Especially network must be constructed through unified IBS server that monitors every educational institute's switching boards in real time control system. And I intend to create methods to save energy and raise electricity quality by power demand prediction and remote-controled management and operation. In this thesis I intend to suggest measures of forming unified system through researching educational institute's ways of constructing switching board and status analysis and overcoming technical difficulties in user's side and saving and maintenance expense.

• 시스템엔지니어링학술지
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• 제9권2호
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• pp.91-97
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• 2013

Recently, the Korean Railroad have been operating separately by Korea Rail Network and the Korail since 2005. In addition, because of the lack of government's social overhead capital, New railway projects have been built and operated by private investors which don't have railway operating experience. Therefore, systems engineering management is needed from the initial planning stage to the construction and the opening. In this paper, structural features were considered according to the separation of Daegok-Sosa-Wonsi Private Finance Initiative (Daegok-Sosa, Sosa-wonsi) and the operating agency's unification(Daegok - Sosa business operations). And based on the domestic system engineering applications, System-Engineering Implementation was studied.