• 국제학술발표논문집
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• The 7th International Conference on Construction Engineering and Project Management Summit Forum on Sustainable Construction and Management
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• pp.133-137
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• 2017

Nuclear power plants in Korea are usually built based on a duplicated model; so the project cost data of the preceding unit can be used as reference when estimating the project cost for the succeeding unit. However, since the contracting method is oriented towards the price, empirical factors such as making top-down estimations using the reverse calculation method based on the completion cost of the preceding unit is dominant. In order to develop a project cost database to resolve such problems, the detailed cost boundary of the project cost data must be categorized by project and by system. This study proposes a method to connect the code of account with the base quantities and the IAEA account, and proposes a database structure for the development of a project cost estimation system. The estimation system developed in the future is expected to utilize the proposed project cost data structure.

• 복식
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• 제55권8호
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• pp.144-153
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• 2005

The purpose of this study is to make a Web Color Data Base for practical design system for domestic fashion industry. The market segmentation was based on the results of the previous studies and the characteristics of fashion consumers. Finally, the 14,121 color samples are collected from the survey of 55 manufacturers of domestic fashion industry and 116 fashion brands of major department stores. These color samples are analyzed by the Munsell's H V/C and CIE L*a*b* value. The representative colors are selected concerning the density in CIE L*a*b* color space and the distance between the color samples. As a result, We suggested 2213 representative colors. Also, this color data was constructed on Web site. The data were sorted by the market, season and color code. In addition, the representative color sample book was made for the prototype of .

• International Journal of Safety
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• 제4권2호
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• pp.12-17
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• 2005

This paper aims at the development of an knowledge base for an electrical fire cause diagnosis system using the entity relation database. The relation database which provides a very simple but powerful way of representing data is widely used. The system focused on database construction and cause diagnosis can diagnose the causes of electrical fires easily and efficiently. In order to store and access to the information concerned with electrical fires, the key index items which identify electrical fires uniquely are derived out. The knowledge base consists of a case base which contains information from the past fires and a rule base with rules from expertise. To implement the knowledge base, Access 2000, one of DB development tools under windows environment and Visual Basic 6.0 are used as a DB building tool. For the reasoning technique, a mixed reasoning approach of a case based inference and a rule based inference has been adopted. Knowledge-based reasoning could present the cause of a newly occurred fire to be diagnosed by searching the knowledge base for reasonable matching. The knowledge-based database has not only searching functions with multiple attributes by using the collected various information(such as fire evidence, structure, and weather of a fire scene), but also more improved diagnosis functions which can be easily wed for the electrical fire cause diagnosis system.

• Industrial Engineering and Management Systems
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• 제14권1호
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• pp.73-87
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• 2015

The development of a practical technology intelligence system requires a knowledge base that structures the core information and its relationship distilled from large volumes of technical data. Previous studies have mainly focused on the methodological approaches for technology opportunities, while little attention has been paid to constructing a practical knowledge base. Therefore, this study proposes a procedure to construct a function-based knowledge base for technology intelligence. We define the product-function-technology relationship and subsequently present the detailed steps for the knowledge base construction. The knowledge base, which is constructed analyzing 1110582 patents between 2009 and 2013 from the United States Patent and Trademark Office database, contains the functional knowledge of products and technologies and the relationship between products and technologies. This study is the first attempt to develop a large-scale knowledge base using the concept of function and has the ability to serve as a basis not only for furthering technology opportunity analysis methods but also for developing practical technology intelligence systems.

• 대한공간정보학회지
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• 제14권2호
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• pp.69-75
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• 2006

본 연구의 목적은 공간데이터 구측의 공종분류체계를 표준화하는데 있다. 공종분류체계는 지리정보 구축시 발생되는 제반정보를 체계적으로 분류하기 위한 기본틀이다. 국토지리정보원에서 수행되는 기본측량을 대상으로 하였으며, 측량 업체의 기본측량 실무공정과 국토지리정보원의 규정을 조사, 분석하였다. 조사, 분석한 내용을 기반으로 공간데이터 구축사업의 종류, 사업별 공종 및 공종별 성과물 체계를 표준화하였다. 본 연구에서 제시된 지리정보 공종분류체계를 국가 표준에 반영하고 공간데이터베이스 구축방법론으로 발전시킨다면, 지리정보 제작 사업을 체계적으로 관리하고 선진화할 수 있을 것으로 기대된다.

• 한국강구조학회 논문집
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• 제13권1호
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• pp.71-79
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• 2001

본 연구는 콘크리트 충전강관을 고층 건축구조물의 기둥부재로의 이용을 위한 연구의 일환으로 필자의 실험결과와 그동안 국내에서 발표된 콘크리트충전 강관 기둥에 관한 연구논문(1991.1~2000.6)의 실험결과 값을 데이터 베이스를 통해 콘크리트 충전으로 인한 내력 상승효과와 세장비에 따른 내력 등을 파악하여 다음과 같은 결론을 얻었다. 콘크리트 충전 강관 단주의 콘크리트 충전으로 인한 내력 상승효과는 단면형태에 따라 달리 나타나며, 누가강도에 비해 충전각형 강관은 1.102배 충전원형강관은 1.279배의 내력상승효과를 나타냈다. 압축력과 휨을 받는 콘크리트 충전강관의 폭-두께비는 국내의 비충전 강관의 폭-두께비에 비해 충전각형관은 1.3배 충전원형강관은 1.6배 이상 완화할 수 있음을 알 수있었다. 충전 효과를 고려한 중심축 하중을 받는 콘크리트 충전 강관 기둥의 내력식을 제안하였다. 실험데이트를 대표적인 복수강도 곡선인 SSRC 곡선 및 ECCS 곡선과 비교하였다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.1235-1240
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• 2011

Urban transit system consist of complex system such as vehicle, signal, train control equipment, railway facilities, electricity facilities, station facilities and information & communications facilities. So a study on construction of management system for complex system. using system-engineering tool, Urban transit standardization of steps 2 perform architecture for urban transit standardization, requirement management and data-base construction. A study expect that provide more efficient and methodical information system to all user for using standardization.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1999년도 봄 학술발표회 논문집(I)
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• pp.813-818
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• 1999

The construction of large scale civil and building structures which form the base of social economy has been grown greatly. As the increasing of aged and deteriorated structures, it is necessary to evaluate the safety of those structures. The deterioration, safety evaluation, repair and rehabilitation are important problems in the construction area that every country faces. This paper presents the general information on how to conduct a data analysis of long-term monitoring system and evaluate the characteristics of surveying methods.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2009년도 춘계학술대회 논문집
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• pp.625-626
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• 2009

• 디지털콘텐츠학회 논문지
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• 제16권4호
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• pp.555-564
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• 2015

최근 건설 프로젝트가 대형화, 복잡화, 전문화되면서 다양한 참여자들 사이에서 발생하는 방대한 양의 정보 활용이 중요해 지고 있다. 발생되는 다양한 정보 중 일정정보는 건설프로젝트의 중심적인 정보이다. 건설현장 관련 참여자간 일정정보교환 미흡은 공기지연, 품질하자와 같은 건설생산성 저해 요인을 유발한다. 현재, 건설 산업에서는 건축물의 전 생애 주기 동안 필요한 데이터를 생산하고 관리하는 BIM(Building Information Modeling)에 대한 관심이 높아지고 있다. 본 연구는 BIM을 기반으로 건설공사의 일정정보를 체계적으로 관리 할 수 있는 일정관리 정보 체계를 구축하는 것이다. 이를 위해 BIM적용 일정관리 업무 프로세스를 구축하였으며, 일정정보를 구축하기 위한 작업분류체계를 도출 하였다. 또한 일정정보 구축에 필요한 속성 중 BIM모델에서 추출 할 수 있는 정보를 도출하고, 일정관리에 필요한 속성정보와 연계하여 일정을 생성 하고 공사 진행 시점별 일정관리를 위한 필요 정보를 제시한다.