• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 추계학술발표회 논문집
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• pp.423-428
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• 2004

Flooding is one of the main causes of loss of lives and properties among various natural disasters in Korea. Flood risk maps are currently being produced in Korea but the progress is slow considering the necessity to map at nationwide scale. In this study, GIS-based multi-criteria decision making process which is normally used for resource management and site analysis was applied to locate flood vulnerable areas. Past records of flooding maps were analysed to extract topographic characteristics of flooded areas. The extracted characteristics were then set as criteria for flooding analysis using the Fuzzy and Analytic Hierarchy Process(AHP) methodology. Results from this study showed that an improved phased action plan was possible, because the flood vulnerable areas are shown in varying degrees of uncertainty unlike the conventional Boolean type GIS layer superimposition analysis.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 2001년도 춘계 학술대회 논문집
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• pp.8-13
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• 2001

다 단계 의사결정지원시스템, AHP(Analytic Hierarchy Process)는 다수 대안에 대하여 다 면적인 평가기준과 다수 주체에 의한 의사결정을 위해 설계된 의사결정지원방법의 하나이다. AHP 시스템은 먼저 주어진 시스템을 구성하고있는 요소를 세분하고 그 분할된 요소를 계층적으로 구성하며 다음으로 계층간 각 레벨에 있는 요소의 상대적 중요도에 대한 판단을 종합하는 과정을 거친다. 본 연구에서는 이러한 AHP방법을 실용화하기 위하여 사용자가 Web기반에서 활용하기 쉽도록 GUI-tyre 프로그램을 개발하고 이를 검증하였으며 예제를 들어 보였다. 본 연구에서 개발한 소프트웨어는 크게 다음과 같이 3 가지 구조로 구성하였다. 단계 1 : 대안 평가의 아이디어 창출 단계(Brainstorming), 단계 2 : 다 단계, 다 기준 의사결정지원시스템(AHP), 단계 3 우선 순위 종합모델(MRM)

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2004년도 추계학술발표논문집(상)
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• pp.85-88
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• 2004

최근 XML데이터베이스는 웹의 발전과 더불어 광범위한 인터넷의 자원 공유에 크게 기여하고 있으며 이러한 자원 공유를 위해서는 XML데이타베이스에 대한 구조적 정의로 타입 상속 구조를 가지는 XML Schema를 사용한다. 그러므로 XML Schema를 따르는 XML데이타베이스에 대한 효율적인 색인기법에 대한 연구가 필요하다. 따라서 본 논문에서는 기존의 다차원 색인구조와 사전에 분석한 사용자 질의 패턴에 대한 정보를 이용하여 주어진 질의들에 의해서 액세스되는 색인 페이지의 평균 개수가 최소가 되게 하는 최적의 이차원 타입 색인 구조를 구성 할 수 있는 2D-THI를 제안한다. 제안한 2D-THI의 성능을 비교 평가하기 위해서 기존의 객체지향 데이터베이스에서 클래스 상속에 대한 색인구조로 널리 사용되고 있는 CH-index와 CG-tree를 XML데이타베이스에 적용하여 이들과 2D-THI를 비용모델을 통해서 비교 분석한다. 그 결과로 본 논문에서 제안한 2D-THI로서 다양한 질의 패턴에 대해서 최적의 색인구조를 구성할 수 있음을 보인다.

• 방사성폐기물학회지
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• 제21권2호
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• pp.247-253
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• 2023

According to NSSC Notice No. 2021-10, safety analysis needs to be introduced in the decommissioning plan. Public and occupational dose analyses should be conducted, specifically for unexpected radiological accidents. Herein, based on the risk matrix and analytic hierarchy process, the method of selecting accident scenarios during the decommissioning of nuclear power plants has been proposed. During decommissioning, the generated spent resin exhibits relatively higher activity than other generated wastes. When accidents occur, the release fraction varies depending on the conditioning method of radioactive waste and type of radioactive nuclides or accidents. Occupational dose analyses for 2 (fire and drop) among 11 accident scenarios have been performed. The radiation doses of the additional exposures caused by the fire and drop accidents are 1.67 and 4.77 mSv, respectively.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.354-360
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• 2009

The demands for large-scale construction projects such as Mega-projects are largely increasing due to the rapid growth of increasing populations as well as the need to replace existing buildings and infrastructure. Increasing costs of materials, supplies, and labors require the first cost estimates at the preliminary planning stage to be as accurate as possible. This paper presents the results obtained from the survey on evaluating nine critical success factors that influence the accurate first cost estimates for large-scale projects from practical experiences. It then examines the current cost structures of construction companies for large-scale projects, followed by the causes for cost and schedule overrun. Twenty completed surveys were collected and the Analytic Hierarchy Process was applied to analyze the data. The results indicate that technology issues, the contract type, and social and environmental impacts are the significant leading factors for accurate first cost estimates of large-scale construction projects.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.293-294
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• 2021

For the successful introduction of the construction automation system, it is necessary to define the consideration factors and target tasks for the necessity of automating the conventional methods. In this study, the factors for automation were derived through brainstorming and questionnaires, and calculated the relative importance through the pairwise comparison using the AHP analysis method. In addition, the detailed type of concrete work was classified into 32 detailed works, and the automation score for each work was calculated by investigating the factors considering the necessity of automation. As a result of the automation score analysis, it was concluded that the need for automation of concrete placing work was the highest. Based on this study, we will consider the strategy of a concrete construction automation system.

• 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.235-241
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• 2017

SWOT-AHP method was utilized in the research for the Korean construction companies to advance into the US PPP market. The research was that the SO Strategy ": Advancing through strategic selection of both construction sector type and region", ST Strategy "Advancing based on the acquired competitive business sector", WO Strategy "Developing collaboration model between public financial organization and construction company", and WT Strategy "Establihing a partnership or M&A with local companies".

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.2568-2574
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• 2005

Control architecture of the action based robot engineering can be divided into two types of deliberate type - and reactive type- controller. Typical deliberate type, slow in reaction speed, is well suited for the realization of the higher intelligence with its capability to forecast on the basis of environmental model according to time flow, while reactive type is suitable for the lower intelligence as it fits to the realization of speedy reactive action by inputting the sensor without a complete environmental model. Looking at the environments in the application areas in which robots are actually used, we can see that they have been mostly covered by the uncertain and unknown dynamic changes depending on time and place, the previously known knowledge being existed though. It may cause, therefore, any deterioration of the robot performance as well as further happen such cases as the robots can not carry out their desired performances, when any one of these two types is solely engaged. Accordingly this paper aims at suggesting Goal-oriented Geometric Model(GGM) Based Intelligent System Architecture which leads the actions of the robots to perform their jobs under variously changing environment and applying the suggested system structure to the navigation issues of the robots. When the robots do perform navigation in human life changing in a various manner with time, they can appropriately respond to the changing environment by doing the action with the recognition of the state. Extending this concept to cover the highest hierarchy without sticking only to the actions of the robots can lead us to apply to the algorithm to perform various small jobs required for the carrying-out of a large main job.

• 대한기계학회논문집A
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• 제38권8호
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• pp.911-916
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• 2014

레저보트산업은 미래형 고부가가치 산업으로 최근 국내에서는 한국형 고속레저낚시보트에 대한 연구가 수행되었다. 본 논문에서는 고속레저낚시보트의 대량생산을 위한 기초연구로서 제품구성모델 기반의 건조공수 추정 연구를 수행하였다. 이를 위해 레저보트의 건조공정을 분석하고 범용 작업분류체계를 적용하였으며, 업체 설문조사를 통해 계층분석법 기반의 레저보트 건조공수 비례계수를 도출하였다. 또한 실적선의 공수를 기반으로 비례계수를 이용한 개발선 후보들의 정량적인 공수추정을 수행하였으며, 그 결과 실적선 공수 대비 17% 감소된 쌍동형 개발선을 최종 선정할 수 있었다. 이는 개발된 레저보트의 설계가 실제 건조단계에서 가격경쟁력을 갖출 수 있는 양산가능수준의 제품임을 의미한다.

• 한국조경학회지
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• 제26권3호
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• pp.297-311
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• 1998

Landscaping on artificial ground is currently served as a means to imposing a greenery benefit on high-density and high-rise apartment sites. It functions as a sub-hierarchy in apartment planning such as ornamental element from the past. Major parking space tends to be allocated on the basement area in response to the required parking regulation. Therefore, competitive relatioinship between the parking and greenery space I limited outdoor of apartments leads to the development planning strategy and technology of artificial ground. This study aims at evaluating landscape planning on artificial ground of apartment complex through several approaches such as site survey, plan drawing analysis, and interview with related field experts. 15 survey apartment sites including Bundang Model, Shindaebang-dong, Pyoungchon Hyundai Apartments have been selected for conducting the research. Main results of this study are summarized below : First, scattering allocation of artificial ground between apartment building units is a dominant plan layout type among the survey sites. Even though unifying allocation type has an advantage to maximize underground parking space, it has a difficulty in maintaining proper soil ground base for nurturing plants. Therefore, underground parking space should be planned by unifying allocation type placed separately from apartment units. This plan type can provide a balanced planting between soil and artificial ground on surface level. Second, It is strongly recommended to integrate the whole planting base which involves architectural structure, drainage, and water proofing above the planting design. When considering that process as a professional subject dealing with natural material such as trees and shrubs, those tasks should be directed by landscape architectural divison and landscape architect. And planting area for artificial ground has to be specified in initial phase of architectural design. This step provides an opportunity to make a proper decision on structural load, drainage, and water proof design as an integrated part of the management.