• 한국지형공간정보학회:학술대회논문집
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• 한국지형공간정보학회 2005년도 아시아 태평양 국제 GSIS 학술발표회
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• pp.61-72
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• 2005

The landslide risk assessment process consists of hazard risk assessment and vulnerability analysis. landslide hazard risk is location dependent. Therefore, maps and spatial technologies such as GIS are very important components of the risk assessment process. This paper discusses the advantages of using GIS technology in the risk assessment process and illustrates the benefits through case studies of live projects undertaken. The goal of this study is to generate a map of landslide vulnerability map by analysis of static natural factors with GIS. A simple and efficient algorithm is proposed to generate a landslide potentialities map from DEM and existing maps. The categories of controlling factors for landslides, aspect of slope, soil, vegetation are defined. The weight values for landslide potentialities are calculated from AHP method. Slope and slope-direction are extracted from DEM, and soil informations are extracted from digital soil map. Also, vegetation informations are extracted from digital vegetation map. Finally, as overlaying, landslide potentialities map is made out, and it is verified with landslide place.

• Steel and Composite Structures
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• 제47권4호
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• pp.451-454
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• 2023

Landslides are one of the natural disasters that cause a lot of financial and human losses every year It will be all over the world. China, especially. The Mainland China can be divided into 12 zones, including 4 high susceptibility zones, 7 medium susceptibility zones and 1 low susceptibility zone, according to landslide proneness. Climate and physiography are always at risk of landslides. The purpose of this research is to prepare a landslide hazard map using the Hierarchical Analysis Process method. In the GIS environment, it is in a part of China watershed. In order to prepare a landslide hazard map, first with Field studies, a distribution map of landslides in the area and then a map of factors affecting landslides were prepared. In the next stage, the factors are prioritized using expert opinion and hierarchical analysis process and nine factors including height, slope, slope direction, geological units, land use, distance from Waterway, distance from the road, distance from the fault and rainfall map were selected as effective factors. Then Landslide risk zoning in the region was done using the hierarchical analysis process model. The results showed that the three factors of geological units, distance from the road and slope are the most important have had an effect on the occurrence of landslides in the region, while the two factors of fault and rainfall have the least effect The landslide occurred in the region.

• 한국산학기술학회논문지
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• 제16권1호
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• pp.438-444
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• 2015

본 연구는 발효유류의 HACCP(Hazard Analysis Critical Control Point)시스템 적용을 위한 목적으로 하였다. 발효유류의 주원료, 작업장 시설과 작업자 등에 대하여, 2013년 11월 5일~2014년 4월 13일까지 충청남도 천안시 서북구 소재에 있는 YD 업체에서 제공받았다. 제조공정도는 일반적인 발효유류 제조업체의 제조공정을 참고로 작성하였다. 제조공정도는 원료(원유, 액상과당, 올리고당, 유산균), 부재료, 포장재의 입고, 보관, 투입, 예열, 혼합, 균질, 살균, 예냉, 배양, 냉각, 여과, 내포장, 외포장, 보관 및 출하공정으로 Fig. 1과 같이 작성하였다. 원료의 미생물학적위해요소 분석결과는 Table 1과 같다. 본 연구결과 발효유의 원재료와 살균($90^{\circ}C{\pm}5^{\circ}C$에서 $35{\pm}3$분) 후에는 위해미생물검사 결과는 안전하나 제조환경과 작업자의 미생물검사 결과 체계적인 세척 및 소독을 실시하여 미생물학적 위해를 감소시키고, 작업자 위생교육 등을 통하여 개인위생개념 향상과 작업장 내 공기중의 미생물 관리가 함께 이루어져야 할 것으로 여겨진다.

• 한국농공학회논문집
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• 제49권3호
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• pp.63-68
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• 2007

The LRA(Logistic Regression Analysis) conducts a quantitative analysis by collecting a lot of samples and the AHP(Analytic Hierarchy Program) makes use of expert decision influenced by subjective judgment to a certain degree. This study is to suggest a combination method in mapping landslide hazard by giving equal weight for the result of LRA and AHP. Topographic factors(slope, aspect, elevation), soil dram, soil depth and land use were adopted to classify landslide hazard areas. The three methods(LRA, AHP, the combined approach) was applied to a $520km^2$ region located in the middle of South Korea which have occurred 39 landslides during 1999 and 2003. The suggested method showed 58.9% matching rate for the real landslide sites comparing with the classified areas of high-risk landslide While LRA and AHP Showed 46.1% and 48.7% matching rates respectively. Further studies are recommended to find the optimal combining weight of LRA and AHP with more landslide data.

• 한국가스학회지
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• 제22권2호
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• pp.1-20
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• 2018

Despite many measures, still from time to time catastrophic events occur, even after reviewing potential scenarios with HAZID tools. Therefore, it is evident that in order to prevent such events, answering the question: "What can go wrong?" requires more enhanced HAZID tools. Recently, new system based approaches have been proposed, such as STPA (system-theoretic process analysis) and Blended Hazid, but for the time being for several reasons their availability for general use is very limited. However, by making use of available advanced software and technology, traditional HAZID tools can still be improved in degree of completeness of identifying possible hazards and in work time efficiency. The new HAZID methodology proposed here, the Data-based semi-Automatic HAZard IDentification (DAHAZID), seeks to identify possible scenarios with a semi-automated system approach. Based on the two traditional HAZID tools, Hazard Operability (HAZOP) Study and Failure Modes, Effects, and Criticality Analysis (FMECA), the new method will minimize the limitations of each method. This will occur by means of a thorough systematic preparation before the tools are applied. Rather than depending on reading drawings to obtain connectivity information of process system equipment elements, this research is generating and presenting in prepopulated work sheets linked components together with all required information and space to note HAZID results. Next, this method can be integrated with proper guidelines regarding process safer design and hazard analysis. To examine its usefulness, the method will be applied to a case study.

• 자원환경지질
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• 제51권2호
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• pp.203-211
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• 2018

국내 원전부지 지진재해도 평가 경험을 바탕으로 향후 지진재해도 평가 시 보다 정량적인 평가를 위하여 고려하여야 할 사항에 대하여 점검하였다. 지진재해도 평가 방법을 양분하는 것으로 알려진 결정론적 방법과 확률론적 방법에 대하여 간단히 소개하였으며, 대부분의 후속 논의는 확률론적 지진재해도 평가에 집중하였다. 이 평가를 국내 원전부지에 적용한 과거 사례를 토대로 제기된 불확실성의 원인을 추적하였다. 확률론적 지진재해도 평가의 고려사항으로 전문가의 역할, 대표지진목록 작성, 지진원 설정, 지진-지반운동 관계식 개발 및 지진재해도 평가 절차에 대하여 토의하였다. 각 주제별로 불확실성을 증가시키는 요인을 분석하고 국내 환경에 적합한 해결 방안을 토의하였다.

• 산업경영시스템학회지
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• 제22권53호
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• pp.79-88
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• 1999

This paper presents an integral model for product safety and product liability resulting from a defective product. The essence of the paper is the process of supply of manufacturing products which satisfy the product liability and the product safety in terms of consumers expectation levels. The main criteria of the product safety is the hazard level which involves in the severity and frequency. The proposed model shows the process to supply the manufactured products under the conditions that they are suitable in comparison of hazard level and safety level established by each company. If the product do not meet the safety level, this paper proposes that four different types of PL and PS countermeasures for the risk types are forward, respectively.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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• pp.547-550
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• 2006

This study is to suggest a methodology to produce landslide hazard map by combining LRA (Logistic Regression Analysis) and AHP (Analytic Hierarchy Program) Approach. Topographic factors (slope, aspect, elevation), soil drain, soil depth and land use were adopted to classify landslide hazard areas. The method was applied to a 520 $km^2$ region located in the middle of South Korea which have occurred 39 landslides during 1999 and 2003. The suggested method showed 58.9 % matching rate for the real landslide sites comparing with the classified areas of high-risk landslide while LRA and AHP showed 46.1 % and 48.7 % matching rates respectively.

• 한국안전학회지
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• 제29권5호
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• pp.166-171
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• 2014

This study is conducted to compare three methods of hazard analyses and to propose the control for the accidents arising under construction of heat accumulator of group energy projects(co-generation plants). The analysis of fatal accidents and the Analytic Hierarchical Process(AHP) using by the questionnaire survey for the workers engaged in the construction of heat accumulator and the quantitative questionnaire survey of expert group has been carried out. In order to analyze the fatal accidents, the 115 cases of accidents from 2001 to 2012 published by Korean Occupational Safety and Health Agency(KOSHA) and workers suffered from industrial accidents are collected and analyzed. The AHP is applied and analyzed for 66 persons of the construction site managers, safety engineers and construction engineers and the questionnaire survey of expert group is carried out and analyzed for the 51 persons of contractors and construction inspectors. The analyses of the types of accidents and the jobs of the suffered workers and the hazardous construction processes which are occurred accidents frequently are shown. The results of the analysis of fatal accidents and the AHP as well as the questionnaire of expert group are shown similar results.

• 한국산학기술학회논문지
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• 제17권4호
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• pp.382-391
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• 2016

철도와 같은 안전중시 시스템에 대해 체계적인 안전관리의 필요성이 점차 커지고 있어 IEC 61508, 62278, ISO 26262 등의 안전과 관련된 표준들이 제정되었고, 관련연구가 수행되고 있다. 그중 안전 프로세스의 중요한 활동인 위험원 분석에 대하여 다양한 연구가 수행되어 왔으나, 시스템설계 프로세스와의 구체적인 연계성이 부족하였다. 또한 기존의 위험원 분석방법은 시스템 설계가 상당 수준 진행된 하드웨어 및 소프트웨어 구성품 정보에 의존하기 때문에, 설계 변경에 많은 비용과 일정이 소요된다. 이러한 문제들을 해결하기 위해서 본 논문에서는 시스템 설계초기인 개념설계 단계에서 수행한 기능분석 결과를 안전 프로세스에서 직접적으로 활용하여 위험원을 분석하고 이를 바탕으로 위험을 줄이기 위해 필요한 안전요구사항을 생성하는 방법에 대하여 연구를 수행하였다. 설계 초기에 위험원 분석 및 안전요구사항의 도출을 수행함으로써, 향후 요구사항 변경 등 여러 요인으로 시스템 설계 및 안전 설계의 변경 시에 이를 반영하는데 있어서 시간 및 비용 관점에서 상대적으로 효율적인 접근 방법이 된다. 한편, 사례연구로서 본 논문에서 제시한 방법을 경전철 역사의 안전성을 확보하기 위한 요구사항의 도출에 적용하는 연구를 수행하였다.