• 시스템엔지니어링학술지
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• 제17권1호
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• pp.21-34
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• 2021

The use of Field-Programmable Gate Arrays (FPGAs) in the development of safety-related Human-Machine Interface (HMI) systems has gained much momentum in nuclear applications. Recently, one of the application areas for the Advanced Power Reactor 1400 (APR1400) is in the development of the advanced Component Interface Module (CIM) of the Engineered Safety Features Actuation System (ESFAS). Using systems engineering approach, we have developed a new FPGA-based advanced CIM software. The first step of our software development process involves the Preliminary Hazard Analysis (PHA) based on the previous CIM design. In this paper, we describe the qualitative approach used in performing the preliminary hazard analysis. The paper presents the methodology for applying a modified Hazard and Operability (HAZOP) procedure for the conduct of PHA which resulted in a qualitative risk-ranking scheme that informed the decisions for the safety criteria in the requirements specification phase. The qualitative approach provided the justification for design changes during the advanced CIM software development process.

• 대한토목학회논문집
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• 제12권1호
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• pp.29-42
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• 1992

본 논문에서는 구조물 설계시에 필요한 설계지진값을 도출하기 위하여 지진위험도 해석기법에 관한 연구를 수행하였다. 이를 위하여, 우선적으로 지진위험도 해석방법을 유도하여 정립하고, 우리나라의 지진자료를 이용하여 지진발생을 모델하였다. 본 연구의 방법은 우리나라의 임의 특정 부지에서의 지진위험도를 산출할 수 있도록 유도되었으며, 각 방법의 특징을 비교 분석하였다. 본 논문에서는 원자력발전소와 같은 주요 구조물 가능 부지에 대한 지진위험도를 도출하였으며, 이러한 연구결과는 앞으로 주요 구조물 설계에 아주 중요한 토대를 제공할 것으로 사료된다.

• Spatial Information Research
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• 제17권1호
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• pp.25-37
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• 2009

최근 인명과 재산을 보호할 수 있는 중요한 분야인 안전 운전 서비스를 위해 GIS 및 텔레매틱스 기술에 USN을 활용하는 연구가 증가하고 있다. 본 논문에서는 이러한 안전 운전 서비스를 위한 연구의 하나로, USN을 활용하여 굴곡 도로에서 발생할 수 있는 위험을 분석하고 사고를 예방하기 위한 기술을 제안한다. 위험 분석 기술은 크게 모델링과 알고리즘으로 구성된다. 모델링으로는 굴곡 도로, 도로 방향, 센서, 차량, 위험에 대한 모델을 제안하고, 알고리즘으로는 위험을 분석하고 경고할 수 있는 다중 레벨 위험 분석 알고리즘을 제안한다. 그리고, 제안한 모델링과 알고리즘에 대한 시뮬레이션 응용 프로그램을 구현한다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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• pp.664-667
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• 2004

This paper is aimed at analyzing the soil erosion hazard zone in farm land. RUSLE was used for an analysis of soil erosion amount, and for the spatial data of basin, soil erosion amount was calculated by extracting the respect topography space related factors of RUSLE using DEM, Landuse, Soil map as base map. As a result of analysis on the calculated soil erosion amount according to land use type, it was analyzed that the most soil erosion occurred in orchard area, i.e., 40.08ton/ha/yr at average. It was classified into 5 classes depending on the calculated soil erosion amount. of which Class V was decided as soil erosion hazard zone, and for this area, 72.5ha or so, $2.4\%$ of the entire farm land was assessed as erosion hazard zone.

• 대한인간공학회지
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• 제24권4호
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• pp.79-83
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• 2005

Efforts to identify jobs or tasks having known risk factors for work-related musculoskeletal disorder can provide the groundwork for changes aimed at risk reduction. An effective identification method is the ergonomic job hazard analysis which breaks a job into its various elements or actions, describes them, measures and quantifies the ergonomics risk factors. Some analytical methods including OWAS, RULA, REBA, and NLE have been used as tools in quantifying the risk factors. But these traditional methods using worksheet or paper are difficult to explain to participants for performing the job hazard analysis in the field, and take a long time. We develop some software tools to implement the analytical methods using EXCEL programs or computer program. These tools developed in this study are faster and easier to perform the ergonomic job analysis than the traditional methods using worksheet.

• 한국철도학회논문집
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• 제9권3호
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• pp.264-270
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• 2006

In this paper we present a safety plan to be applied to the development of the TCS(Train Control System). The safety plan that can be applied to the life cycle of a system, from the conceptual design to the dismantlement, shows the whole process of the paper work in detail through the establishment of a goal, analysis and assessment, the verification. In this paper we study about the making a plan, the preliminary hazard analysis, the hazard identification and analysis to guarantee the safety of the TCS. The process far the verification of the system safety is divided into several steps based on the target system and the approaching method. The guarantee of the system safety and the improvement of the system reliability is fellowed by the recommendation of the international standards.

• 한국재난정보학회 논문집
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• 제3권1호
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• pp.69-86
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• 2007

The fire department has one of the most important role as public resources of response to disasters in the aspect of supply and the adequate distribution of resources of response is essential, but the distribution of the response capability to disaster of fire department does not reflect the regional hazard vulnerability and hazard risks. Researchers performed database process with simple mapping based on the regional fire disaster response capability and the regional hazard vulnerability and hazard risks. The cities and towns are divided to four types each, total eight types and relative threat ratios are extracted from every type. The fire disaster response capability was extracted from number of firemen and fire vehicles in defined region. The distribution of the fire disaster response capability was inadequate and not matching to relative threat especially in small cities and some types of towns. The regional relative threat and resources should be analyzed by more delicate mapping and software development in the future.

• 한국철도학회논문집
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• 제16권2호
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• pp.104-109
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• 2013

The paper will outline how hazard identification and risk evaluation can effectively be performed to obtain Tolerable Hazard Rates (THR). As a target group manufacturers are addressed, who face the situation, that for a generic application THRs are needed for compliance with EN 50129 [1]. Focusing on functional hazards this paper shows a possible hazard log and the relevant analysis methods. The terms safety barrier and barrier function will be introduced and used instead of the term "safety function". As functional hazards and barrier functions depend on each other, emphasis will be put on a comprehensive and detailed definition of barrier functions and the usage of function lists. By using detailed and complete hazard and barrier function definitions THRs can be obtained while at the same time the approach becomes clear how the hazard rates (HR) will be established.

• 한국식품과학회지
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• 제42권6호
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• pp.653-663
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• 2010

알(卵)류 및 축 수산물 321건에 대하여 엔로플록사신, 시프로플록사신, 노르플록사신, 아목시실린, 암피실린, 옥소린산 및 옥시테트라싸이클린, 테트라싸이클린, 클로르테트라싸이클린 및 독시싸이클린에 대한 모니터링을 실시한 결과 총 300건(93.5%)은 조사대상 동물용의약품이 불검출되었으며 검출된 21건(6.5%)의 시료 대부분은 현재 식품공전의 잔류허용기준 이하로 안전한 것으로 나타났다.

• 한국산학기술학회논문지
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• 제16권4호
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• pp.2602-2608
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• 2015

본 연구는 고춧가루의 HACCP(Hazard Analysis Critical Control Point) 시스템 적용에 필요한 미생물학적 위해 요소분석을 위한 목적으로 2014년 1월 10일~2014년 6월 13일까지 충주시 동량면 소재에 있는 용금농산에서 수행하였다. 고춧가루 제품의 모든 공정 단계들을 파악하여 공정흐름도를 작성하였고 미생물학적 위해를 제어할 수 있는 자외선살균공정에서 살균 시간을 변화시키면서 미생물의 변화를 시험한 결과 자외선 등 $20W{\times}12EA$, 살균 시간은 $63{\pm}3$초를 한계기준으로 결정하였다. 자외선살균 후에는 위해 미생물 검사 결과는 안전하나 제조환경과 작업자의 미생물 검사 결과 주기적인 세척 및 소독을 실시하여 미생물학적 위해를 감소시키고 작업자 위생교육 등을 통하여 개인위생을 준수해야 할 것으로 판단된다.