• 제목/요약/키워드: accident

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고장진단 알고리즘 개발 (Development of Algorithm for Fault Diagnosis)

  • 서규석;옥치연;백영식;김정년
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 추계학술대회 논문집 전력기술부문
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    • pp.248-250
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    • 2003
  • Recently, electric power system's situation grows gradually so Fault Diagnosis is being complicated and is felt difficult. And ability that operator who is using electric power system must do correct judgment of power system state, and can cope at fault of power system state is required. Therefore, large size power system is divided into predefined minimum module, and define each module accident type. We use and compare defined accident type, we can know easily accident that happen forward. Therefore, large size power system using module that is defined to each section common accident type search in this paper. Therefore, large size power system using module that is defined to each section, we search for common accident type. And when accident in electric power system happens, I wish to explain about process that can do fault diagnosis in more easy and fast time, because using accident type that it is verified in front.

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데이터융합, 앙상블과 클러스터링을 이용한 교통사고 심각도 분류분석 (Data Fusion, Ensemble and Clustering for the Severity Classification of Road Traffic Accident in Korea)

  • 손소영;이성호
    • 대한산업공학회지
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    • 제26권4호
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    • pp.354-362
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    • 2000
  • Increasing amount of road tragic in 90's has drawn much attention in Korea due to its influence on safety problems. Various types of data analyses are done in order to analyze the relationship between the severity of road traffic accident and driving conditions based on traffic accident records. Accurate results of such accident data analysis can provide crucial information for road accident prevention policy. In this paper, we apply several data fusion, ensemble and clustering algorithms in an effort to increase the accuracy of individual classifiers for the accident severity. An empirical study results indicated that clustering works best for road traffic accident classification in Korea.

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석유화학 공정의 가상사고 시나리오 유형분석 (Typical Pseudo-accident Scenarios in the Petrochemical Process)

  • 윤동현;강미진;이영순;김창은
    • 한국안전학회지
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    • 제18권3호
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    • pp.75-80
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    • 2003
  • This paper presents a set of typical pseudo-accident scenarios related to major equipments in petrochemical plants, which would be useful for performing such quantitative risk analysis techniques as fault tree analysis, event tree analysis, etc. These typical scenarios address what the main hazard of each equipment might be and how the accident might develop from an "initiating event". The proposed set of accident scenarios consists of total thirteen (13) scenarios specific for five (5) major equipments like reactor, distillation column, etc., and has been determined and screened out of one hundred and twenty-five (125) potential accident scenarios that were generated by performing semi-quantitative risk analysis practically for twenty-five (25) petrochemical processes, considering advices from the operation experts. It is assumed that with simple consideration or incorporation of plant-specific conditions only, the proposed accident scenarios could be easily reorganized or adapted for the relevant process with less time and labor by the safety engineers concerned in the petrochemical industries.ndustries.

AHP를 이용한 교통사고 예방 (Prevention of Traffic Accident using AHP Rules)

  • 진현수
    • 한국산학기술학회:학술대회논문집
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    • 한국산학기술학회 2008년도 춘계학술발표논문집
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    • pp.157-159
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    • 2008
  • AHP를 사용하 교통망 사고 예방 처리 기법은 아직 우리나라에서는 처음 시도되어지는 예방법이라 할수 있다. 인공지능을 사용하여 사고처리하는 방법을 시도를 하였보았으나 그 외의 방법은 문외한이라 할수 있을 정도로 우리나라에서는 보기드문 현상이라 할수 있다. 따라서 계층분석기법을 사용하여 요소분석보다 훨씬 나은 처리방법이므로 좀더 나은 기법이 될 것 같고 다음으로 처리되는 방법의 기본 모티브가 될 영향이 크다라고 한다.

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우리나라 산업재해 통계자료의 재해 구성 비율의 분석에 관한 연구 (An Analysis of Accident Ratio of Korean Industrial Accident Reports)

  • 이상도
    • 산업경영시스템학회지
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    • 제19권39호
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    • pp.99-116
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    • 1996
  • The production activity by human is accompanied by various accidents, resulting in human and property loss. If information on these industrial accident can be collected, organized and analyzed for a period of time and be used in the decision-making process for the purpose of preventing industrial accident, we will be able to get rid of industrial accident and prevent human and property loss and creat a pleasant industrial atmosphere. In order to achieve this goal, the collected information should be accurate, and trusted in the work place or government agency the information is being utilized. This research analyzed the problem in our nation's industrial accident statistics and estimated the number of accidents that are occurring and suggested improvement measures so that the industrial accident statistics can be calculated accurately.

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FUEL BEHAVIOR UNDER LOSS-OF-COOLANT ACCIDENT SITUATIONS

  • CHUNG HEE M.
    • Nuclear Engineering and Technology
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    • 제37권4호
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    • pp.327-362
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    • 2005
  • The design, construction, and operation of a light water reactor (LWR) are subject to compliance with safety criteria specified for accident situations, such as loss-of-coolant accident (LOCA) and reactivity-initiated accident (RIA). Because reactor fuel is the primary source of radioactivity and heat generation, such a criterion is established on the basis of the characteristics and performance of fuel under the specific accident condition. As such, fuel behavior under accident situations impact many aspects of fuel design and power generation, and in an indirect manner, even spent fuel storage and management. This paper provides a comprehensive review of: the history of the current LOCA criteria, results of LOCA-related investigations on conventional and new classes of fuel, and status of on-going studies on high-burnup fuel under LOCA situations. The objective of the paper is to provide a better understanding of important issues and an insight helpful to establish new LOCA criteria for modem LWR fuels.

KIDAS 사고 통계에서 표준 연령 남녀의 상해 분석 및 해석연구 (Injuries Analysis and Interpretation of Standard Age and Sex in KIDAS Accident Statistics)

  • 박지양;윤영한
    • 자동차안전학회지
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    • 제11권1호
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    • pp.30-35
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    • 2019
  • KIDAS (Korean In-Depth Accident Study) is a data structure of accident investigation type, vehicle breakage and human injury database. A consortium of research institutes, universities, and medical institutions has been established and operated. KIDAS has the strongest difference from the TAAS (Traffic Accident Analysis System), which is the data of the National Police Agency, that it can grasp the injury information of passengers. In this study, the mean age and weight of the most frequent accident types in the KIDAS accident statistics were calculated to determine the degree of injury according to gender. Through the MADYMO analysis, it is aimed to grasp the difference of dummy injury using commercial dummy models and scaling models are currently used.

자율운항선박의 안전운항을 위한 사고대응 지원서비스 설계 및 개발 (Design and development of accident response support service for safe operation of MASS)

  • 남경태;이영근;김남수;김천수
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2022년도 춘계학술대회
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    • pp.441-442
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    • 2022
  • 본 연구는 자율운항선박 운용에 따른 선박사고 발생 시 선박사고 단계 구분에 따른 사고대응 지원정보를 제공하는 자율운항선박 사고대응 지원서비스의 설계와 운영소프트웨어 개발에 대한 연구이다.

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System-Theoretic View of Marine Pilotage Accident in Busan New Port

  • Wamugi Juliet Wangui;Sora Kim;Young-soo Park
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2023년도 춘계학술대회
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    • pp.142-143
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    • 2023
  • A contact accident with gantry cranes involving the container ship MV Milano Bridge in Busan New Port took place on 6 April 2020. The report concluded that the pilot unreasonably piloted the ship with impaired maneuverability and without a proper pilotage plan. Analyzing the entire system by CAST model gives a holistic approach in linking all the key components and their roles as well as violations that led to the accident, stepping away from placing the blame on only one component in the system. Furthermore, analyzing the accident as an system theory gives a clear overview of the relationships between system components and how these interactions led to the accident.

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A Framework for Control of Safety Budget-Industrial Accidents Relationship

  • Choi, Gi-Heung
    • International Journal of Safety
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    • 제7권2호
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    • pp.23-26
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    • 2008
  • This study focuses on the issue of control performance of safety budget for preventing and reducing industrial accidents in Korea. The effect of safety budget such as industrial accident prevention fund on the safety performance is statistically examined first. The role and control performance of industrial accident prevention fund is particularly addressed to reduce the related accidents. The effectiveness of the industrial accident prevention fund-industrial accident relationship is then explained with a simple PI control mechanism.