• 제목/요약/키워드: Risk Identification

검색결과 824건 처리시간 0.028초

Evaluating comparisons of geological hazards in landslides using fuzzy logic methods and hierarchical analysis

  • Shasha Yang;Maryam Shokravi;H. Tabatabay
    • Steel and Composite Structures
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    • 제48권5호
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    • pp.499-505
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    • 2023
  • Geological hazards in landslide is one of the most extensive and destructive phenomena are among natural disasters. According to the topography high mountains, tectonic activity, high seismicity, diverse conditions Geology and climate, basically China to create a wide spectrum of landslides have natural conditions and these landslides are annual. They cause a lot of financial losses to the country. It is very difficult to predict the time of the landslide, hence the identification landslide sensitive areas and zoning of these areas based on the potential risk is very important. Therefore, it should be susceptible areas landslides should be identified in order to reduce damages caused by landslides find. the main purpose of landslide sensitivity analysis is identification high-risk areas and as a result, reducing damages caused by landslides It is the way of appropriate actions.

뇌경색환자의 혈중 homocysteine 및 d-dimer 농도와 한의변증유형에 대한 연구 (Study for Blood Homocysteine Levels and d-dimer Levels of Cerebral Infarction Patients and Pattern Identification)

  • 박선영;공경환;고호연
    • 동의생리병리학회지
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    • 제26권1호
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    • pp.113-119
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    • 2012
  • The aim of this study was to investigate the differences in blood homocysteine levels and blood d-dimer levels of cerebral infarction patients categorized by Pattern Identification. We studied hospitalized patients within 4 weeks after the onset of stroke who were admitted to the Oriental Internal Medical Department at Semyung University Chungju Oriental Medical Hospital from May 2008 to September 2009. We analyzed risk factors and blood homocysteine levels and blood d-dimer levels accordings to Pattern Identification in Cerebral infarction patients. A total of 49 patients were included in the trial. No statistical significance was noted for any characteristics except body weight and body mass index. Body weight and body mass index were significantly higher Dampness-Phlegm pattern. On past history of patients, prevalence of DM was significantly higher in Fire-Heat pattern than that of other patterns. There was no significant difference of blood homocysteine levels and blood d-dimer levels among Pattern Identification. This study investigated the differences in blood homocysteine levels and blood d-dimer levels of cerebral infarction patients categorized by Pattern Identification. The correlation in homocysteine and d-dimer levels and Pattern Identification was not clarified.

뇌경색 환자의 경동맥 초음파 검사와 한방 중풍 변증과의 관련성 연구 (Study on the Relationship between Carotid Intima-Media Thickness and Korean Standard of Pattern Identification in Ischemic Stroke Patients)

  • 김경민
    • 대한중풍순환신경학회지
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    • 제15권1호
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    • pp.29-38
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    • 2014
  • ■ Objectives The purpose of this study was to investigate the correlation of The Korean Standard Pattern Identification for Stroke and Intima-Media Thickness of common carotid artery(CCA-IMT). ■ Methods 100 subjects with acute ischemic stroke were recruited from the patients admitted to DongEui Medical Center from the June 2011 to January 2014. We assessed 100 patient's Common Carotid Intima Media Thickness data by B Mode ultrasonography. We investigated pattern identification of all subjects based on Korean Standard Pattern Identification for Stroke-III. then, We analyzed their characteristics, risk factor, blood test result, life style. ■ Results We analyzed indicators of Korean Standard Pattern Identification for Stroke-III by Common Carotid Intima Media Thickness difference. As a result, pale complexion, look powerless, drowsiness like to lie, heat vexation and aversion to heat were significantly higher in the CCAIMT ≧ 1.0mm group then in the CCA-IMT < 1.0mm group. ■ Conclusion According to the analysis, the Relationship between Carotid Intima-Media Thickness and The Korean Standard Pattern Identification for Stroke in Ischemic Stroke Patients were founded. To acquire more concrete conclusion on this theme, we need more research.

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An Analysis on the Relative Importance of the Risk Factors for the Marine Traffic Environment using Analytic Hierarchy Process

  • Lee, Hong-Hoon;Kim, Chol-Seong
    • 해양환경안전학회지
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    • 제19권3호
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    • pp.257-263
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    • 2013
  • The classification of risk factors and the identification of risk acceptance criteria are core works to assess risk levels with high enough confidential level in the field of marine traffic environment. In the previous study work, the twenty kinds of risk factors and its assessment criteria for the domestic marine traffic environment were proposed. In this paper, with these previous studying results, the relative importance of the risk factors were analyzed by questionnaire survey of marine traffic experts using the analytic hierarchy process. The analysis results showed that the relative importance of the visibility restriction is the highest among the twenty kinds of risk factors, and the relative importance of the traffic condition is the highest among the five kinds of risk categories. As results from analysis, it is expected that the approaching method on the relative importance is to be one of basic techniques for the development of risk assessment models in the domestic marine traffic environment.

4D객체 활용에 의한 건설공사 리스크 인자별 중요도 시각화 기법연구 (Visualizing Method of 4D Object by Weight of Construction Risk Factors)

  • 강인석;박서영;김창학;문현석
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2006년도 정기학술발표대회 논문집
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    • pp.571-573
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    • 2006
  • 본 연구에서는 리스크관리 인자별 중요도와 4D 객체 시각화방법론을 통한 리스크관리 정보의 시각화 모델을 제안한다. 리스크관리 프로세스 모델은 WBS(Work Breakdown Structure)와 RBS(Risk Breakdown Structure)를 통해 구성되며, RBS에서 분류된 리스크 인자는 퍼지 분석기법을 통해 중요도(Weight)가 분석된다. 이 중요도는 4D 시각화를 위한 건설공사 객체(Object)의 속성 데이터로 지정된다. 또한 Object의 4D 시각화를 위한 방안으로는 4D 시뮬레이션기법이 활용되며, 등급별로 구분된 리스크 인자의 중요도와 4D 시뮬레이션을 통해 직접적인 건설공사 부위별 리스크관리 수준 확인과 부위별 리스크 인자의 시각화가 가능하도록 하는 방법론을 제시한다.

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품질도구를 활용한 제품개발 프로젝트관리 (A Study on Project Management for Product Development using Quality Tools)

  • 박영현
    • 품질경영학회지
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    • 제45권4호
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    • pp.665-676
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    • 2017
  • Purpose: The purpose of this paper proposes an effective and systematic methods of risk management in product development project. Methods: This paper first discusses what risk factors be considered during product development period and then presented a model for preventive risk management. For that, this paper proposes how to evaluate the risk factors and risk events, and how to select prevention action for managing risk factors effectively. For this process, this paper uses well-known quality tools such as House of Quality (HOQ) and Failure Mode and Effects Criticality Analysis (FMECA) methods. Results: There is an inherent need for the development of robust risk management framework in order for product development projects to be successful. The identification and quantification of risk factors, risk events, and prevention actions can have significant effects on the success of a product development projects. Project managers can implement the proposed model to improve project success. Conclusion: The findings showed that this method would be effective for project managements in dealing with risk management issues in product development projects. This method presented would be an one of good guidelines for practitioners in the industry.

빅데이터 프로젝트의 위험요인 식별과 우선순위 분석 (Risk Factors Identification and Priority Analysis of Bigdata Project)

  • 김승희
    • 한국인터넷방송통신학회논문지
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    • 제19권2호
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    • pp.25-40
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    • 2019
  • 최근 많은 기업들이 대용량의 빅데이터 분석을 통하여 신사업을 발굴하거나 경영 및 기술 전략의 전환에 앞서 명시적인 근거를 마련하기 위하여 빅데이터 분석 및 활용을 위한 프로젝트를 수행하고 있다. 그러나 다수의 빅데이터 프로젝트가 정해진 기한 내에 종료를 못하여 실패하고 있음이 국내외적 문제로 대두되고 있다. 이는 공학적 관점에서 빅데이터 프로젝트의 위험 관리를 위한 지식 기반이 매우 미흡한 현 상황과 무관하지 않다. 따라서 본 논문에서는 빅데이터 구축 및 활용 프로젝트의 위험 요인을 분석하고, 중요도가 높은 위험 요인들을 도출한다. 이를 위해 문헌 연구로부터 프로젝트 위험 요인을 추출하고 친화도 기법을 통해 그룹화한 후 전문가 설문을 통해 중요도가 높은 위험 요인을 도출한다. 도출된 요인들을 대상으로 요인분석을 통해 빅데이터 프로젝트의 위험요인 분류표를 도출한다. 본 연구는 빅데이터 프로젝트에 대한 위험 식별, 위험 평가, 위험 분석을 위한 가장 기초가 되는 통제 지표의 개발이라는 데 큰 의미가 있으며, 향후 빅데이터 프로젝트와 관련된 효율적인 위험 관리의 이론적 근거를 제공함으로써 성공적인 빅데이터 프로젝트를 견인하는데 기초자료로써 크게 기여할 것으로 사료된다.

국적일반화물선 초기안전성평가 연구(2) (A Study on High-level FSA for Korean-flagged General Cargo Ships)

  • 이종갑;나성;김홍태
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2010년도 추계학술대회
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    • pp.112-117
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    • 2010
  • 본 논문은, 국적일반화물선 공식안전성평가(Formal Safety Assessment, 이하 FSA) 연구의 1, 2 단계에 해당하는 위험요소 식별(Hazard identification) 및 식별된 사고 시나리오에 대한 위험도 분석(Risk analysis) 결과를 소개한 "국적일반화물선 초기안전성평가 연구(1)"에 이어서 FSA 연구의 3, 4 그리고 5단계의 내용으로, 국적일반화물선의 위험도 수준을 저감할 수 있는 위험도제어방안들(Risk Control Options)을 식별하는 단계(Step 3)와 식별된 위험도제어방안들 중 전문가 의견수렴을 통하여 선별된 위험도제어방안들을 대상으로 한 비용-효과 평가 단계(Step 4: Cost-Benefit Assessment) 그리고 비용-효과 평가의 결과를 정리하여 국적일반화물선의 안전성 제고를 위한 구체적인 방안을 제안하는 단계(Step 5: Recommendation for Decision Making)의 결과를 소개하였다.

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Fingerprinting of Listeria monocytogenes by Amplified Fragment Length Polymorphism Analysis

  • Jin, Hyun-Seok;Kim, Jong-Bae
    • 대한의생명과학회지
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    • 제8권1호
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    • pp.29-37
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    • 2002
  • Listeria monocytogenes poses an increasing health risk, which in part is due to increasing health risk, consumption of ready-to-eat food products and the introduction of increasing numbers of food products from regions with different dietary habits. L. monocytogenes can be present in meat, shellfish, vegetables, unpasteurised milk and soft cheese and poses a risk if food containing these products is stored at refrigeration temperature and is not properly heated before consumption, as L. monocytogenes is psychrophilic. Amplified-fragment length polymorphism (AFLP) analysis is the method of genotypic techinique in which adaptor oligonucleotides are ligated to restriction enzyme fragments and then used as target sites for primers in a PCR amplification. The amplified fragments are electrophoretically separated to give strain-specific band profiles. Single-enzyme approach that did not require costly equipment or reagents for the fingerprinting of strains of Listeria monocytogenes was developed. Single-enzyme amplified fragment length polymorphism (SE-AFLP) analysis was used to perform species and strain identification of Salmonella, Shigella, Yersinia and E. coli. By careful selection of AFLP primers, it was possible to obtain reproducible and sensitive identification to strain level. The AFLP patterns of L. monocytogenes are divided by the kinds of specimens in which were isolated. SE-AFLP fragments can be analyzed using standard gel electrophoresis, and can be easily scored by visual inspection, due to the low complexity of the fingerprint obtained by this method. These features make SE-AFLP suitable for use in either field or laboratory applications.

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HAZOP Study를 사용한 ATSRX의 위험원도출 및 리스크 완화에 관한 연구 (A Study on the Hazard Identification and Risk Mitigation for ATSRX Using Hazard and Operability Study)

  • 이준호;이강미;김용규;신덕호
    • 한국철도학회논문집
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    • 제8권6호
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    • pp.533-538
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    • 2005
  • In this paper we identity the hazard using HAZOP study for ATSRX which is a subsystem of the ATP system, and we study a safety management method for the mitigation of the risk to the acceptable level. ATSRX is a device that make a train which has a ATP system operate in ATS line. For this ATSRX send a induction signal with ATS system to vehicle controller. Thus ATSRX can be said a safety equipment that makes a train operate safely. In order to identify the hazard for the internal faults in ATSRX system, we employ HAZOP study method which is recommended as hazard identification in IEC 62278, RAMS requirements in railway signal, and also it provide the detail activity in IEC 61882. Thus, in this paper we perform HAZOP study based on ATSRX related standards and using the assessment of the identified hazard we study a method to guarantee the system safety through the change of the design to mitigate the risk to the acceptable level.