• 제목/요약/키워드: Risk Classification

검색결과 931건 처리시간 0.026초

수입 화물의 위험 기반 검사(RBI)를 위한 규칙 기반 위험 분류 알고리즘의 설계 및 구현 (Design and Implementation of a Rule-based Risk Classification Algorithm for Risk-based Inspection (RBI) of Imported Goods)

  • 차주호;허훈
    • 디지털산업정보학회논문지
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    • 제19권3호
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    • pp.129-136
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    • 2023
  • In this paper, we describe a rule-based risk classification algorithm to perform Risk-based Inspection (RBI) on imported goods at customs. The RBI system is a method to automatically select which cargos have to be inspected and manage potential risks in boarder. In this study, we designed a rule-based risk classification algorithm for RBI solutions and implemented them using the Svelte web application framework. The risk classification algorithm proposed in this paper uses different indicative risk factors such as HS code, country of origin, importer's reliability, trade relationships, and logistics routes to classify cargos into Green, Yellow, and Red channels. To achieve this, we assigned risk categories to each risk factor and randomly generated risk scores within a specific range for each risk category. This system is expected to contribute to the increased efficiency of customs operations and protect public safety by minimizing the risk of imported hazardous materials.

An integrated risk-informed safety classification for unique research reactors

  • Jacek Kalowski;Karol Kowal
    • Nuclear Engineering and Technology
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    • 제55권5호
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    • pp.1814-1820
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    • 2023
  • Safety classification of systems, structures, and components (SSC) is an essential activity for nuclear reactor design and operation. The current regulatory trend is to require risk-informed safety classification that considers first, the severity, but also the frequency of SSC failures. While safety classification for nuclear power plants is covered in many regulatory and scientific publications, research reactors received less attention. Research reactors are typically of lower power but, at the same time, are less standardized i.e., have more variability in the design, operational modes, and operating conditions. This makes them more challenging when considering safety classification. This work presents the Integrated Risk-Informed Safety Classification (IRISC) procedure which is a novel extension of the IAEA recommended process with dedicated probabilistic treatment of research reactor designs. The article provides the details of probabilistic analysis performed within safety classification process to a degree that is often missing in most literature on the topic. The article presents insight from the implementation of the procedure in the safety classification for the MARIA Research Reactor operated by the National Center for Nuclear Research in Poland.

NATM 터널 공정리스크 데이터베이스 구축 및 리스크 분류체계 개발 (Establishment of Risk Database and Development of Risk Classification System for NATM Tunnel)

  • 김현비;바타갈래 위누리 키만디가 가루나라내;김병수
    • 한국건설관리학회논문집
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    • 제25권1호
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    • pp.32-41
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    • 2024
  • 건설산업은 안전사고뿐 아니라 공기지연, 원가상승, 환경오염 등의 여러 복합적인 리스크가 발생하며 이를 해결하기 위한 관리기술이 필요하다. 그 중에서 프로젝트에 직접적인 영향을 미치는 공정리스크의 관리는 그 중요성에 비해 관련정보가 부족한 실정이다. 본 연구는 각 프로젝트마다 상이한 분류체계 사용으로 인한 리스크 정보검색의 어려움을 해소하기 위하여 MATM 터널 공정리스크분류체계를 개발하고자 하였다. 리스크수집은 기존 문헌검토와 Experience Mining 기법을 사용하였고 DB구축은 자연어처리 개념을 활용하였다. 분류체계의 구조는 자료의 호환성을 고려하여 기존 WBS 구조를 채택하였고, WBS의 공종과 연결된 RBS를 구축하였다. 연구결과 공종별 리스크를 쉽게 파악하고 리스크에 연결된 리스크특성과 리스크요인이 직관적으로 드러나는 리스크분류체계가 완성되었다. 구축된 분류체계의 활용성 검증결과 사용자의 키워드 입력으로 공종별 리스크와 리스크요인이 쉽게 식별되어 분류체계는 유효한 것으로 나타났다. 본 연구를 통해 NATM터널 계획 및 설계 시 작업공종에 따르는 리스크를 미리 식별하고 그 요인에 맞는 대응방안을 수립하여 비용과 공사기간의 증가를 방지하는데 기여할 수 있을 것으로 기대된다.

A More Detailed Classification of Mild Head Injury in Adults and Treatment Guidelines

  • Lee, Young-Bae;Kwon, Sun-Ju
    • Journal of Korean Neurosurgical Society
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    • 제46권5호
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    • pp.451-458
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    • 2009
  • Objective : The purpose of this study was to analyze risk factors that are associated with intracranial lesion, and to propose criteria for classification of mild head injury (MHI), and appropriate treatment guidelines. Methods : The study was based on 898 patients who were admitted to our hospital with Glasgow Coma Scale (GCS) score of 13 to 15 between 2003 and 2007. The patients' initial computerized tomography (CT) findings were reviewed and clinical findings that were associated with intracranial lesions were analyzed. Results : GCS score, loss of consciousness (LOC), age and skull fracture were identified as independent risk factors for intracranial lesions. Based on the data ana lysed in this study, MHI patients were divided into four subgroups : very low risk MHI patients are those with a GCS score of 15 and without a history of LOC or headache; low risk MHI patients have a GCS score of 15 and with LOC and/or headache; medium risk MHI patients are those with a GCS score of 15 and with a skull fracture, neurological deficits or with one or more of the risk factors; high risk MHI patients are those with a GCS score of 15 with abnormal CT findings and GCS score of 14 and 13. Conclusion : A more detailed classification of MHI based on brain CT scan findings and clinical risk factors can potentially improve patient diagnosis. In light of our findings, high risk MHI patients should be admitted and treated in same manner as those with moderate head injury.

소방용품의 강제인증을 위한 위험도평가 및 품목분류에 관한 연구 (A Study on Risk Evaluation and Classification of Fire Equipments for Certification)

  • 최기흥
    • 한국안전학회지
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    • 제24권6호
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    • pp.7-12
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    • 2009
  • This study focuses on the classification of fire equipments for certification based on the risk evaluation. In general, known statistics on fire equipment-related accidents needs to be used for risk evaluation. When statistics is not available, however, expected frequency and severity of accident for individual equipment can be taken into account in evaluating the related risks. Based on the level of inherent risks, each equipment is then classified into three categories for certification. For equipments that risk evaluation is not possible, characteristics of those products such as reliability are considered for classification. Once classified, each equipment is assigned an appropriate certification module.

열차 충돌/탈선사고 위험도 평가모델 개발 (Development of the Risk Assessment Model for Train Collision and Derailment)

  • 최돈범;왕종배;곽상록;박찬우;김민수
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2008년도 춘계학술대회 논문집
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    • pp.1518-1523
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    • 2008
  • Train collision and derailment are types of accident with low probability of occurrence, but they could lead to disastrous consequences including loss of lives and properties. The development of the risk assessment model has been called upon to predict and assess the risk for a long time. Nevertheless, the risk assessment model is recently introduced to the railway system in Korea. The classification of the hazardous events and causes is the commencement of the risk assessment model. In previous researches related to the classification, the hazardous events and causes were classified by centering the results. That classification was simple, but might not show the root cause of the hazardous events. This study has classified the train collision and derailment based on the relevant hazardous event including faults of the train related the accidents, and investigates the causes related to the hazardous events. For the risk assessment model, FTA (fault tree analysis) and ETA (event tree analysis) methods are introduced to assess the risk.

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Comparative Analysis of Terminology and Classification Related to Risk Management of Radiotherapy

  • Oh, Yoonjin;Kim, Dong Wook;Shin, Dong Oh;Koo, Jihye;Lee, Soon Sung;Choi, Sang Hyoun;Ahn, Sohyun;Park, Dong-wook
    • 한국의학물리학회지:의학물리
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    • 제27권3호
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    • pp.131-138
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    • 2016
  • We analyzed the terminology and classification related to the risk management of radiation treatment overseas to establish the terminology and classification system for Korea. This study investigated the terminology and classification for radiotherapy risk management through overseas research materials from related organizations and associations, including the IAEA, WHO, British group, EC, and AAPM. Overseas risk management commonly uses the terms "near miss", "incident", and "adverse event", classified according to the degree of severity. However, several organizations have ambiguous terminologies. They use the term "near miss" for events such as a near event, close call, and good catch; the term "incident" for an event; and the term "adverse event" for the likes of an accident and an event. In addition, different organizations use different classifications: a "near miss" is generally classified as "incident" in most cases but not classified as such in BIR et al. Confusion might also be caused by the disunity of the terminology and classification, and by the ambiguity of definitions. Patient safety management of medical institutions in Korea uses the terms "near miss", "adverse event", and "sentinel event", which it classifies into eight levels according to the severity of risk to the patient. Therefore, the terminology and classification for radiotherapy risk management based on the patient safety management of medical institutions in Korea will help in improving the safety and quality of radiotherapy.

Diagnostic Classification Scheme in Iranian Breast Cancer Patients using a Decision Tree

  • Malehi, Amal Saki
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권14호
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    • pp.5593-5596
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    • 2014
  • Background: The objective of this study was to determine a diagnostic classification scheme using a decision tree based model. Materials and Methods: The study was conducted as a retrospective case-control study in Imam Khomeini hospital in Tehran during 2001 to 2009. Data, including demographic and clinical-pathological characteristics, were uniformly collected from 624 females, 312 of them were referred with positive diagnosis of breast cancer (cases) and 312 healthy women (controls). The decision tree was implemented to develop a diagnostic classification scheme using CART 6.0 Software. The AUC (area under curve), was measured as the overall performance of diagnostic classification of the decision tree. Results: Five variables as main risk factors of breast cancer and six subgroups as high risk were identified. The results indicated that increasing age, low age at menarche, single and divorced statues, irregular menarche pattern and family history of breast cancer are the important diagnostic factors in Iranian breast cancer patients. The sensitivity and specificity of the analysis were 66% and 86.9% respectively. The high AUC (0.82) also showed an excellent classification and diagnostic performance of the model. Conclusions: Decision tree based model appears to be suitable for identifying risk factors and high or low risk subgroups. It can also assists clinicians in making a decision, since it can identify underlying prognostic relationships and understanding the model is very explicit.

해외 발전플랜트 리스크 분류체계 및 관계형 데이터베이스 구축 방안 (Risk Classification and Relational Database Schema in Overseas Power Plant Construction)

  • 김민;정영수
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2014년도 춘계 학술논문 발표대회
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    • pp.192-193
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    • 2014
  • Due to the decreasing domestic construction market since 2007, Korean construction companies are expanding overseas market. As a result, the international market share by Korea has been continuously increased and achieved 65.2 billion dollars in 2013. Despite of such visible results, profitability concerns are constantly arising. It is pointed out that the low-priced bid competition between Korean construction companies and various unpredictable risks are the most crucial factors which aggravate the profitability in the overseas projects. From this point of view, predicting the risks in advance and controling them could be the most important tasks to improve the profitability. This research proposed 202 risk factors with a hierarchy and relational database schema for power plant construction, which is based on the 24 risk classifications in previous research (Kim & Jung 2013). Proposed risk classification and relational database schema could be utilized as the basic data in risk management system.

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A Study of Institutional Status of Risk Management for Radiotherapy in Foreign Country

  • Lee, Soon Sung;Shin, Dong Oh;Ji, Young Hoon;Kim, Dong Wook;An, Sohyoun;Park, Dong-Wook;Cho, Gyu Suk;Kim, Kum-Bae;Koo, Jihye;Oh, Yoon-Jin;Choi, Sang Hyoun
    • 한국의학물리학회지:의학물리
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    • 제27권3호
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    • pp.139-145
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    • 2016
  • With the development in field of industry and medicine, new machines and techniques are being launched. Moreover, the complexity of the techniques is associated to an increasing risk of incident. Especially, a small error in radiotherapy can lead to a serious patient-related incident, risk management is necessary in radiotherapy in order to reduce the risk of incident. However, in field of radiotherapy, there are no legally binding clauses for risk management and there is an absence of risk management systems at an institutional level. Therefore, we analyzed institutional status of risk management, reporting & classification systems, and risk assessment & analysis in 31 countries. For risk management and reporting systems, 65% of countries investigated had legislation or regulations; however, only 35% of countries used classification systems. It was found that 43% more countries had legislation for risk management in healthcare than those for radiotherapy; 19% more countries had reporting systems for healthcare than those for radiotherapy. For classification systems, 60% more countries had legislation, recommendation, and guidelines in the field of radiotherapy than those for healthcare. Recently, international institutes have published several reports for risk management and patient safety in radiotherapy, owing to which, countries adopting risk management for radiotherapy will gradually increase. Before adopting risk management in Korea, we should precisely understand the procedures and functions of risk management, in order to increase efficiency of risk management because classification & reporting system and risk assessment & analysis are connected organically, and institutional management is needed for high quality of risk management in Korea.