• 제목/요약/키워드: technical risk

검색결과 702건 처리시간 0.031초

실효성 있는 재해예방형 도시계획을 위한 개선방향 고찰 (Study on Urban Policies toward the Effective Disaster Prevention)

  • 김슬예;김미은;김창현;이상은
    • 한국안전학회지
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    • 제32권2호
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    • pp.124-131
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    • 2017
  • This study aims to contribute to urban policy for more effective disaster prevention, as abnormal natural disasters are becoming more frequent. Up to now, the urban plan for disaster prevention in Korea merely includes basic principles and necessities of measures as an early stage. Furthermore, there are difficulties to make specific programs because the legal system, technical instruments, and financial supports are not sufficient. Therefore, this study figures out problems in the current plan related to urban prevention after analyzing the legal system and practices. Resulting from case studies in developed countries, the study draws significant implications, as follows: enhancing legally binding force; improving the procedures for the programs; establising technical infrastructure. It first suggests a way for the urban policy for disaster prevention by considering our local features comprehensively. It then defines the roles of central, local governemnts and research institutions, and the procedure for urban disaster prevention planning building on the individual roles. This study concludes that an emphasis should be placed on institutional tools necessary to publish technical guideline and establish the system so that urban planners more easily access to disaster risk information.

Nurses, Healthy Women and Preventive Gynecological Examinations - Vlora City Scenario, Albania

  • Kamberi, Fatjona;Theodhosi, Gjergji;Ndreu, Vjollca;Sinaj, Enkeleda;Stramarko, Yllka;Kamberi, Leonard
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권1호
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    • pp.311-314
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    • 2016
  • Background: Nurses play an important role in preventive medicine because they represent the largest sector of health professionals. This role is very crucial in developing countries, which are going through rapid societal and economic changes, associated with a rising burden of cancers due to different risk factors. The current study aimed to compare health awareness between nurses and healthy women regarding preventive gynecological examinations and to answer the question - can nurses make a difference in women's health? Materials and Methods: This cross sectional research included a total of 150 women, 70 nurses and 80 healthy women, randomly selected. Data were collected in 2014 in Vlora city through a self-administered questionnaire that assessed different variables about preventive gynecological examinations. Results: Cervical screening rates were 20.3% and 41.8%, respectively, for nurses and healthy women, despite the former having a statistical significant greater knowledge of risk factors and symptoms. Conclusions: Even if the health awareness of nurse participants can be considered good, they need themselves to increase participation rates in cervical screening if they are to provide role models for health education/promotion addressing misconceptions and barriers.

연구 실험실 안전보건 관리제도 비교 - 한국과 독일 사례 고찰 (Comparison of Regulatory Systems for Safety and Health Management in Research Laboratories - Case Review between Korea and Germany)

  • 박지훈;성백경;마티아스 올리버 알트마이어;김용준
    • 한국산업보건학회지
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    • 제30권2호
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    • pp.99-108
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    • 2020
  • Objectives: This study aimed to compare the regulatory systems for laboratory safety and health management between Korea and Germany and discuss the implications. Methods: Laboratory safety and health regulations for legal enforcement and relevant technical guidelines in Korea and Germany were reviewed. Results: Lab safety and health management is enforced by the Act on the Establishment of Safe Laboratory Environment in Korea. Most provisions focus on supervisory control, that is, the principal's liability is emphasized. In addition, there is a lack of laboratory-specific procedures for safety and health management in the act since it is stipulated that other relevant regulations apply to some technical contents. Non-compulsory technical guidelines for lab safety and health management are also provided by the Korea Occupational Safety and Health Agency (KOSHA) in order to enable researchers to follow safe procedures. There is no independent regulation for lab safety and health in Germany, and it is also governed by several regulations. The German Social Accident Insurance Institute provides technical guidelines on lab safety and health, and these contain more specific content to allow them to be followed more easily compared to the KOSHA guidelines. The most remarkable differences between the regulation of each country were contents of the risk assessment and specific protect measures from hazardous agents. Conclusions: Regulatory control is an essential way to prevent accidents, but it is more important to create an environment in which all stakeholders, including individual lab members, are allowed to participate actively in safety and health management activities.

Probabilistic time-dependent sensitivity analysis of HPC bridge deck exposed to chlorides

  • Ghosh, Pratanu;Konecny, Petr;Lehner, Petr;Tikalsky, Paul J.
    • Computers and Concrete
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    • 제19권3호
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    • pp.305-313
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    • 2017
  • A robust finite element based reinforced concrete bridge deck corrosion initiation model is applied for time-dependent probabilistic sensitivity analysis. The model is focused on uncertainties in the governing parameters that include variation of high performance concrete (HPC) diffusion coefficients, concrete cover depth, surface chloride concentration, holidays in reinforcements, coatings and critical chloride threshold level in several steel reinforcements. The corrosion initiation risk is expressed in the form of probability over intended life span of the bridge deck. Conducted study shows the time-dependent sensitivity analysis to evaluate the significance of governing parameters on chloride ingress rate, various steel reinforcement protection and the corrosion initiation likelihood. Results from this probabilistic analysis provide better insight into the effect of input parameters variation on the estimate of the corrosion initiation risk for the design of concrete structures in harsh chloride environments.

A Risk Informed Approach to Relax AOTs and STIs in Technical Specifications

  • Cho, Sung-Hwan;Park, Byoung-Chul;Seo, Mi-Ro
    • 한국원자력학회:학술대회논문집
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    • 한국원자력학회 1998년도 춘계학술발표회논문집(1)
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    • pp.887-892
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    • 1998
  • A risk informed approach to relax AOTs and STIs of RPS/ESPAS in technical specifications of kori units 3, 4 was performed in this paper. With the proposed AOTs and STIs, system unavailabilities and core damage frequency were quantified using PSA model. The results shoe that core damage frequency is slightly increased by extending AOTs and STIs but negligible. As considering the benefits such as reduction of plant transients and man power for test and maintenance, the relaxation of AOTs/STIs of RPS/ESFAS is justified

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Safety-Economic Decision Making Model of Tropical Cyclone Avoidance Routing on Oceans

  • Liu, Da-Gang;Wang, De-Qiang;Wu, Zhao-Lin
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2006년도 Asia Navigation Conference
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    • pp.144-153
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    • 2006
  • In order to take TC forecasts from different observatories into consideration, and make quantitative assessment and analysis for avoiding TC routes from the view of safety and cost, a new safe-economic decision making method of TC avoidance routing on ocean was put forward. This model is based on combining forecast of TC trace based on neural networks, technical method to determine the future TC wind and wave fields, technical method of fuzzy information optimization, risk analysis theory, and meteorological-economic decision making theory. It has applied to the simulation of MV Tianlihai's shipping on ocean. The result shows that the model can select the optimum plan from 7 plans, the selected plan is in accordance with the one selected by experienced captains.

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Probabilistic seismic risk assessment of simply supported steel railway bridges

  • Yilmaz, Mehmet F.;Caglayan, Barlas O.;Ozakgul, Kadir
    • Earthquakes and Structures
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    • 제17권1호
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    • pp.91-99
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    • 2019
  • Fragility analysis is an effective tool that is frequently used for seismic risk assessment of bridges. There are three different approaches to derive a fragility curve: experimental, empirical and analytical. Both experimental and empirical methods to derive fragility curve are based on past earthquake reports and expert opinions which are not suitable for all bridges. Therefore, analytical fragility analysis becomes important. Nonlinear time history analysis is commonly used which is the most reliable method for determining probabilistic demand models. In this study, to determine the probabilistic demand models of bridges, time history analyses were performed considering both material and geometrical nonlinearities. Serviceability limit states for three different service velocities were considered as a performance goal. Also, support displacements, component yielding and collapse limits were taken into account. Both serviceability and component fragility were derived by using maximum likely hood methods. Finally, the seismic performance and critical members of the bridge were probabilistically determined and clearly presented.

플랜트 프로젝트 리스크의 평가 및 관리시스템에 관한 연구 (Assessment and Management System for Various Risks in Plant Projects)

  • 안승규;조동환;허진혁;문승재;유호선
    • 플랜트 저널
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    • 제6권1호
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    • pp.56-63
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    • 2010
  • While the local plant market is reducing its volume, the plant market over the world since 2000s is rapidly expanding. The nation's construction companies, aggressively dedicated in launching out overseas plant market, increase the volume of orders in that sector, but there also are much difficulty in the project management as those projects ordered are gradually large scaled with more cutting-edge high-tech requirements along with comparatively higher risk. Though the local construction companies have developed their own types of measures to analyze the risk evaluation putting into practice, the specialized decision-making model for the overseas plant market or the risk measure understandable easily and applicable practically is not yet shown. This paper aims at providing the methodology to evaluate the risk by way of constructing the risk evaluation process in order to induce risk measuring elements through appropriate indexing system. Furthermore, through studying the risk management system, it aims to seek for a thorough risk management method from beginning of the project to the end.

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플랜트 유틸리티 시공에서 리스크 관리에 관한 연구 (On the Analysis of Risk Management for a Utility Construction Work in Plant Projects)

  • 한기돈;허진혁;문승재;유호선
    • 플랜트 저널
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    • 제6권1호
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    • pp.64-70
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    • 2010
  • From 2000, the world plant market, especially plant developing business related to oil and gas, has been increasing. Domestic construction companies advance to overseas plant construction market actively, and proportioning to this, an importance of utility construction is increasing. However, the project becomes large and high-tech, and many companies experience difficulty of project management due to relatively high risk of overseas construction. In this study, we built the standard process with which domestic company can evaluate the risk of overseas plant utility construction. Primary factors for risk evaluation is derived, classification system is made out, primary factor is analyzed, and counter plan is suggested. And thorough management of risk is performed by risk management organization that manages the risks, risk control methods, reports and monitors through risk sheet and risk action log from the start of project to the end.

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A Study on the Development the Maritime Safety Assessment Model in Korea Waterway

  • Park, Young-Soo;Kim, Jong-Sung;Aydogdu, Volkan
    • 한국항해항만학회지
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    • 제37권6호
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    • pp.567-574
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    • 2013
  • Although Korea coastal area has the increasing potential marine accident due to frequent ship's encounter, increased vessel traffic and large vessel, there is no specific model to evaluate the navigating vessel's risk considering the domestic traffic situation. The maritime transport environmental assessment is necessary due to the amended maritime traffic law. However, marine safety diagnosis is now carried out by foreign model. In this paper, therefore, we suggest a domestic traffic model reflecting the characteristics of korea coastal area and navigator's risk as we named PARK(Potential Assessment of Risk) model. We can evaluate the subjective risk by establishing the model and model output into maritime risk exposure system. To evaluate this model's effectiveness, we used ship handling simulation and applied, analyzed collision accident which occurred in korea coastal area. And also, we applied integrated to an ECDIS program for monitoring traffic risk of vessels with real time based AIS data and apply to evaluate traffic risk in busan harbor waterway. As a result, we could evaluate busan harbor waterway risk effectively.