• Title/Summary/Keyword: Safety assessment

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Assessment of Safety Performances in Operation of Human-centered Robots Using Geometric Tolerance and Head Injuries Criteria

  • Choi, Gi-Heung
    • International Journal of Safety
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    • v.6 no.1
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    • pp.1-6
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    • 2007
  • Operation of human-centered robot, in general, facilitates the creation of new process that may potentially harm the human operators. Design of safety-guaranteed operation of human-centered robots is, therefore, important since it determines the ultimate outcomes of operations involving safety of human operators. This study discusses the application of geometric tolerance and head injury criteria to safety assessment of human-centered robotic operations. Examples show that extending "Work Area" has more significant effect on the uncertainty in safety than extending the system range in the presence of velocity control.

Development of Safety Management Assessment Model for Construction Clients : (1) Assessment Elements (건설 발주기관의 안전경영 평가 모델 개발 : (1) 평가 항목)

  • Shin, Sung Woo
    • Journal of the Korean Society of Safety
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    • v.32 no.1
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    • pp.82-89
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    • 2017
  • The aim of this study is to develop elements for assessing safety management capability of construction clients. To this end, it is investigated theoretical concepts of the organizational safety management and successful construction management factors of construction clients. From which, the elements appropriate to assess the safety management capability of the construction clients are proposed. Questionnaire survey targeting construction safety management experts have been carried out to adjust the proposed model more eligible for field application. Finally, relative importance of each element is analyzed using analytic hierarchy process method. The developed model elements are expected to use effectively for assessment of the safety management capability of the clients.

Integrated Safety Risk Assessment and Response Preparation on Construction Site Formwork Using FMECA Method (FMECA 기법을 적용한 건설현장 거푸집작업의 통합 안전위험성 평가 및 대응방안 마련)

  • An, Sun-Ju;Song, Sang-Hoon
    • Journal of the Korea Safety Management & Science
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    • v.14 no.3
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    • pp.39-48
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    • 2012
  • Risk Assessment to list possible safety disasters and their probability and severity is the starting point for effective safety management on construction project site. However, the safety managers in owners, construction supervisors, contractors, and sub-contractors still have difficulties in judging the priorities of safety activities and preparing responses to each potential safety disasters. Therefore, this study aimed to suggest a systematic method in assessing safety risk prior to commencement with the agreement of stakeholders. FMECA(failure mode effects and criticality analysis) was selected as a main assessment tool and it was modified according to the characteristics of construction projects and trades. Each risk is, firstly, evaluated with occurrence probability, possible loss and impacts to projects, and detections, and then risk priority number(RPN) is calculated. Subsequently, the managers of each stakeholder discuss the types, timing, and responsibilities of responses as a group decision-making process.

A Study on the Establishment of Bunkering Safety Zone for Hydrogen Propulsion Ships in Coastal Area (연근해 수소추진선박의 벙커링 안전구역 설정에 관한 연구)

  • Sungha Jeon;Sukyoung Jeong;Dong Nam
    • Journal of the Society of Naval Architects of Korea
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    • v.60 no.6
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    • pp.433-440
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    • 2023
  • This study aims to establish safety zones for bunkering operations of hydrogen propulsion ships in coastal areas through risk assessment and evaluate their validity. Using a 350 kW-class ferry operating in Busan Port as the subject of analysis, with quantitative risk assessment based on accident consequence and frequency analysis, along with a social risk assessment considering population density. The results of the risk assessment indicate that all scenarios were within acceptable risk criteria and ALARP region. The most critical accident scenarios involve complete hose rupture during bunkering, resulting in jet flames (Frequency: 2.76E-06, Fatalities: 9.81) and vapor cloud explosions (Frequency: 1.33E-08, Fatalities: 14.24). For the recommended safety zone criteria in the 6% hose cross-sectional area leakage scenario, It could be appropriate criteria considering overall risk level and safety zones criteria for hydrogen vehicle refueling stations. This research contributes to establishing safety zone for bunkering operations of hydrogen propulsion ships through risk assessment and provides valuable technical guidelines.

A Case Study of National Food Safety Control System Assessment in the U.S. (미국의 국가식품안전관리체계 평가 사례연구)

  • Lee, Heejung
    • Journal of Food Hygiene and Safety
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    • v.32 no.3
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    • pp.179-186
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    • 2017
  • For more efficient and proactive safety control of imported food, new trend in U.S. is emerging, which assesses the food safety control systems of exporting countries using Systems Recognition Assessment Tool and helps ensure safety of imported foods. This study examines trends in development and application of assessmemnt tool and country assessment reports in U.S. where an active discussion on this issue is in progress. The expert interviews were also conducted. U.S. Systems Recognition Assessment Tool was developed by FDA to recognize the potential value in leveraging the expertise of foreign food safety systems and help ensure safety of imported food. The tool is comprised of ten standards and provides an objective framework for determining the robustness of trading partners' overall food safety systems. Using its own tool, the U.S. FDA conducted a preliminary assessment of the food safety control systems of New Zealand and Canada. According to the U.S.-New Zealand and the U.S.-Canada assessment reports, the overall structure of the systems was similar between the countries. In summarizing the opinions of experts, such a trend in National Food Safety Control System Assessment may be utilized in the sanitary assessment and the control of imported food border inspection frequency before importing food. It would contribute to more effective distribution of national budget and increased public trust. Additionally, international collaboration as well as securing of qualified experts and sufficient budget appear to be crucial to further increase the utility of National Food Safety Control Systems Assessment. In conclusion, firstly, it is critically important for the competent authority of South Korea to proactively respond to international trend in National Food Safety Control System Assessment by identifying the details of its background, assessment purpose, core assessment elements, and assessment procedures. Secondly, it is necessary to identify and complement the weaknesses of Korea's food safety control system by reviewing it with U.S. Systems Recognition Assessment Tool. Thirdly, by adapting the assessment results from imported countries' food safety control systems to the imported food inspection intensity, the resources previously used in inspecting the imported food from accredited countries can be redistributed to inspecting the imported food from unaccredited countries, and it would contribute to more efficient imported food safety control. Fourthly, the competent authority of South Korea should also consider developing its own assessment tool designed to reflect the unique characteristics of its food safety control system and international guidelines.

Development of Integrated System for Safety Assessment of Damaged Ship (손상선박의 안전성 평가를 위한 통합시스템 개발)

  • Lee, Soon-Sup;Lee, Dong-Kon
    • Korean Journal of Computational Design and Engineering
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    • v.13 no.3
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    • pp.227-234
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    • 2008
  • The number of marine accidents have been decreased since various equipments for navigation control have been introduced to the marine vessels. However, disastrous marine accidents such as ship collisions are occurred more frequently. Therefore, IMO(International Maritime Organization) is enforcing the design requirement of structural strength for marine vessel. Also EU countries are developing new design methodologies and design tools to suggest the design guidance which can minimize the damage of commercial vessels in case of marine collision accidents. In this study, an integrated design system for the safety assessment has been presented to enhance the safety of damaged ships in marine collision accidents. The architecture of system is described by use-cases and IDEF functional analysis. Then an integrated system for safety assessment of damaged ship which is considering both damage stability and structural safety has been developed to support the ship design in early stage.

Performance Assessment Model for Fire Safety Protection of Office Building (사무소 건축물의 화재안전 성능 평가모델)

  • Yang, Eun-Bum;Hwang, Young-Sam;Lee, Chan-Sik
    • Journal of the Korean Society of Safety
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    • v.19 no.2
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    • pp.69-74
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    • 2004
  • This study is to suggest a performance assessment model for fire safety protection of office building 34 asessment elements were chosen by interviewing with experts, reviewing several codes and existing relevant models, assessment elements included in this model are comprised of five categories which are 'performace of protected area', 'performance of fire partition', 'safety performance of fire escape', 'performace of smoke control system' and 'performace of fire fighting equipment'. The weight of each element was computed by systematic approach like an AHP (analytical hierarchy process), which was conducted by experts who work in the field of fire protection. This model would be utilized as a part of assessment model for the overall performace of domestic office building.

A Study on the Effectiveness of the Risk Assessment Regulations for Construction Works (건설공사 유해위험방지계획서제도의 효과분석에 관한 연구)

  • 안홍섭;노민래;이명구
    • Journal of the Korean Society of Safety
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    • v.16 no.4
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    • pp.134-139
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    • 2001
  • The Risk assessment regulation(RAR) is one of the essential articles of the Occupational safety and health law for the construction industry along with safety and health management expense and safety organization regulation. However, arguments regarding the working time of the safety assessment documents, the person in charge of documentation, weakness in legislative enforcement etc. are ongoing. Thus this study aims to analyze the effectiveness of RAR for the guidance of enhancing the effectiveness of RAR. The findings are; 1) the effectiveness of RAR is recognized, however the indirect effectiveness ie, enforcement of safety activities, previewing of drawings etc. are bigger than the direct effectiveness of accident prevention, 2) to enhance the effectiveness of RAR site inspection procedure has to be utilized, 3) further research for identifying and getting rid of negative factors in RAR is recommended.

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