• 한국수소및신에너지학회논문집
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• 제33권3호
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• pp.232-239
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• 2022

This study performed qualitative and quantitative risk assessment of equipment for evaluating the protocol of hydrogen refueling stations and suggested measures to improve safety. Hazard and operability study was performed for qualitative risk assessment, and Hy-KoRAM was used for quantitative risk assessment. Through a qualitative risk assessment, additional ventilation devices were installed, simultaneous venting of the storage container was prohibited, and the number of repeated refilling of the evaluation equipment was identified to manage the number of fillings of the container. Through quantitative risk assessment, the area around the device was set as a restricted area when evaluating the station, and measures were suggested to reduce the frequency of accidents.

• 과학기술학연구
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• 제7권1호
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• pp.33-66
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• 2007

탈(脫)추격 단계에서는 높은 불확실성을 가진 기술혁신 활동이 증가함에 따라 기술 위험의 발생 가능성도 높아지게 된다. 따라서 정책적 차원에서 위험을 수용하고 관리하는 것이 더욱 중요한 이슈로 등장하고 있다. 본 연구는 기술위험을 정치사회적 시각에서 재정리하고 새로운 기술과 정책이 겪는 시행착오와 실패가능성이 더욱 높아지는 탈(脫)추격 단계의 기술위험의 특성을 파악한다. 특히 우리나라는 추격단계에서 형성되어온 과거의 유산이 여전히 지배하고 있다는 점에서 기술 위험에 대한 새로운 접근과 정책적 대응이 필요한 시점이다. 이에 따라 위험관리체계의 재정립과 위험커뮤니케이션의 강화, 기술 유형별 위험 관리, 예방적 접근과 한정된 범위의 시행착오 전략의 활용, 지식축적과 학습의 강화가 필요하다.

• 대한화학회지
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• 제67권1호
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• pp.19-27
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• 2023

동물실험에 의존하는 전통적인 위해성평가 방법의 한계가 명확하게 드러나면서, 동물실험이 아닌 최첨단 기술을 활용한 화학물질 위해성평가 방법론들이 연구되고 있다. 이는 곧 신규접근법(New Approach Methodologies, NAMs)이라는 개념으로 구체화되었으며 차세대 위해성평가(Next generation risk assessment, NGRA) 프레임워크로 구현되었다. 하지만 신규접근법 데이터는 신뢰도 문제로 인해 극히 제한적으로 화학물질의 규제 의사결정과정에 활용되고있다. 이에 규제 공동협력기관 APCRA 이니셔티브는 화학물질 위해성평가에 신규접근법 데이터의 활용을 증진시키기 위해 여러 사례연구를 수행하였으며, 이를 바탕으로 차세대 위해성평가의 전망에 대해 논의한 바 있다. 따라서 본 총설에는 APCRA 이니셔티브가 수행한 사례연구 두 편을 중심으로 신규접근법을 활용한 차세대 위해성평가의 개념과 전망을 제시하였다.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제16권1호
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• pp.121-131
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• 2009

In this paper we examine the relation among law-invariant coherent risk measures with the Fatou property, distortion risk measures and spectral risk measures, and give a new proof of the relation among them. It is also shown that the spectral risk measure satisfies the monotonicity with respect to stochastic dominance and the comonotonic additivity.

• 한국건설관리학회논문집
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• 제16권2호
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• pp.38-45
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• 2015

건설위험관리 프로세스의 위험분석단계는 정성적 및 정량적 위험분석단계로 세분화되는데, 정성적 위험분석이 주된 역할을 하고 정량적 위험분석은 보조적인 역할을 담당한다. 그런데 이제까지 정성적 위험분석단계에서 위험도를 계량화하는 방법으로 적용되어온 위험도 산정 공식은 발생확률과 영향을 단순히 곱하는 식으로서 결과 값들은 저위험도에 편중된 분포를 나타낸다. 이에 대한 대안으로 고위험도에 편중되는 산정 공식이 제안되었으나, 위험도 분포가 저위험도 또는 고위험도에 편중하게 될 경우 대부분의 자연현상이 정상분포에 가깝다는 통계학적인 일반논리에 부합되지 않는다. 본 연구에서는 위험도의 분포가 중앙에 집중되는 새로운 위험도 산정방법을 제안하고자 한다. 이를 통해 위험도 분포가 자연현상의 정상분포와 유사한 형식으로 표현됨으로써 위험에 대응하는 수준이 고위험도 또는 저위험도에 치우지지 않고 중간위험도에서 합리적으로 선택될 수 있게 하고자 한다. 나아가 위험도 산정방법에 대한 추가적인 선택사항을 제공함으로써 위험분석 방법의 융통성과 합리성을 향상시키는데도 일조하고자 한다.

• 한국수소및신에너지학회논문집
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• 제28권6호
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• pp.635-641
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• 2017

In this study, the components of packaged hydrogen filling station were analyzed and risk factors were examined. Risk scenarios were constructed and quantitative risk assessments were conducted through a general risk assessment program (phast/safeti 7.2). Through the risk assessment, the range of damage according to accident scenarios and the ranking that affects the damage according to the risk factors are listed, and scope of damage and countermeasures for risk reduction are provided. The quantitative risk assessment result of the packaged hydrogen filling station through this task will be used as the basic data for improving the safety of the packaged filling system and preparing safety standards.

• 한국산업융합학회 논문집
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• 제26권5호
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• pp.845-853
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• 2023

The Ministry of Employment and Labor announced a roadmap for reducing serious accidents to create a "safe and healthy workplace, happy Korea" and ordered a risk assessment for all work processes in all workplaces on November 30, 2022. Accordingly, even workplaces that handle new chemicals must conduct risk assessment when introducing new chemicals, but the risk assessment techniques currently proposed by the government focus on preventing conventional accidents such as falls, getting caught, and bumping. Currently, there is a Chemical Hazard Risk Management (CHARM) technique that is most commonly used for chemical risk assessment, but in small and medium-sized businesses that lack professional manpower related to chemical substances, there are many technical terms in the technique and it is difficult to interpret, so its utilization is very low. Therefore, the purpose of this study is to present a method that can make risk assessment easier and simpler before handling new chemicals so that it can be used well in small and medium-sized businesses that lack professional manpower related to chemical substances. Through actual cases, the method of using CHARM was confirmed step by step, and based on this, risk reduction establishment and execution methods were derived. Based on the results of this study, it is expected that it will be used as the best tool for preventing accidents such as acute poisoning when handling chemicals in small and medium-sized workplaces that lack professional manpower related to chemical substances and make every effort to protect workers' health.

• 성인간호학회지
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• 제16권2호
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• pp.183-190
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• 2004

Purpose: The purpose of this study was To exam the skin and pressure sore and To evaluate the predictive validity for the new pressure sores risk assessment scale. Method: There was finally 211 neurosurgery subject admitted in Chung-Ang Univ. Hospital from Nov, 11, 2002 to Feb, 11, 2003. Data was collected three times per week from 48-72hr after admission until incidence of pressure sores or discharge or die. Inclusion criteria were; (1) no pressure sores at admittance, (2) at least 3 times assessment, (3) adults older than 16yrs, (4) patients consent to participate in study. Result: 1. 34 case of 211 developed pressure sores(11.6%). 2. The coccyx area was the most common occurrence site of pressure sores. 3. At the cutoff point 23 of sensitivity 100%, specificity 76.3% was higher in 2003 than specificity 63.8% at the cutoff point 26 of sencitivity 100% in 1991. 4. "Moisture" of subscale for pressure sores risk factor was the strongest predictor. Conclusion: This study shows that the New Pressure Sores Risk Assessment Scale still predict the risk of developing pressure sores in neurosurgical subject.

• Journal of Korean Biological Nursing Science
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• 제21권4호
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• pp.300-307
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• 2019

Purpose: The purpose of this study was to provide basic data on the infection prevention management program, which is one of the infectious disease control program by identifying the prevalence and risk factors of latent tuberculosis infection (LTBI) in healthcare workers. Methods: We surveyed a total of 3,046 LTBI test results, including those of 2,269 existing staff and 777 new employees. An interferon-gamma release assay (IGRA) for the diagnosis of LTBI was performed using QuantiFERON^®-TB Gold In-Tube (QFT-IT). The risk factors of LTBI were analyzed using logistic regression analysis. Results: The overall prevalence of LTBI was 16.0% (487/3,046). The prevalence of LTBI in the existing staff was 17.9% (406/2,269) and the prevalence of LTBI in new employees was 10.4% (81/777). Multivariate logistic regression analysis revealed that the risk factors of latent tuberculosis infection among the existing staff were gender, age and work period wheres, the risk factor amongst the new employees depended on their age. Conclusion: The LTBI was not related to the type of occupation and work unit. Therefore, while establishing an infection control program for the prevention of tuberculosis infection at medical institurions, institutional heads and infection control experts should encompass a policy for all the employees.

• 로봇학회논문지
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• 제14권4호
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• pp.333-339
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• 2019

Cobots are industrial robots with greatly enhanced safety functions that enable them to work in the same space with workers without protector. Cobots are regulated by the Industrial Safety and Health Act and must be certified according to the manufacturing stage, installation stage and usage stage. The ISO 10218-2 standard applied in the installation phase is difficult to apply in the field. Therefore, it is necessary to develop a risk assessment method based on ISO 12100 standard. This paper proposes a new methodology that combines 'JSA' and 'What-if', which reflects the human error and the lack of known risk factors. Accordingly, a new risk assessment template was proposed and the effectiveness of the developed new template was examined. The current cobot safety regulations need to be unified with safety inspections scheme, and robot safety experts and infrastructures need to be expanded and Robot safety regulations should be unified to 'Robot Act'. Based on this research, risk assessment methods suitable for the field need to be developed additionally, and robot safety regulation needs to be transformed to promote the industry.