• 대한안전경영과학회지
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• 제16권3호
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• pp.273-277
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• 2014

Subcontracting business than the contracting business in shipbuilding industry is a lot of hazardous job and highly accident because of highly work intensity. In order to prevent the accidents, there is a need to analyze characteristic. of shipbuilding, to apply measures of risk assessment. In this paper, I suggested an improvement of the risk assessment through the actual condition research in shipbuilding industry. In the research method, I analysed accidents occurred until 2011-2013. Carried out the actual site survey while two weeks in May 2014. As a result, 1) The main pattern were caught-in or between, fall on the high level according to analyzed accidents. 2) To apply the weight show clear of magnitude for risk assessment. 3) Risk estimation of risk assessment is desirable to be quantization by accidents analysis, and to be greater than or equal to 4 steps.

• 대한안전경영과학회지
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• 제19권4호
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• pp.133-140
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• 2017

The Ministry of Science, ICT and Future Planning made law for Pre-Hazard Risk Analysis in December 31, 2014 to protect researchers from continuing accidents in laboratory. Conducted before an experiment, Pre-Hazard Risk Analysis finds hazards of the experiment and rules to manage the hazards.So the Pre-Hazard Risk Analysis can support laboratory safety system by prevent accidents in laboratory. Pre-Hazards Risk Analysis is newly created system so that executors need Guidelines to perform this analysis properly. This study is to develop guide tool for Pre-Hazard Risk Analysis by analyzing other risk assessment systems; PSM, Off-site Consequence Assessment, laboratory safety system. Also, this study suggested how to establish database for Pre-Hazard Risk Assessment by analyse KRAS.

• 한국지하수토양환경학회지:지하수토양환경
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• 제16권4호
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• pp.23-30
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• 2011

Risk based pollution level of Pb and Cd in metal contaminated soils depending on physicochemical properties of soil in a target site was assessed using biotic ligand model. Heavy metal activity in soil solution defined as exposure activity (EA) was assumed to be toxic to Vibrio fischeri and soil organisms. Predicted effective activity (PEA) determined by biotic ligand model was compared to EA value to calculate risk quotient. Field contaminated soils (n = 10) were collected from a formes area and their risk based pollution levels were assessed in the present study using the calculated risk quotient. Concentrations of Pb determined by aqua regia were 295, 258, and 268 mg/kg in B, H and J points and concentrations of Cd were 4.73 and 6.36 mg/kg in G and I points, respectively. These points exceeded the current soil conservation standards. However, risk based pollution levels of the ten points were not able to be calculated because concentrations of Pb and Cd in soil solution were smaller than detection limits or one (i.e., non toxic). It was because heavy metal activity in soil solution was dominant toxicological form to organisms, not a total heavy metal concentration in soil. In addition, heavy metal toxicity was decreased by competition effect of major cations and formation of complex with dissolved organic carbon in soil solution. Therefore, it is essential to consider site-specific factors affecting bioavailability and toxicity for estimating reliable risk of Pb and Cd.

• Environmental Analysis Health and Toxicology
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• 제25권2호
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• pp.169-177
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• 2010

Ecological risk assessment (ERA) has been used to establish environmental quality standards or evaluate ecological risk in site-specific areas. The scope of ERA was expanded based on regions, and the concept of regional-scale ecological risk assessment was recently introduced in developed countries. In the present study, regional ERA approaches of relative risk model (RRM), contaminants in aquatic and terrestrial ecosystems (CATS) model, and procedure for ecological tired assessment of risks (PETAR) in advanced countries were extensively investigated. Regional ERA was compared with traditional ERA process. Stressors, receptor and response in traditional ERA were replaced with sources of stressors, habitats, and ecological impacts, respectively in regional ERA. This study introduces the concept and assessment process of regional ERA, and provides a wide perspective how the relative ERA could be applied in Korean ecosystem.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.335-336
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• 2023

The military has adopted and implemented risk assessment since 2013 to reduce fatalities and accident rates at construction sites. However, risk assessment is carried out as a voluntary preventive activity and is maintained as a superficial administrative process for owners. Risk assessment must comply with the Occupational Safety and Health Act and the Enforcement Guideline of Risk Assessment. However, the scope of the assessment covers many industries, including manufacturing and distribution, making it difficult to apply to construction sites. As a result, the guidelines are interpreted and applied differently at each construction site. This study aims to improve the risk assessment system so that it is applicable to construction projects and proposes the improvement of the risk assessment system by analyzing the current status of serious accidents in military construction projects.

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2008년도 춘계학술대회
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• pp.493-517
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• 2008

The purpose of this research is to identify effect of communication strategy as effectively communication method which is decreasing Internet Web site users' perceived information privacy concerns as important factor affecting to positive behavior or behavioral intentions on long-term relational outcome perspectives. This study suggests alternatives concepts and causal relationship about information privacy issues. First, it addressed collaborative communication strategy (CCS) model of effective communication method for Web site's IPP to users. Second, it provided comparing and integrating streams of information privacy research on long-term relational outcomes perspective. Third, it assessed effectiveness of Web site's IPP on organization legitimacy ensured continuous survival of organization. A research model was proposed and subsequent hypotheses were empirically tested with partial least square (PLS) based on 684 responses from the users of 21 Internet Website among entirely finance, recruit, portal /e-store Web site. It was learned that CCS(as a communication method) and relationship quality(representing long-term relational outcomes)was positively associated with decreasing user's IPC more than privacy risk. Also, legitimacy to information privacy practice positively associated with willingness to information providing more than negative effect of IPC. Lastly, their association strength was partially moderated by the type of real information sensitivity.

• 통상정보연구
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• 제18권1호
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• pp.3-27
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• 2016

본 연구는 소비자 특성과 웹사이트 특성이 해외직구사이트의 만족도와 재구매 의도에 미치는 영향을 실증적으로 살펴보고자 한다. 2015년 10월 해외직구를 이용하는 이용자 230명을 대상으로 설문조사를 실시하여 다중회귀분석으로 검증하였다. 인터넷 쇼핑몰과 관련된 선행연구를 분석하여 소비자 특성을 혁신성, 지각된 위험, 이익인지, 구매성향으로, 웹사이트 특성을 제품구색, 편의성, 신뢰성, 고객 서비스로 도출하였다. 연구결과, 소비자 특성에서 지각된 위험과 이익인지가 만족도에 유의한 영향을 주는 것으로 나타났고, 웹사이트 특성에서는 제품구색, 신뢰성, 고객 서비스가 만족도에 유의한 영향을 주는 것으로 밝혀졌다. 시사점으로 해외직구는 소비자의 불안감을 해소하는 방법으로 다양한 언어를 지원하며 소비자의 의견을 적극적으로 수렴하고 처리해야 할 것이며, 제품과 관련된 반품 및 환불을 신속하게 처리될 수 있도록 시스템을 구축해야 할 것이다.

• 자원환경지질
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• 제50권5호
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• pp.363-373
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• 2017

본 연구에서는 이산화탄소 지중저장 부지관리를 위한 가상물리시스템(Cyber Physical System, CPS)의 적용성을 검토하였다. 특히, 이산화탄소 누출 예측을 위한 가상트윈으로써 서배깅 회귀분석 기법을 활용하였고, 실제 모니터링 자료를 이용하여 해당기법의 성능을 검증하였다. 검증 결과, 서배깅 회귀분석 기법이 자료 내 이상치에 대하여 견고한 추세 예측성능을 보여주었으며 장기 농도변화 예측성능 또한 우수함을 확인하였다. 또한 적은 연산자원을 활용하여 즉시적인 예측결과를 도출함에 따라 이산화탄소 누출 실시간 예측 및 위험 경보에도 적합함을 알 수 있었다. 이러한 결과들은 서배깅 회귀분석 기법을 가상트윈으로 활용하는 CPS가 이산화탄소 누출 위험을 효율적으로 관리하는데 활용 될 수 있음을 보여준다.

• 한국지하수토양환경학회지:지하수토양환경
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• 제25권3호
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• pp.65-73
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• 2020

Exposure assessment methodology for outdoor air inhalation pathways (i.e., inhalation of volatile compounds and fugitive dust in outdoor air) was investigated. Default values of several parameters currently used in Korea (e.g., Q/C; inverse value of concentration per unit flux, and frs; soil fraction in PM10) may not be suitable and lack site-specificity, as they have been adopted from the risk assessment guidance of the United States or the Netherlands. Such limitation can be addressed to a certain degree by incorporating the volatilization factor (VF) and the particulate emission factor (PEF) with Box model. This approach was applied to an exposure assessment of a site contaminated with petroleum hydrocarbons in Korea. The result indicated that the suggested methodology led to more accurate site-specific exposure assessment for outdoor inhalation pathways. Further work to establish methodology to determine site-specific Q/C values in Korea needs to be done to secure the reliability of the exposure assessment for outdoor air inhalation pathways.

• 한국건설안전학회 논문집
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• 제1권1호
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• pp.16-21
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• 2018

본 연구의 목적은 국토교통부로부터 위탁받아 한국시설안전공단에서 운영하고 있는 건설사고조사위원회 사무국에서 '15년부터 축적한 총 90건의 건설현장사고를 대상으로 공종별 위험요소 및 재발방지대책을 key word 행태로 발굴하여 유사한 원인으로 재발되는 건설현장사고를 방지하는 자료로 활용하고자 수행하였다. 본 연구에 활용한 건설사고 모집단은 건설사고 전체를 대표하기는 어려우나 일정 규모 이상의 건설사고에 대한 분석 자료로 통계적 가치가 있는 것으로 사료되며, 향후 보다 신뢰성있는 분석을 통한 피드백을 위해서는 효과적으로 건설사고정보를 수집할 수 있는 제도개선이 필요한 것으로 판단된다. 금번 분석된 내용은 현장에서 건설안전 확보를 위한 기초자료로 활용이 가능할 것으로 생각되며, 향후 건설안전정책 방향설정의 자료로도 활용될 수 있을 것으로 기대한다.