• 한국가스학회지
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• 제19권6호
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• pp.85-91
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• 2015

전 세계적으로 수소에너지에 대한 관심이 점차 증가함에 따라 수소 생산, 저장, 운송, 이용 분야에서 응용 기술의 개발이 활발히 진행되고 있다. 국내에서도 울산 수소타운을 조성하여 시범운영 중에 있어 수소에너지 응용처 확대에 대한 가능성을 높이고 있다. 울산 수소타운은 가스 사용 압력에 따라 고압부와 저압부로 구분할 수 있는데 고압부는 '고압가스안전관리법'을 적용하여 안전관리를 하고 있고 저압부는 '수소타운 시범사업의 안전관리에 관한 지침'을 적용하여 운영 중에 있다. 본 논문에서는 울산 수소타운 내 0.1MPa 이하 저압 수소 사용시설의 안전관리 효율성 향상을 위해 저압 수소사용 시설 및 안전관리 항목 분석을 통해 안전관리 방향성을 검토하고 향후 개선 방향을 제시하고자 하였다. 본 연구의 결과를 통해 국내 수소타운 활성화 및 안전 관리 효율성 증대에 도움이 될 수 있을 것으로 기대한다.

• 대한안전경영과학회지
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• 제1권1호
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• pp.241-258
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• 1999

For hazardous air pollutants(HAP) such as NO and $NO_{2}$ decomposition efficiency, power consumption, and applied voltage were investigated by SPCP(surface induced discharge plasma chemical processing) reactor to obtain optimum process variables and maximum decomposition efficiencies. Decomposition efficiency of HAP with various electric frequencies(5~50 kHz), flow rates(100~1,000 mL/min), initial concentrations(100~1,000 ppm), electrode materials(W, Cu, Al), electrode thickness(1, 2, 3 mm) and number of electrode windings(7, 9, 11) were measured. Experimental results showed that for the frequency of 10 kHz, the highest decomposition efficiency of 94.3 % for NO and 84.7 % for $NO_{2}$ were observed at the power consumptions of 19.8 and 20W respectively and that decomposition efficiency decreased with increasing frequency above 20 kHz. Decomposition efficiency was increased with increasing residence times and with decreasing initial concentration of pollutants. Decomposition efficiency was increased with increasing thickness of discharge electrode and the highest decomposition efficiency was obtained for the electrode diameter of 3 mm in this experiment. As the electrode material, decomposition efficiency was in order : tungsten(W), copper(Cu), aluminum(Al).

• 대한안전경영과학회지
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• 제20권1호
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• pp.11-21
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• 2018

Safety accidents, which are called industrial accidents in construction work, are often caused by unstable physical and personal conditions combined during preparation and execution of work. It is difficult to manage all the construction works, but especially in the field of apartment construction work, complex and many kinds of works are being carried out at the same time. In the current construction, safety regulations such as safety management guidelines are generally well maintained, but the execution of manpower resources that can fulfill them is limited, and it is difficult to reduce the accident rate and loss cost. Therefore, in this study, it is a reality that most of the types of construction work are under contruction by subcontracting contract, so they are limit by methods of manual maintenance and safety education. Currently, the subcontractor is also allowed to perform safety management through the composition of the safety management review body, but it is operated formally. So alternatives to this were studied. As a result, safety accidents occur in the subcontractor's worker due to vertical integration, which is characteristic of the construction industry, together to the contractor, the safety management system is based on a safety construction system in which a worker who has a certain qualification condition such as career experience of the work type, work understanding of the work type, and management experience of the work type among the subcontractor, when we manage based on mutual personality which is the personality of interpersonal relationship that can communicate with each other by work type, process and grouping, it is concluded that effective and practical safety management can be achieved to reduce the accident rate and loss cost.

• 대한안전경영과학회지
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• 제18권4호
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• pp.47-55
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• 2016

Recently, industrial accidents rate has been gradually decreasing due to the development of safety management methods, but until now, the accident rate in the construction sector is higher than other industries. Large-scale construction sites are operating systematic safety systems to reduce industrial accidents. However, small and medium sized construction sites do not have systematic safety system and lack safety management ability, so that disaster is not reduced compared with large scale construction site. As a result, disaster prevention technology instruction system has been implemented to reduce the disasters of small and medium scale construction sites. However, in the case of a small construction site less than 2 billion won, there is little decrease in the accident rate, and in some cases, the accident rate increases. After the technical guidance system has been implemented, it is necessary to identify the performance and problems of implementation and to improve its effectiveness. In this study, we suggest the improvement plan to improve the efficiency of the technical guidance system by analyzing the problems and actual conditions of technical guidance operation in small and medium sized construction work sites.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2003년도 춘계학술대회
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• pp.291-297
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• 2003

In fact, some cases that successfully introduced CRM show that CRM is migrating from small scale which is typical when introduced to larger scale through various tests. The process also comprises all strategic planning, capital investments, management decisions, and tasks necessary to create a new product. manufacturing processes must be created so that the product can be produced in the product facility Therefore, this study tries to segment customer for the sieving the problem. And it make efficient customer management.

• 대한안전경영과학회지
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• 제19권1호
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• pp.219-226
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• 2017

This study investigates application cases of facility management system model for enhancing facility productivity of industry filed around medium and small facility processing companies and finds the inefficiency of the existing management model. Following items are researched to seek out methods and measures to maximize facility productivity through empirical analysis by exploring and establishing a new management model. First, the empirical analysis, it is found that the overall equipment efficiency index used for facility productivity management in the companies has a difficulty being used as the index for it in actual medium-small processing companies. Second, a new facility management system model applying standard cycle time is suggested among facility management index system to measure facility productivity. Third, the empirical analysis is used to verify that developed facility management system model is a useful method to manage the facility productivity by applying the model to actual medium-small processing companies. Finally, it is necessary to implement comparison analysis on whether actual productivity enhancement induces a distinctly different result by using a new facility management index system model to be inhibited in this study.

• International Journal of Safety
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• 제1권1호
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• pp.52-57
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• 2002

The Decomposition of NO$_2$ (nitrogen dioxide), one of the Hazardous Air Pollutant (HAP), was studied by utilizing the SPCP (Surface induced discharge Plasma Chemical Processing) reactor so as to obtain optimum process variables and maximum decomposition efficiencies. Experimental results showed that for the frequency of 10kHz, the highest deco position efficiency of 84.7% for NO$_2$ was observed at the power consumptions of 20W. The decomposition efficiency of $NO_2$ was found to be: 1) proportional to the residence times, and inversely proportional to the initial concentrations of $NO_2$; 2) the maximum when the electrode diameter was 3mm; 3) influenced by the electrode material, decreasing in the order of W>Cu>Al; and 4) proportional to the $CH_4$ content, due to which the highest efficiency of 98% was obtained with almost all the $NO_2$ removed.

• 한국방재학회:학술대회논문집
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• 한국방재학회 2007년도 정기총회 및 학술발표대회
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• pp.246-249
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• 2007

This paper discusses the standards for disaster prevention and safety management of rail tunnel. The purpose is to establish safety management standards and methods of disaster prevention for each underground traffic spaces, after the full revision of the cause of accidents and its effects, the function and selection of safety equipment, and the efficiency and convenience of maintenance, standards based on prevention and reduction is proposed to reaction to disaster.

• 한국항행학회논문지
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• 제28권2호
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• pp.185-192
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• 2024

항공산업은 기술적인 혁신을 통해 안전성을 향상했으며, 항공 당국의 안전 규제와 감독을 통해 비행안전을 강화해 왔다. 항공산업의 안전 접근 방식이 항공기 시스템 전체에 대한 체계적인 접근 방식으로 발전함으로써 항공사는 새로운 안전 관리시스템을 구축하게 되었다. 항공기의 기술적 결함이나 비정상적인 데이터는 사고로 이어질 수 있는 전조 징후가 될 수 있으며, 이러한 징후를 조기에 식별하고 대처함으로써 사고 발생의 위험을 감소시킬 수 있다. 따라서 비정상적인 전조 징후의 관리는 데이터 기반 의사결정을 촉진하고, 항공사의 운영 효율성 및 안전수준을 강화하는 데 있어 필수적인 요소이다. 본 연구에서는 항공기 착륙 시에 활주로 이탈로 이어질 수 있는 크랩랜딩 이벤트의 패턴과 원인 분석을 위한 사전적 분석 단계에서 QAR (quick access recorder) 비행 데이터 통계 분석 모델을 제시하여 착륙 이벤트의 전조 징후와 원인을 식별 및 제거하는 안전관리의 효율성을 제고하고자 한다.

• 산업경영시스템학회지
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• 제33권4호
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• pp.187-192
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• 2010

Korean railway has run about 110 years since 1989 and played a great role of industrialization in Korea. It is known that rail transport systems have many advantages of being more safe, energy-efficient, and environment-friendly, as compared to other transportation systems. However, railway incidents are often attributed to the failure of safety management and critical to the efficiency of railroad industry. This study reviewed economic, financial, and general statistical information on Korea Railroad. Based on the statistical data, the effect of accidents on railroad management was analyzed. Correlation analysis revealed that railway accident had a negative effect on the gross profit of Korea Railroad. In order to reduce potential risks and incident rate, some recommendations are proposed. Actual or potential applications of this research include safety guidelines for improving efficiency of railroad industry.