• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.12
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• pp.110-117
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• 2018

Recently, as weapon systems have become more complex and multi-functional, the difficulty of the operation and maintenance of weapon systems in the military have become increasingly difficult. On the other hand, the service period of operations and maintenance workers who perform operations and maintenance has been shortened, and the skill of system operation and maintenance has been lowered. This complexity and multi-functionality of equipment cause malfunctions and errors of users and maintenance personnel, and degradation of the reliability affects availability and combat readiness. In addition, life cycle costs have been gradually increasing. Therefore, I would like to suggest an improvement plan of the design of weapon systems and ILS (Integrated Logistics Support) in order to examine the implications of failure in the military. The weapon system is operated in the ROK Navy. Data from 730 cases of failure of weapon systems was collected, and analyzed. The results of the analysis are classified into failures that can be prevented in advance and failures that cannot be prevented. This shows the portion of preventable failures in weapon systems and proposes measures to minimize failures.

• Transactions of the Korean Society of Pressure Vessels and Piping
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• v.10 no.1
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• pp.37-43
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• 2014

Nuclear power plants(NPPs) are consisted of power production functions and safety functions preventing leakage of radiation. Operators working in NPPs shall maintain these functions during an operation period through various activities such as improvement & modification, corrective maintenance, preventive maintenance and surveillance test. According to the performance of these work activities, there are configuration changes in NPPs systems. Its changes cause the increase of safety risks(CDF) and plant trip risks. Recently, the importance of risk management is increasing gradually in the operation process of NPPs. Therefore, this paper presents the work management methods using the various risk monitoring systems during power operation and overhaul period. Also this paper suggests the optimum application ways of risk systems for work management.

• The tire
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• s.85
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• pp.17-20
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• 1979

「9ㆍ10월 교통사고예방의 달」을 맞이하여 본협회에서는 9월 25,26일 양일간 치안본부와 한국도로 공사의 후원을 얻어 경부고속도로상 (하행선 79km지점, 망향휴게소)에서, 타이어 정비불량으로 인한 교통사고를 미연에 방지하고 동시에 고속도로를 운행하는 운전기사들에게 타이어 안전사용관리에 대하여 올바른 인식과 이해를 시키고자 타이어 무료점검을 실시하였다. 이번 타이어 점검에는 본협회, 회원사, 치안본부, 한국도로공사 등 직원 20여명과 Service Car 3대가 동원되어 타이어의 마모한계, 편마모, 이상마모, 공기압, 외상 등을 비롯하여 못ㆍ쇠붙이ㆍ유리조각 등일 찔려있는지의 여부를 정확히 검사ㆍ점검하며 결과는 점검 카드에 기재하여 운전기사들에게 알려주며 정비를 필요로 하는 타이어는 정비직원이 즉시 정비해주었다.

• Journal of KIISE:Computing Practices and Letters
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• v.10 no.5
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• pp.385-393
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• 2004

Cluster systems have been widely used for solving problems in various application domains, and regarded as useful high performance computing resources. As the number of cluster system user is increasing, it is no less important to maintain stable operation than to improve cluster system performance. Although hardware preventive maintenance is important for keeping normal operation, the testing tool which can be used for general cluster systems during maintenance has received little attention. In this Paper, considering hardware Preventive maintenance, we suggest a testing tool for hardware of cluster system. The cluster system testing tool which is named CTS(Cluster system Test Suite) has two check routines; one for memory, and the other for NIC respectively. The CTS is designed to support the common features of general cluster systems and all the Jobs such as setting test conditions to querying the results can be done entirely within an integrated GUI environment. CTS is used as the testing tool for two kinds of cluster systems during maintenance, and the experimental results show that CTS reports useful information for cluster systems management.

• Journal of the Korean Institute of Gas
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• v.17 no.4
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• pp.39-44
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• 2013

There have been large explosions at some chemical plants recently. Accidents in chemical plants have been caused mainly by servicing for maintenance. There is a need to find a key target for effective injury prevention in maintenance. In this paper, facilities were selected as a key target and the risk priority numbers of the facilities were calculated in order to prioritize preventative measures. The research method was based on the followings; the list of the facilities is found through injury analysis. Then, the risk of each facility was calculated by the frequency of accidents and the working day loss through injuries. In addition, the risk of the facilities was calculated again by the frequency and the severity based on knowledge and experience of experts. As a result, the facilities in chemical plant maintenance are ranked in order of high to low risk priority number; reactor, dryer, tank lorry, etc. In the future, special measures and attention should be directed according to the risk priority number during the maintenance of chemical plants.

• RED RIBBON
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• s.75
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• pp.8-9
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• 2007

2006년 감염인 지원센터 운영사업 등 다각적인 사업을 펼친 대한에이즈예방협회의 미래를 이끌고 나갈 사무총장이 새로 취임했다. 엄총장에게 취임소감과 대한에이즈예방협회의 2007년 사업방향과 미래비젼에 대해 들어봤다. 엄총장은 본.지회 조직망을 정비하고 활성화시켜 사업기반을 구축하고, 투명한 행정절차와 예산집행으로 감염인과의 신뢰 회복을 위해 노력하겠다고 전했다.

• Nuclear industry
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• v.16 no.5 s.159
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• pp.30-41
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• 1996

고리 4호기가 지난 4월 5일 국내 최장인 423일간(95. 2. 8$\~$96. 4. 5)의 한 주기 무정지 안전 운전을 달성하고 계획 예방 정비를 위해 정지했다. 이러한 쾌거는 지속적인 설비 환경 개선과 철저한 계획 예방 정비를 통해 기계고장률을 제로화하고, 각종 훈련을 통해 운전원들의 운전 능력과 비상 대응 능력을 향상시킨 결과라 할 수 있다. 국내 최장 OCTF 달성의 성과 의의와 과정을 들어본다.

• Proceedings of KOSOMES biannual meeting
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• 2017.04a
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• pp.93-93
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• 2017

• The Safety technology
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• no.122
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• pp.18-19
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• 2008

'1974년에 창립한 삼창기업 주식회사는 고리원자력발전소가 정상 운전 중 발생할 수 있는 결함처리, 일상 예방정비 및 계획 예방정비 업무를 수행하면서 무재해 10배라는 경이로운 기록을 달성하였다. 이는 부산지역 내에서 다섯 손가락 안에 들어가는 대기록으로 지역 안전문화 정착에 기폭제로 충분하다. 특히 삼창기업(주) 산업재해의 온상이라는 100인 미만의 소규모 사업장이라는 점에서 이들의 무재해 기록은 의미가 크다 할 수 있다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.9
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• pp.5502-5512
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• 2014

Until recently, Integrated Logistics Support (ILS) focused mainly on the development and acquisition of supportability factors (maintenance planning, maintenance tools, support equipment, supply support, maintenance training, etc.). In the long term, supportability strategies and policies are needed in terms of LEAN-like cost reduction, efficiency in the field of weapon systems. This study first introduces the concept of Lean, theory of Lean Maintenance and suggests Lean maintenance framework, maintenance strategy for ILS. The case studies were analyzed in terms of the maintenance time, maintenance man-hours, maintenance cost for Lean PM in a radar system. The direction of LEAN on supportability in a weapon system is suggested.