• 한국철도학회논문집
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• 제19권1호
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• pp.29-37
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• 2016

국내 철도안전법의 형식승인 제도는 2014년도에 시행되어 현재 차량분야부터 순차적으로 기술기준이 고시되고 있다. 형식승인 제도의 인증 대상품은 철도차량과 철도용품으로 구분되며, 형식승인 제도에서는 기존 인증제도와는 다르게 설계적합성 검증, 설계합치성 검증, 형식시험 검사의 순서로 설계에 대한 입증이 요구되고 있으며, 이는 TSI 인증 등 전세계의 인증 제도와 부합화된 내용이다. 본 연구에서는 유럽 표준형 자동복합연결기 시스템을 구성하는 하부시스템 중 연결기 헤드에 대하여 국내 철도안전법 형식승인 제도와 TSI 기준의 요구사항을 도출하고 그 중에서 설계적합성 검증 항목을 분류하였다. 분류된 34개의 설계적합성 검증항목 중 32개는 도면 및 기술검토서를 통해 검증하였으며, 분석이 필요한 2개의 항목에 대하여 연결범위 분석 및 강도해석을 수행함으로써 유럽 표준형 자동복합연결기 헤드가 국내외 기술기준 및 규격의 요구사항에 적합하게 설계되었음을 확인하였다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2011년도 춘계학술대회 초록집
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• pp.99-99
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• 2011

Fuel cell systems are a completely different form of electricity source that has been used so far and is an aggregation of multiple technologies with multidisciplinary features that can be operated safely only when gas and electrical safety are being considered. Since fuel cells generate through electrochemical reactions there are difficulties in ensuring electricity safety, power quality assessment, effective control and reliability standards for system faults using conventional inspection techniques and even though they are necessary as a primary means for reduction of CO2 owing to the Climate Convention, electrical safety assessment and measures are required for the prevention of faults in residential facilities. Although small-scaled distributed power supplies can be utilized as important means of peak control and energy management measures, research is required for observing the effects on the system and the development of inspection technology to ensure stable operation, and the electrical safety of residential fuel cell systems need to be assessed and the problems derived for establishing electrical safety standards. From the year 2002, Japan has established laws on technical safety standards and development and rules on the product specifications and standards for the industrialization of hydrogen fuel cells. Also, a lot of effort have been made for the commercialization of fuel cells by building one-stop certification services. Internationally, the IEC TC 105 has established international standards based on fuel cells. In order to protect the national interest, the country should be able to respond accordingly meet global standards. In fact, in Korea, to comply with the international trend, Korea Energy Management Corporation is establishing a certified agenda for fuel cells and Korean Agency for Technology and Standards is enacting technical standards for fuel cells. The current terms of fuel cells are that research has been focused more on the quality and performance of manufactured products rather than stable power operation and maintenance over time. In this paper, by considering the household fuel cell as a power device, the safety standards of the fuel cell system for a reliable operation with the existing power system is being proposed.

• 한국항행학회논문지
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• 제22권3호
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• pp.179-188
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• 2018

항공전자 시스템의 개발할 때 항공 사고를 예방하기 위해서 SAE ARP4761 (민간 항공 시스템 및 장비 안전성 평가 프로세스 수행 방법 및 지침) 규격에 명시된 안전성 분석 및 평가를 수행한다. 안전성 분석은 시스템의 정상상태가 아닌 비정상상태에 대한 지식과 다른 규격들 간의 상호 연관성에 대한 지식이 요구된다. 때문에, 안전인증규격의 준수를 입증하는 자료를 자동으로 출력하는 도구가 필요하다. 본 연구는 규격의 안전성 분석 절차를 도식화하고, 안전 분석 CAD 도구들을 개별 절차에 적용하는 방법을 연구하였다. 예시 연구로서, ARP4761 부록의 여객기용 휠 제동 시스템 (WBS; wheel brake system)을 대상으로 ARP4761분석을 수행하였다.

• 수산해양교육연구
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• 제28권4호
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• pp.925-935
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• 2016

It is provided that seafarers qualified in accordance with STCW(International Convention on Standards of Training Certification and Watch-keeping for Seafarers) convention and code in safety training shall be required, every five years, to provide evidence of having maintained the required standard of competence, to undertake the tasks, duties and responsibilities listed in Chapter VI, section A-VI/1 of the STCW Code A. Every party to the STCW Convention has amended the relevant national regulations according to the above international convention and code. These amended Seaman's Act require the updating safety training which is only five years valid for existing seafarers serving onboard ship on international voyage. And above specified existing seafarers must, as of the 1st January 2017, have documentary evidence of either having completed the training course or updated their training within the last 5 years. In relation to the above international trend, the Korean Ministry of Oceans and Fisheries also has completed an amendment to its Seaman's Act. But, the Korean Seaman's Act has a supplementary provision to exempt the seafarers who have completed STCW advanced safety training from basic safety training. The purpose of this study is to define the problems of above mentioned exemption provisions and to make better policies for improvement. In order to complete the purpose, the research team has conducted an in-depth survey of various foreign cases on STCW safety training. Moreover, the team has suggested an improvement scheme in consonance with Korean shipping industry and society through out this report.

• 한국안전학회지
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• 제34권6호
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• pp.88-95
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• 2019

It has been only a few years since drones have been introduced to Korea, and as the use of drones has increased in industrial sites as well as in hobby activities, accidents such as workers' body parts coming into contact with rotating propellers have been occurring since 2016. Industrial accident cases are being filed. In the case of a remote control vehicle, if you release the remote controller in the event of an abnormal situation, it stops in place and no further danger occurs but in case of drones flying over the sky is different. Sudden motor stops during flight, uncontrolled changes in flight posture, loss of radio waves, loose propeller, etc, numerous factors can lead to accidents due to unintentional movements. Therefore, drone operators need safety knowledge as well as high knowledge about drones. However, drones with a weight of less than 12 kg can fly without a pilot's certification, and therefore, a minimum accident prevention measure is required. 10 accidents approved as industrial accidents since 2016, 23 accidents surveyed by general drone operator, 40 accidents surveyed by the Korean Consumer Resources Unfortunately for the purpose of writing this paper, drones are a new species and do not have many parameters for analysis but my experience has shown that the type of disaster does not deviate significantly. In addition, there is no paper that analyzes drone related industrial accidents not only in Korea but also in other countries. However, even if you watch an overseas drone accident video through YouTube, it is not much different from the case that occurs in Korea. I hope that this study will be of little help to all the drone pilots as well as the work safety of industrial drones used in industrial sites.

• 품질경영학회지
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• 제51권2호
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• pp.263-282
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• 2023

Purpose: This study aimed to examine the impact of FSSC 22000 food safety management system characteristics on the business performance of food-related companies and to verify the mediating effect of organizational capabilities in the relationship between them. Methods: To achieve this, a survey was conducted among employees of food companies in Seoul and the metropolitan area that have implemented the FSSC 22000 food safety management system, and the following main results were derived. Results: First, the FSSC food safety management system factors, such as measurement/analysis and improve- ment, documentation, management responsibility, and service and product realization, were found to have a significant positive (+) impact on organizational capabilities. The relative impact was in the order of measurement/analysis and improvement, documentation, management responsibility, and service and product realization. Second, organizational capabilities were found to have a significant positive (+) impact on business performance. Third, the FSSC food safety management system factors, such as measurement/analysis and improvement, management responsibility, resource management, and documentation, were found to have a significant positive (+) impact on business performance. The relative impact was in the order of measure- ment/analysis and improvement, management responsibility, resource management, and documentation. Fourth, the factors of management responsibility, resource management, measurement/analysis and improvement, and documentation, excluding resource management factors, were found to have a positive impact on business performance through the mediation of organizational capabilities. Conclusion: The results of this study may provide important implications for the implementation and efficient operation and management of the FSSC 22000 food safety management system in enhancing the business performance of food-related companies.

• 한국버섯학회지
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• 제15권4호
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• pp.178-182
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• 2017

GAP는 식품안전에 대한 세계적인 품질인증으로서 2007년 국내에서 도입된 이래 식품안전에 대한 중요성이 사회적인 이슈로서 해마다 국가 및 소비자의 관심이 커지고 있다. 최근에는 살충제가 검출된 달걀이 일부 시중에 시판됨으로서 식품안전에 대한 관심이 식탁에 오르는 모든 식품과 식자재에 대한 관심과 불안으로 이어지고 있어 본 연구에서 국산 양송이버섯에 대한 안전성을 검증하고 재배과정에부터 잔류농약과 중금속 등 위해물질을 관리함으로서 재배자의 건강부터 소비자의 안전까지 확보할 있는 GAP 기준의 양송이버섯 재배는 현시점에 매우 중요하다. 연구결과 양송이버섯의 잔류농약 검사항목인 Diflubenzuron과 Prochloraz의 불검출과 245종 잔류농약 분석결과 6종의 양송이버섯 모두 불검출로 확인되어 잔류 농약에 대한 안전성을 확인하였다. 그러나 연관된 연구결과 재배과정에서 농약의 사용 시 일부 잔류농약이 검출될 가능성이 있으므로 재배과정에서는 농약사용을 근본적으로 제어할 수 있도록 재배사 및 주변 환경관리를 철저히 하는 것이 매우 중요하다. 중금속 분석결과도 배지에서는 양송이버섯의 중금속 분석기준인 납과 카드뮴이 모두 기준치 이상으로 검출되어 버섯으로의 이행에 대한 결과가 매우 중요하였으나 6종의 양송이버섯 시료군 모두 납과 카드뮴이 불검출 되었으며 비소와 수은도 안전한 수준으로 확인되어 양송이버섯의 안전성을 확인하였다. 결과적으로 잔류농약과 중금속에 대한 국내산 양송이버섯의 안전성은 충분히 검증되어 GAP 인증 수준에서 적절하게 관리되고 있으며 재배과정에서의 각종 오염원, 물관리 등 모든 주변관리는 잔류농약 및 중금속에 대한 위해성을 충분히 관리할 수 있을 뿐만 아니라 GAP 인증에서 위해요소인 미생물관리에도 연관되어 있으므로 재배자와 재배사 및 재배환경에 대한 전반적인 상시관리는 GAP 양송이버섯 재배에서 매우 중요한 요소로 판단한다.

• 항공우주시스템공학회지
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• 제11권3호
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• pp.31-38
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• 2017

항공 산업의 소비 수요가 증가함에 따라 국내에서 수행할 수 있는 인증체계 및 비행시험 운영에 필요한 연구가 요구된다. 이에 따라 본 논문에서는 국내 민항기 KC-100, 군용기 T-50 사례와 국외 FAA(Federal Aviation Administration), CAAC(Civil Aviation Administration of China) 기관의 비행시험 관련 문건을 바탕으로 개발 및 개조 중에 있는 항공기에 대한 성능검증, 시험평가 및 안전성 인증을 위한 비행시험 운영 절차와 안전 관리 프로그램 개발 연구를 수행하였다. 또한 항공기 비행시험 절차에 적용할 수 있는 FTSC(Flight Test Safety Committee)의 모범사례(Best Practices)를 조사 분석하였다.

• 전기학회논문지P
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• 제64권3호
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• pp.138-142
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• 2015

Most of the existing studies on functional safety testing for the railway signaling system software have focused on verifying the functional safety through the monitoring of internal memory embedded railway signaling system. However, the railway signaling system is one of the typical embedded control system in the railway sector, and the embedded software has a characteristic of generating an appropriate outputs through the combination of internal processing in consideration of the current internal status and external input. Therefore, the test approach of using the interface communication channel can be effective way for the functional testing for railway signaling system software in consideration of these characteristic. Since a communication interface specification of the railway signal system has a the properties of the sequence input and output signals, test-case for software testing is the most effective methodology by MSC (Message Sequence Chart) language, one of the graphic language. The MSC-based test-case generating methodology for signaling system software was proposed in this paper.

• 한국안전학회지
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• 제32권4호
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• pp.122-128
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• 2017

Recently, accidents such as human accidents are increasing rapidly due to natural disasters and changes in social conditions due to abnormal weather. As a result, damage has been causing massive damage unlike the past. In the case of small and medium enterprises excluding financial institutions and big company, there is no system for prevention and restoration for stable operation from various risks such as human and natural disasters. As the current disaster continues, public and private companies have raised the need for BCM, and with the introduction of the ISO22301 certification system, the company has been establishing and operating Enterprise Disaster Management Standards in the Ministry of Public Safety and Security since 2007. However, in most SMEs, it is hard to bear the input of internal labor and investment cost, and there is a lack of personnel with expertise to conduct BCM diagnosis. Therefore, in this paper, we will study the diagnosis level of enterprise continuity plan which is commonly used in Korea and abroad. Based on this, we will study the BCM system diagnosis method which can be applied to small and medium enterprises in Korea efficiently.