• Journal of the Korea Safety Management & Science
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• v.16 no.4
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• pp.53-62
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• 2014

According to the statistics of occupational injuries in 2013, the work platforms were main objects causing fall injuries in construction sites. But many scaffold and platform workers use and install the work platforms and the fixed and mobile scaffolding without considering about safety and health standards. We had done a nationwide survey about how the platform workers obey safety and health standards. As the result of this survey, in order to ensure the safety of the work platforms, we founded that the platform workers must obey the safety and health standards when using and installing the work platforms. To improve the safety and health conscious of the workers, it needs to educate a worker on safety and health standards for work platforms. Also, to effectively prevent constructin injuries for the work platforms, it is rextricted for workers to use only safety certified work platforms. And, before installing and using work platforms, it needs to make a work plan for work platforms and obey it.

• Journal of Aerospace System Engineering
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• v.15 no.1
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• pp.95-101
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• 2021

The detection sensitivity of a Walk Through Metal Detector (WTMD) currently being developed and operated in Korea differs from one manufacturer to another, making it difficult for them to be used based on Aviation Security level. In addition, the FAA 3-GUN Test approved by the domestic aviation authority for aviation security supervision is a single test object. There is no Operational Test Piece (OTP) consisting of multiple test objects for the operation of aviation security for a WTMD. This paper, the detection sensitivity of a WTMD applied by a commercial OTP was measured and detection sensitivity standards for a WTMD were developed based on results of measurement. Furthermore, institutional plans to maintain the same detection sensitivity for domestic aviation security were made through suggestions for Korean standards OTP development methods, taking characteristics of the aviation field into consideration.

• Journal of Korean Society for Quality Management
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• v.33 no.3
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• pp.41-46
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• 2005

The production, processing, sale and service of food materials are not subject to attainment via a single country. In accordance with internationalization of the world, issues related to food safety have emerged as critical international concerns and they are closely associated with the health and interest of domestic consumers, producers, manufacturers, and distributors. As a third party certification standards, ISO 22000 is in progress International Organization for Standardization(ISO) and the Draft International Standard(DIS) has already been presented on December 2004. The purpose of this study is to analyze the international standards, guidelines and legislation in regard of Food Safety Management System(FSMS) including ISO 9001, Hazard Analysis Critical Control Point(HACCP) and Product Liability(PL) so as to present Korean-model Food Safety Management System requirements and system establishment model.

• Journal of Aerospace System Engineering
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• v.13 no.1
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• pp.62-68
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• 2019

The software installed on an aircraft is directly related to its safety. Therefore, it shall comply with the standards of the airworthiness certification to ensure safety of flight. Airborne software should be developed in accordance with the DO-178 (Software Consideration in Airborne Systems and Equipment Certification) to comply with the airworthiness certification criterion. However, the military airborne software has been developed in accordance with the DAPA weapons system software development and management manual. In this paper, we completed a questionnaire survey of software experts. We also suggest a military airborne software development/certification process based on DO-178.

• Journal of Aerospace System Engineering
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• v.9 no.2
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• pp.63-71
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• 2015

An aircraft engine is considered as the most important element among aircraft systems. Thus type certificate is required for an aircraft engine to ensure its safety under appropriate airworthiness standard. U.S. FAR Part 33 or European CS-E is widely adopted as an airworthiness standard for aircraft engines, and other representative countries of the world established own airworthiness standards under their regulations. In this paper, we compared differences of the requirements between FAR Part 33 and CS-E, and proposed the rulemaking items to harmonize Korean Airworthiness Standard for Aircraft Engines with worldwide standards and to contribute to growth of aviation industry.

• Journal of Advanced Navigation Technology
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• v.17 no.6
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• pp.765-776
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• 2013

Civilian aircraft industry, even if the superior performance of the product in order to ensure the safety of aircraft navigation safety requirements necessary for compliance does not receive a legally recognized can not be used in aircraft characteristics. These are applied in a variety of safety in avionics for navigation of civil aircraft certification standards for the technology is implemented. KTSO-C113 aircraft for the purpose of electronic display technology to authenticate standard contains minimum performance standards. Standard design and manufacturing technology for type approval means approval by mounting the aircraft in order to use a separate approval is required. Through this paper, multi-display technology standards for aircraft type certification approval system and demonstrate compliance with the requirements for the certification practices introduced are presented.

• Journal of Aerospace System Engineering
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• v.16 no.4
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• pp.28-34
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• 2022

In 2021, Virgin Orbit converted a 747-400 aircraft into an air launch platform, and successfully launched it twice in February and July. Compared to the existing ground launch, interest in the air launch is increasing due to its great utility, such as its independence from the launch location or weather, cost reducing factor, shorter launch preparation time, and its benefit pursuant to altitude and speed. Additionally, as small satellites have similar performance to mid/large satellites in the past due to the miniaturization and precision of electronic equipment, small satellite launches are expected to dominate in the future. In this paper, institutional certification methods such as domestic, overseas, civilian and military airworthiness certification regulations/procedures are reviewed to ensure flight safety of aerial projectiles using large domestic civil aircraft, and applicable civil and military airworthiness certification technology standards are reviewed and analyzed. Additionally, we will review and suggest effective airworthiness certification application plans that reflect the reality, and present airworthiness certification standards (draft) for aerial launch vehicles, by analyzing applicable airworthiness certification technical standards when remodeling aerial launch vehicles.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.65 no.4
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• pp.242-249
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• 2016

The railway system is being converted to the computer system from the existing mechanical device, and the dependency on software is being increased rapidly. Though the size and degree of complexity of software for railway system are slower than the development speed of hardware, it is expected that the size will be grown bigger gradually and the degree of complexity will be increased also. Accordingly, the validation of reliability and safety of embedded software for railway system was started to become influential as the important issue. Accordingly, various software test and validation activities are highly recommended in the international standards related railway software. In this paper, we presented a software coding analysis tool using symbolic execution for railway system, and presented its result of implementation.

• Korean Journal of Organic Agriculture
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• v.23 no.4
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• pp.735-748
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• 2015

Main aims of environment-friendly agriculture (EFA) are increasing functions for environmental conservation of agriculture and building consumer confidence for agricultural products safety. The low-pesticide certification will be abolished in 2016, and this will give rise to much confusion to low-pesticide certification producers. The non-pesticide agriculture doesn't mean organic farming, and the EFA standards of Korea don't match up to international standards to organic agriculture. The system improvement directions for EFA are to devide into two types of organic farming and EFA, and EFA includes non-pesticide and low-pesticide farming both. These types must have legal grounds respectively.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.04a
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• pp.218-219
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• 2022

Among the Barrier Free (BF) certification evaluation items for public facilities, at which position the standard for the effective height of the stair railing handle should be calculated is not clearly determined. Because of this, not only the evaluation standards of the certification authority and the evaluation committee are different, but disputes are occurring between the ordering organization, the design company, and the construction company. Therefore, the stair railing installation standard laws for public facilities were analyzed and through a case study of institutions that obtained the BF certification, problems were analyzed. The results of problem analysis reveal the following. 1) The standards of the Ministry of Health and Welfare and the Ministry of Land, Infrastructure, and Transport were different. 2) The effective height calculation standard was ambiguous, and disputes occurred frequently. To solve this problem, we proposed improvement plans for calculating the height of the stair railing that can comply with laws while ensuring safety.