• 식품과학과 산업
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• 제52권2호
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• pp.140-152
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• 2019

"Contained use" means using LMOs during manufacturing processes within a facility, equipment or other physical structures to prevent the spread of LMOs to the external environment. LMOs and their substances not only have played an essential role in various industries in different ways, but also have made to spread concerns in Biosafety widely. In Korea, the LMO Act is to implement the Cartagena Protocol on Biosafety' since 1st Jan 2008. This is focused on Biosafety and Risk management for LMOs according to the precautionary principle.

• 한국안전학회지
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• 제37권6호
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• pp.136-147
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• 2022

The purpose of this study is to analyze four cases of firefighter burns in various fire scenes and to find prevention measures to decrease firefighter injuries. Among the analysis reports prepared by the National Fire Research Institute of Korea from 2016 to 2020, four burn-related accidents are summarized and the main causes are conveyed. The four accidents include second-degree burns from using extinguishers during containment of fires; nine firefighters burned due to re-ignition in the LPG car repair shop; two firefighters injured with third-degree burns from using fire extinguishers during life-saving events in residential housing; and injuries from the radiant heat of the tank BLEVE near the factory fire. These cases are comprehensively investigated in their respective scenes and analyzed based on the fire site investigation reports from the fire department and related theoretical explanations of risk for each accident scene. In the third case study, some experimental research is conducted to evaluate the risk involved with the use of safety gloves. This is evaluated by reviewing Fire Tactics and Standard Operational Procedures (SOP) to determine improvements and recommendations for an efficient firefighting response. Results show that the main causes of burn accidents are the insufficient use of personal protective equipment (PPE), such as safety gloves, and the failure to follow firefighting tactics or SOPs. Through the accident investigation and assessment, it is concluded that to reduce the frequency of burn accidents, the performance of firefighting equipment, SOPs, protection tactics, and safety policy systems require improvement.

• ETRI Journal
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• 제35권2호
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• pp.292-300
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• 2013

Augmented reality (AR) is a popular service in mobile devices, and many AR applications can be downloaded from app stores. As TV broadcasting has continued to integrate with the Internet, it has become an area in which the AR concept is able to reside, although in a simple form, such as an advertisement placed in the static region of a scene. There are some restrictions against TV broadcasting realizing AR since TVs are fixed devices and typically do not have GPS, geomagnetic, or acceleration sensors, which are standard equipment in mobile devices. However, the desire to experience AR on a large TV screen has triggered research and development for an ideal AR business model and service type. This paper introduces several use cases for augmented broadcasting services and also presents an augmented broadcasting metadata scheme designed for a broadcasting environment. We also verify some of the use cases and an augmented broadcasting metadata scheme in an implemented augmented broadcasting system based on a hybrid TV platform.

• 스마트미디어저널
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• 제9권3호
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• pp.130-141
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• 2020

국내는 방제·방역, 탐사·측량, 수색·구조, 영상촬영, 시설관리 등 드론활용 시장 중심으로 성장 추세이나 드론의 핵심기술·부품에 대한 외산 의존도는 높은 실정이다. 미국, 중국 등 드론 선진국들은 드론의 무기화를 확대하고 있으며, 이에 따라 향후에는 드론산업 관련 수·출입 규제 강화, 독과점 등 국가 간 무역 전쟁이 더욱 강화될 우려가 있다. 따라서 차세대 드론의 핵심 기술과 부품·부속장비 등에 대한 연구개발 및 국산화를 위한 정책적 연구와 인프라 투자가 선행 되어야 할 필요가 있다. 본 연구에서는 AHP 기법을 활용하여 소형 드론기업 육성을 위한 인프라 투자 우선순위를 선정하고, 인프라 투자 전략을 제시하였다.

• 항공우주기술
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• 제3권2호
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• pp.177-182
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• 2004

고도 정보화 사회라고 일컫는 오늘날 컴퓨터는 거의 모든 분야에서 사용되고 있으며, 항공 산업에서도 항공기 및 관련 장비의 개발 과정에서 내장형 소프트웨어가 차지하는 비중이 급증하고 있다. 이에 항공용 소프트웨어에 대한 개괄적인 사항을 알아보고, 항공용 소프트웨어의 분류, 소프트웨어 라이프사이클, 각 목표를 달성하기 위한 활동과 설계고려 사항을 알아본다.

• 대한의용생체공학회:의공학회지
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• 제8권1호
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• pp.63-68
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• 1987

The biological effects for the use of hypertherinla to treat malignant tumors has been well studied and encouraging clinical results have been reported. However, the engineering and technical aspects of hyperthermia for the deepseated tumors has not been satisfactory. We have developed the FF capacitive hyperthermia device(GHT RF8)by cooporation with Yonsei Cancer Center and Green Cross Medical Equipment Corporation. It was composed with 8.10 MHz RF generator, capacitive electrode, matching system, cooling system, temperature measuring thermocouples and control PC computer. We have measured the temperature and thermal distribution in agar phantom, animals and human tumors.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 추계학술대회 논문집(III)
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• pp.574-580
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• 2003

This research heightens use efficiency of existent train railroad equipment by maximum through communication based train control system, and because system that take advantage of new skill compares with safety of old signal system same or it that show that is high be. Examined MBS Embodiment method of most suitable by presenting calculation that find out location of train that this treatise runs free curved line department to embody MBS(Moving Block System) through communication

• 콘크리트학회논문집
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• 제16권2호
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• pp.139-146
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• 2004

최근 들어 가설기자재의 성능에 대한 관심이 급속히 증가하고 있다. 1992년 산업안전보건법에 의해 가설기자재 성능검정제도가 도입된 이후, 최근 2년간에 걸쳐 실시한 성능시험을 토대로 강제파이프서포트에 대한 기초적 연구를 진행하였다. 강제파이프 서포트의 국내 규격과 현재 연구현황을 소개하였으며, 총 849개의 시편을 대상으로 외관과 내경의 길이 및 두께조사와 겹침길이 및 평압시험과 나이프에지시험 등의 압축강도시험을 실시하였다. 전체적으로 신품과 재사용품으로 구분하여 시험을 하였으며, 재사용품의 성능감소를 파악할 수 있었다. 규격 또한 신품에 비해 많은 부분 부족한 것으로 나타났다 일반적으로 재사용품이 $10\%$ 정도의 성능감소를 파악할 수 있었으며, 이를 고려하여 볼 때 현장에서의 품질확인과 감독이 반드시 필요할 것으로 판단되었다. 우선 기초적인 결과를 토대로 통계값을 제시하였고, 각 영향요소별 세부분석은 현재 연구진행중이다. 본 연구결과는 향후 파이프서포트에 대한 기본자료로 활용될 것으로 기대된다.

• ETRI Journal
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• 제38권4호
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• pp.787-797
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• 2016

Mining, construction, and other special vehicles for heavy use are designed to work under high-performance and off-road working conditions. The driving and executive mechanisms of the support structures and superstructures of these vehicles frequently operate under high loads. Such high loads place the equipment under constant risk of an accident and can jeopardize the dynamic stability of the machinery. An experimental investigation was conducted on a refuse collection vehicle. The aim of this research was to determine the working conditions of a real vehicle: the kinematics of the waste container, that is, a hydraulic rotate drum for waste collection; the dynamics of the load manipulator (superstructure); the vibrations of the vehicle mass; and the strain (stress) of the elements responsible for the supporting structure. For an examination of the force (weight) on the rear axle of a heavy vehicle, caused by its own weight and additional load, a universal measurement system is proposed. As a result of this investigation, we propose an alternative system for continuous vehicle weighing during waste collection while in motion, that is, an on-board weighing system, and provide suggestions for measuring equipment designs.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2008년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.169-171
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• 2008

The brake systems of the rolling stocks are generally consisted of electrical and mechanical brake systems. Because of its inherent structure of the each brake system, the electrical brake system is mainly used at the high speed range while the mechanical brake system is used at the relatively lower speed range. It is desirable for the rolling stocks to apply the entire electrical brake system. However, since the brake force from electric brake system is not enough to stop the rolling stock within the legal stop distance. Therefore, the mechanical brake system is indispensable to rolling stocks. In general, the vast majority of the world trains are equipped with mechanical braking systems which use compressed air as the force to push block on to wheels or pads on to discs. These mechanical systems are known as air brake or pneumatic brakes. For the air brake system, basically huge scale air compressor is equipped and the long pipe line is complexively connected. Since mass of these air brake components, it is difficult to be a light weight equipment and the long pipe line raise the maintenance problem. In order to overcome these problems of air brake system, the hydraulic brake system is proposed in this research. The hydraulic brake system makes the whole weight of brake equipment be light and large braking force can be applied. Therefore, in this research, the validity and advantages of applying the hydraulic brake system are reviewed.