• Nuclear Engineering and Technology
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• 제45권1호
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• pp.115-124
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• 2013

Among the several options to solve PWR spent fuel accumulation problem in Korea, the dry storage method could be the most realistic and applicable solution in the near future. As the basic objectives of dry storage are to prevent a gross rupture of spent fuel during operation and to keep its retrievability until transportation, at the same time the importance of a spent fuel integrity evaluation that can estimate its condition at the final stage of dry storage is very high. According to the national need and technology progress, two representative nations of spent fuel dry storage, the USA and Japan, have established different system temperature criteria, which is the only controllable factor in a dry storage system. However, there are no technical criteria for this evaluation in Korea yet, it is necessary to review the previously well-organized methodologies of advanced countries and to set up our own domestic evaluation direction due to the nation's need for dry storage. To satisfy this necessity, building a domestic spent fuel test database should be the first step. Based on those data, it is highly recommended to compare domestic data range with foreign results, to build our own criteria, and to expand on evaluation work into recently issued integrity problems by using a comprehensive integrity evaluation code.

• 대한의생명과학회지
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• 제23권3호
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• pp.155-160
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• 2017

Biomedical laboratory is full of risks. Risk could be biological, chemical, radioactive, mechanical, physical, fire and electrical. All possible risks need to be identified, evaluated and controlled. A risk management system must be in place to prevent accident or loss of lives and to improve overall workplace safety and productivity. Safety in laboratory is a combination of appropriate risk management system, engineering controls and technical facilities, administrative controls and safety procedures and practices. Laboratory safety culture must be developed so that exposure to hazards for laboratory personnel, community and environment will be minimized or eliminated. In this review, importance of safety in a biomedical laboratory and risk management will be discussed.

• 한국건설관리학회논문집
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• 제3권4호
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• pp.132-138
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• 2002

최근 건설시장의 선진화를 목적으로, 주어진 공기 내 완공 및 비용절감, 품질향상 등을 위하여 PMIS(사업관리정보시스템)의 활용이 심도 있게 요구되고 있다. 하지만, 현재 각 프로젝트에서 개발된 PMIS는 개발기간의 한시성으로 대개 공사현황위주로 되어 있고, 프로젝트 수행자들의 PMIS사용 역시 형식적으로 운용됨으로써, 발주자, 사업관리자, 시공자간의 효율적인 의사소통에 한계가 있는 실정이다. 이에 현재까지 개발된 사업관리정보시스템을 검토하고, 그동안 현업에서 개발한 경험을 토대로 효율적 인 PMIS의 구축방향을 제시코자 한다.

• 대한안전경영과학회지
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• 제10권3호
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• pp.19-27
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• 2008

Since 1995, the facility of class 1 and 2, classified by law had been subject to system of post maintenance management where periodic safety inspection and diagnosis to identify any problems and to take appropriate measures as a matter of urgency. Although the standards and systems had been revised many times for continuous improvement due to surrounding environmental factors, the technical factors and other factors for improvements, continuous researches and efforts are needed to ensure even higher effectiveness. Furthermore, the consciousness of the management body that executes and implements such improvements for facility management is most important. Therefore in this study, through such analysis, more realistic management consciousness review was performed. Also the direction for improvements is proposed, to carry out more effective facility safety management systems implementation.

• Biomolecules & Therapeutics
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• 제25권4호
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• pp.345-353
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• 2017

Plant expression systems have been developed to produce anti-cancer vaccines. Plants have several advantages as bioreactors for the production of subunit vaccines: they are considered safe, and may be used to produce recombinant proteins at low production cost. However, several technical issues hinder large-scale production of anti-cancer vaccines in plants. The present review covers design strategies to enhance the immunogenicity and therapeutic potency of anti-cancer vaccines, methods to increase vaccine-expressing plant biomass, and challenges facing the production of anti-cancer vaccines in plants. Specifically, the issues such as low expression levels and plant-specific glycosylation are described, along with their potential solutions.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 1996년도 추계학술대회논문집; 한국과학기술회관, 8 Nov. 1996
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• pp.98-103
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• 1996

Elimination of squeal noise generated during brake application is an important task for the improvement of comforts in vehicles. In this paper, the structure of the wet brake and its operation are described first, and the cause of the noise is analyzed by identifying how the factors such as torque, speed, oil pressure, lubricant, and friction material affect the noise. To verify the mechanism of generation of the noise, several experiments of brake applications are executed, Based upon the review on the technical papers and the results from the experiments, several solutions to reduce the noise, available in real applications, are suggested, and the feasibilities of them are confirmed through the applications to the current system.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제5권11호
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• pp.1891-1908
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• 2011

Cyber-physical systems (CPSs) are an emerging discipline that involves engineered computing and communicating systems interfacing the physical world. The widespread applications of CPSs still face enormous challenges because of the lack of theoretical foundations. In this technical survey, we review state-of-the-art design techniques from various angles. The aim of this work is to provide a better understanding of this emerging multidisciplinary methodology. The features of CPSs are described, and the research progress is analyzed using the following aspects: energy management, network security, data transmission and management, model-based design, control technique, and system resource allocation. We focus on CPS resource optimization, and propose a system performance optimization model with resource constraints. In addition, some classic applications (e.g., integrating intelligent road with unmanned vehicle) are provided to show that the prospects of CPSs are promising. Furthermore, research challenges and suggestions for future work are outlined in brief.

• 한국방재안전학회논문집
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• 제13권1호
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• pp.41-50
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• 2020

전문건설 업체의 안전보건경영시스템 도입·구축·운용은 안전시스템 도입과 운영 과정에 소요되는 비용이 발생하는 문제가 있다. 그리고 건설 안전 분야 기술 인력을 보유하지 못한 열악한 환경에서 안전시스템 구축 및 인증 취득 및 정착으로의 선순환 체계 구축이 쉽지 않은 실정이다. 이 논문의 목적은 건설업 안전보건경영시스템 관련 문헌을 조사·검토하고 실태 등 다양한 연구 동향을 분석하는 데 있다. 이를 통하여 건설업 안전보건경영시스템 구축 및 인증을 취득하고자 하는 전문건설 업체와 인증 취득 후 사후심사 및 연장심사를 이행 중인 전문건설업체의 안전보건경영시스템 수준 향상을 위한 방안을 모색하는데 있다.

• 경영정보학연구
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• 제9권3호
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• pp.83-98
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• 2007

본 연구에서는 최근 급속한 속도로 발전하고 있는 게임 산업에 비하여 상대적으로 미진한 상태에 있는 게임 서비스에 관한 정보보호 기술 연구를 진행하였다. 연구수행을 위하여 현재 온라인으로 서비스되고 게임들을 대상으로 침해현황을 조사하여 이를 유형별로 분류하였다. 정리된 게임 서비스 침해유형에 따라 서비스 침해를 발생시키는 원인을 분석하여 이를 해결할 수 있는 기술적 방안을 설계한 다음 현재 제공되고 있는 게임 서비스로의 적용가능성을 검증하였다. 본 연구의 결과는 게임 서비스 보호를 위한 연구의 방향성을 제시함과 동시에 게임 서비스를 포함하는 일반 응용소프트웨어에 대한 정보보호 기술개발에도 적용될 수 있을 것으로 기대한다.

• 대한조선학회논문집
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• 제59권5호
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• pp.330-337
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• 2022

Research on object detection algorithms using 2D data has already progressed to the level of commercialization and is being applied to various manufacturing industries. Object detection technology using 2D data has an effective advantage, there are technical limitations to accurate data generation and analysis. Since 2D data is two-axis data without a sense of depth, ambiguity arises when approached from a practical point of view. Advanced countries such as the United States are leading 3D data collection and research using 3D laser scanners. Existing processing and detection algorithms such as ICP and RANSAC show high accuracy, but are used as a processing speed problem in the processing of large-scale point cloud data. In this study, PointNet a representative technique for detecting objects using widely used 3D point cloud data is analyzed and described. And RandLA-Net, which overcomes the limitations of PointNet's performance and object prediction accuracy, is described a review of detection technology using point cloud data was conducted.