• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.2 no.3
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• pp.47-58
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• 1988

본 논문에서는 고광도방전등의 전기적 특성을 해석하기 위한 아아크모델을 제시하였다. 방전관내에서 반경방향의 온도분포가 포물선형태로 변화하는 것으로 가정하고 방전관의 단위체적에서의 에너지평형식을 단면적에 대해 적분함으로서 단위길이당의 에너지평형식으로 변환하였다. 이 에너지평형식과 회로방정식, 그리도 오옴의 법칙을 이용하여 아아크의 전류와 전압의 1주기에서의 변화를 계산하여 좋은 결과를 얻었다. 또한 방전관의 축온도와 이에 따른 방사에너지의 값을 계산하는 간단한 방법을 제시하였다.

• The Journal of Engineering Geology
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• v.16 no.2 s.48
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• pp.179-187
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• 2006

Two specimens of mortar containing artificial slit and Geochang granite containing the straight notch were selected to be used in this research. Source mechanism of micro-crack by radiation pattern based on dislocation the-ory was estimated by the first motion of longitudinal wave and spatial distribution between the location of transducers for monitoring acoustic emission and source coordinates determined by the application of the least square method. Result of analysis showed that the orientation of dislocation surfaces due to shear dislocation and tensile dislocation squares considerably with crack direction visually observed. The ultimate goal of this study is to provide fundamental information for source mechanism of micro-crack within materials.

• Journal of The Korean Radiological Technologist Association
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• v.27 no.2
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• pp.280-280
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• 2001

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2004.06a
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• pp.124-126
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• 2004

웹 서비스기술에서 XML은 단순히 전송 네트워크로서 메시지를 전송하고 받는 역할만 하는 HTTP에 비해 서비스를 등록, 검색, 기술, 호출하는 방법을 정의하는 중요한 요소이다. XML은 어떤 플랫폼에서나 읽을 수 있는 형식을 제공하기 때문에 특정 회사의 제품과 관련된 특정 환경에 얽매이지 않아도 된다. 이처럼 기업 간의 데이터 상호 교환을 위한 언어로서 XML의 역할이 중대해지고 있기 때문에, WACID(Waste Comprehensive Information Database) 시스템에서는 데이터 검증 및 교환을 목적으로 XML 데이터를 생성하고 있다.(중략)

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2003.11a
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• pp.470-483
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• 2003

As the amount of radioactive waste and related information to be managed are increasing, some organizations are trying or planning to computerize the management on radioactive waste. When we consider that information on safe management of radioactive waste should be used In association with national radioactive waste management project, standardization of data form and its protocol is required. Korea Institute of Nuclear Safety(KINS) will establish and operate nationwide integrated database in order to effectively manage a large amount of information on national radioactive waste. This database allows not only to trace and manage the trend of radioactive waste occurrence and in storage but also to produce reliable analysis results for the quantity accumulated. Consequently, we can provide necessary information for national radioactive waste management policy and related industry's planing. This study explains the database design which is the essential element for information management.

• Nuclear industry
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• v.15 no.11 s.153
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• pp.48-52
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• 1995

연구로 1호는 우리나라 최초의 원자로로서, 62년 3월 19일 최초 임계에 도달하여, 우리나라에서 처음으로 `제3의 불`을 점화시켰다. 그후 33년 동안 연구로 1호는 그 역할을 최대한 수행하였다. 이제는 노후된데다가 새 연구로인 $\ulcorner$하나로$\lrcorner$의 완공에 따라, 금년말경에는 운전을 정지하여 방사성물질을 제거한 후, 2000년경에 기념전시관으로 이용할 계획으로 있다. 연구로 1호의 건설$\cdot$운영$\cdot$이용 및 그 폐로계획에 대하여, 33년간의 그 흥성과 종결을 연보형식으로 그 발자취를 되새겨보면서 살펴본다.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.19 no.1
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• pp.87-94
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• 2008

This paper proposes a high-gain monopulse antenna using the folded reflectarray for a monopulse target-tracking radar systems designed at the center frequency of 94 GHz. In target-tracking radar systems, the angle of arrival of the incoming wave Is determined by comparing the signal received on two or more non-coincident antenna patterns. This is the physical basis of most target-tracking techniques and the comparison is made simultaneously in a monopulse radar systems. In this paper, the antenna consists of polarizing grid, reflectarray, multimode feed horn, and comparator implemented by wavguide. The antenna is able to have three radiation patterns by using the monopulse feed systems assembled by multimode feed horn and comparator. The antenna demonstrates maximum gains 36dB, 33.5dB and 27.2dB at sum mode, azimuth mode, and evevation mode respectively.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.5
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• pp.3557-3566
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• 2015

In the case of elevated railway station in which railway is connected with superstructure of station, vibration and noise level is relatively higher than those of general structure type station due to structural characteristic which transmits vibration directly. Therefore, characteristic understanding of structural vibration and accompanying structure cause noise and establishment of reduction plan through the results are in need. Test and analysis are performed in this research to consider correlativity between structural vibration and accompanying structure cause noise when external forces are applied on standard slab and floating slab which is able to isolate vibration. By producing and loading on standard and floating slab, vibration and noise response are measured while simulation using numerical analysis, finite element method and SEA method is performed. The results about structural dynamic behavior of slab, correlativity between structural vibration and noise, reduction performance of floating slab is deduced through the analysis of tests.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.5 no.3
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• pp.213-220
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• 2007

Appropriate numerical models for the simulation of off-gas flow in hot area of the vitrification plant have been developed in this study. The models have been applied to analyze the effect of design parameters of real plant and numerical analyses have been performed for CCM(Cold Crucible Melter), pipe cooler and HTF(High Temperature Filter). At first, the effect of excess oxygen and the ratio of oxygen distribution on combustion characteristics in the CCM has been studied. Next, solidification behavior of radio nuclide in the pipe cooler has been numerically modeled and scrutinized. Finally, flow pattern in accordance with the location of off-gas entrance of the HTF has been compared.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2005.11a
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• pp.69-78
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• 2005

Appropriate numerical models for the simulation of off-gas flow in hot area of the vitrification plant have been developed in this study. The models have been applied to analyze the effect of design parameters of real plant and numerical analyses have been performed for CCM(Cold Crucible Melter), pipe cooler and HTF(High Temperature Filter) At first, the effect of excess oxygen and the ratio of oxygen distribution on combustion characteristics in the CCM has been studied. Next, solidification behavior of radio nuclide In the pipe tooler has been numerically modeled and scrutinized. Finally, flow pattern In accordance with the location of off-gas entrance of the HTF has been compared.