• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2006년도 춘계 학술발표회 논문집
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• pp.818-823
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• 2006

In this study, the suitability of CFGD(concrete faced gravefill dam) was investigated by examining the strength and deformation characteristics of a gravelfill material, a CFGD main fill material, and comparing them with those of several rockfill dam materials. The gravelfill material exhibited similar strength and deformation properties to those of the main fill materials of existing stable large rockfill dams. Since not only CFGD has environmental and economic advantages over CFRD, but its main fill material compares favorably with those of the existing stable CFRDs, CFGD may be the best choice when natural gravel materials are abundant in the vicinity of the dam construction location.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2006년도 전력전자학술대회 논문집
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• pp.137-139
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• 2006

This paper present an implementation of digital control system for a phase-shift full-bridge converter using a digital signal processor. The digital control of phase-shift full-bridge converter provides many advantageous of easily generating various phase-shift timing and implementing a complex voltage and current control algorithm. The digital controller is implemented using the DSP TMS320F2812 and the converter and controller operation is proved through the experimental results.

• 대기
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• 제27권2호
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• pp.251-258
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• 2017

The standard weighing raingauges have a capacity limit in measuring the amounts of precipitation. Exceptions are those using a siphon to drain the collected water during observations. To reduce the drain time of the siphon type or to overcome the hassles associated with the manual emptying of the bucket for measuring, the most of weighing gauges use a large bucket for storing of rainwater to be measured. To avoid the above-mentioned adverse requirements, we propose a paired barrel for a weighing raingauge. The paired barrel may improve the accuracy of the weighing raingauges by getting rid of their capacity limit and make the gauges smaller in size and lighter in weight than the conventional ones. We showed its proper function and the feasibility of realization by testing a prototype paired barrel.

• 융합보안논문지
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• 제10권1호
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• pp.19-27
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• 2010

오늘날 네트워크의 속도와 인터넷 기술의 발전과 동시에 윈도우 취약점을 통한 악성코드가 많이 발생하고 있다. 악성코드는 여러 감염 형태 벚 특성이 있어 바이러스 백선을 이용하여 탐지하기도 어려울 뿐만 아니라 제거하는 것도 쉽지 않다. 본 논문은 윈도우 악성코드의 분류와 특정을 분석하여 프로그램을 이용한 악성코드의 위치를 파악하고 신종 악성코드에 대한 신속한 대응을 위해 스크립트 기술을 제안한다.

• 한국동물학회:학술대회논문집
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• 한국동물학회 2003년도 한국생물과학협회 학술발표대회
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• pp.181.1-181
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• 2003

No Abstract, See Full Text

• 전력전자학회:학술대회논문집
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• 전력전자학회 2007년도 하계학술대회 논문집
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• pp.135-137
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• 2007

A phase shifted full-bridge PWM converter (PSFBC) has been used as the most popular topology for many applications. But, for the reasons of the cost and performance, the control circuits for the PSFBC have generally been implemented using analog circuits. The studies on the digital control of the PSFBC were recently presented. However, they considered only the digital implementation of the analog controller. This paper presents the modeling and design of the digital controller for the PSFBC in the discrete time domain. The discretized PSFBC model is first derived considering the sampling effect. Based on this model, the digital controller is directly designed in discrete time domain. The simulation and experimental results are provided to verify the proposed modeling and controller design.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2016년도 추계학술대회 논문집
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• pp.39-40
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• 2016

Power conversion system comes with a twenty-year warranty commonly. Life test requires a long time. The life of power conversion system that especially sensitive to temperature can be expected within a short time by using Arrhenius technique with worst stress condition than actual working condition. This paper researches reliability analysis and environment test of power conversion system.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2009년도 추계학술대회 논문집
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• pp.513-514
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• 2009

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2009년도 추계학술대회 논문집
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• pp.381-382
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• 2009

• Bulletin of the Korean Chemical Society
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• 제27권3호
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• pp.357-358
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• 2006