• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 C
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• pp.1472-1473
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• 2006

During normal machine operation, partial discharge(PD) measurements were peformed with turbine generator analyzer(TGA) in two high voltage motors(rated 6.6 kV). These high voltage motors were installed with 80 pF capacitive couplers at the terminal box. TGA summarizes each plot with two quantities such as the normalized quantity number(NQN) and the peak PD magnitude (Qm). The trend analyses of NQN and $Q_m$ value are available for monitoring of the insulation condition in stator windings of high voltage motors.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 제36회 하계학술대회 논문집 C
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• pp.2175-2178
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• 2005

During normal machine operation, partial discharge(PD) measurements were performed with turbine generator analyzer(TGA) in five high voltage motors(rated 6.6kV). These high voltage motors were installed with 80pF capacitive couplers at the terminal box. The PD patterns were displayed two dimensional and three dimensional. TGA summarizes each plot with two quantities such as the normalized quantity number(NQN) and the peak PD magnitude(Qm). Off-line PD measurements were conducted on five motors. These motors were energized to 3.81kV. The PD levels in pC were measured with a conventional digital PD detector. The comparison of positive to negative PD indicates whether the defect elements of PD are within the insulation or on the insulation surface. Internal discharges were generated in phase A, B and C of COP-B and pulv.-B, in phase B of Pulv. C and in phase C of Pulv.-D motor. Discharge at conductor surface was discovered in phase A of Pulv. D motor. Slot discharges occurred in three phases of Pulv. E motor.

• Genomics & Informatics
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• 제6권4호
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• pp.231-234
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• 2008

Precise and reliable identification of CNV is still important to fully understand the effect of CNV on genetic diversity and background of complex diseases. SNP marker has been used frequently to detect CNVs, but the analysis of SNP chip data for identifying CNV has not been well established. We compared various normalization methods for CNV analysis and suggest optimal normalization procedure for reliable CNV call. Four normal Koreans and NA10851 HapMap male samples were genotyped using Affymetrix Genome-Wide Human SNP array 5.0. We evaluated the effect of median and quantile normalization to find the optimal normalization for CNV detection based on SNP array data. We also explored the effect of Robust Multichip Average (RMA) background correction for each normalization process. In total, the following 4 combinations of normalization were tried: 1) Median normalization without RMA background correction, 2) Quantile normalization without RMA background correction, 3) Median normalization with RMA background correction, and 4) Quantile normalization with RMA background correction. CNV was called using SW-ARRAY algorithm. We applied 4 different combinations of normalization and compared the effect using intensity ratio profile, box plot, and MA plot. When we applied median and quantile normalizations without RMA background correction, both methods showed similar normalization effect and the final CNV calls were also similar in terms of number and size. In both median and quantile normalizations, RMA backgroundcorrection resulted in widening the range of intensity ratio distribution, which may suggest that RMA background correction may help to detect more CNVs compared to no correction.

• 한국콘텐츠학회논문지
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• 제11권4호
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• pp.140-154
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• 2011

이 글의 목적은 개봉 당시 비평과 흥행 양면에 성공한 <다크 나이트>를 통해 할리우드 슈퍼히어로를 주인공으로 한 액션 스릴러를 연출적인 관점에서 분석하고자 하는데 있다. 크리스토퍼 놀란의 <다크나이트>는 과거 슈퍼히어로 액션물의 기본적인 내러티브 원리에 충실하면서도 그 주제의 진지함과 시각적 표현력에 있어 한 단계 업그레이드된 명품 액션스릴러라고 할 수 있다. 연출 분석은 크게 내용과 형식으로 나뉜다. 내용에 있어서는, 선악의 존재론적 딜레마를 다룬 주제, 과거 배트맨 시리즈보다 깊고 강해진 캐릭터, 5막 구성, 특히 조커의 게임을 활용한 극적 구성, 그리고 다양한 아이러니와 모티프 활용이 돋보인다. 형식에 있어서는 아이맥스 카메라의 효과적인 활용, 특히 카 체이스와 격투액션 등의 액션 연출이 뛰어나다. 편집, 음악, 미술 역시 전편을 뛰어 넘는다. 이 작품이 높이 평가받을 수 있었던 가장 큰 요인은 슈퍼히어로의 액션스릴러라는 블록버스터에 철학적인 주제를 깊이 있게 담아내는데 성공했다는 점이다. 무엇보다도 오랜 역사를 거친 할리우드의 슈퍼히어로 전통과 액션 스릴러의 진화된 기술력이 정점에 이른 시점에 놀란 감독이 뛰어난 연출력이 영화적 스타일과 극적으로 조화를 이뤘기에 가능했던 것이라고 본다.

• 한국콘텐츠학회논문지
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• 제11권12호
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• pp.162-170
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• 2011

이 논문의 목적은 <드래곤 길들이기>를 통해 성공한 할리우드 애니메이션을 연출적인 관점에서 분석하고자 하는데 있다. 크리스 샌더스와 딘 데블로이스의 >드래곤 길들이기>는 모험, 코미디, 판타지, 가족물의 기본적인 내러티브 원리에 충실하면서도 그 주제의 전달과 시각적 표현력에 있어 상당수준의 완성도를 보인 애니메이션이라고 할 수 있다. 연출분석은 크게 내용과 형식으로 구분한다. 내용적인 측면에서는 가족물로써 부자간의 간극을 다룬 주제를 바탕으로 서사구조와 주요 캐릭터 설정, 플롯 속의 아이러니, 캐릭터성과 대중성이 도드라진다. 형식적인 면에서 자본력을 바탕으로 한 조명과 특수효과, 디자인과 레이아웃, 3D 기술과 입체 카메라 기법 역시 뛰어나다. 이 작품이 높이 평가 받을 수 있는 가장 큰 요인은 흥행과 대중성을 지키면서도 거부감없이 철학적인 주제를 성공적으로 담아냈다는 것에 있다. 또한 기획에 많은 인력이 필요하기에 시스템적으로 운영되지만 감독의 뛰어난 연출력이 있었기에 가능했다고 본다.

• 현장농수산연구지
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• 제22권2호
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• pp.59-67
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• 2020

본 연구는 전남 고흥 명천·계도 양식어장에서 2003년 2월부터 7월까지 완도와 백령도산 다시마 종묘를 이식, 시험양식을 실시하였다. 다섯 가지 환경 조건(수온, 염분, 총질소, 총인, 부유물질)과 두 가지 형질(엽장, 엽중량)을 매월 측정하였다. 이 데이터를 이용하여 성장 패턴, 형질간의 상관관계 및 PCA를 분석하는데 이용하였다. Box plot은 성장 패턴을 확인하기 위해 사용하였고, 형질들 간의 상호관계를 파악하기 위해 산점도, 회귀 계수 및 상관 계수를 이용하였다. 주성분 분석 결과 명천·계도 양식어장의 총 분산의 91.4%, 90.5% 이상을 제2주성분으로 설명할 수 있었다. 주성분분석(PCA)으로 두 어장에서 엽장과 엽중량의 성장에 가장 크게 영향을 주는 환경변수는 수온과 부유물질로 나타났다. 두 품종 모두 명천 어장보다 계도 어장에서 성장이 빨랐고, '백령도' 품종이 '완도' 품종보다 성장이나 중량에서 더 우수하였다.

• 한국지반신소재학회논문집
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• 제16권4호
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• pp.191-210
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• 2017

The concern study, present the results of experimental study on the performance of deep excavation by using image processing technique particle image velocimetry (PIV). The purpose of present study is to check the application of PIV for the successive ground deformation during deep excavation. To meet the objectives of concern study, a series of reduce scale model test box experiments are performed by considering the wall stiffness, ground water table effect and ground relative density. The results are presented in form of contour and vector plots and further based on PIV analysis wall and ground displacement profile are drawn. The results of present study, indicate that, the PIV technique is useful to demonstrate the ground deformation zone during the successive ground excavation as the degree of accuracy in PIV analysis and measured results with LVDT are within 1%. Further the vector and contours plot effectively demonstrate the ground behavior under different conditions and the PIV analysis results fully support the measured results.

• 대기
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• 제24권3호
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• pp.419-432
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• 2014

An assessment of typhoon intensity predictability of numerical models was conducted to develop the typhoon intensity forecast guidance comparing with the RSMC-Tokyo best track data. Root mean square error, box plot analysis and time series of wind speed comparison were performed to evaluate the each model error level. One of noticeable fact is that all models have a trend of error increase as typhoon becomes stronger and the Global Forecast System showed the best performance among the models. In the detailed analysis in two typhoon cases [Danas (1324) and Haiyan (1330)], GFS showed good performance in maximum wind speed and intensity trend in the best track, however it could not simulate well the rapid intensity increasing period. On the other hand, ECMWF and Hurricane-WRF overestimated the typhoon intensity but simulated track trend well.

• 한국안전학회지
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• 제25권4호
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• pp.61-67
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• 2010

Though "Zero Accident Campaign" is a desirable campaign for industrial accident prevention and reducing victims, the number of industrial enterprises has been decreasing abruptly in recent years. One of the reasons for this phenomenon may be attributed to irrationality of 'target accident-free time periods' established by related organizations. This study was carried out to develop a new rational scheme for the campaign. Therefore, for a numerical basis, Poisson process was introduced, and problems induced by current target periods were analyzed mathematically one by one. As a result, it was verified that current target periods were uneven since the probability that manufacturing plants get them would be different form industry to industry. To develop countermeasures, a brand new method were suggested in this research. The first characteristic was that group classification should be based upon average accident rates resulted from past several years, and the second was that adjustment probability which can make the target acquisition probability even. About the suggested method, a questionnaire survey was conducted. To make a conclusion, most manufacturing plants agreed with the suggested method such high affirmative portion that the suggested method would be expected to help promote the campaign again.

• Journal of Periodontal and Implant Science
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• 제30권2호
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• pp.483-490
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• 2000

The aim of this study was to analyze the reliability of an ultrasonic device(SDM) measuring soft tissue thickness in relation to tooth position, and to find factors which can influence the reliability. The results showed that 1. measurement error was the largest in the maxillary second molar position and the smallest in the mandibular central incisor position. 2. in a box whisker plot, the difference between two measurements was most widely distributed in molar positions. 3. in Pearson correlation analysis, the relationship between two measurements was the highest in the maxillary lateral incisor position and, the lowest in the maxillary second molar, mandibular first and second premolar position. 4. a stepwise multiple regression analysis could explain the difference of two measurements with various independent variables in 29.7% (P<0.0001). Gingival thickness was the only variable influencing the measurement difference in a statistically significant level(P<0.0001). It can be concluded that its high reliability, ease to use and patient comfort justified the application of the SDM in measurement of soft tissue thickness.