• Journal of the Korean Data and Information Science Society
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• 제22권6호
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• pp.1183-1197
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• 2011

베이즈 법칙에서는 사전확률과 우도가 주어지고 어떤 실험결과가 일어났을 때 사후확률을 계산한다. 이러한 사후확률의 계산 문제를 엑셀 매크로를 이용하여 쉽게 계산할 수 있다. 또한 일련의 독립적이고 연속적인 실험결과에 따르는 사후확률도 편리하게 계산할 수 있다. 특히, 엑셀 매크로를 작성하면 작업창에서 반복된 계산의 입력과 출력이 쉽게 이루어진다. 본 논문에서는 베이즈 법칙의 활용을 위해서 엑셀 매크로를 작성하고 그것의 사용 예를 들었다.

• 천문학회보
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• 제44권2호
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• pp.79.2-79.2
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• 2019

We introduce Maemi Dual Field Telescope System (MDFTS) which is newly installed at Kyung Hee Astronomical Observatory (KHAO). MDFTS consists of two telescope tubes (40cm and 10cm), whose observing fields are aligned with different field of view, 15' x 11' and 83' x 63' respectively. We present the specification of instruments (telescope, mount, camera, and filter system) and the observation environment of KHAO. We expect that MDFTS can be used for transient survey e.g. Intensive Monitoring Survey of Nearby Galaxies (IMSNG). Based on observations conducted so far, the limiting magnitude of 40cm telescope in B-band is B_lim ~ 16 mag at 5-σ detection with 150 seconds total integration time under dark and clear observing condition. Also the integrated observing software for MDFTS, KAOS40 is now under developing.

• 한국통신학회논문지
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• 제33권2C호
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• pp.184-191
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• 2008

한의학 기반 진단 방법은 서양의학과 달리 병원에 내원하지 않고 네트웍이나 각종 통신 장비 등을 통한 질병진단이 가능하다. 특히 한의학의 뛰어난 진단 방법 중 하나인 망진 기법을 적용한 진단 기술 개발은 초고령화사회 진입에 따른 국가적 부담인 의료비 절감에 크게 기여할 수 있는 방법으로 여겨지고 있다. 이때 망진법에서 가장 중요한 것이 병색을 살피는 일 즉, 찰색인데 이를 기기로 구현할 수 있는 방법론의 개발과 적용 가능한 시스템의 구축이 가장 중요한 일이 된다. 이를 위해 본 논문에서는 망진 중 찰색 구현을 위한 연구를 행하였다. 특히 통상 인체의 주요 장기인 오장은 오색으로 병색이 안면에 나타나므로 이 오색을 구현할 수 있는 색 좌표계의 정립이 가장 중요한 일이 되며 이를 위해 색 분석을 실행하여 진단기술 개발에 있어서의 디지털 색 체계 분석을 위한 실험을 진행하였다. 끝으로 실험을 통해 찰색에 필요한 오색 추출에 맞는 디지털 색 체계를 선정하고 이를 통한 실제 피부색 분석 및 비교에 대한 실험을 수행하여 찰색 구현을 위한 디지털 색체계의 가장 적합한 색 좌표계가 어떤 것인지를 제시하고자 한다.

• 한국농공학회:학술대회논문집
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• 한국농공학회 2002년도 학술발표회 발표논문집
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• pp.5-8
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• 2002

Daily potential evapotranspiration was estimated using meteorological data which are observing regularly such as rainfall, temperature, humidity, wind speed, and duration of sunshine. Penman method is used practically in estimating evapotranspiration at present, and its regional coefficients were derived at 19 stations in the Korean Peninsular. Because meteorological data are observing at 77 stations under the Korea Meteorological Administration, the methodology of estimating evapotranspiration using meteorological data will be able to be applied in more regions than Penman method.

• 천문학논총
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• 제30권2호
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• pp.651-653
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• 2015

Compared with traditional analog system, the Chinese VLBI Data Acquisition System (CDAS) is a digital one with better bandpass and wider bandwidth which allow weaker sources to be detected and measured by VLBI techniques. After optimizing and verifying the performance of CDAS in wide bandwidth observing mode, we performed an experiment by observing 85 weak sources along the ecliptic with Chinese VLBI stations located at Shanghai, Kunming and Urumqi. The capability of CDAS has been demonstrated for the detection of weak sources with improved sensitivity.

• 대기
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• 제11권3호
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• pp.9-11
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• 2001

• 한국실내디자인학회논문집
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• 제21권2호
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• pp.92-100
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• 2012

This study was to examine the pattern of visual interpretation in the process of eye-tracking. I categorized the subjects' observation inclination for analysis so that I could find out which element the user observing the space concentrated and explored. First, for 2 minutes of observation, there occurred 171 times of eye-fixations and 9.8 times of observation frequency on average, which showed that the subject, through this observing fixation, spent 44.5% of the entire time performing the visual activity in order to acquire the "visual understanding" of the lobby-space. Second, I found out that there was a consistent observation type as the time passed. I could categorize the subjects observing the space into 6 concentrating types and 3 discontinuing ones of observation types, which category can be utilized as data for analyzing the subjects' characteristics at space-observation. Third, the type, which was so intensive as to get the visual understanding on the space, was mostly of the case that (1) the subject had a kind of high degree of observation type, exploring the space, again having high degree of the observation type [Type A], (2) the subject repeated the concentration from the early part to the latter [Type C], which can be considered to be the observation type generally shared. Fourth, in the case of observing the space, 45.8% of the subjects showed a high rate of concentration at the time of starting the observation and in less than two minutes. The subjects of type A can be considered to understand the space visually by distinctively repeating the concentration and exploration.

• 한국가정과교육학회지
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• 제17권4호
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• pp.87-100
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• 2005

본 연구는 중학교 가정 교과 수업의 실제 상황을 관찰하고 객관적으로 기술함으로써 가정 교과 수업이 어떠한 조직과 요소로 구성되어 있으며 어떠한 내용으로 전개되는지에 대한 보편적인 경향을 파악하고자 하였다 이와 같은 목적을 달성하기 위해서는 실제 수업 현장에서 이루어지는 '사실적이고도 자연스러운' 장면을 수집해야 하므로 관찰자의 존재 자체가 관찰 대상으로 하여금 부자연스러운 행위를 유발할 수 있는 관찰자 효과(observer effect)를 최대한 배제하고자 실제 수업 장면을 담은 비디오 자료를 분석하였다. 본 연구와 같이 실제 가정 교과 수업을 참관하는 것과 동일한 효과를 줄 수 있는 사실적인 자료를 제공한다면 교사들은 자기 수업을 성찰하여 교수 능력 향상에 기여할 수 있을 것이다. 또한 가정 교과 수업이 이루어지는 현장과 가정 교과교육 연구자들 사이의 간극을 좁혀주는 매개 역할을 하여 실제와 이론의 접목을 촉진시키는 등 효과적일 가정 교과 수업전략 마련을 위한 의미 있는 자료를 제공할 수 있을 것이다.

• 대기
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• 제18권4호
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• pp.299-316
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• 2008

The intensive upper-air observation network was organized over southwestern region of the Korean Peninsula during the Korea Enhanced Observing Program in 2005 (KEOP-2005). In order to examine the effect of additional upper-air observation on the numerical weather forecasting, three Observing System Experiments (OSEs) using Korea Local Analysis and Prediction System (KLAPS) and Weather Research and Forecasting (WRF) model with KEOP-2005 data are conducted. Cold start case with KEOP-2005 data presents a remarkable predictability difference with only conventional observation data in the downstream and along the Changma front area. The sensitivity of the predictability tends to decrease under the stable atmosphere. Our results indicates that the effect of intensive observation plays a role in the forecasting of the sensitive area in the numerical model, especially under the unstable atmospheric conditions. When the intensive upper-air observation data (KEOP-2005 data) are included in the OSEs, the predictability of precipitation is partially improved. Especially, when KEOP-2005 data are assimilated at 6-hour interval, the predictability on the heavy rainfall showing higher Critical Success Index (CSI) is highly improved. Therefore it is found that KEOP-2005 data play an important role in improving the position and intensity of the simulated precipitation system.

• 한국실내디자인학회논문집
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• 제15권4호
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• pp.123-128
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• 2006

The purpose of the research is to estimate the amount of a color image reaction variation by changing areas in order to design the method to reduce an error about the color sample when it is applied in the real situation. The summary of the results acquired in this research is as followed. (1) With fixed observing distance of 1m, we observed that the value and chroma of each color object became higher as sight angle was increased as $2^{\circ},\;10^{\circ},\;and\;30^{\circ}$, even though the variation ratio was different. (2) With fixed sight angle of 10, we observed that the value and chroma of each color object becane higher as observing distance was changed from 1m to 3.3m, even though the variation ratio was different. (3) With same area, we observed that the values and chromas of each color object in the conditions of $1m-30^{\circ}\;and\;3.3m-10^{\circ}$ were almost same. (4) When the area became larger, the subjects tended to feel that colors were bright and clear with the increase of tone. In all the colors, the variation of a color reaction in chroma is higher than those in value. In future, we can observe the limit in applying to colors in the architecture by identifying the tendency of the color change according to the area change qualitatively.