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김승리,이충욱,박병곤,차상목,이재우,이병철,김동진,이용석,구재림,Kim, Seung-Ri,Lee, Chung-Uk,Park, Byeong-Gon,Cha, Sang-Mok,Lee, Jae-U,Lee, Byeong-Cheol,Kim, Dong-Jin,Lee, Yong-Seok,Gu, Jae-Rim 한국천문학회 2012 天文學會報 Vol.37 No.2
한국천문연구원에서는 2009년부터 외계행성 탐색시스템(KMTNet; Korea Microlensing Telescope Network) 개발 사업을 수행하고 있다. 이 사업에서는 중력렌즈 방법이나 별표면 통과(Transit) 방법으로 외계행성을 탐색하기 위하여, 1.6m 광학 망원경과 3.4억 화소의 모자이크 CCD 카메라로 구성된 2도x2도의 광시야 관측시스템을 제작하고 있다. 이 시스템은 2014년까지 남반구의 칠레 CTIO(1호기), 남아공화국 SAAO(2호기), 호주 SSO(3호기)에 설치될 예정이다. 우리은하 벌지 영역을 24시간 연속 모니터링 관측하여 외계행성과 변광천체를 탐색하는 것이 핵심연구주제이다. 광시야 망원경 1호기는 미국 Tucson에 건설된 관측시설 Prototype에 설치하여 공장시험을 수행하고 있다. 망원경의 지향(pointing) 정밀도와 Lucky Imaging 방법을 이용하여 얻은 광시야 광학계 성능 등 공장시험 결과를 보고할 것이다. 또한 핵심연구주제 이외의 관측시간을 활용할 2차 연구주제를 공모하여 심사한 결과를 제시할 것이다. 아울러 모자이크 CCD 카메라 제작, 남반구 관측소 설치 준비, 대용량 자료처리 시스템 개발, 남반구 관측소 운영 계획 등 전반적인 사업 현황과 계획을 발표할 것이다.
김승리,차상목,이충욱,김동진,박병곤,이용석,박홍수,경재만,천무영,KIM, SEUNG-LEE,CHA, SANG-MOK,LEE, CHUNG-UK,KIM, DONG-JIN,PARK, BYEONG-GON,LEE, YONGSEOK,PARK, HONG SOO,KYEONG, JAEMANN,CHUN, MOO-YOUNG 한국천문학회 2016 天文學論叢 Vol.31 No.3
We have constructed a wide-field photometric survey system called as the Korea Microlensing Telescope Network (KMTNet) in 2015. It consists of three 1.6 m optical telescopes equipped with mosaic CCD cameras. Four 9k CCDs were installed on the focal plane of each telescope. In this paper, we present the crosstalk analysis of the KMTNet mosaic CCD images. The crosstalk victims caused by bright sources were visible at eight sub-images obtained through different readout ports of each CCD. The crosstalk coefficients were estimated to be several tens of $10^{-4}$ in maximum, differing from sub-image to sub-image, and the non-linearity effect certainly appeared at the victims made from saturated sources. We developed software functions to correct the crosstalk effect of the KMTNet CCD images. The software functions showed satisfying results to remove clearly most of the crosstalk victims and have been implemented in the KMTNet image processing pipeline since 2015 September.
김승리,성현철,육인수,노진형,KIM SEUNG-LEE,SEONG HYEON-CHEOL,YUK IN-SOO,NOH JIN-HYUNG 한국천문학회 1998 天文學論叢 Vol.13 No.1
We installed windscreen at the BOAO 1.8m telescope dome, in order to reduce the degradation of image Quality under strong wind larger than 8m/sec. The windscreen was designed on the basis of that installed at the MSSSO 2.3m telescope dome in Australia. We developed control system (remote control and user program) of the windscreen, being able to operate the windscreen at observation room. We tested the performance of the windscreen under strong wind of 6-15m/see. Tracking error of the telescope, especially in altitude-axis, was greatly decreased when the windscreen was used. Standard deviation of the error was estimated to be less than 0.3arcsec, which has little effect on image quality.
김승리,박남규,표태수,성환경,이시우,Kim, Seung-Ri,Park, Nam-Gyu,Pyo, Tae-Su,Seong, Hwan-Gyeong,Lee, Si-U 한국천문학회 1993 天文學論叢 Vol.8 No.1
We developed a real-time CCD photometric program for IBM PC compatibles. This program can perform several functions necessary for CCD photometry such as telescope control. filter rotation, CCD camera control and data acquisition, two-dimensional image processing, simple aperture photometry and automatic differential photometry. The image processing of a spiral galaxy M51 observed with the SNU 61cm reflector shows a well developed spiral structure. Simple aperture photometric results of 14 stars in open cluster NGC 6871 almost accorded with those from IRAF/APPHOT. And we could confirm the light variation of eclipsing binary EM Cep by simultaneous automatic differential photometry of 7stars in NGC 7160. Due to the excellence in the precision and efficiency of automatic differential photometry using CCD. this program is very useful for the study of small amplitude ${\delta}$ Sct type variables and of the photometric stability of B ${\sim}$ F type stars.
김승리,경재만,권순길,윤재혁,KIM SEUNG-LEE,KYEONG JAE-MANN,KWON SUN-GIL,YOUN JAE-HYOUK 한국천문학회 2001 天文學論叢 Vol.16 No.1
We developed an observation program for a 2K CCD camera, which was newly attached at the SOAO (Sobaeksan Optical Astronomy Observatory) 61cm telescope. The program was designed to control the telescope as well as the CCD camera and to monitor the CCD image quality, with very easy under the window-based graphical user interface (GUI). Furthermore, applying the automated differential photometric algorithm, we can obtain the instrumental magnitudes of several variable and comparison stars in real-time. Simultaneous photometry enables us to get precise differential magnitudes of variable stars even if the weather condition is not photometric. This new observation system has been using for many astronomical observations from September, 2001.
항공사 내부서비스품질, 직무만족, 고객만족에 관한 연구
김승리(Seung-Lee Kim),조영신(Young-Shin Cho) 韓國컴퓨터情報學會 2016 韓國컴퓨터情報學會論文誌 Vol.21 No.3
In this study, the basic concept of service profit chain was introduced based on the existing studies related to service quality of airline ground crew to find out how are customer satisfaction influenced by factors related to employees who provide service quality to the customers, such as internal service quality and job satisfaction. The data of this study was collected by questionnaire and based on airline ground crews and Gimpo international airport users. A total of 190 of airline ground crew and 273 of passengers validity sample was analyzed a frequency analysis, reliability analysis, exploratory factor analysis and correlation coefficient analysis from SPSS 21, a hypothesis through out confirmatory factor analysis and structural equation modeling from AMOS 7.0. As a result of the analyses, it was found that the models was appropriate in proving the hypotheses on interrelationships among internal service quality, job satisfaction and customer satisfaction. Overall, finding of this study enhance the theoretical progress on the experiential concept in walking tour and offer important implication for airline industry marketers.
공항 이용객의 혼잡지각이 감정적 반응과 재방문의사에 미치는 영향에 관한 연구
김승리(Seung-Lee Kim),인옥남(Ok-Nam In) 한국컴퓨터정보학회 2015 韓國컴퓨터情報學會論文誌 Vol.20 No.5
본 논문에서는 국제공항 이용객 혼잡지각, 감정적 반응 및 재방문의사 사이의 영향관계 관계 검증 방법을 제안한다. 본 연구를 통해 국제공항의 시설적 혼잡성은 이용객의 부정적 반응 및 재방문의사에 유의한 영향관계가 형성됨을 알 수 있으며, 이용객의 인적 혼잡성과 긍정적인 감정반응은 재방문의사에 유의한 영을 미치는 것으로 나타났다. 이상의 결과를 종합하면 국제공항 이용객의 인적 혼잡지각과 긍정적 감정반응인 고마움, 즐거움, 편안함, 친근감, 만족감, 믿음감 등은 이용객의 긍정적인 재방문의사와 타인 추천 등에 영향을 미치는 것으로 나타났다. 본 연구에서는 SPSS 21 통계 프로그램을 이용하여 빈도분석, 요인분석, 신뢰도분석, 상관관계분석을 실시하였으며, 또한 AMOS 7.0을 활용하여 공분산구조분석(Covariance Structure Analysis)의 확인적 요인분석과 모형검증(Model Test)을 실시하였다. The object of this study is finding out the relational effect of perceived crowding of international airport on emotional response and revisit intention. The data of this study was collected by questionnaire and based on Incheon international airport visitors. A total 260 validity sample was analyzed a frequency analysis, reliability analysis, exploratory factor analysis and correlation coefficient analysis from SPSS 21, a hypothesis through out confirmatory factor analysis and structural equation modeling from AMOS 7.0. As a result of this study, visitors’ human perceived crowding of international airport and positive emotional response showed a significant effects on revisit intention.
국제공항 방문객의 지각된 가치가 만족도와 재방문의도 및 추천의도에 미치는 영향
김승리(Seung-Lee Kim) 한국컴퓨터정보학회 2016 韓國컴퓨터情報學會論文誌 Vol.21 No.7
This study aims to examine how international airport visitors perceived value effects on their satisfaction, revisit and recommendation intention. To archive the research goal 288 questionnaires were collected from Incheon international airport and was analyzed a frequency analysis, reliability analysis, exploratory factor analysis and correlation coefficient analysis from SPSS 21, a hypothesis through out confirmatory factor analysis and structural equation modeling from AMOS 7.0. As a result of the analyses, it was found that the models was appropriate in proving the hypotheses on interrelationships among perceived value, satisfaction and revisit & recommendation intention. First, perceived value is factorized as acquisition value, emotion value, monetary value and social value. Second, all factor of perceived value turned out to have affirmative effects on international airport visitors" satisfaction. Third, international airport visitors satisfaction turned out to have affirmative effects on revisit and recommendation intention. Overall, finding of this study enhance the theoretical progress on the experiential concept in international airport and offer important implication for international airport industry.