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누가 민주당을 이끄는가?: 제112대 미국 하원 민주당 네트워크의 유력자 연구
방성수 ( Sung Soo Bang ) 서울대학교 한국정치연구소 2015 韓國 政治 硏究 Vol.24 No.2
이 논문은 제112대 미국 하원 민주당의 트위터 네트워크를 분석, 뉴 미디어를 통해 새로이 창출된 정당의 디지털 정치 네크워크 상의 유력 의원들을 규명했다. 독자적인 인터넷 서버와 별도의 트위터 API 프로그램 등 빅 데이터 자료 수집 방법에 입각해 미국 하원 의원들의 트위터 이용 데이터 280여 만 개를 수집한 뒤 민주당 소속 의원들의 네트워크를 따로 추출했다. 이 연구는 3개의 네트워크 중심성 척도를 사용하여 권위형, 야심가형, 조정자형으로 민주당 의원들의 리더십을 나누고, 유형별로 상위 30위까지의 유력자들을 판별했다. 이를 통해 여성, 소수 인종, 캘리포니아 출신들이 민주당 트위터 네트워크 상에서 핵심 지위에 포진하고 있음을 확인했다. 이 연구는 민주당 대표와 원내 총무 등 오프라인상의 유력 당직자들이 디지털 네트워크상에서도 여전히 유력자의 지위를 차지하는 온 라인과 오프라인 지위의 동조 현상을 확인하는 한편, 당내 차세대 지도자 군, 혹은 중진들로 분류될 수 있는 정당 네트워크상의 숨은 지도자들의 면면을 제시했다. Drawing from social network analysis, this study investigates Democratic Party’s Twitter legislative network of the 112th U.S. House of Representatives. Investigating 2.8 million twitter data gathered by a customized Internet server and Twitter API program, this study classifies three types of digital influentials within the Democratic Party Network, the authorities, the ambitious, and the modulators, using three measurements developed by the social network theory. Findings demonstrate that representatives from ethnic minorities and female lawmakers dominate the Democratic Party’s core network. Findings also indicate that high-ranking democrats also ranked on top 30 lists, which show a coupling relationship between online and offline relationships. Further, this research identifies several “latent influentials” of the Democratic digital network, which reveal a part of hidden party politics within the major party in the U.S. politics.
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한반도 동남부에 분포하는 제3기 퇴적분지에 대한 중력탐사
민경덕,방성수,현용호,Min, Kyung Duck,Bang, Sung Soo,Hyun, Yong Ho 대한자원환경지질학회 1992 자원환경지질 Vol.25 No.2
The gravity measurement has been conducted at 53 and 34 stations with an interval of 1~1.5 km along the national roads of about 47 km and 34 km running from Duksungri to Yangpori and from Angangri to Byungpori, Kyungsangbookdo, respectively. The subsurface geology and geologic structure of Tertiary Pohang and Janggi basins along two survey lines are interpreted quantitatively by applying Fourier series and Talwani methods for Bouguer gravity anomaly. The depths of Conrad discontinuity vary from 11.8 to 12.5 km and 11.5 to 13.2 km along the survey lines between Duksungri and Yangpori, and Angangri and Byungpori, respectively. The depths of pre-Cambrian Gneiss complex underneath Kyungsang Supergroup vary from 3.8 to 4.2 km and 3.8 to 4.6 km along the survey lines between Duksungri and Yangpori, and Angangri and Byungpori, respectively. Massive granite bodies which are not exposed along the survey line between Duksungri and Yangpori are distributed on a large scale at the subsurface between Duksungri and Ochun, and Daegokri and Yangpori. Along the survey line between Angangri and Byungpori, it is exposed at Angangri, and extends underneath Chungrimdong, Pohang city. Andesite is distributed on a small scale underneath Pohang city and Ochun. The thicknesses of Tertiary Yonil and Janggi Groups are 0.2~0.9 km and 0.1~0.5 km, respectively. The Tuffaceous rocks which are the lowest formation of Tertiary sedimentary rocks are distributed with the thickness of 0.2 km at the surface and between Kyungsang Supergroup and Yonil or Janggi Groups. The Yonil and Janggi Groups are in fault contact by a fault running through Ochun and Chungrimdong, Pohang city. Two other faults are newly found near Heunghae-eup and Hyungsan river.
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SWMM을 활용한 농업용수 네트워크 모형 단순화 분석 - 만대 저수지 사례를 중심으로 -
안성수 ( An Sung-soo ),방나경 ( Bang Na-kyoung ),이종서 ( Lee Jong-seo ),방성수 ( Bang Sung-soo ),남원호 ( Nam Won-ho ),김한중 ( Kim Han-joong ) 한국농공학회 2022 한국농공학회논문집 Vol.64 No.1
This study established a water supply network based on the operation case of Mandae Reservoir in Yanggu-gun, Gangwon-do, to analyze the efficient distribution and management of agricultural water supplied from the reservoir to irrigation areas using the hydraulic analysis model SWMM. In order to construct a model to analyze the water canal network, network conditions needs to be simplified, and in particular, excessive detail or simplification of the irrigation area can lead to errors in the analysis results. Therefore, the effect of the water canal network model was analyzed by simulating the appropriate simplification process step by step. The results of simplifying the actual block shape of the analysis target area using SWMM showed that there was no significant difference in the results even if 7 lots were simplified to 2. Also, it was found that the construction and analysis of a simplified network model were reliable when the excess quantity was 2% or more compared to the required quantity for each case of analysis of the paddy field.
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