다중사용자 환경에서 공간적인 다이버시티를 이용하는 초광대역 통신시스템의 성능 비교분석

백선영,안진영,이성신,김상준,Baek, Sun-Young,An, Jin-Young,Lee, Sung-Sin,Kim, Sang-Choon 한국정보통신학회 2007 한국정보통신학회논문지 Vol.11 No.11

본 논문에서는 다중 수신안테나가 제공하는 공간적인 다이버시티를 이용하여 고속의 데이터 전송률을 달성하기 위한 초광대역 통신시스템의 성능 향상에 대해 연구한다. 다중사용자 간섭 신호들이 존재하는 환경에서 2PPM(Binary Pulse Position Modulation) THMA(Time Hopping Multiple Access) UWB 시스템의 성능을 이론적으로 분석하기 위해서 다중 수신안테나를 통해서 수신되는 공간적인 신호들을 결합한 후의 수신 SINR 표현식을 유도하고 BER 성능을 수치적인 시뮬레이션에 의해 평가된다. 또한 2PPM에 의한 시스템의 성능 결과들을 2PAM(Binary Pulse Amplitude Modulation) THMA UWB 시스템의 이론적인 성능 결과와도 비교한다. 공간적인 다이버시티가 2PPM과 2PAM THMA UWB 시스템의 성능에 미치는 영향을 분석한다. 다중 수신안테나의 수가 증가함에 따라 BER 성능이 향상됨을 보인다. 또한 다중사용자 간섭 신호들이 존재할 때 2PAM THMA UWB 시스템의 성능이 2PPM THMA UWB 시스템의 성능보다 상당히 우수하다는 것을 확인한다. In this paper, the performance improvement of ultra-wideband(UWB) communications system to achieve high-data-rate using spatial diversity provided by multiple receive antennas is investigated. We derive the expression for the received SINR after spatially combining through multiple receive antennas and evaluate the bit error rate(BER) performance by numerical simulation. We also compare the performance results in the case of 2PPM systems with the theoretical performance results in the case of 2PAM THMA UWB systems. The impacts of spatial diversity on the performance of 2PPM and 2PAM THMA UWB systems are analyzed. It is shown that the BER performance is improved as the number of receive antennas increases. Also, it is observed that in the presence of multiple user interference signals, the performance of 2PAM THMA UWB systems is considerably superior to that of 2PPM THMA UWB systems.

1930년대 김종량의 H자형 한일절충식 도시주택

백선영,전봉희,Baek, Sun-Young,Jeon, Bong-Hee 한국건축역사학회 2009 건축역사연구 Vol.18 No.5

This stydy investigates H-shaped houses in 1930s and examines the characters and meanigs of Kim, Jong-Ryang's H-shaped houses as a new trial to urban Hanok of those days. He, who was concerned about the housing problem of Seoul, made an attempt to make various types of dwellings. Among them, this study focuses on Japanese-Korean Style H-shaped houses in Samcheong-dong. As the alternative housing type against other urban Hanok of Seoul in 1930s, the H-shaped houses of Kim, Jong Ryang had characters as follows : 1) H-shaped houses has two special characters. First, the whole space of a single house can be divided into a left region and a right region. Second, it can be divided to a front region and a rear region. In his H-shaped houses, the left/right division was expressed as folding of space-layers in parallel with urban streets. The front/rear division was used as classification of main-living space and sub-living space. 2) KJR's H-shaped Japanese-Korean Style houses were proved to be designed as urban housing against the extreme housing shortage of Seoul in 1930s. 3) His houses however were not accepted broadly as a urban house type because the construction cost of those was higher than an average and the element of Japanese style house was not adapted to Korea. Kim, Jong-Ryang's trial is valuable because it was the rare case of realization of many discourses as defects of existing house type. With more rigorous investigations on KJR's experiment in modern house type, we could understand the housing condition of Seoul in 1930s and modern urban houses more than before.

서울 한옥주거지의 1970년 이후 변이에 영향을 미치는 주거지 구조와 한옥 유형의 요인

백선영(Baek Sun-Young),안건혁(Ahn Kun-Hyuck) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.4

The purpose of this study was to investigate the transformation of Hanok residences and the factors involved in the transformations. For this requirement, the data which were obtained by the disused land registration maps, the aerial photographs, the land register and the registered building data of 1,398 lots in 12 Hanok residences was used. The results of this study were as follows; First, degree of totality and connectivity of road of districts outside a fortress is bigger than districts inside a fortress because of Land Readjustment Project. Second, 65.5% of Hanok disappeared and 11.2% of lots decreased between 1970 and 2011. Third, the factors involved in the demolition of Hanok were 2 factors of road(degree of connectivity and width), 2 factors of lot(area and the length of access to road) and 3 factors of Hanok type(shape, configuration and approach). Fourth, the factors involved in transformation of lot were 3 factors of lot(area, degree of standardization and the length of access to road) and 2 factors of Hanok type(shape and configuration).

해럴드 러그(Harold Rugg)의 사회과 교육과정 구성과정에 대한 고찰과 그 함의

백선영(Sun Young Baek),구정화(Jeong Hwa Koo) 한국사회과교육연구학회 2020 사회과교육 Vol.59 No.2

이 연구는 초기 미국 사회과 설계자 중 한 명인 Harold Rugg의 사회과교육과정에 대한 철학과 사회과 교재 개발과정을 재조명하고, 오늘날 사회과교육의 개선 방향을 탐색하고자 한다. 러그는 쟁점 중심 사회과의 시초 또는 진보적인 교육과정으로 기존 연구자들의 주목을 받았던 학자이다. 이전의 연구는 주로 러그의 교육과정의 결과물인 사회과 교재의 내용 구성에 주로 초점을 두고 있어 상대적으로 러그의 사회과 교육과정 개발과정과 구성 원리에 대한 논의는 부족했다. 따라서 본 연구에서는 러그의 사회과 교육과정에 대한 인식과 사회과 교재의 개발과정에 어떤 특징이 있는지 살펴보았다. 이를 통해 사회변화에 따라 미래지향적인 교육내용 구성 방향에 대한 사회과 내 논리 구축의 필요성, 다양한 연구 방법을 통한 과학적이고 객관적인 교육내용 선정의 필요성, 학교 현장의 피드백을 반영할 수 있는 시스템과 교육내용의 적정성 검증을 제안하였다. The purpose of this study was to explore the legacy of Harold Rugg, one of the early American social studies educators. I analyzed the philosophy and textbook development process for social science education courses, and examined the direction of improvement in social science education today. Rugg is a scholar who has attracted attention from existing researchers for his controversial social studies or liberal curriculum. However, if you examine Rugg’s social and educational research history and educational theory as a whole, it has strong influence on the principles of development and composition of social and educational courses. Thus, this study examined Rugg’s perception of the social studies curriculum and its characteristics relative to the process of developing and organizing social studies and teaching materials. Based on this, he proposed a future-oriented direction for organizing education contents according to social changes. It is necessary to establish logic within society and to select scientific and objective educational contents through various research methods, to prepare a system that can reflect feedback from school sites, and to verify the appropriateness of educational content.

한옥주거지 필지구조 유형별 구성요소의 관계에 대한 시계열적 비교 분석

백선영(Baek, Sun-Young),안건혁(Ahn, Kun-Hyuk),양승우(Yang, Seung-Woo) 대한건축학회 2013 대한건축학회논문집 Vol.29 No.6

This study aims to analyze the correlation between composition factors of lot system types in Hanok Residential Area, Seoul classifying into tree-type and grid-type. The results are as follows : First, between 1970 and 2011 in all lot system types, the bigger the area of lot, the width of road and the connectivity of road is, the longer length of the part meeting the road is. Also, the bigger the width of road is, the bigger area of lot is. Second, tree-type lot system is much different from grid-type in 1970 in terms of the correlation between the standardization index of lot and direction of road and other factors in. Third, the correlation between composition factors in tree-type lot system has changed, while the correlation in grid-type has hardly changed after 1970. Fourth, as regards the correlation between composition factors, the distinction between lot system types is much larger than the diachrony of type.

역량 관련 국내 사회과교육 연구 동향 분석

백선영 ( Baek¸ Sun Young ) 한국사회과교육학회 2021 시민교육연구 Vol.53 No.4

본 연구는 사회과에서 이루어진 역량에 관한 논문을 분석하고, 연구의 현황과 특징을 파악하여 시사점을 도출하는 것을 목적으로 한다. 이를 위해 학술지에 게재된 논문 93편을 대상으로 연구 내용, 연구 방법, 연구 대상, 연구 자료에 따라 분석하였다. 분석 결과 연구내용 측면에서 역량의 의미와 교육과정 내용 구성과 같은 계획된 교육과정 측면에서의 연구와 국제비교 연구가 많았으며, 실제 수업 적용이나 평가와 같은 실행된 교육과정이나 경험된 교육과정에 대한 연구는 적었다. 연구대상 및 방법 측면에서는 문헌연구가 대부분이었으며 학생과 교사를 대상으로 한 연구가 부족한 편이다. 연구의 동향을 살펴보는 것으로 사회과에서 역량을 무엇으로 보고 있는지 도출하기는 어렵다. 하지만 사회과에서 역량을 교육과정 문서 수준에서 어떻게 구현해야하는지에 더 초점을 두고 있으며, 아직 역량기반 교육과정 실천 및 평가와 관련된 구체적인 연구는 여전히 부족한 상황임을 알 수 있다. 따라서 실효성 있는 역량기반 교육을 위해 실행된 교육과정과 경험된 교육과정 측면에서의 연구가 더 이루어질 필요가 있다. This study analyzed papers on competencies conducted in social studies. This is to derive implications by grasping the current status and characteristics of the study. To this end, 93 papers published in academic journals were analyzed according to the analysis criteria. As a result of the analysis, there were many studies in terms of the planned curriculum and international comparative studies. There were significantly few studies on the enacted curriculum or experienced curriculum. In terms of research subjects and methods, most of the studies were conducted on literature, and papers on students and teachers were insufficient. It is difficult to know what competencies are interpreted in social studies by examining the trends of research. However, social studies focuses more on how to implement competency at the document level. Therefore, further research needs to be conducted in terms of the curriculum enacted and the experienced curriculum for effective competency-based education.

1970년 이후 서울 한옥밀집지구내 한옥 멸실의 특징과 물리적 조건

백선영(Baek, Sun-Young),안건혁(Ahn, Kun-Hyuck) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.12

The purpose of this study was to investigate the character and the physical condition of destruction of Hanok by analyzing transformation of housing type in Hanok residence in Seoul since 1970. For this requirement, the data which were obtained by the disused land registration maps, the aerial photographs and the registered building data of 12 Hanok residence was used. The results of this study were as follows; First, in certain time and site, some housing types were predominant. Second, Hanok residence is the important detached house area in Seoul since 1930s. Third, Hanok lasted about 10 years longer than other housing type. Fourth, the area, the length of access to roads and the development of surroundings affected the occurrence of reconstruction of Hanok.

서울시 한옥밀집지구의 가치평가체계 구축에 관한 연구

백선영(Baek Sun-Young),안건혁(Ahn Kun-Hyuck) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.5

The purpose of this study is to develop a comprehensive system for evaluating the value of Hanok Residence in Seoul. 6 expert fields related to the conservation of Hanok Residence were chosen and Delphi method based on Analytic Hierarchy Process(AHP) had been practiced 4 times. As a result, 4 assessment sections and 14 assessment items were selected and the important factor of them were set up. This evaluation system can indicate the total value of Hanok Residence in Seoul that can be used not as a group of Hanoks or detached houses needing redevelopment but as an important historic area in Seoul. This study can be used as a basis for determining the conservation priority of Hanok Residence in Seoul or further on become a new methodology for establishing value assessment system for other historic areas.

부여지역 도로와 필지의 변화

백선영(Baek, Sun-Young) 대한건축학회 2014 대한건축학회논문집 Vol.30 No.6

The purpose of this study is to investigate the effects of the urban planning that has been developed in Buyeo since prehistoric times and its realization focusing on Baekje Sabi Capital Planning and Buyeo Land Readjustment Project. The results of this study were as follows; First, Buyeo is the important ancient city that was systematically planned and constructed on the basis of a definite principle in Baekje period. In addition, during the Japanese colonial period Land Readjustment Project specially took effect for building Shinto Shrine in Buyeo. Second, around the estimated area as Sabi palace, several roads have remained since being constructed in 1913. Besides, in Gua ri, Dongnam ri and Gugyo ri, the street network pattern of Buyeo Land Readjustment Project has rest since the Japanese colonial period. Third, depending on the timing of road-construction and lot-subdivision, the scale and characteristics of lots is different and they fall into three types. Fourth, the feature of architectures has relevance to the size and feature of lot.

다중경로 환경에서 공간적인 다이버시티를 이용하는 초광대역 임펄스 라디오 시스템의 성능

백선영(Sun-young Baek),강윤정(Yun-jeong Kang),김상준(Sang-choon Kim) 한국정보기술학회 2008 Proceedings of KIIT Conference Vol.2008 No.-