사회적 체계 이론의 지식 네트워크 분석 연구 - Niklas Luhmann의 후속연구를 중심으로 -

박성우,홍소람,Park, Seongwoo,Hong, Soram 한국도서관정보학회 2022 한국도서관정보학회지 Vol.53 No.1

Niklas Luhmann is a sociologist who has had a strong influence on other disciplines. Therefore, it is necessary to examine what Luhmann's theory has influenced on his subsequent researchers. This study analyzed the knowledge network of studies on Niklas Luhmann's theory by follow-up researchers. Bibliographic coupling and co-citation were used as the analysis method of knowledge network. The main results are as follows. First, the language clusters were divided into Latin American / Spanish-speaking regions, Western Europe / Anglo-American regions, Eastern / Northern Europe and other language regions through bibliographic coupling analysis. Second, from the node analysis of bibliographic coupling, It was divided into 2 main cases: where Luhmann's major works were cited; where Luhmann's minor works were cited. Third, it was found that there are the core work groups that are repeatedly cited among Luhmann's works. Fourth, 12 core works were derived from the node analysis of the co-citation network, and appeared in four groups according to themes.

잠자리 모방 익형의 공력특성 분석을 위한 풍동실험 연구

박성우(SeongWoo Park),김동근(Donggeun Kim),이현범(HyunBeom Lee),한종섭(JongSeob Han) 한국항공우주학회 2023 한국항공우주학회 학술발표회 논문집 Vol.2023 No.11

Usability Comparison of Chairs Regarding Good Sitting Posture

Seongwoo Park(박성우),Joowhi Rho(노주휘),Yohan Tak(탁요한),Wonsup Lee(이원섭),Chanwook Park(박찬욱) 대한인간공학회 2023 대한인간공학회 학술대회논문집 Vol.2023 No.5

VMProtect의 역공학 방해 기능 분석 및 Pin을 이용한 우회 방안

박성우 ( Seongwoo Park ),박용수 ( Yongsu Park ) 한국정보처리학회 2021 정보처리학회논문지. 컴퓨터 및 통신시스템 Vol.10 No.11

상용 난독화 도구(프로텍터)들은 소프트웨어 역공학 과정에서 프로그램의 분석을 지연시키고 방해하는 난독화 기술 및 역공학 방해(안티리버싱) 기법을 적용시킴으로써 소프트웨어의 동작 과정을 분석하는데 어려움을 발생시키는데 목적이 있다. 특히, 가상화 탐지와 안티디버깅 기능 같은 경우 분석 도구가 발견되면 정상적인 실행 흐름을 벗어나 프로그램을 종료시킨다. 본 논문에서는 상용 난독화 도구(프로텍터) 중 하나인 VMProtect 3.5.0을 통해 Debugger Detection, Virualization Tools Detection 옵션을 적용시킨 실행 파일의 안티리버싱 기법을 분석하고 Pin을 이용한 우회 방안을 제안한다. 또한, 적용된 안티리버싱 기법을 분석하는 과정에서 Amti-VM 기술과 Anti-DBI 기술에 의해 프로그램이 종료되는 문제가 발생하기 때문에 API 분석을 통해 특정 프로그램 종료 루틴을 알아내어 적용된 안티리버싱 기법의 위치를 예상하고 위치를 바탕으로 안티리버싱 기법 우회 방안 알고리즘 순서도를 작성하였다. 실험에 사용된 소프트웨어들의 버전의 차이로부터 발생하는 호환성 문제, 기법의 변화 등을 고려하여 최신 버전의 소프트웨어(VMProtect, Windows, Pin)에서 Pin 자동화 우회 코드를 작성하고 실험을 진행하여 성공적으로 우회됨을 확인하였다. 제안된 분석 방안을 개선하여 기법이 제시되지 않은 난독화 도구의 안티리버싱 기법을 분석하고 우회 방안을 찾아낼 수 있다. Commercial obfuscation tools (protectors) aim to create difficulties in analyzing the operation process of software by applying obfuscation techniques and Anti-reversing techniques that delay and interrupt the analysis of programs in software reverse engineering process. In particular, in case of virtualization detection and anti-debugging functions, the analysis tool exits the normal execution flow and terminates the program. In this paper, we analyze Anti-reversing techniques of executables with Debugger Detection and Viralization Tools Detection options through VMProtect 3.5.0, one of the commercial obfuscation tools (protector), and address bypass methods using Pin. In addition, we predicted the location of the applied obfuscation technique by finding out a specific program termination routine through API analysis since there is a problem that the program is terminated by the Anti-VM technology and the Anti-DBI technology and drew up the algorithm flowchart for bypassing the Anti-reversing techniques. Considering compatibility problems and changes in techniques from differences in versions of the software used in experiment, it was confirmed that the bypass was successful by writing the pin automation bypass code in the latest version of the software (VMProtect, Windows, Pin) and conducting the experiment. By improving the proposed analysis method, it is possible to analyze the Anti-reversing method of the obfuscation tool for which the method is not presented so far and find a bypass method.

서주(西周) 청동기(青銅器) 명문(銘文)에 나타난 ‘천명(天命)’의 의미와 활용

박성우 ( Park Seongwoo ),문치웅 ( Moon Chiung ) 한국중국언어학회 2021 중국언어연구 Vol.- No.93

We can find records of ‘Heaven’s command (天命)’ in the literature and excavated materials prior of the Qin Dynasty. The Heaven’s command was an command order that had a significant impact on the actions and decisions of the ancient china’s kings. They carried out an order by command of the Heaven emperor and also the Heaven’s command was actively used as a means to effectively govern the country along with the legitimacy of power in connection with the ruling class. The term Heaven’s command was frequently used in sentences inscribed on bronze vessels made during the Zhou Dynasty. At that time, Heaven was recognized as a central area that ruled East Asia, creating and developing all things for people, and where the emperor lived. Heaven also played a key role in important historical projects such as the Chisu (治水) project, the replacement of the Ha (夏) and Shang (商) Dynasties, and the replacement of the Shang and Zhou (周) Dynasties. During the national project and the replacement of the dynasty, there was Heaven command ordered by Heaven. Records of these texts and excavated materials suggest that, the ancient times, Heaven was considered the most important place to serve as the center of the empire or the federal headquarters. However, Heaven gradually lost its power during the Warring States period and became symbolic, and Heaven command was changed to an abstract meaning of absolute command or mandatory instructions.

중국 동북 3성의 도시화와 경제성장

박성우 ( Seongwoo Park ),이종찬 ( Jongchan Lee ) 한국재정정책학회 2021 財政政策論集 Vol.23 No.3

본 연구는 2008년∼2018년의 기간 동안 중국 동북 3성의 도시화율이 지역 경제성장에 미치는 영향 분석하여 14·5 규획 기간 이어지는 중국의 도시화 정책이 동북 현상을 해결하기 위한 수단으로 적합한지를 확인한다. 분석결과 도시화와 경제성장은 양(+)의 관계로, 이는 동북 3성의 질적 도시화 정책이 동북현상 해결을 위한 정책적 수단으로 적합한 것으로 나타났다. 본 연구는 이러한 질적 도시화 정책을 통한 동북 3성의 발전이 지리적으로 인접한 한국의 시장 진출 확대를 통해 한국경제에 긍정적인 영향을 줄 수 있다는 시사점을 제시한다. This study analyzes the impact of the urbanization rate of the three northeastern provinces of China from 2008 to 2018 on regional economic growth to confirm whether China’s urbanization policy, which continues during the 14·5 rule, is suitable as a means to solve the northeast phenomenon. As a result of the analysis, it was found that urbanization and economic growth were positive (+), and the qualitative urbanization policy of the three northeastern provinces was appropriate as a policy means to solve the Northeast phenomenon. This study suggests that the development of the three northeastern provinces through these qualitative urbanization policies can have a positive effect on the Korean economy by expanding the geographical expansion of neighboring Korea into the market.

주거공간 내 재실자 위치 및 행위 인식을 위한 바닥압력센서 활용 가능성에 관한 연구

박성우(Seongwoo Park),박성현(Seonghyun Park),서장후(Janghoo Seo) 한국태양에너지학회 2021 한국태양에너지학회 학술대회논문집 Vol.2021 No.11

고대 문헌에 나타난 ‘천강(天降)’의 의미 고찰

朴晟佑 ( Park Seongwoo ),文致雄 ( Moon Chiung ) 중국어문연구회 2020 中國語文論叢 Vol.0 No.101

In this study, we address a literal·historical understanding of ‘Cheongang (天降)’, which was interpreted as ‘come down from the sky(or heaven)’. Cheongang is emerging element in the process of founding the ancient state. An existing interpretation that come down from the sky(or heaven) was came from an understanding of myth frame. In myth frame, ‘Cheongang(天降)’ was interpreted that, we emphasize sacredness through the connection with the heavens or emphasizing the legitimacy of government. But simultaneously, it has also served as a limit that made an accurate review of the times and circumstance impossible. The interpretation of Cheongang(天降), ‘come down from the sky(heaven)’, is the result of faithful application of the primary meaning as written in dictionary. Cheon(天) is sky(heaven), gang(降) is come down or refers to the act of surrendering to the enemy. From the comprehensive analysis of the records of other ancient literature and the excavated texts, we can understand cheon(天)’s various meanings. In addition to the abstract meaning of sky, cheon(天) points to the existence of the most precious and high-ranking area or person in the world. However, people cannot come down from the sky. Therefore the Cheongang(天降) that defined as the come down from the sky is unscientific and unrealistic. This is the result of the lack of understanding about the meaning of Cheon(天) and Gang(降). In here, we extensively collected the excavated texts and literature of the related to ancient Cheon(天) and Gang(降) made a literal analysis and discussion of the character shape and meaning of Cheongang(天降).

UV 기반 백색 LED용 청색 형광체의 발광특성 및 백색 LED 제조

정형식,박성우,김태훈,김종수,Jung, Hyungsik,Park, Seongwoo,Kim, Taehoon,Kim, Jongsu 한국광학회 2014 한국광학회지 Vol.25 No.4

UV용 청색 형광체 $CaMgSi_2O_6:Eu^{2+}$를 환원 분위기 속에서 고상반응법(Solid-state reaction)으로 합성하였다. 합성된 형광체의 결정성을 확인하기 위해 X-선 회절(X-ray diffraction) 패턴 측정결과 C2/c(15)의 공간군과 단사정계(Monoclinic) 구조를 가지는 JCPDS No.75-1092와 일치하는 단일상임을 확인하였다. 광 여기 및 발광 스펙트럼을 통하여 350 nm 부근에서 최대 흡수치가 나타나며, 450 nm의 청색 발광을 보인다. 이는 $Eu^{2+}$이온의 $4f^7-4f^65d$의 천이에 기인한다. 온도에 따른 형광체의 발광 스펙트럼을 확인한 결과 $100^{\circ}C$에서 54%의 휘도 유지율을 보였다. 상기 합성된 $CaMgSi_2O_6:Eu^{2+}$와 400 nm의 Ultra Violet 발광 다이오드를 이용하여 상용 녹색, 적색 형광체와 혼합하여 백색 LED를 구현 하였다. 구현된 백색 LED는 구동 전류 350 mA, 구동 전압 3.45 V에서 색좌표 x=0.3936, y=0.3605, 색온도(CCT) 3500 K, 연색성(CRI) 87, 발광 효율 18 lm/w로 나왔다. 또한 400시간 기준 수명 시험 결과 초기광도 대비 97%의 유지율을 보였다. 따라서 본 연구를 통해 합성한 청색 형광체 $CaMgSi_2O_6:Eu^{2+}$는 UV LED기반의 백색 조명용 형광체로서의 가치가 있는 것으로 생각된다. We have synthesized a $CaMgSi_2O_6:Eu^{2+}$ blue phosphor via a solid-state reaction method. The $CaMgSi_2O_6:Eu^{2+}$ phosphor has monoclinic structure with a space group of C2/c (15), and an emission band peaking at 450 nm (blue) due to the $4f^7-4f^65d$ transition of the $Eu^{2+}ion$. The emission intensity at $100^{\circ}C$ is 54% of the value at room temperature. A white LED was fabricated by integrating a UV LED (400 nm) with our blue phosphor plus two commercial green and red phosphors. The white LED shows a color temperature of 3500 K with a color rendering index of 87 (x = 0.3936, y = 0.3605), and a luminous efficiency of 18 lm/W. The white LED shows a luminance maintenance of 97% after operation at 350 mA for 400 hours at $85^{\circ}C$.

환태평양 경제동반자협정(TPP) 참여에 대비한 품목별 관세 전략 수립에 관한 연구

곽기호(Kiho Kwak),박성우(Seongwoo Park),이운규(Oonkyu Lee) 한국산업경제학회 2014 산업경제연구 Vol.27 No.4

본 연구는 최근 통상정책의 주요 현안인 환태평양 경제동반자 협정(TPP) 참여와 관련해, 제조업의 관세 전략 수립을 위한 이론적 방안을 제시하였다. 본 연구에서는 품목별 수입액과 수출용 수입 비중, 국내 생산 규모, 세계 수출 점유율 등의 변수를 통합적으로 활용함으로써 관세 인하 및 철폐로 수입원가 절감을 꾀하거나 수출 확대를 추진해야 할 품목, 무역 경쟁력 열위로 인해 국내 생산 기반 보호가 필요한 품목, 히든 챔피언으로 육성하기 위한 지원 정책이 필요한 품목을 발굴하기 위한 이론적 프레임 워크를 제시했다. 특히 본 연구는 이러한 프레임워크를 TPP 및 무역 협정 체결 관련 논의에서 공통적으로 제조업 중 가장 큰 피해가 예상되는 분야로 인식되는 일반기계산업에 적용하고, 개방 확대 품목21개, 보호 품목 3개, 히든 챔피언 유망 품목 9개 등 33개 일반기계 품목에 대한 맞춤형 관세 전략 및 정책 방향을 제시했다. 본 연구는 통합적인 관점에서 제조업 별 관세 전략을 수립할 수 있는 이론적 기반을 구축하였으며, 이를 일반기계산업에 적용, 품목별 특성에 따른 차별화된 관세 전략을 제시하였다는 점에서 그 의의가 있다. As Korean and Japanese government considered participation in TPP (Trans-Pacific Partnership) more positively, we suggested theoretical framework for Korean tariff strategies of TPP from the perspective of import, weight of import for export, domestic production, and export market share. In particular, we applied the theoretical framework to Korean machinery and equipment industry, which many scholars has concerned about serious economic impact when TPP goes into effect. We found that among 66 product items in the industry, it is necessary for 21 product items to open the market(reduce the tariff rate) for export competitiveness (cost competitiveness for export) and export market development. We also identified that 3 product items that achieved significant amount of domestic production but faced serious trade imbalance, such as semiconductor and flat panel production equipment, and proposed that government policies including delaying tariff elimination schedule and development of core technology are necessary for their competitiveness. Lastly, we classified 9 product items as potential hidden champion based on their relatively high level of market share and export competitiveness, as well as suggested relevant policy agendas, such as overcoming a non-tariff barrier, overseas market development and productivity enhancement. Our Study provides important initial theoretical ground for developing Korean manufacturing tariff strategies for joining TPP.