대규모 공동연구 네트워크에서 저자의 중심성이 연구성과에 미치는 영향

문성구,김인재 한국IT서비스학회 2018 한국IT서비스학회지 Vol.17 No.2

This study is about the influence of authors’ centrality on research outcomes in a large-scale collaborative research network. Using the social network analysis method, five types of centralities were derived. Six research outcomes of individual researchers were also derived through bibliographic information of the social science field for the last 10 years. A multivariate regression analysis was conducted to examine the causal relationship between the centrality and research outcome, and the effect of centrality on research outcomes was found to be statistically significant. The result of this study shows that the revised citation and H-index significantly influenced the authors’ centrality. This result can imply that the centrality of the researcher can expect a considerable influence of the thesis as well as a certain level of productivity. The meaning of this study is to analyze the effect of centrality on the research outcomes of the large-scale collaborative research network in the past decade, and is carefully to suggest a guideline in order to support new research information services for active researchers and the advancement of collaborative research. This study has its limitation for interpreting the diverse academic fields of the social sciences in a uniform way. In future study, it is necessary to conduct studies using various weighted indices for network centrality in order to measure the influence of research.

공동연구 네트워크에서 중심성과 연구성과 간의 관련성에 관한 연구

문성구,김인재,Moon, Seonggu,Kim, Injai 한국정보처리학회 2018 정보처리학회논문지. 소프트웨어 및 데이터 공학 Vol.7 No.5

본 연구의 목적은 지난 10년간 사회과학저널 전체에 대한 소셜 네트워크 분석을 수행하여 중심성과 연구성과 간의 관계를 분석하는 것이다. 절대적인 논문 수를 기준에 따른 상, 중, 하 그룹으로 연구성과와 상관관계 분석을 수행한 결과 대부분의 그룹에서 중심성과 연구 생산성의 상관관계는 높은 상관관계가 나왔지만 연구의 영향력과 인용 속도는 유의미한 결과가 도출되지 않았다. 또한, 종합적인 연구성과와의 관계에서는 중위 그룹의 상관관계가 상위 그룹보다 더 유의미하게 나타났다. The purpose of this study is to analyze the relationship between the centrality and the research performance by conducting the social network analysis for the social science journal in the last 10 years. As a result of the relationship analysis, the correlation between centrality and research productivity was highly correlated in most groups, but the impact factor and frequency of citations were not significant. In relation with the comprehensive research such as a H-index, middle productive group correlation was more significant than the upper productive group.

XML/EDI 서비스 도입으로 인한 업무 처리 개선에 관한 사례 연구

김인재,문성구 한국정보기술응용학회 2001 한국정보기술응용학회학술대회 Vol.2001 No.1

소셜 네트워크 게임(SNG)의 추천의도에 영향을 미치는 요인

최지용(Ji-yong Choi),문성구(Seong-gu Moon),김인재(In-jai Kim) 한국인터넷전자상거래학회 2016 인터넷전자상거래연구 Vol.16 No.4

Social Network Game(SNG) has been used widely and becomes a part of daily life. However, compared with online game or other games, there is lack of empirical studies about SNG. In this study, we found out factors that influence SNG issues by using several hypotheses based on a solid research model, and investigated the moderating effects of sex and nationality. In order to achieve the objectives of this study, we reviewed the previous research literature. We surveyed SNG users in Korea and in China, and got 273 questionnaires from Korea and China We used the LISREL 8.72 and SPSS 20.0 for statistical analysis, We confirmed that the quality of the SNG system and commitment are have a positive impact on user satisfaction and loyalty. but personal innovativeness does not have a positive impact on user satisfaction and loyalty. There are not the moderating effects of nationality and sex.

대학생들의 섬(도서) 지역에 대한 지식수준 분석을 통한 섬 관광활성화 방안

이동호 ( Dong Ho Lee ),최명길 ( Myeong Gil Choi ),문성구 ( Seong Ju Moon ) 한국도서(섬)학회 2010 韓國島嶼硏究 Vol.22 No.2

Though many study and research on island tourism have been accomplished, there are not enough study and research on island tourist`s knowledge about island tourism. The knowledge is a critical factor in most of decision making problems including island tourism, because it plays an essential role in enhancing decision results and alternatives. The first objective of this study is to identify the status of students` island related knowledge level and the second objective is to analyze the result of their knowledge in the context of one`s residential/geographic and experiential factors. The result of this study shows that the relation between one`s residential factor and his knowledge is partially rejected except the question of which district has most islands in Korea. And the student`s experiential factor which was measured by amount of visiting island was significantly related with common geographic island knowledge and specific provincial island in Korea. Especially the knowledge level of students in Chungcheongnamdo district island was significantly different depending on one`s amount of island tourism experience. Base on the result of this study, one`s knowledge about the island should be identified and needed to be shared properly within the tourists in order to improve the effects of strategy or policy in island tourism. And also an institutional education program or public relation activity should be implemented to enhance the current island tourist`s knowledge level of island tourism in Korea.

GaAs(100)기판 위에 성장된 $Zn_{0.86}Mn_{0.14}Te$에피막의 띠 간격 에너지

최용대,안갑수,이광재,김성구,심석주,윤희중,유영문,김대중,정양준 한국결정성장학회 2003 한국결정성장학회지 Vol.13 No.3

본 연구에서는 두께가 0.7 $\mu \textrm{m}$인 $Zn_{0.86}Mn_{0.14}$Te 에피막을 GaAs(100) 기판 위에 열벽 적층 성장하였다. 선택에칭용액에 의하여 GaAs 기판이 제거된 X-선 회절 패턴으로부터 $Zn_{0.86}Mn_{0.14}$Te에피막의 결정구조는 zincblende 이었으며 격자상수는 6.140 $\AA$으로 계산되었다. 이러한 격자상수 값과 Vegard 법칙으로부터 Mn의 조성비 x=0.14임을 알았다. 성장된 에피막의 결정성은 이중결정요동 곡선의 반폭치 값이 256 arcsec인 것으로부터 양호하다는 것이 확인되었다 상온에서 10K 까지 $Zn_{0.86}Mn_{0.14}$Te에피막의 온도에 따른 띠 간격 에너지를 측정하기 위하여 투과 스펙트럼으로부터 흡수 스펙트럼이 얻어졌다 온도가 감소할수록 흡수 스펙트럼에서 강하게 흡수가 일어나는 영역은 에너지가 큰 쪽을 향하여 이동하였고 흡쑤단 근처에서 자유 엑시톤 형성을 의미하는 흡수 피크가 생겨났다. $Zn_{0.86}Mn_{0.14}$Te에피막의 온도에 따른 자유 엑시톤 피크 에너지로부터 OK와 300 K일 때 띠 간격 에너지는 각각 2.4947 eV와 2.330 eV로 구하여졌다. 10 K에서 기판이 제거된 $Zn_{0.86}Mn_{0.14}$Te 에피막의 흡수 스펙트럼의 자유 엑시톤 피크 에너지는 광발광 피크 에너지보다 15.4 meV 정도 크다. 이 에너지 차이는 흡수 스펙트럼과 발광 피크 사이의 에너지 차이를 의미하는 Stokes shift를 나타낸다. In this study, $Zn_{0.86}Mn_{0.14}$Te epilayer of 0.7 $\mu\textrm{m}$-thickness was grown on GaAs(100) substrate by using hot wallepitaxy. GaAs(100) substrate was removed from $Zn_{0.86}Mn_{0.14}$Teepilayer by the selective etching solution. The crystal structure and the lattice constant of only Z $n_{0.86}$ M $n_{0.14}$Te epilayer were investigated to be zincblende and 6.140 $\AA$ from X-ray diffraction pattern, respectively. Mn composition x of $Zn_{1-x}Mn_x$Te epilayer was found to be 0.14 using this lattice constant and Vegard's law. The crystal quality of the epilayer was confirmed to be very good due to 256 arcsec-full-width at half-maximum of the double crystal rocking curve. The absorption spectra from the transmission ones were obtained to measure the band gap energy of $Zn_{0.86}Mn_{0.14}$Te epilayer from 300 K to 10 K. With the decreasing temperature,. strong absorption regions in the absorption spectra were shifted to higher energy side and the absorption peak meaning the free exciton formation appeared near the absorption edge. The band gap energy values of $Zn_{0.86}Mn_{0.14}$Te epilayer at 0 K and 300 K were found to be almost 2.4947 eV and 2.330 eV from the temperature dependence of the free exciton peak position energy of $Zn_{0.86}Mn_{0.14}$Te epilayer, respectively. The free exciton peak position energy of $Zn_{0.86}Mn_{0.14}$Te epilayer without GaAs substrate was larger 15.4 meV than photoluminescence peak position energy at 10 K. This energy difference between two peaks was analysed to be Stokes shift.

유전자조각, 균주분리 Pichia pastoris에서 Aspergillus ficuum 유래 Acetyl Xylan Esterase 유전자의 과발현

임재명 ( Jae Myung Lim ),김성구 ( Sung Koo Kim ),박승문 ( Seung Moon Park ),남수완 ( Soo Wan Nam ) 한국미생물생명공학회 2002 한국미생물·생명공학회지 Vol.30 No.4