공개키 기반 신뢰성 강화 인증시스템 설계

성국경,이봉근,윤성일 공주영상정보대학 2001 논문집 Vol.8 No.-

본 논문에서는 전자 상거래를 위해 암호 기술의 확장성 측면에서 우수한 공개키 기반 하부 구조에서의 공개키 인증 기술을 중심으로 분석하였고, 인증기관에서 발급하고 있는 인증서의 기능을 보강함으로써 인증기관의 신뢰도를 높일 수 있는 신뢰성을 강화한 인증 시스템을 설계하였다. 공개키 기반 인증 기술은 전자 상거래 서비스에서 필요한 신분 인증, 거래 내역 인증 및 지불 처리 인증에 사용하는 기반 기술이다. 이는 공개키를 보증하는 기반 기술과 인증서의 안전한 사용 기술 등이 필요하며 전자 상거래를 실현하기 위한 필수적인 선결 사항이다. 인터넷이라는 불안전한 개발형 전산망 구조에서 안전한 전자 상거래를 제공하려면 향후 국제적인 인증 서비스와의 연동을 위한 표준화된 인증 기술의 적용이 중요하다. 현재까지 정보의 공유라는 원칙에서 발전해 온 인터넷은 앞으로 전자상거래나 전자화폐 등이 인터넷상에 등장함으로 인해 정보의 보호라는 새로운 원칙을 바탕으로 발전해 나아갈 것이다. 이러한 정보보호시대에 살아 남기 위해서는 종속적이 아닌 독자적인 암호화 기술과 데이터 인증기술의 개발이 절실하게 필요한데, 여기에 인증국의 중요성이 부각된다. 현재 암호화 기술은 어느 정도 신뢰를 줄 만큼 발전해 있지만 아직까지 데이터 인증을 위한 기반구조가 명확히 성립되어 있지 않은 상태이다. 앞으로 인증국을 기반으로 한 공개키 기반구조 확립이 빠른 시일 안에 이루어 져야 할 것이다.

안면 마비가 동반된 톨로사 헌트 증후군

강성진,김광수,이지현,김종국,김민정 고신대학교 의과대학 2009 고신대학교 의과대학 학술지 Vol.24 No.1

A 21-year-old woman developed painful left third, fourth and sixth nerve palsy. The retro-orbital pain and ophthalmoplegia were improved after steroid pulse therapy. After six weeks, during took steroid by orally left facial weakness developed. Neurologic examination showed left peripheral seventh cranial nerve palsy. The Tolosa-Hunt syndrome associated with facial palsy is rare condition. So we report a case of Tolosa-Hunt syndrome preceded by ipsilateral facial palsy

3차원적 측두골 전산화 단층촬영을 이용한 중이질환에 대한 임상적 고찰

강성호,김진국,홍석찬 건국대학교 의과학연구소 1997 건국의과학학술지 Vol.- No.7

유방암의 nm23 단백 발현 - 면역조직화학적 연구 -

송상용,지제근,한세환,최국진 대한병리학회 1995 Journal of Pathology and Translational Medicine Vol.29 No.4

편측안면경련 환자에서의 임상적 중증도를 평가하기 위한 전기생리학적 연구

전성만,김종국,정재익,차재관,김상호,김재우 대한신경과학회 1998 대한신경과학회지 Vol.16 No.2

생쥐에 있어서 과배란의 영향과 배자이식에 관한 연구

유우국,남상륜,강길전 충남대학교 의과대학 지역사회의학연구소 1989 충남의대잡지 Vol.16 No.2

To investigate the effects of hyperstimulation on the reproductive function, such as number of ovulated oocytes, fertilization rate, rate of blastocyst formation, number of survived implanted fetus, and effect on tubal transfer of embryos, ICR mice were injected intraperitoneally with PMSG, 5 IU and HCG, 5 IU and the comparative study with the control group was undertaken. In addition, mouse embryos, i.e., morulas or blastocysts were transferred to pseudopregnant recipient to investigate whether the embryo stge could effect on implantation rate. The results were as follows: 1. The number of ovulated oocytes after hyperstimulation was significantly increased, compared to the control group. The number of degenerated oocytes was also significantly increased. 2. The fertilization rate after hyperstimulation was not significantly different, compared with the control group. 3. The rate of blastocyst formation after hyperstimulation was significantly decreased, compared to the control group. 4. The number of survived implanted fetus was not significantly different with control group. 5. The speed of embryos’ movement in tube was significantly increased after hyperstimulation. 6. The significant loss of embryos was noticed just before implantation in hyperstimulation group. 7. After embryo transfer to recipient mothers, pregnancy rte with blastocysts was significantly increased, compared to pregnancy rate with morulas. This study suggests that hyperstimulation treatment on mice brings about significant loss of embryos just before implantation and its cause seems to be originated from developmental delay of the embryos.

現代建築에서 '透明性'의 表現에 關한 硏究 : 구성원리와 건축적 적용을 중심으로 Focused on the Architectural Composition & Application

金成國,金素希 홍익대학교환경개발연구원 2001 환경개발연구논문집 Vol.6 No.-

'Transparency', which has been an important topic of architectural discourse in the recent past, is playing an even greater role in architectural expression nowadays. The purpose of this study is to define the prevailing conceptions about 'transparency' and to discover the various modes of this expressionism and the interrelaionships that exist therein. The inherent physical characteristic of mateial, the element that can dematerialize this quality light and the other spatial arrangement that cause the notion of simultaneity all the basic forms that transparency must have an effect on. The diverse effects created by the abuse states -textual, spatial and conceptual- are dependent and limited by the materials being used. Although architectural 'transparency' can be categorized into textural, spatial and conceptual modes, they do not exist independent of one another but instead form a symbiotic relationship through their interdependence and complementation. In contemporary architecture, the expression of transparency can be classified into the forms one for perceptual effect and the other for conceptual effect.

집단응집력이 농구 경기력에 미치는 영향

장국진,김상식,김계심 龍仁大學校 體育科學硏究所 2005 體育科學硏究論叢 Vol.15 No.1

The purpose of this study is to investigate the influence of group cohesion upon basketball play, and to provide the basic data in order to improve team play. In this study, Group Cohesion Questionnaires were used among 223 subjects who participated in the 33rd National President Cup High School Basketball Match as 12 boy student teams and 11 girl student teams. In this study, I analyzed the relationship among four cohesions as well as general characteristics of subjects. From four cohesions Discriminant Analysis that made distinct the difference of team play was turned out, and the results are as follows; First, the relationship among four cohesions was high in view of the linear relationship among cohesions. Second, the variables of four cohesions based on the results of each descriptive statistics had a great influence on the team play of higher ranking boy student, girl student, and whole teams. Third, in the whole and boy student teams, group-society cohesion, individual-task cohesion, and group-task cohesion were selected as significant variables step by step. Fourth, in the girl student teams, group-society cohesion was selected as significant variables step by step. Fifth, according to the result of unstandardized canonical discriminant analysis in the whole and boy student teams, group-society cohesion had a great influence on the discriminant analysis. Sixth, according to the result of unstandardized canonical discriminant analysis in the girl student team, individual-society cohesion had a great influence on the discriminant analysis.

體育史認識과 方法에 대한 諸問題

金相九,金成國 成均館大學校 科學技術硏究所 1993 論文集 Vol.44 No.1

The purpose of this study was investigating recognition and method in History of Physical Education. In order to understand human movement in the time being, History of Physical Education is one of the important discipline in Physical Education. History of Physical Education is a valuable mean that predicting future by studying the past and the present events. All human movement, however, does not have a historical value in Physical Education. History is a recognition of the past. The past events cannot be examined by themselves. They only can be examined by the evidence of the past events and the historical materials. Also, these historical materials and the past events cannot exist themselves. They are revealed by historians interpretation. The process of investigating is briefly described as followed. Studying history is not simply observing events or/and collecting data. It should be started with a questions, such as, <how>, <why>, <what> and should be studied by researching literature and investigating hypothesis. Then, historians reorganize the historical matrails and criticize the past events or/and the hypothesis. After this process the past events and the hypothes is become a valuable meaning by historians interpretation. Then, they reaches a conclusion. In order to understand these process, historians must understand historical recognition and methods. When they recognize whole context of historical events, they will be able to free from the methodolegical fallacy.

스톡옵션 부여 공시와 주가

양성국 제주대학교 관광과경영경제연구소 2003 産經論集 Vol.19 No.-