http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
홍성민,정인균,이준우,김성준 한국지리정보학회 2004 한국지리정보학회지 Vol.7 No.1
본 연구는 경안천 하류구간(13.8㎞)을 대상으로 SMS의 RMA2 모형과 SES2D 모형을 이용하여 2002년 경안관측소의 최대홍수위를 기록한 8월 7일의 수리분석을 실시하였다. RMA2 모형을 적용하기 위하여 RIMGIS 데이터의 하천측량자료를 이용하여 입력자료로 활용하였으며, 생성돈 지형자료를 2차원 유한요소망으로 변환하여 모형을 수행하였다. 본 연구에서는 부정류 상태의 모의를 적용하였으며, 모형에 민감하게 반응하는 인자에 대해서는 선행 연구에서 실시한 민감도 분석결과를 고려하였고, 기타 입력인자는 통계연보 및 하천정비계획서를 참고하였다. 또한 대상하천에 SED2D 모형을 적용하여 홍수사상에 대한 하천의 하상 변동에 대한 모의를 실시하였으며, 대상 하천의 홍수시 유속은 0.05~3.85㎧의 분포로 상류와 하류의 큰 차이를 보였고, 하상변화는 0.0003~0.0135m가 발생하였다. The purpose of this study is to analyze various hydraulic characteristics using SMS(Surface Water Modeling System) RMA2 model. It is based on 2-D finite element method, River reaches (13.8㎞) from Gyeongan gauge station to the inlet of Paldang lake was selected. Finite element was made by RINGIS Data, and the analysis of river-changes was operated by unsteady flow. The sediment concentration and bed change was simulated using SED2D model. This River's velocity was distributed that 0.05~3.85㎧ and bed change was changed about 0.0003~0.0135m.
김일규,손성준,오성섭 大韓顎顔面成形再建外科學會 1995 Maxillofacial Plastic Reconstructive Surgery Vol.17 No.4
This is a clinical and retrospective study who sustained a total of 306 maxillofacial bone fracture and who were treated in our department between 1990-1994. This results were obtained as follows : 1. The ratio of men to women was 3.2 : 1. 2. The age frequency was the highest in the third decade(35%). That of man was the highest in the third decade but that of women in the fourth decade. 3. In respect of incidence, the number of patients has not been increased year after year. There were the highest frequency in September and the lowest frequency in January. 4. The most frequent cause of facial bone fracture was fall down(40.2%), traffic accident(28.1%), fist blow(20.9%), industrial accident(6.2%) and others in order. 5. The most common location of facial bone fracture was mandible(69%), maxillar with zygoma and zygoma in order of frequency. 6. The age frequency of mandible was the third decade(36.5%), the fourth decade(23.2%) and the fourth decade(22.2%) and the fifth decade(15.6%) in order. 7. In respect of incidence of associated injuries, the ratio of absence to presence was 0.7 : 1. 8. In 306 patients of facial bone fracture, the frequency of associated injuries was laceration, extrimities, chest in order.
이 재 성,유 준 혁 대구대학교 정보통신연구소 2014 情報通信硏究 Vol.10 No.1
본 논문은 자율 이동 로봇의 장애물 회피와 관련된 기술동향을 분석하였다. 산업현장, 공공 및 개인 서비스 분야에서 다양하게 사용 중인 이동 로봇에서 안전과 가장 밀접된 장애물 충돌 회피를 위해 사용하는 다양한 기법들을 소개하고, 특히 인공전위계 알고리즘(Artificial Potential Field), 가상역장(Virtual Force Field) 알고리즘, 탄성력(Elastic Force) 알고리즘 등을 분석하고 각각의 장·단점을 도출하였다. This paper presents, the trend of technology regarding obstacle avoidance for autonomous mobile robots. The mobile robots are widely used in various fields such as industry and public personal service area. This paper introduces several techniques of the collision avoidance sith obstacles, which is closely related to the safety, especially three algorithms of artificial potential filed, virtual force field and elastic force are analyzed by figuring out pros and cons of each one.
박성규,김준태 조선대학교 기초과학연구소 1994 自然科學硏究 Vol.17 No.1
The reactivity increase of unsubstituted energetic compound in cyclic ethers was found in order of three-membered cyclic form < five-membered cyclic form < four-membered cylclic form. The nucleophilicity and basicity of cyclic ethers can be explained by the negative charge on oxygen atom of cyclic ethers. The reactivity of propagation in the polymerization of cylclic ehters can be represented by the positive charge on carbon atom and the LUMO energy of active species of cyclic ethers.
홍성표,이준 朝鮮大學校 電子情報通信硏究所 2003 電子情報通信硏究所論文誌 Vol.6 No.2
Integration with CORBA and mobile agent is improving various kinds problems that are happening in distributed system. This technology is guarantee the interoperability to other agent platforms and extend the mobile agent system but appears various kinds problems of security. In this paper, we propose the mobile agent security system that is based on CORBA security service specification and MASIF. Since proposed system is based on CORBA and MASIF, it is extend the large scale of distributed system and interoperable with other agent platforms