Classification of plant orostachys used chloroplast genome through Real-Time PCR

An Joon,Jang Cheol Seong 한국작물학회 2017 한국작물학회 학술발표대회 논문집 Vol.2017 No.-

SMS를 이용한 경안천 하류구간의 하천흐름 분석

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.

성남지역의 안악골 골절에 관한 임상적 연구

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.

운동신경원성 질환을 동반한 전측두엽 치매 1례

최성혜,나덕렬,김병준,이정일,서연림,김상은 대한신경과학회 1998 대한신경과학회지 Vol.16 No.4

자율 이동 로봇의 장애물 회피 기술 동향

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.

^(13)C-Octanoic acid 호기 위 배출 검사의 방법에 따른 비교

이준성 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.1

Aim: To compare the accuracies of two mathematical models (non-linear vs. linear model), which is currently available, in the measurement of gastric emptying using ^(13)C-octanoic acid breath test. Method: In twenty healthy volunteers, gastric emptying of solids were measured by simultaneous scintigraphy and ^(13)C-octanoic acid breath test up to 4 hours. Gastric half-emptying times (t_(1/2)) and LAG times (t_(lag)) by breath test were analyzed using non-linear model and generalized linear model, and compared with those by scintigraphy. Results: In the comparisons of gastric emptying t_(lag), the breath test results were overestimate the scintigraphic results. The standard diviation of difference was 168 minutes (range 0 to 777) by non-linear method and 29 minutes (6 to 116) by linear method. For the t_(1/2), the breath test results were also overestimate the scintigraphic results. The standard diviation of difference was 538 minutes (range -3 to 2,406) by non-linear method and 72 minutes (-11 to 315) by linear method. Conclusions: Linear model looks more acurate than non-linear model in the measurement of gastric emptying using ^(13)C-octanoic acid breath test. However, two methods still shows overestimation compared to scintigraphic results, suggesting need for the development of accurate method of ^(13)C-octanoic acid gastric emptying breath test.

초등학교 수준별 교육과정 운영 방안에 관한 연구

이성영,김광명,신준식 춘천교육대학교 초등교육연구소 2001 敎育硏究 Vol.18 No.-

통신산업 부문에서의 정부-기업관계 변화 : 이동통신사업자 선정정책을 중심으로 Focus on the Mobile Telecommunication Industry

최성락,노화준 서울대학교 행정대학원 2003 行政論叢 Vol.41 No.3

정책변동의 주요한 연구 방향으로는 ①정책변화가 발생하는 요인에 대해서 탐색하는 정책변동 요인론과 ②정책변화의 규칙적인 추세를 발견하고자 하는 추세 탐색 연구가 있다. 본 논문에서는 우리나라의 5차례에 걸친 이동통신 사업자 선정 정책의 변동을 중심으로 하여 이동통신사업자 선정 정책의 변화 추세와 변화 패턴을 살펴보고, 이를 기반으로 통신 부문에서의 정부-기업 관계가 어떻게 변화하고 있는가를 탐색하였다. 우리나라의 이동통신사업자 선정 정책은 1992년 제2 이동통신 사업자 선정, 1994년 제2 이동통신 사업자 선정, 1996년 PCS 사업자 선정, 2000년 IMT 2000 사업자 선정, 2001 IMT 사업자 선정의 5차례에 걸쳐 이루어졌다.이와 같은 이동통신 사업자 선정 정책은 조금씩, 일정한 방향으로의 정책 변동이 이루어졌다. 이러한 이동통신 사업자 선정 정책의 변동으로 본 우리나라 통신 부문의 정부-기업 관계는 ①정부는 선정기준을 제정하고 기업은 선정기준 내에서 행위하는 전략적 행위자로서의 역할 분담이 이루어지고, ②정부와 기업이 상호 의존하는 관계로 변화하고 있으며, ③정책과정에서의 직접적인 손실자가 감소되는 추세를 보여주고 있다. This research is about the pattern of policy change. By studying the pattern of policy change on Selecting Srevice Provifers in Mobile Telecommunication Industry, it seeks to the treds of the relation between Government and Business. There are five policies on the selection of service providers in Mobile Telecommunication Industry in Korea. These policies have changed slowly and have trends to its own way. The trends of government-Business relation on the Policy Change on Selecting Service Providers in Mobile Telecommunication Industry are ①Government plays a role in making the rule and Businesses play strategically within the rule, ② the relations between Government and Businesses tend to become mutually dependent, and ③the direct losers of the policy have decreased.

디지털 이미지 보호를 위한 효과적인 웨이브릿 변환

홍성표,박영옥,송기범,배일호,이준 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2

The use of digital imaging technique and digital contents based on internet has grown rapidly for last several years, and the needs of digital image protection become more important. For the purpose of copyright protection on digital image, the verification of authentication techniques like content authentication, ownership authentication, illegal copy and etc are needed. Digital watermarking, the invisible encryption technique to insert digital watermark into image, the sophisticated perceptual information should be used for providing transparency and robustness of images on watermarking process. In this paper, we implement the algorithm for preventing forged attack, ownership protection and authentication by transforming the wavelet algorithms in frequency domain in terms of human visual system.

고리형 에테르의 반응성에 관한 연구

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.