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장주기 및 유동성분을 고려한 부유식방파제의 방파성능 개선
윤재선,조용식,Yoon. Jae-Seon,Cho. Yong-Sik 한국방재학회 2011 한국방재학회논문집 Vol.11 No.1
In this study, a series of laboratory experiments are carried out to analyze fluid behaviors around multi-arranged (2 pieces) floating breakwaters with various parameters such as distance between structures, wave periods and steepness. The rate of wave transmission is shown to be affected directly by wave periods of incident waves and the breakwaters with multi-arranged structures show the highest rate of wave protection compared with other cases. The velocity fields around the breakwaters are measured by using the Laser Doppler Velocimetry system. The transmission coefficients are also measured in laboratory experiments. Finally, laboratory observed data are compared with numerical experimental results and analyzed in detail. 본 연구에서는 단독형 및 2열형(multi-arranged (2 pieces)), 3열형(multi-arranged) 부유식방파제에서의 구조물간 거리와 흘수, 형상을 변화시키고 파의 주기와 파형경사를 변화시키며, 다양한 변수변화에 따른 영향을 분석하였다. 부유식방파제의 흘수변화는 전달계수에 직접적인 영향을 주며, 비교적 장주기에 해당하는 조파조건에선 단독형과 2열형 부유식방파제보다 3열형 구조에서 높은 방파효율을 나타내었다. 수리모형실험의 결과 검증을 위하여 수치모형과 동일한 조건하에 실험을 하고 LDV시스템을 이용하여 각 부유식방파제에서의 유동장을 측정하였으며, 수리모형실험을 통하여 그에 따른 전달계수을 분석하였다.
윤재선,최광표,이두성,홍광석 成均館大學校 科學技術硏究所 1999 論文集 Vol.50 No.1
In this paper, we present a speech recognition game, "Voice Illust Magic". "Voice Illust Magic" is on-line windows game using speech recognition algorithm HMM. Because this game can be performed by not only the mouse and keyboard but also speech recognition, the users can use the computer easily. The speech recognition process of computer games detects the endpoint of input speech automatically which is received through the microphone and then extracts the feature parameter, Mel cepstrum. The VQ sequences of input speech are compared with the reference models of word unit and the optimal model is selected among reference HMMs. The puzzle games transfer the message of the recognized game command which performs the same operation as the keyboard and mouse into the windows interface. Since input speech is not compared with all reference patterns but the reference patterns of each state, this method can reduce the recognition time and can improve the recognition rate.
일본의 국제화 대응유형과 지방자치단체의 국제화 대응에 관한 연구
윤재선 한국지방행정연구원 1997 地方行政硏究 Vol.12 No.2
Nowadays, the term $quot;internationalization$quot; is used worldwide. this study explains the Japanese use of internationalization. what do the Japanese think about it, how did they traditionally cope with it, and when Japan was unified, what specific characteristics did they share with their neighbours during internationalization? Before Unification, the Japanese used internationalization in different ways. after Japan was unified, there were several ideological turning points white became the period of internationalization. the modern Japanese understanding of internationalization, in respect to the economy, started about 1960. the Japanese, according to materials studied for this thesis, tended to follow western thought and to exclude Asian thought and culture in the internationalization of their government from the federal to the municipal levels. The Japanese intended to cutback or evade relations with the East before Japanese modernization. this kind of viewpoint should be criticized. I tried to analyse corresponding models of historical studies in Japan and emphasize international relationships with Eastern countries from the Meiji Yusin Period. From the analysis of corresponding models, I concluded that the Japanese copied the Western countries. The Japanese tended to think their invasions of Eastern countries were internationalization, in the name of modernization. That is to say, I showed that the traditional Japanese understanding of internationalization ment the Japanese copied ideologies when they were weak and they periodically implemented expansionist policies when they accumulated power I hope that this thesis provides useful guidelines for understanding and positive growth as Japan continues to develop internationalization in the coming twenty first century.
윤재선 한국지방행정연구원 2001 地方行政硏究 Vol.15 No.1
It is discussed about intergovernmental relations(IGR) in federation and unitary nation. But IGR is a historical product in changing process of American Federation System. IGR is the dynamic concept of expressing cooperation and conflict relationships among all level of government. It is accustomed to the word IGR around the world and is usually used in academic and political arena. Having discussed that IGR concept can be applied in a unitary nation, this study put principal research objective on groping for the nature and prospects of IGR in Japan as a unitary nation. Therefore, focusing on the intergovernmental relation in Japan, this study suggests the essential alternatives for developing the IGR in Japan. Muramatz, Nishio, Amagawa, The Study Group of IGR etc. are famous scholars which have studied IGR in Japan. It is recommended that local government play a central role in carrying out important local development projects along with raising the capacity of local government autonomy to actively cope with the citizen's demands. IGR has been a lasting problem after war in Japan.