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5-〔3-(N-Substituted Piperazinyl)Propoxy〕Indan類의 合成과 中樞神經抑制效果
黃熙喆,閔庚鎭,文勝煜,李萬佶,徐丙天 嶺南大學校附設 基礎科學硏究所 1985 基礎科學硏究 Vol.5 No.-
Five new indans, 5-[3-(N-substitued piperaziny) propxy]indans, were synthesized by condensation of 5-(3-bromopropoxy)indan, the intermediate, and N-substituted piperazines. The structure of the compunds were determined by means of IR, NMR spectoscopy along with elemental analysis. Each compound was tested for antimorphine and antiamphetamine effects as part of CNS depressant effects and for muscle relaxant action in mice. Thes compound exhibited less potent activity compared to chlordiazepoxide on CNS depressant effect. Muscle reaxant action of the compounds, the side effect of tranquilizer, however, was much weaker than that of chlordiazepoxide.
황희철,최창,김판구 한국정보처리학회 2006 한국정보처리학회 학술대회논문집 Vol.13 No.1
최근 인터넷 기술의 비약적인 발전으로 웹상에 많은 양의 정보가 존재하고, 많은 사람들이 이를 검색하고 활용하게 되었다. 그러나 기존의 검색방식은 단순히 텍스트 매칭(Text matching) 방법을 사용하고 있어 많은 자료들 사이에서 자신이 원하는 자료를 찾는데 어려움이 있다. 이에 본 논문에서는 검색할 자료의 정보를 바탕으로 그와 유사한 자료를 검색해주는 웹 문서 검색 시스템을 제안하고자 한다. 이를 위해 울산대학교 어휘 지능망인 U-WIN을 기반으로 개념적 밀도와 단어 간의 유사성 측정을 이용하여 의미적인 검색이 되도록 하였다.
황희철 ( Hwang Hee Chul ),임재문 ( Lim Jae Moon ) 한국사진학회 2019 AURA Vol.0 No.42
This study set out to investigate masters of portrait photography including August Sander, who took only portrait pictures of the entire German people and tried to figure out the human character in the huge social structure, Felix Nadar, who showed what oil portraits achieved with photography based on his unique sense, and Yousuf Karsh, who put an emphasis on the inner expressions of people and locational relations between the face and hands and thus made sharpness and black & white prominent clearly in his works. The present study presented the investigator's works consisting of typical photographs in the ways that he planned and worked for two years. There were total 15 works expressing the periodic backgrounds of jazz musicians in the 19th century in modern portrait photography. In the investigator's portrait photography, freedom of expression was oriented toward the performance and communication with the world of the jazz artists, which means that the expression of their facial expressions during their performance makes a piece of art for the photographer and jazz artists and is the starting point of portrait photography as a creation for jazz artists.