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Synthesis of Chiral Azophenolic Pyridino-18-Crown-6 Ether and Its Enantiomeric Recognition toward Chiral Primary Amines

  • Kim, Jae-kon;Song, Su-Hee;Kim, Jae-Hong;Kim, Tae-Hyun;Kim, Ha-suck;Suh, Hong-Suk
    • Bulletin of the Korean Chemical Society
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    • 제27권10호
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    • pp.1577-1580
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    • 2006
  • The article reports the synthesis and enantiomeric recognition of a new chiral azophenolic pyridino-18-crown-6 ether, (S,S)-6, possessing diphenyl groups as chiral barriers. The association constants for the enantiomeric recognition of chiral primary amines (7-12) using chiral azophenolic pyridino-18-crown-6 ether, (S,S)-6, were determined by UV-visible titration method in acetonitrile at $25{^{\circ}C}$.

Dispersion of Single-Walled Carbon Nanotubes for Display Applications

  • Manivannan, S.;Ryu, Je-Hwang;Jeong, Il-Ok;Lee, Chang-Seok;Kim, Ki-Seo;Jang, Jin;Park, Kyu-Chang
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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    • pp.1625-1628
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    • 2007
  • Dispersion of arc-discharged single-walled carbon nanotubes (SWNTs) has been accomplished by a water soluble polymer wrapping functionalization at room temperature. The treated SWNTs were redispersed in both aqueous and many organic solvents and the solutions were found to be stable.

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다단계 인식기반의 POI 인식기 개발 (Multi-stage Recognition for POI)

  • 전형배;황규웅;정훈;김승희;박준;이윤근
    • 대한음성학회:학술대회논문집
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    • 대한음성학회 2007년도 한국음성과학회 공동학술대회 발표논문집
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    • pp.131-134
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    • 2007
  • We propose a multi-stage recognizer architecture that reduces the computation load and makes fast recognizer. To improve performance of baseline multi-stage recognizer, we introduced new feature. We used confidence vector for each phone segment instead of best phoneme sequence. The multi-stage recognizer with new feature has better performance on n-best and has more robustness.

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오아시스(전통의학정보포털)의 미래모형 설계를 위한 정보화전략계획 연구 (The Study of Information Strategy Plan to Design OASIS' Future Model)

  • 예상준;김철;김진현;김상균;장현철;김익태;장윤지;성보석;송미영
    • 한국한의학연구원논문집
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    • 제17권2호
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    • pp.63-71
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    • 2011
  • Objectives : We studied the ISP(information strategy plan) of oasis spanning 5 years. From this study we aimed at total road map to upgrade the service systematically and to carry out the related projects. If we do it as road map, oasis will be the core infra service contributing to the improvement of TKM(traditional korean medicine) research capability. Methods : We carried out 3 step ISP method composed of environmental analysis, current status analysis and future plan. We used paper, report and trend analysis document as base materials and did the survey to get opinions from users and TKM experts. We limited this study to drawing the conceptual design of oasis. Results : From environmental analysis we knew that China and USA built up the largest TM databases. We did the survey to get the activation ways of oasis. And we did the benchmarking on the advanced services through current status analysis. Finally we determined 'maximize the research value based the open TKM knowledge infra' as oasis' vision. And we designed oasis' future system which is composed of service layer, application layer and contents layer. Conclusion : First TKM related documents, research materials, researcher information and standards are merged to elevate the TKM information level. Concretely large scale TKM information infra project such as TKM information classification code development, TKM library network building and CAM research information offering are carried out at the same time.

Factors Related to Cancer Information Scanning and Seeking Behavior among High School Students in Korea

  • Kye, Su-Yeon;Yun, E-Hwa;Park, Kee-Ho
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권4호
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    • pp.1439-1445
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    • 2012
  • Objective: This paper aimed to determine the relationship between cancer information scanning and seeking experience of adolescents and cancer preventive behavior, perceived cancer risk, and levels of cancer-related knowledge. Methods: The study sample comprised 1,000 second-year students from 6 high schools: the general and vocational school systems were each represented by 1 boys', 1 girls', and 1 coeducational high school. In July 2011, trained researchers visited each classroom, explained the purpose of the study, distributed questionnaires to the students who agreed to participate, instructed them to complete the survey by self-reporting, and collected the completed questionnaires. Results: The students who attended general high schools (as compared with vocational high schools), earned higher grades, consumed more vegetables, had a higher perceived cancer risk, and answered the cancer-related questions more correctly had more cancer information scanning and seeking experience. Conclusion: These results reinforce the importance of cancer prevention health education. Furthermore, the results may help in preparing a strategy that enables people to acquire accurate cancer-related information easily and quickly.

시스템측면에서의 정보센터 개념변화가 사용자 만족도에 미치는 영향에 관한 연구 (A Study of the Effect on the End-User Satisfaction Changing Information Center in Systems Perspective)

  • 윤중현
    • 정보관리학회지
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    • 제20권1호
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    • pp.75-91
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    • 2003
  • 본 연구는 정보기술의 발전과 사용자 중심의 개발환경으로 인해 변화된 정보환경 속에서 정보센터의 새로운 방향 설정을 위해 정보센터의 관리 특성요인과 사용자의 만족도를 중심으로 그 상관관계를 살펴보았다. 본 연구가설의 검증을 위해 서로 다른 정보센터를 활용하고 있는 41명의 사용자로부터 설문을 받아 활용하였다. 조직의 정보서비스에 대한 사용자의 만족도 향상에 유의한 영향을 미치는 것으로 파악된 정보센터와 관련된 활동들을 살펴봄으로써 최근의 사용자 중심의 정보환경 속에서 새롭게 고려되어야 할 사항들에 대해 논의하였다. 본 연구결과는 시스템측면에서 새롭게 변한 정보센터가 사용자들에 대한 서비스활동의 강화를 위해 고려해야 할 사항에 대한 식견을 제공할 것으로 사료되어진다.

Solutions for the Location-Based Services

  • Kim, K.H.;Hong, S.G.;Park, J.H.;Lee, J.H.
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.651-653
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    • 2003
  • As a result of the project 'Development of core technology for open LBS', we developed several solutions such as personal navigation system, mobile game, and emergency system. In this paper, we explain the approach and architecture of these solutions and consider their meaning on spatial information bases and expectation in the future computing environments. The final goal of this suggested solution is to test the efficiency of our open LBS system and verify the applicability and usability in real application environments. Our approaches will be headed to the future ubiquitous computing environments.

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디지털정보서비스를 통한 전문정보센터의 이용자중심 정보서비스 구현에 관한 연구 (A Study on User-centered Information Service Applying Digital Information Service in Special Information Center)

  • 최희윤
    • 정보관리연구
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    • 제29권1호
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    • pp.54-73
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    • 1998
  • 사회의 전반적인 정보화와 정보환경의 디지털화에 따라 전문정보센터의 역할도 변화되어야 한다. 효율적인 정보서비스를 수행하기 위해서는 기존의 정보서비스 체제나 시스템으로부터 발전적인 변화가 필요하다. 본고에서는 다양한 디지털매체와 국내외 통신망의 결합을 통해 부가가치가 높은 서비스를 창출할 수 있는 디지털정보서비스에 대한 이론적인 근거와 구체적인 실천사례를 통해 전문정보센터에서의 이용자중심 정보서비스의 효율적 구현방안을 제시하고자 한다.

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