• Title/Summary/Keyword: Chung Nam Dae

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Behavioral Analysis of Revisiting Tourism for Chung Nam Dae Sightseeing Site (청남대 관광객의 재방문 행태에 관한 연구)

  • Rhee, Hyun-Jae
    • The Journal of the Korea Contents Association
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    • v.13 no.3
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    • pp.370-380
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    • 2013
  • The research is basically designed to reveal a revisiting behavior for Chung Nam Dae which is inherently characterized sightseeing site. Distributional lag model is tentatively employed to analyze economic factors such as entrance fee and a different level of income. Empirical findings investigate that the revisiting behavior that is associated with a long run effect is more closely connected to the level of national income, but not the level of incomes in Chung Cheong region and Chung Buk province as well. As far as revisiting intention concerns, the entrance fee tends to affect to it by a shorter distributional lag, but the level of income affects to it by way of a pretty much longer distributional lags. To this end, perceived value for Chung Nam Dae should be exposed in order to induce a re-visitor. Such a goal could be attainable by taking care of its system for entrance fee, expanding facilities, re-branding, service improvement, and developing useful programs. Also, setting up an inter-connected networking system with a sightseeing site around is highly recommended.

A Context-based Device Recommendation System in Ubiquitous Environments (유비쿼터스 환경에서의 상황 기반 디바이스 추천 시스템)

  • Choi, Hwan-Soo;Kang, Sun-Hee;Lee, Yong-Dae;Jang, Seo-Yoon;Park, Won-Ik;Park, Jong-Hyun;Kim, Young-Kuk;Kang, Ji-Hoon
    • Proceedings of the Korea Information Processing Society Conference
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    • 2007.11a
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    • pp.903-906
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    • 2007
  • 유비쿼터스 컴퓨팅 환경이란 생활 속에 존재하는 컴퓨팅 자원들을 이용해 사용자가 언제 어디에서든 편리한 서비스를 제공받을 수 있는 환경을 의미한다. 유비쿼터스 환경에 존재하는 수없이 많고 다양한 컴퓨팅 자원들을 사용자가 최적으로 사용하기 위해서는 사용자가 어떤 상황에 있으며 이때 어떤 자원이 사용자의 현 상황에서 가장 적절한지를 판단하는 것이 반드시 필요하다. 본 논문에서는 이를 위하여 사용자가 현재 존재하는 유비쿼터스 공간에서 사용자의 상황을 인식하고 사용 가능한 최적의 자원들을 공유할 수 있도록 추천해주는 상황 기반 디바이스 추천 시스템을 제안한다. 우리의 추천 시스템은 상황에 따른 사용자 개개인의 특성이 고려된 사용자의 개인정보 및 규칙들을 이용하여 사용자의 상황에 최적의 디바이스를 추론한다. 향후 제안한 서비스 추론 방법은 유비쿼터스 환경에서 더 나은 개인화 서비스 시스템의 개발 및 운용을 효과적으로 지원할 수 있을 것으로 기대된다.

Analysis and Design of Virtual Machine for Embedded System (임베디드 시스템을 위한 가상머신 분석 및 설계)

  • Baek, Dae-Hyun;Jung, Myung-Jo;Ahn, Hee-Jung;Park, Hee-Sang;Lee, Cheol-Hoon
    • Proceedings of the Korea Information Processing Society Conference
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    • 2002.11a
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    • pp.543-546
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    • 2002
  • 최근들어 IT 산업이 급속도로 발전하면서, 리소스가 제한된 작은 기기들의 사용이 비약적으로 증가하는 추세에 있다. 이들 기기들에 플랫폼 독립성(Platform Independency), 보안성(Security), 이동성(Mobility) 등의 장점을 포함하고 있는 자바 환경을 적용하려는 연구가 계속되고 있는데, 자바 환경의 핵심인 자바가상머신(Java Virtual Machine: JVM) 임베디드 시스템이나 모바일 시스템과 같이 작고, 자원이 제한적인 장치에 탑재하기에 너무 큰 용량(footprint)을 차지한다. 이를 해결하기 위해 좀더 경량화한 가상머신이 필요하였다. 본 논문에서는 네트워크 연결 능력이 있고 적은 리소스를 가진 다양한 기기들에 적합한 최소 크기의 표준 자바 플랫폼에 대한 Configuration 인 CLDC(Connected, Limited Device Configuration)에서 정의하고 있는 K가상머신(K Virtual Machine: KVM)에 대해 분석하고 설계한 내용을 기술하고 있다.

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A bi-directional transmission of Railway signal for mass information (다정보 철도신호의 양방향 전송)

  • Park, Jeong-Soo;Jang, Dae-Sik;Ahn, Sang-Kwon;Kim, Yang-Mo
    • Proceedings of the KIEE Conference
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    • 1996.07a
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    • pp.632-634
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    • 1996
  • In modern train systems, the high-speed and the high-density of train operation have been required. Effective train control systems need various information interchanged between the ground-site and on-board devices. So the systems are essential to the digital systems to admit lots of information and to raise the accuracy of transmission. In this paper, it is dealt with n bi-directional transmission of digital information between on-board devices and ground-site. Especially, this paper shows the experiment of bi-directional transmission of mass information by using transponder.

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A HDLC application for data transmission in railway communication (철도 신호 통신에서 데이터 송수신을 위한 HDLC의 적용)

  • Chang, Dae-Sik;Park, Jeong-Soo;Ahn, Sang-Kwon;Kim, Yang-Mo
    • Proceedings of the KIEE Conference
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    • 1996.07a
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    • pp.629-631
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    • 1996
  • Recently, to increasing the transportation efficiency is to be a important view points in modem railway systems. Therefore the railway communication has an important meaning for the safety of train traffic. In this paper, we have proposed to use HDLC protocol for ground-to-train data transmission, which has some merits of efficiency in data transmission, reliability and bit transparency. Also we describes the HDLC application for data transmission in railway communication.

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Bi-directional information transmission in MAGLEV (자기부상열차에서의 양방향 정보전송)

  • Ahn, Sang-Kwon;Park, Jeong-Soo;Chang, Dae-Sik;Kim, Yang-Mo
    • Proceedings of the KIEE Conference
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    • 1996.11a
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    • pp.434-436
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    • 1996
  • This paper deals with the signal communication system for MAGLEV which is indispensible to train control with safety and high speed operation. Therefore it is necessary for signal system to ensure high speed transmission. massive transmission, low error rate, and reliability of information. And the ensured information should be transmitted between ground and on-board for safety and high speed operation. For these reasons, we have considered the guaranteed reliability by applying FSK method and HDLC protocol. Because HDLC has the advantages of high efficiency, high reliability, low bit rate, and bit transparency. HDLC is the appropriate method for data transmission in MAGLEV.

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Development of Continuous Flow Microwave Digestion Procedures for Analysis of Trace Metal in Water Using Ion Chromatography

  • Youn Doo Kim;Gae Ho Lee;Hyung Seung Kim;Dong Soo Kim;Kwang Kyu Park
    • Bulletin of the Korean Chemical Society
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    • v.15 no.9
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    • pp.786-791
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    • 1994
  • A simple and rapid sample pretreatment process necessary for determination of metal oxides in water was proposed. Samples were injected into the continuous-flow tube installed inside the microwave oven and the treated samples were cooled before entered to the Ion Chromatography (IC) or Inductively Coupled Plasma (ICP). By coupling this microwave digestion system with IC or ICP, a fully automatic analytical procedures may be easily established. In this study, two different types of digestion methods were considered; the open tubing method (OTM) and the restraint tubing method (RTM). The RTM was proved to be 3 times faster in digestion period and 10 times higher in detection range than the OTM. Validation of proposed sample digestion system was carried out by using an ICP. The results showed that both of continuous-flow methods, the OTM and the RTM were comparable in accuracies with the conventional batch-type vessel digestion method.

A Integration of Collaborative Work Management and Configuration Management (협업관리와 형상관리 의 통합)

  • Dae-Yeob Kim;Cheong Youn
    • Proceedings of the Korea Information Processing Society Conference
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    • 2008.11a
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    • pp.566-569
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    • 2008
  • 본 논문은 워크스페이스(workspace) 기반의 협업개발 시스템과 소프트웨어 형상관리(Software Configuration Management, SCM) 시스템의 통합에 관하여 논한다. 협업개발 시스템은 개발 구성원들 간의 유기적인 의사소통 및 산출물에 대한 버전관리 기능 등을 제공한다. 여기에 프로젝트 및 액티비티를 중심으로 소프트웨어 개발 프로세스 전반에 걸친 문서의 체계적인 관리에 중점을 둔 형상관리 시스템을 결합하여 조직 내 협업 개발과 체계적인 형상관리를 수행할 수 있도록 하였다.