• Journal of Korean Electronics
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• v.4 no.5
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• pp.29-32
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• 1984

• The Korean Nurse
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• v.33 no.1
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• pp.52-64
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• 1994

Since 1963 when the graduate program in nursing was initiated in Korea, more than 2,000 students enrolled in the program have published their theses or dissertation papers. However, a few of the study papers have been confined one system, which prohibits them from being used as references by others. This research study provides a database for the nursing thesis and dissertation papers published since 1967 in Korea. This allows for those who are interested in nursing to retrieve the information in effective ways. The retrieval networks as follows: 1) The data is sent via PSTN or DACOM NET to Chonrian by Yonsei Nursing Policy Research Institute. 2) Chonrian saves data. 3) Members of Chonrian retrieve the data through PSTN or DACOM NET. The database is comprised of the title of the papers; school; graduate year.

• 정보화사회
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• s.181
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• pp.29-31
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• 2006

데이콤(대표 박종응 www.dacom.net)은 지난 5월 29일, 국내 최초로 무선 인터넷 전화 서비스인 와이파이(Wi-Fi)폰 서비스를 6월부터 일반 기업을 대상으로 상용화한다고 밝혔다.이 서비스는 기존 무선랜 환경을 기반으로 이동형 단말기인 Wi-Fi폰을 통해 구내.시내.시외.국제.이동전화 등을 제공하는 서비스. 기업내 구축돼 있는 무선랜스위치와 AP(Access Point)를 이용, 무선으로 VolP 서비스를 제공하는 방식이다. 데이콤에 따르면, 지금까지 070 등 유선을 기반으로 한 서비스 제공은 있었지만, 이동형 무선단말기를 통해 인터넷전화(VolP)서비스를 상용화하기는 이번이 처음이다. 지금까지 인터넷전화를 이용하기 위해선 별도의 070번호를 새로 부여받아야 했지만, 데이콤의 이번 와이파이 서비스는 시내번호 이동시 기존 시내전화 번호를 유지하면서 인터넷전화로 전환이 가능, 인터넷전화 서비스 활성화에도 큰 몫을 할 것으로 데이콤은 기대했다. 데이콤은 앞으로 $\Delta$무선랜 서비스를 이용 중이며, $\Delta$본.지사간 통화요금을 절감하고자 하는 기업$\Delta$IP기반의 사무실 환경개선을 희망하는 중대형 기업 $\Delta$호텔이나 병원, 대형 쇼핑몰처럼 선 없는 쾌적한 통신환경을 필요로하는 고객 중심으로 와이파이 서비스를 적극 확대해 나갈 계획이다.데이콤은 앞으로 Wi-Fi폰을 통해 음성 뿐 아니라 향후 영상 멀티미디어까지도 송수신 할 수 있는 서비스 개발에 박차를 가하기로 했다.

• Asia pacific journal of information systems
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• v.8 no.2
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• pp.53-67
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• 1998

The explosive growth of the Web is providing end-users access to ever-increasing volumes of information. The resources of legacy systems and relational databases have also been made available to the Web browser, which has become an essential business tool. Recently, model management on the Internet/Web is also proposed with its conceptual design or prototypical system like DecisionNet and DSS Web. However, they are also suffering from the same symptoms as the Web, Although we can identify the elements of a page with HTML tags and (declare) the relationships among the various document elements, they are semantically opaque to computer systems and have no domain-specific meaning. However, HTML is not extensible, so developers are forced to invent convoluted, non-standard solutions for embedding and parsing data. Extensible Markup Language (XML) is a simplified subset of SGML that has many benefits for folks who want to improve structure, maintainability, searchability, presentation, and other aspects of their document management. This paper proposes a structured markup language for model representation and management on the Web as an XML application. The language is based on a conceptual modeling framework, Object-Oriented Structured Modeling (OOSM), which is an extension of the structured modeling.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.46 no.6
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• pp.1-10
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• 2009

In a network-based approach such as Proxy Mobile IPv6 (PMIPv6), the serving network controls the mobility management on behalf of a Mobile Node (MN), thereby eliminating a MN from any mobility-related signaling. Although PMIPv6 is being standardized by the IETF NetLMM WG, PMIPv6 still suffers from a lengthy handover latency and the on-the-fly packet loss during a handover. Therefore, this paper presents an enhanced fast handover scheme for PMIPv6. The proposed handover scheme uses the Neighbor Discovery message of IPv6 to reduce the handover latency and packet buffering at the Mobile Access Gateway (MAG) to avoid the on-the-fly packet loss during a handover. In addition, it uses an additional packet buffering at the Local Mobility Anchor (LMA) to solve the packet ordering problem. We evaluate the performance of the proposed handover scheme using both analytical model and simulation. The numerical analysis shows that the proposed scheme has a relatively shorter handover latency. Simulation results demonstrate that the proposed scheme could avoid the on-the-fly packet loss and ensure the packet sequence.