• Title/Summary/Keyword: naming service

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A Service Discovery Scheme Based on NAPTR Resource Record (NAPTR 자원레코드 기반의 서비스 탐색기법)

  • 권성호;김희철
    • Journal of Korea Society of Industrial Information Systems
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    • v.8 no.3
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    • pp.69-75
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    • 2003
  • NAPRT(Naming Authority Pointer) is a type of resource record specified in IETF RFC 2915. NAPTR enables to register various services in the Domain Name Systems and thus provides a way to discover services available on specific hosts. This paper describes the design and implementation of a Proxy DNS system aimed at supporting NAPTRs. The goal of this work is to study on the feasibility of the service discovery registered in DNS via NAPTR records and provides the result for simplicity and extensibility of implementation through the implementation of a actual Test-bed system This research result can be applied to service discovery in the resource information management for high performance GRE environments as well as to the implementation of DNS infrastructure for the ENUM.

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Implementation of Data Storage Media Control and Command(DSM-CC) Core User-to-User Interface for MPEG-2 Bit Stream Transport

  • Park, Seong-Jong;Kim, Yong-Han;Kim, Jae-Woo;Lee, Ho-Jang;Shim, Jae-Kyu;Kim, Jae-D.;Koh, Jong-Seong
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 1998.06b
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    • pp.79-84
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    • 1998
  • This paper describes implementation of the core DSM-CC UU interface. It briefly describes the reference model for the DSM-CC and related standards that should be reviewed for the implementation. The Common Object Request Broker Architechture, Revision 2.0 (CORBA 2.0) is sued as a remote procedure call (RPC) scheme for the UU Interface. Entire system was implemented with C++ on Windows NT platforms. The implementation procedure has been decomposed ito two tasks. The first task is to implement the Naming Service for service navigation. The Naming Service is one of the CORBA Services that extend the core CORBA specification. A client GUI is implemented for easy navigation among various services. The second task is to construct multimedia server and client for a Video-on-Demand (VoD) system. MPEG-2 Transport Stream is transported via ATM AAL5 using the Windows Socket 2.2 ATM extension API. A GUI enables the user to navigate the service domain and select a program. After the selection the user can control the MPEG-2 stream with VCR-like buttons.

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Design and Implementation of Proxy DNS for Supporting ENUM Service (ENUM서비스를 위한 Proxy DNS설계 및 구현)

  • 권성호;김희철;이용두
    • Proceedings of the IEEK Conference
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    • 2002.06a
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    • pp.351-354
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    • 2002
  • NAPTR(Naming Authority Pointer) is a type of resource record specified IETF RFC 2915. NAPTR enables to register various services in tile domain name systems and thus Provides a way to discover services available on specific hosts. This paper describes the design and implementation of a proxy DNS system aimed at supporting NAPTRS. The goal of this work is to study on the feasibility of the service discovery registered in DNS via NAPTR records. This research result can be applied to service discovery in the resource information management for high performance GRID environments as well as to implement generic ENUM services

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The Proposed UMA Mode in DMB CAS Authentication Process (비인가 무선접속 모드를 이용한 디지털 멀티미디어 방송의 제한 수신시스템의 인증 제안)

  • Oh, Se-Kab;Kang, Heau-Jo
    • Journal of Advanced Navigation Technology
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    • v.12 no.3
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    • pp.239-244
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    • 2008
  • In this paper refer to the digital multimedia mobile phone with the combination of broadcasting and the communication the unity of wire and wireless solution that can provide the UMA(Unlicensed Mobile Access) function is added. In UNC(Universal Naming Convention) in the case of CAS(Conditional Access System) is supported, the device(mobile phone) is authenticated through AP and then following the method of broadcasting signal the user can view the wanted contents as long as they want and for this matter the service charge system are proposed.

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A Study on the Name of Public Libraries in Korea (우리나라 공공도서관 이름에 관한 연구)

  • Kim, Young-Seok
    • Journal of the Korean Society for Library and Information Science
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    • v.56 no.2
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    • pp.255-276
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    • 2022
  • This study aims to analyze the names of public libraries in Korea to reveal the problems of naming and suggest alternatives of naming. As of the end of 2020, 937 out of 1,172 public libraries, excluding 235 libraries of the Provincial & Municipal Education Offices, were divided into three groups by library service target and operating organization, and each library name was analyzed. The study reveals that there were 8 basic types and 31 detailed types of local library names, and 5 basic types and 18 detailed types of children's and youth libraries. In the case of private libraries, it was found that there are 5 types of names. The study also reveals that there are several problems in naming, such as the use of two or three place names in one name, the use of unnecessary modifiers, and the indication of library founder and grade.

Implementation of MIB/MIT in CORBA based Network Management System (CORBA 기반 네트워크 관리 시스템에서 MIB/MIT 구현)

  • Cho, Haeng-Rae;Kim, Chung-Su;Kim, Young-Tak
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.28 no.2B
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    • pp.117-128
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    • 2003
  • The network management becomes more complicated due to the growth of network technology and introduction of a large number of new multimedia services. TINA has appeared as a concept for the advanced network management system platform using the information technology such as distributed processing and object oriented modeling. Since TINA is on the basis of DPE (Distributed Processing Environment), it can manage networks and services for open telecommunications. In this paper, we propose an implementation strategy of the MIB/MIT to federate various CORBA objects in CORBA based network management system implementing TINA DPE. The proposed strategy is novel in the sense that it can support the distribution of MIB/MIT that is well matched with the distributed component architecture of TINA DPE, and it can also support the scoping and filtering services on the MIT using CORBA Naming Service.

Network Management System Based upon Mobile Agent using JNUI (JNDI를 이용한 Mobile Agent 기반 망관리 시스템)

  • 김정철;송왕철
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 1999.11a
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    • pp.406-410
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    • 1999
  • This paper supposes the SNMP network management system based upon Mobile Agent using the Naming and Directory Service, which is JNDI(Java Naming Directory Interface) technology. The Mobile Agent network system is expected to provide a solution for the conventional centralized network system. So, We have designed and implemented the network management system based upon Mobile Agent using JNDI

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Implementation of Satellite Imagery Information System for Korean Meteorological Administration

  • Chang, Eun-Mi;Park, Jong-Suh;Suh, Ae-Sook
    • Korean Journal of Remote Sensing
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    • v.23 no.3
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    • pp.229-236
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    • 2007
  • Scattered satellite images were collected and converted from TDF to HDF as a standard format. We reviewed all the metadata on the images domestic and abroad and set up the metadata for the meteorological satellite images and naming rules in KMA. The satellite information search system that meteorological satellite images were in service with metadata for public and academic fields was implemented for quick search and download. This system will facilitate satellite images for various academic purposes beyond KMA and management functions of the system make routine workflow to manage satellite images in an ease and standardized way.

Object-Oriented Caching System by using CORBA Naming Service (CORBA 명명 서비스를 이용한 객체지향 캐싱시스템)

  • Hong, Seong-Jun;Kim, Yeong-Jae;Han, Seon-Yeong
    • The Transactions of the Korea Information Processing Society
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    • v.5 no.3
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    • pp.732-740
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    • 1998
  • 현재의 캐싱 시스템은 멀티미디어와 같은 방대한 자료를 처리하기에는 대역폭과 지연 문제가 발생한다. 그러므로 이 문제를 해결하기 위해서 본 논문은 분산 환경에서 멀티미디어 응용에 적합한 객체 지향적인 캐싱 시스템을 설계 및 구현하였다. 본 객체지향 캐싱 시스템은 세가지 특징을 가진다. 첫째는 CORBA 명명 서비슬르 이용함으로써 URN(Uniform Resource Name)기반의 객체에 대한 투명성을 제공한다. 둘째는 자바 애플릿을 이용함으로써 웹과 CORBA의 통합 환경을 제공한다. 그리고 첫째는 서버들간의 부하분담(load balancing)을 지원한다.

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Expansion of EPCIS and EPCDS for Efficient Distributed Logistics Information Management (효율적인 분산 물류정보 관리를 위한 EPCIS와 EPCDS의 확장)

  • Kim, Ji-Ho;Shin, Gi-Won;Park, Dae-Won;Kwon, Hyuck-Chul
    • Journal of KIISE:Computing Practices and Letters
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    • v.16 no.11
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    • pp.1076-1080
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    • 2010
  • EPCglobal Network is based on the Electronic Product Code(EPC) and rapidly opening up to many enterprises that have close relationships with each other. Since a huge amount of logistics Information is distributed in the EPCglobal Network, it needs to manage them effectively. Global logistics companies and institutes are studying and setting up the standards about EPC Information Service(EPCIS), Object Name Service (ONS) and EPC Discovery Service(EPCDS) in the RFID and EPC-based logistics information network. In this paper, we propose expanded EPCIS and EPCDS that are satisfy EPCglobal standards and enable more effective logistics information management.