• Journal of Korean Library and Information Science Society
• /
• v.46 no.1
• /
• pp.1-23
• /
• 2015

The purpose of this paper is to development an algorithm for FRBR implementation(functional requirements for bibliographic records), analyzing KORMARC bibliographic records by work types. For this purpose, it was utilized analyzing home and foreign case studies including OCLC and LC's algorithm. Analyzing the experimental data from the Korean National Library's bibliographic records, it was extracted from identifying elements by FRBR's four bibliographic entities. To cluster a related works by work-set, the algorithm was designed to construct the authorized access points as a combination of an author name and a title from the record. I suggested that it should be wholly improved a quality of existing bibliographic records and level of data input to development a FRBR algorithm in Korean libraries.

• Journal of the Korean Society for information Management
• /
• v.29 no.1
• /
• pp.231-251
• /
• 2012

In this study, Linked Data was used for extending bibliographic data, because Linked Data provides shareable identifiers, data structures, and link information. Linked Data is especially efficient in expanding bibliographic data integrated with bibliographic ontology. Therefore, Linked Data and bibliographic ontologies were analyzed and available Linked Data was suggested. By linking between meta-data schemes, bibliographic data, and authority data, issues for the effective Linked Data sharing were suggested: 1) selecting proper Linked Data for each bibliographic organization, 2) linking between different Linked Data, and 3) developing their own Linked Data for each bibliographic organization.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.16 no.2
• /
• pp.90-97
• /
• 2002

In this paper we study the performance test items and improvement plans of surge protective devices for low-voltage power circuits used in railway system. Above of all, the sources of electromagnetic interference in railway system are researched. And then we compared domestic railway standard with IEC and IEEE standards far the test items and methodologies of surge protective devices. Through the investigations, we found that the domestic standard is behind in the number of test items and methods on surge protective devices. As the countermeasures, we suggest removing component tests of surge protective devices, separating standards for power and signal standards, and using international surge waveform. In applying to domestic railway surge protective devices, surge limiting voltage measuring and surge endurance tests by international standard methods are good result.

• Journal of the Korean Society for information Management
• /
• v.39 no.1
• /
• pp.309-330
• /
• 2022

Intellectual structure analysis, which quantitatively identifies the structure, characteristics, and sub-domains of fields, has rapidly increased in recent years. Analysis techniques traditionally used to conduct intellectual structure analysis research include bibliographic coupling analysis, co-citation analysis, co-occurrence analysis, and author bibliographic coupling analysis. This study proposes a novel intellectual structure analysis method, Keyword Bibliographic Coupling Analysis (KBCA). The Keyword Bibliographic Coupling Analysis (KBCA) is a variation of the author bibliographic coupling analysis, which targets keywords instead of authors. It calculates the number of references shared by two keywords to the degree of coupling between the two keywords. A set of 1,366 articles in the field of 'Open Data' searched in the Web of Science were collected using the proposed KBCA technique. A total of 63 keywords that appeared more than 7 times, extracted from 1,366 article sets, were selected as core keywords in the open data field. The intellectual structure presented by the KBCA technique with 63 key keywords identified the main areas of open government and open science and 10 sub-areas. On the other hand, the intellectual structure network of co-occurrence word analysis was found to be insufficient in the overall structure and detailed domain structure. This result can be considered because the KBCA sufficiently measures the relationship between keywords using the degree of bibliographic coupling.

• STIMA Bulletin
• /
• s.1
• /
• pp.33-35
• /
• 2004

인터넷과 웹이 발달하면서 이전 보다 훨씬 많은 양의 정보를 점하고 활용하게 되었으며, 또한 전통적인 서지 정보 이외에 인터넷과 웹에서 획득한 웹 문서,전자 저널, 그림이나 파일로 작성된 이미지정보 등 정보의 형태 또한 매우 다양해졌다. 이로 인해 이제는 개인 연구자들이 단순한 정보 탐색뿐만 아니라 다양하고 방대한 정보를 효율적으로 관리하고 활용할 수 있는 방안이 필요하게 되었고 그에 따라 각종 서지 및 정보 관리 프로그램이 출현하게 되었다. 본고에서는 전 세계에서 가장 보편전으로 사용되는 서지 정보 관리 프로그램인 EndNote 및 WriteNote를 소개하고자 한다

• Proceedings of the KIEE Conference
• /
• 2002.07a
• /
• pp.527-529
• /
• 2002

본 논문에서는 저전압 기기의 전자회로를 보호하는 서지보호장치(surge protective devices, SPD)의 기술에 대하여 논의하고자 한다. 먼저 저압 전력계통에서 발생하는 전원장해(power disturbance) 종류 및 서지보호장치와의 상호관계를 고찰하였다. 또한 서지보호장치의 보호소자 및 특성, 구성기법을 고찰하고, 최근 IEC 및 IEEE 규격을 소개하고자 한다. 마지막으로 국내의 문제점 및 발전방안을 제안하였다.

• Proceedings of the Korean Information Science Society Conference
• /
• 1998.10b
• /
• pp.377-379
• /
• 1998

본 논문에서는 서지데이터베이스 품질향상을 위해 사용자의 요구사항을 기초로 하여 논문형태의 데이터베이스 특성을 파악한 후 표준입력 필드에 해당하는 기준을 정하고 데이터베이스 구축에 적용하는 입력시스템 모델을 구현하고자 한다. 데이터베이스 제작자들의 오류를 최소화하여 정보사용자의 만족도를 충족하기 위한 데이터베이스 구축 방법을 제시하였다. 서지데이터 입력을 위한 표준화된 입력방법을 통해 기존의 편집기를 활용한 텍스트 형태의 데이터베이스 제작시 문제점들을 개선하였으며 사용자 만족도, 데이터 양, 품질향상을 웹을 통한 입력시스템으로 구현하여 서지데이터베이스에 대한 신뢰도를 크게 향상시킬 수 있었다.

• Proceedings of the KIEE Conference
• /
• 2001.10a
• /
• pp.278-281
• /
• 2001

본 연구에서는 철도 시스템에서 발생할 수 있는 서지관련 전자기장해 현상을 고찰하고, 철도 시스템용 서지보호장치가 갖추어야 할 기본 성능을 검토하였다. 서지보호장치 관련 철도규격을 국제규격과 비교 검토한 결과 성능평가 항목에 있어서 개선사항을 발견하였다. 이러한 사항들을 토대로 하여 철도규격의 개정방안을 제시하였다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.17 no.6
• /
• pp.400-407
• /
• 2016

The purpose of this study is to propose a useful method of solving the problem of thermal stability in surge protection devices (SPDs). First of all, the existence of the problem in the developed SPDs was confirmed by experiment. After analyzing the problem, a useful method of solving it is proposed and implemented. An experiment is performed to verify the performance of the implemented device. The results of this study are as follows; it is revealed that the problem of the thermal stability results from the varistor, one of the components in the SPD. A varistor with a built-in thermal fuse is applied to the SPD for the purpose of solving the problem. The experimental results confirmed that the thermal stability was improved by replacing the varistor. As a result of this study, the reliability of radar control units is enhanced and the probability of malfunction is reduced.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.4
• /
• pp.93-102
• /
• 2018

This paper reports a Surge Protective Device (SPD) that is used to protect an automatic metering interface (AMI) power supplies of communication equipment on a low-voltage distribution system from a lightning current. The surge protective device (SPD) can be classified as one-port SPDs and two-port SPDs with decoupling elements depending on the connection type. The protection of internal systems against the lightning current may require a systematic approach consisting of coordinated SPDs. To deal with this, the definition of a lightning protection zone (LPZ) was studied and interpreted through a theoretical review. Because the lightning current resulting from a lightning surge is considerably high, there is limited protection from one SPD; therefore, coordinated cascaded MOV-based SPDs are installed to solve this problem. Regarding the power grid mentioned in this paper, a class II SPD for the low-voltage distribution system installed on the border of LPZ1 and LPZ2, which establish a protection coordination with the Arrester (LA, SA) that corresponds to the LPZO installed on the MOF stage connected to one system were designed to protect various communication (control) equipment, including the automatic meter reading system inside the branch-type electric supply panel of a building, not the incoming side of one system. In addition, performance-related tests were done by a comparison with the existing method through testing, and the optimal design was achieved for the 1-port SPD that uses a series connection and can bleed load current without any decoupling element.