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목록규칙상에서 참조의 변천과정에 관한 연구 (A Study on the Historical Developments of References on Cataloging Rules)

  • 이양숙
    • 한국도서관정보학회지
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    • 제34권4호
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    • pp.227-252
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    • 2003
  • 본 논문에서는 목록규칙상에서 참조의 변천과정을 고찰하였다. 참조는 파니찌와 쥬이트의 목록규칙에서는 상호참조라고 하였으며, 카터의 사전체목록에서 처음으로 정의되었다. 파니찌 규칙 이후 보라참조와 도보라참조로 발전하여 AACR2에서 지금까지의 참조에 관한 규정을 망라하여 체계적으로 표현하였다. 참조의 대상은 개인명, 단체명, 서명, 주제명 등이고, 참조의 종류는 보라참조, 도보라참조 이름-서명참조 설명참조의 4가지로 구분하였다. 결국 참조는 동일한 저자나 서명의 상이한 형식을 동일한 접근점으로 하여 관련 저작을 집중하는 유일한 장치로써 특히 현재의 온라인목록에서는 그 기능과 역할이 매우 중요하다.

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서지적 관계유형에 기반한 참조시스템에 관한 연구 (A Study on the Cross-Reference System based on Bibliographic Relations)

  • 이양숙;김태수
    • 한국문헌정보학회지
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    • 제33권4호
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    • pp.65-83
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    • 1999
  • 본 연구는 서지적으로 관련된 저작을 연결하고, 특정 저자의 상이한 이름이나 특정 저작의 상이한 서명을 직접 접근점으로 사용하기 위해, 전거표목을 배제한 시스템을 제안하고 있다. 이를 위해, 특정 접근점과 그 이형(異形)에 대한 참조와 이들간의 서지적 관계유형을 제공할 수 있는 레코드의 형식을 개발하여 참조시스템을 제안하였다. 아울러 전통적인 표목 및 상호참조의 기능을 본 시스템과 관련하여 검토하였다.

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색인언어의 어의적 관계 및 구문적 관계 (Semantic and syntactic relationships of indexing languages)

  • 윤구호
    • 한국도서관정보학회지
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    • 제22권
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    • pp.1-26
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    • 1995
  • Indexes, especially subject indexes, are major tools for information retrieval. To enhance the retrieval effectiveness of subject indexes, the semantic and syntactic relationships of indexing languages are very important elements. This paper examines the afore-mentioned relationships, based on purely the syntax and semantics of Korean language. The outlines of this study are as follows: 1. The characteristics and usages of controlled vocabularies, particularly subject headings lists and thesaury, are reviewed. 2. The semantic relationships, such as equivalence, hierarchical and associative relationships, are defined, and their categories are investigated in detail. Accordingly, the usages of 'See' and 'See also' references are suggested circumstantially. 3. The syntactic relationships are also examined. Particularly, for the syntactic relationships of multiword indexing terms, two kinds of subject entry formats are compared. Since it is more rational for subject headings organized by the principle of context-dependency, the two-fine entry format is recommended for subject indexes. 4. Computerized production techniques of 'See' and 'See also' reference for the semantic relationships of indexing terms are presented. 5. Computerized production techniques of subject indexes representing the syntactic relationships of indexing terms are also presented.

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재귀적 방법에 의한 NURBS 보간기 (NURBS Interpolator with Recursive Method)

  • 백대균;고태조;이재원;김희술
    • 한국정밀공학회지
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    • 제22권5호
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    • pp.45-54
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    • 2005
  • The purpose of this research is to find a simple and accurate NURBS interpolator for CNC systems such as robot, CMM and CNC machine tools. This paper presents a new design of NURBS interpolator for CNC system. The proposed algorithm used the recursive characteristics of NURBS equation, the previous incremental value and chord length for the sake of a constant chord length. Simulation study was conducted to see the performance of the proposed interpolator with reference-word and reference-pulse method. Consequently, an accurate and simple NURBS interpolator was possible for modem CNC systems.

강도비를 적용한 Rice-저항곡선과 변형경화를 고려한 $J_{\delta}$-저항곡선과의 비교 (On Reliability and Comparison of $J_{Rice}$-Resistance considering Optimal Strength Ratio and $J_{\delta}$-Resistance Curves converted from CTOD using Appropriate Strength chosen according to Strain Hardening Level)

  • 장석기
    • Journal of Advanced Marine Engineering and Technology
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    • 제26권1호
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    • pp.59-67
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    • 2002
  • The comparison of $J_{Rice}$-resistance considering a few strength ratio in Rice J-integral formula and $J_{\delta}$-resistance curves converted from experimental CTOD using appropriate strength chosen according to strain hardening level, n=10.6 (A533B steel) and n=8.1 (BS4360 steel) is carried out. The optimal dimensionless strength ratio like the factor of revision, (see full text)reflecting strain hardening level in Rice\`s experimental formula is found out and the reliability of appropriate reference strength chosen according to strain hardening level in different materials is investigated through doing that CTOD is transformed from $J_{\delta}$-integral using relationship between J-integral and CTOD. The results are as follows; 1) The optimal factor of revision is when m equals to 3 in (see full text) for Rice's and the above optimal factor of revision multiplies by coefficient, η in Rice's experimental formula instead of n=2, 2) and the pertinent reference strength for high strain hardening material like BS4360 steel is ultimate strength, $\sigma_{u}$ and for material like A533B steel is ultimate-flow strength, $\sigma_{u-f}$. The incompatible of the behavior of both experimental J-resistance curves using Rice's formula and CTOD-resistance curves for A533B and BS4360 steel by Gordon, et al., could be corrected using the optimal factor of revision in Rice\`s and the pertinent reference strength in J=$m_{j}$${\times}$$\sigma_{i}$${\times}$CTOD.