• Title/Summary/Keyword: object library

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A Study on Civil BIM Description Neutral Library Development Direction for modeling the Construction Spatial Information (건설 공간 정보 모델링을 위한 토목 BIM 묘사 중립 라이브러리 개발 방향)

  • Kang, Tae Wook;Lee, Jae Wook;Lee, Woo Sik;Choi, Hyun Sang
    • Journal of Korean Society for Geospatial Information Science
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    • v.20 no.4
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    • pp.145-151
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    • 2012
  • The purpose of the present study is to suggest the development direction for the neutral library which can describe the parametric modeling and design algorithm to design the construction spatial information which is known as BIM. To do this, we surveyed the recent research related to neutral library and analyzed the library technology of BIM modeler such as Revit, Archicad. By using this result, we suggested the development direction based on BIM description script language for the neutral BIM library including the parametric design and the algorithm definition.

Development of 3-D Web Graphic Library Using Java (자바를 이용한 3차원 웹 그래픽 라이브러리의 개발)

  • Jeong, Gab-Joong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.9 no.8
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    • pp.1709-1715
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    • 2005
  • This paper describes the development of 3-D web graphic library for dynamic web graphic design. The 3-D web graphic library developed in this per supports creation of 3-D objects like cube and sphere objects, elimination of hidden line and surface, and the shading of diffuse and specular reflections. It provides, in drawing, perspective projection of an object depth first sort of multiple objects, and wire frame and solid models. It also supports texture mapping function for realistic and dynamic web application in application software. Each created 3-D object gives functions for the scaling, translation, and rotation of itself. It can be used for the development of dynamic web application software and the advertisement of information for business and tourism as a 3-D web graphic library engine. It is written in 'Java' language and runs on web browsers with Java virtual machine without any dependancy of client computer system.

An Object Quality Verification Method for BIM Libraries based on Standardized Drawings in Civil Projects -Focusing on Retaining Wall Case (토목 표준도 기반의 BIM 라이브러리에 대한 객체 품질 검증 방법 연구-옹벽사례를 중심으로)

  • Moon, Hyoun-Seok;Kim, Chang-Yoon;Cho, Geun-Ha;Ju, Ki-Beom
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.4
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    • pp.129-137
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    • 2016
  • BIM libraries for architectural projects have been developed and distributed. However, they do not define physical and logical quality control methods for individual library objects, so there are some difficulties in securing reliability of 3D library models converted from 2D drawings. Because the BIM library contents can be built by participating material and member-fabrication companies, after making individual BIM library objects, a certification process through separate quality verification is very important when delivering as-built BIM libraries. Since the BIM library should have generality for usage, it is necessary to secure the quality of BIM library objects according to consistent verification standards. Therefore, this study suggests a quality verification method for certifying a BIM library object from physical and data perspectives by comparing existing 2D drawings in the BIM libraries built based on standardized 2D drawings from MOLIT. This method could be widely used for quality verification in delivering BIM libraries by companies in the construction sector and operated with rule set data for quality verification of as-built BIM models.

A Design Verification Method for Object-oriented Design Specification (객체 지향 설계 명세서에 대한 설계 검증 방법)

  • Kim, Eun-Mi
    • The Transactions of the Korea Information Processing Society
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    • v.6 no.6
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    • pp.1520-1531
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    • 1999
  • In this paper, we present a first step for developing a method of verifying both safety and correctness of object-oriented design specification. As first, we analyze the discrepancies, which can occur between requirements specification and design specification, to make clear target faults. Then, we propose a new design verification method which aims at detecting faults in the design specification. The key idea of the proposed framework is that all elements to be verified can be extracted based on the requirements specification, safety standards, and design specification given for the target product These elements are expressed using three kinds of tables for verification, and thus, the verification steps can be greatly simplified. Here, we assume that component library, standards for safety and design specification obtained from the Booch's object-oriented design method are given. At the beginning, the designers construct a design table based on a design specification, and the verifiers construct a correctness table and a safety table from component library and standards for safety Then, by comparing the items on three tables, the verifiers verification a given design specification and detect faults in it. Finally, using an example of object-oriented design specification, we show that faults concerning safety or correctness can be detected by the new design verification method.

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A Study on the Characteristics of the Interior Space of Philips Exeter Academy Library by Louis I. Kahn (필립스 엑시터 아카데미 도서관의 내부공간 특성에 관한 연구)

  • Chung Tae-Yong;Kim Nak-Jung
    • Korean Institute of Interior Design Journal
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    • v.14 no.5 s.52
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    • pp.89-97
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    • 2005
  • The purpose of this study is to analyze the interior characteristics of Philips Exeter Academy library by Louis I. Kahn. Kahn's main thoughts of 'what it wants to be ' and 'how it was done' play a important role in this research because these statements act as a clue to understand this library. 'What it wants to be' means the essence and existence of architecture and 'how it was done' shows the tectonic of architecture and construction process to enhance its presence. Most of his works inform that Kahn had consistently applied his thoughts into design process. The thoughts of the essence of library leads Kahn to configurate 3 layers of interior space. The emphasis of tectonic expression is also the characteristics of interior in that structure is the logical part of whole building system rather than concealing object for the exterior of buildings. In Exeter library, interior characteristics are summarized as 3 layers of interior configuration, the order in dynamics, the visualization of construction process, and the relationship between structure and space.

Human Knowledge Structure Analysis for Designing Ontologies: Using Library and Information Science Field (온톨로지 구축을 위한 인간의 지식구조 분석: 문헌정보학 영역을 중심으로)

  • Kwak Chul-Wan
    • Journal of Korean Library and Information Science Society
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    • v.36 no.1
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    • pp.459-477
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    • 2005
  • The purpose of this study is to investigate a fundamental model for categories and relationships among concepts in library and information science field in order to construct an ontology based upon the knowledge construct of human being. Questionnaire and interview were involved for this study, The results shows that students' knowledge structure was different from KDC and DDC schemes. Students had an object oriented knowledge structure and provided four relationship models. These model could provide a fundamental data for ontology construction. Also, it shows that student academic grades influenced their knowledge structures.

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독서자원과 그 협력방안을 위한 시도적 연구-경상북도를 중심으로

  • 김남석
    • Journal of Korean Library and Information Science Society
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    • v.3
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    • pp.1-31
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    • 1976
  • If Y'ational developments are depend on the dex-elopment of regional >ociety and de~.elopment of regional society are rely on intellcctual delrelopment of members of regional society, going abreas! oi economic capacity. Estnhlis!l:r,ent of libraries as a treasure-house of mental resources and its Jet-elopment are inevit-able and important. But in every respect :f modern libraries are not equipped with contemporary devclij;!~i:c:\ulcornert of society. One c~i the resolving problems, like this, opening the door of the liI~-,\ulcornerr:~fa-c ilities, as one object, which located in every regional areas, u.9ng the existing facilities, the width of the library services mus: I)c opened. I-' ;- I n,> study is aimed at like the following: 1. is analysizing the situation ~vhich the library facilities of one ti:u~:sa!~d five hundred and fifty nine located here and there ir, Ii.;~-ui:gij~opkr ovince in Korea and s i s t ~t.l lousand seven hundred aid tliirl:~ six village libraries, for connecting as a library networks. 2. Tl\ulcornerc ivhole libraries in Kyungbook province and dividing into four ::arts as a Daegu, Phohang, Ahndong and Kimchun area as a transportation area, school area and resources area which exhibiting the view-point of helping-net~vorksl ike the following,

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A Building Modeling using the Library-based Texture Mapping

  • Song, Jeong-Heon;Cho, Young-Wook;Han, Dong-Yeob;Kim, Yong-Il
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.744-746
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    • 2003
  • A 3D modeling of urban area can be composed the terrain modeling that can express specific and shape of the terrain and the object modeling such as buildings, trees and facilities which are found in urban areas. Especially in a 3D modeling of building, it is very important to make a unit model by simplifying 3D structure and to take a texture mapping, which can help visualize surface information. In this study, the texture mapping technique, based on library for 3D urban modeling, was used for building modeling. This technique applies the texture map in the form of library which is constructed as building types, and then take mapping to the 3D building frame. For effectively apply, this technique, we classified buildings automatically using LiDAR data and made 3D frame using LiDAR and digital map. To express the realistic building texture, we made the texture library using real building photograph.

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Digital Library System by Advanced Distributed Agent Platform

  • Cho, Young-Im
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.4 no.1
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    • pp.29-33
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    • 2004
  • I propose a personalized digital library system (PDLS) based on an advanced distributed agent platform. The new platform is developed by improving the DECAF (Distributed Environment-Centered Agent Framework) which is one of the conventional distributed agent development toolkits. Also, a mobile ORB (Object Request Broker), Voyager, and a new multi agent negotiation algorithm are adopted to develop the advanced platform. The new platform is for mobile multi agents as well as the distributed environment, whereas the DECAF is for the distributed and non-mobile environment. From the results of the simulation the searched time of PDLS is lower, as the numbers of servers and agents are increased. And the user satisfaction is four times greater than the conventional client-server model. Therefore, the new platform has some optimality and higher performance in the distributed mobile environment.

A Study of the 780 Music of DDC (DDC에 있어서의 음악분야 분류상의 제문제)

  • Hahn Kyung-Shin
    • Journal of the Korean Society for Library and Information Science
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    • v.26
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    • pp.75-112
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    • 1994
  • The purpose of this study is to investigate the problems concerning 780 music division of DDC. The object is especially arrangement of 780 music in the 20th edition of DDC which is the complete revision. The result is summarized as follows : 1. Although music is an important subject in humanities, especially in arts, it was classified as one division (780) not class. 2. The arrangement of 780 music is severely west-oriented music theory, vocal music and instrumental music. 3. Classification number of 780 music becomes longer because of the limitation of decimal notation. 4. 780 music division of DDC neglects music theory and emphasizes music practicing, especially performance. 5. The assignment of classification number is unbalanced, especially between theory and practice, composition and performance, and among sub-sections of vocal and instrumental music. 6. Many important subject are omitted in DDC music schedule, for example, musicology and branches of musicology, composition and traditional instruments of many countries. 7. Employment of terminology is often improper and inconsistant.

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