• Title/Summary/Keyword: Material information

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The Necessity of Technology Information Service for Material & Component Industry in Korea (부품ㆍ소재 산업의 발전을 위한 정보지원사업의 필요성)

  • 이창환;여운동
    • Journal of Korea Technology Innovation Society
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    • v.6 no.1
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    • pp.125-136
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    • 2003
  • This paper studies directions for technology information service on Korea material & component industry which is a main course for the deficit of balance of payments in Korea. We have got survey results through e-mail or fax, for the degree of the necessity of the service and the contents for the service. Finally, we will recommend the check point for the service, and for the policy.

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Material Maintenance Information System for Electric Multiple Unit (도시철도 차량 유지보수를 위한 자재시스템 정보화에 대한 연구)

  • Ahn, Tae-Ki
    • Proceedings of the KIEE Conference
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    • 2006.10d
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    • pp.241-243
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    • 2006
  • To supply the materials the right time, and the right place, it is required some information maintenance system to manage this procedure effectively. In this paper, we represent the standard products classification for EMU and the materials maintenance information system to manage the parts used EMU maintenance efficiently. The standard material classification is matched to G2B code made by the Supply Administration. The implemented material information system can perform various functions such as the inquiry of the number of stocks, the demand of the materials, and etc.

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A Study on the Generation of the Production Material Information of a Building Block and the Simulation of the Block Erection (선체 블록의 물량 정보 생성 및 블록 탑재 시뮬레이션에 관한 연구)

  • Lee K.Y.;Roh M.I.
    • Korean Journal of Computational Design and Engineering
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    • v.11 no.2
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    • pp.115-127
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    • 2006
  • At the initial design stage, the generation process of the production material information of a building block and the simulation process of the block erection, which are required to perform the production planning and scheduling, have been manually performed by using 2D drawings, data of parent ships, and design experiences. To make these processes automatic, the accurate generation method of the production material information and the convenient simulation method of the block erection using the 3D CAD model, which was generated from the initial hull structural design system early developed by us, were proposed in this study. For this, a 3D CAD model for a whole hull structure was generated first, and the block division method for dividing the 3D CAD model into several building blocks was proposed. The generation method of the production material information for calculating the weight, center of gravity, painting area, joint length, etc. of a building block was proposed as well. Moreover, the simulation method of the block erection was proposed. Finally, to evaluate the efficiency of the proposed methods for the generation of the production material information and the simulation of the block erection, these methods were applied to corresponding processes of a deadweight 300,000 ton VLCC (Very Large Crude oil Carrier). As a result, it was shown that the production material information of a building block can be accurately generated and the block erection can be conveniently simulated in the initial design stage.

A study on the material designation in library cataloging (목록에서의 자료종별표시에 관한 연구)

  • 이창수
    • Journal of Korean Library and Information Science Society
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    • v.25
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    • pp.377-404
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    • 1996
  • The purpose of this study is to investigate material designation in library cataloging and to suggest General Material Designation (GMD) and Specific Material Designation(SMD) in Korean. A summary of the study follows. In library cataloging, methods of indicating the type of material are : (1) color-coding, (2) media code as part of the call number, (3) material designation in physical description area or note area, (4) GMD and SMD. GMD is a term indicating the broad class of material to which a bibliographic item belongs. SMD is a term indicating the special class of material to which a bibliographic item belongs. GMD was listed in parenthesis following the title proper before AACR1975 code, but currently it is listed in square brackets after the AACR1975 code. AACR2 was the standard cataloging rule in GMD and SMD terminology. It is suggested that GMD be used in Korean for graphic material, sound recordings, drawings, microform, multimedia, videorecordings, manuscripts, photographs, slides, printed music, motion pictures, printed texts, objects, braille, cartographic materials, computer files and transparenies.

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Estimation of Welding Material Quantity for Shipbuilding at Early Design Stage based on Three-dimensional Geometric Information (3차원 선박형상정보를 활용한 설계초기단계 용접물량 산출)

  • Lee, Jeong-Hoon;Byun, Seok-Ho;Nam, Jong-Ho;Kang, Tae-Won
    • Journal of the Society of Naval Architects of Korea
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    • v.54 no.1
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    • pp.57-62
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    • 2017
  • These days, shipbuilding companies are making an effort to adopt the IT technology in order to improve the production efficiency. One such effort is to utilize a planning and scheduling system to predict the production cost in advance. In this system, assessing the welding material quantity is an important factor. Unfortunately, obtaining the welding material quantity in the early design stage is extremely difficult because the detailed production information, which is essential in deriving the cost associated with welding, is normally available at a later stage. This paper aims at developing a computerized program that produces an index to estimate the welding material quantity in the early design stage. By using only three-dimensional geometric information, the program analyzes the production process and estimates the welding material quantity at any design or production stage when no production information is available. The results can be used for the planning and scheduling system.

A study on Electrical and Optical Properties of Organic Electroluminescent Devices using various Substrates (기판 종류에 따른 유기전기발광소자의 전기적.광학적 특성에 관한 연구)

  • Cho, Jae-Young;Kim, Jung-Yeoun;Kim, Jong-Jun;Oh, Hwan-Sool
    • Proceedings of the IEEK Conference
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    • 2000.11b
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    • pp.25-28
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    • 2000
  • In this paper, three types of organic electroluminescent devices(OELD) were fabricated on mechanically flexible plastic substrate by using vacuum deposition method. The devices consist of a hole transporting material such as TPD, a light-emitting material such as Alq$\sub$3/ and an electron transporting material, blocking material such as PBD. Electrical and optical properties of these OELDs were measured. This paper shows that organic small molecules based on OELD can be successfully deposited on a flexible plastic substrate. This points open the potential for low cost mass production of flexib]e displays, including roll to roll processing.

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A Comparative Study on the Classification System of Material Library (소재도서관 분류체계에 대한 비교 연구)

  • Chung, Ok-Kyung
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.29 no.4
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    • pp.297-317
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    • 2018
  • The purpose of this study is to propose a classification system that can classify various industrial and craft materials consistently and systematically by comparing and analyzing the classification system of materials libraries in domestic and foreign. For this study, it was investigated the operation cases and classification system of domestic and foreign material libraries, and then proposed a method to classify consistently and systematically by comparing and analyzing the classification items of KDC and DDC. The classification system of material library was not classified by subject, but classified into the name of material and type, or the classification system of a material library was divided by Arabic numeral as a general classification system. It is difficult to access and share information because most of material libraries use the classification system developed by the library itself. Therefore, it is necessary to develop a standard classification system to share the information stored in the material libraries.

Problem Analysis of Construction Material Information System (국내 건설자재정보시스템의 문제점 분석)

  • Park, Jun-Ho;Lee, Seul-Ki;Yu, Jung-Ho
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.05a
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    • pp.164-165
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    • 2013
  • Currently, the process of selecting products such as construction materials and equipment in the design phase proceeds based on the reuse of products used in the previous projects or samples from design companies as well as information on the limited products provided from the website of several manufactures. In particular, it is urgently required to formulate a standard product information management system that can be utilized in the BIM-based design environment these days. In Korea, domestic construction information classification system was developed, but its utilization has been underestimated since continuous studies on the practical usability are still lacking. Therefore, this paper derived problem of domestic construction materials information system by comparing with abroad material information system. Issues and implication is derived in terms of (1) Input information (2) Provide information, and (3) Utilize Information.

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A Study on Survey and Analysis for the Standardization to Information Attribute of Construction Material (건설자재 정보속성 정형화를 위한 조사 ${\cdot}$ 분석적 연구)

  • Han, Choong-Han;Ju, Ki-Bum;Kim, Hyung-Jun
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2007.11a
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    • pp.768-773
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    • 2007
  • Standardization to information attribute of construction material is continuous demanded through the life cycle of a construction project, and the productivity elevation is derived of contribution effect in construction market. This study surveyed the means of acquisition and attribute of information to a staff in purchase, which are effected on the revitalization of information circulation to the construction material Proposed the standardization to information attribute of construction material that is based on improvement and application to the information attribute. And information attribute is classified with construction process through analysis on test list of quality certification. This study also suggested representative attribute of quality information, for the elevation of safety and quality in construction industry. Therefore, logicality of common information is based by analysis of mathematical statistics, systemicity of quality information is applied by MasterFormat(2004)

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Development of Data Warehouse for Construction Material Management (건설공사 자재 관리를 위한 데이터 웨어하우스 개발)

  • Ryu, Han-Guk
    • Journal of the Korea Institute of Building Construction
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    • v.11 no.3
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    • pp.319-325
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    • 2011
  • During a construction project, construction managers must be provided with material information to help them to make decisions more efficiently without delaying the delivery of material. Construction work can be smoothly performed with the proper material supply. Construction duration depends on several material-related decisions, including the order, delivery, and allocation of material to the correct work location. Hence, it is worthwhile to introduce data warehouse techniques that generate subject-oriented and integrated data to construction material management. The data warehouse for construction material management can perform multidimensional analysis and then define KPIs (Key Performance Index) in order to provide construction managers with construction material information such as lead time, material delivery rate, material installation rate and so on. This research proposes a method of effectively facilitating large amounts of data in the operating systems during the construction management process. In other words, the proposed method can supply structured and multi-perspective material-related information using data warehouse techniques.