• Title/Summary/Keyword: Database Structure

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Development of the System for Damage Assessment of Road Network after Seismic Excitation (지진 발생 후 도로망의 피해 산정을 위한 평가체계 개발)

  • Yi Jin-Hoon;Lee Hyeong-Cheol;Jeong Dong-Gyun;Lee Sang-Ho
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2006.04a
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    • pp.216-221
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    • 2006
  • This study provides a methodology for development of the Seismic Damage Evaluation System (SDES) in Korea. Major systems and status of database related to road networks in Korea are investigated to analyze the usability of the required information for developing the SDES. In this study, the SDES is composed of four components that are the road network component, the ground motion component, the fragile structure component, and the cost component. In addition, the procedures for the construction of database which support the SDES is proposed, and a prototype of the SDES for expressway of Korea is developed based on the developed methodology. The National Geospatial Information System (NGIS) and the National Earthquake Information System (NEIS) are used to develop the road network component and ground motion component, respectively. For the fragile structure component and the cost component, Highway Bridge Management System (HEMS) was used.

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Design of Spatial Query Language for GEO Millennium Server TM

  • Zhaohong Liu;Kim, Sung-Hee;Oh, Young-Hwan;Bae, Hae-young
    • Proceedings of the Korean Information Science Society Conference
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    • 2000.10a
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    • pp.113-115
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    • 2000
  • A GIS software GEO Millennium SystemTM has been developed to integrated with spatial database that combines conventional and spatially related data. As we known well the standard query language lacks the support of spatial data type and predicate, and can not serve as the query language in the spatial database directly; some extended strategies have been proposed, but some of them need their own storage manager, some introfuce new clause into the SELECT-FROM-WHERE structure, and some is very complex and available to us. So we designed our own query language on the conventional storage manager system. It supports the Spatial Data Type and predicate, and provides the full query capabilities of SQL on the non-spatial part of the database while being tightly integrated with the spatial part, without changing the standard SQL structure.

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Modeling of Building Structure for an Integrated Structural Design (건축구조설계 통합시스템을 위한 건축구조물의 모델링)

  • 김치경;홍성묵
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1993.04a
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    • pp.71-78
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    • 1993
  • This study serves as a part for the development of an integrated structural design system. Efficient data management is essential in engineering computer applications where the volume of data is large and the data flow and sharing are required. From a viewpoint of computer application, building structures can be considered to be a mass ofdata. The centralized database(CDB) and database management system frees the application from the details of managing data storage and retrieval while providing a common pool of information. For this, systematic information analysis and modeling have to be preceded. In this paper we described the result of database modeling of building structure.

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A Study on the Cost Estimate System Development Method for Nuclear Power Plant Construction Projects

  • Lee, Sang Hyun
    • International conference on construction engineering and project management
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    • 2017.10a
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    • pp.133-137
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    • 2017
  • Nuclear power plants in Korea are usually built based on a duplicated model; so the project cost data of the preceding unit can be used as reference when estimating the project cost for the succeeding unit. However, since the contracting method is oriented towards the price, empirical factors such as making top-down estimations using the reverse calculation method based on the completion cost of the preceding unit is dominant. In order to develop a project cost database to resolve such problems, the detailed cost boundary of the project cost data must be categorized by project and by system. This study proposes a method to connect the code of account with the base quantities and the IAEA account, and proposes a database structure for the development of a project cost estimation system. The estimation system developed in the future is expected to utilize the proposed project cost data structure.

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Product Data Model ing for Engineer ing Database (엔지니어링 데이터베이스를 위한 제품데이터의 모델링)

  • 김철한;김진홍
    • The Journal of Society for e-Business Studies
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    • v.1 no.2
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    • pp.93-116
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    • 1996
  • Nowadays, there are many efforts to integrate CAD/CAM and other systems. The key of integration is engineering database implementation through the product data definition. In this paper, we suggest the product data definition and their properties for electronic consumer product throughout the requirement analysis for engineering database. Electronic consumer products include electric/electronic parts. as well as mechanical part which mainly compose of machinery. The paper is composed of three parts: the first is analysis about engineering data base. the second is understanding of product data structure and properties. and the last is modeling of product data including static and dynamic characteristics.

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A Study on Web Database Construction for Interior Design Works (실내디자인 웹 데이터베이스 구축에 관한 연구)

  • 이현수;김경숙;정승연
    • Korean Institute of Interior Design Journal
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    • no.11
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    • pp.70-73
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    • 1997
  • This paper explores ways to develop efficient methods to construct the web-based interior design database based on hypermedia technology. First the role of hypermedia in design was investigated. We propose the structure of knowledge representation for interior design works. Also, we discuss how a design case can be retrieved from the design database. This paper also identified further research issues such as design case retrieval from numerous design cases and components of the virtual design studio.

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Database Structure for PDA Based Audiometric System (PDA 기반의 청력 검사를 위한 데이터베이스 구성)

  • Shin, S.W.;Kim, K.S.;Yoon, T.H.;Han, M.H.;Lee, S.M.
    • Proceedings of the KIEE Conference
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    • 2005.10b
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    • pp.385-387
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    • 2005
  • In this study, we tried to implement a PDA (Personal Digital Assistant)-based audiometric system to test hearing disorder. Due to the inherent handy nature of PDA system, our hearing test system can be easily performed in a local environment and consequently the measured audiometric data are stored and queryed via a built-in a PDA database system.

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Higher Order Knowledge Processing: Pathway Database and Ontologies

  • Fukuda, Ken Ichiro
    • Genomics & Informatics
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    • v.3 no.2
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    • pp.47-51
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    • 2005
  • Molecular mechanisms of biological processes are typically represented as 'pathways' that have a graph­analogical network structure. However, due to the diversity of topics that pathways cover, their constituent biological entities are highly diverse and the semantics is embedded implicitly. The kinds of interactions that connect biological entities are likewise diverse. Consequently, how to model or process pathway data is not a trivial issue. In this review article, we give an overview of the challenges in pathway database development by taking the INOH project as an example.

Implementation Scheme of Database System for Reliability Prediction of the Mechanical System (기계류 시스템 신뢰성 예측 데이터베이스 시스템 구축 방안)

  • Kim, Yon-Soo
    • Journal of Applied Reliability
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    • v.5 no.4
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    • pp.451-463
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    • 2005
  • This paper describes procedure to build a generic reliability analysis database structure and failure data during the conceptual design phase. Reliability prediction utilizing such supporting database system enable the designer to quantify the effects of varying design and operational constrains on mechanical component's failure rate. This leads to compare competing alternatives to the reliability improvement efforts.

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PDA Based Audiometric System and its Database Structure (PDA 기반의 청력 검사 시스템 및 데이터베이스 구성)

  • Kim K. S.;Lee J.H;Shin S.W;Yoon T.H;Lee S.M
    • The Transactions of the Korean Institute of Electrical Engineers D
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    • v.55 no.1
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    • pp.42-44
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    • 2006
  • In this paper, we tried to implement a PDA (Personal Digital Assistant)-based audiometric system to test hearing disorder. Due to the inherent handy nature of PDA system, our hearing test system can be easily performed in an user's local environment and consequently the measured audiometric data can be stored and queryed locally via a built-in PDA database system.