• Title/Summary/Keyword: 구조분석

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A study on Korean salvage competency analysis and development plan (한국의 해난구조 역량 분석 및 발전 방안 연구)

  • Kim, Tae-Hyun;Kang, Sin-Young;Jung, Joo-Sung
    • Journal of Advanced Marine Engineering and Technology
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    • v.36 no.8
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    • pp.1143-1150
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    • 2012
  • This paper reviewed the general definition and role of salvage duty, and performed competency analysis based on the present state of ROK Navy's and Korean civilian's salvage operation. Also, to enhance the national salvage ability, the salvage system of advanced maritime nations such as America, Great Britain were studied. Putting these information together, it is concluded that for the expansion and development of Korean salvage system, the nationally combined salvage assets must be utilized for civilian salvage operations and internationally recognized diving certification system should be introduced and joint organization of civilian-government-Navy should be established to enable the execution of such plans.

A Study on the Menu Structure and Term of Academic Library Web Site (국내 대학도서관 웹사이트 메뉴구조와 용어 분석)

  • 최흥식
    • Journal of the Korean Society for information Management
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    • v.19 no.4
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    • pp.137-161
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    • 2002
  • The purpose of this study is to propose new menu structure and terms to be used by Website design for utilization of academic library Website. The menu structure was analyzed, based on seven menu patterns of Website which is widely used, and terms were analyzed by the frequency appearing at the Website. According to the analyzed result, the menu structure used to more than two menu patterns and the terms appear variety. The profitable menu pattern appears 〈table〉 and 〈frame + table〉 menu structures and the terms needs to systematic re-classification and controlled presentation. It is expected that this study can help a designer to the development and implementation of efficient Website. It helps not only to solve the problem of menu structure and term selection for librarian, but get rid of confusion of library services for users.

Design of Management Structure Measuring Integrated Monitoring System Based on Mobile Cloud (모바일 클라우드 기반 구조물 유지관리계측 통합모니터링시스템 설계)

  • Min, Byung-Won;Oh, Yong-Sun
    • Proceedings of the Korea Contents Association Conference
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    • 2014.11a
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    • pp.9-10
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    • 2014
  • 구조물 계측 및 유지관리에 포함되는 계측센서, 계측장비, 전산장비, 통신장비, 소프트웨어 등은 구조물 수명에 비해 비교적 짧은 내구수명을 가지기 때문에 공용 기간 중 지속적으로 교체/변경이 요구되고 있으며, 소프트웨어 또한 분석기술의 향상과 정보통신기술의 발전 등을 계속해서 반영해야 하므로 일정기간마다 모니터링시스템에 대한 업그레이드 작업이 요구되고 있다. 그러나, 기존에 개발된 시스템은 구조물 관리자에 의한 일부 하드웨어와 분석 알고리즘의 변경이나 업그레이드가 쉽지 않고 모니터링 시스템의 구축에 활용된 프로그램 내부구조 파악이 어려워 원 개발자의 지속적인 지원에 의존해야한다. 본 논문에서 제안된 모바일 클라우드 기반 구조물 유지관리계측 통합모니터링시스템에서는 구조계가 평상시나 특수한 상황에서 장 단기적으로 어떠한 거동을 보이고 있는지를 분석하고, 이를 토대로 향후의 거동이 어떻게 될지 예측하기 위해서 확률과 통계기법의 적용을 통해서 구할 수 있는 새로운 데이터 분석 기법을 적용하였으며, 모바일 클라우드 기반으로 데이터를 수집하고, 많은 데이터 양 및 데이터 신뢰도 수준에서 건전성평가를 할 수 있는 새로운 개념의 구조물 거동계측 통합모니터링시스템 설계로 기존의 단점을 해결할 수 있도록 개선하였다.

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Particle-Structure Collision Modeling for Topology Optimization (위상최적설계를 위한 입자-구조 충돌 모델)

  • Young Hun Choi;Gil Ho Yoon
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.36 no.6
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    • pp.365-370
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    • 2023
  • This paper presents a particle-structure collision model for topology optimization, which requires sensitivity analysis. Therefore, a new model that incorporates sensitivity analysis is needed. The proposed particle-structure collision model conducts sensitivity analysis for topology optimization. To evaluate the accuracy of the proposed model, it was applied to a simplified one-dimensional collision problem. Optimization of the final positions of particles using topology optimization through this model confirmed the suitability of the proposed approach. These results demonstrate that it is possible to consider particle-structure collision in topology optimization.

A Structural -Functional Approach of the Theory of the Korean Family (구조적-기능적면을 중심으로 본 한구가족의 이론적 고찰)

  • 김양순
    • Journal of the Korean Home Economics Association
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    • v.17 no.3
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    • pp.61-69
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    • 1979
  • 사회의 가장 기초적인 단위인 가족은 핵가족에서부터 시작된다. Hill(1957)에 의하면 가족에 대한 연구는 일곱가지 면으로 나누어 연구되어 질수 있으며 그 중 하나인 구조적- 기능적 면을 중심으로 한국가족을 이론적으로 분석해 보려는데 본 연구의 목적이 있다. 가족에 대한 구조적 기능적인 면의 분석은 사회학에서 중심적인 연구분야이다. 사회가 변화, 발전함에 따라 가족의 구조와 그 고유한 기능도 변화되어 간다. 사회학적으로 사망, 이혼, 별거, 결혼, 출산에 의해 가족의 구조와 그 기능은 변화되어간다. 한국가족의 구조는 부계직계 확대가족에서 점차 핵가족으로 변화되고 있으며 그 기능도 따라서 변화되어 가고 있다.

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Analysis study on tonal structure of ceramic's product -Centering quantitative analysis model- (도자제품의 색체구조의 분석연구 -정량 분석모형을 중심으로-)

  • 손연석
    • Archives of design research
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    • v.13 no.2
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    • pp.45-53
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    • 2000
  • All artists set the arrangement of relative probability subjectively by giving the contrast of color and chroma to give higher probability of some colors in their works and then perform the mechanical assignment. Also the analysis of plastic structure in all areas of design has been made by subjective and qualitative method based on the emotion, intuition and experience of interpreter of design structures and that of color structures was done by the same method. Therefore this study compares and suggests the style characteristics of modern and postmodern design with the object quantitative analysis of color structure by selecting and applying Ilya Chashinik's ceramic dishes as the analysis product of modern design and Jim Melchert's ceramic wall painting as that of postmodern design of 'analysis model of color structure' researched and developed for the quantitative information analysis based on information and communication theory and it is also meaningful in introducing and presenting the analytic procedure and methods centering around quantitative analysis model of color structure analysis.

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Analyzing Differences of Binary Executable Files using Program Structure and Constant Values (프로그램의 구조와 상수 값을 이용하는 바이너리 실행 파일의 차이점 분석)

  • Park, Hee-Wan;Choi, Seok-Woo;Seo, Sun-Ae;Han, Tai-Sook
    • Journal of KIISE:Software and Applications
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    • v.35 no.7
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    • pp.452-461
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    • 2008
  • Binary diffing is a method to find differences in similar binary executables such as two different versions of security patches. Previous diffing methods using flow information can detect control flow changes, but they cannot track constant value changes. Biffing methods using assembly instructions can detect constant value changes, but they give false positives which are due to compiling methods such as instruction reordering. We present a binary diffing method and its implementation named SCV which utilizes both structure and value information. SCV summarizes structure and constant value information from disassembled code, and matches the summaries to find differences. By analyzing a Microsoft Windows security patches, we showed that SCV found necessary differences caused by constant value changes which the state-of-the-art binary diffing tool BinDiff failed to find.

Correlation between Microstructure and Electrode Properties of Composite Anode for SOFC (SOFC용 복합체 음극의 미세구조와 전극특성간의 상관관계)

  • 이종호;문환;이해원;김주선;김재동;윤기현
    • 한국전기화학회:학술대회논문집
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    • 2001.06a
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    • pp.124-129
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    • 2001
  • SOFC(Solid Oxide Fuel Cell)의 음극으로 쓰이고 있는 Ni-YSZ 복합체의 미세구조를 Ni의 함량에 따라 정량적으로 분석하고 이로부터 미세구조적인 특성과 전극특성간의 상관관계를 규명하였다. 미세구조적인 특성의 정량화를 위해 quantitative microscopy 이론을 응용해 화상분석 하였고 그로부터 복합체내 각 상들의 크기 및 분포, 각 상간의 연결도 및 계면 면적 등의 정보를 얻어내었다. 미세구조 분석결과 복합체 전극의 특성은 입자성장 등에 의한 미세구조 변화, 특히 Ni 상의 입자성장 정도에 크게 의존하였으며 이렇게 정량화된 미세구조적 인자들은 복합체가 나타내는 복잡한 전기적 물성들을 예측하는데 아주 유용하게 활용되었다.

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Analysis of Stopband Characteristics for 1D Photonic Band-Gap Structures (1D PBG 구조의 저지대역 특성 분석)

  • 신윤미;이지면;이범선
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.13 no.2
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    • pp.136-145
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    • 2002
  • In this paper, we facilitate the analysis of 1D PBG structure using a ABCD matrix formulation after converting field parameters into circuit parameters. Dispersion diagrams for an infinite 1D PBG structure are derived and compared with the frequency responses for a finite structure (N=10). When the proposed method is adopted, the analysis and synthesis of 1D PBG structures become very convenient.

A Comparative Study on the Analytical Methods for Structural Behavior of Cement Concrete Pavement System (시멘트 콘크리트 포장구조계의 구조거동의 해석방법에 관한 비교연구)

  • Lee, Seong Won;Kim, Moon Kyum;Hwang, Hak Joo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.9 no.4
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    • pp.73-82
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    • 1989
  • Various analytical procedures for the structural behavior of concrete pavement system are studied in order to identify a suitable method which will be incorperated in the pavement management system using nondestructive test and mechanistic evaluation. A typical four layered system is adopted and analyzed using 3 dimensional finite elements, plane strain elements, plates with Winkler foundation, and plates with Burmister foundation. Numerical analysis results of various structural analysis procedures are compared and analized based on displacements and stresses. It is concluded, after analysis of merits and demetits of the procedures, that Burmister foundation analysis procedure is the most sui-table procedure for implementation for the analysis of stresses and displacements because of its accuracy and simplicity.

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