• Title/Summary/Keyword: Assesment

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The Analysis of Precise Position for Cultural Assets using Video Image Acquisition(Assesment of Stone Built) (비디오 영상 획득을 이용한 문화재 정밀위치 해석(석조 문화재에 관하여))

  • Jang, Ho-Sik;Lee, Jong-Chool;Kang, In-Joon;Seo, Dong-Ju
    • 한국지형공간정보학회:학술대회논문집
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    • 2003.09a
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    • pp.151-155
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    • 2003
  • 본 연구에서는 비측량용 디지털 비디오 카메라를 이용하여 석조문화재인 석탑을 대상으로 하여 촬영에 대한 오류를 사전에 검사할 수 있을 뿐만 아니라 재촬영을 하지 않도록 하였으며, 문화재 정밀 측량에 있어서 기대할 수 있는 양호한 정확도를 얻을 수 있었다. 차후 문화재 원형 보존에 대한 계획의 수행에 있어서 문화재에 대한 자세한 정보를 제공하기 위해 효율적이고 경제적인 방법을 제시하고자 한다.

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Reliability Assesment of the Robotic System for Ultrasonic Inspection of Reactor Vessels (원자로 검사로봇의 신뢰도 분석)

  • 엄홍섭;이재철;김재희
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.379-379
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    • 2000
  • The robot systems used in nuclear power plants need to be both reliable and safe. As a part of the "Validation of nuclear safety-grade equipment" project, we established reliability analysis program and performed a number of analysis using conventional reliability analysis techniques. This paper describes the procedures, techniques, and results of the analysis utilized in our project. In addition, the paper includes current status of reliability analysis techniques and the summary of foreign case studiesse studies

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Investigation of Distance Measurement Performance Using Waveform Clouds-Based Terrestrial Laser Scanner (Waveform 방식의 지상라이다 거리측정 성능 실험)

  • Lee, In-Su;Kim, Hyung-Moo;Cha, Deuk-Gi;Lee, Dong-Rak
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2010.04a
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    • pp.45-47
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    • 2010
  • Terrestrial Laser Scanner is widely useful in the cultural heritage documentation, acquisition of three-dimensional spatial information in the field of civil engineering and construction, and the safety monitoring for the inaccessible sites such as a few bridges and landslides. This study deals with the investigation of distance measurement and the performances assesment with waveform clouds-based(TLS).

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Technological Assesment on Public R&D Activities (정보통신 공공 R&D 기술성 평가)

  • 여인갑
    • Proceedings of the Korea Society for Industrial Systems Conference
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    • 2002.11a
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    • pp.433-439
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    • 2002
  • In this paper, we implemented technology assessment on the public R&D activities in IT field in order to select the promising technologies, so called "star technology," making for national industry development. Technology assessment frame in this study included qualitative factors. IT technologies are classified five sector - network, wireless/broadcasting, SW/application/computer/terminal equipment, semiconductor/component. Expert opinion interviews on each field are carried out. Assessment factors consist of technology usefulness and technology competitiveness. In the final analysis, 23 technology items selected as a promising technologies and the results can be used public R&D planning and If industry policy.

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구강·악안면외과 영역에서 전산화 단층촬영에 관한 연구

  • Lee, Sang-Chull;Kim, Yeo-Gap;Kim, Hyon-Chull;Kim, Hyo-Jong
    • The Journal of the Korean dental association
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    • v.24 no.4 s.203
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    • pp.345-357
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    • 1986
  • Computerized tomography has become more widely available in numerous centers throughout the world and is now recognized in many specialities as an important diagnostic procedure. The use of computerized tomography in oral and maxillofacial surgery is discussed. It has been found to be of special value in the diagnosis and assesment of expanding and infiltrating lesions of the jaws, fracture and infections, especially in the midface, in both adults and children.

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Procedures for the noise impact assesment of high-speed trains (고속철도 차량의 소음영향 평가 절차)

  • Choi Sunghoon;Lee Chan-Woo;Cho Jun-Ho;Kim Jae-Chul
    • Proceedings of the KSR Conference
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    • 2004.10a
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    • pp.387-392
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    • 2004
  • There has been an increasing demand for the noise impact assessment by the high-speed trains due to the expansion of high-speed rails. This paper provides procedures for the evaluation and the assessment of the potential noise impact resulting from proposed high-speed rails. Firstly the official specifications for the railway noise have been reviewed, and the procedures for the initial noise evaluation and the detailed noise analysis have been described.

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Manufacturing and Assesment of Composite Type Sewing Threads for Geotextile Seaming (Geotextiles 봉합용 복합 재봉사의 제조 및 평가)

  • 전한용;장경호;김홍관;박용준
    • Proceedings of the Korean Fiber Society Conference
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    • 2001.10a
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    • pp.420-423
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    • 2001
  • 토목합성재료(Geosynthetics) 중 직포매트는 i) 분리, ii) 보강/보호 등의 기능을 가지고 있으며 연약지반 보강, 도로포장, 간척지 지반 공사 및 해안지역 LNG 저장고 공사, 폐기물 매립지의 사면 및 저면 보호재 등 기초 보강재료로 널리 이용되고 있다. 그러나 현재 토목건설공사에 사용되고 있는 직포매트용 봉합사는 타이어 코드 제조용 폴리에스테르 고강력사이며, 봉합할 경우 원통형 관입에 의한 인장신도가 커지게 되어 변형에 의한 파괴가 쉽게발생한다. (중략)

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IWRAP모델에 의한 목포대교부근 충돌확률 분석

  • Kim, Gwang-Il;Jeong, Jung-Sik;Park, Gye-Gak
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2011.06a
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    • pp.225-226
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    • 2011
  • IALA Waterway Risk Assesment(IWRAP)에서 선박의 충돌확률은 기하학적인 선박의충돌확률(geomatric probability)에 인과관계 확률(causation probability) 곱한 값으로 해당수역의 양적인 충돌확률 평가에 이용되고 있다. 이를 통해 목포대교부근에 통항하는 선박의 선종별 충돌확률 및 입출항 선박 전체 충돌 확률 값을 분석하고자 한다.

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Energy Dissipation and Mean Crushing Strength of Stiffened Pates in Crushing

  • Lee, J.W.;Choung, J.M.
    • Journal of Hydrospace Technology
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    • v.2 no.1
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    • pp.27-40
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    • 1996
  • The prediction of the crushing strength and corresponding energy dissipation of unstiffened and stiffened plates under axial compression is discussed. Semi-empirical formulae for the crushing strength and dissipation energy of these stiffened plates are derived from the assesment of the structural behavior of unstiffened and stiffened box columns consisted of rectangular plates with longitudinal, transverse and orthogonal stiffeners. To demonstrate the effectiveness of proposed formulae, they are compared with the existing formulae and experimental results, which are shown in good agreements.

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