• Title/Summary/Keyword: defect engineering

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Development of Expert System for Diagnosis of Weld Defects (용접 결함 진단 전문가시스템의 개발)

  • 박주용
    • Journal of Advanced Marine Engineering and Technology
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    • v.20 no.1
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    • pp.13-23
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    • 1996
  • Weld defects degrade the strength and safety of astructure and are resulted from the various cases. The complexity of causal relation of weld defects requires an expert for the analysis of weld defects and the measures counter to them. An expert system has the intelligent functions such as the representation of knowledge and the inference. On this research, weld defect are systematically analysed and their causal model is developed. This information is saved to the knowledge base. The suitable inference algorithm for the diagnosis of weld defects is developed and realized with C++ programming.

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ON THE DEFECTS OF HOLOMORPHIC CURVES

  • Yang, Liu;Zhu, Ting
    • Bulletin of the Korean Mathematical Society
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    • v.57 no.5
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    • pp.1195-1204
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    • 2020
  • In this paper we consider the holomorphic curves (or derived holomorphic curves introduced by Toda in [15]) with maximal defect sum in the complex plane. Some well-known theorems on meromorphic functions of finite order with maximal sum of defects are extended to holomorphic curves in projective space.

Effect of the Stiffness of Ingerface Defect on Dynamic Interface Crack propagation (계면에 존재하는 결함의 강성도가 동적 계면균열전파에 미치는 영향)

  • 이억섭;윤해룡;황시원
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2001.04a
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    • pp.671-674
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    • 2001
  • The dynamic photoelasticity with the aid of Cranz-Shardin type high speed camera system is utilized to record the dynamically propagating behavior of the interface crack. This paper investigates the effects of the stiffness of interface defect(exist along the path of the crack propagation) on the dynamic interface crack propagation behavior by comparing the experimental isochromatic fringes to the theoretical stress fields.

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