• Title/Summary/Keyword: 와구조

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A Study on the efficiency comparison about methods of the deployment of AIN (고도 지능망 구조의 망 연결 방식 비교를 통한 효율성에 관한 연구)

  • 장경훈;조현준;이성근;이영호;이재섭;김덕진
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.19 no.11
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    • pp.2179-2188
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    • 1994
  • In this paper, we studied the deployment of AIN(Advanced Intelligent Network) that was recommended by ITU-T there are five methods of deployment. Here we divided these methods into two types. One is the direct connection with SCP(Service Control Point) and IP(Intelligent Peripheral) via No.7 and the other is the indirect connection with SCP and IP Through SSP(Service Switching Point). First, we suggested the structure of AIN SSP and defined S/W functional blocks. Second, we proposed H/W functional extension for interaction with IP. On the basis of the suggested structure, we mathematically evaluated and simulated two types of the deployment of AIN. In the result, we knew that, in comparison with the indirect method, the direct method was effective.

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A Wire-Woven Kagome Transformed to have a Negative Poisson's Ratio (음의 푸아송비를 갖도록 변환된 와이어 직조 Kagome)

  • Kang, Dae Seung;Han, Seung Chul;Park, Jong Woo;Nguyen, Dang Ban;Kang, Kiju
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.40 no.9
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    • pp.827-833
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    • 2016
  • Wire-woven Kagome is a kind of Periodic Cellular Metal, which is known to have high strength, stiffness for its weight, and potential for mass production. In this work, we developed a new structure that mimics ${\alpha}$-cristobalite. First, an ordinary wire-woven Kagome was fabricated using metallic wires, and the tetrahedral cells were then filled with metal balls and epoxy. The wire-woven Kagome was transformed to have a negative Poisson's ratio by carrying out a specified amount of initial deformation. The fabrication possibility and kinematic behavior were checked by using FEA simulation. Finally, the mechanical properties were measured using compressive tests.