• Title/Summary/Keyword: scrim

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Mechanical Behavior of Laminated Composites Using Scrim Prepregs for Fishing Rods (낚싯대 제조용 스크림 프리프레그 적층복합재료의 기계적 거동)

  • 정성균;정성교
    • Composites Research
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    • v.12 no.5
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    • pp.80-86
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    • 1999
  • Mechanical characteristics of composite laminates and cylindrical shell using scrim of glass scrim are evaluated in this paper. Composite laminates and cylindrical shells are made by inserting carbon scrim or glass scrim between layers. The mechanical properties are routinely characterized by ASTM stands. Experimental results show that the mechanical properties of UD prepreg in the transverse direction are highly improved by inderting scrims between layers.

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Mechanical characteristics of laminated composites using hybrid prepreg (하이브리드 프리프레그를 사용한 적층복합재료의 기계적 특성)

  • 정성교;정성균;임승규
    • Proceedings of the Korean Society For Composite Materials Conference
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    • 1999.04a
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    • pp.189.1-192
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    • 1999
  • Mechanical characteristics of composite laminates with carbon tissue and glass scrim are evaluated in this paper. Composite laminates in USN125 group are made by inserting carbon tissue and glass scrim between layers. Consequently it was shown that mechanical characteristics of carbon fiber reinforced composite materials were improved by inserting carbon tissue.

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Non-glasses Stereoscopic 3D Floating Hologram System using Polarization Technique

  • Choi, Pyeongho;Choi, Yoonhee;Park, Misoo;Kwon, Soonchul;Lee, Seunghyun
    • International journal of advanced smart convergence
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    • v.8 no.1
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    • pp.18-23
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    • 2019
  • The image projected onto the screen of the floating hologram is no more than a two-dimensional image. Although it creates an illusion that an object appears to float in space as it moves around while showing its different parts. This paper has proposed a novel method of floating 3D hologram display to view stereoscopic three-dimensional images without putting on glasses. The system is comprised of a sharkstooth scrim screen, projector, polarizing filter for the projector, and a polarizing film to block the image projected from the sham screen. As part of the polarization characteristics, the background image and the front object have completely been separated from each other with the stereoscopic 3D effect successfully implemented by the binocular disparity caused by the distance between the two screens.

Characterization of 0.5 % Ce-doped Ba($Zr_{0.2}Ti_{0.8}$)$O_3$ Thin Films Grown by RF Magnetron Sputtering Method (RF 마그네트론 스퍼터링법으로 성장시킨 0.5 % Ce-doped Ba($Zr_{0.2}Ti_{0.8}$)$O_3$(BCZT) 박막의 특성분석)

  • 최원석;박용섭;이준신;홍병유
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2002.07a
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    • pp.301-304
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    • 2002
  • We investigated the structural and electrical properties of Ce-doped Ba($Zr_{0.2}Ti_{0.8}$)$O_3$(BCZT) thin films with a mole fraction of x=0.2 and a thickness about 100 nm. BCZT films were prepared on Pt/Ti/$SiO_2$/Si substrate by a RF magnetron sputtering system. We have measured the thickness profile with Ar/$O_2$ ratio and the surface roughness. It was observed that the oxygen gas, which introduced during the film deposition, have an influence on the roughness of the film and the film roughness was reduced by annealing from 2.33 nm to 2.02 m (RMS at $500^{\circ}C$, Ar:6 scrim, $O_2$:6 sccm). We have found that annealing procedure after top electrode deposit can reduce the dissipation factor.

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