• Title/Summary/Keyword: Engineering College

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Flow Visualization Using Texture Fields

  • Om, K.S.;Lee, D.H.;Kim, J.W.;Kim, J.H.;Kim, H.C.;Min, B.G.
    • Proceedings of the KOSOMBE Conference
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    • v.1996 no.05
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    • pp.69-72
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    • 1996

  • A new flow visualization image processing technique was studied. Our approach is based on texture fields and has higher performance than similar methods. We tested our method to flow visualization of Total Artificial Heart.

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The Supervisory Control System in a Moving-Actuator type Total Artificial Heart: Thought and Progress

  • Om, K.S.;Ahn, J.M.;Lee, J.H.;Choi, J.H.;Kim, W.E.;Kim, H.C.;Min, B.G.
    • Proceedings of the KOSOMBE Conference
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    • v.1997 no.05
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    • pp.55-58
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    • 1997

  • In this paper we reviewed and stated the present state of our team's research of the moving-actuator type total artificial heart (MA-TAH). Especially, this paper showed new direction of researches. The integrated research of battery, telemetry, TET is required. And the real-time supervisory of the state of hemodynamic variables and MA-TAH is also needed. These requirement made us to think the supervisory control system (SCS). As functional abilities of the SCS require very high computational cost, the digital signal processor is an appropriate choice for our need.

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Measurement of Relative Depth dose of Therapeutic Photon Beam Using One-Dimensional Fiber-Optic Phantom Dosimeter (1차원 광섬유 팬텀선량계를 이용한 치료용 광자선의 피부 및 선량보강영역에서 상대선량 측정)

  • Moon, Jin-Soo;Jang, Kyoung-Won;Yoo, Wook-Jae;Seo, Jeong-Ki;Park, Jang-Yeon;Cho, Young-Ho;Lee, Bong-Soo
    • Journal of Sensor Science and Technology
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    • v.20 no.2
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    • pp.96-101
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    • 2011

  • In this study, we fabricated a fiber-optic phantom dosimeter by arraying square type of plastic optical fibers in a PMMA phantom for measuring relative depth doses of therapeutic photon beams. To minimize the cross-talk between fiber-optic dosimeters, we selected appropriate septum by measuring leaked scintillating lights according to the various kinds of septa. In addition, we measured percentage depth doses of 6, 15 MV photon beams using a fiber-optic phantom dosimeter.

  • https://doi.org/10.5369/JSST.2011.20.2.96 인용 PDF KSCI

Effect of fiber content on flexural properties of fishnet/GFRP hybrid composites

  • Raj, F. Michael;Nagarajan, V.A.;Elsi, S. Sahaya;Jayaram, R.S.
    • Steel and Composite Structures
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    • v.22 no.1
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    • pp.13-24
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    • 2016

  • In the present paper, glass fibers are substituted partially with monofilament fishnet and polyester matrix for making the composites. The composite specimens were prepared in accordance with ASTM for analyzing the flexural strength and dynamic mechanical properties. Furthermore, machinability revealed the interaction of glass fiber and partial substituted monofilament fishnet fiber with the matrix. Fiber pullouts on the fractured specimen during the physical testing of the composites are also investigated by COSLAB microscope. The results reveal that the fishnet based composites have appreciably higher flexural properties. Furthermore, the glass fiber, woven roving and fishnet composite has more storage modulus and significant mechanical damping. The composite specimens were fabricated by hand lay-up method. Hence, these composites are the possible applications to develop the value added products. The results of this study are presented.

  • https://doi.org/10.12989/scs.2016.22.1.013 인용 KSCI