• Title/Summary/Keyword: mounting

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Selection of Scale Model Materials for Acoustical Evaluation of 1:50 Multipurpose Halls (1:50 다목적홀의 음향평가를 위한 축소모형재료의 선정)

  • Jeon, Jin-Yong;Kim, Jeong-Jun;Kim, Yong-Hee
    • The Journal of the Acoustical Society of Korea
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    • v.28 no.8
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    • pp.781-789
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    • 2009

  • The absorption coefficients of the materials used in a 1:50 scale model multipurpose hall were measured based on ISO 354 and related laws. The shape and materials for the scale model were evaluated based on reflective surfaces, variable acoustic elements and sound-absorbing quality (125Hz-1kHz average) of seats. The measured average absorption coefficients of audience seats, audience and orchestra were 0.64, 0.74 and 0,45, respectively, which were simulated with the combination of wood, absorption materials and foam board. Various mounting methods for absorption curtain and banner were considered according to the installation methods. The average absorption coefficient was measured as 0.42, 0.47 and 0.45 in the conditions of Type A mounting, E mounting with 0.9 m backing air cavity, and Type G mounting which is suspended at the ceiling, respectively. It was confirmed that the absorption coefficient was increased at low frequency by backing air gap. The finishing material of stage house was an absorption material covered with thin fabric, which aimed average absorption coefficient of 0.68 by using fiber glass board. Each part of the real materials was compared with those of 1:50 scale model and it was found that the absorption characteristics of both cases were similar.

  • https://doi.org/10.7776/ASK.2009.28.8.781 인용 PDF KSCI

Role of Autophagy in the Control of Cell Death and Inflammation

  • Lee, Myung-Shik
    • IMMUNE NETWORK
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    • v.9 no.1
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    • pp.8-11
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    • 2009

  • There is mounting evidence that autophagy is involved in diverse physiological and pathological processes that have immense relevance in human development, diseases and aging. Immunity and inflammation are not exceptions. Here, the role of autophagy in the control of immune processes particularly that related to cell death and inflammation is discussed.

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Advanced 3-D mounting device - Innovations to realize ultra-small device - (진화된 3D실장 디바이스 - 경박 단소화를 실현하기 위한 혁신 -)

  • Makinaga, Hitoshi
    • Proceedings of the IEEK Conference
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    • 2008.06a
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    • pp.397-398
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    • 2008

  • 종래의 MID 기술을 마쯔시타 전공의 독자적인 기술을 심화 확충하여, 차기 시장이 요구하는 "소형 고성능 고 신뢰성의 3차원 실장 Device"를 개발하였으므로 아래와 같이 보고 한다. MIPTEC이란, "Microscopic Integrated Processing Technology"로 마쯔시타 전공의 기술 브랜드를 말한다.

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