• 제목/요약/키워드: Air Space

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공기막 이중필름의 공기막 두께와 주입공기 온도에 따른 관류전열량 변화 특성 (Characteristics of Heat Transmission Variation by Air Space Thickness and Injected Air Temperature in Air-Inflated Double Layers Film)

  • 김형권;전종길;백이;이상호;윤남규;유주열
    • 한국농공학회논문집
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    • 제55권6호
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    • pp.121-125
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    • 2013
  • This study was carried out to provide a valuable reference which could reduce heating loss of air-inflated double PO film. Therefore, this study was aimed to choose the best air space thickness and injected air temperature. The characteristics of heat transmission variation at experimental materials were measured and analysed in the laboratory. The experiment was conducted of two layers of PO film, each 0.15 mm tick, sandwiching 110, 175, 225 mm of inflated air with 1 m sides. Environmental control lab was constantly controlled with $-10^{\circ}C$ and experiment chamber was constantly changed with 0, 5, 10, $15^{\circ}C$. The analysis of heat transfer showed that heat transmission does not have a direct correlation with Air Space thickness and injected air temperature. But when inside and outside temperature difference of chamber was great, supply of outside air to Air Space had an advantage at reduction of heating load. It was required to examine accurate analysis at a real greenhouse.

Liability in the context of space tourism

  • Leon, Pablo Mendes De
    • 항공우주정책ㆍ법학회지
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    • 제spc호
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    • pp.225-246
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    • 2007
  • This article is dedicated to my colleague and friend Professor Soon-Kil Hong, Ph.D, who is the famous President of the Korean Association of Air and Space Law and distinguished teacher at the prestigious Hankuk Aviation University. I had the honour and pleasure to teach there a few years ago - upon his gracious invitation. Professor Soon-Kil Hong has made a long, outstanding and impressive career in aviation and space activities, both from a practitioners and academic perspective. That is why I have tried to find a subject which addresses these facets of his personality although this humble article cannot do justice to the great merits of Professor Soon-Kil Hong. This article discusses the liability aspects for damages and injuries to passengers on suborbital flights, by examining: 1. Recent developments regarding space tourism 2. Suborbital flights in relation to the Chicago Convention 3. The application of space law treaties to space tourism 4. Potential candidates for liability regimes applying to space tourism 4.1 Introduction 4.2 Liability under international space law 4.2.1 The Outer Space Treaty (1969) 4.2.2 The Liability Convention (1972) 4.2.3 Conclusions 4.3 Liability under international private air law 4.3.1 Introduction 4.3.2 The Warsaw Convention (1929), as variously amended 4.3.3 The Montreal Agreement (1999) 4.3.4 Conclusions 5. Final observations

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