福島瑞穂サン「反サミット活動家」入国拒否がなぜ「人権侵害」なの? (ワイド特集 花のさかりは過ぎにけれども)
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- 2008-04-17
論文 | ランダム
- Sound absorption characteristics of a honeycomb-backed microperforated panel absorber : Revised theory and experimental validation
- MULTIPLE-LEAF SOUND ABSORBERS WITH MICROPERFORATED PANELS: AN OVERVIEW
- A note on the relationship between the sound absorption by microperforated panels and panel/membrane-type absorbers
- A pilot study on improving the absorptivity of a thick microperforated panel absorber
- Double-leaf microperforated panel space absorbers: A revised theory and detailed analysis