Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3755Chemical news office., 1932 |
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Strona 218
... Total absorption of empty room ... 709 For the absorption of the audience we must add 500 × 4 = 2,000 and subtract the absorption of 500 seats at 0.25 , giving a net addition of 1,875 absorption units , and bringing the total absorption ...
... Total absorption of empty room ... 709 For the absorption of the audience we must add 500 × 4 = 2,000 and subtract the absorption of 500 seats at 0.25 , giving a net addition of 1,875 absorption units , and bringing the total absorption ...
Strona 219
... absorption of the audience , as may be seen from the example worked out in Section III , is usually a large part of the total absorption of the room . Almost any room will have passable acoustic properties with a capacity audience , but ...
... absorption of the audience , as may be seen from the example worked out in Section III , is usually a large part of the total absorption of the room . Almost any room will have passable acoustic properties with a capacity audience , but ...
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absorbing absorption acid acoustic activity application Arts Association atom audience auditorium becomes bibliographies British cause ceiling cent Chemical chemistry coefficient complete contained cost cubic desired echo effect electricity electron element example excess existing experiment experimental expressed fact feet floor formation formula give given heat held hydrogen hydrogen ion importance increase industry intensity interest later less light lines London Manufacture March Marks material means measured metals methods million molecules necessary obtained Office optical ordinary organic organisation oxygen Patents plants Plaster possible present produced quantity references reflected reflected sound result reverberation Royal Sabine Science scientific seats Society solid solution sound space speaking specific spectrum square substances TABLE term theory tion total absorption Trade units University usual volume walls Watson weight window