Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3755Chemical news office., 1932 |
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Strona 218
... 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 of ...
... 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 of ...
Strona 219
... absorption of the room . Almost any room will have passable acoustic properties with a capacity audience , but with ... absorbing material the best results are obtained if the material is placed entirely in that portion of the audi ...
... absorption of the room . Almost any room will have passable acoustic properties with a capacity audience , but with ... absorbing material the best results are obtained if the material is placed entirely in that portion of the audi ...
Strona 223
... absorption of the y - rays from radium ( B + C ) filtered by 1.6 cm . of lead has been measured by a photographic method . With this lead filter the absorp- tion is exponential . The absorption μ per electron for the lighter elements is ...
... absorption of the y - rays from radium ( B + C ) filtered by 1.6 cm . of lead has been measured by a photographic method . With this lead filter the absorp- tion is exponential . The absorption μ per electron for the lighter elements is ...
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