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" From work that has been done in the laboratory on homogeneous walls of various types, it has been determined that the weight of the wall per unit area is the most important factor in determining its sound insulation. Of secondary importance are the nature... "
Report of the Transactions of the Pennsylvania State Agricultural Society - Página 167
por Pennsylvania State Agricultural Society - 1876
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British Farmer's Magazine, Tema 70

1875 - 582 páginas
...planks, we have not only a very atfe and comfortable pavement, so far as the hone's footing is conis concerned, but the nature of the material and the...is easy. There is comparatively little noise, dirt, or dust ; and, altogether, for the human and equine population of our towns and cities, perhaps no...
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The American Journal of Psychology, Volumen18

Granville Stanley Hall, Edward Bradford Titchener, Karl M. Dallenbach, Madison Bentley, Edwin Garrigues Boring, Margaret Floy Washburn - 1907 - 554 páginas
...any given material will depend again on a number of conditions, the more prominent among them being the nature of the material, and the manner in which it is presented. Generalizations on this point cannot be made a priori, but a few general suggestions from...
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Building Materials and Structures Report, Temas1-25

1938 - 498 páginas
...area is the most important factor in determining its sound insulation. Of secondary importance are the nature of the material and the manner in which it is fastened at the edges. There is a rather popular misconception that fiberboard and sheet lead have...
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Health: A Weekly Journal of Medicine and Surgery, Diet ..., Tema 167,Volumen3

1884 - 852 páginas
...With Wood Wool this is easily secured, owing, firstly, to its absorbing capacity, and secondly, to the nature of the material and the manner in which it is applied. The dressing having become dry, it can remain on the wound any length of time. Thus it is...
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