acoustic absorption coefficient

acoustic absorption coefficient

[ə′küs·tik əb′sȯrp·shən ‚kō·ə‚fish·ənt]
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Figure 9 shows the results of acoustic absorption coefficient for PLA samples.
2, compared to the acoustic absorption coefficient for concrete noise barriers.
The change of carbon black type at a given loading (50 phr) does not characteristically affect the acoustic absorption coefficient [[Alpha].
The final physical parameter considered is the acoustic absorption coefficient.
The acoustic absorption coefficient defines the third output parameter and the stationary wave tube (Kundt tube) is the main tool used to determine material acoustic absorption characteristics.
To determine the acoustic absorption coefficient for different specimens, it is necessary to place the microphone successively on [x.
For acoustic absorption coefficient measurement between 125 Hz and 500 Hz, [x.
The curve of acoustic absorption coefficient cannot be fitting by a mathematic equation hence the choice of this values corresponding to 30 definite frequencies.
As an example, Table 5 indicates influential factors and their corresponding coefficients for different outputs (foam density, shock coefficient, and acoustic absorption coefficient [alpha] for two frequencies).
The acoustic absorption coefficient at f = 1330 Hz has a polynomial model form without interactions (Eq.
i] is the acoustic absorption coefficient of some construction elements of the room.
i] is that surface with the acoustic absorption coefficient [a.