Quadratic residue diffuser-resonator (QRD-R) N7: design development of QRD using helmholtz resonator as a well
M Lianto, L Yuwana, S Indrawati… - Journal of Physics …, 2021 - iopscience.iop.org
Noise is a sound that occurs at incorrect time and place so being a nuisance for human
activity. Many efforts have done to try to control the noise. One of them using acoustic …
activity. Many efforts have done to try to control the noise. One of them using acoustic …
Acoustic performance of sonic crystal made from a half of PVC pipe
P Gontjang, I Susilo, MA Anas… - Journal of Physics …, 2019 - iopscience.iop.org
As an alternative ingredient that is safe for health, the sonic crystal (SC) is expected to
provide acoustic performance like other acoustic materials. Generally, SC is designed with …
provide acoustic performance like other acoustic materials. Generally, SC is designed with …
Skyline quadratic residue diffuser-resonator (SQRD-R): a study about its characteristic
M Lianto - Journal of Physics: Conference Series, 2021 - iopscience.iop.org
To create a comfortable acoustic environment both indoor and outdoor, we need to control
the noise. In the room, noise comes from both outside and inside the room for example is …
the noise. In the room, noise comes from both outside and inside the room for example is …