THERE are two methods of measuring the amounts of sound absorbed by various materials. One is the reverberation method of W. C. Sabine, in which a specimen of the material to be tested is mounted on ...

This latest accomplishment joins the company’s previously secured ASTM certifications, enhancing the features and expanding the end-uses for its microalgae-based bio-cement and bio-concrete. BOULDER, ...

This is a preview. Log in through your library . Abstract Molded fiberglass headliners and hoodliners are widely used in vehicles for controlling sound. These parts frequently must be molded to fit ...