The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Sound absorption characteristic of the compound aluminum foam was investigated in this paper. The absorption coefficient of the foam was measured in different conditions by the transfer function method. Compared with the single aluminum foam, the compound aluminum foam shows a significant improvement in sound absorption if the single foam and the compound foam have a same thickness of sample and depth...
Metal foams, especially open-celled foams, have been greatly improved in the acoustic performance in high frequencies. In this paper, the acoustic absorption behaviour of the compound Al-alleged foam in low frequencies was studied. The compound Al-alleged foam is composed of two Al foam plates and an air-gap which between the two Al foam plates. The absorption coefficient of the foam at low frequencies...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.