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.
Low-level light signals that are highly dependent on temperature are very common in measurement applications that employ sensors coupled to optical fibres. In order to amplify and condition the signal, photomultipliers are traditionally used together with climatic chambers in which the ambient temperature of the chamber is controlled. The present paper proposes the use of an avalanche photodiode (due...
A process for recovery heavy metals - Cu(II), Ni(II), Pb(II) and Cd(II) - from industrial wastewaters has been studied. This process is called PSU (Polymer Supported Ultrafiltration), and includes complexation of metallic ions with polymers (polyethyleneimine - PEI, or poly(acrylic) acid - PAA), in order to make this solution flow through an ultrafiltration ceramic membrane and to obtain two different...
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.