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The catalytic hydrogenation of ethyl acetate to ethanol was studied at ambient pressure in the temperature range from 463K to 513K using Cu/ZrO2 catalysts obtained by co-precipitation as a function of the Cu loading. The hydrogenation was established as a reproducible probe reaction by determining optimal reaction parameters without deactivation or thermodynamic limitations. Power-law kinetics were...
Content providers compete for the user's attention on information services offered. The placement of content within a Web site is an important factor, influencing behavior of and choices made by users.The Gugubarra project aims at understanding the interests of registered users, by evaluating their behavior and actions performed while visiting the site. For this purpose, we have introduced the concept...
Real-scale Semantic Web applications, such as Knowledge Portals and E-Marketplaces, require the management of voluminous repositories of resource metadata. The Resource Description Framework (RDF) enables the creation and exchange of metadata as any other Web data. Although large volumes of RDF descriptions are already appearing, sufficiently expressive declarative query languages for RDF are still...
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.