Preparation of homogeneous vitreous materials for electronic and optical devices

Vitreous material builds up as series of solidified layers on inside walls of sealed quartz ampoule containing molten constituents of material, and forms well defined shapes to close dimensional tolerances. Ampoules are made of material which does not react with melt and has lower thermal expansion coefficient than solidified layer

The Papyrus Digital Library: Discovering History in the News

Abstract. Digital archives comprise a valuable asset for effective information retrieval. In many cases, however, the special vocabulary of the archive restricts its access only to experts in the domain of the material it contains and, as a result, researchers of other disciplines or the general public cannot take full advantage of the wealth of information it offers. To this end, the Papyrus research project has worked towards a solution which makes cross-discipline search possible in digital libraries. The developed prototype showcases this approach demonstrating how we can discover history in news archives. In this demo we focus on demonstrating two of the end user tools available in the prototype, the cross-discipline search and the Papyrus browser

Plasma enhanced decomposition of propylene on activated carbon fibers

Activated carbons with uniform size micropores appear to have the highest potential for improvement of their molecular sieving properties by employing chemical vapor deposition techniques. In this work RF plasma was used to enhance propylene cracking and to examine its effect on the pore structure, chemical surface groups and selective CO2 adsorption of a commercial activated carbon fiber. Plasma treatment of carbon fibers was carried out under various experimental conditions. Raman, FTIR and XPS spectroscopy were used to evaluate the modifications on the fibers surface. SEM was also used for the observation of fibers surface before and after plasma treatment

The Papyrus digital library: Discovering history in the news

Digital archives comprise a valuable asset for effective information retrieval. In many cases, however, the special vocabulary of the archive restricts its access only to experts in the domain of the material it contains and, as a result, researchers of other disciplines or the general public cannot take full advantage of the wealth of information it offers. To this end, the Papyrus research project has worked towards a solution which makes cross-discipline search possible in digital libraries. The developed prototype showcases this approach demonstrating how we can discover history in news archives. In this demo we focus on demonstrating two of the end user tools available in the prototype, the cross-discipline search and the Papyrus browser. © 2011 Springer-Verlag