Abstract: Vein quartz is the major source of silicon for manufacturing of solar cells, computer chips, and silicon carbide. The aim of the investigation was to enhance the purity of exporting semi ...

Penis sleeves are easy ways to help add girth and length, add a bit of fun to the bedroom, or help dampen the sensations (if you’re looking to last longer). But no matter what your personal reasons ...

Institute of Technical and Macromolecular Chemistry, University of Paderborn, Warburger Str. 100, 33098 Paderborn, Germany, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 ...