TY - JOUR A1 - Otto, Andreas H. A1 - Schrader, Sigurd A1 - Steiger, Th. A1 - Schneider, M. T1 - Gas phase deprotonation energies of Sulfuric Acid, Perchloric Acid, Chlorsulfuric Acid and Fluorosulfuric Acid Y1 - 1997 ER - TY - JOUR A1 - Otto, Andreas H. A1 - Prescher, Dietrich A1 - Gey, E. A1 - Schrader, Sigurd T1 - Proton affinities of some polyfluoroalkanes in comparison to the unsubstituted alkanes. The estimation of the proton affinities of polyfluorethylene and polyethylene by applying theoretical methods Y1 - 1997 ER - TY - JOUR A1 - Schrader, Sigurd A1 - Wortmann, Hanna Rosalie A1 - Prescher, Dietrich A1 - Lukaszuk, K. A1 - Otto, Andreas H. T1 - Solvatochromy and electro-optical study of new fluorine-containing chromophores Y1 - 1998 ER - TY - JOUR A1 - Otto, Andreas H. A1 - Steiger, Th. A1 - Schrader, Sigurd T1 - HAICI4 in the gas phase is stronger than HTaF6. Y1 - 1998 ER - TY - JOUR A1 - Otto, Andreas H. A1 - Steiger, Th. A1 - Schrader, Sigurd T1 - The gas phase acidity of trifluoromethanesulphonic acid : an ab initio MO and density functional theory study Y1 - 1998 ER - TY - JOUR A1 - Cser, Adrienn A1 - Donner, Reik Volker A1 - Schwarz, Udo A1 - Otto, Andreas H. A1 - Geiger, M. A1 - Feudel, Ulrike T1 - Towards a better understanding of laser beam melt ablation using methods of statistical analysis N2 - Laser beam melt ablation, as a contact free machining process, offers several advantages compared to conventional processing mechanisms. Although the idea behind it is rather simple, the process has a major limitation: with increasing ablation rate surface quality of the workpiece processed declines rapidly. The structures observed show a clear dependence of the line energy. In dependence of this parameter several regimes of the process have been separated. These are clearly distinguishable as well in the surfaces obtained as in the signals gained by the measurement of the process emissions which is the observed quantity chosen. Y1 - 2002 SN - 88-87030-44-8 ER -