UlrichKranz[Red.] Internet-Dienste: Chancen für die Geschäftsentwicklung 1995 N.V.Brilliantov T.Poeschel W.T.Kranz A.Zippelius Translations and Rotations Are Correlated in Granular Gases 2007 In a granular gas of rough particles the axis of rotation is shown to be correlated with the translational velocity of the particles. The average relative orientation of angular and linear velocities depends on the restitution coefficients – the parameters which characterize the dissipative nature of the collision [1,2]. Using the Boltzmann equation and pseudo-Liouville operator technique [1,3] we derive a simple analytical theory for these correlations. We also perform numerical simulations for a wide range of coefficients of normal and tangential restitution. Two different numerical methods were used: Direct simulation Monte Carlo (DSMC) [4] and event-driven molecular dynamics (MD). Surprisingly, the limit of smooth spheres was found to be singular: even an arbitrarily small roughness of the particles gives rise to orientational correlations. The results of the analytical theory are in a good agreement with the numerical simulations [5]. 1) N.V. Brilliantov and T. Poeschel, Kinetic Theory of Granular Gases (Oxford University Press, Oxford, 2004).\ 2) T. Poeschel, and N.V. Brilliantov (Eds.), Granular Gas Dynamics, Lecture Notes in Physics, vol. 624, Springer (2003).\ 3) T. Aspelmeier, M. Huthmann, and A. Zippelius, in Granular Gases, S. Luding and T. Poeschel (Eds), Lecture Notes in Physics vol. 425, Springer, Berlin, (2000), p. 680.\ 4) T. Poeschel and T. Schwager, Computational Granular Dynamics (Springer, New York, 2005).\ 5) N.V. Brilliantov, T. Poeschel, W.T. Kranz, and A. Zippelius, Phys. Rev. Lett., 98, (2007) 128001. PaulHolleis MatthiasKranz AnnekeWinter AlbrechtSchmidt Playing with the Real World Journal of Virtual Reality and Broadcasting 3 2006 FriedhelmKramer FriedhelmKranz Kosten- und Leistungsrechnung mit Datenverarbeitungsanlagen 1970 MichaelaKranz MichaelMerz Wikis in der Softwareentwicklung 2005 MichaelaKranz MichaelMerz Wikis in der Softwareentwicklung 2005 MatthiasKranz AlbrechtSchmidt AlexisMaldonado RaduBogdanRusu MichaelBeetz BenediktHörnler GerhardRigoll Context-aware kitchen utilities. ACM 213-214 2007 MatthiasKranz WolfgangSpiessl AlbrechtSchmidt Designing Ubiquitous Computing Systems for Sports Equipment. IEEE Computer Society 79-86 2007 MichaelRohs PaulHolleis MatthiasKranz HeinrichHußmann Mobile and Embedded Interactive Systems (MEIS'08). GI 133 255-256 2008 RaphaelWimmer MatthiasKranz SebastianBoring AlbrechtSchmidt A Capacitive Sensing Toolkit for Pervasive Activity Detection and Recognition. IEEE Computer Society 171-180 2007