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Concept des transports et de mobilité dans des communes de Clos du Doubs et Soubey
(2015)IVT SchriftenreiheReport -
Scatterers on the substrate: Far field formulas
(2015)Research ReportThe near-field to far-field mapping is a tool used to describe radiation at far distances from scatterers. We consider the geometric setting of a bounded scatterer mounted on a substrate, illuminated by a monochromatic plane wave. For such an structure, the far-field functional consists of different asymptotic terms including surface waves. We investigate all contributions closely and show that the only important term at far distances is ...Report -
Auxiliary Space Preconditioners for SIP-DG Discretizations of H(curl)-elliptic Problems with Discontinuous Coefficients
(2015)Research ReportWe propose a family of preconditioners for linear systems of equations arising from a piecewise polynomial symmetric Interior Penalty Discontinuous Galerkin (IP-DG) discretization of H(curl, )- elliptic boundary value problems on conforming meshes. The design and analysis of the proposed preconditioners relies on the auxiliary space method (ASM) employing an auxiliary space of H(curl, )- conforming finite element functions together with ...Report -
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Numerical approximation of statistical solutions of incompressible flow
(2015)Research ReportWe present a finite difference-(Multi-level) Monte Carlo algorithm to efficiently compute statistical solutions of the two dimensional Navier-Stokes equations, with periodic bound- ary conditions and for arbitrarily high Reynolds number. We propose a reformulation of statistical solutions in the vorticity-stream function form. The vorticity-stream function for- mulation is discretized with a finite difference scheme. We obtain a convergence ...Report -
Wirtschaftlich erforderlicher Verkehr der Agglomeration Luzern
(2015)In der politischen Diskussion um die Belastung durch den motorisierten Strassenverkehr wird als Argument oft angeführt, dass dieser Verkehr wirtschaftlich erforderlich wäre. Es wird jedoch selten hinterfragt, was „wirtschaftlich erforderlich“ eigentlich bedeutet und welcher Anteil des motorisierten Strassenverkehrs wirklich „wirtschaftlich erforderlich“ ist, also weder vermieden noch verlagert werden kann.<br/><br/> Dieser Bericht definiert ...Report -
Patentportfolio Schweiz - Studie im Auftrag des Staatssekretariats für Bildung, Forschung und Innovation SBFI
(2015)KOF StudiesReport -
Numerical Steepest Descent for Overlap Integrals of Semiclassical Wavepackets
(2015)Research ReportIn this report we show that classical Gauss quadrature is not adequate for a large class of correlation and overlap integrals originating from quantum mechanics. These integrals are usually highly oscillatory and therefore special methods are necessary for accurate computations. We develop and test a new, highly efficient method based on some recent results about numerical steepest descent to solve the problem stated. Our approach is built ...Report