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Large Eddy Simulation of a turbulent flow past a pair of symmetric backward-facing steps: A sensitivity analysis

Large Eddy Simulation is used to study the flow behind a pair of symmetric backward facing steps. As reported in the literature, the flow exhibits an asymmetric pattern characterized by the deflection of the jet toward of the walls. The LES results are compared to LDA measurements showing the ability of the present numerical tool to capture the complex features of the flow. Furthermore, a sensitiv

NMR Diffusion Studies in Heterogeneous Systems. Surfactant solutions, Polymer solutions and Gels

The aim of this study has been to investigate the self-diffusion behaviour in polymer solutions and in surfactant solutions using the pulsed field gradient (PFG) NMR technique. The NMR self-diffusion experiment was shown to provide detailed information in complex surfactant mixtures. In particular, the microemulsion phase and the hexagonal phase of Didodecyldimethylammoniumsulphate (DDAS) formed

Beyond von Neumann: weakly programmable processor arrays and their programming

The age of parallelism is here. For a sustainable software development for massively parallel architectures the von Neumann model need to be replaced by one with native support for parallelism. We suggest a data flow model for signal processing applications. This will make it possible to reuse software implementations for different targets and future platform generations. We also outline our devel

Comparison of Ray Tracing and Channel-Sounder Measurements for Vehicular Communications

This paper presents the results of an accuracy study of a deterministic channel model for vehicle-to-vehicle (V2V) communications. Channel simulations obtained from the ray-tracing model developed by TU Braunschweig are compared to data gathered during the DRIVEWAY V2V channel measurement campaign at 5.6 GHz in the city of Lund in summer 2009. The analysis focuses on PDP and channel gains in an ur

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Abstract in French L’étude de l’effet d’amorçage syntaxique (syntactic priming) permet d’examiner la relation (potentielle) entre input et output dans l’interaction. On observe un effet d’amorçage lorsque la présentation d’un item (l’amorce) facilite le traitement ultérieur d’un item similaire (la cible). L’amorçage syntaxique ou structurel est un phénomène de réutilisation de la structure syntaxi

Introduction to "The Oeuvre of Nina Sadur"

The article presents Nina Sadur's artistic biography, connecting important events in her life to key passages in her texts. The article is based on recorded interview material, published criticism and a reading of her oeuvre.