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In this paper, we present a statistical model for the ultra-wideband (UWB) channel in an industrial environment. Based on a set of measurements in a factory hall, we find that the abundance of metallic scatterers causes dense multipath scattering. This can be seen to produce mostly a Rayleigh distributed small-scale fading signal, with only a few paths exhibiting Nakagami distributions. For the po
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Different aspects of the strong interaction in particle collisions are studied. Most of the work is based on the Lund string fragmentation model for hadron production. A model which incorporates interference between identical bosons in the string model is presented. With this model the consequences for the Bose-Einstein effect are investigated in detail. What happens at the end of the QCD cascades
Revisiting Parsons' 1996 article about disability insurance with imperfect tagging in a two type-economy -- individuals are either able or disabled. Here Parsons' analysis is extended in several directions. The model is generalized to allow for different utility functions over work status. The analysis extends to three different cases of a two-type economy. Finally Parsons' model is extended to th
In this work conformational studies have been performed on peptides from four different systems in an attempt to gain knowledge about their biological function. Circular dichroism (CD) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy in combination with distance geometry and restrained molecular dynamics simulations were the methods used. A detailed conformational study of a cyclic p
Åldrandets betydelser: I det västerländska samhället kämpar vi för långa liv men mot åldrandet. Det är bara en av de motsägelser som ålder och åldrande ger upphov till. I Åldrandets betydelser undersöks olika förhållningssätt till och konsekvenser av åldrande. Boken belyser hur kronologisk ålder inte alltid är densamma som den upplevda och hur samhället möter olika åldrar. Exempel tas från såväl h
Mammalian melanins are of two major types, eumelanins and peheomelanins, which often occur together, then called mixed-type melanins. A method has been developed for analysing the various forms of melanins. Melanin characterisation included their oxidation in permanganate under alkaline conditions, and analysis of the resulting degradation products, pyrrole-2,3,5-tricarboxylic acid (PTCA), pyrrole
In this paper, an algorithm for projective reconstruction of general 3D-curves from a number of its 2D-images taken by uncalibrated cameras is proposed. No point correspondences between the images are assumed. The curve and the view points are uniquely reconstructed, modulo projective transformations. The algorithm is divided into two separate algorithms, where the output of the first is used as i
Nineteen species of the genus Caloplaca from Australia are described and illustrated: eight species (namely: C. bermaguiana, C. conranii, C. filsonii, C. gallowayi, C. kiamae, C. eos, C. tomareeana and C. whinrayi) mainly occur in coastal localities; further eight species (C. aliciae, C. astonii, C. australiensis, C. haematommona, C. marchantii, C. montisfracti, C. rheinigera, and C. streimannii)
