Lattice Boltzmann method (LBM) is a method that can be used to capture the detailed activities of the transport processes at microscale. Here LBM is used to model the porous anode for an anode-supported Solid Oxide Fuel Cell (SOFC). The purpose of this study is to investigate the effects of electrochemical reactions on the transport processes by a 3D model at microscale. A porous 3D modeling domai

Popular Abstract in Swedish Denna avhandling beskriver tillverkning av partiklar av metaller och halvledare samt dessas användning i nya typer av elektroniska komponenter och nanostrukturer. Partiklarna tillverkas med aerosolteknik, dels med kända metoder och dels med nyutvecklade. Partiklarna är mellan 5 och 80 nanometer (miljarddels meter) i diameter, och deras bildning, struktur och sammansättnAerosol technology was used to develop new methods for fabrication of size-selected, nanometer-sized particles of metals and semiconductors. Such particles were used to realize different types of quantum devices and nanometer-sized structures. The thesis contains an introduction, five papers on particle fabrication, and five papers on particle-based quantum devices. Size-selected gallium and indi

Abstract is not available

Popular Abstract in Swedish Blodkärlen har till uppgift att distribuera syre och näring till kroppens alla celler, samt att borttransportera slaggprodukter som sedan bildas efter nyttjandet. Dessutom förmedlas en rad signalsubstanser till kroppens vävnader via blodcirkulationen. Eftersom mängden cirkulerande blod är begränsad är det viktigt att blodkärlen, bestående av artärer som för blodet från This thesis aims at characterizing the endothelin (ET) receptors in different vascular beds of man and rat. The ET-A receptor was shown to be the only contractile ET receptor present in all vascular regions, with the exception of the rat mesenteric vein where a weak ET-B receptor-mediated contraction was seen. Treatment with antisense oligodeoxynucleotides to the ET-A receptor mRNA during organ cu

The objectives of this project were to estimate network-based crash prediction models that will predict the expected crash experience in any given geographic area as a function of the highway link, intersection and land use features observed in the area. The result is a system of GIS programs that permit a polygon to be drawn on a map, or a set of links and intersections to be selected, and then p

Faster than Nyquist (FTN) signaling is extended. We send FTN pulse trains that overlap in both time and frequency; this is called two dimensional Mazo signaling. The minimum time and frequency separation that achieves square minimum distance 2 for root raised cosine pulses is found. Two dimensional signaling is more bandwidth efficient than one dimensional. A simple decoder is tested and it verifi

No abstract available.

Value added tax (VAT) is a key part of the fiscal revenue of many countries. Yet this broad-based tax on consumer spending exempts financial services. This seems puzzling to many, particularly given the significance of that sector and the size of its value-added in today's world economy. The fact that the European Commission is currently reviewing the tax treatment of financial activities in the E

Popular Abstract in Swedish Avhandlingen är en sammanläggningsavhandling, bestående av fem artiklar, kring hur finansiella behov hanteras i nya och små företag. Den empiriska datan har insamlats genom två enkätstudier och en fallstudie. Det viktigaste bidraget i avhandlingen består i utvecklingen av begrepp som gör det möjligt att förstå s.k. finansiell bootstrapping i nya och små företag. Med finThe overall aim of this composite thesis, consisting of five articles, is to develop concepts for furthering the understanding of small business managers´ handling of finance. The main contribution is the development of a conceptual understanding of so-called financial bootstrapping behavior in small businesses (referring to the use of methods for minimizing and/or eliminating the need for financi

This paper seeks to investigate the connectivity construct in logistics and supply chain management literature. A review of existing literature is conducted regarding connectivity on a broad basis. The review is based on a general search in the ABI-Inform database for articles containing the twin search phrases of connectivity and logistics, and connectivity and supply chain management. An initial