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Previous research works on solid oxide fuel cells (SOFCs) have mainly focused on the large length scale phenomena, such as physical and chemical transport phenomena at macroscale. A new approach is proposed in this work, which combines concepts from all-atom (AA) modeling with coarsegraining (CG) molecular dynamics (MD) method to reveal the replacement mechanism of Yttria-Stabilized Zirconia (YSZ)

Previously we reported the extreme water repellency of randomly organized macro-/nanoporous silicon surfaces [1]. The texturized silicon with hierarchical porous structure in micrometer and nanometer scale was shown to exhibit the superhydrophobic behaviour. Contact angles as high as 176º can be easily achieved with further fluoroalkylsilane modification of the porous surfaces. Porous silicon tech

Fast and reliable time and frequency synchronization is crucial for packet-based orthogonal frequency division multiplex (OFDM) systems. In this paper we compare and analyze preambles for OFDM systems based on repeated OFDM data symbols or repeated short pseudonoise sequences (PN-sequences). We make an analytical evaluation for AWGN channels and simulate the performance in oneand two-tap Rayleigh

The transition radiation tracker (TRT) is one of the three subsystems of the inner detector of the ATLAS experiment. It is designed to operate for 10 yr at the LHC, with integrated charges of /spl sim/10 C/cm of wire and radiation doses of about 10 Mrad and 2/spl times/10/sup 14/ neutrons/cm/sup 2/. These doses translate into unprecedented ionization currents and integrated charges for a large-sca

In the Full-Scale Optimization approach the complete empirical financial return probability distribution is considered; and the utility maximizing solution is found through numerical optimization. Using a portfolio choice setting of three UK equity indices we identify several utility functions featuring loss aversion and prospect theory; under which Full-Scale Optimization is a substantially bette

The aerobic biodegradation of toxic organic volatile contaminants is always limited by the low aqueous solubility of O2. Therefore, intensive bubbling or surface aeration is required to supply the bacterial community with sufficient O2 to carry out pollutant mineralization. This can cause the hazardous volatilization of toxic volatile contaminants. Photosynthetic oxygenation overcomes these limita

Popular Abstract in Swedish Jonstråleanalys är ett fält inom tillämpad fysik vars utövare sysselsätter sig med bestrålning av olika föremål med joniserande strålning från partikelacceleratorer. Fysiker och kemister observerade i början av nittonhundratalet att joniserande strålning såsom alfapartiklar från radioaktiva källor ger upphov till olika sorters strålning när den växelverkar med materiThe overall goal of this thesis is to test new detector technologies and data acquisition systems, for use in Ion Beam Analysis IBA. This is intended to complement the existing setup, which is routinely used at Lund Ion beam Analysis Facility LIBAF. Proton induced X-ray emission is a well-known method for trace element analysis of heavier elements, but trace element analysis of elements below alum

The borderless world is providing new opportunities for conducting business, both within Europe and between continents. Sustainable competition will be harder to attain and competition will become fiercer, day-by-day. The Austrian school of strategy emphasizes change, continuous innovation, and entrepreneurial discovery as sources of supernormal profits. An important assumption is that these super

Popular Abstract in Swedish Hur kan man skapa en tredimensionell modell av ett objekt eller en plats från tvådimensionella bilder? Det är den centrala frågan i den här avhandlingen och en viktig fråga i datorseende generellt. Normalt delar man upp problemet i en serie basproblem. Ett basproblem kan till exempel vara att skatta kamerans rörelse mellan två bilder eller kamerapositionen för en ny bilThis thesis is concerned with the geometrical parts of computer vision, or more precisely, with the three-dimensional geometry. The overall aim is to extract geometric information from a set of images. Most methods for estimating the geometry of multiple views rely on the existence of robust solvers for a set of basic problems. Such a basic problem can be estimating the relative orientation of two

We report on a quantum dots-in-a-well infrared photodetector (DWELL QDIP) grown by metal organic vapor phase epitaxy. The DWELL QDIP consisted of ten stacked InAs/In0.15Ga0.85As/GaAs QD layers embedded between n-doped contact layers. The density of the QDs was about 9 x 1010 cm-2 per QD layer. The energy level structure of the DWELL was revealed by optical measurements of interband transitions, an