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In controller design, not only set-point tracking and disturbance rejection can be considered, also robustness towards process uncertainties is a key issue. In this paper, new robustness measures that divide uncertainties into dead time and non-dead time uncertainties, are presented. It is shown, to the contrary of classic measures such as phase/gain/dead time margins, to guarantee stability towar
This th esis is about management of equipment maintenance in maufactiring firms.
Popular Abstract in Swedish En halvledare är en kristall vars egenskaper till stor del bestäms av dess bandgap, som i någon mening kan ses som lägesenergin hos fria elektroner i kristallen. En kvantprick är en liten volym halvledarmaterial som är inbäddad i ett annat material med större bandgap. Det gör att volymen attraherar laddning eftersom elektroner (precis som allt annat) helst minimerar sinThis thesis presents spectroscopic studies of single self-assembled InP quantum dots (QDs). The electronic properties of these QDs have been studied by photoluminescence (PL) and scanning tunnelling luminescence (STL). The QDs were grown in the Stranski-Krastanow mode and were embedded in GaInP. This material is slightly n-type, giving a Fermi-level close to the conduction band edge at low temper
The number of adult bicycle helmet users in Sweden has stayed over the years relatively stable around 20 % [1]. In Europe the number of helmet users varies between 1 and 40 % depending on country. Research has shown that the use of helmet considerably diminishes head injuries in the case of traffic accidents [2]. In spite of that it is not fully clear what are the main factors why only a small num
Time-varying wave propagation and time-harmonic wave propagation in biisotropic materials are reviewed and the connection between the formulations is established via the temporal Fourier transform. An alternative method to determine the dispersive properties of a bi-isotropic slab from sinusoidal scattering data at normal incidence is presented. A numerical example (realistic, synthetic scattering
Can Europe achieve energy security without compromising climate goals?
In this technical report, we consider ultra light-weight constructions of message authentication in hardware applications. We examine several known constructions and evaluate details around their hardware implementations. These constructions are all based on the framework of universal hash functions.
