Low complexity plant models are essential for model based control design. Often a detailed high order model is available and simplification to a low order approximative model is needed. This paper presents a case study of two model reduction methodologies applied on the automotive engine air path. The first methodology is based on balanced truncation of models obtained by linearization around equi

Rättfärdigande av krig har i alla tider varit ett centralt inslag i internationell politik. Kan militärt våld rättfärdigas? För vilka ändamål kan militära interventioner legitimeras? Hur rättfärdigas humanitära interventioner? Med vilka etiska kriterier försvaras krigen i Afghanistan, Irak och Israel-Palestina? Dessa är några av de många intressanta frågor som behandlas i denna bok. Antologin utg

Popular Abstract in Swedish Vår galax, Vintergatan, är en spiralgalax som innehåller bortåt 200 miljarder stjärnor. En mörk natt kan man urskilja ca 3000 av dessa på himlavalvet. Tittar man noggrant så kan man också se ett diffust ljusband som sträcker sig genom, bland andra, stjärnbilderna Skytten och Cassiopeia. Detta diffusa band är det samlade ljuset från alla de miljarder stjärnor i VintergatThe origin and evolution of the thin and thick disks in the Galaxy have been studied by means of detailed stellar abundances. High-resolution spectra of 102 F and G dwarf stars have been obtained with the spectrographs on the ESO 3.6-m and ESO 1.5-m telescopes on La Silla (Chile), the Very Large Telescope (VLT) on Paranal (Chile), and the Nordic Optical Telescope (NOT) on La Palma (Canary Islands,

The present work studies the separated flow in a square channel with ribs on one wall by using the PIV method. In this study, the spacing between ribs is kept constant and the heights of rib are varied in order to investigate the influence of the pitch-to-height ratio, P/e on the flow structures. Depending on the various pitch ratios, the enclosure between ribs can be regarded as closed or open ca

In a laboratory study the impact of the surrounding light on alertness was study. Two types oflight sources were examined, LEDs and T5 fluorescent tubes. The illuminance level in theworking area was kept constant (500 lx), while the surrounding light was varied between 100och 350 cd/m2. Subjective ratings of the emotional status and the experience of the lightingenvironment as well as physiologica

Atmospheric aerosol particles affect our living environment in many ways. Their effects are influenced by the interaction between the aerosol particles and the ubiquitous water vapour. The number-size distribution is a primary important parameter for aerosol particles and can be measured using the differential mobility particle sizer (DMPS). Programs have been developed to invert DMPS measurement

Energianvändningen inom sektorn bostäder och service var år 2005 totalt 145TWh, vilket motsvarar 36 % av den slutliga energianvändningen i landet. Större andelen, 87 %, av energin används i bostäder och lokaler för uppvärmning, varmvatten och drift av apparater och installationer. Enbart uppvärmning och varmvatten svarar för 60 % av den energiförbrukningen och resten av energiförbrukningen går til

The primary aim of the research project is to analyse the potential for the application of lidar and fluorescence techniques in building investigation, and also to establish a scientific remote-sensing method for surveying and analysing the historical facade that is non-destructive and can be used in-situ. The fluorescence lidar method uses point-monitoring and scanning of areas that can provide m

We have realised a new technology for the integration of VFETs and RTDs. For these tunnelling transistors (so called resonant tunnelling permeable base transistors) we have developed large signal models which have been implemented in a Cadence simulation environment. The DC I-V characteristics are reproduced to a very high degree in these models. The models are further used for simulations of the

In Psalms evil is usually existential and victim-orientated. Suffering is not a theoretical problem but an experienced reality. Consequently, two aspects of the modern so-called theodicy problem are in focus. (1) The role of the God of the petitioner: How does God engage with evil? What does God do to overcome it? Beside this practical aspect we can detect a more theoretical question: (2) Is suffe

Popular Abstract in Swedish Amerikanska krigare i Vietnam: Krigarvärderingar och myten om krigserfarenheten under Vietnamkriget, 1965-1973.In the Western world there has been a general consensus that in the aftermath of Auschwitz and Hiroshima, romanticized masculine images of war and soldiering have reached a turning point. This book challenges the view that the post- 1945 era has to a great extent been without romantizations of warriorhood. In the thesis I show that the American combat soldiers in Vietnam were not beyond the influe