Search results

Popular Abstract in Swedish Fåglars flygförmåga I alla tider har vi fascinerats av fåglars förmåga att flyga, och många försök att förstå och efterlikna dem har gjorts. Kanske den förste som på allvar intresserade sig för mekanismerna bakom fåglars flykt var Leonardo da Vinci som runt år 1500 funderade på hur fåglar alstrar lyftkraft. Leonardo skissade också på 100-tals maskiner som var tänkta atI share my fascination of bird flight with many others, and here I summarise my thesis on the subject. This thesis emphasises the mechanics of bird flight by focusing on flight mechanics, wake dynamics and flight performance. Gliding flight performance of a jackdaw was measured in a wind tunnel and I conclude that the current model for predicting optimum wingspan as a function of forward gliding

Med finansiering från Naturvårdsverket har forskare från IVL, SMHI, Göteborgs Universitet samt SLU genomfört en analys av de ekonomiska värdena av den negativa inverkan av marknära ozon på växtligheten i Sverige vid olika scenarier för ozonbelastning och i relation till föreslagna målvärden vad gäller preciseringen för ozon och växtlighet inom miljömålet Frisk Luft. Arbetet utgör i stor utsträckni

Solid oxide fuel cells (SOFCs) have the attractive feature to be able to make use of hydrocarbon fuels in their operation by reforming the fuel into pure hydrogen, either internally or externally. This can open up for a smoother transition from the existing hydro-carbon economy toward a more renewable hydrogen economy. Since both SOFCs and internal combustion (IC) engines can make use of hydrocarb

In this paper, we discuss the internet low bit rate codec (iLBC) with an emphesis on the frame-independent longterm prediction. The frame-independent long-term prediction is a method to exploit pitch-lag correlations in the encoding of speech without suffering multiple-frame speech degradation in connection with transmission loss. We present mean opinion scores for the iLBC codec and show by means

The subject who understood. The Swedish Reformation discourse and the early modern process of integration The thesis concerns why it in the discourse of the Reformation was so important to repeat statements about the need for Christendom to go back to its true heritage and that the sermon should be understood by everyone, and the statements consequences for the possibility of formulating order, co

In the research on two of the most prominent persons among those who rescued Jews from the Holocaust, Oskar Schindler and Raoul Wallenberg, a reappearing purpose has been to separate mythical, and therefore more or less false, elements in the story from the true, and implicit, academic historical writing. However, during the last decades, it has been obvious that history is not only, and sometimes

Popular Abstract in Swedish Vilken musiksmak har blodceller? Forskningen som presenteras i denna avhandling undersöker och drar nytta av hur olika celler uppför sig när de utsätts för ljud. På samma sätt som människor uppskattar olika sorters musik så reagerar olika typer av celler annorlunda beroende på vilka ljud de utsätts för. Cellerna är dessutom ganska konservativa. När de utsätts för ett vOver the last decades the ongoing work in the fields of Lab-on-a-Chip and Micro-Total-Analysis-Systems has led to the discovery of new or improved ways to handle and analyse small volumes of biofluids and complex biosuspensions. The benefits of working on the microscale include: miniaturization of the analysis systems with less need for large sample volumes; temporal and spatial control of suspend

In this paper we propose a framework for the testing of system-on-chip (SOC), which includes a set of design algorithms to deal with test scheduling, test access mechanism design, test sets selection, test parallelization, and test resource placement. The approach minimizes the test application time and the cost of the test access mechanism while considering constraints on tests, power consumption