Sökresultat

Popular Abstract in Swedish Gränsvärden för NOX-utsläppen i avgaserna från tunga dieselmotorer kommer att minskas i den Europeiska Unionen från 3,5 g/kWh (Euro IV) idag till 2,0 g/kWh (Euro V) år 2008. I USA och Japan är trenden likadan och utveckling av ett avgassystem för tunga dieselfordon verkar oundviklig. I detta arbetet har en motorrigg byggts upp som bestod av en 11 l dieselmotor och ett aThe legislative limits for NOX emissions in the exhaust gas from heavy-duty diesel engines will be decreased in the European Union from today 3.5 g/kWh (Euro IV) to 2.0 g/kWh in 2008 (Euro V). In the USA and Japan a similar trend can be seen. Accordingly, the development of an exhaust aftertreatment system for heavy-duty trucks seems unavoidable. In this work, an 11 l diesel engine rig has been bu

Popular Abstract in Swedish I djurvärlden finns två dominerande ögontyper: kameraögon och facettögon. Kameraögat har en enda lins som fokuserar en bild på ögats retina, medan facettögon har många delögon som var och en har en lins. Båda typerna av ögon hittas inom Arthropoda men facettögon är klart vanligast. Det mest spridda typen av facettöga kallas appositionsöga och har en lins till varje ljusIn the superposition compound eye each rhabdom (light sensitive unit) receives light through many ommatidial facets, while in the apposition compound eye every rhabdom receives light from a single facet. The superposition design increases photon capture, which is an advantage in dark environments. Despite their advantage in dim light, superposition eyes can sometimes be found in insects that live

Abstract is not available

A strategy for control of the glucose feed rate in cultivationsof E.coli is discussed. By making probing pulses in the feed rate it is possible to detect and avoid a characteristic saturation linked to undesirable by-product formation. A simplification of a previous algorithm is presented and analyzed.

This thesis presents my research journey in the Department of Chemical Physics,Lund University. Multidimensional fluorescence polarization imaging is used to study single LH2s. The method uses linearly polarized excitation light and the emission is detected through a polarizer. The multidimensionality is achieved by rotating the excitation and detection polarizations which enables the construction

Since the early 1960s, the internationally acclaimed and highly distinguished Swedish geographer Gunnar Olsson has made substantial contributions to his own discipline. In addition, because of the transgressive nature of his work and writing, which often borders to art and philosophy, his ideas and approaches have reached a wider audience of those interested in the history and geography of ideas,