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Heat Release in the End-Gas Prior to Knock in Lean, Rich and Stoichiometric Mixtures With and Without Egr

SI Engine knock is caused by autoignition in the unburnt part of the mixture (end-gas) ahead of the propagating flame. Autoignition of the end-gas occurs when the temperature and pressure exceeds a critical limit when comparatively slow reactions - releasing moderate amounts of heat - transform into ignition and rapid heat release. In this paper the difference in the heat released in the end-gas

Expressiveness of the modal mu-calculus on monotone neighborhood structures

We characterize the expressive power of the modal mu-calculus on monotone neighborhood structures, in the style of the Janin-Walukiewicz theorem for the standard modal mu-calculus. For this purpose we consider a monadic second-order logic for monotone neighborhood structures. Our main result shows that the monotone modal mu-calculus corresponds exactly to the fragment of this second-order language

Fixed parameter algorithms and other results for convex patitions

It is known that the minimum edge length convex partition MWCP of polygons with holes (an example of a PSLG) is NP-hard. Partitioning polygons with holes into the minimum number of convex polygons MNCP is also known to be NP-hard. We show that The MWCP and MNCP problem for general PSLGs where the sum of the hole vertices and re ex vertices inside the convex hull is sub-logarithmic can be solved in

Bäst förmåga eller starkast drivkraft? - Reflektioner kring rekrytering till forskarutbildning

I denna korta artikel reflekterar jag kring rekrytering till forskarutbildning och de faktorer som styr och influerar processen: (i) Det som ska ligga till grund för beredning och beslut enligt Högskoleförordningen och föreskrifter/beslut vid enskilda lärosäten, (ii) Målformuleringar för forskarutbildning enligt Högskolelagen, Högskoleförordningen och föreskrifter/beslut vid enskilda lärosäten, (i

Catalytic Incineration of CO and VOC Emissions over Supported Metal Oxide Catalysts

Catalytic incineration is one of the methods to reduce the emissions of CO and VOCs. Low operation temperature and low catalyst cost are essential parameters for catalytic incinerators. Pt/Al2O3 catalysts are frequently used today, but the cheaper metal oxide catalysts can be very competitive if comparable overall activity is obtained. This thesis concerns how it is possible to decrease the operat