Filetype
In order to simplify computational methods based on dynamic programming, an approximative procedure based on upper and lower bounds of the optimal cost was recently introduced. The convergence properties of this procedure are analyzed in this paper. In particular, it is shown that the computational effort in finding an approximately optimal control law by relaxed value iteration is related to the
This thesis presents studies of solar wind-magnetosphere coupling using dynamic neural networks in combination with statistically correlative analysis. The primary contribution of the thesis is dynamic neural network models that can be implemented for near real-time predictions of geomagnetic storms from the solar wind alone. With acceptable accuracy, the prediction time has been extended up to 5
An introduction to the special issue of the European Journal of Migration and Law dealing with undocumented migrants.
The radiation balance of urbanised catchments differs from their rural counterparts, with snowpacks experiencing either enhanced or decreased irradiance depending on snowpack location and condition. As snowmelt is largely driven by radiation inputs, changes to localised irradiance (and melt rates) have implications for urban runoff generation. Storm- and wastewater drainage systems in cold regions
Tre idéhistoriska studier
Individinriktad historik över den svenska adelsätten Tersmeden från dess äldsta kända rötter i Stade och Flensburg under 1400- och 1500-talen fram till de av dess svenska medlemmar som föddes före år 1900. Därtill historik över Tersmedenska släktföreningens verksamhet sedan 1912 samt över Tersmedenska släktarkivet.
Abstract is not available
Popular Abstract in Swedish Analytisk kemi är den gren inom kemin där man studerar, utvecklar och använder metoder och tekniker för att undersöka olika ämnens kemiska innehåll och exakta sammansättning. Den analytiska kemin spelar en mycket central roll inom många vitt skilda vetenskapliga fält och utgör den grund på vilka alla kemiska analyser vilar – medicinska tester och studier, kvalitetskontrFuelled by the current demands of the biological sciences, there is today a growing interest in microscale analysis. Miniaturisation of analytical instruments has become a long-standing trend. Miniaturisation offers several advantages, including rapid separation times, high performance and throughput, reduced costs, etc. But the increased surface area to volume ratio can sometimes be a disadvantag
Both Haemophilus influenzae type b (Hib) and nontypeable H. influenzae (NTHi) are important human pathogens causing invasive and mucosal infections. Currently there are number of vaccines available against Hib infections. Hib vaccines consist of the capsular polysaccharide antigen, polyribosyl ribitol phosphate (PRP) of Hib, coupled to different protein carriers. These vaccines are not effective a
