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A Study of Indoor Aerosol Size Distribution and Attachment of Radon Daughters

The particle size distribution in 11 different dwellings was studied during 5-7 days, samples being taken every 15 min. Large variation in the aerosol concentration has been found. Also the size distribution of the aerosol varies depending on the level of activity in the home, e.g. smoking and cooking. The average area median diameter found in the dwellings was 0.2 ,am. A technique for the measure

The Genius of the System? On the effects of public support, regional film funds and film policy on Swedish cinema

The present paper will place recent Swedish cinema against the background of the evolving public film policy and support – transnational, national and regional – during the last five decades although with a focus on the last few decades.. The purpose is an attempt to map how certain kinds of films, filmmakers and even locations appear to have been somewhat systematically endorsed or made possible

Timing Problems in Real-Time Systems

The article describes and analyzes how random time delays effect control loops that are closed over a communication network. Analysis as well as LQG-design are presented. The optimal controller is using timestamps to determine the timedelay between the sensor and the controller.

Applying coagulation, flocculation and discfiltration in tertiary treatment

Reducing eutrophication in our surface waters caused by nutrient overload is of importance in order to ensure an environment in ecological balance for future generations. Municipal wastewater treatment plants are the main point source of nutrients emissions. Effluent water can be treated by introducing a final advanced treatment step to existing wastewater treatment plants. The present thesis conc

Poly (3-hydroxybutyrate) from a moderate halophile: production and modification for new applications

Popular Abstract in English Polyhydroxybutyrate (PHB) is a homopolymer belonging to the family of biopolyesters, polyhydroxyalkanoates (PHA) produced by different bacteria and archaea as intracellular granules often under conditions of metabolic stress due to a limited supply of essential nutrients. The properties of the PHAs are similar to those of polyethylene and polypropylene and can hence repPolyhydroxybutyrate (PHB) is a homopolymer belonging to the family of biopolyesters, polyhydroxyalkanoates (PHA) produced by different bacteria and archaea as intracellular granules often under conditions of metabolic stress due to a limited supply of essential nutrients. The properties of the PHAs are similar to those of polyethylene and polypropylene and can hence replace these fossil based poly