Sökning: "benzene"
Visar resultat 11 - 15 av 107 avhandlingar innehållade ordet benzene.
11. Residential biomass combustion - emissions of organic compounds to air from wood pellets and other new alternatives
Sammanfattning : It is important to increase the use of biofuels for residential heating in order to decrease the use of fossil fuels and their impact on global warming. The smoke from the combustion of biomass contains a large number of compounds, which to varying degrees can affect the environment and human health. LÄS MER
12. Free Molecular and Metal Clusters Studied by Synchrotron Radiation Based Electron Spectroscopy
Sammanfattning : The main purpose of this Thesis is the experimental characterization of the electronic and geometric structures of objects called clusters. A cluster consists of a finite group of bound atoms or molecules. Due to its finite size, it may present completely different properties than those of the isolated atom and the bulk. LÄS MER
13. Multiconfigurational perturbation theory
Sammanfattning : The aim of the thesis is to analyze a method which describes the electron correlation in atoms and molecules. The method is based on Rayleigh-Schrödinger perturbation theory with a partitioning of the Hamiltonian into a fairly simple zeroth-order operator and a perturbation operator. LÄS MER
14. Alkylate Petrol. Environmental Aspects of Volatile Hydrocarbon Emissions
Sammanfattning : All hydrocarbons emitted from production and use of petrol are hazardous to human health and the environment, but to a different extent for individual compounds. This thesis compares and characterizes C2-C8 hydrocarbons related to alkylate petrol and conventional petrol. LÄS MER
15. Chemical exposure in the work place : mental models of workers and experts
Sammanfattning : Many workers are daily exposed to chemical risks in their work place that has to be assessed and controlled. Due to exposure variability, repeated and random measurements should be conducted for valid estimates of the average exposure. LÄS MER