Search for dissertations about: "Fe"
Showing result 21 - 25 of 1141 swedish dissertations containing the word Fe.
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21. Measurements of High-Precision Atomic Data with Applications to Astrophysics and Cosmology
Abstract : Investigations of astrophysical spectra require accurate atomic data, such as wavelengths and transition probabilities. This thesis provides high-precision atomic data for astrophysical and cosmological applications. The measurements have been carried out using Fourier transform spectrometry on light produced in a hollow cathode light source. READ MORE
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22. Restraint Effects in Concrete Bridges : A Study of Cracking due to Thermal Actions and Shrinkage in Portal Frame Bridges
Abstract : Thermal actions and shrinkage cause volume changes in concrete structures. In structures which are restrained from movements, the restraint effects can cause cracking. However, when cracking occurs, the structure can deform to some extent, which reduces the restraint stresses and thus also the crack widths. READ MORE
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23. Construction of an apparatus for production of size-selected clusters, characterisation of magnetic and optical properties of cluster films and studies of the photostability of sunscreens
Abstract : .... READ MORE
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24. Fractionation of Cu and Fe isotopes in metal-rich mine sites : biotic and abiotic processes
Abstract : After mineral exploitation the residual grinded and milled material, rich in sulphide minerals and heavy metals, is often left exposed to the atmospheric variables. This weathered mine waste material can lead to the formation of acid mine drainage (AMD) which has negative effects to the environment. READ MORE
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25. Investigations on the Oxidation of Iron-chromium and Iron-vanadium Molten Alloys
Abstract : With the progress of high alloy steelmaking processes, it is essential to minimize the loss of valuable metals, like chromium and vanadium during the decarburization process, from both economic as well as environmental view points. One unique technique to realize this aim, used in the present work, is the decarburization of high alloy steel grades using oxygen with CO2 in order to reduce the partial pressure of oxygen. READ MORE