Search for dissertations about: "Tower fields"
Showing result 1 - 5 of 6 swedish dissertations containing the words Tower fields.
-
1. VLSI aspects on inversion in finite fields
Abstract : Different algorithms and architectures for inversion in finite extension fields are studied. The investigation is restricted to fields of characteristic two. Based on a simple transistor model, various architectures are compared with respect to delay, area requirement, and energy consumption. READ MORE
-
2. Stacky Modifications and Operations in the Étale Cohomology of Number Fields
Abstract : This thesis consists of 4 papers. In Paper A we define stacky building data for stacky covers in the spirit of Pardini and give an equivalence of (2,1)- categories between the category of stacky covers and the category of stacky building data. READ MORE
-
3. Dualities, Symmetries and Unbroken Phases in String Theory : Probing the Composite Nature of the String
Abstract : The thesis treats aspects of string/M-theory in anti-de Sitter spacetimes and their supersymmetric completions. By applying the AdS/CFT correspondence, as well as models of spin chains and singletons, we try to attain a better understanding of the underlying symmetries and the unbroken phases of string/M-theory. READ MORE
-
4. Measurements of X-Ray Emission from Laboratory Sparks and Upward Initiated Lightning
Abstract : In 1925 Nobel laureate R. C. Wilson predicted that high electric fields of thunderstorms could accelerate electrons to relativistic energies which are capable of generating high energetic radiation. The first detection of X-rays from lightning was made in 2001 and from long sparks in 2005. READ MORE
-
5. Upscaling and Evaluation of Absorption Based Systems for Co-removal of NOx and SOx from Flue Gases
Abstract : As long as combustion remains a vital part of the energy system, the removal of nitrogen oxides (NOx) will be a challenge that will need to be addressed. In addition, emissions of sulfur oxides (SOx) will be a problem as long as fuels such as coal and oil are used, as is envisaged in every road map suggested by the Intergovernmental Panel on Climate Change (IPPC). READ MORE