Search for dissertations about: "Digital geometry"

Showing result 21 - 25 of 158 swedish dissertations containing the words Digital geometry.

  2. 21. Ice Formwork : The Rationale and Potential of Ice-Based Moulding Systems  for the Production of Complex-Geometry  Precast Concrete

    Author : Vasily Sitnikov; Oliver Tessmann; Tim Ainsworth Anstey; Harald Kloft; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ice Formwork; High-Performance Concrete; Digital Fabrication; Refrigeration; Embodied Energy; Grey energy; Carbon Footprint.; Architectural Technology; Arkitekturteknik;

    Abstract : This doctoral thesis analyses and makes proposals about adapting the poten-tial of digital means of production to the needs of the concrete industry. More precisely, it aims at fostering the development of sustainable material cycles and the innovation in manufacturing methods in the field of architectural and structural design of ultra-high performance fibre-reinforced concrete (UHPFRC). READ MORE

  4. 22. The Complex World of Superstrings : On Semichiral Sigma Models and N=(4,4) Supersymmetry

    Author : Malin Göteman; Ulf Lindström; Daniel Waldram; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Non-linear sigma models; extended supersymmetry; semichiral superfields; neutral hyperkähler geometry; generalized Kähler geometry; T-duality; vector multiplets; Theoretical Physics; Teoretisk fysik;

    Abstract : Non-linear sigma models with extended supersymmetry have constrained target space geometries, and can serve as effective tools for investigating and constructing new geometries. Analyzing the geometrical and topological properties of sigma models is necessary to understand the underlying structures of string theory. READ MORE

  5. 23. Digital product catalogues : an evaluation of presentation and visualization techniques

    Author : Anders Follin; Byggnadsmekanik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; photorealistic visualization; three-dimensional modeling; Advanced digital product catalogue; computer animation; integrated visualization information; relational database;

    Abstract : This licentiate thesis concerns advanced digital product catalogues, with the main focus on product presentation. A computer based digital product catalogue opens new possibilities for advanced product presentation and integration into the existing compute environment. Several new possibilities for product presentation become available. READ MORE

  6. 24. Robust broadband beamforming and digital filter design : methods and applications

    Author : Sven Nordebo; Luleå tekniska universitet; []
    Keywords : ;

    Abstract : This doctoral thesis consists of a summary and six parts corresponding to six different papers. There are two published and three submitted journal papers, and one research report. The summary will highlight the main results and emphasize the interrelationships between different parts. READ MORE

  7. 25. Multiscale Methods and Uncertainty Quantification

    Author : Daniel Elfverson; Axel Målqvist; Frédéric Legoll; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; multiscale methods; finite element method; discontinuous Galerkin; Petrov-Galerkin; a priori; a posteriori; complex geometry; uncertainty quantification; multilevel Monte Carlo; failure probability; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Abstract : In this thesis we consider two great challenges in computer simulations of partial differential equations: multiscale data, varying over multiple scales in space and time, and data uncertainty, due to lack of or inexact measurements.We develop a multiscale method based on a coarse scale correction, using localized fine scale computations. READ MORE