Search for dissertations about: "X-Ray Computed"

Showing result 11 - 15 of 140 swedish dissertations containing the words X-Ray Computed.

  2. 11. Application of X-ray Computed Tomography for Assessment of Additively Manufactured Products

    Author : Amir Reza Zekavat; Lars Pejryd; Leonardo De Chiffre; Örebro universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Additive manufacturing; X-ray computed tomography; Surface roughness;

    Abstract : Additive Manufacturing (AM) is a novel method for fabricating parts from three-dimensional model data, usually by joining materials in layer upon layer fashion. The freedom of design in this method has resulted in new possibilities for fabrication of parts with complex geometries. READ MORE

  4. 12. Evaluation of Asphalt Field Cores with Simple Performance Tester and X-ray Computed Tomography

    Author : Florentina Angela Farcas; Björn Birgisson; Xiaohu Lu; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; asphalt mixture; dynamic modulus; flow number; simple performance tester; X-ray computed tomography; air voids distribution;

    Abstract : The importance of aggregate structure and air voids distribution for asphalt mixture rutting and cracking performance has been well established on the basis of experience and is well documented in the literature. Past and current investigations are limited to assessment of performance based on macroscopic behavior due to the difficulty associated with the quantitative measurement and analysis of the internal structure of asphalt mixtures. READ MORE

  5. 13. Structure Modeling with X-ray Absorption and Reverse Monte Carlo: Applications to Water

    Author : Mikael Leetmaa; Lars G M Pettersson; John Rehr; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; water structure; x-ray absorption; spectroscopy; diffraction; reverse monte carlo; XAS; EXAFS; XANES; RMC; TP-DFT spectrum calculations; Physics; Fysik; kemisk fysik; Chemical Physics;

    Abstract : Water is an important substance. It is part of us, of our environment, and is a fundamental prerequisite for the existence of life as we know it. The structure of water is still, after over 100 years of research on the subject, however under debate. READ MORE

  6. 14. Multi-scale fabric evolution during hydro-mechanical probing of fine-grained soils

    Author : Georgios Birmpilis; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; X-ray Computed Tomography; clay fabric; geomechanical testing; sensitive clays; X-ray Scattering;

    Abstract : The majority of the studies on sensitive clays so far have focused on the hydro-mechanical response at engineering scale, using concepts from continuum mechanics. The fundamental mechanisms at particle scale, underpinning the emerging response, have so far been studied with post mortem analyses. READ MORE

  7. 15. Tracing Molecular Conformations by X-ray Solution Scattering

    Author : Alexandr Nasedkin; Jan Davidsson; Pau Bernado; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In the present work the refinement of X-ray data have been used to solve different scientific problems, namely drug localization in the liposome wall, reaction kinetics of the small molecule upon excitation and resolving an ensemble of protein structures at different temperatures. The common approach included collection of X-ray scattering patterns, modelling of the system of interest in atomic level and fitting computed results to experimental data. READ MORE