Sökning: "cubic samples"

Visar resultat 1 - 5 av 34 avhandlingar innehållade orden cubic samples.

  1. 1. Static and time-dependent mechanical behaviour of preserved archaeological wood : Case studies of the seventeenth century warship Vasa

    Författare :Alexey Vorobyev; Kristofer Gamstedt; Eiichi Obataya; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; archaeological wood; compression test; cubic samples; elastic constants; oak wood; barrelling formation; quasi-static loading; resonant ultrasound spectroscopy RUS ; Vasa ship; creep; 3D laser scanning; Time-dependent behaviour;

    Sammanfattning : Wooden objects have been widely used in the history of humanity and play an important role in our cultural heritage. The preservation of such objects is of great importance and can be a challenging task. This thesis investigates the static and time-dependent mechanical behaviour of archaeological oak wood from the Vasa warship. LÄS MER

  3. 2. Distance Functions and Image Processing on Point-Lattices : with focus on the 3D face- and body-centered cubic grids

    Författare :Robin Strand; Gunilla Borgefors; Stina Svensson; Christer Kiselman; David Coeurjolly; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computerized image analysis; digital geometry; distance functions; non-standard grids; point-lattices; Image analysis; Bildanalys;

    Sammanfattning : There are many imaging techniques that generate three-dimensional volume images today. With higher precision in the image acquisition equipment, storing and processing these images require increasing amount of data processing capacity. Traditionally, three-dimensional images are represented by cubic (or cuboid) picture elements on a cubic grid. LÄS MER

  4. 3. Advancing tissue clearing and expansion methods for high-resolution volumetric imaging of biological samples

    Författare :Steven Edwards; Hjalmar Brismar; Etsuo Susaki; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biologisk fysik; Biological Physics;

    Sammanfattning : The development of advanced light microscopes, capable of imaging samples at ever-higher spatial resolution and increasing speeds is an ongoing endeavour. The sample itself is an integral part of the microscope and, unlike the intricately positioned and highly polished lenses, it is an optically unpredictable component. LÄS MER

  5. 4. Lipid based formulations for topical application: characterization and delivery of active substances

    Författare :Johanna Bender; Chalmers tekniska högskola; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; bicontinuous cubic phase; phytantriol; passive diffusion; bicontinuous sponge phase; stratum corneum; W O microemulsion; monoolein; medium chain triglycerides;

    Sammanfattning : In this thesis, the interaction between lipids, solvents and active substances in lipid based formulations have been studied and related to formulation structure or release behavior on human skin or a model thereof. For the different investigations, isotropic equilibrium lipid phases, i.e. LÄS MER

  7. 5. Aberration-Corrected Analytical Electron Microscopy of Transition Metal Nitride and Silicon Nitride Multilayers

    Författare :Amie Fallqvist; Per Persson; Lars Hultman; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Two multilayer thin films have been studied: TiN/SiNx and ZrN/SiNx. A double-corrected transmission electron microscope (TEM) was utilized for imaging and spectroscopy. Imaging was carried out in scanning mode (STEM) for all samples. LÄS MER