Sökning: "Micro computed tomography"

Visar resultat 1 - 5 av 19 uppsatser innehållade orden Micro computed tomography.

1. 1. Volumetric Image Segmentation of Lizard Brains

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Yulia Dragunova; [2023]
   Nyckelord :image segmentation; deep learning; atlas; lizard brain; micro-CT; image augmentation; bild segmentering; djupinlärning; atlas; ödelhjärna; mikro-datortomagrofi; datautökning;

   Sammanfattning : Accurate measurement brain region volumes are important in studying brain plasticity, which brings insight into the fundamental mechanisms in animal, memory, cognitive, and behavior research. The traditional methods of brain volume measurements are ellipsoid or histology. LÄS MER

3. 2. Development of Advanced X-ray Micro-Tomography Helical Scan andTomographic Data Processing

   Master-uppsats, Högskolan i Gävle/Avdelningen för elektroteknik, matematik och naturvetenskap

   Författare :Yoseph Abraham; [2023]
   Nyckelord :;

   Sammanfattning : Micro-computed tomography (Micro-CT) is an imaging technique that allows for high-resolution,three-dimensional (3D) internal visualization of small objects in a non-destructive manner. However,a significant limitation arises when attempting to image elongated samples at higher resolutions andmagnifications due to the inherently small field of view (FOV). LÄS MER

4. 3. Micro-CT based finite element models for mechanical strength assessment of glass ceramic scaffolds obtained through the robocasting technique

   Master-uppsats, KTH/Hållfasthetslära

   Författare :Gustav Thessén; [2022]
   Nyckelord :µ-CT modelling; phase-field method; bio-glass scaffolds; strength assessment; Mikrotomografi; μ-CT; fasfältsmetoden; bio-glas stödstrukturer; brottgräns;

   Sammanfattning : In this thesis, micro computed tomography (μ−CT) scans of a bio-glass scaffold produced by the robocasting technique was used to create finite element method (FEM) models with the purpose of determining its mechanical strength. Prior to this, a Matlab script was used to create several simplified geometries of the scaffold in an effort to determine the importance of scaffold design parameters (such as the fiber compenetration between two adjacent printing planes) on the strength of the scaffold. LÄS MER

5. 4. Synchrotron X-ray Tomography Study of Bone-implant Integration

   Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

   Författare :Ornella Lohéac; [2021]
   Nyckelord :Bone-implant; Digital volume correlation; Micro-computed tomography; PEEK; Synchrotron; Technology and Engineering;

   Sammanfattning : Implant loosening is a recurring problem in the field of orthopedics, typically resulting in a physical and financial burden for the patient. Proper integration of orthopedic implants within host bones is a fundamental requirement for the successful function and limited risk of failure of implants which, in-vivo, must support various loading conditions. LÄS MER

7. 5. Information från insidan : En datortomografisk undersökning av gropkeramiska lerfiguriner från Tråsättra

   Kandidat-uppsats, Uppsala universitet/Institutionen för arkeologi och antik historia

   Författare :Claes Ericson; [2019]
   Nyckelord :computed tomography; ct; µCT; pitted ware culture; ceramic figurines; tråsättra; datortomografi; ct; dt; gropkeramik; lerfiguriner; keramik; figuriner; stenålder; neolitikum; tråsättra; gropkeramisk kultur; röntgen; 3d; visualisering; volymrendering; inklusioner;

   Sammanfattning : This thesis presents how a non-destructive method allows for analysis of archeological material, using three Neolithic anthropomorphic figurines attributed to the Pitted Ware Culture. Anthropomorphic figurines from this period are rare in Sweden and traditional destructive methods, such as thin section petrography is therefore not an option. LÄS MER