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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 147 for “"Micro CT"”.
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Compressed Sensing based Micro-CT Methods and Applications
High-resolution micro computed tomography (micro-CT) offers 3D image resolution of 1 um for non-destructive evaluation of various samples. However, the micro-CT performance is limited by several factors. Primarily, scan time is extremely long, and sample dimension is restricted by the x-ray beam …
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Morphological and Mechanical Quantification of Porous Structures by Means of Micro-CT (Morfologische en mechanische kwantificatie van poreuze structuren met behulp van micro-CT)
Suitable characterization techniques for porous structures are required to (i) understand and to be able to simulate, via finite elements (FE), the structure-properties relationships and (ii) understand the relationship between the morphology and mechanical behaviour on one hand, and the failure …
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Analysis of microstructure in human carpal bone using micro-CT
… 획득하여, 획득된 모든 시편은 미세단층촬영기에 의해서 촬영한다. 촬영된 미세영상은 CT Analyser 소프트웨어를 이용하여 월상골은 4.26 × 4.26 × 4.26 ㎜3 (200 voxels), 주상골은 2.13 × 2.13 × 2.13 ㎜3 (100 voxels) 그리고 삼각골은 4.26 × 4.26 × 4.26 ㎜3 (200 voxels)로 ROI를 설정하여 ANT 소프트웨어를 이용하여 3차원 형상을 재건하여 구조적 특징을 대변하는 형태학적 …
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CONICAL IMPLANT-ABUTMENT CONNECTIONS: A 3D MICRO-CT AND MICROBIOLOGICAL ANALYSIS
L'abstract è presente nell'allegato / the abstract is in the attachment
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Study on the development of the mouse ossicles using Micro-CT
… ossicles. In this study, three dimensional structural images of mouse were investigated through Micro-CT to understand developmental anatomy of its ossicles. Additionally, this study was performed to determine the three - dimensional(3-D) structure of the mouse temporal bone and to provide a …
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Geometry-based finite volume methods for modelling transport on micro-CT images
… has become increasingly popular for studying the microscopic structure of reservoir rocks. Direct numerical flow simulations are a common approach to compute petrophysical properties of rocks by modelling fluid flow on rock micro-Computed Tomography (CT) images. However, they are computationally …
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Anatomic investigation of the roots of second mandibular molars using micro CT.
… Detailed images of tooth anatomy using microcomputed tomography allow measurements of pulpal floor anatomy, canal configurations, canal dinemsions, root wall thickness, presence of calcifications, and apical anatomy. The aim of this study of eighteen mandibular second molars using micro …
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Finite element analysis of porcine trabecular bone based on micro-CT images
Made available in DSpace on 2015-07-22T22:46:09Z (GMT). No. of bitstreams: 2 JIN-THESIS-2015.PDF: 1428319 bytes, checksum: 90863a291e31979ea5abb92bf4aa2a16 (MD5) LICENSE.txt: 4205 bytes, checksum: 292729d61405bbb82bd379fc9a6f9b47 (MD5) Previous issue date: 2015-05-01
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Micro-CT and 3D imaging analysis and planning of minimally invasive endodontic procedures
L'abstract è presente nell'allegato / the abstract is in the attachment
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Micro-CT/PET Assessment of Lung Metastasis in a Mouse Model of Osteosarcoma
<b>Introduction/Purpose:</b> Osteosarcoma (OSA) is a common cancer of dogs comprising approximately 80 to 85% of all canine skeletal tumors (6% of all canine tumors), and is also the 8th most common childhood cancer. Detection of pulmonary metastasis as early as possible is vital, since the …
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From micro-CT TO A NURBS-based interface-enriched generalized finite element method
… or thermal response of materials and structures. In most cases, conforming meshes are used to discretize the simulated geometry. However, this traditional method is not efficient in the analysis of complex microstructures, since the shape of most microstructures is quite irregular. …
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Structure-property relations of porcine trabecular bone and micro-CT imaging of various materials
This thesis addresses the characterization of materials with a focus on trabecular bone. In the first part, we aim to find relations between morphological measures of trabecular bone and its Young’s modulus and ultimate compressive strength. Previous research has showed that apparent density and …
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Estimating Root Volumes by Limited Segmentation: A Volumetric Analysis of CBCT and Micro-CT Data
<p>Introduction: The increased dimensional accuracy of images provided by cone beam computed tomography (CBCT) scans allows for more in-depth diagnosis and treatment planning. Expedient interpolation of segmented data that provides clinically acceptable results will encourage clinicians to …
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Hybrid Spectral Micro-CT: System Implementation, Exposure Reduction, K-edge Imaging Optimization, and Content Management
Spectral computed tomography (CT) has proven an important development in biomedical imaging, yet there are several limitations to this nascent technology. Near-term implementation of spectral CT imaging can be enhanced using a hybrid architecture that integrates a narrow-beam spectral 'interior' …
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Utility of the Visible Heart® and Micro-CT Imaging to Optimize the Treatments of Bifurcation Stenting
… high resolution 3D models were obtained via micro-CT imaging, which then allows for post implant device/tissue interface analyses. Utilizing reanimated swine hearts, we were able to uniquely visualize how the various bifurcation techniques performed could be optimized in specific anatomies. …
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MICRO-CT EVALUATION OF MSC/HUVEC/HSC-MEDIATED ANGIOGENESIS IN LARGE PCL-ßTCP CONSTRUCTS IMPLANTED IN NUDE MICE
… are prerequisite for scaffold-guided reconstruction of large voluminous bony defects. However, induction of angiogenesis remains a major challenge for bone-tissue engineering. The present in vivo study evaluates human umbilical cord derived vascular endothelial cells (HUVEC) or hematopoietic …
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Peridynamic Investigation of Stress-Strain Response and Fracture Behavior Variations in Micro-CT Images of Mock Energetic Nanocomposites
The stress-strain response and fracture behaviors of a mock energetic nanocomposite were investigated to reveal behaviors that contribute to variations throughout the sample. Approximately 100 XCT images that span the depth of a single sample were modeled in a peridynamics formulation to …
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