Global ETD Search
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 7 of 7 for “"dental X-ray"”.
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Studies on neutron diffraction and X-ray radiography for material inspection
… of the bio and structural materials, X-ray and neutron are widely used because of their distinctive usefulness in investigating different structures. X-ray radiography and neutron diffraction are two widely known non-destructive techniques for material inspection. Here we demonstrate the …
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Long and short term effects of X-rays on charge coupled devices
… with respect to their response to 70kVp X-rays. Process variations considered are the conventional BCCD, scintillator coated BCCDs ( (Gadox(Eu) and Csl(Tl)) and the inversion mode device. The work was made necessary by the use of these CCDs for dental X-ray imaging. Effects investigated …
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Effect of Surface Moisture Condition on Substrate-Repair Concrete Overlay Transition Zone
… in nature. In recent years, transmission X-ray microscopy (TXM) has been employed to non-destructively track diffusion and develop diffusion coefficients. The work presented in this thesis surrounds the efforts of incorporating TXM experiments at Virginia Tech. This work initially utilized a …
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A photon counting pixel detector for x-ray imaging
… of the requirements of medical imaging on X-ray sensors is described, and the properties of film and CCDs are discussed. The work of the RD19 collaboration is introduced to show the evolution of these devices. Chapter 2 presents the basic semiconductor theory required to understand the …
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A drug-free theranostic approach for localized and systemic diseases via nanoparticles
… this thesis to work out the localized diseases (dental biofilm, bone microdamage) and systemic diseases problems. At first, I applied strategies from materials science to modify the chemical properties of the carbon dots and worked towards the improvement of their interaction with the cells/ …
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Automated Teeth Extraction and Dental Caries Detection in Panoramic X-ray
Dental caries is one of the most chronic diseases that involves the majority of people at least once during their lifetime. This expensive disease accounts for 5-10% of the healthcare budget in developing countries. Caries lesions appear as the result of dental biofi lm metabolic activity, caused …
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Effective Modeling in Medical Imaging with Constrained Data
… COVID-19 severity risk assessment, cross-modal X-ray image and report retrieval, X-ray finding report generation from an image, orthopantomogram finding summarization and real-world federated learning benchmarking. In disease risk stratification applications, we develop an end-to-end body …