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 20 of 26 for “"High Magnification"”.
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High-Magnification Digital Staining of FTIR Spectroscopic Images
… staining techniques that can be applied to high-magnification samples collected using Fourier-transform infrared (FTIR) and discrete-frequency infrared (DFIR) images.
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Near wall high resolution particle image velocimetry and data reconstruction for high speed flows
… Image Velocimetry (TRDPIV) for measuring high speed, high magnification, near wall flow fields. Previous attempts to perform measurements such as this have been unsuccessful because of both limitations in equipment as well as proper methodology for processing of the data. This work …
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Drift correction for scanning-electron microscopy
Scanning electron micrographs at high magnification (100,000x and up) are distorted by motion of the sample during image acquisition, a phenomenon called drift. We propose a method for correcting drift distortion in images obtained on scanning electron and other scanned-beam microscopes by …
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Boiling on hierarchical nanoengineered surfaces
… limitations of boiling. Here, we developed a highly scalable, three-tier hierarchical surface deposition technique to investigate the pool boiling heat transfer performance with focus on the bubble departure diameter and frequency. Ultrahigh critical heat fluxes (CHF) greater than 400 W/cm2 …
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Studies of Atmospheric Pollution due to Lead in the Vicinity of Urban Motorways
… filter papers, some of which were observed under high magnification by an electron microscope. This, coupled with x-ray energy spectrometry, has enabled titanium, vanadium, zinc, and lead-rich particles to be identifiable by their size and shape.
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Tomographic reconstruction of the morphology of silicon nanoparticleclusters
… clusters are studied using conventional TEM, high resolution TEM and transmission electron tomography techniques. TEM and TEM based tomography provide the means to determine the size and morphology of primary particles and clusters, while the structure of printed macroscopic layers has …
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Ovalbumin-Based Scaffolds Reinforced with Cellulose Nanocrystals for Bone Tissue Engineering
… the pore compared to pure OVA scaffolds. Under high magnification, the CNCs were incorporated into the pore walls, providing a contoured surface. AFM was applied to analyze the topography of OVA with CNCs present. The surfaces laden with CNCs had a higher mean surface roughness, but was …
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Experimental and numerical investigation of cavitation erosion damage in FRP composites
… industries is constantly growing due to their high strength and stiffness, low weight and relatively easy manufacturing. In some applications, FRP composites can be exposed to cavitation erosion. This work presents an experimental and numerical investigation into the behaviour of glass and …
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From clay slurries to mudrocks : a cryo-SEM investigation of the development of the porosity and microstructure
… prepare the slurry samples for cryo-SEM imaging: high-pressure freezing and plunge freezing. The microstructure of high-pressure frozen clay slurries consists of individual clay particles and clay aggregates randomly distributed in water. These results demonstrate that one of the widely accepted …
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An Archaeobotanical Contribution to Foodways, Wood Collecting Strategies, and Niche Construction at the Late and Terminal Archaic Site of Côte Rouge in Southern Québec
… observation of a selection of stone tools under high magnification revealed the presence of a few starch grains and brown and red residues thought to be resin and/or birch bark pitch.
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Characterizing the tensile behavior of additively manufactured Ti-6Al-4V using multiscale digital image correlation
… the micro-scale deformation behavior. A low magnification in-situ DIC study (referred to as the macro-scale study) was performed during tension experiments to assess the bulk properties of most specimens while the specimens were loaded, and a high magnification ex-situ DIC study (referred to …
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Contributions and New Methods in Paleontology: Geochemical, Ultrastructural, and Microstructural Characterization of Archean, Proterozoic, and Phanerozoic Fossils
… field emission scanning electron microscopy for high-resolution, high magnification imaging and quantitative evaluation of an entire fossil assemblage–from acritarchs and algal fossils to the earliest metazoan embryos. This study was conducted in an effort to examine and describe the …
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Applications of Computer Vision Technologies of Automated Crack Detection and Quantification for the Inspection of Civil Infrastructure Systems
… good maintenance of civil infrastructure with a high quality of safety and serviceability, but also for the opportunity to provide early warning against failure. Conventional human visual inspection is still considered as the primary inspection method. However, it is well established that human …
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Controlled electrodeposition of metal nanocentres for catalysis
… waves lead to the deposition of platinum(0). At high overpotential, the reaction becomes diffusion controlled. No dissolution of platinum is observed on the reverse scan. In contrast, the reduction of hydrogen tetrachloroaurate(III) hydrate in acidic media produces a simple mass transfer …
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Tear film structure of the contact lens wearer
… lenses. The techniques are as follows: 1. A high magnification technique of photography using the biamtcroscope and crossed polartsed light, allows the measurement of tear film layer thicknesses and on the surface of rigid contact lenses and invivo receding contact angle'. 2. A low …
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Pancreatic peptide hormone expression in the RINm5F cell line
… labelled cells could only be identified at high magnification in fluorescent-stained preparations. Thus flow cytometry successfully provided an alternative approach to accurately quantify insulin expression in RINm5F-MRC cells. Flow cytometry, immunoblotting and immunocytochemistry …
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Goggle Augmented Imaging and Navigation System for Fluorescence-Guided Surgery
… while blue dye tracking stains the tissue highlighting only superficial lymph nodes. Improper identification of sentinel lymph nodes may misdiagnose the stage of the cancer. Therefore there is a clinical need for accurate intraoperative tumor and sentinel lymph node visualization.</p> …
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A parametric investigation on the influence and inhibition performance on CO2 corrosion of carbon steel
… the solubility of mineral salts and causing a higher risk of corrosion problem. The goal of this investigation is to determine the combined effect of acetic acid and mono-ethylene glycol on corrosion of carbon steel in CO2 saturated environment at three different temperatures of 25oC, 50oC and …
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Self-reporting of Mn ion dissolution and self-stabilization of cathode-electrolyte interface in lithium ion batteries
… material for lithium-ion batteries due to its high operating voltage, high thermal stability, environmental friendliness, and low cost. One of the most significant issues limiting its performance is the dissolution of Mn, which leads to the loss of active components from the cathode, as well as …
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Geology and petrography of the Wellington Seam, Nanaimo Coalfield, Vancouver Island
… mudstones was determined by point-counting at high magnification under incident light in immersion oil. Moisture and ash content, and free swelling index were determined for the coals and mudstones. Seven formations and nine members, comprising the basal half of the Upper Cretaceous Nanaimo …
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