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 34 for “"Microscopy, Electron"”.
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Transformation Behavior of a Titanium(50)nickel(47)iron(3) Alloy
… has been studied by transmission electron microscopy, electron diffraction, and electrical resistivity measurements in the temperature range between room temperature and liquid nitrogen temperature. Based
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Lithium niobate thin films on diamond substrates for SAW devices
… such as Bragg X-ray diffraction, scanning electron microscopy, atomic force microscopy, electron microprobe, and Raman spectroscopy to determine their crystal structure, surface morphology and composition distribution. With the use of a lift-off photolithography planar process, surface …
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Metallurgical characterization of self catalytic structural materials for sulfuric acid decomposition
… cast and wrought conditions with optical and SE microscopy, electron dispersive spectrometry, chemical composition analysis, and thermodynamic modeling. Materials have been characterized according to grain size and morphology, precipitate features, twinning characteristics, and platinum …
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Reguläre bakterielle Zellhüllenproteine als biomolekulares Templat
… investigations by means of transmission electron microscopy, electron holography, scanning force microscopy, image analysis, and image processing. Preferred cluster-deposition sites are determined by correlation averaging. A more precise determination and quantification is obtained by …
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Investigation of Shocked Basalts from Vargeão Dome and Vista Alegre: Implications for the Search for Life on Mars
… appears to result in greater porosity. Optical microscopy, electron microprobe analysis, and μXRD were used to investigate hydrothermal alteration in the Vista Alegre crater and differentiate between pre- and post-impact hydrothermalism. We confidently verify that shocked samples within the …
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The effect of manganese doping on the superconducting transition temperature and the upper critical field of tin-molybdenum-sulfide
… by x-ray powder diffractometry, optical microscopy. electron microscopy, and electron microprobe work. The transition temperature decreased slow1~ with increasing manganese content until x=O.06. It then increased until x=O.10. after which it fell slow1~ again. Manganese would norma11y …
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On the mechanism of carbon nanotube formation by means of catalytic chemical vapour deposition
… carbon nanotubes are analysed by atomic force microscopy, electron microscopy and Raman spectroscopy. The results indicate that good densities of high quality single-walled carbon nanotubes are produced by these techniques. Additionally, the effects of different catalyst support interactions …
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Intracellular Transport in Cancer Treatments: Carbon Nanohorns Conjugated to Quantum Dots and Chemotherapeutic Agents
… particles were characterized with transmission electron microscopy, electron dispersive spectroscopy and UV-VIS/FL spectroscopy. Their cellular uptake kinetics, uptake efficiencies, and intracellular distribution were determined in three malignant cell lines (breast – MDA-MB-231, bladder – …
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Probing complex ionic dynamics on the nanoscale via energy discovery platforms
… lateral devices that enable multiple in-situ microscopy, spectroscopy, and functional characterization techniques to be performed on a single set-up. They provide easy control of external conditions including temperature (25 °C – 200 °C), humidity (0% – 90% at 25 °C), ambient gas (air and …
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Structural and optical properties of phase transition cubic phase gallium nitride for photonic devices
… Structural characterizations, including scanning electron microscopy, electron backscatter diffraction, and transmission electron microscopy show excellent crystal uniformity and predictable phase transition behavior. Raman spectroscopy and cathodoluminescence show excellent phase purity and …
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Evaluation of fiber-matrix interfacial shear strength in fiber reinforced plastics
… in detail via a combination of polarized light microscopy, electron microscopy (SEM) and spectroscopy (XPS or ESCA) and mass spectroscopy (SIMS). When the single fiber specimens were unloaded, a residual birefringent zone was measured and correlated with composite properties, as well as with …
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DESIGN, FABRICATION AND CHARACTERIZATION OF EPITAXIAL AND NON-EPITAXIAL THERMO-PHOTOVOLTAIC CELLS
… analysis of the material using transmission electron microscopy, electron dispersive spectroscopy and secondary ion mass spectroscopy will be presented and correlated to electrical characterization results.
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Cubic phase gallium nitride photonics integrated on silicon(100) for next-generation solid state lighting
… characterization techniques including scanning electron microscopy, electron backscatter diffraction, and transmission electron microscopy. The carrier recombination properties are studied using photoluminescence, Raman spectroscopy, and cathodoluminescence. The cubic GaN synthesized using the …
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Fabrication and characterization of high surface area nickel-deposited graphite substrates
… surface condition including scanning electron microscopy, electron dispersive spectroscopy and cyclic voltammetry. The improved electrodeposition method led to nickel-coated graphite felt with a specific surface area of 620 cm2/cm 3 and a surface area density of 7500 cm2/g, achieving a …
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Measuring and predicting sealant adhesion
… the pure shear butt joint test methods. Scanning electron microscopy, electron spectroscopy for chemical analysis and atomic force microscopy were used to analyze the failure surfaces. The failure mode for silicone sealant on aluminum changes from near the aluminum oxide layer to cohesive in the …
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Physicochemical properties of the anion-modified surfaces of silver nanostructures
… highly regular polyhedral shapes by transmission electron microscopy. Electron diffraction techniques indicated that isolated Ag structures were composed of a single crystalline phase or were multiply-twinned, both having a lattice constant of 4.05 A;Adsorption of iodide and bromide ions on the …
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Carbon-13 magic angle spinning NMR studies of myelin membranes
… or brain location. Microtome stains and light microscopy, electron microscopy, thin layer chromatography and sodium dodecyl sulfate-polyacrylamide gel electrophoresis studies confirmed sample viability before and after NMR data acquisition. Human myelin and white matter chemical shift …
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Ihh Signaling and Muscle Forces are Required for Enthesis Development
… and at the nano-scale using transmission electron microscopy - electron energy loss spectroscopy. Mineralization of this tissue occured postnatally via endochondral ossification. We observed a constant and approximately linear increase in the mineral-to-collagen ratio at the mineralizing …
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Experimental Studies of Diesel Particle Filtration
… time and in unprecedented detail with scanning electron microscopy. Electron images from repeated filtration in the same wall sample indicated that the profile of a DPF pore entrance does not influence the location of initial particle deposition. Particles from the tail-end of a diesel burner …
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Microstructure and Hydrogen Induced Failure Mechanisms in Iron-Nickel Weldments
… and fracture morphology including optical microscopy, scanning electron microscopy, secondary ion mass spectrometry, transmission electron microscopy, electron backscatter diffraction, and energy dispersive x-ray spectroscopy. For both systems, the microstructure along the weld interface …
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