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Spring 2018
This thesis explores the effect of fluid substitution, pore-pressure diffusion and stresses due to hydraulic fracturing on the elastic velocities and microcrack orientations in the surrounding rock. I develop a workflow incorporating three main components to model the velocity field around the...
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Spring 2014
Sedimentary rocks are an important research topic since such rocks are associated to sources of ground water as well as oil, gas, and mineral reservoirs. In this work, elastic and physical properties of a variety of sedimentary samples that include glacial sediments, carbonates, shales, one...
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Spring 2013
Research was undertaken into the organic semiconductors tris(8- hydroxyquinoline)aluminum (Alq3) as well as bis(8-hydroxyquinoline)zinc (Znq2) to the effect of improving achievable morphological control using an inexpensive evaporation based solution synthesis method. By varying experimental...
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Fall 2014
In this thesis, a new technique named vapour-liquid-solid glancing angle deposition (VLS-GLAD) will be used to enhance structural control over branched nanowire (NW) arrays. NWs are 1D crystals that have been extensively applied in sensors, photovoltaic devices, and transistors. The functional...
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Spring 2010
Many geological deposits contain nonlinear anisotropic features such as veins, channels, folds or local changes in orientation; numerical property modeling must account for these features to be reliable and predictive. This work incorporates locally varying anisotropy into inverse distance...
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High Performance Germanium-based Anode Materials for Lithium-ion and Sodium-ion Rechargeable Batteries
DownloadFall 2014
In this thesis the electrochemical performance of germanium nanowires (GeNWs) as anode for lithium-ion batteries (LIBs) and tin-germanium-antimony (Sn-Ge-Sb) thin films as anode for sodium-ion batteries (NIBs) have been investigated. Scientific literature shows a substantial study-to-study...
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Highly Ordered Methanofullerene Nanotube Array: Fabrication and Implications for Room Temperature Organic Spintronics
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Organic semiconductors have come to the forefront of research in physics, chemistry and electronics due to their impressive properties and low cost of device production. Presented here is a novel centrifuge assisted organic nanowire growth technique and its application in the fabrication of...
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Fall 2014
Considering nonstationary features in geostatistical modeling is important. Recent developments in nonlinear estimation provide a practical way to infuse geological realism into numerical modeling by incorporating complex spatial features. Second order nonstationarity when present must be...
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Fall 2019
The impact of geomechanical behavior in the SAGD process has received increased attention over the last decade because of its importance in assessing caprock integrity and potential influence on production performance. The deformations and potential shear failures in the reservoir lead to...
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Intrinsic Disorder Effects and Persistent Current Studies of YBCO Thin Films and Superconducting Tunnel Junctions
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This thesis studies the intrinsic disorder effects and the transport and magnetic properties of ring-shaped epitaxial thin films and superconducting tunnel junctions (STJs) of the high temperature superconductor YBa$2$Cu$3$O${7-\delta}$. We used an unconventional contactless technique that allows...