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Fall 2024
The turbulent structures of Taylor-Couette (T-C) flow of a Polyacrylamide (PAM) solution (200 and 400 ppm) is experimentally investigated and compared with the same flow with water at Re = 1.50 × 104, to understand the effect of nonlinear shear-thinning viscosity on the flow regime, in terms of...
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Fall 2022
The flow structure in turbulent Taylor vortex flow (TTV) was investigated in Newtonian and shear-thinning fluids. The radius ratio of the investigated case is η=0.76, and the aspect ratio of the experimental setup is 10.32. First, detailed velocity measurements of the time-averaged azimuthal and...
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Turning a Liability into an Asset: Re-purposing Inactive Petroleum Wells for Geothermal Energy Production
DownloadSpring 2021
There are over 600,000 registered oil and gas wells in the province of Alberta, many of these are inactive wells that do not produce resource yet do present a significant environmental risk and financial liability in cleanup costs. There are no regulations stipulating the maximum length of time a...
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Two and three dimensional cephalometric assessment of dental and skeletal changes following orthodontic treatment with Damon passive self-ligating system
DownloadSpring 2010
Objectives: The aim of this study was to evaluate dental and/or skeletal changes following orthodontic treatment with Damon self-ligating (SL) brackets in non-extraction patients. Methods: Frontal and lateral cephalomteric radiographs of 20 patients before and after non-extraction treatment with...