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1986
Doctoral thesis. The mineralogy and mineral chemistry of three suites of previously undocumented ultramafic xenoliths from BC. and western Alaska were studied. An experimental study of the dissolution of the upper mantle minerals in an alkali basin melt to pressures of 30 kilobars is also...
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Fall 2013
Dengue virus infections can result in a range of clinical manifestations from asymptomatic infection to dengue fever and the severe disease dengue haemorrhagic fever/dengue shock syndrome. The disease is now endemic in more than 100 countries in Africa, the Americas, the eastern Mediterranean,...
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Fall 2011
Positronium consists of an electron and positron in a bound state, a purely leptonic system and therefore an excellent test of QED (quantum electrodynamics). The ground state is characterized by two different spin configurations: spin-singlet and spin-triplet states. The difference between the...
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Ultrasonic Characterization of Bitumen with Pressure and Temperature: Implications for seismic monitoring of the Grosmont Formation
DownloadFall 2018
The vastly untapped carbonate Grosmont Formation in north-eastern Alberta may hold in excess of a couple of hundred billion barrels initial volume of bitumen in place. Bitumen, an ultra-heavy hydrocarbon oil, possesses a density comparable to water, but a dynamic shear viscosity million times...
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Spring 2015
Traditionally in pipeline steels and welds, ultrasonic testing (UT) has been used for crack and/or flaw detection. The work presented in this Thesis explores the use of this technique to characterize the microstructure of pipe steels. Ultrasonic velocity calculations, for shear and longitudinal...