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Skip to Search Results- 50Graduate and Postdoctoral Studies (GPS), Faculty of
- 50Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 24Earth and Atmospheric Sciences, Department of
- 16Earth and Atmospheric Sciences, Department of/Journal Articles (Earth and Atmospheric Sciences)
- 8Earth and Atmospheric Sciences, Department of/Research Materials (Earth and Atmospheric Sciences)
- 2Biological Sciences, Department of
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1998-01-01
Mitambo, Mitambo M., Zhang, Shuliang L., Loppnow, Glen R.
A novel four nuclear magnetic resonance (NMR)-tube holder is described for quantitative Raman and resonance Raman spectroscopy. This cell has advantages over other divided cell designs in producing high precision quantitation and eliminating off-axis errors. Raman spectra were obtained for both...
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Spring 2017
Fluxgate magnetometers are an essential tool for solar-terrestrial research and monitoring or forecasting space weather. They provide high precision measurements of the Earth’s magnetic fields and can be used to infer the currents that transport energy and momentum through the magnetosphere and...
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An Investigation of Using n-Si Piezoresistive Behavior to Develop a Three-Dimensional Stress Sensing Rosette
DownloadFall 2013
This work involves the design, microfabrication, calibration, and testing of a new silicon-based piezoresistive rosette capable of extracting the three-dimensional (3D) stresses in the silicon upon deformation. A new 10-element piezoresistive rosette was devised to extract all stress components...
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Applications of nonautonomous infinite-dimensional systems control theory for parabolic PDEs
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Parabolic partial differential equations (PDEs) are used as models of transport-reaction phenomena in a variety of different industrial chemical and materials engineering processes, and can yield precise descriptions of process variables with complex temporal and spatially dependent system...
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2022-01-01
Barbedo, Lucas, Belanger, Simon, Lukovich, Jennifer V., Myers, Paul G., Tremblay, Jean-Eric
Pulses of ocean primary productivity during the fall season are frequent in the mid-latitudes when ocean cooling and wind-driven turbulence erode the surface stratification and allow the injection of nutrients into the euphotic zone. This phenomenon is often referred to as a phytoplankton fall...
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Spring 2014
Consider an open control volume consisting of a porous medium submerged in a surrounding ambient fluid of density ρa. The top and bottom of the control volume allow ambient fluid to enter the porous medium. Saline fluid of density ρs>ρa is supplied at a constant rate of Qo near the top of the...
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Fall 2009
Intuition has fallen from grace. Its authority to act as a source of evidence in philosophical discourse has recently been called into question by philosophers and cognitive psychologists alike, who claim that because of the many difficulties that plague intuition, it should not hold the...
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Calibration and Validation of a SWAT model for the quantification of water provision ecosystem service for the Conservation Area of Guanacaste
DownloadFall 2021
Water is considered a cross-cutting resource for all the ecosystem services (ES) types, namely: for the provision of drinking water and food; regulation through flood control; guarantee of a suitable habitat for fauna and flora; and inspiration for many cultures and their intangible heritage...
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Characterization and Control of Cyclic Variability in a Gasoline/Natural Gas Dual-Injection Spark Ignition Engine
DownloadSpring 2016
Reducing the cyclic variability of a gasoline/natural gas dual injection spark ignition engine using minimum variance control is the subject of this thesis. Cylinder pressure is used to calculate four combustion metrics, the standard deviation of which is used as an indicator of cyclic...
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Children’s and Fathers’ Perceptions of Fathers’ Use of Structure, Negative Control, and Autonomy Support
DownloadSpring 2017
The current study investigated fathers’ and children’s perspectives of fathers’ use of structure, negative control, and autonomy support parenting behaviours in relation to children’s internalizing, externalizing, and adaptive behaviours, and father-child attachment. Researchers interviewed 55...