Browsing Science (Faculty of) by Title
Now showing items 1097-1116 of 3025
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Fate and Transport of Naphthenic Acids in Glacial Aquifers
(University of Waterloo, 2004)Naphthenic acids (NAs) are carboxylated alkanes and cycloalkanes concentrated in wastewater during oil sands processing. The general chemical formula is C{n}H{n+Z}O{2}, where n represents the number of carbon atoms and ... -
Fate and Transport of Synthetic DNA in Surface Water
(University of Waterloo, 2021-09-29)Unlike conventional salt or dye tracers, artificial/synthetic DNA hydrologic tracers are essentially non-toxic and several can be used simultaneously. These features have implications for DNA to be used to better understand ... -
Fate of Adsorbed U(VI) during Sulfidization of Lepidocrocite and Hematite
(American Chemical Society, 2017-02-21)The impact on U(VI) adsorbed to lepidocrocite (gamma-FeOOH) and hematite (alpha-Fe2O3) was assessed when exposed to aqueous sulfide (S(II)(aq)) at pH 8.0. With both minerals, competition between S(-II) and U(VI) for surface ... -
Fate of Chlorinated Compounds in a Sedimentary Fractured Rock Aquifer in South Central Wisconsin
(University of Waterloo, 2008-10-22)A study was carried out in a sedimentary fractured rock site located in south central Wisconsin, US, which was impacted by DNAPL releases estimated to occur in the 1950’s and 1960’s. The majority of the DNAPL has accumulated ... -
Fatigue related impairments in oculomotor control are prevented by caffeine
(Nature, 2016-05-25)Strenuous exercise can result in an inability of the central nervous system to drive skeletal muscle effectively, a phenomenon known as central fatigue. The impact of central fatigue on the oculomotor system is currently ... -
Feasibility of Injecting Large Volumes of CO2 into Aquifers
(Elsevier, 2009-02)Although it is recognized that deep aquifers offer a very large potential storage capacity for CO2 sequestration it is not clear how to fill the storage with a large volume of CO2 in a relatively short period of time. The ... -
Feasibility of Testing the Event Formalism with Refractive Materials
(University of Waterloo, 2022-05-20)In this thesis, we evaluate the feasibility of verifying the effect of gravity on the quantum entanglement by simulating gravity’s effects with other physical systems. Specifically, we work in the framework of the Event ... -
Femtosecond Laser Induced Polyyne Formation
(University of Waterloo, 2010-10-01)Polyyne molecules were produced as a result of the femtosecond laser irradiation of liquid acetone (CH3)2CO and alkane molecules hexane C6H14 and octane C8H18 using 800 nm, 100 fs duration pulses. These polyynes have ... -
Femtosecond Time-Resolved Studies on the Reaction Pathways for the Generation of Reactive Oxygen Species in Photodynamic Therapy by Indocyanine Green
(University of Waterloo, 2008-09-12)Photodynamic therapy (PDT), which utilizes the combination of light and a photosensitizing drug to cause tissue damages, has emerged as a novel clinical approach for the treatment of numerous cancers, as well as some other ... -
Few Hole Quantum Dots in a Gated GaAs/AlGaAs Heterostructure
(University of Waterloo, 2019-06-24)This thesis presents a set of experiments that explore gate de ned hole quantum dots in the GaAs/AlGaAs heterostructure. These experiments explore the evolution of the quantum states of holes in a double quantum dot. The ... -
Few-Cycle Laser Pulse Generation and Characterization for Coulomb Explosion Imaging of Molecules
(University of Waterloo, 2020-01-22)Ultrashort pulses can induce coulomb explosions of molecules through which ionic fragments receive substantial momentum. These momenta, measured in coincidence, carry information about the molecule's initial geometry. ... -
A Feynman Path Centroid Effective Potential Approach for the Study of Low Temperature Parahydrogen Clusters and Droplets
(University of Waterloo, 2012-08-20)The quantum simulation of large molecular systems is a formidable task. We explore the use of effective potentials based on the Feynman path centroid variable in order to simulate large quantum clusters at a reduced ... -
Fiber Birefringence Modeling for Polarization Mode Dispersion
(University of Waterloo, 2007-01-17)This thesis concerns polarization mode dispersion (PMD) in optical fiber communications. Specifically, we study fiber birefringence, PMD stochastic properties, PMD mitigation and the interaction of fiber birefringence ... -
Field Analysis of Total PCBs in Soils by Thermal Desorption/GC and Determination of the Individual PCB Congeners by GC X GC - TOF-MS
(University of Waterloo, 2009-01-19)Environmental field analysis provides advantages that allow real-time decisions, interactive sampling and cost effective solutions to the problems faced at the time of investigation. Gas chromatography (GC), a widespread ... -
Field Application of Plant Growth Promoting Rhizobacteria Enhanced Phytoremediation on an Urban Brownfield and the Derivation of Direct Soil Contact Values for Weathered Petroleum Hydrocarbons (Fraction 3)
(University of Waterloo, 2019-05-13)There are over 30,000 contaminated brownfield sites in Canada, many of which are located in desirable urban areas; and therefore have a high value for potential redevelopment. The remediation of urban brownfield sites ... -
Field derived phosphorus accumulation rates and fractionation in bioretention cells
(University of Waterloo, 2022-09-23)Bioretention cells are commonly used green infrastructure in urban stormwater management systems. They show promising performance in managing stormwater and mitigating a multitude of pollutants. In urban catchments, they ... -
A field study of event based, seasonally affected, depression focused recharge in glaciated terrain
(University of Waterloo, 2019-04-26)To observe the dynamics of depression focused recharge (DFR) and the effects of seasonality related to transient surface water features, a field scale experiment was designed and conducted within glacial terrain in southern ... -
Field Trial of Residual LNAPL Recovery Using CO2-Supersaturated Water Injection in the Borden Aquifer
(University of Waterloo, 2007-01-24)The ability of supersaturated water injection (SWI) to recover non-aqueous phase liquids (NAPLs) was studied at the field scale as part of an ongoing program to evaluate its applicability to groundwater remediation. SWI ... -
Field-Free Alignment and Strong Field Control of Molecular Rotors
(University of Waterloo, 2004)Methods of controlling molecular rotations using linearly polarized femtosecond and picosecond pulses are considered and analyzed theoretically. These laser pulses, typically in the infrared, are highly non-resonant ... -
Field-Orientation Coupling Effects in Nematic Liquid Crystal Cells
(University of Waterloo, 2019-10-23)Using the continuum Landau-de Gennes model for the nematic liquid crystal (NLC) phase, we study the equilibrium behaviour of nematic cells, accounting for the coupling between external fields and nematic order. This is ...