Browsing Science (Faculty of) by Title
Now showing items 725-744 of 3011
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Diagenesis of middle Ordovician rocks from the Lake Simcoe area, south-central Ontario
(University of Waterloo, 2011-09-30)Middle Ordovician carbonates in the Lake Simcoe area, south-central Ontario were examined to determine if: (1) The δ18O values of early-stage calcite cement in hardgrounds are useful proxies for Ordovician seawater δ18O ... -
Diagenetic history and reservoir properties of the Cenomanian-Turonian carbonates in southwestern Iran and the Persian Gulf
(Elsevier, 2017-12-01)Shallow-marine carbonates of the mid-Cretaceous Sarvak Formation are important reservoir rocks in southern Iran and the Persian Gulf region. These carbonates were deposited on the margin of the Arabian Plate and rest on ... -
A diagnostic approach to constraining flow partitioning in hydrologic models using a multiobjective optimization framework
(American Geophysical Union, 2017-04-21)Hydrologic models are often tasked with replicating historical hydrographs but may do so without accurately reproducing the internal hydrological functioning of the watershed, including the flow partitioning, which is ... -
Diavik Waste Rock Project: Geochemical and mineralogical investigations of waste-rock weathering
(University of Waterloo, 2012-12-05)The oxidation of sulfide minerals in mine waste rock has the potential to generate acidity and contribute sulfate, metals and other trace constituents to drainage. The rate and extent to which this process occurs are ... -
Dielectric Measurement and Analysis of Ultrastable PMMA Glass
(University of Waterloo, 2022-02-09)A stable glass, distinguished from an ordinary glass, has phenomenal characteristics such as a high density and a high kinetic stability. In this project, stable glasses of poly(methyl methacrylate) (PMMA) are produced ... -
A differential role for the posterior cerebellum in the adaptive control of convergence eye movements
(Elsevier, 2020-02)Introduction The vergence oculomotor system possesses two robust adaptive mechanisms; a fast “dynamic” and a slow “tonic” system that are both vital for single, clear and comfortable binocular vision. The neural substrates ... -
DiPyMe in SDS Micelles: Artifacts and Their Implications in the Interpretation of Micellar Properties
(American Chemical Society, 2015-11-10)This study provides experimental evidence that di(1-pyrenylmethyl) ether or DiPyMe, a well-known fluorescent probe employed to determine the microviscosity of surfactant or polymeric micelles, is being hydrolyzed in the ... -
Direct coupling of solid phase microextraction with electrospray ionization mass spectrometry: A Case study for detection of ketamine in urine
(Elsevier, 2019-10-10)Electrospray ionization mass spectrometry (ESI-MS) is a commonly used technique for analysis of various samples. Solid phase microextraction (SPME) is a simple and efficient technique that combines both sampling and sample ... -
Direct Fitting of Analytical Potential Functions to Diatomic Molecular Spectroscopic Data
(University of Waterloo, 2000)The standard practice of spectroscopic data reduction is generally to fit data to level energy expansions in terms of the vibrational and rotational quantum numbers. However, the utility of such expressions is limited ... -
Direct generation of three-photon entanglement using cascaded downconversion
(University of Waterloo, 2013-12-06)High quality entangled photon sources are a key requirement for many promising quantum optical technologies. However, the production of multi-photon entangled states with good fidelity is challenging. Current sources of ... -
Direct immersion solid-phase microextraction analysis of multi-class contaminants in edible seaweeds by gas chromatography-mass spectrometry
(Elsevier, 2018-11-15)The present work aimed at the development of a simple and accurate direct immersion-solidphase microextraction-gas-chromatography-mass spectrometry (DI-SPME-GC-MS) method for simultaneous determination of PAHs, PCBs, and ... -
Direct Observations of Scavenging Reactions of the Prehydrated Electron and OH Radicals by Femtosecond Time-Resolved Laser Spectroscopy
(University of Waterloo, 2011-09-02)Radiotherapy is the major curative therapy for carcinogesis. Identifying the effective species that induce DNA damage under ionizing radiation holds the key to improve and advance radiotherapy. In a cellular environment, ... -
Discovering new viral lineages and estimating their abundance in wastewater
(University of Waterloo, 2022-09-27)Wastewater surveillance of SARS-CoV-2 has emerged as a critical tool for tracking the spread of COVID-19. In addition to estimating the relative case numbers using qPCR, SARS-CoV-2 genomic RNA can be extracted from wastewater ... -
Discrete-Time Quantum Walk - Dynamics and Applications
(University of Waterloo, 2010-01-25)This dissertation presents investigations on dynamics of discrete-time quantum walk and some of its applications. Quantum walks has been exploited as an useful tool for quantum algorithms in quantum computing. Beyond quantum ... -
Disorder, Geometric Frustration and the Dipolar Interaction in Rare-Earth Magnets
(University of Waterloo, 2010-08-30)This thesis will present research that studies the role of disorder, geometric frustration and the long range dipolar interaction on the collective behaviour of several insulating, rare earth magnets. Experiments were ... -
Dispersion of a Fluid Plume During Radial Injection in an Aquifer
(AIP, 2022-02)This study outlines a model for radial injected fluid flow with mechanical dispersion in a vertically confined porous aquifer. Existing studies have investigated fully segregated fluid flow in this setting, where the ... -
Dispersion-cancelled imaging with chirped laser pulses
(University of Waterloo, 2013-06-20)This thesis deals with chirped-pulse interferometry, an interferometric imaging technique with a resolution which is unaffected by the normally detrimental effects of sample dispersion. The thesis begins with some important ... -
Dissecting Colloidal Stabilization Factors in Crowded Polymer Solutions by Forming Self-Assembled Monolayers on Gold Nanoparticles
(American Chemical Society, 2013-05-21)An ideal colloidal system should be highly stable in a diverse range of buffer conditions while still retaining its surface accessibility. We recently reported that dispersing citrate-capped gold nanoparticles (AuNPs) in ... -
Dissecting the effect of anions on Hg2+ detection using a FRET based DNA probe
(Royal Society of Chemistry, 2012-08-07)Many biosensors have been developed to detect Hg2+ using thymine-rich DNA. While sensor response to various cations is often studied to demonstrate selectivity, the effect of anions has been largely overlooked. Anions may ... -
Dissociation and Degradation of Thiol-Modified DNA on Gold Nanoparticles in Aqueous and Organic Solvents
(American Chemical Society, 2011-05-17)Gold nanoparticles functionalized with thiol-modified DNA have been widely used in making various nanostructures, colorimetric biosensors, and drug delivery vehicles. Over the past 15 years, significant progress has been ...