Fabrication of LiYO2 Galvanic Cells to Determine the Thermodynamic Properties of Lithium Alloys
LiYO2 is a lithium ion conductor stable to pure lithium metal. The goal of the present work was to design and construct an electrochemical cell and demonstrate the use of LiYO2 as an electrolyte since this has never been previously done. The electrolyte was fabricated by slip casting in powder molds. A Y2O3-MgO composition was identified and used to fabricate a lid for the cell. Impervious ...
Nd Model Age Mapping of the Central Gneiss Belt In the western Grenville Province of Ontario, Canada.
Nd isotope analysis is well suited for mapping major tectonic boundaries in highly
metamorphosed orogenic belts. In this study, approximately 80 samples have been
analyzed to map 2 such boundaries in the Central Gneiss Belt of the Grenville Province
of Ontario. In Central Ontario, lithotectonic terranes with mapped outcrops of gneisses
intruded by eclogites and/or coronitic metagabbro h...
Experimental Determination of Beta Attenuation in Tooth Enamel Layers and its Implication in ESR Dating
The principal subject of this thesis is to experimentally determine the beta attenuation patterns in tooth enamel layers, and to examine the predictions of two theoretical models which are involved in the beta dose calculations of ESR dating. One of the models is based on empirical equations (Yokoyama, 1982) and employed by R.Grün (1986) in the DATA software of ESR dating, the other is base...
Controlling the Behaviour of Quartz Surfaces: Using Silane Coupling Agents to Minimize Surface Fouling
UV radiation disinfection technology is an advantageous method of wastewater
disinfection as it avoids the formation of chemical by-products typically found from
chlorination. One challenge with this technology is avoiding fouling on the quartz sleeves
in which the UV lamps are housed. In this study, using a model fouling system, the roles
in fouling of light, and the constitution of th...
The Preparation, Multinuclear Magnetic Resonance and Solid-State Investigation of Some Classically Bonded Anions of the Heavy Main-Group Elements Derived from Zintl Phases
The synthesis and X-ray crystallographic determination of solid derivatives of homo- and heteropolyatomic anions derived from Zintl phases has generally yielded the least soluble of the ions present in solution. Many other species present in these solutions have remained unidentified until recently when considerable effort directed towards the investigation of the solution chemistries of Zi...
Photochemistry and Thermolysis of the 1,1-Diphenylindene System
1,1-Diarylindenes rearrange when heated or irradiated to give 1,2- and 2,3-diarylindenes. Three 1,1-diarylindenes were synthesized and used in an attempt to probe the transition states for phenyl migration in both the ground and excited state. The three indenes synthesized were: 1-(p-bromophenyl)-1-phenylindene, 1-(p-cyanophenyl)-1-phenylindene and 1-(p-methoxyphenyl)-1-phenylindene.
The Preparation of Nucleoside-Functionalized Silicone and Oligonucleotide-Silicone Copolymers
Attempts to prepare silicone oligonucleotide copolymers are complicated by the large
difference in hydrophobicity in the two materials. Two approaches were followed to
overcome this challenge. Initially, highly sterically hindered tetraisopropyldisiloxanes
were used to bind 5'-0-(4,4'-dimethoxytrityl)-thyrnidine at the 5'-0H. These compounds
proved to be hydrolytically more stable than ...
The Statistical Analysis of Light Scattering Data for Polymer Characterization
The models derived from classical light scattering theory for predicting Rayleigh light scattering contain useful parameters such as polymer weight average molecular weight, z-average radius of gyration and virial coefficients. The methods used to estimate these model parameters have not been based on sound statistical principles. It is with improved statistical estimation methods for these...
Polyvinyl Alcohol as a Steric Stabilizer
An experimental study of the steric stabilizing ability of a water soluble polyvinyl alcohol (PVA) polymer is presented.
The free film thickness of a lamella formed between a drop of n-butylchloride and bulk n-butylchloride stabilized by PVA was measured by the Hodgson and Woods technique in order to evaluate the stabilizing ability of the polymer. A maximum in the stability was obs...
Low Valent Technetium Nitrosyl Complexes
This thesis describes reactions involving low valent technetium nitrosyl complexes. O-Substituted hydroxylamines were reacted with [TcOCl4]- in methanol producing [Tc(NO)Cl4]-. NMR studies have shown that two species are present besides the starting material during this reaction. One of these species was confirmed by NMR to be the corresponding alcohol of the O-substituted hydroxylamine. Th...
The Postglacial Population Spread of Picea Mariana, Picea Glauca, and Pinus Banksiana Across the Western Interior of Canada
In this thesis, the postglacial spread of three ecologically distinct species, Picea mariana (black spruce), Picea glauca (white spruce), and Pinus banksiana (jack pine), across the western interior of Canada are presented. The fossil pollen records from the sediments of thirteen lakes are used in reconstructing the population expansions of the three tree taxa. The objectives of this study ...
Further Sulphur Isotope Studies of the Taolin Lead-Zinc Ore Deposit
Sulphur isotope data from coexisting sulphides and sulphates from the 120m level of the Shangtancen ore body of the Taolin Pb-Zn ore deposit have been used to estimate the temperatures of sulphur mineral precipitation. The data indicate that sulphide was the dominant species in solution at both high and low temperatures. The data also show that the 𝛿34S value of total sulphur in solution w...
ESR Dating of Pleistocene Deposits
Near Medicine Hat, Alberta, Pleistocene deposits are exposed on numerous bluffs along the South Saskatchewan River. The Quaternary beds are very fossiliferous, yielding a large number of mammal bones and teeth. The enamel (calcium hydroxyapatite) portion of teeth within the sediments, is used to date the deposits with the electron spin resonance
(ESR) dating method. The ESR age is strongly...
Photosolvolysis of 1-Benzoyl-5-Bromo-7-Nitroindoline (A Mechanistic Study)
This thesis describes a study of the photosolvolysis of N-benzoyl-5-bromo-7-nitroindoline. The investigation was instigated because N-acyl-5-bromo-7-nitroindolines have been considered as potential photoprotecting groups for the photolithographic formation of charge-mosaic membranes. However, no kinetic data, and only scant mechanistic information, has been reported for the photofragmentati...
Toronto Social Housing & Health Study: Community Report 2
Participants experienced some significant positive changes after spending a year in their new unit: greater satisfaction with their home & neighbourhood; increased safety in their neighbourhood; and lower levels of distress (or mild depression).
There was no significant change over that first year in other aspects of their lives
Toronto Social Housing & Health Study: Community Report 1
Participants experience positive changes in areas that can be directly connected to improvement in housing and neighbourhood. After a year in their new unit, people experienced: greater satisfaction with their home and neighbourhood; greater sense of community; more safety in their neigbhourhood; and a small improvement in anxiety symptoms.
Strain Measurements from Deformed Quartz Grains in Metagreywackes of the Goldenville Formation, Meguma Group, Nova Scotia
Metagreywackes of the Goldenville Formation, Nova Scotia, possess a well developed penetrative cleavage. Measurement of strain, based on quartz grain shape, indicates that much of the strain has been achieved by pressure solution of detrital quartz grains. Strain ratios in the system range from X/Z = 3.8 in cleavage zones, through 2.0 in intermediate areas, to 1.6 in lithons. The volume los...
Spiro Oxadiazolines - Source of Cyclic Dioxa Carbenes
It is known that alkoxyoxadiazolines undergo thermal decomposition to form carbenes via an ylide intermediate. This project involved the preparation and subsequent thermolysis of spirooxadiazolines of type 4.
Spiro oxadiazoline (4) was prepared by oxidation of (3) with lead tetraacetate in dichloromethane. The first order rate constant for the thermolysis of 4b in benzene at 111°C i...
The Combination of Microbore Liquid Chromatography and Mass Spectrometry
An inexpensive method was developed for the conversion of a high performance liquid chromatography (HPLC) system for use with 1 mm I.D. microbore columns. Chromatographic performance of the system was tested under both isocratic and gradient elution conditions, using a standard mixture of 16 polycyclic aromatic hydrocarbons (PAH).
The microbore column HPLC was also coupled to a mass...
An Analysis of Commuting Distance and its Controlling Factors in the GTHA
The increasing length of the daily commute is a major issue for many commuters in the Greater Toronto and Hamilton Area (GTHA). In order to alleviate this problem through policy, the policy makers require more in-depth understanding of this issue. This study explores different travel behaviour, socioeconomic and labour market determinants of commuting distance for resident workers in the GTHA, ...
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