identifier: Samiuddin, J. (2016). Dynamic Model and Adaptive Control of a Transcritical Organic Rankine Cycle (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25758

contributor:
Macnab, Christopher John B
Pieper, Jeffrey Kurt
Goldsmith, Peter B.
Knight, Andrew Michael

subject:
Engineering--Electronics and Electrical
Adaptive
ORC
CMAC
Transcritical
Modelling
Control
Dynamic

abstract: The Transcritical Organic Rankine Cycle (TORC) is a non-linear time-varying heat recovery system for small-scale power generation. It is similar to a boiler-turbine system but uses organic fluid as the primary heat carrier instead of H2O and works in both subcritical and supercritical regions. The heat source can be either renewable energy or industrial waste-heat. In order for the TORC to work efficiently, it is essential the control system tracks the set points as closely as possible while remaining robust to disturbances; the control system design treats the heat source as a time-varying disturbance. To achieve this goal, this thesis presents a design of an adaptive Cere- bellar Model Articulation Controller (CMAC) which uses a single-input-single-output strategy by pairing the controlled variables (CVs) to the manipulated variables (MVs) using Relative Gain Ar- ray (RGA) analysis of the system. The CMAC improves performance and robustness compared to a traditional PI control.


identifier: Enright, L. R. (1973). A Study of teacher's assessments of information about classroom television (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/23561

publisher:
University of Calgary
Calgary

format:
xvi, 171 leaves ; 30 cm.
application/pdf

rights: University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.

subject:
LB 1044.7 E55 1973 Microfiche
Television in education

abstract: Bibliography: p. 79-80.


identifier: Hackney, S. L. (1996). Teacher/teacher aides in the integrated early childhood classroom: teacher practices (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/20148

format:
<xi>, 129 leaves ; 30 cm.
application/pdf

subject: LC 4602.5 H23 1996

subject: Mentally handicapped children - Education (Preschool)

subject: Education, Preschool

subject: Mainstreaming in preschool

subject: Teachers of mentally handicapped children

abstract: Bibliography: p. 81-90.


identifier: Zhou, Q. (2021). Stability of Depletion Chamber Edges in Oil Sands Recovery Processes (Unpublished master's thesis). University of Calgary, Calgary, AB.

publisher:
Schulich School of Engineering
University of Calgary

contributor:
Gates, Ian
Benneker, Anne
Sumon, Kazi
Siegler, Hector De la

subject:
oil viscous fingering
instability;
thermal-solvent recovery;
steam-assisted gravity drainage;
non-condensable gas
thermal viscous fingers
Engineering--Petroleum

abstract:
Many modifications to Steam-Assisted Gravity Drainage (SAGD) have been proposed to make the steam-based recovery process more efficient and profitable. A common approach is coinjection of additives with steam. There are two general classes of additives: first, solvents that dilute the bitumen leading to a higher mobility of oil phase and second, non-condensable gas (NCG) that provides an insulative effect in a reservoir to reduce heat loss and consequently raising the thermal efficiency. Solvents most used in oil sands processes are C3 to C7 solvents whereas NCGs typically consist of natural gas (methane) or carbon dioxide. Despite a lot of research on solvent and non-condensable gas additive processes, the underlying physical mechanisms of heat transfer, flow, and potential instability remain unresolved given the interplay of phase behavior, oil mobilization, heat transfer (conductive and convective), multiphase counter-current flow, and potential instabilities in steam-only, solvent-steam, and NCG-steam process are complex. This thesis documents research on these mechanisms and how they interact by using ultra-fine three-dimensional thermal reservoir models. The results of the analysis reveal that interfacial instabilities are observed in both pure-steam and steam-NCG (0.5 mol%) cases where the instabilities are evidenced by gas fingers that evolve above the top depletion chamber edge. The instability, triggered by dominant convective heat transfer, exhibits two types of fingers in the steam-only case: solution-gas fingers and thermally-stimulated oil viscous fingers, with consequently enhanced
heat transfer rate. In the NCG-steam case, only solution-gas fingers are present, and the length scale of the fingers is smaller than that in the steam-only case. In the steam-solvent case, the presence of solvent tends to suppress the onset of the instabilities. This is due to the rich solvent band present at the chamber edge which causes the mitigated temperature gradient and consequently lower tendency for solution gas ex-solved from oil sands.


identifier: Patten, S. (1999). The social context of hiv risk assumption and risk reductions strategies employed by injection drug users (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/24303

format:
x, 208 ; 30 cm.
application/pdf

subject:
HV5801 .P38 1999
Drug abuses--Social aspects.
Intravenous drug abuse--Social aspects.
HIV infections--Prevention.
Narcotic addicts--Psychology.
HIV infections--Risk factors.

abstract: Bibliography: p. 187-192.


identifier: Omar, A. R. (1972). A Study of some problems in computer-controlled queuing systems (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/23157

format:
x, 86 leaves : ill. ; 30 cm.
application/pdf

subject:
T 57.9 O43 1972 Microfilm
Queuing theory

abstract: Bibliography: p 73-77.


identifier: Duke, L. (1984). An Assessment of the needs of handicapped adults in three communities in the East Kootenays (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/20216

format:
vii, 197 leaves ; 30 cm.
application/pdf

subject: HV 1559 C2 D83 1986

subject: Handicapped - Services for - British Columbia

abstract: Bibliography: p. 147-161.


identifier: Baehre, K. M. (2008). The isolated axon supports synaptic transmission and plasticity in lymnaea neurons (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/1879

format:
ix, 101 leaves : ill. ; 30 cm.
application/pdf

abstract:
Bibliography: p. 94-101
Some pages are in colour.


identifier: Puszczalowski, P. (2016). Creativity, Culture, and Genius: Nietzsche's Ethics of the Creative Life (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25485

publisher:
Graduate Studies
University of Calgary
Calgary

contributor:
Migotti, Mark H.
Haji, Ishtiyaque Hussein
Framarin, Christopher George
Berry, Jessica N.
Goldstein, Joshua David

subject: Philosophy Creativity Genius Culture Nietzsche

abstract:
In my dissertation Creativity, Culture, and Genius: Nietzsche's Ethics of the Creative Life I aim to articulate what creativity means to Nietzsche. I present an account of Nietzsche in which creativity exemplifies the "highest potential power and splendour" (GM P: 6) of human beings. Specifically, I hope to demonstrate that what is best about us is creativity, and that to live a creative life is to have creativity as a governing principle.
Although Nietzsche does not explicitly state that people should have creativity as a governing principle for organizing lives, I will show that this thought lies within his work implicitly. To do this, I use Aristotle as a foil for Nietzsche and contrast their thinking on the question, "What characteristic exemplifies what is best about humans?" Aristotle believed that there were three potential answers to this question: pleasure, noble action and politics, and contemplation. I put Nietzsche to work philosophically, contrasting these three possible answers with Nietzsche's philosophy, and showing that none of them are viable options.
The positive portion of my project focuses on demonstrating the interconnectedness of creativity, culture, and genius for Nietzsche. The importance of these three concepts cannot be underestimated in Nietzsche's philosophy, and I show how they are vital to his thought – with creativity serving as the central focus and a governing principle for human beings.


identifier: Gauci, J. (2004). A strategic approach to municipal economic development: a case study of the Municipal District of Big Lakes, Alberta (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/16411

publisher:
Environmental Design
University of Calgary
Calgary

format:
192 leaves : ill. ; 30 cm.
application/pdf

abstract: Bibliography: p. 183-192

abstract: Some pages are in colour.

abstract:
This Master's Degree Project applies a strategic approach to municipal economic development in a rural Municipal District in Northern Alberta. It explores the distinct challenges facing rural communities in the current economic climate, and reviews past and current approaches to economic development in rural settings. It places an emphasis on the roles of local governments, strategic planning, and collaboration in successful local economic development, and attempts to develop practical short-term to mid-term solutions that will enable the local government to better position itself for economic development.
A proactive and strategic approach based on key informant interviews and data analysis is employed. Objectives include: researching best practices; undertaking a local economic assessment (with an emphasis on understanding the role of key regional sectors); undertaking economic development opportunity identification; and providing recommendations on how the local government can facilitate long-term economic development.
Findings reveal the need to continue down the path of further economic diversification and job creation. The study assumes that it is imperative for the emerging innovation and competitiveness agenda to extend beyond high technology industries to Canada's traditional industries, such as forestry and agriculture. Furthermore, the report concludes that it will not be one major economic opportunity but a combination of many small and varied economic opportunities that has the potential to improve the long-term economic base of the region.
Recommendations are aimed at fostering local business growth, developing organizational capacity, undertaking marketing and promotion, and fostering partnership building with neighbouring local government. A variety of strategies for implementation are identified, ranging from modest initiatives, such as implementing a benchmarking framework and establishing a "one-stop shopping" information area, to joining a regional alliance and creating an economic development body or position.


identifier: MacLean, S. (2006). The link between creativity and affect in adolescents (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/383

format:
vi, 121 leaves ; 30 cm.
application/pdf

abstract: Bibliography: p. 102-113


identifier: Irani, M. (2017). On Stability in Gravity Drainage Oil Sand Recovery Process (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/27186

contributor:
Gates, Ian
Natale, Giovanniantonio
Maini, Brij
Larter, Stephen
Zeng, Fanhua

subject:
Engineering--Petroleum
Fingering
Subcool
Stability
SAGD
Liquid Pool
Nsolv Process
Observation Well

abstract: The controlling feature of steam-based recovery processes is heat transfer from the steam chamber to the formation – the greater the heat flux, the larger the oil volume heated and the higher the oil drainage rate.  Stability phenomena in SAGD occur both at the edge of the chamber and at the liquid pool that exists above the production well.  Previous studies have demonstrated that instability at the steam chamber edge can enhance heat transfer there by creating limited-amplitude steam fingers which enlarge the heat transfer area thus leading to greater thermal efficiency of the recovery process. In the research documented in this thesis, the stability between steam condensate and bitumen at the edge of the chamber is explored by deriving a new steam pressure diffusion equation.  The results show that the stability is controlled by the interface velocity and water-phase hydraulic diffusivity.  Also, the results demonstrate that at typical SAGD operation conditions, the chamber edge is unstable.  In the liquid pool, the key measurement to maintain its stability is associated with steam trap control.  The main objective is to keep subcool higher than set value which varies between 0 to 40° and even higher values. This study presents a new method to calculate the liquid pool level from temperature profile in observation wells, and liquid pool shrinkage as a function of time. Using this method, envelopes are suggested to differentiate three different regimes: “stable production”, “liquid pool depletion” and “steam breakthrough limit”. In solvent-based liquid pool trap control, analysis of the Nsolv field results and stability analysis suggests that vapour breakthrough is part of the process but can be minimized by operating at temperatures greater than second subcool limit.


identifier: Fuentes Izaguirre, C. C. (2009). North American lesbian film and its impact on the construction of lesbian identity in Aguascalientes, Mexico (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/3215

format:
viii, 143 leaves : ill. ; 30 cm.
application/pdf

abstract: Bibliography: p. 111-123


identifier: Shah, M. K. (1977). Development of a procedure for use of an equation of state in computations of multistage multicomponent separation processes (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/16107

publisher:
Engineering
University of Calgary
Calgary

format:
viii, 169 leaves : ill. ; 30 cm.
application/pdf

subject: TP 156 S45 S53 1977 Microfiche

subject: Separation (Technology) - Mathematical models

abstract: Bibliography: p. 125-128.


identifier: Saldanha, L. T. (2004). Colouring outside the lines: children's literature by women of colour in Canada (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/16272

contributor:
McGillis, Roderick F.
Srivastava, Aruna

format:
xi, 262 leaves ; 30 cm.
application/pdf

abstract: Bibliography: p. 233-256


identifier: Mahon, B. M. (1976). Educational alternatives for the pregnant schoolgirl (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/20107

format:
vii, 113 leaves ; 30 cm.
application/pdf

subject:
LB 3433 M34 1976 Microfiche
Pregnant school girls - Alberta

abstract: Bibliography: p. 99-103.


identifier: Lintott, L. (1993). Cellular adaptations to gene amplification (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/15066

format:
xii, 85 leaves ; 30 cm.
application/pdf

subject:
QP 552 M47 L56 1993
Metallothionein - Research
Gene amplification

abstract: Bibliography: p. 77-85.


identifier: Wu, K. (2011). Molecular and genetic determinants associated with the emergence of community-associated methicillin-resistant staphylococcus aureus (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/4203

contributor:
Zhang, Kunyan
Conly, John M.

format:
xvii, 198 leaves : ill. ; 30 cm.
application/pdf

abstract: Bibliography: p. 174-198

abstract: Many pages are in colour.

abstract: Includes copy of animal protocol approval.  Original copy with original Partial Copyright Licence.


identifier: Chojnacki, A. K. (2003). Cellular and molecular properties of mammalian ventral forebrain precursors (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/15420

format:
xxi, 235 leaves : ill. ; 30 cm.
application/pdf

abstract: Bibliography: p. 197-235


identifier: Khokhar, B. (2014). Exploring Novel Diabetes Surveillance Methods: A Comparison of Administrative, Laboratory and Pharmacy Data Case Definitions (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/26093

subject: Epidemiology

subject: Public Health

subject: Diabetes

subject: International Classification of Diseases

subject: ICD Codes

subject: Read Codes

subject: The Health Improvement Network

abstract:
Rationale: There are several ways to potentially identify diabetes for the purpose of surveillance and hence it is crucial to understand the validity of these approaches.
This thesis systematically reviewed population-based studies validating ICD-9 and ICD-10 codes reporting on sensitivity, specificity and PPV of case definitions. Data from THIN was used to study demographic differences of the populations being captured using different case definitions.
Methods: Electronic databases were systematically searched for validation studies where an administrative case definition of diabetes was validated and test measures reported. The second sub-study used a large EMR to compare different case definitions of diabetes with respect to the number of cases identified and characteristics of each cohort.
Conclusion: This thesis demonstrates that the validity of commonly used case definitions varies significantly. Whether using administrative or clinical data, this work illustrates the importance of using multiple data sources to effectively capture individuals with diabetes.


identifier: Hammam, M. (2016). Analytical Unsteady Aerodynamic Models for Horizontal Axis Wind Turbines (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/24827

contributor:
Wood, David
Crawford, Curran
Morton, Chris
Johansen, Craig
Ware, Antony
Visser, Ken

format: application/pdf application/pdf application/pdf application/pdf

subject:
Energy
Engineering
Engineering--Mechanical
Unsteady aerodynamics
Wind turbnines
Analytical models

abstract:
This thesis describes the development of unsteady aerodynamic models of wind turbines within the framework of blade element momentum theory. The main purpose is to build analytical models, and test them against available wind tunnel and field test data. The unsteady wake is modeled using vortex methods. The analysis covers unsteady loading due to fast pitch change at constant wind speed, and varying wind speed at constant pitch. The analysis can be extended to more complex conditions.

The work starts by modeling dynamic inflow effects as an inertia force, with a new developed expression of the apparent mass and rotational inertia of the rotor vortices. Further assumptions lead to a Ricatti differential equation for the axial induction, which has an analytical solution. First, linear pitch changes are investigated, and the unsteady thrust and torque are calculated. The model is shown to be accurate in comparison to the available experiments. The model is then extended to low tip speed ratios in the form of an Abel differential equation, which appeared to be more accurate. However, comparison with measurements has shown that the assumptions leading to the Abel equation model are inconsistent. The unsteady load is characterized by a large overshoot for high pitch rate. To alleviate this an analytical solution of exponential pitch angle is developed.

%An analytical model is obtained for the exponential pitch case and validated against experiment.

Next, the unsteady load due to varying wind speed at constant pitch is modeled. The dynamic inflow model is extended to include the circulatory effect of the wake. A new unsteady model is developed from first principles. The wake is modeled as an initial vortex cylinder and vortex rings released onto the wake with each revolution of the blades. The circulatory effect is described by a new function. The model is simplified further by approximating the wake effect to get an analytical solution for the case of linearly varying wind speed. The unsteady lift is modeled and combined with the dynamic inflow model to obtain a fully unsteady model in state space form. The different models are validated with experiments, and the unsteady lift effect is found to have importance for short time period transients.


identifier: Wu, M. (2016). Nanophotonic Optomechanical Devices for Torque Magnetometry (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/27057

contributor:
Barclay, Paul E.
Simon, Christoph
Tittel, Wolfgang
Plume, René
Kim, Seonghwan
Fuchs, Greg

subject:
Condensed Matter
Optics
Optomechanics
Nanophotonics
Magnetometry
Nanotechnology
Photonic Crystals
Magnetism
Nanomechanics

abstract:
Torque magnetometry is a powerful and sensitive method for studying intricate mesoscopic magnetic events inside magnetic materials using nanomechanical resonators. Over the years, the field of cavity optomechanics has demonstrated ever increasing sensitivity, with measurements limited by the quantum motion of a device possible in state-of-the-art devices.
In this thesis, a nanophotonic cavity is integrated into a nanomechanical resonator for optomechanical
detection of torque driven by the interaction of a permalloy island with applied magnetic fields. This marks the first time were a nanocavity optomechanical sensor is applied to a nanoscale condensed matter system. This cavity optomechanics platform enabled torque magnetometry measurements to be performed with sufficient sensitivity for detection of Barkhausen features that were previously undetected in ambient conditions. The device was used to demonstrate a new form of nanomechanical radio-frequency susceptometry where enhanced magnetic susceptibility associated with single pinning and depinning events of a magnetic vortex core were observed. This optomechanical device increased torque magnetometer sensitivity by over an order of magnitude.
The torque sensitivity of the device derives from the optimization of the optomechanical interactions in a photonic crystal split-beam cavity. Two types of dissipative optomechanical couplings were observed as a result of the mechanical motion modulating the intra-cavity photon lifetime and the cavity input-output coupling rate. Interference between dissipative and dispersive optomechanical mechanisms enhance detection sensitivity and generate mechanical-mode-dependent optomechanical wavelength response. Dissipative coupling of up to   500 MHz/nm and dispersive coupling of 2 GHz/nm, enables measurement of sub-pg torsional and cantilever-like mechanical resonances with a thermally-limited torque detection sensitivity of 1.2 ×10−20 Nm/sqrt(Hz) in ambient conditions. Tuning of both dissipative and dispersive optomechanical couplings is also demonstrated through renormalization of the cavity field mediated by its evanescent interaction with a fiber taper near-field probe. Strategic fiber taper placement allows for reconfiguration of the dominant optomechanical transduction mechanism and spatially selective optical readout of mechanical resonances such as out-of-plane cantilever modes suitable for sensing applications.


identifier: Noor, M. S. (2018). Intrinsic Optical Imaging of Cortex During Deep Brain Stimulation: Parameters, Spatiotemporal Dynamics and Neurovascular Coupling (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/31855

publisher:
Graduate Studies
Schulich School of Engineering
University of Calgary
Calgary

contributor:
Kiss, Zelma H. T.
Murari, Kartikeya
Frayne, Richard
Hu, Bin

subject:
Deep Brain Stimulation
Neurovascular Coupling
Intrinsic Optical Imaging
Cortical Perfusion
Stimulation parameters
Motor Cortex
Thalamus
Extracellular electrophysiology
Neuroscience
Engineering
Engineering--Biomedical

abstract: Deep brain stimulation (DBS) is clinically used to treat various movement disorders and has a potential to ameliorate other conditions such as depression, epilepsy etc. However, the mechanism through which DBS alleviates symptoms is not clear which prevents its efficient application and expansion to new conditions. Modulation of motor cortex due to DBS is thought to be imperative in this therapy. Recent electrophysiology and imaging studies investigating the effects of DBS on motor cortex have reported contradictory results. One reason of this disagreement is that functional imaging techniques (functional magnetic resonance imaging and positron imaging tomography) commonly used to study DBS are neither suited for mechanistic understanding nor for chronic measurements. In this thesis, I tested a similar functional imaging technique, called intrinsic optical imaging (IOI), which can be used to better probe the functioning of DBS in animals models because it allows simultaneous imaging and electrophysiology, neurochemical manipulations, and long-term recording over months. I established that IOI can measure DBS-induced cortical perfusion consistently and using this technique I studied how various parameters of DBS, which are critical to its therapeutic effect, modulate motor cortex perfusion in rodents.  The temporal and spatial dynamics of perfusion were dependent on the parameters of DBS. 'Maximum change in reflectance' and its spatial spread (two measures of hemodynamic response) increased linearly with increases in current amplitude or pulse width and had a non-linear relationship with frequency. Using simultaneous imaging and electrophysiology, I studied the relationship between DBS-induced neural and vascular response — neurovascular coupling, understanding which is necessary to interpret the data acquired with functional imaging techniques used in patients. Neurovascular coupling relationship was developed between 'maximum change in reflectance' (MCR, a measure of vascular response) and 'integrated evoked potential (IEP)' or 'multiunit broadband power' (two measures of neural response). The relationship between MCR and IEP was maintained to a stimulation frequency of 60 Hz: both increased with the frequency of stimulation. However, above 60 Hz MCR saturated while IEP increased linearly to the maximum frequency tested of 100 Hz. The relationship between MCR and multi-unit power remained coupled for the whole range of stimulation frequency applied. These relationships will help researchers in the interpretation of functional imaging studies during DBS. The technique established here and my results will further our understanding of DBS, help to improve this therapy and provide an opportunity to expand it to treat new neurologic and psychiatric conditions.


identifier: Stevenson, D. T. (1983). Depression in children with learning disabilities: an exploratory study (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/11617

format:
xii, 123 leaves : ill. ; 30 cm.
application/pdf

subject:
RJ 506 D4 S82 1986
Depression in children
Learning disabled children

abstract: Bibliography: p. 95-103.


identifier: Jones, C. E. (1967). Emotionality and stimulus selection: the effects of infantile stimulation on response to change and learning in adulthood (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/13028

format:
xii, 100 leaves : ill. ; 30 cm.
application/pdf

subject:
BF 319 J65 1967 Film
Change (Psychology)
Learning, Psychology of
Psychology

abstract: Bibliography: p. 86-90.


identifier: Strand, J. T. (1996). Soil erosion in a Blue Mahoe (Hibiscuselatus) forest plantation and a secondary rainforest of the Colonarie River watershed, St. Vincent, West Indies (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/16290

format:
xiii, 181 leaves : ill. ; 30 cm.
application/pdf

subject:
SD 390.4 S77 1996
Soil erosion
Forest soils
Forest conservation

abstract: Bibliography: p. 125-136.


identifier: Berenson, C. (2014). Pondering periods: Young women talk about menstruation in the age of menstrual suppression (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/27381

subject:
Sociology
Menstruation
Menstrual suppression
Medicalization
Women's health
Focus groups
The Pill

abstract:
Seasonale, a birth control pill designed and marketed expressly to suppress menstruation, has been on the Canadian market since 2007 yet ‘menstruation by choice’ remains a controversial issue.  This dissertation investigates menstrual suppression from the perspectives of experts in the field of women’s health and those of young women as a target group for this practice.  It also explores the broader question of what everyday menstrual life looks like for young women in this time when menstruating seems to be on the wane.  Utilizing a history of medicalization to contextualize the current state of affairs, this thesis draws upon insights from practice theory to map the nuances and complexities of menstruation and menstrual suppression using data from policy documents and focus group interviews.
The parameters of the menstrual suppression debate are laid out as presented by the Society for Obstetricians and Gynaecologists of Canada and their counterparts, the Society for Menstrual Cycle Research. In framing what they see as the key issues of concern, these experts reveal disparate underlying assumptions about the menstrual cycle itself, the technology of the birth control pill, women’s decision making, and what constitutes risk. The women’s views about menstrual suppression are far from straight forward, with risks associated with pregnancy detection, future fertility, and the pill’s interference with ‘nature’ on their list of concerns. They speak back to the experts, reconfiguring the parameters of the issue and revealing considerable skill in maneuvering the complexities of the choice-making terrain.
In the everyday of young women’s lives, menstruation involves considerable work, not only during one’s period but also in terms of getting ready for it. In their talk about selecting a menstrual management product, participants draw upon interpretive frameworks to do with economics, the environment, health, hygiene, and growing up.  In terms of managing menstrual bleeding they describe engaging in numerous routine practices in order to hide the evidence of their periods from both males and sometimes females in their lives. This work is compulsory, complicated and context-dependent, with some spheres of activity particularly revealing of high stakes consequences of failure.  More broadly, they both reinforce and challenge notions of menstruating bodies as abject in male normative space, and balance attending to menstruation against erasing the fact of its existence as they describe their embodied menstrual routines.


identifier: Roseman, M. (1993). Design of a real-time groupware toolkit (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/18058

title: Design of a real-time groupware toolkit

format:
viii, 122 leaves : ill. ; 30 cm.
application/pdf

subject: HD 66 R65 2993

subject: Work groups - Data processing

subject: Business - Data processing - Management

subject: Business - Communication systems - Management

abstract: Bibliography: p. 102-110.


identifier: Shehata, M. (1984). Fatigue performance and economics of recycled asphalt pavements (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/11449

format:
xi, 125 leaves : ill. ; 30 cm.
application/pdf

subject:
TE 270 S 52 1986
Pavements, Asphalt - Recycling
Pavements, Asphalt - Fatigue

abstract: Bibliography: p. 87-90.


identifier: Mackie, E. B. (1986). The B cell response of the mouse to antigens of a live Salmonella Typhimurium vaccine (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/14766

format:
xvi, 181 leaves : ill. ; 30 cm.
application/pdf

subject:
QR 201 T9 M22 1987
Micro-organisms, Pathogenic
B cells
Typhoid fever

abstract: Bibliography: p. 167-181.


identifier: Heycock, M. C. (1972). Professionalism in politics (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/23614

title: Professionalism in politics

format:
vii, 78 leaves ; 30 cm.
application/pdf

subject:
JN 405 H48 1972
Cabinet system - Great Britain
Cabinet system - Canada
Canada - Politics and government
Great Britain - Politics and government

abstract: BIbliography: p. 74-78.


identifier: Yingst, L. R. (1973). Academic and social images of the University of Calgary as perceived by freshman students (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/24150

format:
x, 225 leaves : ill. ; 30 cm.
application/pdf

subject:
LB 1131 Y54 1973 Microfiche
Students - Attitudes
University environment
University of Calgary

abstract: Bibliography: p. 117-134.


identifier: Philibert, K. D. (1995). ADP-ribosylation of neuronal tissue specific protein B-50 (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/21625

format:
xv, 184 leaves ; 30 cm.
application/pdf

subject:
QP 625 A29 P48 1995
Nerve tissue
ADP-ribosylation

abstract: Bibliography: p. 160-184.


identifier: Kutcher, J. (2012). Clonal analysis of synovial fluid-derived mesenchymal stems cells in a porcine model (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/4758

contributor:
Frank, Cyril B.
Hart, David A.

format:
x, 106 leaves : ill. ; 30 cm.
application/pdf

abstract: Bibliography: p. 89-106

abstract: A few pages are in colour.

abstract: Mesenchymal stem cells (MSCs) were isolated from porcine synovial fluid (SF), and clonal populations derived through limiting dilution. Eighteen clones from three pigs (6 per pig) were then analyzed for their proliferative and differentiation characteristics. All 18 clones were able to undergo at least 25 population doublings, suggesting a high self-renewal capability. Their differentiation properties were assessed using histological stains and RT-PCR. Less than 50% of clones were capable of osteogenic differentiation, while greater than 75% were bipotent chondro-adipo progenitors; a phenotype never reported in other tissue types. In addition, all but one clone differentiated into chondrocytes, indicating an enhanced potential for cartilage regeneration. Despite using clonal populations, a great deal of variation was present between clones showing distinct differentiation potentials. The presented study suggests that clonal analysis is an effective method of identifying subpopulations in porcine SF, and that SF-derived MSCs may be an ideal tissue source for regenerating cartilage.


identifier: Robinson, C. A. (1991). mRNA expression in Alzheimer's disease neocortex in relation to age at death and pathologic severity (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/22267

format:
xiii, 204 leaves : ill. ; 30 cm.
application/pdf

subject:
RC 523 R64 1991
Alzheimer's disease

abstract: Bibliography: p. 172-204.


identifier: Zheng, B. (2013). Interactive Visualization to Reveal Activity Patterns of Marine Mammals and Boat Traffic in the St. Lawrence Estuary in Quebec, Canada (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/26607

subject: Geography

subject: Visualization, spatial temporal datasets, pattern, geovisualization, geography

abstract: Intensive human activities of commercial shipping, ferries, and tourism have posed cumulative threats to the marine mammals in the St. Lawrence Estuary. In order to understand and quantify the exposure of marine mammals to visiting traffic, an agent-based model was built to simulate the behaviour of whales and boats in a portion of the St. Lawrence Estuary, which covers the Saguenay-Saint Lawrence Marine Park and the proposed Saint Lawrence Estuary Marine Protected Area. This model serves as a decision support tool to test the impact of various zoning and regulatory scenarios proposed by the Park’s managers. The objective of this research was to design and implement an interactive Geovisualization software program to manage the large datasets in volumes generated by the agent-based model to reveal, demonstrate and explore the potential activity patterns of marine mammals and boat traffic. This module includes two main components: the Database Module and the Application Module. The Database Module was designed using a standard general-purpose relational database management system. Through an interactive visual user interface, the Application Module offers a series of functionalities to visualize the results of users’ queries at both aggregate and disaggregate level. This software successfully allows the agent-based model to demonstrate the activity patterns of boat traffic and marine mammals by: 1) integrating many interactive dimensions at the same time while avoiding the interpretative complexity of multivariate pattern generalization or recognition methods, 2) verifying if the simulated patterns have a good fit with the real world, 3) allowing the Park’s managers to perform exploratory analysis for testing their regulation scenarios, and 4) providing a visual spatial support to aid spatial decision making process regarding the sustainable management of the Marine Park.


identifier: Lotfali Kazemi, P. (2010). Development of new filter and tracking schemes for weak gps signal tracking (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/3595

contributor:
Lachapelle, Gérard
O'Driscoll, Cillian

format:
xiv, 175 leaves : ill. ; 30 cm.
application/pdf

abstract:
Bibliography: p. 170-175
Many pages are in colour.


identifier: Ceci, C. (1999). Woman: mother: poverty: interpretive gestures (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/15841

publisher:
Nursing
University of Calgary
Calgary

format:
vi ; 119 leaves ; 30 cm.
application/pdf

subject:
RT86.5 .C43 1999
Nursing - Social aspects
Women - Health and hygiene
Poor women
Motherhood
Nurse and patient
Caring
Feminism
Bible - Hermeneutics
Hermeneutics

abstract: Bibliogrpahy: p. 109-117


identifier: Brown, D. K. (1996). Maturation of human cochlear mechanisms as reflected in distortion product emissions (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/15795

format:
xi, 201 leaves ; 30 cm.
application/pdf

subject:
QP 461 B76 1996
Hearing
Developmental neurology

abstract: Bibliography: p. 160-177.


identifier: Xiong, C. (2017) Thalamocortical forward modulation in the auditory cortex (Unpublished doctoral thesis). University of Calgary, Calgary, AB

publisher:
Science
University of Calgary

contributor:
Yan, Jun
Eggermont, Jos
Stell, Bill
Hu, Bin

rights:
In consideration of Library and Archives Canada making my thesis available to interested persons, I, Colin Xiong hereby grant a non-exclusive license, for the full term of copyright protection, to Library and Archives Canada:
to preserve, perform, produce, reproduce, translate theses and dissertations in any format, and to make available in print or online by
telecommunication to the public for non-commercial purposes. I undertake to submit my thesis, through my university, to Library and Archives Canada. Any abstract submitted with the thesis will be considered to form part of the thesis. I represent and promise that my thesis is my original work, does not infringe any rights of others, and that I have the right to make the grant conferred by this non-exclusive license. If third party copyrighted material was included in my thesis for which, under the terms of the Copyright Act, written permission from the copyright owners is required I have obtained such permission from the copyright owners to do the acts mentioned in paragraph (a) above for the full term of copyright protection. I retain copyright ownership and moral rights in my thesis, and may deal with the copyright in my thesis, in any way consistent with rights granted by me to Library and Archives Canada in this non-exclusive licence. I further promise to inform any person to whom I may hereafter assign or license my copyright in my thesis of the rights granted by me to Library and Archives Canada in this non-exclusive licence.

subject: single-unit model of thalamocortical forward modulation

subject: auditory temporal processing

subject: in vivo electrophysiology

subject: auditory forward masking

subject: thalamocortical system

subject: Education--Sciences

abstract: Auditory masking is a psychoacoustic phenomenon with strong physiological correlates in the central auditory system such as in the primary auditory cortex. The caveat of conventional two-tone paradigms in testing the neurophysiology of forward masking (i.e., forward suppression) is that tones are processed at every auditory center, meaning the recorded activities do not represent the pure characteristics of the recorded site. Thus, there is a great need for a specialized protocol to tease out and uncover the pure suppression characteristics at each site, particularly the thalamocortical system - the primary sensory input to the auditory cortex. This study implemented an in vivo thalamocortical model in C57 mice along with common electrophysiological techniques to examine the pure role of the thalamocortical system in cortical forward modulation; focal electrical stimulation (ES) of the ventral division of the medial geniculate body (MGBv, ESMGBv) substituted for one or both tones of the conventional two-tone stimulus paradigm. With this ameliorative approach, I demonstrated that ESMGBv facilitated succeeding ESMGBv while suppressing succeeding tones. This suggests that the default state of the thalamocortical system is facilitation while maintaining the capability of forward suppression through heterosynaptic thalamocortical inputs. Forward suppression of tones by ESMGBv was comparatively weaker than forward suppression of ESMGBv by tone stimulus. The period of complete suppression in the cortex for all stimuli was approximately 100 ms. Furthermore, the thalamocortical forward suppression spectral areas were found to be mirrored images of the receptive fields of recorded cortical neurons. Together, these data suggest that thalamocortical forward facilitation and suppression in the recorded cortical neurons can be accomplished without the involvement of complex cortical circuitry. This idea is further supported by the finding that cortical GABAA inhibition was not required for the thalamocortical forward suppression. Additionally, it was shown that two-tone stimulus resulted in complete MGBv suppression for approximately 75 ms. This means that the thalamus provides the cortex with a 75 ms “silent window” during which cortical mechanisms, such as GABAA inhibition, are not necessary for forward suppression. Following careful investigation of literature, a novel "single-cell” model appears to account for thalamocortical forward modulation.


identifier: Cheng, W. T. (2006). Registration for the in-vivo studies of osteoarthritis based on magnetic resonance imaging (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/460

format:
xv, 195 leaves : ill. ; 30 cm.
application/pdf

abstract:
Bibliography: p. 179-187
Some pages are in colour.


identifier: Oyler, K. A. (1972). The July crisis of 1914 (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/15392

title: The July crisis of 1914

format:
v, <122> leaves ; 30 cm.
application/pdf

subject:
D 511 O84 1972 Microfilm
World War, 1914-1918 - Causes

abstract: Bibliography: p. 102-109.


identifier: Yergens, D. W. (2015). Deriving Evidence for Healthcare Decision Makers: The Case of Patient Flow (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25561

publisher:
Graduate Studies
Medicine
University of Calgary
Calgary

subject:
Epidemiology
Health Care Management
Health Services Research
Health Care Management
Evidence Informed Decision Making

abstract:
In an ideal world, decision makers in health systems would make optimal decisions in a timely manner, fully informed by relevant information and evidence delivered in a timely way.  This paradigm of Evidence-informed Decision Making (EIDM) is one that health systems can realistically strive for, so that decision makers can be enabled with the best available evidence for informed operational, tactical and strategic decisions. Methods to generate and convey evidence-based information include various types of literature reviews; data collection and statistical analysis through existing data sources or primary data collection; and the timely presentation of data and information in various presentation formats, sometimes referred to as dashboards and/or scorecards. One particularly challenging area in the healthcare sector, where EIDM could be of benefit, is in the management of patient flow in acute care hospitals.
This dissertation showcases a mixed methodology program of work, applied to several sub-studies examining several aspects of patient flow in acute care hospitals: 1) A scoping review on the topic of patient flow in hospitals demonstrated a wide body of literature, but an overall lack of hospital-wide approaches; 2) An analysis of existing administrative data examined sepsis patients admitted to the hospital via the emergency department (ED) and demonstrated that patient outcomes may be impacted by Intensive Care Unit (ICU) occupancy;   3) A narrative review on information dashboards; 4) An accompanying survey study of ward-level patient flow decision-makers demonstrated a variety of views (and some fundamental disagreement) on what dashboards and scorecards actually are, but also some general enthusiasm for their potential in an EIDM paradigm; 5) A scoping review exploring novel machine learning methods demonstrated their potential application around various patient flow concepts in hospital settings; 6) A systematic review and meta-analysis of Medical Assessment Units (MAUs), solicited by health system decision-makers, summarized existing published evidence on MAUs and their benefits;  and finally 7) An accompanying national environmental scan survey study of existing MAU-like initiatives in Canada.
This dissertation illustrates how a variety of methods can be used to support a paradigm of EIDM in the area of patient flow.


identifier: Hannah, J. A. (2020). How Spatial is Spatial Language? Investigating the Relationship Between Spatial Cognition and Abstract Language Processing (Unpublished master's thesis). University of Calgary, Calgary, AB.

title: How spatial is spatial language? Investigating the relationship between spatial cognition and abstract language processing

publisher:
Arts
University of Calgary

contributor:
Iaria, Giuseppe
Pexman, Penny M.
Curtin, Suzanne
Graham, Susan A.

subject: Psychology--Cognitive

abstract: The present study aimed to explore the relationship between spatially grounded language and spatial cognition. According to embodied cognition, sensitivity to spatial grounding should be related to experience with spatial cognition. Participants completed three language tasks assessing their sensitivity to spatial grounding and three spatial tasks assessing different facets of spatial cognition. These language tasks were derived from previous studies that showed spatial grounding effects. Only of these effects was replicated; the presence of a mental number line. From each of the language tasks, a spatial grounding sensitivity score was calculated based on the difference in reaction times between incongruent and congruent trials. These sensitivity scores were then correlated to performance on the spatial tasks. The results showed almost no significant correlations between the language tasks and spatial tasks, even when looking at those individuals who were most highly sensitive to spatial grounding. Overall the results of this study do not support an embodied view of cognition.


identifier: Gomez Quevedo, R. A. (2015). Fundamental Kinetic Studies of CO2 and Steam Gasification (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/26248

subject:
Engineering--Chemical
Gaification
Reaction rate
Kinetic Model
Activation energy
Thermochemical conversion

abstract:
Gasification is the thermochemical conversion of a carbon-based fuel into a combustible product gas (syngas) using a gasifying agent, such as steam, carbon dioxide (CO2) or a combination of both. The application of this technology is limited, due to its slow reaction rate, making kinetics determination one of the most active research topics in this field. Different kinetic models have been proposed in the literature for the study of coal and biomass gasification, based on assumptions about their reaction mechanisms. Consequently, a thorough understanding of gasification mechanisms and the validity of these accepted assumptions is necessary to align theoretical studies and industrial results.

A maximum rate is typically observed when the experimental gasification rates are plotted against conversion. The scientific community considers this to be an inherent part of the reaction mechanism, associated specifically with char surface changes. It is proven here that the stated maximum rate is a consequence of the reaction gas concentration development. Moreover, the increase in time for which the sample is held in an inert atmosphere reduces the char mesopore area, thereby reducing the char reactivity. As a result of the non-existence of a maximum gasification rate associated with changes in the char surface, kinetic modeling can be simplified.

The active char surface area (based on its carbon content) and the amount of catalyst (related to the char alkali content) are the most important variables affecting char reactivity. A new semi-empirical equation correlating these two variables has been developed to estimate gasification rate constants of raw coal and their mixtures for a broad range of ash contents.

The selection of a kinetic model mathematically affects the estimation of the kinetic parameters, i.e. activation energy and frequency factor. Therefore, a validation tool for kinetic models is the comparison of their kinetic parameters with those estimated independent of a kinetic model. A new theoretical approach to estimate kinetic parameters independent of a kinetic model for batch experiments has been derived and evaluated for coal gasification. The method can be extended to any chemical reaction and is, therefore, a contribution to chemical reaction engineering fundamentals.

The assumption of no mass transfer limitations has been studied at temperatures lower than 900°C. It has been proven that steam gasification rates from most literature reports are limited by interparticle diffusion. A new experimental gasification procedure with negligible mass transfer limitations that do not induce a maximum rate has been developed, providing an alternative for more accurate kinetic studies.


identifier: Linke, J. (2011). Development and application of a framework for flexible and reliable landscape monitoring: changes in the Alberta foothills and the impact on grizzly bear habitat (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/4012

format:
xv, 163 leaves : ill. ; 30 cm.
application/pdf

abstract: Bibliography: p. 160-163

abstract: Some pages are in colour.

abstract: Includes copies of copyright permission.  Original copies with original Partial Copyright Licence.


identifier: Khansari, Z. (2014). Low Temperature Oxidation of Heavy Crude Oil: Experimental Study and Reaction Modeling (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/26800

contributor:
Mahinpey, Nader
Gates, Ian D.

subject:
Engineering--Petroleum
Low Temperature Oxidation
In Situ Combustion
Heavy Oil
LTO subzones

abstract: In situ combustion (ISC) or air injection is one of the oldest thermal methods for enhanced oil recovery.  In this technique, air or oxygen-enriched air is injected into the formation.  A portion of the oil combusts in situ and provides heat, water, and product gases.  Within the oil formation, three major combustion regions can be recognized:  Low Temperature Oxidation (LTO), Thermal Cracking (TC), and High Temperature Oxidation (HTO).  LTO provides fuel for HTO to sustain the combustion front.  Therefore the success of ISC process directly depends on quality and quantity of LTO residues.  The research documented in this thesis comprises four studies.  The first study consisted of experimental investigations to evaluate the thermal behavior and reaction kinetics of an Alaskan and Lloydminster heavy oils by using thermogravimetric methods to examine isothermal and ramped temperature oxidation reactions.  The results revealed that there are different subzones within the LTO zone with different reaction behaviors. In the second study, an LTO reaction conceptual scheme was developed based on the elemental studies.  In the third study, a multiple subzone LTO reaction model was created, suitable for use in thermal reactive reservoir simulators.  Based on the fourth study, LTO region was divided into two temperature subintervals with contrary reactive behaviors based on the moisture contents of the heavy oil samples.  The results of the research provide overall insight about the LTO region, its subranges, major products within each subranges, and how to model it.  This equips the ISC process the flexibility of controlling the temperature or water content to produce value-added LTO residues to sustain the combustion front.  For instance if more heat is needed to keep the combustion front propagating, the temperature can be controlled in subzone that produce LTO residues with higher heating values or if air requirement is a concern temperature or water content can be controlled to produce residues with higher C/H ratios.


identifier: McLean, R. I. (1969). "Most effectual remedy": temperance and prohibition in Alberta (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/19778

format:
161 leaves ; 30 cm.
application/pdf

subject:
HV 5091 M22 1969
Prohibition - Alberta
Alberta - Social conditions
Alberta - Politics and government
Temperance

abstract: Bibliography: p. 152-161.

abstract: Canadian historiography has witnessed a healthy interest in social history during the past two decades. A great deal has been written about the rise of progressivism; A. R. Allen has opened wide the study of the Social Gospel movement in Canada; and Catherine L. Cleverdon and Mary Q. Innis have examined militant feminism. In addition, historians such as W. L. Morton, L. G. Thomas and Paul F. Sharp have discussed prohibition as one of the general reform movements of the early twentieth century that enjoyed the backing of the farm community. But prohibitionism has been generally treated as a relatively isolated reform movement which, for a brief time, happened to run parallel to, but was not actually a part of, the main stream of agrarian unrest. No systematic attempt has been made to show the direct link between other agrarian reactions to industrialism and urbanism, and the nationwide victory of prohibition during the second decade of this century. Moreover, there has been no clear statement of the fact that the victory of the Alberta prohibitionist forces at the polls on July 21, 1915 was the prelude not only to the electoral victory of the United Farmers of Alberta, but also to the political triumphs of the entire Canadian progressive movement. The purpose of this study, then, is to describe and account for the success of one of the most striking reform crusades that the nation has ever experienced, the temperance and prohibition movement in the Province of Alberta, and to examine the relationship between the prohibition cause and the atmosphere of reform present from 1907 to 1915 which has been generally subsumed under the label of agrarianism or progressivism. The last three-quarters of the nineteenth century witnessed the expansion of temperance and prohibition agitation, spearheaded by evangelical Protestantism, which saw its first major political success in the enactment of the Dunkin Act in 1864, and culminated in the prohibitory law incorporated in the North-West Territories Act, 1875 and the Scott Act of 1878 . Yet the nineteenth century movement, robbed of its economic validity by the return of good times, was defeated in the National Plebiscite of 1898. Prohibitionism as a force in Canada was at its nadir. But the rise of industrialism and urbanism set off social and economic counter-forces such as the Social Gospel movement, militant feminism and agrarianism. These movements, which were qualitatively different from their counterparts in the previous century, combined in Alberta to create a reform environment conducive to the evolution of prohibitionism as the panacea of contemporary socio-economic problems. Finally, the advent of World War I, which temporarily encouraged the subordination of individual liberties to the prosecution of the war effort, supplied the ideal psychological momentum for a massive campaign culminating in the 1915 Prohibition Referendum. As a result of that campaign, in 1915 Alberta became the first province to impose prohibition by a popular vote. The Province thus set the pace of social reform for the rest of the country; and , equally as significant, was the first to allow the people to express their collective will by means of direct legislation, the key factor in the progressives' drive to power. In fact, the political experience gained by the reformers in the battle for prohibition, together with the socio-economic class unity generated by contemporary circumstances, were soon to be turned, with telling effect, against old line politicians, political parties and governments, and culminated in the U.F.O. political victory in 1919, the electoral triumph of the U.F.A. in 1921, and the creation of the National Progressive Party.


identifier: Rajith, E. W. W. K. H. (2018). An experimental study on time-dependent behaviour of reconstituted clayey soils in 1D and triaxial compression. University of Calgary, Calgary, AB doi:10.11575/PRISM/33070

creator: Wickrama Kaluthota Hewage, Rajitha Eranga Wickramage

contributor:
Wong, Ron
Hayley, Jocelyn
Wan, Richard
Maini, Brij
Siddiqua, Sumi

subject: Engineering--Civil

abstract:
Accurate assessment of the safe performance of geotechnical structures against the time-dependent strength-deformation behaviour of soils relies on the knowledge acquired from laboratory and field experiments. Therefore, the focus of this research is to experimentally investigate the role of stress history, soil properties and loading system in the time-dependent strength-deformation behaviour of reconstituted clayey soils.
The experimental program consists of oedometer and triaxial compression tests on compacted lightly overconsolidated natural soils (high plastic Regina clay and low plastic Calgary till) as well as on artificial soil mixtures made by mixing pure kaolinite or bentonite with crushed Opal, silt or Calgary till.
Results of multiple-stage oedometer tests show that vertical stress level, clay content, size of the coarse particle, coarse particle type, clay type, and liquid limit affect the secondary compression behaviour of oils.  Results of constant rate of strain tests in oedometer and triaxial conditions show that at a given strain level, faster strain rates always result in a higher effective vertical stress or deviatoric stress value for high plastic Regina clay. Thus, the behaviour is considered as isotach. However, low plastic Calgary till shows isotach behaviour only under overconsolidated or unsaturated conditions. Further, strain rate effect on shear strength is found to increase with liquid limit, OCR value, matric suction, and absolute magnitude of strain rate.
In both oedometer and triaxial conditions, the ratio between relaxed stress at any time and the stress level at the beginning of the relaxation test is found to be linear with the logarithm of time after an initial time period. These linear segments are approximately parallel for stress relaxation tests conducted within or closer to the NC region/post-peak region of the stress-strain curve a soil. The gradient of these parallel segments is found to be independent of the soil structure and confining pressure but depends on the test condition and degree of saturation. Intercepts of fitted lines to these parallel segments can be used to correlate strain rate, stress relaxation behaviour and pre-consolidation pressure.
Keywords: Time-dependent, secondary compression, stress relaxation, shear strength, isotach


identifier: Crozier, S. D. (1985). The Life roles of teachers (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/18017

title: The Life roles of teachers

format:
xviii, 319 leaves : ill. ; 30 cm.
application/pdf

subject:
LB 2832 C76 1987
Teacher morale
Teaching satisfaction
Catholic teachers - Alberta - Calgary
Teachers - Alberta - Calgary

abstract: Bibliography: p. 280-303.


identifier: Griebel, C. E. (1995). The effect of icon content on children's response times (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/18005

format:
xi, 64 leaves ; 30 cm.
application/pdf

subject: LB 1028.43 G75 1995

subject: Education - Data processing

subject: Computers and children

subject: Graphical user interfaces (Computer systems)

subject: Reaction time

subject: Perceptual-motor learning

subject: Human-computer interaction

subject: Learning, Psychology of

abstract: Bibliography: p. 48-51.


identifier: Weir, C. (2013). Constructing and Tabulating Dihedral Function Fields (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25427

subject:
Mathematics
Mathematics
number theory
function fields
Galois theory
tabulation
dihedral
Kummer theory
Class field theory

abstract:
We present and implement algorithms for constructing and tabulating odd prime
degree l dihedral extensions of a rational function field k_0(x), where k_0 is a perfect field with characteristic not dividing 2l. We begin with a class field theoretic construction algorithm when k0 is a finite field. We also describe modifications to this algorithm to improve the run time of its implementation. Subsequently, we introduce a Kummer theoretic algorithm for constructing dihedral function fields with prescribed ramification and fixed quadratic resolvent field, when k0 is a perfect field and not necessarily finite. We give a detailed description of this Kummer theoretic approach when k0, or a quadratic extension thereof, contains the l-th roots of unity. Avoiding the case when k0 is infinite and the quadratic resolvent field is a constant  field extension of k0(x), we show that our Kummer theoretic algorithm constructs all degree l dihedral extensions of k0(x) with prescribed ramification. This algorithm is based on the proof of our main theorem, which gives an exact count of such fields. When k0 is a finite field, we implement and experimentally compare the run times of the class field theoretic and Kummer theoretic construction algorithms. We find that the Kummer theoretic approach performs better in all cases, and hence we use it later in our tabulation method. Lastly, utilizing the automorphism group of Fq(x), we present a tabulation algorithm to construct all degree l dihedral extensions of Fq(x) up to a given discriminant bound, and we present tabulation data. This data is then compared to known
asymptotic predictions, and we find that these estimates over-count the number of
such fields. We also give a formula for the number of degree l dihedral extensions of
Fq(x) when q is plus or minus  1 mod 2l, with discriminant divisors of minimum possible degree.


identifier: Martell, H. E. (1991). Applications of strapdown inertial systems in curvature detection problems (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/18281

format:
xv, 101 leaves : ill. ; 30 cm.
application/pdf

subject:
TL 588.5 M37 1991
Inertial navigation systems

abstract: Bibliography: p. 99-101.


identifier: Makkawi, S. O. S. (2018). Development of a Competency-Based "Boot Camp" Curriculum for the PGY-1 Neurology Residents (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/31880

publisher:
Cumming School of Medicine
Graduate Studies
University of Calgary
Calgary

contributor:
Cooke, Lara J.
Yeung, Michael M. C.
Harrison, Alexandra C. M.

subject:
boot camp
Neurology
residents
competency-based
Medical Education
needs assessment
curriculum development
Biophysics--Medical

abstract: Background: Boot camp training early in the curriculum has the potential to enhance residents’ confidence, competency, and stress hardiness in managing their patients. Goal: To develop a competency-based boot camp curriculum for PGY-1 neurology residents based on a targeted needs assessment. Methods: A multi-modal approach has been used to assess both self-reported and objective learning needs including: ITER review, an online survey of the key stakeholders, and a consensus meeting at the University of Calgary. Results: This study highlighted the need for the curriculum and the homogeneity between the self-reported learning needs by the learners and their observers as well as the objectively measured needs. Small group discussion, problem-based learning, simulation, and standardized patient encounter were the preferred methods of teaching. The preferred program length was three days. Conclusion: Based on the results of this multi-modal targeted needs assessment, a neurology boot camp curriculum is needed, and a competency-based curriculum can be developed.


identifier: de Bruyn, E. P. (1978). Origins of the French non-intervention policy in the Spanish Civil War (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/14279

format:
v, 205 leaves ; 30 cm.
application/pdf

subject: DC 369 D43 1978 Microfiche

subject: France - Politics and government - 20th century

subject: France - Foreign relations - Spain

subject: Spain - History - Civil War, 1936-1939

abstract: Bibliography: p. 194-205.


identifier: Eshraghi Boroojeni, M. (2008). 3D mesh watermarking (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/2561

title: 3D mesh watermarking

format:
x, 132 leaves : ill. ; 30 cm.
application/pdf

abstract: Bibliography: p. 114-126

abstract: Some pages are in colour

abstract: 3D watermarking methods embed a hidden watermark into 3D models for the main purpose of copyright protection and content authentication. The growing use of 3D models in various fields of industry, such as games, animation, virtual reality, and cultural heritage, along with the possibility of easy reproduction and distribution, has drawn the attention to copyright protection of 3D models. This thesis develops a watermarking framework for polygonal meshes that attains robustness against a list of accessible attacks. A watermark is embedded into the geometry of a mesh by perturbing the mesh vertices along t heir tangent space to achieve invisibility. The mesh capacity for the embedded watermark can be as high as the number of its vertices, which is usually a fairly large number. To sort out the issue of robustness, a list of the most accessible attacks through common graphics tools is proposed that includes affine transformations, geometrical deformations, topological attacks, subdivision attacks, vertex reordering, and combination of these attacks. To achieve robustness against the proposed list of attacks, a set of attack recovery techniques are developed. Geometric segmentation is proposed to recover the inserted watermark against geometrical deformations and topological attacks. Geometric indexing is performed to resist vertex reordering attacks. Robustness against affine transformations is achieved through a coordinate normalization scheme. Finally, a resolution normalization scheme is proposed to resist the subdivision attacks.


identifier: Ridley, C. M. (2018). Microbial Ecology of Subsurface Oil Sands Deposits in Northern Alberta, Canada (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/32803

publisher:
Graduate Studies
Science
University of Calgary
Calgary

contributor:
Gieg, Lisa Marie
Voordouw, Gerrit
Strous, Marc
Biddle, Jennifer
Hubert, Casey R. J.

subject: microbial ecology

subject: microbial community analysis

subject: petroleum microbiology

subject: oil sands microbiology

subject: subsurface microbiology

subject: Biology

subject: Microbiology

subject: Biology--Molecular

subject: Engineering--Environmental

abstract: The subsurface Athabasca Oil Sands in northern Alberta, Canada, is an important yet understudied microbial habitat. Over geological time, progressive biodegradation of low molecular weight hydrocarbons by indigenous microorganisms has resulted in an enrichment of high molecular weight hydrocarbons known as bitumen. This is an extreme environment characterized by low water and nutrient availability, thereby resulting in low microbial biomass. The objective of this study was to characterize the microbial ecology of this unique ecosystem, which could ultimately provide a basis for the development of microbially enhanced oil recovery (MEOR) technologies. To that end, pristine core samples were collected from 220 to 320 meters below the surface during 3 annual field trips. Due to the high bitumen and low biomass content of the core samples, extensive method development and validation was performed to identify a robust molecular biological workflow that would allow for consistently successful extraction, amplification and sequencing of genomic DNA from core samples. This molecular biological method was then used to characterize the prokaryotic and eukaryotic microbial communities of the subsurface oil sands through 16S and 18S rRNA gene sequencing. Results revealed a surprising predominance of aerobic and facultative microorganisms in an environment that is traditionally considered anoxic. The genera Pseudomonas, Acinetobacter and Fontibacter were the dominant prokaryotes in all core samples (average relative sequence abundance >5%). Methanoculleus was the only methanogen detected at an average relative sequence abundance >1%. Fungi from the family Trichocomaceae and the order Hypocreales were the prevailing Eukaryotes. Core sample incubations were used to determine the effects of atmosphere and temperature on microbial community succession. Microcosms were established under aerobic, microaerobic and anaerobic atmospheres at reservoir (8°C), mesophilic (33°C) and thermophilic (60°C) temperatures. Results indicate that the predominant community members remained similar to the controls; however, some microcosms incubated at 60°C experienced enrichment of thermophiles, including the genera Thermus, Geobacillus and Thermanaerothrix. Many of the dominant taxa observed in this study could have potential MEOR applications, including hydrocarbon degradation, biosurfactant production and methanogenesis. Thus, the information revealed in this study could be used as the basis for MEOR technologies.


identifier: Kumar, R. (2012). Process tomography of photon creation and annihilation operators (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/4997

format:
viii, 80 leaves : ill. ; 30 cm.
application/pdf

abstract: Bibliography: p. 77-80

abstract: The photon creation and annihilation operators are cornerstones of the quantum description of the electromagnetic field. They signify the isomorphism of the optical Hilbert space to that of the harmonic oscillator and the bosonic nature of photons. We perform complete experimental characterization (quantum process tomography) of these operators. By measuring, via homodyne detection, their effect on coherent states, we obtain their process tensor in the Fock basis, which explicitly shows the 'raising' and 'lowering' properties of these operators with respect to photon number states. To the best of our knowledge, this is the first experin1ental demonstration of complete tomography of trace-non-preserving quantum processes.  All output states are characterized through their corresponding Wigner functions. Results are also validated through theoretical modeling. Fuithermore, the photon addition and subtraction operations are characterized through the diagonal elements of the process tensors and are validated through theoretical generated data using Monte Carlo simulation.


identifier: Link, C. M. (2020). “We Are Bridging That Gap”: Insights from Indigenous Hospital Liaisons for Improving Health Care for Indigenous Patients in Alberta (Unpublished master's thesis). University of Calgary. Calgary, AB.

contributor:
Voyageur, Cora Jane
Ducey, Ariel
Barnabé, Cheryl Carmelle Marie

subject:
Indigenous Health
Health Care Experiences
Health Care Access
Strength-Based Research
Indigenous Studies
Canadian Health Care
Education--Health
Education--Social Sciences
Native American Studies
Sociology
Public Health

abstract: This thesis explores the insights of five Indigenous Hospital Liaisons working in Alberta Health Services hospitals to improve health care for Indigenous patients. Indigenous people in Canada often encounter difficulties and obstacles when accessing health care. Previous studies have described the negative experiences that many Indigenous people encounter within hospitals and other health care facilities. Limited research in Alberta prevents an understanding of context-specific barriers that may exist. Additionally, the insights of Indigenous Hospital Liaisons are a new area of research. These frontline employees work directly with Indigenous patients to help them navigate barriers and ultimately improve their hospital experiences. This research uses a strength-based approach to highlight the dedication that Indigenous Hospital Liaisons have to Indigenous patients and provide a more positive image of Indigenous people. In addition to pointing out barriers they believe are commonly encountered by Indigenous people in Alberta, the Indigenous Hospital Liaisons in this research highlight existing resources that can benefit Indigenous patients. They also share their suggestions for changes that may improve hospital experiences for Indigenous people. The findings of this research provide a welcome contrast to the mass of negative and often deficit-based research that dominates the Indigenous health literature and suggest a more positive and optimistic view of the future of health care for Indigenous people in Alberta. Specific recommendations are provided based upon the findings and suggestions for future research involving Indigenous Hospital Liaisons are discussed.


identifier: Ishola, G. (1985). Experimental studies of the behaviour of tar sands fragments in steady streams of the products of combustion of lean CH4-air or H2-air (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/11800

format:
xvi, 100 leaves : ill. ; 30 cm.
application/pdf

subject:
TN 871 I64 1985
Thermal oil recovery
Gas, Natural - Thermal properties
Combustion research
Oil sands

abstract: Bibliography: p. 71-79.


identifier: Griffith, L. A. (1981). Depositional environment and conglomerate diagenesis of the Cardium formation, Ferrier Field, Alberta (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/24117

format:
x, 132 leaves : ill., maps ; 30 cm.
application/pdf

subject: QE 471.2 G74 1983 Fiche

subject: Sediments (Geology) - Alberta - Ferrier Field

subject: Conglomerate - Alberta - Ferrier Field

subject: Geology - Alberta - Ferrier Field

subject: Diagenesis - Alberta - Ferrier Field

abstract: Bibliography: p. 93-98.


identifier: Graham, B. T. (1990). SECD: the design and verification of a functional microprocessor (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/21382

format:
ix, 154 leaves : ill. ; 30 cm.
application/pdf

subject: TK 7874 G69 1990

subject: Integrated circuits - Design and construction

abstract: Bibliography: p. 149-154.


identifier: Drobot, C. A. (1988). The Relationship between educational beliefs and achievement in nursing education (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/19274

format:
xiii, 161 leaves ; 30 cm.
application/pdf

subject:
RT 71 D76 1988
Nursing students - Attitudes

abstract: Bibliography: p. 124-134.


identifier: Akhtar, S. (1983). A Defence of value-free social inquiry (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/21313

title: A Defence of value-free social inquiry

format:
vii, 93 leaves ; 30 cm.
application/pdf

subject:
H 61 A396 1986
Social sciences - Philosophy
Social sciences - Methodology
Weber, Max, 1864-1920

abstract: Bibliography: p. 91-93.


identifier: Krishnan, S. (1999). Adaptive signal processing techniques for analysis of knee joint vibroarthrographic signals (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/23830

format:
xxix, 233 leaves, ill. ; 30 cm.
application/pdf

subject:
QM131 .K755 1999
Knee - Wounds and injuries
Knee - Physiology
Signal processing - Digital techniques
Diagnosis - Data processing
Biomedical engineering

abstract: Bibliography: p. 214-233


identifier: Lei, L. (2014). Downhole Weight on Bit Prediction with Analytical Model and Finite Element Method (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25743

contributor:
Martinuzzi, Robert
Hareland, Geir

subject:
Engineering--Petroleum
Downhole Weight on Bit
Analytical Model
Finite Element Method

abstract:
Horizontal drilling is an innovative technology applied for exploiting unconventional resources in North-America and around the world.
To acquire better drilling performance, weight on bit (WOB) needs to be accurate and monitored. However, the weight on bit recorded on the surface panel is most often incorrect because wellbore friction along the drillstring is not considered. Drillstring force modeling computer simulation can be utilized to economically determine the actual WOB value. In this thesis, two drillstring force models are programmed and compared: an analytical model and a finite element method (FEM). In conclusion the analytical model computes faster, but FEM is more accurate.
Simulations are performed to verify and compare both methods, where friction factors and WOB are calculated for a horizontal well in Western Canada, in a depth interval from 2500m to 3800m. The results from both methods are comparable to results obtained from measured downhole WOB (DOWB).


identifier: Kerr, E. N. (1994). Attentional capacity in patients with systemic lupus erythematosus (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/11256

format:
xi, 152 leaves ; 30 cm.
application/pdf

subject:
RC 924.5 L85 K47 1994
Systemic lupus erythematosus
Attention - Testing

abstract: Bibliography: p. 115-128.


identifier: Nahas, M. (1996). Developmental and genetic analysis of primary sex determination in the mouse (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/24118

format:
xv, 91 leaves ; 30 cm.
application/pdf

subject:
QL 738.5 N25 1996
Mice - Anatomy
Sex determination, Genetic
Sex differentiation

abstract: Bibliography: p.


identifier: Poitras, L. (2003). Towards a sustainable approach to wine tourism development in the Oliver, British Columbia region (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/13207

format:
vii, 143 leaves : ill. ; 30 cm.
application/pdf

abstract: Bibliography: p. 125-128

abstract: The wine industry in the South Okanagan has experienced considerable growth and change over the past decade. With an ideal climate and topography for grape growing, the Oliver area has welcomed many new wineries, and celebrated the increasing success of its established vineyards and experienced wine makers. The opportunity for the development of tourism based on wine has only recently been pursued. Recognizing the potential benefits of wine tourism for both the wineries, and the Oliver community, the Town of Oliver has initiated a campaign to promote itself as the Wme Capital of Canada. There are currently 13 wineries in the Oliver area, many of which are beginning to invest in additional facilities and services that cater to tourists. The development of wine tourism is supported by recent forces and trends in tourism, which reveal an increasing demand for forms of cultural tourism, including special interest and recreation vacations, agri-tourism, and activities such as visits to historic sites. This :MDP strives to assess the planning implications of wine tourism development in the Oliver area. A thorough review of local documents, visitation to the area, key informant interviews, and a review of literature focused on tourism planning, sustainable tourism, and wine tourism allow for discussion of the possibility of sustainable wine tourism development at the local level. The result is a compilation of the perceived issues surrounding tourism development in Oliver, and a set of guiding actions. These guidelines outline how the Town can best proceed in its development as a wine tourism destination, and how principles of Sustainable Tourism can be incorporated into wine tourism planning. In general, this :MDP reveals that although the Oliver community is well-positioned to become a wine tourism destination, many issues need to be addressed to ensure tourism development is sustainable. This implies balancing the demands of tourists with the needs of locals, while ensuring preservation of the town's natural and cultural environments.


identifier: Biro, P. A. (2003). Population consequences of behaviourally-mediated tradeoffs between growth and mortality in age-0 rainbow trout (oncorhynchus mykiss) cohorts (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/15816

format:
xii, 160 leaves : ill. ; 30 cm.
application/pdf

subject: AC1 .T484 2003 B546

abstract: Bibliography: p. 152-160


identifier: Carlisle, R. E. (2022). Tracking and Analysis of Ecological Human Walking With Wearable Sensors (Unpublished master's thesis). University of Calgary, Calgary, AB.

contributor:
Kuo, Arthur
Condliffe, Elizabeth
Manocha, Ranita
Bertram, John
Pfau, Thilo

subject: Engineering--Biomedical

abstract: Gait studies performed in a laboratory setting might not fully represent real-life walking. Walking under constrained conditions, such as fixed speed or distance, can alter a person's gait. Humans often walk relatively short bouts that lack a steady speed, and longer bouts of varying movement vigor, meaning speed depends on the urgency of the task and who is performing it. Real world environments also contain diverse terrains that must be traversed. Thus, human walking in free-living conditions includes a wide range of gait parameters that may not be well-represented in laboratory studies. This project has three main parts. In the first, we quantify gait characteristics such as stride length, speed, and height, in young, healthy subjects (N = 11) in their everyday lives for seven days. Subjects take the majority of steps as part of short, variable walking bouts, and though they have a preferred speed, their actual stride speed is highly dependent on task. The second section expands the study to include a group of older adults (N = 14) for an investigation of how age affects gait. The older subjects have a similar preferred walking speed to the younger subjects, but also take more strides at a slower speed. For both groups, stride length increases with speed in a similar relationship to that studied in a lab. Finally, we show that speeds and durations of short walking bouts can be explained by a general objective for energy and time, defined as the total work or energy expended to reach destination, plus a subjective cost proportional to bout duration. This objective is both applied to a model and tested on humans (N = 10). Speed trajectories for short walking bouts resemble an inverted U, where shorter bouts only briefly peak in speed, in amounts increasing with bout distance. Speeds of any distance increase with an individual's subjective cost of time, which may differ between individuals, but in a systematic and scalable way. The Energy-Time cost for a task quantitatively predicts transient, steady, and vigor-related aspects of movement.


identifier: Burkart, M. (1998). Inventing the world: A public observatory for Mauna Kea (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/24344

format:
vii, 55 leaves ; ill. ; 30 cm.
application/pdf

subject:
NA2500 .B85 1997
Architecture - Philosophy
Astronomical observatories

abstract: Bibliography: p. 40-42


identifier: Franchuk, S. (2000). Auroral field-aligned currents observed by OEDIPUS-C (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/15415

format:
ix, 107 leaves : ill. ; 30 cm.
application/pdf

subject:
QC971.7 .A1 F73 2000
Auroras - Observations
Electric fields - Measurement
Cosmic magnetic fields - Measurement

abstract: Bibliography: p. 82-87.


identifier: Haghighat, P. (2014). Effect of Temperature on Performance of Vapex Process for Heavy Oil (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25811

contributor:
Maini, Brij
Abedi, Jalal

subject:
Engineering--Petroleum
Vapex
gravity drainage

abstract:
Incorporating some heat injection along with the solvent injection appears to be the most viable option for improving the oil drainage rate of Vapex (Vapor Extraction) in extra-heavy oil formations. This study was aimed at quantifying the upper limit of oil rates achievable with heated solvent injection. Results of the performed research can also be used to assess the applicability of Vapex to naturally warm reservoirs and reservoirs with mobile oil in place.
The experimental phase of current research involved conducting Vapex experiments in a high-pressure physical model, packed with 250 Darcy sand, saturated with Athabasca bitumen (Mackay River) using propane as the solvent. The physical model was pre-heated to 40, 50 and 60 °C and propane was injected within 0.817 to 1.55 MPa pressure to investigate the effect of temperature elevation and injection pressure on Vapex performance.
Due to the mobility of the original oil in place at elevated temperatures, the total rate of oil production is controlled by two mechanisms: 1. solvent dissolution and oil mobilization at the boundaries of the vapor chamber 2. free fall gravity drainage of undiluted oil within the sand matrix beyond the solvent penetration zone. To evaluate warm Vapex performance under different operating conditions, the contribution of free fall gravity drainage to total recovery was experimentally and numerically determined.
Experimental results were compared against Vapex analytical models and a reported empirical correlation. The empirical correlation was modified based on the findings of the current experimental study by incorporating the effect of live oil viscosity into the original correlation.
The experimental results of warm Vapex tests were numerically simulated with a commercial compositional simulator, Computer Modelling Group’s (CMG) GEM. Bitumen characterization and thermo physical modeling of bitumen/propane system were performed as part of the numerical study. The developed simulation model verified by the experimental production data was used to extend the study to wider ranges of temperature.
Results of the current study indicates that elevating the reservoir temperature to 50oC without increasing the injection pressure, can improve production rate only by 70% and reservoir temperature elevation to above 60 oC is required to achieve more impressive rate increase of nearly 200% when Vapex is performed in heavy oil reservoirs.

abstract: 2 years


identifier: Juschka, B. E. (1984). Toward identification of artistically gifted children (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/11059

subject:
LC 3993.265 J86 1986
Gifted children - Identification
Gifted children - Education - Art
Children as artists

abstract: Bibliography: p. 191-202.


identifier: Omer, M. (2019). Synergistic Combination of Microwaves and Acoustic Signals: Towards Improved Breast Imaging (Unpublished doctoral thesis). University of Calgary, Calgary, AB.

contributor:
Fear, Elise C.
Potter, Michael E.
Sesay, Abu B.
Ferguson, Robert J.
Yu, Alfred C. H.

subject: Dual modality breast cancer imaging

subject: Microwave and ultrasound-based breast imaging

subject: Breast treatment monitoring

subject: Numerical breast models

subject: Breast models repository

subject: Engineering--Biomedical

subject: Engineering--Electronics and Electrical

abstract: Microwave-based breast imaging techniques offer the convenience of frequently-repeated scans involving no breast compression, non-ionizing radiation, inexpensive scan costs, sensitivity to water content and low-complexity 3D image reconstruction. These benefits are well-suited for its application in breast health monitoring and treatment surveillance for which there is no current established approach. However, limited imaging resolution and target localization accuracy necessitate improvements in image quality for clinical applications. The integration of prior structural information has been seen to benefit microwave-based breast imaging techniques, including microwave tomography (MWT) and microwave radar (MWR)-based approaches. The sources of this structural prior explored in the literature include alternate imaging modalities such as computed tomography (CT) and magnetic resonance imaging (MRI). The ultrasound (US) signals with their short wavelength, low loss and small footprint may also provide this opportunity. The aim of this work is to investigate the possibility of extracting prior information from US signals and integrating this information into radar-based microwave image reconstructions. The synergistic combination of these two modalities improves the imaging focus, resolution, target detection and localization accuracy. In addition, the integration of structural information provides important contextual information for results interpretation as well as enhances the robustness of the method to the variations in breast shape, size, density, number of tumour inclusions and their locations. To support this development process, methods of constructing and generating a repository of realistic numerical breast models have also been presented. These models offer flexibility and reconfigurability to meet varying requirements of developing imaging technologies. They are applied to develop the proposed dual-modality imaging technology, verify its performance and compare it with the state-of-the-art MWR imaging approach.


identifier: de Castro, D. M. (2010). Towards automatic generation of anti-virus emulators (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/3923

format:
vii, 119 leaves : ill. ; 30 cm.
application/pdf

abstract:
Bibliography: p. 89-97
A few pages are in colour.


identifier: Etminan, S. R. (2014). Improved Experimental and Mathematical Techniques for Measurement of Solvent Gas Diffusivity in Heavy Oils (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/26477

contributor:
Maini, Brij B.
Chen, Zhangxing (John)

subject:
Engineering
Engineering--Petroleum
Diffusion coefficient
Solvent Based Techniques
Reservoir Engineering
Heavy Oil
measurement

abstract:
Efficient recovery of heavy oil and bitumen is still very challenging and remains an issue of ongoing research all around the world. Thermal recovery methods, which rely on heat for viscosity reduction, are generally accepted as viable and several steam based projects have been successful, especially in Canada. Using light hydrocarbon solvents can provide similar viscosity reduction and is potentially more efficient in so-called challenging reservoirs where thermal methods do not work.  In comparison with thermal methods, solvent based processes are more environmentally friendly and require no fresh water resources.

The solvent based processes rely on molecular diffusion for in situ mixing of the solvent with the oil and generally provide much slower rates of oil production than the thermal processes. This is so because the molecular diffusivity is often much smaller than the thermal diffusivity. However, the published information on experimentally determined diffusivity of gaseous solvents in heavy oil and bitumen is very scarce. Therefore, accurate measurement of molecular diffusion coefficient is necessary for reliable design of solvent-based recovery processes in heavy oil reservoirs.

There is no well-established and universally applicable technique for measuring molecular diffusion coefficient. Measurements of mass transfer characteristic are often more difficult due to difficulties in measuring point values of concentration and other issues which complicate this transport process such as phase equilibrium, effect of convective transport and having a mixture rather than a pure fluid. These issues make it necessary to employ several simplifying assumptions in mathematical modeling and interpreting the experiments to determine the diffusivity.

The focus of this thesis is on improvement of experimental and mathematical techniques for measurement of unknown mass transfer parameters, specifically molecular diffusion coefficient, in dissolution of gaseous solvents into bitumen in binary systems. This is accomplished through identification of different phenomena or states occurring during the diffusion of gaseous solvents into bitumen and accordingly, development of improved experimental technique, mathematical models and computational algorithms for different cases. Diffusion coefficient of methane, carbon dioxide and propane were estimated as gaseous solvents diffusing into bitumen and it was shown that the estimated parameters generally agree with those reported in the literature.

The outcome of this study is directly relevant to the in situ recovery of heavy oils and bitumen; however, the proposed techniques could also be applied to other applications for determination of diffusivity of gases dissolving into non-volatile liquid systems.


identifier: Chen, P. (2016). Towards an Improved Hardware Implementation of a Tone Mapping Algorithm for Wide Dynamic Range Image Display (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/28478

contributor:
Yadid-Pecht, Orly
Murari, Kartikeya
Gruev, Viktor
Mintchev, Martin

subject: Engineering--Electronics and Electrical

subject: Wide dynamic range (WDR) imaging

subject: Complementary metal oxide semiconductor (CMOS)

subject: Tone mapping algorithm

subject: Current mode circuit

subject: Analog implementation

abstract: Tone mapping algorithms are utilized to adapt wide dynamic range (WDR) images to limited dynamic range (LDR) displays while maintaining the images’ details. This thesis presents an analog current mode implementation that will realize an exponent-based tone mapping algorithm, including both global and local operators in the imager array periphery. It also presents a one-pass automatic exponent-based tone mapping algorithm and its associated current mode circuit implementation that was designed to avoid manual tuning needed in a previous implementation. Both of these two implementations, designed in 0.35 µm complementary metal oxide semiconductor (CMOS) technology, were simulated and tested in order to evaluate their quality. Objective assessments and detailed comparisons show that the low power and low area features of these hardware implementations make them good choices for low power and low area WDR display applications.


identifier: Scullion, K. (2015). Effect of Cannabinoids and Stress on Motor Maps and Behaviour (Unpublished doctoral thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25792

subject:
Neuroscience
cannabinoids
stress
motor maps

abstract: Motor maps exhibit experience dependent changes and are therefore sensitive to the type and amount of neurotransmitters present in the motor cortex and changes in motor map expression often results in impairments of skilled behaviour. Endocannabinoids have been shown to affect spinal locomotion and stress has been shown to affect spontaneous locomotion therefore, the effect of cannabinoid signaling and stress on motor map expression and behaviour was examined. The first study determined that cannabinoid 1 receptor (CB1R) signaling dampened motor map expression and that both anandamide (AEA) and 2-arachidonoylglycerol (2-AG) contributed to this effect. Activation of CB1R signaling did not affect skilled reaching task performance. However, a lack of cannabinoid signaling resulted in impairment on performing the reaching motion. The second study characterized acute and repeated stress effects on motor map expression. Acute stress did not alter map expression while repeated stress decreased forelimb map expression and resulted in skilled motor behaviour deficits. It was then established that 2-AG mediates the stress effects seen on motor map expression. The last study observed the effects of delta-9-tetrahydrocannabinol (THC) on motor map expression as well as skilled and unskilled behaviour. It was discovered that THC dose dependently affected motor map expression in that a low dose of THC increased map expression while higher doses decreased forelimb map expression. THC decreased the number of reach attempts made in one 15 minute reach training session but did not impair the execution of reaching behaviour. Unskilled behaviour was assessed using the bar task, rotorod, horizontal ladder rung walking task and the open field test. No differences were found between rats that received THC and rats that received DMSO on the rotorod, rung walking task and the open field test. The highest dose of THC used (2.5 mg/kg) resulted in a longer latency for removal of the forepaws from the bar in the bar task. This research is important and necessary due to increasing usage of cannabinoids for recreation as well as to treat neurological illness. The present findings suggest that endocannabinoids and repeated stress via 2-AG have a dampening effect on motor map expression.