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2020 — Development of a System of MEA Solutions Activated by Novel Poyamines for Natural Gas Sweetening Mass Transfer in Absorber and Desorber ColumnsRésumé
This study focused on finding new and efficient activators to be blended with methyldiethanolamine (MDEA) for natural gas processing. Polyamines were highlighted in the open literature to have high CO2 loading as well as high absorption rate. As branched polyethyleneimine (PEI-B) (MW ≈ 800 with almost 16 amino groups) showed a superior performance in adsorption applications for capturing CO2, it was important to test its performance in absorption process. Tetraethylenepentamine (TEPA) is another polyamine (five amino groups) that was indicated in both adsorption and absorption as an excellent solvent; therefore, it was included in this study. PEI-B and TEPA were … Lire la suite
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2013 — Catalytic Production of Furfural by the Subcritical Hydrothermal Gasification of Flax StrawRésumé
Developing new sources of energy that can mitigate greenhouse gas (GHG) emissions has generated a strong research interest in the past two decades. Renewable sources of energy have become strong candidates for replacing the conventional resources in order to ameliorate the high level of pollution caused by the use of conventional fossil fuels. Biomass is a type of renewable resource that is considered to be carbon neutral when used in producing fuels and chemicals. Flax straw is an example of biomass that accumulates in Canada in high amounts. It is difficult to dispose of because it does not decompose easily … Lire la suite
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2014 — Application of Investment Theory to Sport Consumers: Predicting Intention to Continue or Reduce CommitmentRésumé
The purpose of the present investigation is to use the Investment Model to better understand the intention to continue or reduce commitment to a sports team. The study will examine the nature of the relationships between satisfaction, investment, quality of alternatives on commitment and the subsequent intention to continue in the relationship by taking on a comparative analysis of major works, and applying Investment theory to sport consumers. Development of a newly proposed Sport Commitment Model will provide insight into the underlying psychological processes with regards to the intention to continue or reduce commitment to a professional sports team, the … Lire la suite
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2020 — An Examination of the ‘Firearms’ Recovered by the Municipal Police Services of the Canadian Prairie ProvincesRésumé
This study examines the items labeled as ‘firearms’ recovered by the Edmonton, Regina, and Saskatoon Police Services (the EPS, RPS and SPS, respectively) between 2010 and 2018; summary data was also provided by the Winnipeg Police Service (WPS). The analyses revealed that these police services all experienced annual increases in the recoveries of items they labeled as firearms. A key finding was that up to one-third of the items labeled as firearms recovered by these agencies were non-firearms such as air guns, firearm components, as well as other miscellaneous items such as bear spray or ammunition. Between 2010 and 2018, … Lire la suite
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2014 — Production of 3-Methoxy,1,2,Propanediol and Hydroxyacetone by the Subcritical Hydrothermal Liquefaction of GlycerolRésumé
Research on the use of crude glycerol, a byproduct of bio-diesel production has received strong interest within the last several years. The objective has been to add value to or utilize this byproduct, as a measure to remove one of the major obstacles encountered in the production and widespread application of bio-diesel. The present study was focused on the hydrothermal liquefaction of glycerol in subcritical water conditions for the production of 3-methoxy,1,2,propanediol and hydroxyacetone. The production of 3- methoxy, 1,2,propanediol was selected to be the major objective of this study because of its value as well as its importance in … Lire la suite
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2020 — Heat Duty, Cyclic Capacity and Rate of Desorption for MDEA Activated by Novel Polyamines for Natural Gas SweeteningRésumé
This study focused on finding suitable activators to be blended with aqueous MDEA for use in natural gas sweetening. Polyamines are promising amines for capture of CO2 efficiently as they contain more than one amino group in their structures. Polyethylenimine (PEI-B) and Tetraethylenepentamine (TEPA) were chosen and screened to investigate their performance as efficient activators for MDEA. PEI-B and TEPA were compared with piperazine (PZ) which is currently used as the standard activator of MDEA. The screening experiments were carried out using a simple absorption and desorption setup at atmospheric pressure. This setup was validated using 5 M MEA with … Lire la suite
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2016 — A Knowledge Acquisition System for Price Change RulesRésumé
Knowledge acquisition is the process of extracting and organizing knowledge from one source and storing it in some other location such as a knowledge base. Our research developed a new approach to knowledge acquisition concerning motor fuel pricing and implemented it in the Knowledge Acquisition System for Price ChangE Rules (KASPER) software system. Store managers want to understand the pricing strategies at competing stores or brands. The main goal of our research is to provide decision rules with high predictive accuracy on unseen data that may explain why a store or brand made a price change in a speci c … Lire la suite
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2018 — Glimpses of Pashtunwali in Hosseini's The Kite Runner, A Thousand Splendid Suns, Hashimi's A House Without Windows and Ackerman's Green on BlueRésumé
Writers and scholars have used a variety of approaches to understand novels written in English about Afghanistan. One approach that most of the writers have used is the sociocultural approach. My approach is quite similar to other researchers but my framework is different. My work focuses on an unwritten code of life, Pashtunwali, which the Pashtuns of Afghanistan have been practicing for centuries. This code strictly guides the lives of Pashtun people living in Afghanistan and North-West Pakistan. By using the framework of Pashtunwali, this thesis provides a new perspective and understanding of Hosseini, Hashimi, and Ackerman’s novels. It not … Lire la suite
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2025 — Dynamic user motion prediction using advanced Kalman filtering in 5G mmWave systemsRésumé
Achieving reliable communication in high-data-rate applications and densely populated environments remains a significant challenge for next-generation wireless networks. Millimeterwave (mmWave) technology offers substantial bandwidth and data rate advantages but necessitates precise beam steering to maintain connectivity. The dynamic nature of mobile environments, coupled with diverse user behaviors and trajectories, complicates this task. Traditional beamforming approaches struggle to adapt to such scenarios, often leading to signal degradation, connectivity drops, inefficient resource utilization and more power consumption. This research presents an advanced framework that integrates historical user trajectories through beam sweeping, user tracking via sensor-based information combined with beam sweeping, and Kalman … Lire la suite
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2022 — Re*Spire: An Artaudian Exploration of the Cough and TechnologyRésumé
Re*Spire: An Artaudian Exploration of the Cough and Technology In this support paper, theatre technologist Patrick James reflects on the technology, creative process, and theory implemented during the creation of Re*Spire: a technology fueled dance performance which investigates the performers’ and audience’s sense of liveness as the performance world has moved to digital platforms due to the onset of the COVID-19 pandemic. This paper and creative work argues that, specifically in post COVID contemporary theatre, combining theatre and creative technology via the medium of the “coughing body” can produce what Artaud calls “cruelty” to reengage audiences and re-enliven scenography. This … Lire la suite
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2018 — Conventional and Carbonated Water Flooding in Heavy Oil Systems: Micromodel and Coreflooding StudiesRésumé
Despite the severe viscosity contrast and low displacement efficiency in heavy oil reservoirs, conventional waterflooding is still considered as one of the feasible recovery processes for such reservoirs. On the other hand, conventional waterflooding has been well studied and has been suggested for light oil reservoirs. However, viability of carbonated waterflooding for heavy oil reservoir and impact of operational parameters, reservoir characteristics, and fluid properties on the performance of this technique are yet to be fully understood. In this study, the performances of conventional and carbonated waterflooding in heavy oil reservoirs were analyzed through various micromodel and coreflooding experiments. Prior … Lire la suite
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2021 — Mass Transfer of Alkane Solvents-CO2-Heavy Oil Systems in the Absence and Presence of Porous Media Under Reservoir ConditionsRésumé
For a thin heavy oil reservoir where thermal methods are not applicable due to heat loss to over- and under-burdens, gas injection is considered to be an effective alternative. One of the major mechanisms associated with gas injection is the molecular diffusion of dissolved gas(es) which reduce the viscosity of heavy oil while inducing oil swelling. Physically, addition of a less volatile gas to a more volatile gas enhances both viscosity reduction and oil swelling, while the presence of porous media complicates such mass transfer processes. Diffusivity of dissolved gas(es) in heavy oil is often estimated as a constant, while … Lire la suite
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2021 — Covid-19 (Coronavirus) Disease Diagnosis Using Fuzzy Inference SystemRésumé
Intelligent Systems (IS) are called technologically advanced machines. IS includes a variety of techniques that can deal with uncertainty and complex problems. This research study aims to diagnose the coronavirus (COVID-19) diseases symptoms using an Intelligent Systems approach. The COVID-19 epidemic is currently one of the most deadly diseases in the world. The pandemic has affected human life and global economy adversely at a large scale. It is spreading rapidly through humans, causing severe health issues and death worldwide. This virus affects different people in different ways. A large number of people are not aware of being infected with COVID- … Lire la suite
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2018 — Contingent Employment at Saskatchewan Polytechnic: A Grounded Theory StudyRésumé
This qualitative study investigated the experiences of five term contract employed instructors at Saskatchewan Polytechnic using the constructivist grounded theory methodology as discussed by Charmaz (2014). The theoretical framework for the study was informed by a review of theories pertaining to organizational behavior and contingent employment as well as the economic and professional development theoretical perspectives on contingent employment. Five participants were interviewed individually using open-ended interviews to elicit their views regarding their contingent employment arrangements. Grounded theory was chosen in an attempt to derive a theory based on the experiences of these five participants rather than trying to fit … Lire la suite
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2011 — An Application of Health Behaviour Models to Diabetic Treatment Adherence: A Comparison of Protection Motivation Theory and The Theory of Planned BehaviourRésumé
Diabetes is a medical condition in which affected individuals have relatively low adherence to the treatment regimen consisting of medications, diet, exercise, and blood glucose monitoring. Models of health behaviour such as Protection Motivation Theory (PMT; Rogers, 1983) and the Theory of Planned Behaviour (TPB; Ajzen, 1991) have been developed in order to understand the many factors proposed to influence health behaviours but have not been sufficiently applied to diabetes. Both PMT and TPB predict intention to perform health behaviours but focus on different cognitions relating to intention. In addition to predicting intention and behaviour, the models may also be … Lire la suite
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2023 — World class manufacturing during prototyping for productionRésumé
The transition from prototype to production affects impacts cost and scalability and contributes to the organizational culture. Since, the implementation of World Class Manufacturing (WCM) during prototyping has not been well document; this thesis examines applying WCM tools and techniques to foster a Lean culture by selecting, and optimizing the assembly process, integrating Enterprise Resource Planning (ERP) system, developing standard operating procedures, continually improving processes and adapting facility layouts, along with assessing ergonomic factors. The management team selected a modular assembly which allowed uncoupling workstations, un-synchronizing movements, improving changeability for agility, and lowering lead times. The effect balanced the production … Lire la suite
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2021 — Lean 4.0: Case Studies and Development FrameworkRésumé
A fast-paced evolving environment gives rise to many needs; hence the supply and demand also need to be fast-paced. To equip industries to manage the quick and continuous changes in supply and demand, principles or tools like Lean and Industry 4.0 technologies are used. Lean is the process of adding value to a process or a product, by eliminating wastes from the product process chain. Industry 4.0 is the fourth revolution of the industry which has evolved from the technologies of steam engines, computers to the present-day technologies such as Internet of Things, Big Data, Artificial Intelligence, Additive manufacturing, etc. … Lire la suite
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2016 — Phosphorus-Carbon Bond Formation Using Metal-Coordinated Phosphenium Ions and Phosphine TriflatesRésumé
Chloride abstraction reactions have been investigated towards the formation of metal-coordinated phosphenium ions ([M]–PR2+) from metal-coordinated chlorophosphines. The electron-poor metal fragment W(CO)5 was used on all studied chlorophosphine complexes. Chlorophosphines [W(CO)5{P(Cl)C(Ph)C(Ph)}] (4), [W(CO)5{PPh2Cl}] (32), [W(CO)5{PPhCl2}] (60), [W(CO)5{PCl3}] (100) and [W(CO)5{P(NEt2)Cl2}] (101) were synthesized using existing or new methods. Chloride abstraction from 4 with excess AlCl3 leads to the phosphirenyl cation complex [W(CO)5{PC(Ph)C(Ph)}][AlCl4] (8). Compound 8 undergoes electrophilic aromatic substitution with ferrocene to form a ferrocenylphosphirene complex. Chloride abstraction from 4 with AgOSO2CF3 leads to a phosphirenyl triflate complex 12, which reacts with ferrocene in the same fashion as 8 but … Lire la suite
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2024 — Future nostalgia in the twenty-first century: Hauntology, hermeneutics, and historicity in contemporary popular musicRésumé
This thesis offers a critical analysis and discussion of the philosophical and popular culture concept of hauntology and its application to popular music and theory of history, arguing that hauntology is limited in ways that make it unequipped for understanding popular music’s historicity as the form develops into the 2020s. Drawing on UK artist Dua Lipa’s 2020 album Future Nostalgia as a case study, the argument suggests that recent developments in music production and consumption challenge the hauntological understanding of pop’s historicity. It concludes that instead of looking at the historical in pop through the lens of hauntology, popular music’s … Lire la suite
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2021 — Magnitude and Regulating Factors of Carbon Dioxide, Methane, and Nitrous Oxide Concentration From Natural and Constructed Agricultural Waterbodies on the Northern Great PlainsRésumé
Greenhouse gases (GHGs), including carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), are increasing in concentration in the atmosphere. This poses a risk to the planet due to the radiative forcing of these gases which is ultimately leading to climate change. Inland waters across the globe, specifically lakes, rivers, and wetlands, are important sources, and occasional sinks, of GHGs to the atmosphere, due to the natural biogeochemical processes happening in these waterbodies. Understanding the contribution of these systems to the global GHG budget and the processes regulating the GHG emissions is important, as it helps to understand how these … Lire la suite
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2018 — The Effectiveness of Early Resettlement Strategies for Women in Regina, Saskatchewan: A Study of Examining Current Programs and Pathways to Successful ResettlementRésumé
This thesis aims to understand the perceptions of a narrow sample of program recipients and deliverers regarding the efficacy of programs and services in Saskatchewan designed to serve forcibly displaced women. Specifically, the purpose of the study was to determine how the current state of programs and services impact the wellbeing of the women. Wellbeing is defined in this research as a critical component to the broader definitions of mental health provided by the World Health Organization (WHO) and the Public Health Agency of Canada (PHAC). Wellbeing was identified as feelings of inclusion, engagement, and overall life satisfaction. Program analysis … Lire la suite
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2013 — Body Image: Complexity and Conflict within the Classroom TeacherRésumé
The role of the teacher in educating and socializing children is an extremely important one. The beliefs and understandings that a teacher possesses impact her behaviors and practices. In turn, the classroom and its pupils are also impacted. It is therefore important to consider that the ways in which a teacher’s definition of body image, understanding of her own body image, and perceived role with respect to the curriculum will have an impact on the beliefs and values of her students. This thesis examines health teachers’ positions in relation to body image to better understand what teachers bring to their … Lire la suite
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2019 — New Multivariate Zero-Inflated Beta-Binomial DistributionRésumé
The multivariate zero-inflated beta-binomial model is significantly important for modelling and analyzing multivariate proportional data with extra zeros. Comparing with the binomial model, the beta-binomial model is a better alternative for explicitly accounting for over-dispersion, and zero-inflated model has a better performance on analyzing the data with excess zeros. For dealing with the data with over-dispersion and extra zeros together, zero-inflated beta-binomial model is created. Likelihood- based inferences procedures include the induction of estimating parameters of the MZIBB model via Newton-Raphson algorithm, Fisher scoring algorithm, and EM algorithm. The score test and likelihood ratio test are derived for testing the … Lire la suite
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2016 — Lithofacies, Cyclicity and Diagenetic Characteristics of the Mississippian Mission Canyon Formation, Southeast SaskatchewanRésumé
In southeastern Saskatchewan, the Mississippian Mission Canyon Formation was deposited in the northern platform margin of the Williston Basin and includes, from bottom to top, Tilston Beds, Alida Beds, Kisbey interval and Frobisher Beds. The formation is dominated by carbonate lithofacies, subordinate evaporites and economically important sandstone lithofacies (Kisbey interval) also occur within the formation. Cores, cuttings, wireline logs and petrographic studies of these strata in the research area have allowed identification of lithologic attributes, cyclicity and diagenetic features of the strata. Eight lithofacies have been identified: i) oolitic and bioclastic packstone/ grainstone (Facies PG), ii) oncolitic rudstone (Facies RD,) … Lire la suite
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2015 — Tunable Microwave Bandpass Filter Design Using The Sequential MethodRésumé
Microwave filers are the essential components in a RF (radio frequency)/Microwave system, because they are used to provide frequency selectivity. A RF/Microwave system always supports multiple radio frequency bands. Thus, several microwave filters are normally needed in a RF/Microwave system. The more microwave filters a RF/Microwave system will need, the more cost and lager physical sizes the RF/Microwave system will have. Thus, tunable microwave filters provide the possibility to extensively reduce the cost and physical size of a RF/Microwave system. During the last several decades, tunable microwave filters have attracted lots of research efforts. Conventional methods used to design tunable … Lire la suite
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2014 — Enhanced Solvent Vapour Extraction processes in Thin Heavy Oil ReservoirsRésumé
Solvent-based techniques, such as solvent vapour extraction (VAPEX) and cyclic solvent injection (CSI), have emerged as promising processes to enhance heavy oil recovery. However, there are still a number of technical issues with these processes, such as the theoretical modeling and performance enhancement. This thesis aims at addressing the following major technical topics. Theoretical modeling of VAPEX. Heavy oil−solvent transition zone is where the VAPEX heavy oil recovery occurs. Existing analytical VAPEX models can neither fully characterize the transition zone nor accurately predict its growth. Numerical simulation models use grid sizes that are much larger than the transition-zone thickness (~1 … Lire la suite
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2022 — Investigation of water-in-oil emulsion on CSI solvent dissolution and ex-solution performance for heavy oilRésumé
The previous phase behavior studies of solvent and heavy oil systems were studied with cleaned tank oil samples only without considering the natural emulsion state of heavy oils, which does not fully reflect the proper fluid flow mechanisms at actual reservoir conditions. Therefore, in this study, the influence of water-oil emulsion on heavy oil's fluid properties and phase behavior was conducted. The effects of the water content on the physical properties of dead and live oils and their influence on the exsolution and dissolution processes of heavy oil mixtures were examined. The experiments used emulsion oils with three different water … Lire la suite
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2020 — Performance Evaluation of Horizontal Wells With Multistage Fractures in Tight Formations by Considering Non-Darcy Effect and Fracture DynamicsRésumé
Performance evaluation of fractured wells has attracted increasing attentions since horizontal drilling and hydraulic fracturing technologies have been successfully and efficiently applied in tight formations; however, such an evaluation process is physically complex and mathematically challenging due to the composite effects of non-Darcy flow within fractures and fracture dynamics including complex fracture geometry, fracture network, and stress-sensitive permeability. It is of fundamental and practical importance to evaluate the production performance of a fractured well by taking the aforementioned composite effects into account in a consistent and accurate manner. A new slab source function was developed in the Laplace domain for … Lire la suite
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2013 — An Improved Vapour Solvent Injection Technique for Enhanced Heavy Oil RecoveryRésumé
There are tremendous heavy oil and bitumen resources in Canada, and most of them are located in the Western Canadian Sedimentary Basin. Thermal-based recovery techniques, such as steam flooding, cyclic steam stimulation (CSS), and steam-assisted gravity drainage (SAGD), are effective and have been widely applied in the field to reduce heavy oil viscosity. However, thermal-based methods are costly and uneconomic, particularly for reservoirs with a thin net-pay. In Saskatchewan, half of the heavy oil resources are contained in reservoirs with a pay zone thickness of less than 10 metres. Non-thermal methods, such as cold production, and solvent-based methods, are the … Lire la suite