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Oshawa, Canada

The University of Ontario Institute of Technology is a public research university located in Oshawa, Ontario, Canada. The university shares its campus with Durham College. The university was founded in 2002 and accepted its first students in 2003, making it one of Canada's newest universities. The enabling legislation is the University of Ontario Institute of Technology Act, 2002. All undergraduate programs require students to lease a laptop PC from the university as a condition of enrollment, making it Ontario's only laptop-based university. Faculty members also encourage students to use their laptops to complete assignments, perform laboratory research and interact with faculty during lectures. UOIT offers a range of undergraduate programs, and graduate programs in Science, Engineering, Health and Information Technology. The UOIT campus is approximately 400 acres in the northern part of Oshawa. Wikipedia.

Rosen M.A.,University of Ontario Institute of Technology
Energy | Year: 2010

Hydrogen demand as an energy currency is anticipated to rise significantly in the future, with the emergence of a hydrogen economy. Hydrogen production is a key component of a hydrogen economy. Several production processes are commercially available, while others are under development including thermochemical water decomposition, which has numerous advantages over other hydrogen production processes. Recent advances in hydrogen production by thermochemical water decomposition are reviewed here. Hydrogen production from non-fossil energy sources such as nuclear and solar is emphasized, as are efforts to lower the temperatures required in thermochemical cycles so as to expand the range of potential heat supplies. Limiting efficiencies are explained and the need to apply exergy analysis is illustrated. The copper-chlorine thermochemical cycle is considered as a case study. It is concluded that developments of improved processes for hydrogen production via thermochemical water decomposition are likely to continue, thermochemical hydrogen production using such non-fossil energy will likely become commercial, and improved efficiencies are expected to be obtained with advanced methodologies like exergy analysis. Although numerous advances have been made on sulphur-iodine cycles, the copper-chlorine cycle has significant potential due to its requirement for process heat at lower temperatures than most other thermochemical processes. © 2009 Elsevier Ltd. All rights reserved. Source

Ammam M.,University of Ontario Institute of Technology
RSC Advances | Year: 2012

Classical electrophoretic deposition (EPD) relies on continuous direct current (CDC) to deposit charged particles on electrodes. In recent decades, modulated electric fields such as pulsed direct current (PDC) and alternating current (AC) have been investigated. This paper reviews EPD under these modulated electric fields and major applications of the deposited microstructures. The paper starts with a short overview of EPD principals such as the electrical double layer of the charged particle, electrophoretic mobility and main suspension parameters including zeta potential, particle size, conductivity, viscosity and stability of the suspension. The EPD mechanisms from the earliest model reported by Hamaker and Verwey to latest models including Sarkar and Nicholson model and influence of the electrohydrodynamics and electroosmosis as well as electrode surface and its electrochemical double layer on the deposition process have been briefly discussed. Two categories of modulated electric fields, PDC and AC fields have been addressed with their advantages and disadvantages. It is found that compared to CDC, PDC offers the advantage of: i) reducing the coalescence between gas bubbles induced by water electrolysis from aqueous suspensions, hence yielding deposition of smooth and uniform coatings, ii) reducing aggregation and disaggregation of nanometer sized particles, leading to formation of uniform and homogenous deposits and, iii) PDC generates low change in pH near the electrode, thus it is convenient for deposition of biochemical and biological species in their highly active states. The main disadvantage of PDC over CDC lies in the decrease of the deposition yield. The latter can be more pronounced if low time-pulses are used. Various categories of AC signals including symmetrical fields with no net DC component and asymmetrical AC signals without and with net DC component have been discussed. Overall, the deposition rate under AC fields increases with polarization time and amplitude. With respect to frequency, the deposition rate increases with frequency up to certain value then drops at elevated frequencies. It is noted that deposition under AC signals offers the possibility to produce superior quality coatings from aqueous suspensions because electrolysis of water as well as particle orientation during the deposition could be controlled. From the application standpoint, PDC and AC, offers new application perspectives such as in biotechnology. Because under modulated electric fields, EPD can now be accomplished from aqueous suspensions with low water electrolysis rates, a variety of biochemical and biological species can be deposited to yield highly active layers suitable for a wide range of applications including biosensors, biofuel cells and bioreactors. This journal is © 2012 The Royal Society of Chemistry. Source

Kay R.H.,University of Ontario Institute of Technology
Computers in Human Behavior | Year: 2012

The purpose of this article was to provide a comprehensive review of research on video podcasts from 2002 to 2011 in order to guide future studies and educational practice. Fifty-three, peer-reviewed articles were selected from an extensive search of the literature. Key topics included the history and growth of video podcasts, types of podcasts, previous literature reviews, benefits and challenges of using video podcasts, methodological concerns, and suggestions for future research. Key benefits included positive affective and cognitive attitudes toward video podcasts, control over learning, improved study habits, and increased learning performance. Key challenges included a variety of technical problems, preference of some students for lectures, and reduced class attendance. Methodological concerns involved insufficient description of video podcasts examined, limited sample selection and description, and the absence of reliability and validity estimates for data collection tools. Suggestions for future research include focusing on the quality and design of video podcasts, pedagogical strategies, viewing patterns and impact on learning effectiveness, and in individual differences in video podcast use. © 2012 Elsevier Ltd. All rights reserved. Source

Ammam M.,University of Ontario Institute of Technology
Journal of Materials Chemistry A | Year: 2013

Today, sensing represents one of the key topics in current science and technology. Polyoxometalates (POMs), which are defined as early transition metal clusters, are considered as one of the most growing fields of research and development in sensing. This paper discusses the promising prospects of POMs in sensing. The paper starts with brief definitions about the formation of POMs. The two basic structures of POMs, Keggin and Dawson, as well as some combined structures are discussed. The interesting properties of POMs particularly as acid catalysts, in medicine, in redox chemistry and in magnetism are briefly mentioned. The main methods used for the deposition of POMs on solid supports (substrates) including chemisorption, electrodeposition, encapsulation in polymers and sol-gels, immobilization using the Langmuir-Blodgett process, layer by layer assemblies as well as deposition via formation of hybrid POM-organic moieties are discussed with their advantages and disadvantages. Finally, the potential applications of immobilized POMs on solid substrates as sensors for the detection and determination of analytes both in liquid and in the gas phase are addressed and compared. This journal is © The Royal Society of Chemistry 2013. Source

DeKeseredy W.S.,University of Ontario Institute of Technology
Aggression and Violent Behavior | Year: 2011

Woman abuse in intimate heterosexual relationships takes different shapes and forms and is a worldwide public health problem. Many journalists, activists, and researchers, however, minimize the extent of woman abuse, sharply criticize feminist empirical, theoretical, and policy work on this issue, and disseminate myths about feminism. A key objective of this paper is to challenge these myths and respond to criticisms of feminist scholarship. Another goal is to show that some feminists use quantitative methods and that feminist techniques influence some types of conventional research, such as large-scale surveys conducted in Canada and the United States. © 2011 Elsevier Ltd. Source

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