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Electronic Theses and Dissertations

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2003

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Enhancing The Yield Of Target Tissue And Secondary Metabolites In Calendula Officinalis L., A Medicinal Plant., Christie Lynn. Stewart Jan 2003

Enhancing The Yield Of Target Tissue And Secondary Metabolites In Calendula Officinalis L., A Medicinal Plant., Christie Lynn. Stewart

Electronic Theses and Dissertations

Medicinal crops can be usefully studied in controlled hydroponic systems in which various factors can be manipulated to increase target plant tissue yield and secondary metabolite production. In this project floral tissue and other plant organs of the medicinal plant Calendula officinalis and four important secondary metabolites: quercetin, rutin, isorhamnetin-3-O-glucoside and isorhamnetin-3-rutinoside were quantified under contrasting conditions in terms of phosphorus concentration, rate of nutrient supply and simulated foliar herbivory in a factorial experimental design. The objectives were to identify conditions that will maximize the yield of target plant tissue, maximize the production of secondary metabolites and minimize the variation …

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Experimental Study And Theoretical Modelling Of Ultrasonic Wave Propagation In Resistance Spot Welds., Andriy M. Chertov Jan 2003

Experimental Study And Theoretical Modelling Of Ultrasonic Wave Propagation In Resistance Spot Welds., Andriy M. Chertov

Electronic Theses and Dissertations

The theoretical and experimental study of resistance spot weld quality has a long history. Since the invention of the method manufacturers are concerned about the means of quality assurance of the joints. One of the most promising current techniques of quality inspection is the real time ultrasonic nondestructive evaluation. In such a system the acoustic signals are sent through the spot weld during welding and then analyzed to predict the size of the future joint. In spite of its purely industrial application and seemingly easy setup the problem involves several complicated mechanisms to be described using a physical-mathematical approach. This …

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Fire Island (Original Writing)., Teresa Louise. Scholten Jan 2003

Fire Island (Original Writing)., Teresa Louise. Scholten

Electronic Theses and Dissertations

Abstract not available. Source: Masters Abstracts International, Volume: 42-03, page: 0766. Adviser: John Ditsky. Thesis (M.A.)--University of Windsor (Canada), 2003.

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Formation Of Flexible Manufacturing Cells With Human Lifting Consideration., Setiadi. Lesmana Jan 2003

Formation Of Flexible Manufacturing Cells With Human Lifting Consideration., Setiadi. Lesmana

Electronic Theses and Dissertations

Manufacturing companies are being forced to design and organize their manufacturing operations to survive the competition and to satisfy the customers' needs. Cellular Manufacturing Systems (CMS) have been considered as an important step in achieving these objectives. In this research, mixed integer programming models are developed. The objective of the models is to minimize the total cost function associated with the formation of the manufacturing cells, while considering the human limitation of manual lifting tasks. In addition, the multi period models consider machine relocation and/or manpower level change to balance machine and operator workload throughout the production periods. The models …

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Fundamentals And Process Modeling Of Supersonically Induced Mechanical Alloy Technology (Simat(Tm)) For Engine Production., Evgeny. Leshchinsky Jan 2003

Fundamentals And Process Modeling Of Supersonically Induced Mechanical Alloy Technology (Simat(Tm)) For Engine Production., Evgeny. Leshchinsky

Electronic Theses and Dissertations

Conventional Metal Powder Coatings, designed to obtain anti-corrosive, wear and thermal resistant properties, are studied and their properties are analyzed. The capabilities of the Supersonically Induced Mechanical Alloy Technology are investigated with the purpose to enhance the surface strength and durability, simplify the deposition procedure and increase service time. A new spray deposition process is shown and compared with other different methods of Metal Powder Coating deposition. A new method is developed that is less expensive and operates with similar load mechanisms on powder particles. High strain rate deformation can be easily studied by special powder compaction. In this method, …

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Health Promotion Initiative For Booster Seats: A School-Based Educational Intervention., Jody Ann. Mcginnis Jan 2003

Health Promotion Initiative For Booster Seats: A School-Based Educational Intervention., Jody Ann. Mcginnis

Electronic Theses and Dissertations

The purpose of this study was to investigate the effect of a booster seat educational intervention on the purchasing/obtainment behavior of parents. A quasi-experimental methodology was utilized, including an educational seminar for parents and their children. Data analysis combined a mixed factorial ANOVA, with one between subjects factor (group; intervention vs. control) and one within subjects factor (session; pretest vs. post-test). Pre-test and post-test scores were examined related to the dependent variables of use and obtainment. Analysis of differences in retention of information and child's cooperation using the booster seat were also examined as independent variables. Findings support the development …

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A Correlational Study Of Emotional Intelligence And Aggression In Adolescents., Andrew William. Johnston Jan 2003

A Correlational Study Of Emotional Intelligence And Aggression In Adolescents., Andrew William. Johnston

Electronic Theses and Dissertations

The relationship between adolescent emotional intelligence and adolescent aggression was investigated. Seventy one 7th and 8th grade students participated in the study. The students ranged in age from 11 to 14 years. All subjects completed the Baron Emotional Quotient Inventory: Youth Version (Baron EQ-i:YV) as a measure of emotional intelligence. They also completed an Aggression Questionnaire (Buss & Perry, 1992, Journal of Personality and Social Psychology, 63, 452--459). Pearson product-moment correlations were examined indicating an overall significant negative correlation between Emotional Intelligence and Aggression (r = -.693, p < .001). Stepwise multiple regression analysis was used to further investigate relationships between components of Aggression and Emotional Intelligence. Analysis indicated that Stress Management (beta = -.736, p < .001) and Intrapersonal (beta = -.268, p < .001) measures were significant predictors of Physical Aggression. A second stepwise multiple regression analysis indicated that Anger (beta = .591, p < .001) and Hostility (beta = .292, p < .05) were also significant predictors of Physical Aggression. A one-way analysis of variance indicated significant gender differences with males scoring higher on Physical Aggression (p < .001) and Total Aggression (p < .01) and females scoring higher on Emotional Intelligence (p < .05). Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2003 .J65. Source: Masters Abstracts International, Volume: 42-02, page: 0368. Adviser: Larry Morton. Thesis (M.Ed.)--University of Windsor (Canada), 2003.

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A Heuristic For Wdm Path Protection., Min. Hou Jan 2003

A Heuristic For Wdm Path Protection., Min. Hou

Electronic Theses and Dissertations

Optical fibers and Wavelength Division Multiplexing (WDM) are being researched as well as commercially deployed as technologies that can satisfy the bandwidth requirements of the Internet today and the foreseeable future. Since optical resources are expensive, we need to develop network design mechanisms, which can achieve an efficient utilization of network resources in a reasonable computational time. In WDM networks, the failure of a single fiber link may cause very large data loss if the traffic is not rerouted quickly. Therefore, the survivability of optical connections has become a very important issue for WDM network design. In this thesis, we …

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Affective, Cognitive, And Performance Consequences Of Self-Selected Self-Handicaps., Kelly Theresa. Powell Jan 2003

Affective, Cognitive, And Performance Consequences Of Self-Selected Self-Handicaps., Kelly Theresa. Powell

Electronic Theses and Dissertations

Self-handicapping is defined as the construction of obstacles or impediments to successful performance by an individual to protect or enhance self-esteem or self-image. The purpose of this research study was to explore the consequences of engaging in a behavioral self-handicapping strategy. In addition to positive and negative affect, test performance, test performance attributions, and self-efficacy were measured. Self-esteem and tendency to self-handicap served as covariates. Self-selected handicaps were examined in a quasi-experimental design. Participants chose whether to self-handicap or not by selecting either perceived distracting or enhancing music. Participants completed pre-test measures of positive affect, negative affect, self-esteem, and tendency …

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Aggressive Boys' Attributions Of Emotions And Intentions In Social Situations., Wendy. Manel Jan 2003

Aggressive Boys' Attributions Of Emotions And Intentions In Social Situations., Wendy. Manel

Electronic Theses and Dissertations

This study compared aggressive and non-aggressive boys' attributions of emotions and intentions in social situations. Forty males aged 9--12 years of age participated in this study. The aggressive group (n = 20) was referred from three different children's mental health centers. The non-aggressive group (n = 20) consisted of boys recruited from the community. Participant's parents completed two measures assessing behaviour problems in childhood. Participants were presented with 12 vignettes in which one child was involved in behaviour, which resulted in a negative outcome for another child. For half of the stories participants were asked to imagine themselves as the …

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Strategic Design And Tactical Planning Models For Supply Chain Networks: A Mixed Integer Programming Approach., Navneet Kumar. Vidyarthi Jan 2003

Strategic Design And Tactical Planning Models For Supply Chain Networks: A Mixed Integer Programming Approach., Navneet Kumar. Vidyarthi

Electronic Theses and Dissertations

Supply chain management, propelled by pressures for responsiveness and cost reductions, is now at the center stage of the business performance of several manufacturing and service organizations. One of the biggest challenges faced by these organizations in the chain is the need to respond to frequent and unpredictable changes in the market. In order to respond to these changes effectively, the organization needs to focus its efforts on design and operation of efficient and effective supply chain networks. In this thesis, a strategic level design model has been developed to determine the configuration of the supply chain network---number, location and …

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Strengthening Of Reinforced Concrete Beams Using Innovative Ductile Composite Fiber-Reinforced Polymer Systems., Wael Fathy. Ragheb Jan 2003

Strengthening Of Reinforced Concrete Beams Using Innovative Ductile Composite Fiber-Reinforced Polymer Systems., Wael Fathy. Ragheb

Electronic Theses and Dissertations

Although the technique of external strengthening of reinforced concrete beams using externally bonded Fiber Reinforced Polymer (FRP) materials has been established as an effective tool for rehabilitating and strengthening reinforced concrete beams, it is still suffering from some drawbacks. A significant part of these drawbacks is attributed to the characteristics of currently available FRP strengthening systems. This study deals with the development and evaluation of the effectiveness of two innovative ductile FRP systems for flexural/shear strengthening of reinforced concrete beams. The systems are fabrics that are hybrid of glass and carbon fibers and designed to have the potential to avoid …

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The Addition Of Hydrogen And Oxygen To A Gasoline-Fuelled Si Engine To Enhance Combustion And Reduce Emissions., Tina. D'Andrea Jan 2003

The Addition Of Hydrogen And Oxygen To A Gasoline-Fuelled Si Engine To Enhance Combustion And Reduce Emissions., Tina. D'Andrea

Electronic Theses and Dissertations

Automobiles have become an essential part of our economy and provide a convenience that most have become dependent on, however they have also had a dramatic impact on our health and environment. As a result there is an incentive to find ways to more efficiently use conventional fuels and decrease emissions while alternative fuels and vehicles are being developed. This research involved studying the effects of adding small amounts of hydrogen and hydrogen and oxygen to a gasoline fuelled spark ignition (SI) engine. The hydrogen and oxygen were added in a ratio of 2:1, mimicking water electrolysis products. It was …

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The Effect Of Turbulence On Forced Convection From A Heated Horizontal Circular Cylinder., Christopher. Sak Jan 2003

The Effect Of Turbulence On Forced Convection From A Heated Horizontal Circular Cylinder., Christopher. Sak

Electronic Theses and Dissertations

The effects of free stream turbulence integral length scale and turbulence intensity (root-mean-square stream-wise component of velocity fluctuation) on the rate of forced convective heat transfer from a heated horizontal circular cylinder in a cross flow of air were investigated experimentally. An internally heated 5.1 cm (2&inches;) diameter aluminium cylinder was placed horizontally in an 86 cm wide by 66 cm high (34&inches; by 26&inches;) wind tunnel. The power supplied by the internally embedded heater was kept constant in order to maintain uniform surface temperature. A perforated plate was placed at the entrance to the test section to generate the …

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The Relationship Between Teachers' Perceptions Of Principals' Social Influence And Their Own Empowerment., James Ross. Morton Jan 2003

The Relationship Between Teachers' Perceptions Of Principals' Social Influence And Their Own Empowerment., James Ross. Morton

Electronic Theses and Dissertations

Principals, as managers of education reform, have influenced the change process of schools through teacher empowerment. An explanation of principal influence is social influence theory of social psychology, which suggests expertness (perceived specialized skills and knowledge), trustworthiness (perceived willingness to serve the best interests of the school), and social attractiveness (perceived similarity to teachers), are powerful contributors to influence. This study replicated Teacher Empowerment and Principal Leadership: Understanding the Influence Process (Rinehart et al., 1998), to explore the relationship between teachers' perceptions of principals' social influence and their own feelings of empowerment. Results of this study, which examined high school …

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The Role Of Crustal Contamination And Volatiles In The Genesis Of The Marathon Pge-Copper Deposit, Ontario: Constraints From Micometre Scale La-Icp-Ms Lead Isotope Systematics And Pge Distribution, Sean Andrew Crowe Jan 2003

The Role Of Crustal Contamination And Volatiles In The Genesis Of The Marathon Pge-Copper Deposit, Ontario: Constraints From Micometre Scale La-Icp-Ms Lead Isotope Systematics And Pge Distribution, Sean Andrew Crowe

Electronic Theses and Dissertations

The Marathon deposit is a platinum group element (PGE)-Cu deposit hosted by the Coldwell intrusive complex, located on the north shore of Lake Superior, Ontario. Contradictory models have been proposed for the genesis of the deposit. This paper investigates the relative importance of different ore forming processes responsible for the PGE and Cu enrichment in the deposit and tests these contradictory models. A method has been developed for the precise determination of Pb isotope ratios in solid materials using quadrupole LA-ICP-MS. The advantages of this method are several, including; micrometer-scale spatial resolution, rapid analysis time, and low risk of contamination …

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Ultrasonic Propagation Across A Thin Layer Between Two Bulk Media: Theory, Computer Simulation And Experiment., Jeffrey. Sadler Jan 2003

Ultrasonic Propagation Across A Thin Layer Between Two Bulk Media: Theory, Computer Simulation And Experiment., Jeffrey. Sadler

Electronic Theses and Dissertations

This thesis describes the changes in the reflected and transmitted acoustic waves due to the addition of a thin layer (thickness much less than an acoustic wavelength) between two half-spaces of material. The restriction of the thin layer allows one to combine perturbation methods with the standard fully bonded boundary conditions at each interface and derive a set of equations where one no longer is concerned with the acoustic waves internal to the thin layer. This approach allows one to further examine the cases of a nonlinear thin layer, an anisotropic thin layer, and a thin layer with combined anisotropy …

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Unhcr And The Politics Of Refugee Repatriation., Melaku T. Awoke Jan 2003

Unhcr And The Politics Of Refugee Repatriation., Melaku T. Awoke

Electronic Theses and Dissertations

This thesis critically examines the politics of refugee repatriation. Informed by a conceptual framework that draws on the concepts of "risk" (Beck 1992) and "governance" Rose (1999), the thesis investigates the United Nations High Commissioner for Refugees (UNHCR's) risk and governing discourses. It problematizes and rejects UNHCR's treatment of refugees "as a security risk" as well as its governing discourses and practices of "repatriation" and "containment". It advances a new perspective for understanding the politics of refugee repatriation and the governing dimensions associated with such politics.Dept. of Sociology and Anthropology. Paper copy at Leddy Library: Theses & Major Papers - …

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Vision-Guided Multiple Planar Object Recognition And Tracking., Shahed. Shahir Jan 2003

Vision-Guided Multiple Planar Object Recognition And Tracking., Shahed. Shahir

Electronic Theses and Dissertations

In order to minimize the cost for any improvement or changes in manufacturing products, a flexible manufacturing system is necessary. To do so, robots should be empowered with equipment like vision sensors, which can work as human eyes for robots. A tracking vision sensor consists of a CCD camera, data acquisition, preprocessing, recognition and tracking modules. In this thesis, a design methodology for invariant recognition-based object tracking is proposed, which can potentially be used for implementation of either vision sensors or tracking vision sensors. The performance of Invariant Recognition-based object tracking to a large extent depends on the object recognition …

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Walking The Contested Terrain: An Exploration Of The Lifer Identity Post-Release And Its Role In Reintegration., Catherine Lynn. Brooke Jan 2003

Walking The Contested Terrain: An Exploration Of The Lifer Identity Post-Release And Its Role In Reintegration., Catherine Lynn. Brooke

Electronic Theses and Dissertations

The purpose of this research is to explore the identity of life-sentenced inmates ('lifers') after they are released from prison and the impact of identity on reintegration. This research is based on the literature that argues that inmates develop a convict identity while in prison. Few studies, however, follow these convicts after they are released; thus, little is known about the fate of the convict identity. Based on role exit theory and role transition literature, it was expected that lifers would be required to shed their identity as lifers and assume a straight identity for successful reintegration. Seven lifers were …

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Wavelet-Based Multiresolution Method For Surface Reconstruction., Shobha. Iyer Jan 2003

Wavelet-Based Multiresolution Method For Surface Reconstruction., Shobha. Iyer

Electronic Theses and Dissertations

One of the areas of research that has achieved tremendous importance over the recent past is the problem of reconstructing a surface of a solid polyhedral object. This problem has found vast applications in human anatomy, automobile design, medical imaging and therapy, etc. One of the foremost techniques used to solve this problem included constructing the solid from a series of slices parallel to each other. This slice data was obtained by taking horizontal cross-sections passing through the interior of the solid like slicing an apple through a number of thin horizontal planes. The piecewise linear interpolation technique was one …

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Young Adult Parasuicidal Behaviour, Problematic Love Relationships, And Shame., Michael Edward Anthony. Oosterhoff Jan 2003

Young Adult Parasuicidal Behaviour, Problematic Love Relationships, And Shame., Michael Edward Anthony. Oosterhoff

Electronic Theses and Dissertations

The purpose of this research was to address the absence of psychological theory explaining the nature of young adult parasuicide by moving beyond the generic demographic and epidemiological correlates and developing a more focussed and practically viable conception of the psychological processes involved. Three hundred twenty-seven young adults (ages 18--25) were recruited to develop this psychological conception. Building upon past investigation that demonstrated problematic romantic and family relationships were related to depression and suicidal behaviour in young adults, this current research examined three additional developmentally relevant variables. These variables, shame, self diversity, and interpersonal dependence, are conceptually linked with the …

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Boldface (Original Writing, Poetry)., Nasser. Hussain Jan 2003

Boldface (Original Writing, Poetry)., Nasser. Hussain

Electronic Theses and Dissertations

boldface is a collection of spoken word poems. please read them aloud. Source: Masters Abstracts International, Volume: 42-03, page: 0766. Adviser: Susan Holbrook. Thesis (M.A.)--University of Windsor (Canada), 2003.

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Can The Early Development Instrument Be A Possible Assessment Tool For The Perceived Government Literacy Development Objectives At Ontario Early Years Centres?, Katherine Vera. Senchuk Jan 2003

Can The Early Development Instrument Be A Possible Assessment Tool For The Perceived Government Literacy Development Objectives At Ontario Early Years Centres?, Katherine Vera. Senchuk

Electronic Theses and Dissertations

This study examined whether the Early Development Instrument (EDI) (McMaster University, Hamilton Health Sciences Corporation, 2000) could be an effective assessment tool for the perceived government curriculum objectives at the Ontario Early Years Centres (OEYC). The sample consisted of four girls and two boys, aged 3--4 years. All of the subjects attended the same OEYC Centre, located in Windsor, Ontario. The Early Childhood Educators in the OEYC completed pre- and post-tests of the Early Development Instrument on each of the subjects. The researcher was an observer in the OEYC for two months. During this time, observational field notes were taken …

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Chemical, Biochemical, And Cellular Aspects Of S-Nitrosothiols., Shirin. Akhter Jan 2003

Chemical, Biochemical, And Cellular Aspects Of S-Nitrosothiols., Shirin. Akhter

Electronic Theses and Dissertations

Nitric oxide is involved in many physiological processes including vascular control, immune responses and neurotransmission under physiological conditions. Many functions of NO are triggered by the formation of its metabolite, S-nitrosothiol. S-nitrosothiols play an important role in the delivery, storage and transport of NO. In addition, they regulate the activity of a variety of proteins and enzymes. The first part of my study is focused on studying the regulatory role of S-nitrosothiol. In this study, S-nitrosothiols including S-nitrosoglutathione (GSNO) have been demonstrated to regulate the activity of a key protein in plasma, fibrinogen, without chemically modifying it. GSNO and a …

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Correctness Of Distributed Systems With Middleware., Hanmei. Cui Jan 2003

Correctness Of Distributed Systems With Middleware., Hanmei. Cui

Electronic Theses and Dissertations

Here we present a formal verification technique for the correctness of the design models of the component-based distributed applications where the inter-process communications are realized via general middleware layers. We give a suitable extension of UML statechart diagrams. With this extension, the components and the communications among them in a middleware-based distributed application can be clearly expressed, and the software developers can actually view the middleware as a black box. We assume that the abstract behavior of the distributed application is given in such notations using any UML tool capable of saving the design in the standard XMI format. Two …

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Depth Recovery Using A Plenoptic Camera., Mohamed. Amtoun Jan 2003

Depth Recovery Using A Plenoptic Camera., Mohamed. Amtoun

Electronic Theses and Dissertations

Depth recovery is a central problem in Computer Vision. Stereopsis is one of the most extensively investigated techniques amidst the approaches addressing it. Though sufficiently accurate, stereopsis is highly dependent on the success of point correspondence, an ill-posed problem that is known to suffer from a number of underlying difficulties. Single-lens stereo systems emerged recently as an effective means to thwart some of the problems of correspondence. The plenoptic camera in particular, has a special image formation geometry that claims to resolve the correspondence ambiguities and simplify depth recovery. However, to our knowledge, prior to this work, no study has …

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Design Of Iir Filters With Canonical Signed-Digit (Csd) Coefficients Using Genetic Algorithms., Li. Liang Jan 2003

Design Of Iir Filters With Canonical Signed-Digit (Csd) Coefficients Using Genetic Algorithms., Li. Liang

Electronic Theses and Dissertations

In this thesis, an optimization method is used in the design of 1-D IIR digital filters, doubly complementary filter pairs and 2-D IIR digital filters. This method uses genetic algorithm (GA) to minimize the mean square error between the desired and the designed filter responses in order to calculate the coefficients of the filter's transfer function. The 1-D IIR filters are designed using cascade structure, and constraints are imposed on the coefficients of the denominator polynomials to ensure stability. In the one-dimensional case, the method is also used to design doubly complementary filter pairs, in which case two filters that …

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A Bloom-Filter Strategy For Response Time Reduction In Distributed Query Processing., Wanxin Gao Jan 2003

A Bloom-Filter Strategy For Response Time Reduction In Distributed Query Processing., Wanxin Gao

Electronic Theses and Dissertations

In distributed database systems, query optimization is to find strategies attempt to minimize the amount of data transmitted over the network. Optimization algorithms have an important impact on the performance of distributed query processing. Since optimal query processing in distributed database systems has been shown to be NP-Hard [WC96], heuristics are applied to find a cost-effective and efficient (but suboptimal) processing strategy. Many query optimization strategies have been proposed to minimize either the total cost or the response time. The approaches in distributed query processing have mainly focused on the use of joins, semijoins, and filters. In this thesis, we …

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Operator Spaces., Soon Hee. Mun Jan 2003

Operator Spaces., Soon Hee. Mun

Electronic Theses and Dissertations

An operator space is defined as a linear space which is equipped with a sequence of matrix norms satisfying two natural axioms. There are some natural operator space structures for all Banach spaces. In this thesis we investigate operator space structures more concretely and their connections with the classical Banach space theory. In particular, some Banach space isometries can be described as the operator space identifications.Dept. of Mathematics and Statistics. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2002 .H455. Source: Masters Abstracts International, Volume: 42-01, page: 0245. Advisers: Zhiguo Hu; Tim …

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