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2004

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Investigation Into The Use Of Bait Stations For The Control Of The European Wild Rabbit (Oryctolagus Cuniculus) In The Urban Bushland Reserve Of Bold Park, Perth, Western Australia, Malin Kordes Jan 2004

Investigation Into The Use Of Bait Stations For The Control Of The European Wild Rabbit (Oryctolagus Cuniculus) In The Urban Bushland Reserve Of Bold Park, Perth, Western Australia, Malin Kordes

Theses : Honours

European rabbits in Australia have a significant impact on the environment and the economy. It is therefore necessary to implement control programs. In rural areas a number of methods including warren ripping and poisoning are frequently used. In urban areas though, rabbit control is not as easily accomplished because the use of many control methods is not appropriate. For example, the poison 1080 often cannot be used due to public health concerns and warren ripping cannot be used in conservation areas. Poisoning with pindone, an anticoagulant, is therefore one of few options available to the managers of urban reserves. However, …

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Natural Regeneration Of Native Vegetation On Abandoned Agricultural Land In The Fitzgerald Biosphere, Nerilee Boshammer Jan 2004

Natural Regeneration Of Native Vegetation On Abandoned Agricultural Land In The Fitzgerald Biosphere, Nerilee Boshammer

Theses : Honours

Much of the natural landscape in the south-west of Western Australia has been severely modified as a result of past and current agricultural activity. One of the most conspicuous changes has been the large scale clearing of native vegetation, The evidence of the negative impacts of this vegetation removal on the natural environment is now extensive, particularly in the south-west region of the State. In order to prevent further degradation of the landscape of the south-west and subsequent loss of endemic species, strategic revegetation within the agricultural landscape is required. Native vegetation corridors can be established, linking areas of remnant …

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Improving Nutrient Management At Lake Joondalup, Western Australia, Through Identification Of Key Sources And Current Trajectories, Michelle Cumbers Jan 2004

Improving Nutrient Management At Lake Joondalup, Western Australia, Through Identification Of Key Sources And Current Trajectories, Michelle Cumbers

Theses : Honours

Eutrophication has become a considerable issue for managers of water bodies across Australia. Rapid urbanisation in the south-west of Western Australia is causing the eutrophication of many wetlands within the region. Lake Joondalup is a eutrophic, urban lake, located approximately 20km north of Perth city. It comprises part of the Yellagonga Regional Park, having a high conservation value. The aim of this study was to provide managers of Lake Joondalup with information on the relative importance of different nutrient sources into the lake, thus enabling the development of appropriate management strategies. Additionally, a historical examination of available water quality data …

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Exploring The Possibilities Of Three Dimensional Image Manipulations On Mobile Devices, Thanuja Nuwan Hettiarachchi Jan 2004

Exploring The Possibilities Of Three Dimensional Image Manipulations On Mobile Devices, Thanuja Nuwan Hettiarachchi

Theses : Honours

With the introduction of more powerful mobile microprocessors and colour screen technology, complex image manipulations on various mobile devices such as mobile phones and handheld devices have become a reality. As a consequence of these improvements, there has been an increasing demand by users for interactive computer games which produce complex graphics by utilizing these advanced hardware technologies. Three dimensional (3D) graphics have been used to produce realistic interactive imaging for computer games during recent years. Java, through its mobile device programming platform, provides the framework for such complex image manipulations in computer games deployed on Java compatible mobile devices. …

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Financial Statement Analysis, Steelman Library Jan 2004

Financial Statement Analysis, Steelman Library

Syllabus Repository

No abstract provided.

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Predicting Dynamics Of Aggregate Loafing Behavior In Glaucous-Winged Gulls (Larus Glaucescens) At A Washington Colony, Shandelle M. Henson, James L. Hayward, Christina M. Burden, Clara J. Logan, Joseph G. Galusha Jan 2004

Predicting Dynamics Of Aggregate Loafing Behavior In Glaucous-Winged Gulls (Larus Glaucescens) At A Washington Colony, Shandelle M. Henson, James L. Hayward, Christina M. Burden, Clara J. Logan, Joseph G. Galusha

Faculty Publications

Seabirds move throughout the day in changing, patchy environments as they engage in various behaviors. We studied the diurnal abundance dynamics of Glaucous-winged Gulls (Larus glaucescens) in a habitat patch dedicated to loafing in the Strait of Juan de Fuca, Washington. We constructed three differential equation models as alternative hypotheses and then used model selection techniques to choose the one that most accurately described the system. We validated the model on an independent data set, made a priori model predictions, and conducted a field test of the predictions. Clear dynamic patterns emerged in the abundance of loafing gulls, even though …

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A Physics-Based Analytical Model Of An Algan/Gan High Electron Mobility Transistor, Jonathan Sippel Jan 2004

A Physics-Based Analytical Model Of An Algan/Gan High Electron Mobility Transistor, Jonathan Sippel

Theses

Popular semiconductors currently being used for RF applications include GaAs and InP. The operating frequencies for HEMTs built with these semiconductors covers the range from 800 MHz to 100 GHz. Although high-speed operation is attainable using GaAs or InP, product performance is limited when considering high-power applications, where a high breakdown field and thermal conductivity is needed. Proposed about fifteen years ago as a solution to this problem, GaN has emerged as a viable candidate to challenge, and perhaps overtake, GaAs and InP as the dominant semiconductor in RF products, particularly power amplifiers. This is due to its high breakdown …

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Experimental Study Of Flow Patterns, Heat Transfer, Pressure Drop And Gravitational Orientation During Flow Boiling In Minichannels, Prabhu Balasubramanian Jan 2004

Experimental Study Of Flow Patterns, Heat Transfer, Pressure Drop And Gravitational Orientation During Flow Boiling In Minichannels, Prabhu Balasubramanian

Theses

Microchannels and Minichannels are being used in electronic cooling, fuel cells, automotive heat exchangers, micro refrigeration systems. They are also being considered for high heat flux applications under microgravity environment in space missions. Research laboratories and industries throughout the world are trying to explore and tap the potential uses of these small diameter channels in various products and applications. Before stepping in to any of the product design phase, fundamental issues related to their performance have to be studied and resolved. This thesis work focuses on resolving some of these fundamental issues related to flow boiling in small diameter channels …

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Analytical And Numerical Modeling To Address Signal Integrity Issues In Mixed Signal Applications, Jeffrey D. Mcfiggins Jan 2004

Analytical And Numerical Modeling To Address Signal Integrity Issues In Mixed Signal Applications, Jeffrey D. Mcfiggins

Theses

Signal integrity issues are a major concern in highly integrated and compact mixed signal IC's. This work presents a numerical and analytical method for analyzing and assessing signal integrity issues relating to discontinuities, interconnects, and irregularly shaped power planes through the development of two independent methods. To address the coupling issue the finite difference time domain (FDTD) technique has been used, which is an accurate and robust algorithm capable of analyzing an arbitrary geometry in both the frequency and time domains. The analysis of signal integrity issues is carried out using examples such as transmission lines placed in close proximity, …

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High-Q2 Neutral Current Cross Sections In E+ P Deep Inelastic Scattering At √S = 318 Gev, S. Chekanov, M. Derrick, D. Krakauer, J. H. Loizides, S. Magill, S. Miglioranzi, B. Musgrave, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, A. Margotti, A. Montanari, R. Nania, F. Palmonari, A. Pesci, G. Sartorelli Jan 2004

High-Q2 Neutral Current Cross Sections In E+ P Deep Inelastic Scattering At √S = 318 Gev, S. Chekanov, M. Derrick, D. Krakauer, J. H. Loizides, S. Magill, S. Miglioranzi, B. Musgrave, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, A. Margotti, A. Montanari, R. Nania, F. Palmonari, A. Pesci, G. Sartorelli

Faculty Publications

Cross sections for e+ p neutral current deep inelastic scattering have been measured at a center-of-mass energy of √s = 318 GeV with the ZEUS detector at HERA using an integrated luminosity of 63.2 pb -1. The double-differential cross section, d2σ/ dxdQ2, is presented for 200 GeV2 < Q2 < 30 000 GeV2 and for 0.005 < x < 0.65. The single-differential cross sections dσ/dQ2, dσ/dx and dσ/dy are presented for Q2 > 200 GeV2. The effect of Z-boson-exchange is seen in dσ/dx measured for Q2 > 10 000 GeV2. The data presented here were combined with ZEUS e+ p neutral current data taken at √s = 300 GeV and the structure function F2em was extracted. All results agree well with the predictions of the Standard Model.

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Observation Of KS0KS0 Resonances In Deep Inelastic Scattering At Hera, S. Chekanov, M. Derrick, D. Krakauer, J. H. Loizides, S. Magill, B. Musgrave, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, A. Margotti, A. Montanari, R. Nania, F. Palmonari, A. Pesci, G. Sartorelli, A. Zichichi Jan 2004

Observation Of KS0KS0 Resonances In Deep Inelastic Scattering At Hera, S. Chekanov, M. Derrick, D. Krakauer, J. H. Loizides, S. Magill, B. Musgrave, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, A. Margotti, A. Montanari, R. Nania, F. Palmonari, A. Pesci, G. Sartorelli, A. Zichichi

Faculty Publications

Inclusive Ks0Ks0 production in deep inelastic ep scattering at HERA has been studied with the ZEUS detector using an integrated luminosity of 120 pb-1. Two states are observed at masses of 1537-8-9 MeV and 1726 ± 7 MeV, as well as an enhancement around 1300 MeV. The state at 1537 MeV is consistent with the well established f′2(1525). The state at 1726 MeV may be the glueball candidate f0(1710). However, it's width of 38 -14-20 MeV is narrower than 125 ± 10 MeV observed by previous experiments for the f0(1710). © 2003 Elsevier B.V. All rights reserved.

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Anatomy Of A Chaotic Attractor: Subtle Model-Predicted Patterns Revealed In Population Data, Aaron A. King, R. F. Costantino, J. M. Cushing, Shandelle M. Henson, Robert A. Desharnais, Brian Dennis Jan 2004

Anatomy Of A Chaotic Attractor: Subtle Model-Predicted Patterns Revealed In Population Data, Aaron A. King, R. F. Costantino, J. M. Cushing, Shandelle M. Henson, Robert A. Desharnais, Brian Dennis

Faculty Publications

Mathematically, chaotic dynamics are not devoid of order but display episodes of near-cyclic temporal patterns. This is illustrated, in interesting ways, in the case of chaotic biological populations. Despite the individual nature of organisms and the noisy nature of biological time series, subtle temporal patterns have been detected. By using data drawn from chaotic insect populations, we show quantitatively that chaos manifests itself as a tapestry of identifiable and predictable patterns woven together by stochasticity. We show too that the mixture of patterns an experimentalist can expect to see depends on the scale of the system under study.

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Feasibility Analysis Of Correlation Based Prefetching Using Digital Signal Processing, David L. Morse Jan 2004

Feasibility Analysis Of Correlation Based Prefetching Using Digital Signal Processing, David L. Morse

Theses

As the gap between processor performance and memory performance continues to broaden with time, techniques to hide memory latency such as correlation based prefetching become exceedingly important. When a memory reference issued by the processor misses the level one cache, the request propagates down the memory hierarchy until it finally finds the requested datum. With each layer traversed, the latency grows exponentially. Prefetching is a technique used to hide this latency by attempting to predict which memory references will be requested in the near future, and then load them into cache before they are needed. This work investigates the use …

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Evaluation Of The Playstation 2 As A Cluster Computing Node, Christopher R. Nigro Jan 2004

Evaluation Of The Playstation 2 As A Cluster Computing Node, Christopher R. Nigro

Theses

Cluster computing is currently a popular, cost-effective solution to the increasing computational demands of many applications in scientific computing and image processing. A cluster computer is comprised of several networked computers known as nodes. Since the goal of cluster computing is to provide a cost-effective means to processing computationally demanding applications, nodes that can be obtained at a low price with minimal performance tradeoff are always attractive. Presently, the most common cluster computers are comprised of networks of workstations constructed from commodity components. Recent trends have shown that computers being developed and deployed for purposes other than traditional personal computers …

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Concurrent Evolution Of Feature Extractors And Modular Artificial Neural Networks, Victor Hannak Jan 2004

Concurrent Evolution Of Feature Extractors And Modular Artificial Neural Networks, Victor Hannak

Theses

Artificial Neural Networks (ANNs) are commonly used in both academia and industry as a solution to challenges in the pattern recognition domain. However, there are two problems that must be addressed before an ANN can be successfully applied to a given recognition task: ANN customization and data pre-processing. First, ANNs require customization for each specific application. Although the underlying mathematics of ANNs is well understood, customization based on theoretical analysis is impractical because of the complex interrelationship between ANN behavior and the problem domain. On the other hand, an empirical approach to the task of customization can be successful with …

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Data Hiding In Images Based On Fractal Modulation And Diversity Combining, Sarat B. Atluri Jan 2004

Data Hiding In Images Based On Fractal Modulation And Diversity Combining, Sarat B. Atluri

Theses

The current work provides a new data-embedding infrastructure based on fractal modulation. The embedding problem is tackled from a communications point of view. The data to be embedded becomes the signal to be transmitted through a watermark channel. The channel could be the image itself or some manipulation of the image. The image self noise and noise due to attacks are the two sources of noise in this paradigm. At the receiver, the image self noise has to be suppressed, while noise due to the attacks may sometimes be predicted and inverted. The concepts of fractal modulation and deterministic self-similar …

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Interdisciplinary Collaboration In Graphic Design, Jill M. Kepler Jan 2004

Interdisciplinary Collaboration In Graphic Design, Jill M. Kepler

Theses

Not Included

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Forecasting Hospital Bed Availability Using Computer Simulation And Neural Networks, Matthew J. Daniels Jan 2004

Forecasting Hospital Bed Availability Using Computer Simulation And Neural Networks, Matthew J. Daniels

Theses

The success of hospitals in treating patients and staying in business relies on their efficient use of resources. In particular, the utilization of hospital beds is a critical concern, since over-crowding will result in delays or transfers of patients, and under-utilization will result in lost opportunity to treat patients and generate profit. To this end, hospital decision makers must have reliable forecasts of patient demand and bed availability. The objective of this thesis was to create a general method to forecast the availability of hospital beds in the short term, up to 2 days into the future. Specifically, this thesis …

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Modeling Periodic Blade Stresses Due To Stator-Rotor Interactions Using Computational Fluid Dynamics, Lisa M. Barrett Jan 2004

Modeling Periodic Blade Stresses Due To Stator-Rotor Interactions Using Computational Fluid Dynamics, Lisa M. Barrett

Theses

High cycle fatigue (HCF) is a common problem in military turbofan engines, resulting in engine component failure, and billions of dollars a year in repair and maintenance. HCF occurs due to engine component aerodynamic interactions, including vortical and potential field effects. In 1987, the IHPTET program was created by the U.S. Department of Defense. One of the goals of this program was to reduce high cycle fatigue in engine components. A method of reducing the amount of HCF occurring in a turbofan engine is referred to as trailing edge blowing (TEB). TEB reduces the vortical, or wake, components of a …

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Moving From Responsible Care Codes To Rc 14001 Management Systems: An Analysis Of Effects On Activities That Impact Regulatory Compliance And Ehs Performance, Liliana Yohonn Jan 2004

Moving From Responsible Care Codes To Rc 14001 Management Systems: An Analysis Of Effects On Activities That Impact Regulatory Compliance And Ehs Performance, Liliana Yohonn

Theses

This study aims to identify how the implementation of an Environmental Management System (EMS), designed to meet the requirements of the Responsible Care 14001:2002 Technical Specification, impacts the activities associated with compliance and improved environmental, health and safety performance.

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Enhanced Closed Loop Performance Using Non-Dimensional Analysis, Michael H. Wilson Jan 2004

Enhanced Closed Loop Performance Using Non-Dimensional Analysis, Michael H. Wilson

Theses

This paper investigates the benefits of using non-dimension analysis to develop a control law for a flexible electro-mechanical system. The system that is analyzed consists of a DC motor connected to a load inertia through a set of gears. A state space system model is derived using LaGrange's equation and then non-dimensionalized using a linear transformation. The resulting system model reveals the system character more clearly through the resulting dimensionless parameters. The parameters highlight the interaction between system properties and motor constants and demonstrate the benefits of a concurrent mechatronics design process. Open-loop behavior is analyzed and an optimal value …

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Investigation Of Pulse Compression Technique And Time-Frequency Analysis In Medical Ultrasound Imaging, Shyam Venkataraman Jan 2004

Investigation Of Pulse Compression Technique And Time-Frequency Analysis In Medical Ultrasound Imaging, Shyam Venkataraman

Theses

Linear frequency modulation (LFM) followed by pulse Compression processing has been

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Teaching Twice Exceptional Children: Gifted With Learning Difficulties: Professional Development And Provision In A Montessori School, Elaine Lewis Jan 2004

Teaching Twice Exceptional Children: Gifted With Learning Difficulties: Professional Development And Provision In A Montessori School, Elaine Lewis

Theses: Doctorates and Masters

This study seeks to investigate the teaching of gifted children in a Montessori school, with particular reference to gifted students with learning difficulties in writing. A review of the literature on the Montessori method of education and on provision for gifted children, shows considerable philosophical and practical overlap in these two fields. However, it appears that this theoretical overlap is not necessarily realised in practice. Furthermore, although considerable research has been conducted on the characteristics, identification and classroom provision for the gifted, very little has been undertaken on the actual provision for gifted children in Montessori schools or gifted children …

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Children's Efl Motivation: An Investigation Of 7-12 Year Old Students In Training Schools In China, Daosheng Liao Jan 2004

Children's Efl Motivation: An Investigation Of 7-12 Year Old Students In Training Schools In China, Daosheng Liao

Theses: Doctorates and Masters

English training schools in China are a new EFL phenomenon and infromation about EFL for 7-12 year old students is also new. There appears to be little research done regarding their motivation to learn EFL, and this constitutes a gap in theory addressing this area. This research attempts to fill the gap by investigating the factors that affect the motivation of learners in this age group. Questionnaires wers administered to 200 students and the responses were analysed to establish the motivational factors associated with learning English in training schools in Xi'an, China.

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Opto-Vlsi Based Wdm Multifunction Device, Selam T. Ahderom Jan 2004

Opto-Vlsi Based Wdm Multifunction Device, Selam T. Ahderom

Theses: Doctorates and Masters

The tremendous expansion of telecommunication services in the past decade, in part due to the growth of the Internet, has made the development of high-bandwidth optical net-works a focus of research interest. The implementation of Dense-Wavelength Division Multiplexing (DWDM) optical fiber transmission systems has the potential to meet this demand. However, crucial components of DWDM networks – add/drop multiplexers, filters, gain equalizers as well as interconnects between optical channels – are currently not implemented as dynamically reconfigurable devices. Electronic cross-connects, the traditional solution to the reconfigurable optical networks, are increasingly not feasible due to the rapidly increasing bandwidth of the …

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Implementation Of Arithmetic Primitives Using Truly Deep Submicron Technology (Tdst), Sholeh Eshraghian Jan 2004

Implementation Of Arithmetic Primitives Using Truly Deep Submicron Technology (Tdst), Sholeh Eshraghian

Theses: Doctorates and Masters

The invention of the transistor in 1947 at Bell Laboratories revolutionised the electronics industry and created a powerful platform for emergence of new industries. The quest to increase the number of devices per chip over the last four decades has resulted in rapid transition from Small-Scale-Integration (SSI) and Large-Scale-lntegration (LSI), through to the Very-Large-Scale-Integration (VLSI) technologies, incorporating approximately 10 to 100 million devices per chip. The next phase in this evolution is the Ultra-Large-Scale-Integration (ULSI) aiming to realise new application domains currently not accessible to CMOS technology. Although technology is continuously evolving to produce smaller systems with minimised power dissipation, …

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Year 7 Students' English Reading Comprehension And Attitudes And Behaviours: Collaborative Genre-Based Versus Traditional Teaching Methods In Thailand, Sanguansri Torok Jan 2004

Year 7 Students' English Reading Comprehension And Attitudes And Behaviours: Collaborative Genre-Based Versus Traditional Teaching Methods In Thailand, Sanguansri Torok

Theses: Doctorates and Masters

A new system-wide educational change has been introduced in Thailand that requires English as a foreign language (EFL) to be taught from primary to university level. This study investigates a genre-based method of teaching English to grade 7 secondary students in Thailand. The study was conducted in three phases. In phase 1, Rasch measures of reading comprehension (based on three kinds of genre texts) and of attitudes and behaviour towards genre-based learning of English were created for use in phase 2. An interval scale of 36 items (18 real and 18 ideal perspectives) was created from an original attitude and …

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The Construction Of A Business English Curriculum, Relevant To The Workplace, And Making Use Of Word Processing In Place Of Handwriting, Ladawan Wattanaboot Jan 2004

The Construction Of A Business English Curriculum, Relevant To The Workplace, And Making Use Of Word Processing In Place Of Handwriting, Ladawan Wattanaboot

Theses: Doctorates and Masters

Since the Thailand economic crisis in 1997 there has been a sense of urgency expressed in many areas of the society that businesses must modernize their practices and focus more on international trade and communication. Two important components of the changes required are better use of Information and Communication Technologies (ICT) and better use of the English language for business communication. In the education arena this has translated into the need to provide graduates with better skills in the use of English and computers. These two skill areas come together naturally in the study of Business English. In Thailand Rajabhat …

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The Effect Of Cross-Linked Learning On Visual Arts Education, Cassandra Zervos Jan 2004

The Effect Of Cross-Linked Learning On Visual Arts Education, Cassandra Zervos

Theses: Doctorates and Masters

This study examined how computer technology had an effect on a Year 9 visual arts education class with regard to the Western Australian four Arts Learning Outcomes (WA 4ALO). The research was administered concurrently with a learning approach called Cross-Linked Leaming (CLL) (Zervos, 1997), which consisted of three components: (1) the subject (e.g., visual arts education in relation to the WA 4ALO); (2) the learner (i.e., a target group and how they learn); and (3) the tool (e.g., computer technology). This study addressed the problem of how to promote learning in visual arts education, especially with visual arts theory. Historically, …

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Early Education : Experiences And Perceptions Of Minority Group Parents And Young Children, Judith Candy Jan 2004

Early Education : Experiences And Perceptions Of Minority Group Parents And Young Children, Judith Candy

Theses: Doctorates and Masters

In Australia there has been little research into the experiences and perceptions of education of parents from different minority groups whose young children attend school in this country. This study investigated the experiences that overseas born parents from non-English speaking backgrounds have of their own and their children's education in countries outside Australia, experiences of their children's early education in Australia, as well as those of their young children between 6 and 9 years of age attending school in this country. Despite marked differences in educational policies and practices operating in the participants' countries of origin, almost all parents in …

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