Plate Wave Tomography for Reconstruction of Laminar Defects. The proposed project promotes a conceptual advance in the application of plate waves for the quantitative reconstruction of laminar defects by investigating fundamental experimental and analytical aspects of a novel approach in plate wave ultrasonic tomography. A successful development will have a comparable significance in the area of health monitoring of thin structures as computer tomography had in medical imaging. Previous attempts ....Plate Wave Tomography for Reconstruction of Laminar Defects. The proposed project promotes a conceptual advance in the application of plate waves for the quantitative reconstruction of laminar defects by investigating fundamental experimental and analytical aspects of a novel approach in plate wave ultrasonic tomography. A successful development will have a comparable significance in the area of health monitoring of thin structures as computer tomography had in medical imaging. Previous attempts have ignored wave scattering effects, and therefore do not describe the correct physics of the problem. With its combined experimental-numerical approach, the proposed fundamental studies will help to identify the potential of plate wave ultrasonic tomography for in-situ health monitoring of realistic structures and smart materials design.Read moreRead less
Tomographic Imaging of Structural Damage in Plates. The potential benefit of structural health monitoring is highlighted by the socio-economic impact of structural failure, which may result in loss of lives, infrastructure disruptions and loss of productivity. This proposal promotes a fundamental advance in the novel concept of ultrasonic diffraction tomography for imaging early stage structural damage in plates. The successful development will represent an essential advance in quantitative non- ....Tomographic Imaging of Structural Damage in Plates. The potential benefit of structural health monitoring is highlighted by the socio-economic impact of structural failure, which may result in loss of lives, infrastructure disruptions and loss of productivity. This proposal promotes a fundamental advance in the novel concept of ultrasonic diffraction tomography for imaging early stage structural damage in plates. The successful development will represent an essential advance in quantitative non-destructive evaluation of thin structures and enable the transition of the technique to realistic structures with all the potential benefits in mechanical and civil infrastructure management resulting in improved safety, reduced maintenance costs and the use of more efficient structural designs.Read moreRead less
Fire Risk Evaluation of Commercial Buildings. An integrated systems risk-based model for fire safety has been developed for apartment buildings. A risk-based model must also be developed for commercial high-rise buildings taking into account the sub-models most relevant for these buildings. This requires a new approach and the development and integration of new submodels. Such a model does not currently exist but its development will allow for the cost-effective design of commercial buildings wh ....Fire Risk Evaluation of Commercial Buildings. An integrated systems risk-based model for fire safety has been developed for apartment buildings. A risk-based model must also be developed for commercial high-rise buildings taking into account the sub-models most relevant for these buildings. This requires a new approach and the development and integration of new submodels. Such a model does not currently exist but its development will allow for the cost-effective design of commercial buildings whilst still maintaining appropriate levels of fire safety.Read moreRead less
An Integrated Systems Analysis: Fire Growth and Severity in Enclosures. An integrated systems risk-based model for fire safety has been developed and has been internationally acclaimed. A new fire severity submodel urgently needs to be developed before ramifications of the World Trade Centre catastrophe impact on fire safety regulations. Current submodels seriously misrepresent the real fires. They were developed from 1970's experiments on 2-3 metre cube-like enclosures and predict that fires ....An Integrated Systems Analysis: Fire Growth and Severity in Enclosures. An integrated systems risk-based model for fire safety has been developed and has been internationally acclaimed. A new fire severity submodel urgently needs to be developed before ramifications of the World Trade Centre catastrophe impact on fire safety regulations. Current submodels seriously misrepresent the real fires. They were developed from 1970's experiments on 2-3 metre cube-like enclosures and predict that fires engulf enclosures. Recent preliminary experiments have revealed that real fires burn locally at windows and only appear to be all engulfing. The research will lead international collaboration involving extensive experiments and some modelling to be completed in twelve months.Read moreRead less
Bifurcation analysis with applications to design of power electronics systems. This project represents a fundamental study of nonlinear dynamics in power electronics systems. We expect that this project will result in knowledge advancement and technological innovations. In particular, rigorous algorithms will be resulted for the identification and analysis of nonlinear phenomena in power electronics systems. Special attention will be paid to design applications of power electronics systems. The ....Bifurcation analysis with applications to design of power electronics systems. This project represents a fundamental study of nonlinear dynamics in power electronics systems. We expect that this project will result in knowledge advancement and technological innovations. In particular, rigorous algorithms will be resulted for the identification and analysis of nonlinear phenomena in power electronics systems. Special attention will be paid to design applications of power electronics systems. The successful implementation of these methods and algorithms will definitely lead to development of frontier technology in engineering science, which is a National Priority Goal. Read moreRead less
The role of location on the effectiveness of smoke alarms. Smoke alarms in buildings are required by the Building Code of Australia (BCA), but the current requirements are less than optimal. This project will provide the basis for optimisation of smoke alarms and the number, interconnection and positioning of smoke alarms in residential buildings. This is expected to lead to reductions in fire fatalities, injuries and property loss.
The Identification and Development of Strategies for Increasing Engineering Enrolments. There is a continuing nation-wide decline in high school student enrolment in higher level mathematics and science. This is already leading to a reduction in the number of students undertaking university engineering programs in Australia and the situation is expected to worsen. This project is directed toward a better understanding of the reasons for the trend and the development of strategies to reverse it. ....The Identification and Development of Strategies for Increasing Engineering Enrolments. There is a continuing nation-wide decline in high school student enrolment in higher level mathematics and science. This is already leading to a reduction in the number of students undertaking university engineering programs in Australia and the situation is expected to worsen. This project is directed toward a better understanding of the reasons for the trend and the development of strategies to reverse it. It aims to 1. Evaluate the most effective strategies that increase student's interests and understanding of engineering and increase participation in engineering studies. 2. Develop an optimised national communication strategy for promoting engineering studies to secondary students.Read moreRead less
Enabling next-generation high-efficiency visible laser sources through advanced waveguide engineering. Lithium niobate has the potential to become the silicon of the optoelectronic industry. In order to realise its potential, fundamental problems associated with long term stability and cost of integration need to be solved. This project will develop a new hybrid fabrication platform that circumvents the traditional approaches pursued in the past for introducing waveguides into a lithium niobate ....Enabling next-generation high-efficiency visible laser sources through advanced waveguide engineering. Lithium niobate has the potential to become the silicon of the optoelectronic industry. In order to realise its potential, fundamental problems associated with long term stability and cost of integration need to be solved. This project will develop a new hybrid fabrication platform that circumvents the traditional approaches pursued in the past for introducing waveguides into a lithium niobate chip. This platform will enable the production of robust, low cost light sources for fields as diverse as biotechnology, environmental sensing and displays. This project will lead to new IP that will establish Australia as a leader in this field.Read moreRead less
High efficiency thin-film gallium arsenide solar cells. Recent developments in GaAs-based solar cells have led to efficiencies above 30%. Widespread adoption of GaAs-based solar cells for space applications has also brought about large reductions in material costs. However, GaAs cells are still much more expensive than silicon cells. This application addresses the development of a manufacturable technique for lifting off thin films of GaAs. This approach allows a significantly reduced cost due ....High efficiency thin-film gallium arsenide solar cells. Recent developments in GaAs-based solar cells have led to efficiencies above 30%. Widespread adoption of GaAs-based solar cells for space applications has also brought about large reductions in material costs. However, GaAs cells are still much more expensive than silicon cells. This application addresses the development of a manufacturable technique for lifting off thin films of GaAs. This approach allows a significantly reduced cost due to reduced materials usage, while maintaining high efficiency. Light-trapping for lifted-off cells will also be developed, which will allow the theoretical limit to performance to be approached, and fundamental processes in GaAs to be investigated.
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Development of Bulk Silicon Photovoltaic Devices. This project addresses a range of key issues relevant to silicon solar cells bound by the common feature of reducing cell costs by improving the cell's energy conversion efficiency. An innovative component of the project involves merging two streams of work whereby the high performance attributes of the world record efficiency laboratory devices are adapted for use with state-of-the-art commercial Solar Cell technology. The corresponding develo ....Development of Bulk Silicon Photovoltaic Devices. This project addresses a range of key issues relevant to silicon solar cells bound by the common feature of reducing cell costs by improving the cell's energy conversion efficiency. An innovative component of the project involves merging two streams of work whereby the high performance attributes of the world record efficiency laboratory devices are adapted for use with state-of-the-art commercial Solar Cell technology. The corresponding developments will be particularly important in an industry set to grow by more than a factor of ten over the next decade.Read moreRead less