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Investigation of the audio spotlight for active noise control. The focus of this project is to investigate a new technology - the audio spotlight - with the aim of developing an active noise control (ANC) system that incorporates the audio spotlight as a control source. The audio spotlight offers the potential to overcome or significantly modify the fundamental physical constraints that limit the performance of ANC systems that use conventional loudspeakers as control sources. Just as audio spot ....Investigation of the audio spotlight for active noise control. The focus of this project is to investigate a new technology - the audio spotlight - with the aim of developing an active noise control (ANC) system that incorporates the audio spotlight as a control source. The audio spotlight offers the potential to overcome or significantly modify the fundamental physical constraints that limit the performance of ANC systems that use conventional loudspeakers as control sources. Just as audio spotlights may be the most radical technological development in acoustics since the invention of the coil loudspeaker, successful incorporation of an audio spotlight into an active noise control system will revolutionise active noise control.Read moreRead less
Non-linear dynamics of magnetic bearing systems. The aim of this project is to gain a much deeper insight into the effects of non-linearities on the dynamic behavior and on the performance of active magnetic bearings(AMBs). This project will focus attention on stability analysis, bifurcation control, malfunction analysis, and nonlinear dynamic behavior. The expected outcomes are better understanding and prediction of nonlinear behavior and control of AMBs and improved guidelines for designing sa ....Non-linear dynamics of magnetic bearing systems. The aim of this project is to gain a much deeper insight into the effects of non-linearities on the dynamic behavior and on the performance of active magnetic bearings(AMBs). This project will focus attention on stability analysis, bifurcation control, malfunction analysis, and nonlinear dynamic behavior. The expected outcomes are better understanding and prediction of nonlinear behavior and control of AMBs and improved guidelines for designing safer and more effective AMBs.Read moreRead less
Topological Optimisation of Fluid Mixing. The proposed research is aimed at improving the efficiency of fluid mixers,
which in the long term has potential to reduce vastly the economic and
environmental costs associated with large-scale mixing processes in Australian
chemical industries. The research will not only impact on practical mixer
design, but will also develop important results in the application of topology
to the the field of chaotic dynamical systems. This project will also prov ....Topological Optimisation of Fluid Mixing. The proposed research is aimed at improving the efficiency of fluid mixers,
which in the long term has potential to reduce vastly the economic and
environmental costs associated with large-scale mixing processes in Australian
chemical industries. The research will not only impact on practical mixer
design, but will also develop important results in the application of topology
to the the field of chaotic dynamical systems. This project will also provide a
graduate student and post-doctoral researcher with training to pursue a career
in fluid dynamics or general applied mathematics research.
Read moreRead less
Viscous extensional flow and drop breakoff. Honey falling from a spoon is an everyday example of a viscous fluid in a free extensional flow which may eventually break up into drops. Such flows are important in modern technologies including ink-jet printing, welding, soldering and molten metal processing, polymer and glass fibre spinning, and for rheological measurement. We seek to increase understanding of the mechanisms governing such flows, particularly the role of initial conditions and the ....Viscous extensional flow and drop breakoff. Honey falling from a spoon is an everyday example of a viscous fluid in a free extensional flow which may eventually break up into drops. Such flows are important in modern technologies including ink-jet printing, welding, soldering and molten metal processing, polymer and glass fibre spinning, and for rheological measurement. We seek to increase understanding of the mechanisms governing such flows, particularly the role of initial conditions and the geometry of the original containing vessel, together with balances between forces such as inertia, gravity, viscosity, viscoelasticity, and surface tension, through a theoretical, computational and experimental study of the fluid mechanics.Read moreRead less
Efficient Transmission Strategies for Cooperative Wireless Ad Hoc Networks. The contribution of information and communications technologies to the national economy has been widely recognized. It enables wealth creation, employment and exports, underpinning many innovation processes. Immediate project benefits will be: contribution to the knowledge base and fundamental capabilities in wireless communication; education of future Australian academic and industrial innovators; raising the internati ....Efficient Transmission Strategies for Cooperative Wireless Ad Hoc Networks. The contribution of information and communications technologies to the national economy has been widely recognized. It enables wealth creation, employment and exports, underpinning many innovation processes. Immediate project benefits will be: contribution to the knowledge base and fundamental capabilities in wireless communication; education of future Australian academic and industrial innovators; raising the international profile of Australian research in the area of information technology. The proposed research is in areas of great commercial interest, addressing new directions and technologies for future wireless networks. Applied development of the outcomes will lead to valuable intellectual property for commercial exploitation.Read moreRead less
Adaptive Broadband Wireless Communication. The contribution of Information and Communications Technologies to the National Economy has been widely recognized. ICT enables wealth creation, employment and exports, and underpins many innovation processes. Immediate project benefits will be: Contribution to the knowledge base and fundamental capabilities in broadband wireless communication; Education of future Australian academic and industrial innovators; Raising the international profile of Austr ....Adaptive Broadband Wireless Communication. The contribution of Information and Communications Technologies to the National Economy has been widely recognized. ICT enables wealth creation, employment and exports, and underpins many innovation processes. Immediate project benefits will be: Contribution to the knowledge base and fundamental capabilities in broadband wireless communication; Education of future Australian academic and industrial innovators; Raising the international profile of Australian research in the area of information technology. Applied development of the outcomes will lead to valuable intellectual property with potential for commercial exploitation. Close links to Australian industry ensures Australian ICT companies stand to gain commercial advantage.Read moreRead less
Broadband to the bush: Polarization as a new resource in wireless cross-layer design. 'Broadband to the Bush' is a national priority - more than 1.6 million homes, small businesses and not-for-profit organizations in rural, regional, and remote Australia are set to benefit from broadband access to phone networks and the internet. The immediate challenges lie in overcoming poor download speeds and area coverage, as well as expensive access. This research will deliver cost and power-efficient re ....Broadband to the bush: Polarization as a new resource in wireless cross-layer design. 'Broadband to the Bush' is a national priority - more than 1.6 million homes, small businesses and not-for-profit organizations in rural, regional, and remote Australia are set to benefit from broadband access to phone networks and the internet. The immediate challenges lie in overcoming poor download speeds and area coverage, as well as expensive access. This research will deliver cost and power-efficient receiver architectures to provide end-user utility, and will train postgraduate researchers across traditional discipline boundaries in mathematics and engineering. The project represents an important contribution to frontier technologies in information and communications technology for building and transforming Australian industries.Read moreRead less
Improved image analysis: maximised statistical use of geometry/shape constraints. This project will improve image analysis to apply such applications as 3D street-scape reconstruction, synthetic inserts into video for special effects, autonomous navigation, and scene understanding. It will do so by maximally exploiting the geometry of planar surfaces (e.g. walls) and straight lines and other simple geometric shapes.
A novel approach to controlling boundary-layer separation. This project will involve fundamental research into the control of the fluid dynamical phenomena of boundary-layer separation and transition to turbulence. The project will be built upon a firm foundation of mathematical modelling of the complex behaviour of fluid flows that are near the onset of flow separation or turbulence. The project will produce results that will permit the development of control strategies that can be implemented ....A novel approach to controlling boundary-layer separation. This project will involve fundamental research into the control of the fluid dynamical phenomena of boundary-layer separation and transition to turbulence. The project will be built upon a firm foundation of mathematical modelling of the complex behaviour of fluid flows that are near the onset of flow separation or turbulence. The project will produce results that will permit the development of control strategies that can be implemented in a wide variety of important technological applications, such as drag reduction in the aerospace and ship industries as well as the control of stall (or loss of lift) in modern aircraft.Read moreRead less
Virtual acoustic sensors for active noise control systems. Traditional active noise control systems achieve the greatest noise reduction at the microphone error sensor(s). It is often desirable to achieve the maximum noise reduction remote from such sensors. Virtual sensing technology, the focus of this application, has the promise to replace traditional microphone sensing by projecting the zone of quiet away from the sensor microphones and directly into the ear of the user of the active noise c ....Virtual acoustic sensors for active noise control systems. Traditional active noise control systems achieve the greatest noise reduction at the microphone error sensor(s). It is often desirable to achieve the maximum noise reduction remote from such sensors. Virtual sensing technology, the focus of this application, has the promise to replace traditional microphone sensing by projecting the zone of quiet away from the sensor microphones and directly into the ear of the user of the active noise control system. This will revolutionise the sensing used in active noise control systems, and in doing so allow the realisation of active noise control in applications that have previously been infeasible.Read moreRead less