Prediction of radiated noise from marine propellers. Underwater noise radiated from marine vessels is a significant problem for research, fishing and military vessels, and is a major source of pollution in the marine environment. The major source contributing to underwater noise is due to the propeller. This work will develop numerical models with experimental validation that can accurately predict the sources of noise generated by marine propellers and acoustic signatures of marine vessels due ....Prediction of radiated noise from marine propellers. Underwater noise radiated from marine vessels is a significant problem for research, fishing and military vessels, and is a major source of pollution in the marine environment. The major source contributing to underwater noise is due to the propeller. This work will develop numerical models with experimental validation that can accurately predict the sources of noise generated by marine propellers and acoustic signatures of marine vessels due to propeller motion. This work has great significance for Australia’s construction and military maritime industries. The technologies developed in this project are also applicable to rotors in other industries such as in aircraft, helicopters and wind turbines.Read moreRead less
The pull-out capacity of a newly developed grouted soil nailing system. The project aims to develop a new reliable and efficient grouted soil nail system for improving the performance of loose soft soils. Important applications of the research include the mitigation of landslides, which pose a major threat to communities and infrastructure worldwide. Laboratory small scale experiments and numerical analyses will be carried out to optimize the grouting efficiency and enhance the pull-out resistan ....The pull-out capacity of a newly developed grouted soil nailing system. The project aims to develop a new reliable and efficient grouted soil nail system for improving the performance of loose soft soils. Important applications of the research include the mitigation of landslides, which pose a major threat to communities and infrastructure worldwide. Laboratory small scale experiments and numerical analyses will be carried out to optimize the grouting efficiency and enhance the pull-out resistance between the grout and surrounded soil in the soil nail system. This integrated project will provide a valuable tool for engineers who wish to stabilize loose fill slopes or soft grounds in Australia and worldwide.Read moreRead less
Protecting Australia’s food future: shared responsibility for biosecurity. This project aims to investigate whether Australia’s ‘shared responsibility’ approach to biosecurity is capable of facing the growing threat from exotic pests and diseases. Through the analysis of policy documents and the use of semi-structured interviews, this project intends to contribute to a deeper understanding of the inter- and intra-organisational characteristics that influence implementation of biosecurity. Expect ....Protecting Australia’s food future: shared responsibility for biosecurity. This project aims to investigate whether Australia’s ‘shared responsibility’ approach to biosecurity is capable of facing the growing threat from exotic pests and diseases. Through the analysis of policy documents and the use of semi-structured interviews, this project intends to contribute to a deeper understanding of the inter- and intra-organisational characteristics that influence implementation of biosecurity. Expected outcomes include crucial insights into the capacity of a shared responsibility approach to protect agri-food production against biological threats, and the forms of institutional change that may be needed to enhance responsiveness to those threats. This in turn will benefit Australia's biosecurity system.Read moreRead less
Optimising Control of Hydroelectric Turbines Subject to Basslink Instability. With the introduction of Basslink, an underwater DC power cable across the Bass Strait, Tasmania will be connected to the national Electricity Market. Basslink will also provide an opportunity to utilise the significant water energy potential found throughout Tasmania. This project will examine the impact and disturbances due to the connection of Basslink with Tasmanian hydro power systems and develop control strategi ....Optimising Control of Hydroelectric Turbines Subject to Basslink Instability. With the introduction of Basslink, an underwater DC power cable across the Bass Strait, Tasmania will be connected to the national Electricity Market. Basslink will also provide an opportunity to utilise the significant water energy potential found throughout Tasmania. This project will examine the impact and disturbances due to the connection of Basslink with Tasmanian hydro power systems and develop control strategies for effective operation and control of hydro turbines with Basslink. Particular attention will be paid to the quality and reliability of electricity supply in Tasmania.Read moreRead less
Investigating the genetic basis for heterogeneous susceptibility of Tasmanian devils to a novel infectious cancer. This project will use genetics and modelling to reveal why Tasmanian devils in northwest Tasmania are not dying from facial tumour disease, a new, unusual infectious cancer threatening this iconic carnivore with extinction. This project will predict extinction risk, develop management options, and provide a new template for managing emerging wildlife diseases.
Micro-electrofluidic platforms for monitoring 3D human biological models. The ability to study living cells and human biological models (cell cultures) delivers greater understanding of basic biological function and response to applied (bio)chemical stimuli. Creating the physical environments to sustain biological models, and mimic natural conditions and fluidic pathways, is immensely challenging, yet essential to deliver meaningful observational data. This project will deliver this capability t ....Micro-electrofluidic platforms for monitoring 3D human biological models. The ability to study living cells and human biological models (cell cultures) delivers greater understanding of basic biological function and response to applied (bio)chemical stimuli. Creating the physical environments to sustain biological models, and mimic natural conditions and fluidic pathways, is immensely challenging, yet essential to deliver meaningful observational data. This project will deliver this capability through the convergence of expertise and innovation in analytical chemistry, materials science and cellular biology, ultilising the latest technology and understanding of 3D micro/electrofluidics, to enable the study and stimulation of advanced biological models, sustained within precisely controlled 3D micro-environments.Read moreRead less
Impact of Metal - Reactive Oxygen Species (ROS) Interactions on Growth and Toxicity of Ichthyotoxic Algae in Australian Coastal Waters. Toxic algal blooms in estuarine and coastal waters can have devastating economic and ecological impacts but remarkably little is known about the factors that control either organism growth or toxin severity. Recent studies suggest that the interplay between delivery of the nutrient trace metals iron and copper and the method via which the organism acts to assimi ....Impact of Metal - Reactive Oxygen Species (ROS) Interactions on Growth and Toxicity of Ichthyotoxic Algae in Australian Coastal Waters. Toxic algal blooms in estuarine and coastal waters can have devastating economic and ecological impacts but remarkably little is known about the factors that control either organism growth or toxin severity. Recent studies suggest that the interplay between delivery of the nutrient trace metals iron and copper and the method via which the organism acts to assimilate these metals is critical to the generation and aggressiveness of the toxins produced. These processes will be investigated in this study and conceptual and mathematical models will be developed which will assist in assessing management options for estuarine and coastal environments.Read moreRead less
Enhancing marine bathymetry using new generation satellite sensors. Highly accurate marine bathymetry are currently lacking in 72% of the global ocean including around Australia, particularly in shallow seas and near-shore coastal zones, contributing to various navigation and marine safety accidents. Ship surveys of the seafloor are time-consuming and expensive. Satellite altimetry data provide an alternative solution. This project will improve Australia’s marine bathymetry by using spatially co ....Enhancing marine bathymetry using new generation satellite sensors. Highly accurate marine bathymetry are currently lacking in 72% of the global ocean including around Australia, particularly in shallow seas and near-shore coastal zones, contributing to various navigation and marine safety accidents. Ship surveys of the seafloor are time-consuming and expensive. Satellite altimetry data provide an alternative solution. This project will improve Australia’s marine bathymetry by using spatially comprehensive and unprecedented data from new radar and laser satellite sensors. We aim to develop techniques for integration of the new data with other independent data sources, producing the most precise marine bathymetry for coastal terrain mapping, marine transport and safety management.Read moreRead less
Quantifying sea-level trends and extremes along Australia's coastal margin. Multi-decadal changes in sea-level, and sea-level extremes, cannot be well quantified along most global coastlines, including Australia's, because the high spatial variability of sea-level is under-sampled by the sparse set of long, high quality tide gauge records. Satellite altimetry provides an alternative data source with greater spatial sampling, yet experiences contamination from land within tens of kilometres from ....Quantifying sea-level trends and extremes along Australia's coastal margin. Multi-decadal changes in sea-level, and sea-level extremes, cannot be well quantified along most global coastlines, including Australia's, because the high spatial variability of sea-level is under-sampled by the sparse set of long, high quality tide gauge records. Satellite altimetry provides an alternative data source with greater spatial sampling, yet experiences contamination from land within tens of kilometres from the coast and also suffers from regionally correlated biases. This project proposes to address these problems through re-tracking radar altimetry waveforms to derive new data in the coastal margin, enabling the production of new inferences on sea-level change and extremes at dramatically improved spatial resolution around Australia.Read moreRead less
Flooding in Australia – are we properly prepared for how bad it can get? This project aims to investigate how floods have varied over the past 2000 years. Floods are a recurrent and natural part of Australia’s hydroclimate and are influenced strongly by climate variability. However, these influences are not yet completely understood or accounted for. This project will use novel insights from 2000 years of climate reconstructions to generate new knowledge about how bad flooding can get and what c ....Flooding in Australia – are we properly prepared for how bad it can get? This project aims to investigate how floods have varied over the past 2000 years. Floods are a recurrent and natural part of Australia’s hydroclimate and are influenced strongly by climate variability. However, these influences are not yet completely understood or accounted for. This project will use novel insights from 2000 years of climate reconstructions to generate new knowledge about how bad flooding can get and what causes flood frequency to change over time. A decision-making framework that allows for all the uncertainties associated with managing floods will also be developed. This will provide a critical evaluation of the accuracy of existing flood estimates, and also the reliability of infrastructure and policy based on those estimates.Read moreRead less