The Southern Ocean boundary layer: winds, turbulence, sea spray and clouds. Both satellite products and climate models have large biases in the energy and water budgets over the Southern Ocean (SO). This is a direct consequence of a poor understanding of the structure and dynamics of the SO atmospheric boundary layer, which has arisen from an inability to make the necessary observations in this harsh environment. Due to the availability of new Australian research infrastructure, large steps forw ....The Southern Ocean boundary layer: winds, turbulence, sea spray and clouds. Both satellite products and climate models have large biases in the energy and water budgets over the Southern Ocean (SO). This is a direct consequence of a poor understanding of the structure and dynamics of the SO atmospheric boundary layer, which has arisen from an inability to make the necessary observations in this harsh environment. Due to the availability of new Australian research infrastructure, large steps forward are now possible with modest investment. This project will conduct and combine observations from the recently acquired marine vessel, RV Investigator, and the collocated airborne and surface observations to understand the structure and evolution of the unique, pristine SO boundary layer and to evaluate satellites and climate models.Read moreRead less
GBR as a significant source of climatically relevant aerosol particles. Every cloud drop is formed from a microscopic aerosol particle, known as a cloud condensation nuclei (CCN). In unpolluted environments the CCN particles originate from biogenic sources. Determining the magnitude and driving factors of biogenic aerosol production in different ecosystems is crucial to the development and improvement of climate models. This project aims to determine the mechanisms of new particle production fro ....GBR as a significant source of climatically relevant aerosol particles. Every cloud drop is formed from a microscopic aerosol particle, known as a cloud condensation nuclei (CCN). In unpolluted environments the CCN particles originate from biogenic sources. Determining the magnitude and driving factors of biogenic aerosol production in different ecosystems is crucial to the development and improvement of climate models. This project aims to determine the mechanisms of new particle production from one of the biggest ecosystems in Australia, the Great Barrier Reef. It is expected that the project will establish whether marine aerosol along the Queensland coast is coral-derived and show that this aerosol can affect the CCN concentration and therefore cloud formation and the hydrological cycle.Read moreRead less
Southern Ocean aerosols: sources, sinks and impact on cloud properties. This project aims to provide fundamental process-level understanding of atmospheric aerosol processes over the Southern Ocean, a region that has a profound influence on the Australian and global climate and where climate models perform poorly. Comprehensive observations during 3 Southern Ocean voyages and land-based measurements will enhance our knowledge of aerosols and cloud formation in that region and provide much-needed ....Southern Ocean aerosols: sources, sinks and impact on cloud properties. This project aims to provide fundamental process-level understanding of atmospheric aerosol processes over the Southern Ocean, a region that has a profound influence on the Australian and global climate and where climate models perform poorly. Comprehensive observations during 3 Southern Ocean voyages and land-based measurements will enhance our knowledge of aerosols and cloud formation in that region and provide much-needed data for improving global climate models. Expected outcomes include more accurate seasonal and latitudinal representations of Southern Ocean aerosol populations, properties and sources. The main benefit includes improvements in weather forecasting and future climate projection for Australia and the Southern Hemisphere.Read moreRead less
Cloudiness over the Southern Ocean: reducing a key knowledge gap and source of climate model uncertainty. Southern Ocean clouds are key ingredients of the global climate system and yet are only poorly understood and poorly represented in climate models. Through the use of advanced observational analysis techniques this research will provide a deep understanding of key Southern Ocean cloud regimes and improve their representation in models.
Renewable energy generation from flow-induced vibration. Much engineering effort has been expended to eliminate vibration of marine structures. This project seeks to provide the basis for the development of tidal energy harnessing, by deliberately amplifying and harnessing vibration. This technology offers the promise of capturing clean, zero-emissions energy, while presenting no risk to marine life.
Three-dimensional structure determination of biomolecular assemblies from sparse data of different length scales. New computer algorithms will be combined with sparse experimental structure restraints, obtained with novel protein chemistry technologies, to generate accurate three-dimensional (3D) models of proteins and protein assemblies in solution and in the solid state. The new strategies will greatly increase the number of protein targets amenable to rational drug design.
Tags and algorithms for studies of protein structures and interactions. This project aims to develop a new set of tools to structurally characterise protein-protein and protein-ligand interactions that are difficult or impossible to analyse by other means, facilitate tracking of proteins in biological material and identify interaction partners. The project seeks to focus on the synthesis of new unnatural amino acids and tags for site-specific protein labelling, and a range of techniques for 3D s ....Tags and algorithms for studies of protein structures and interactions. This project aims to develop a new set of tools to structurally characterise protein-protein and protein-ligand interactions that are difficult or impossible to analyse by other means, facilitate tracking of proteins in biological material and identify interaction partners. The project seeks to focus on the synthesis of new unnatural amino acids and tags for site-specific protein labelling, and a range of techniques for 3D structure analysis in solution, in particular NMR spectroscopy. New algorithms are expected to be developed for optimizing NMR spectroscopy and structure calculations from sparse data. The integrated set of tools is expected to deliver better and faster structure analysis and target characterisation to accelerate early stages of drug discovery.Read moreRead less
Unlocking the diverse property profile of ultra-lightweight magnesium alloys. This project aims to develop the theory behind why micro alloying contributes to the formation of surface film properties. The exemplar is a prototype Magnesium-Lithium (Mg-Li) base alloy, with high specific-strength and corrosion resistance. This project will lead to the development of a new processable ultra-lightweight, corrosion resistant Mg-Li alloy family that is stronger than the prototype alloy, and with, at le ....Unlocking the diverse property profile of ultra-lightweight magnesium alloys. This project aims to develop the theory behind why micro alloying contributes to the formation of surface film properties. The exemplar is a prototype Magnesium-Lithium (Mg-Li) base alloy, with high specific-strength and corrosion resistance. This project will lead to the development of a new processable ultra-lightweight, corrosion resistant Mg-Li alloy family that is stronger than the prototype alloy, and with, at least, comparable ductility and corrosion resistance. Not only will the outcomes of the work be a fundamental advance to the fields of metallurgy and corrosion science, they will lead to the identification of an optimised compositional window for creating our second generation Mg-Li alloy family capable of being manufactured into ultra-lightweight, corrosion resistant metal products.Read moreRead less
Design of tuneable microstructures for additive manufacturing. The project intends to develop methods to tune the microstructure of materials in additive manufacturing so that components can be manufactured with maximum productivity and properties. Additive manufacturing is leading the mass customisation of manufacturing. Designed tunable microstructures enable structure and properties to be tailored for specific applications. One of the greatest challenges, however, is how to control the scale ....Design of tuneable microstructures for additive manufacturing. The project intends to develop methods to tune the microstructure of materials in additive manufacturing so that components can be manufactured with maximum productivity and properties. Additive manufacturing is leading the mass customisation of manufacturing. Designed tunable microstructures enable structure and properties to be tailored for specific applications. One of the greatest challenges, however, is how to control the scale and morphology of the microstructure. This project aims to use the interdependence model of grain refinement to control and design grain sizes. The project first plans to investigate the near-rapid solidification conditions in aluminium alloys. It then plans to re-design the harder-to-manufacture titanium alloys to improve grain size control.Read moreRead less
The Quantum Dot SPASER. Can we replace electrons with photons in future computers? This project provides two steps toward this goal. By combining advanced materials with ultra-small metallic structures, a new nano-sized form of a laser, called the spaser will be realised. Furthermore, a key component of a computer, a nanoscale modulator, will be demonstrated.