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Found 17 matching student topics

Displaying 1–12 of 17 results

Laser light sensors that see through containers

Raman scattering has been used as a powerful 'fingerprinting' technique for more than 80 years, and is widely used by security and law enforcement for detecting hazardous threats. To better safeguard the community, QUT has developed a unique eye -safe laser Raman sensing system for detecting threats, that works at distance from a target (> 10 m) and operates in real time. Increasingly however, threats are being concealed in order to avoid detection. This project will investigate what range of …

Study level
Honours, Vacation research experience scheme
Faculty
Faculty of Science
School
School of Chemistry and Physics

Separating nonlinear optical effects in optical limiters

Optical limiting uses a medium’s nonlinear response to allow light at low intensities to be transmitted, but restricts transmission at high intensities so as to safeguard sensitive detectors including the eye. A popular nonlinear process used in optical limiters is two photon absorption where two high intensity light photons are simultaneously absorbed thereby reducing the light transmission through the medium. Unfortunately, in gold nanoparticle optical limiters a second nonlinear process can arise – saturated absorption which leads to an increase …

Study level
Honours, Vacation research experience scheme
Faculty
Faculty of Science
School
School of Chemistry and Physics
Research centre(s)
Centre for Materials Science

Optical coherence tomography imaging of arterial tissue

The sudden rupture of vulnerable atherosclerotic plaques and subsequent thrombosis formations are responsible for most acute vascular syndromes, such as myocardial infarction and stroke. Many victims who are apparently healthy die suddenly with no prior symptoms. Such deaths could be prevented through surgery or alternative medical therapy, if vulnerable plaques were identified earlier in their natural progression. While intravascular methods have been developed to visualize various features of vulnerable plaques, there is no single technique that can accurately predict plaque …

Study level
PhD, Master of Philosophy, Honours, Vacation research experience scheme
Faculty
Faculty of Engineering
School
School of Mechanical, Medical and Process Engineering
Research centre(s)
Centre for Biomedical Technologies
Centre for Biomedical Technologies

Plasmonic optical trapping

Light irradiation is commonly accepted to be the best stimulus to artificially stimulate chemical systems. Over the past few decades tremendous progress has been made in the synthesis and application of photo switchable catalysts with the capability of gaining control over when and where bond formations and dissociations take place in molecules. On an environmentally friendly plasmonic metal nanoparticle surface, light irradiation can change the reactants adsorption on the surface, and thus change the relative ratio of the reactants for …

Study level
PhD, Master of Philosophy, Honours, Vacation research experience scheme
Faculty
Faculty of Science
School
School of Chemistry and Physics
Research centre(s)
Centre for Materials Science

Optimal ecosystem management in rapidly changing systems

Delays in acting in collapsing ecosystems can be catastrophic. With every passing year, the chances that the ecosystem has progressed past some point of no return increases. Yet the research and development needed to develop a new technology can take a long time. Balance between these two dynamic processes is needed to determine the optimal length and effort for developing new technologies. This project will develop a method for finding the optimal schedule for developing technological readiness, social acceptability, a …

Study level
PhD, Master of Philosophy, Honours, Vacation research experience scheme
Faculty
Faculty of Science
School
School of Mathematical Sciences
Research centre(s)
Centre for Data Science
Centre for the Environment

Mathematically optimising value of information for biodiversity management

When planning environmental management, data are only valuable if they lead to improved outcomes. As new monitoring technologies and approaches are developed, it is critical that they are used optimally to focus on the most important information gaps.Monitoring technologies should only be adopted if they can deliver improved management utility, and new data should be rapidly gathered in locations where early information could offer warning signals of future ecosystem change. Mathematical and statistical approaches to assessing the value of new …

Study level
Vacation research experience scheme
Faculty
Faculty of Science
School
School of Mathematical Sciences
Research centre(s)
Centre for Data Science
Centre for the Environment

Optimal conservation management in uncertain Antarctic environments

Species and ecosystems in Antarctica are threatened. Optimal biodiversity conservation is an interdisciplinary field combining mathematical modelling and optimisation with ecology and conservation. We can use mathematics to understand the system, model how management actions might impact it, and then optimise which actions should be used. For example, we can explore where protected areas should be placed, how species should be managed, or how tourist impacts should be reduced. However, the complexities of conservation in Antarctica necessitate the application of …

Study level
PhD, Master of Philosophy, Honours
Faculty
Faculty of Science
School
School of Mathematical Sciences
Research centre(s)
Centre for Data Science
Centre for the Environment

Optimising outcomes for children and adolescents diagnosed with cancer

Each year in Australia, around 1200 children and adolescents are diagnosed with cancer and while most (84%) will achieve 5-year disease free survival, all will suffer significant distress from symptoms associated with cancer and treatment.High symptom burdens can lead to numerous negative outcomes that persist for many years beyond cancer treatment. These include disruptions normal development, schooling, relationships, careers, and living an independent life. This is concerning, because young people have a long time to live with these negative consequences, …

Study level
PhD, Master of Philosophy, Honours
Faculty
Faculty of Health
School
School of Nursing
Research centre(s)
Centre for Healthcare Transformation
Cancer and Palliative Care Outcomes Centre

Optimising delivery of a novel nose-to-brain treatment for brain cancer

Glioblastoma multiforme (GBM) is an aggressive brain cancer with no curative treatment and poor prognosis. One of the biggest challenges with treating GBM is the inability of treatment to cross the blood-brain barrier resulting in poor drug distribution in the brain. Fortunately, scientists have recently developed a novel nose-to-brain delivery system that uses nanoparticles loaded with a chemotherapy drug called paclitaxel. Initial treatment investigations in vivo are showing significant promise in reducing and controlling the tumour burden. While exciting, before …

Study level
Master of Philosophy, Honours, Vacation research experience scheme
Faculty
Faculty of Science
School
School of Mathematical Sciences

Optimising sampling design for model discrimination of coral reef recovery

Natural disturbances including severe storms and bleaching events have devastating impacts on the Great Barrier Reef's health. Unfortunately, the increasing pressures associated with climate change are causing these disturbances to occur more frequently, for a longer duration and with more intensity.It's essential to understand the recovery dynamics between major disturbances so we can manage the health of the Great Barrier Reef under increased environmental pressures. Many studies modelling reef recovery assume a specific form for the growth dynamics. However, the …

Study level
PhD, Master of Philosophy, Honours
Faculty
Faculty of Science
School
School of Mathematical Sciences
Research centre(s)
Centre for Data Science

The cosmic star formation history measured from Evolutionary Map of the Universe (EMU) data

The cosmic star formation history (SFH) describes how the rate of star formation in the universe has evolved. This has been measured with increasing precision in recent decades. Using highly sensitive radio detections, this cosmic star formation history can be determined to the highest level of precision yet.The Evolutionary Map of the Universe (EMU) radio survey will measure up to 30 million radio sources in the coming few years. We estimate half of these will arise from star formations.Using the …

Study level
PhD, Master of Philosophy
Faculty
Faculty of Science
School
School of Chemistry and Physics

The evolution of dust obscuration in galaxies

Dust in galaxies is ubiquitous. It arises from the end stages of stellar evolution, with heavy elements formed over a star's lifetime being distributed throughout a parent galaxy as the star goes supernova.There are numerous approaches to measuring dust obscuration in galaxies. These approaches show a broad trend toward heavier obscuration in galaxies that support higher levels of star formation. However, there is relatively little understanding for why this relationship exists.By analysing the properties of galaxies in the Galaxy And …

Study level
PhD, Master of Philosophy
Faculty
Faculty of Science
School
School of Chemistry and Physics

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