Dynamic Postural Stability And Falls Prediction In Older People During Walking In Real-world Environments.
Funder
National Health and Medical Research Council
Funding Amount
$680,793.00
Summary
The increased occurrence of falls with advancing age (33-50% of people aged >65 years) is a significant cause of mortality (1014 deaths in 1998), morbidity, and disability, affecting not only the individuals concerned, but the health care system (45,069 fall related hospitalizations in 1998 in Australia) and the broader community (National falls Prevention Initiative, 2004). Although there are a number of falls risk tests, most rely on determination of body sway while standing when the body i ....The increased occurrence of falls with advancing age (33-50% of people aged >65 years) is a significant cause of mortality (1014 deaths in 1998), morbidity, and disability, affecting not only the individuals concerned, but the health care system (45,069 fall related hospitalizations in 1998 in Australia) and the broader community (National falls Prevention Initiative, 2004). Although there are a number of falls risk tests, most rely on determination of body sway while standing when the body is static rather than in motion. Given that up to 70% of falls occur during walking and performing transfers, there is a clear need to develop tests of falls risk prediction that incorporate indices of postural stability measured during more dynamic activities. Test development needs to be underpinned by clear evidence of how age-related sensory and motor deficits affect postural stability during walking. The studies outlined in this application will develop and utilise new accelerometer-based technologies to determine the fundamental mechanisms underlying balance control during walking in older people. Specifically, this project will aim to develop a clear understanding of how changes in factors as vision, neuromuscular function (strength, stiffness) and proprioception contribute to the overall decline in stability and balance during walking in older people. Combined with physiological assessment measures developed by the research team, the research will allow the development of a more definitive predictive test of stability and falls risk. This test will be able to be used by health professionals for assessment of older people to determine the most effective therapeutic and-or exercise interventions to target those individuals at risk. This technology will also be adaptable to a biofeedback device to allow individuals to monitor their own stability.Read moreRead less
Design rules for nutritionally-functional grains. Design rules for nutritionally-functional grains. This project aims to design the most comprehensive specifications yet for nutritionally enhanced and health-modulating starch in grain-based foods. Why starch resists small intestinal digestion is not understood; this limits plant breeders and food (ingredient) manufacturers’ ability to tailor starch structures for optimal human nutritional value. This project will study how resistant starch survi ....Design rules for nutritionally-functional grains. Design rules for nutritionally-functional grains. This project aims to design the most comprehensive specifications yet for nutritionally enhanced and health-modulating starch in grain-based foods. Why starch resists small intestinal digestion is not understood; this limits plant breeders and food (ingredient) manufacturers’ ability to tailor starch structures for optimal human nutritional value. This project will study how resistant starch survives digestion in the small intestine and passed to the large intestine using a model for the large intestine to define the microbial fermentation of resistant starch fractions. This research is expected to improve breeding programmes and food ingredients and promote the nutritional value of grain-based foods.Read moreRead less
New Silent Anchors for Floating Offshore Wind Turbines in Calcareous Sand . Reliable wind energy sites are in deeper waters and require offshore floating structures to harness the wind energy. Such floating structures require a reliable anchoring system that is secure and environmentally friendly. Calcareous sands, rich in carbonate content, pose unique challenges with their behaviour difficult to predict. In this project, a novel silent anchoring system is investigated that can be installed wit ....New Silent Anchors for Floating Offshore Wind Turbines in Calcareous Sand . Reliable wind energy sites are in deeper waters and require offshore floating structures to harness the wind energy. Such floating structures require a reliable anchoring system that is secure and environmentally friendly. Calcareous sands, rich in carbonate content, pose unique challenges with their behaviour difficult to predict. In this project, a novel silent anchoring system is investigated that can be installed with minimum noise and vibration compared to more traditional counterparts. Through the state of the art development in numerical modelling and centrifuge modelling, this project will advance Australian Science and Practice in designing floating wind turbines in carbonate rich soils offshore and help energy transition.Read moreRead less
Stability Analysis of Power System with Massive Power Electronic Devices. The decarbonization of Australia's power systems is to integrate massive renewable energy sources which are interfaced with many power electronic devices (PEDs). The fast and complex dynamics of PEDs have significantly changed the nature of the power system, which limits the applicability of existing tools and methods to assess its stability. The goal of this project is to gain a comprehensive insight into the stability of ....Stability Analysis of Power System with Massive Power Electronic Devices. The decarbonization of Australia's power systems is to integrate massive renewable energy sources which are interfaced with many power electronic devices (PEDs). The fast and complex dynamics of PEDs have significantly changed the nature of the power system, which limits the applicability of existing tools and methods to assess its stability. The goal of this project is to gain a comprehensive insight into the stability of a futuristic power system with high penetration of PEDs. The intended outcomes will be a model and data jointly driven methodology for high-efficient and real-time stability assessment. The methodology developed in this project will support Australia's transition to a stable, secure, and low-carbon power grid.Read moreRead less
On-line Monitoring and Modelling of Electric Loads for Improving Operational Conditions of Power Systems. Recently, the Tasmanian Electricity System has been connected to the National Electricity Market through Basslink. The behaviour of loads to deviations in frequency and voltage becomes critical when transmission constraints begin to control market outcomes. The project will deliver vital information regarding load behaviour and models representing load responses to frequency and voltage excu ....On-line Monitoring and Modelling of Electric Loads for Improving Operational Conditions of Power Systems. Recently, the Tasmanian Electricity System has been connected to the National Electricity Market through Basslink. The behaviour of loads to deviations in frequency and voltage becomes critical when transmission constraints begin to control market outcomes. The project will deliver vital information regarding load behaviour and models representing load responses to frequency and voltage excursions with the objective of optimising power exchanges within the National Electricity Market. This will allow Tasmania to take advantage of various renewable technologies. The research will focus on the quality of electricity supply in Tasmania and the national power grid, and on the consequent economic benefits.Read moreRead less
Integration of Distributed and Renewable Power Generation into Electricity Grid Systems. This project aims to contribute into infrastructure development for connection of distributed and renewable power generation with electrical grid systems. The project proposes to develop innovative methodologies for cost-effective operation and control, protection coordination and fault detection, islanding operation, grid interaction and voltage instability with distributed and renewable generation. This pr ....Integration of Distributed and Renewable Power Generation into Electricity Grid Systems. This project aims to contribute into infrastructure development for connection of distributed and renewable power generation with electrical grid systems. The project proposes to develop innovative methodologies for cost-effective operation and control, protection coordination and fault detection, islanding operation, grid interaction and voltage instability with distributed and renewable generation. This project has special application for facilitating integration of regional renewable and distributed energy sources, such as wind, solar, mini-hydro, etc. into national grid systems.Read moreRead less
Power quality monitoring of grids with high penetration of power converters. The project aims to monitor and analyse power quality of grids within the frequency ranges of 0-2 kHz (existing regulations) and 2-150 kHz (new regulations). Power quality of grids deteriorate due to the high penetrations of inverter-based renewable energy systems. To estimate power quality of grids, the project expects to develop a multi-domain simulation model based on power grid configurations and operating condition ....Power quality monitoring of grids with high penetration of power converters. The project aims to monitor and analyse power quality of grids within the frequency ranges of 0-2 kHz (existing regulations) and 2-150 kHz (new regulations). Power quality of grids deteriorate due to the high penetrations of inverter-based renewable energy systems. To estimate power quality of grids, the project expects to develop a multi-domain simulation model based on power grid configurations and operating condition. Developed methodologies will assist network service providers to better analyse harmonics and resonances within low and high voltage power systems. Expected outcomes of this project are to assist partners to monitor and solve the existing communication issues of audio frequency load control and to address power quality issues arising from the increasing connection of renewable energy systems.Read moreRead less
Degradation conscious grid-scale battery energy management scheme. The project aims to develop an improved battery management system to smooth the intermittent contribution of renewable energy sources to the grid. As the level of penetration of renewable energy sources into electrical grids increases, energy storage will play an increasingly important role in solving some of the technical challenges caused by the intermittent nature of the renewable sources. The existing design methods for gri ....Degradation conscious grid-scale battery energy management scheme. The project aims to develop an improved battery management system to smooth the intermittent contribution of renewable energy sources to the grid. As the level of penetration of renewable energy sources into electrical grids increases, energy storage will play an increasingly important role in solving some of the technical challenges caused by the intermittent nature of the renewable sources. The existing design methods for grid-scale battery management systems do not take into consideration the degradation of the battery banks. Thus, this project aims to fill this gap by developing an electrochemical-based, degradation-conscious, battery management system. The proposed system aims to increase the life span and capacity use of the batteries.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE180101118
Funder
Australian Research Council
Funding Amount
$314,446.00
Summary
Enabling high photovoltaic penetration in power distribution networks. This project aims to develop a novel hybrid control method for power distribution grid network voltage regulation with high photovoltaic penetration. The outcome of this project will enable power utilities to cost-effectively regulate network voltage and ultimately remove barriers for future photovoltaic deployment. This will deliver significant economic benefits for both the wider community and utility providers, along with ....Enabling high photovoltaic penetration in power distribution networks. This project aims to develop a novel hybrid control method for power distribution grid network voltage regulation with high photovoltaic penetration. The outcome of this project will enable power utilities to cost-effectively regulate network voltage and ultimately remove barriers for future photovoltaic deployment. This will deliver significant economic benefits for both the wider community and utility providers, along with substantial environmental outcomes through increased use of sustainable energy sources.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE130101183
Funder
Australian Research Council
Funding Amount
$361,880.00
Summary
Next-generation expanders for renewable power applications: dealing with variability and uncertainty. This project will develop new strategies to design optimum expanders capable of maintaining good performance under uncontrollable working conditions. If these innovative design methods can be applied to engineering applications they will assist Australia to meet the Renewable Energy Target and to become an international leader in the field.