Material boundaries in ultrasonics: New methods and in vitro studies in biomedical phantoms. Ultrasound is an indispensable part of healthcare worldwide. The next wave of applications will see ultrasound pulses used to closely probe suspected disease sites and to directly manipulate bioactive agents. For safe and effective use of such techniques it is essential to know the ultrasound field at the disease site. This project will develop simulation methods to achieve the fast, accurate and case-sp ....Material boundaries in ultrasonics: New methods and in vitro studies in biomedical phantoms. Ultrasound is an indispensable part of healthcare worldwide. The next wave of applications will see ultrasound pulses used to closely probe suspected disease sites and to directly manipulate bioactive agents. For safe and effective use of such techniques it is essential to know the ultrasound field at the disease site. This project will develop simulation methods to achieve the fast, accurate and case-specific results required. Community healthcare will benefit, through better diagnostic capabilities and customized treatment. Australia is well placed to profit further from this research, in view of the growing worldwide demand for more sophisticated, knowledge-based techniques in medicine.Read moreRead less
The effect of vessel wall structures on ultrasonic flow velocity measurements. The flow velocity within a nearly cylindrical vessel is often measured using an external ultrasound transducer via the Doppler principle. Thick vessel walls may present acoustically mismatched structures. This project aims to determine how such walls redistribute the energy in an interrogating ultrasound beam, and how this in turn affects the measurement of flow velocities. This is a fundamental issue, especially imp ....The effect of vessel wall structures on ultrasonic flow velocity measurements. The flow velocity within a nearly cylindrical vessel is often measured using an external ultrasound transducer via the Doppler principle. Thick vessel walls may present acoustically mismatched structures. This project aims to determine how such walls redistribute the energy in an interrogating ultrasound beam, and how this in turn affects the measurement of flow velocities. This is a fundamental issue, especially important in vascular disease where blood flow and blood vessels are affected by wall irregularities and lesions. The new knowledge generated by this project will have practical importance and, by identifying achievable outcomes, potentially major cost savings, in medical ultrasound.Read moreRead less
Microscopic Origin of the Enhanced Flux Pinning in Nano-Doped MgB2 Superconductors. Magnesium diboride (MgB2) has advantages over other superconductors in terms of high performance and low costs for a wide range of applications, such as superconducting power cables, superconducting magnetic energy-storage devices, transformers, fault current limiters and motors. Besides the apparent economic benefits, the application of superconductivity will significantly reduce the green-house gas emission. Th ....Microscopic Origin of the Enhanced Flux Pinning in Nano-Doped MgB2 Superconductors. Magnesium diboride (MgB2) has advantages over other superconductors in terms of high performance and low costs for a wide range of applications, such as superconducting power cables, superconducting magnetic energy-storage devices, transformers, fault current limiters and motors. Besides the apparent economic benefits, the application of superconductivity will significantly reduce the green-house gas emission. This project will advance the practical applications of MgB2 by understanding the mechanism to improve critical current density.Read moreRead less