On the physical

Brachytherapy is a form of radiotherapy in which radioactive sources are placed at short distances from, or even inside the target volume. The use of high dose rate brachytherapy is a widely accepted and clinically proven treatment for some stages of prostate cancer. The aim of this project was to investigate potential improvements on two of the most important aspects of high dose rate (HDR) and pulsed dose rate (PDR) prostate brachytherapy - prostate definition and treatment delivery verification.

121p runthenight05 01-03-2023 6 3   Download

The aim of this thesis is to ensure that accurate calibration factors are provided to radiotherapy clinics when moving to the new linac-based primary standard calibrations. Specifically, this thesis quantifies the error introduced when using a calibration factor from the ARPANSA Elekta linac on a Varian high energy platform beam at 6 MV.

102p runthenight05 01-03-2023 7 3   Download

This study investigated the in vitro effects of ZnO NP and chemical UV filters commonly used sunscreens on the function of immortalised and primary skin cells. ZnO particulates (30 nm, 80 nm and 200 nm) were compared to the chemical UV filters: butylmethoxydibenzoylmethane (BMDBM) ethylhexylmethoxycinnamate (EHMC), ethylhexylsalicylate (EHS), homomenthylsalicylate (HMS) and 4-methylbenzylidenecamphor (MBC). Human epidermal keratinocytes (NHEK), epidermal melanocytes (NHEM), dermal fibroblasts (NHDF) and the immortalised keratinocyte HaCaT cell line were used in this study.

324p runthenight05 01-03-2023 9 3   Download

The limits of current micro-scale technology is approaching rapidly. As the technology is going toward nano-scale devices, physical phenomena involved are fundamentally different from micro-scale ones. Principles in classical physics are no longer powerful enough to explicate the phenomena involved in nano-scale devices. At this stage, quantum mechanic sheds some light on those topics which cannot be described by classical physics. The primary focus of this research work is the development of an analysis technique for understanding the behavior of strongly perturbed harmonic oscillators.

165p runthenight07 01-03-2023 6 3   Download

The main aims of physical geodesy are to study the shape of the Earth, its gravity field and the geoid which is an equipotential surface closest to the mean sea level. Precise geoid determination has been an important research topic in geodesy and geophysics in the past two decades. Scientists and government agencies all around the world have made great efforts on the development of highaccuracy geoid models.

182p runthenight07 01-03-2023 8 3   Download

The aim of this thesis was to investigate and characterise the effect on electron dosimetry that localising different forms of bolus, both approximately tissue equivalent and non tissue equivalent, in a non conventional, although reproducible locations, (ie not on the phantom surface). A series of experiments were derived to compare the differences in beam characteristics between the recognised conventional method of locating bolus on the surface to that of bolus supported by the Low Melting point Attenuator (LMA) Electron insert.

238p runthenight07 01-03-2023 4 4   Download

The objective of this research is to study the effect of onset of physical fatigue/stress during isometric and dynamic contractions based on the changes in physiological signal i.e. SEMG. Therefore, the intention of this present investigation is to assess the repeatability of common muscle fatigue measures, including amplitude and spectral measures of EMG and further, to determine the adequacy of different measures in detection of onset of localized muscle fatigue.

122p runthenight07 01-03-2023 7 3   Download

Tensegrity is a structural system constructed of tensile cables and compressive bars. This thesis proposes several general methods for creating tensegrity structures. The author has developed new methods for creating specific tensegrity cells and the corresponding computer code. Furthermore, the author has constructed various physical models to validate the methods. A proposal for an observation tower on top of the Eureka building in Melbourne has also been devised by the author.

88p runthenight07 01-03-2023 5 3   Download

In the last 10 years interest and activity in urban sonic design has expanded. The way we listen to, think about and understand sound determines the way we value, manage and design with it. However practitioners in the area would benefit from detailed forms of site documentation and analysis that go beyond physical sound measurement. This Masters explores the use of the Sonic Identity Model developed by Pascal Amphoux of CRESSON (the Centre for Research on Sonic Space and Urban Environment) in the early stages of urban sonic design.

162p runthenight04 02-02-2023 4 2   Download

This thesis aims to build on the current body of knowledge relating to the tertiary radiation contributions within an interventional radiology suite. An accurate estimation of tertiary radiation requires knowledge of the amount of patient-scattered radiation incident onto the concrete ceiling (the patient-scattered air kerma) and the fraction of the radiation incident on concrete that is scattered back towards the point of interest (the concrete-scattered air kerma).

125p runthenight04 02-02-2023 8 2   Download

This study has adopted a systematic approach to identify the extent to which 20 kHz ultrasound affects the particle size and solubility of different protein solutions containing 4%, 7% and 10% whey proteins, caseins or a mixture at a range of energy densities (15-400 J/mL) and various pH (4.0-9.0). Milk proteins hold a prominent place in the food industry as they are used in many manufactured products for their functionality and most importantly nutritional benefits.

136p runthenight04 02-02-2023 7 2   Download

The main aims of physical geodesy are to study the shape of the Earth, its gravity field and the geoid which is an equipotential surface closest to the mean sea level. Precise geoid determination has been an important research topic in geodesy and geophysics in the past two decades. Scientists and government agencies all around the world have made great efforts on the development of high-accuracy geoid models.

182p runthenight04 02-02-2023 11 3   Download

The primary aim of this research was to further develop the sensing and estimation module of the CHMS framework with an improved multimodal inference model of MWL as needed for the application in aerospace CPHS. Here the focus of this research was on the implementation of a multimodal inference model of MWL that would be developed and experimentally tested. This was done with the purpose of studying the viability of real‐time system adaptation in aerospace systems.

283p runthenight04 02-02-2023 9 3   Download

This research project "Prioritisation in infrastructure asset maintenance" aims to develop a reliable and accurate decision-making method for improving the maintenance prioritisation of irrigation infrastructure. The method should utilise agreed evaluation criteria, based on existing organisational policies and risk frameworks, and real-time data representing the physical condition of assets to prioritise them for maintenance.

172p runthenight04 02-02-2023 10 3   Download

The objective of this thesis is to examine the practice of infrastructure procurement in Australian State Governments in order to analyse how strategic the procurement function is. In doing so this thesis examines how Australian State Government agencies procure infrastructure projects and the extent to which they view the procurement process as an opportunity to deliver more than just a physical facility. This research contributes to both the body of knowledge focused on maximising the impact of public sector expenditure and the practice of infrastructure procurement.

349p runthenight04 02-02-2023 6 2   Download

This study primarily concentrates on the metaphors used in economic reports. Its aim is to have an insight into how metaphors are correlated to human physical experience and constructed in economic reports. In addition, the analysis of this correlation will set foundation for later categorization of the source domains which are exploited in the metaphors in these economic reports.

87p closefriend09 16-11-2021 23 4   Download

The study aimed to investigate the EMI program, especially related to the learners. It identified strategies that Vietnamese students used in order to deal with challenges they faced. Based on these findings, recommendations to promote learners‟ proficiency and improve the implementation of EMI policies are made.

59p closefriend09 16-11-2021 29 4   Download

Purpose: The purpose of thesis is to study the influence of temperature, pressure and dopant on the diffusion coefficient and ionic conductivity of the bulk material as CeO2, c-ZrO2, YDC and YSZ. For YDC and YSZ thin films, we find the thickness dependence of the lattice constant, diffusion coefficient and ionic conductivity

28p tunelove 10-06-2021 12 3   Download

Research purpose: Using computational chemistry methods to study the mechanism of hydrogenation CO on the transition metal catalyst systems of Ni, Cu, Co, bimetallic catalysts NiCu, CoCu and catalytic systems bearing cluster on oxide carriers: MgO, Al2O3 and activated carbon (AC); compare and clarify the role of catalyst centers in single or bimetallic catalyst systems; clarifies the role of carriers (MgO, Al2O3 and AC) in the hydrogenation of CO.

27p thebadguys 08-06-2021 26 4   Download

Aims of the study: Building competence model of designing competency assessment tool for physics pre-service teacher, proposing pedagogical principles based on modern teaching viewpoints, from which apply them to developing the competence of designing competency assessment tool for physics pre-service teacher.

28p thebadguys 08-06-2021 25 3   Download