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Enhanced surfactant template recycling for continuous production of mesoporous silica materials

Mobil Crystalline Material 41 (MCM-41) has been synthesized by silica condensation on a template micelles formed at critical micelle concentration (CMC) dependent on solvent used. The template in the filtrate remained after synthesis gel filtration and the extracted template were utilized for repeated synthesis cycles until no MCM-41 material was formed. The template was burn off completely under calcination and treated with solvent extraction using the filtrate composed mainly of ethanol. The template recycling study in continuous MCM-41 synthesis can be applied in MCM-41 industry for synthesizing MCM-41 material utilizing recycled template to achieve cheaper process with reduced filtrate disposal.

Author: Lai, Jia Yen
Publication year: 2017
Publication type: Thesis (Masters)
Status: Live|Last updated:7 December 2017 10:32 AM
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Coherence of a bosonic Josephson junction

This research provides deeper understanding in one of quantum physics most fascinating phenomena: superfluidity. By cooling thousands of atoms to the coldest temperature in the universe we were able to explore a regime where particles behaves like waves and exhibit waves peculiar property of possessing a phase and thus the ability to interfere. Precise usage of radio-frequency fields coupled to the atoms allowed us to explore conditions under which the interaction between particles creates a coherent system, one that gives the same interference pattern every time is measured, and conditions where the interference pattern changes randomly after every measurement, thus making the system incoherent.

Author: Brolis, Alessandro
Publication year: 2017
Publication type: Thesis (PhD)
Status: Live|Last updated:7 December 2017 10:32 AM
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A review of person-centred fall prevention: A proposal for using augmented reality to assist with co-designing home modifications as part of a service improvement strategy

The thesis investigates older adult fall prevention. The research focuses on how to use goals as design drivers to curb home modification compliance problems. Control theory and multiple qualitative methods are employed to investigate: how should fall prevention home modification services be delivered to achieve person-centredness? Outcomes include a control driven person-centred fall prevention service model and an augmented reality home modification design application. Results demonstrate that active engagement in the design process is perceived to provide older adults with greater control within fall prevention services with opportunities to raise compliancy and decrease in falls through personalised fall prevention recommendations.

Author: Lo Bianco, Michael
Publication year: 2017
Publication type: Thesis (PhD)
Status: Live|Last updated:6 December 2017 4:32 PM
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Investigating digital design tutorial videos online

This thesis investigates the emergence of an online phenomenon and its relationship with digital design. This phenomenon involves geographically distributed individuals sharing information related to a craft or professional practice. In this instance design practice, via video content online, in the form of a tutorial video. Creation of this content involves designers and hobbyists, who are using design applications, recording them and then sharing online the digital processes they have recorded. These digital processes are then viewed by hundreds of thousands of other designers. This content and interaction with it is studied using a content analysis and social network analysis.

Author: Walker, Adam Douglas
Publication year: 2017
Publication type: Thesis (PhD)
Status: Live|Last updated:6 December 2017 4:32 PM
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A history of popular astronomy in Australia in the era of the lantern slide: 1825-1910

Astronomical ideas have shaped Australia’s national identity. This thesis gives a cultural history of those ideas in colonial Australia. It argues that the global imagination of the ‘land under the southern stars’ was shaped by a worldwide trade in knowledge and entertainment, as well as the local enactment of popular science through image, ink and voice. National identity, everyday experiences, ideals of science, apocalyptic visions and religious thought were aspects of popular astronomy in the nineteenth century that are still expressed today, demonstrating that scientific discovery can be rapid but cultural frameworks change more slowly.

Author: Martin Bush
Publication year: 2017
Publication type: Thesis (PhD)
Status: Live|Last updated:1 December 2017 3:32 PM
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Lifetime quality management for multi-tenant service-based systems

In this research, a systematic solution is proposed for the quality management for multi-tenant service-based systems (SBSs) in the cloud environment, which serve multiple tenants simultaneously. First, an SBS needs to be formed by composing existing services at build time stage. At runtime stage, the SBS needs to be monitored for any anomaly which once occurring, service adaptation needs to be facilitated to ensure the successful completion of SBS. By addressing the major challenges of quality management that arise at different stages of the lifetime of multi-tenant service-based systems, the quality of such systems can be guaranteed effectively and efficiently.

Author: Wang, Yanchun
Publication year: 2017
Publication type: Thesis (PhD)
Status: Live|Last updated:1 December 2017 3:32 PM
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Design of a modular battery pack for electric vehicles

Large-scale electrification of road transportation sector is essential for containing damage caused to our environment. However, high manufacturing cost and thermal stability of battery packs have been identified as major issues. Aggressive solutions to address them include developing new battery chemistries and replacing components of Li-ion battery cells with cheaper materials. In addition, mass-production of battery cells and battery packs is expected to provide further cost reduction. Therefore, design of such mass-producible battery packs is the main goal of investigation of this doctoral work.

Author: Arora, Shashank
Publication year: 2017
Publication type: Thesis (PhD)
Status: Live|Last updated:1 December 2017 3:32 PM
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New post-construction site characterisation models for low-rise buildings founded on highly expansive clays

In the past three decades many thousand houses built in the Western and Northern suburbs of Melbourne have experienced extensive damage due to chaotic climate and inadequate design and construction. The clayey soils upon which these houses were built are derived from the decomposition of volcanic soils which have high shrink and swelling properties. These soils are common throughout the world and are a particular problem as the climate becomes more active. The research for this thesis includes investigation data from-2005 to 2015 which recorded some of these problems and also led to the development of a more accurate calculation method of foundation movement.

Author: Lopes, Dominic
Publication year: 2017
Publication type: Thesis (PhD)
Status: Live|Last updated:6 December 2017 2:58 PM
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Switching behaviour in the Australian consumer banking industry

This thesis examines the influence of the 2010 banking reforms on consumers’ switching behaviour in Australia. It incorporates the Theory of Active Involvement (Greene 2013) to develop the proposed conceptual model. Two new knowledge variables were found crucial in the financial services context, namely: familiarity with reforms and financial illiteracy. Its findings reveal the strong influence of these variables on consumers’ switching intention and other behavioural outcomes. The beneficiaries of this study are the Australian consumers, policymakers and bank management. The overall findings would certainly facilitate the design of more consumer-centric banking policies in the future.

Author: Sharmin, Nusrat
Publication year: 2017
Publication type: Thesis (PhD)
Status: Live|Last updated:1 December 2017 3:32 PM
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Emotion-oriented requirements engineering

The adoption and use of technology is driven by perception, and issues such as privacy, burden on others, safety, security and feeling monitored play a significant role in technology adoption. In particular, emotional expectations of users are an important determinant, yet they are not systematically addressed in many technology projects, causing them to fail. This thesis presents a set of techniques that can assist technology creators to incorporate user’s emotional goals and deliver a more impactful solution.

Author: Kissoon Curumsing, Maheswaree
Publication year: 2017
Publication type: Thesis (PhD)
Status: Live|Last updated:27 November 2017 11:12 AM
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