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University of Wollongong

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2007

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Soft Ground Improvement By Vacuum-Assisted Preloading, Cholachat Rujikiatkamjorn, Buddhima Indraratna Dec 2007

Soft Ground Improvement By Vacuum-Assisted Preloading, Cholachat Rujikiatkamjorn, Buddhima Indraratna

Faculty of Engineering - Papers (Archive)

This paper describes the behaviour of soft soil foundation stabilized with vacuum-assisted preloading at the New Bangkok International Airport, Thailand. An analytical solution considering the variation of soil permeability and compressibility and a finite element analysis based on an equivalent plane strain model developed by the authors are employed to investigate the performance of the test embankment. The converted equivalent plane strain parameters are incorporated in the finite element code ABAQUS. The associated settlement, excess pore pressure and lateral movement are predicted and compared with the available field measurement. The data indicate that the efficiency of the prefabricated vertical drains …

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Expressions Of The Calabrian Diaspora In Calabrian Australian Writing, Gaetano Rando Dec 2007

Expressions Of The Calabrian Diaspora In Calabrian Australian Writing, Gaetano Rando

Faculty of Arts - Papers (Archive)

This chapter is an exhaustive study of literary works, memoirs, theatre and film produced by first and second generation Calabrian Australians.

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Italian Australian Studies: A (Post)Colonial Perspective, Gerry Turcotte, Gaetano Rando Dec 2007

Italian Australian Studies: A (Post)Colonial Perspective, Gerry Turcotte, Gaetano Rando

Faculty of Arts - Papers (Archive)

This chapter introduces the volume and discusses related theoretical issues. This volume seeks to map an understanding of the Italian experience onto the broader picture of diasporic stories, though with an anchor in the Australian-Italian experience. It brings together key essays and testimonials that frame a picture of Italy’s rich legacy at “home”, in Europe more widely, and in the (post)colonial sphere, with a particular emphasis on the Australian experience. The essays collected here focus on the way an Italian Australian story has emerged and evolved in its own unique way. In some respects it might be possible to defi …

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The Convergence Of Ifrs In China: A View On The Influence Of Political Ideology On Chinese Accounting Profession, Y. Zhang, J. Andrew, H. W. Collier Dec 2007

The Convergence Of Ifrs In China: A View On The Influence Of Political Ideology On Chinese Accounting Profession, Y. Zhang, J. Andrew, H. W. Collier

Faculty of Commerce - Papers (Archive)

A historical perspective lens may be useful to help people understand the world of accounting and accounting research. Some believe that the role that accounting plays in current society could be better understood by reviewing its historical association with the institutionalization development within which it operates. Accounting as it is practiced in capitalist system has been predominately viewed as a technical and context-free activity. However, if a meta-level concern addressing broad structural and institutional environment from which accounting emanated is absent, there must be doubt that the conventional accounting can claim to be comprehensible and to contain true information. This …

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Perceiving A Corridor With Ctfm Ultrasonic Sensing, S. M. Antoun, Phillip J. Mckerrow Dec 2007

Perceiving A Corridor With Ctfm Ultrasonic Sensing, S. M. Antoun, Phillip J. Mckerrow

Faculty of Informatics - Papers (Archive)

When deprived of sight humans adapt and use other senses for navigation. Most rely on touch (long cane), but some use auditory perception. We have observed a blind teenager echolocating using sounds (clicks) he makes with his mouth. More commonly, an ultrasonic sensor is used as a navigational aid to scan the path and environment. The echoes blind people perceive are interpreted by each individual to form an auditory scene where clear paths and obstacles are identified. With this information, the blind user threads his/her way safely through the space scanned. The work we describe here seeks to mimic a …

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Substitute Three-Dimensional Perception Using Depth And Colour Sensors, Simon Meers, Koren Ward Dec 2007

Substitute Three-Dimensional Perception Using Depth And Colour Sensors, Simon Meers, Koren Ward

Faculty of Informatics - Papers (Archive)

The development of sensor-actuator systems that can provide the user with perception of the environment without any use of the eyes is a difficult task. Firstly, the sensors must work effectively under differing conditions. Secondly, the actuators (or auditory feedback) must present the environmental information to the user in a manner that is easy to understand. Thirdly, the whole system needs to be compact, efficient and robust to be practical for a blind person to use. This paper firstly reviews current research in the area of substitute vision systems and discusses their limitations. We then provide details of the substitute …

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Leaders Can Learn To Change; Some Do: A Qualitative Study, George K. Kriflik, R. Jones Dec 2007

Leaders Can Learn To Change; Some Do: A Qualitative Study, George K. Kriflik, R. Jones

Faculty of Commerce - Papers (Archive)

The behaviour of organisational subordinates is significantly affected by the attitudes and actions of their supervisor. By changing themselves, leaders can therefore have a crucial impact not only on the behaviour of their subordinates but also on the extent to which those subordinates perceive that they are achieving their organisational potential. This paper presents a conceptual model of the process through which organisational leaders can attempt to change themselves with the objective of changing the behaviour of their subordinates. Using a grounded methodology, data has been collected and analysed from a large Australian public sector bureaucracy by means of participant …

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Vacuum Consolidation Effects On Lateral Yield Of Soft Clays As Applied To Road And Railway Embankment, Buddhima Indraratna, Cholachat Rujikiatkamjorn, G. Mcintosh, A. Balasubramaniam Dec 2007

Vacuum Consolidation Effects On Lateral Yield Of Soft Clays As Applied To Road And Railway Embankment, Buddhima Indraratna, Cholachat Rujikiatkamjorn, G. Mcintosh, A. Balasubramaniam

Faculty of Engineering - Papers (Archive)

The use of vertical drains with vacuum preloading is considered as the most effective and economical method for improving soft clays (normally consolidated to lightly over-consolidated) to eliminate settlements of the permanent infrastructure. Application of vacuum pressure via prefabricated vertical drains promotes radial flow consolidation enhancing the shear strength of the compressed ground. In this paper, the mechanisms of the vacuum preloading system based on current practices are described through the selection of the important design parameters. The equivalent plane strain solution for both Darcian and non-Dracian flow are presented to predict the excess pore pressures, lateral and vertical displacements. …

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The Need For Choice And Control: Preparing The Digital Generation To Be The Next Generation Of Teachers, Brian Ferry, L. Kervin, L. Carrington, K. Prcevich Dec 2007

The Need For Choice And Control: Preparing The Digital Generation To Be The Next Generation Of Teachers, Brian Ferry, L. Kervin, L. Carrington, K. Prcevich

Faculty of Education - Papers (Archive)

In this paper we describe the design of an online classroom-based simulation, ClassSim, developed to enable pre-service teachers to interact with a virtual classroom environment as they assume the role of the teacher. The project built on the research of Herrington and Oliver by investigating how the design elements of authentic learning environments they identified can be operationalised in an on-line simulation of a classroom. The aim of the simulations was to progressively develop preservice teachers' understanding of the complex decisions needed to plan and implement reading, writing and spelling lessons for lower primary children. With the support of a …

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Information And Computer Technology Security: Furthering The Research Agenda, Karin Garrety, M Barrett Dec 2007

Information And Computer Technology Security: Furthering The Research Agenda, Karin Garrety, M Barrett

Faculty of Commerce - Papers (Archive)

Despite the development of advanced technical devices and procedures, the information held in computer systems remains vulnerable to attack and/or inadvertent mishandling, resulting in security breaches. Increasingly, researchers and practitioners are recognising that information security is not merely a technical issue, but is heavily influenced by social and cultural factors. This paper argues that post-cognitivist approaches to human computer interaction, which focus on situated reasoning and the contextual, relational aspects of computer-mediated activities and interactions, provide a promising set of concepts with which to explore non-technical users’ everyday security practices and beliefs. We review the limited research that has been …

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Sharing Teaching Resources, Russ Pennell Dec 2007

Sharing Teaching Resources, Russ Pennell

Senior Deputy Vice-Chancellor and Deputy Vice-Chancellor (Education) - Papers

UOW established a digital repository (or CMS) in 2006 to manage and deliver digital learning resources, for use initially by the UOW's Graduate School of Medicine (GSM) and delivered through Blackboard Vista. The system (Equella by TLE) is also intended to advance teaching in UOW through the sharing of teaching resources.

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Cities Of Innovation: Exploring The Role Of Local Community Organisations In ‘Constructing Advantage’, Samuel E. Garrett-Jones, Michael Gross, Gregory Kerr, S. Kotevski, S. Zaeemdar Dec 2007

Cities Of Innovation: Exploring The Role Of Local Community Organisations In ‘Constructing Advantage’, Samuel E. Garrett-Jones, Michael Gross, Gregory Kerr, S. Kotevski, S. Zaeemdar

Faculty of Commerce - Papers (Archive)

Cities and regions around the world are attempting to ‘construct advantage’ by intervening to create knowledge- and innovation-based economic and social development. This paper considers the rationale for such intervention and in particular reviews the concept of ‘community innovation organisations’ by exploring their definition, origins, and purpose. It develops a classification of local innovation actors and their functions. We argue that the contribution of community based organisations to local innovation-based economic and social development has been largely overlooked in Australia by comparison with studies and initiatives in Europe and North America. We propose a programme of empirical research to assess …

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Student-Centred Teaching Of Accounting To Engineering Students: Comparing Blended Learning And Traditional Approaches, A. Abraham Dec 2007

Student-Centred Teaching Of Accounting To Engineering Students: Comparing Blended Learning And Traditional Approaches, A. Abraham

Faculty of Commerce - Papers (Archive)

Blended learning is growing in popularity, but there is conflicting empirical evidence in relation to how it affects students’ exam marks and final grades. This paper compares a blended learning approach to the traditional delivery of an accounting subject to engineering students. Data was collected from two cohorts of students over two semesters and analysed to determine whether the students who were exposed to the blended environment displayed increased participation in a non-compulsory learning task and higher marks in both in-session and final examinations. Results indicated significant improvements in every area, supplying valuable evidence that the adoption of a blended …

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A Multi-Class Image Classification System Using Salient Features And Support Vector Machines, Wenbin Shao, Son Lam Phung, G. Naghdy Dec 2007

A Multi-Class Image Classification System Using Salient Features And Support Vector Machines, Wenbin Shao, Son Lam Phung, G. Naghdy

Faculty of Informatics - Papers (Archive)

This paper addresses the problem of automatic image annotation for semantic retrieval of images. We propose an image classification system that is capable of recognizing several image categories. The system is based on the support vector machine and a set of image features that includes MPEG-7 visual descriptors and a custom feature. The system is evaluated on a large dataset consisting of 14400 images in four categories - landscape, cityscape, vehicle and portrait. We find that the proposed edge direction histogram and the MPEG-7 edge histogram perform better than other features in this application. Experiment results indicate that the pair- …

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Encouraging Role Based Online Learning Environments, Sandra Wills, E. Devonshire, Elyssebeth Leigh, E. Rosser, J. Shepherd, A. Vincent Dec 2007

Encouraging Role Based Online Learning Environments, Sandra Wills, E. Devonshire, Elyssebeth Leigh, E. Rosser, J. Shepherd, A. Vincent

Senior Deputy Vice-Chancellor and Deputy Vice-Chancellor (Education) - Papers

This paper reports on progress in the first year of a two year project called Project EnROLE (Encouraging Role Based Online Learning Environments) which is funded by the Carrick Institute for Learning & Teaching in Higher Education in Australia. The project aims to link a small but growing number of university teachers who are using online role play, building them into a community via three strategies: developing a repository of sharable/reusable role play learning designs with an associated peer review process; facilitating evaluation and publication of papers about their role plays (for example the role play stream at this conference); …

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A Balancing Act: Problematising Prescriptions About Food And Weight In School Health Texts, Jan Wright, R. Dean Dec 2007

A Balancing Act: Problematising Prescriptions About Food And Weight In School Health Texts, Jan Wright, R. Dean

Faculty of Education - Papers (Archive)

School health syllabuses, health and physical education textbooks and most recently website resources targeting young people’s health are one of the main sources of knowledge in schools about how individuals should live their lives and come to know themselves and others, particularly as these relate to their bodies, their relationships and their daily practices of eating, drinking and engaging in physical activity. One of the most powerful and pervasive discourses currently influencing ways of thinking about health and about bodies is that associated with the notion of an ‘obesity epidemic’. In this paper, we use the notion of biopower as …

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Expanding The Pool Of Volunteers: Enticing Ethnic Minorities To Become More Involved, Melanie J. Randle, Sara Dolnicar Dec 2007

Expanding The Pool Of Volunteers: Enticing Ethnic Minorities To Become More Involved, Melanie J. Randle, Sara Dolnicar

Faculty of Commerce - Papers (Archive)

In Australia the value of volunteering runs into the tens of billions of dollars each year. The multicultural nature of Australia has resulted in greater heterogeneity amongst volunteers; however minorities are still under-represented in mainstream volunteering. Using the Theory of Planned Behaviour to structure the study, the volunteering behaviour of ethnic minorities is investigated. All three constructs are found to be relevant for volunteering; however, the role that each construct plays varies between ethnic groups. Findings are significant for managers trying to attract volunteers from different ethnic groups because marketing messages can be targeted to the factors most influential in …

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Role Of Group A Streptococcus Htra In The Maturation Of Speb Protease, J. N. Cole, J. A. Aquilina, P. G. Hains, A. Henningham, K. S. Sriprakash, M. G. Caparon, V. Nizet, M. Kotb, S. J. Cordwell, S. P. Djordjevic, Mark J. Walker Dec 2007

Role Of Group A Streptococcus Htra In The Maturation Of Speb Protease, J. N. Cole, J. A. Aquilina, P. G. Hains, A. Henningham, K. S. Sriprakash, M. G. Caparon, V. Nizet, M. Kotb, S. J. Cordwell, S. P. Djordjevic, Mark J. Walker

Faculty of Science - Papers (Archive)

The serine protease HtrA (DegP) of the human pathogen Streptococcus pyogenes (group A Streptococcus; GAS) is localized to the ExPortal secretory microdomain and is reportedly essential for the maturation of cysteine protease SpeB. Here we utilize HSC5 (M5 serotype) and the in-frame isogenic mutant HSC5ΔhtrA to determine whether HtrA contributes to the maturation of other GAS virulence determinants. Mutanolysin cell wall extracts and secreted proteins were arrayed by 2-DE and identified by MALDI-TOF PMF analysis. HSC5ΔhtrA had elevated levels of cell wall-associated M protein, whilst the supernatant had higher concentrations of M protein fragments and a reduced amount of mature …

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Changing Cultures Of Water In Eastern Australian Backyard Gardens, Lesley M. Head, Pat Muir Dec 2007

Changing Cultures Of Water In Eastern Australian Backyard Gardens, Lesley M. Head, Pat Muir

Faculty of Science - Papers (Archive)

Research into diverse cultural understandings of water provides important contributions to the pressing global issue of sustainable supply, particularly when combined with analysis of relationships between everyday household practice and larger sociotechnical networks of storage and distribution. Here we analyse semi-structured interviews with 298 people about their 241 backyards in the Australian east coast cities of Sydney and Wollongong, undertaken during the 2002-03 drought. Water emerged as an important issue in both consciousness and practice. In contrast to a number of other environmental issues which stimulate more polarised responses, a commitment to reducing water consumption was shared across the study …

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Internet Domains Between China And India: Beyond Anglophone Paradigms, Mark J. Mclelland Dec 2007

Internet Domains Between China And India: Beyond Anglophone Paradigms, Mark J. Mclelland

Faculty of Arts - Papers (Archive)

This paper critiques the current Anglophone bias in much Internet studies research and argues for an internationalization of Internet studies that takes account of the different histories, technologies and trajectories of Internet development in an Asian context.

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Cronotopi Del Paese Natio E Di Quello D’Adozione Nella Poesia E La Narrativa Calabroaustraliana, Gitano Rando Dec 2007

Cronotopi Del Paese Natio E Di Quello D’Adozione Nella Poesia E La Narrativa Calabroaustraliana, Gitano Rando

Faculty of Arts - Papers (Archive)

Il saggio di Gaetano Rando prende lo spunto dal lavoro fondamentale di Pasquino Crupi che maestralmente indica la strada non solo per lo studio della cultura letteraria calabroitaliana ma anche la produzione letteraria e culturale dei Calabresi nel mondo, Australia compresa. In contrapposizione agli studi precedenti sulla letteratura italoaustraliana che hanno trattato il fenomeno nei suoi aspetti globali il saggio di Rando propone un esame capillare dei tratti distintivi e delle esperienze localizzate che segnano la produzione letteraria degli scrittori di origine calabrese. Collegando tale produzione al concetto bakhtiniano del cronotopo che si basa sull’idea che le dimensioni spaziali e …

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Dynamic Recrystallization Of Austenitic Stainless Steel Under Multiple Peak Flow Behaviours, A. Dehghan-Manshadi, P. D. Hodgson Dec 2007

Dynamic Recrystallization Of Austenitic Stainless Steel Under Multiple Peak Flow Behaviours, A. Dehghan-Manshadi, P. D. Hodgson

Faculty of Engineering - Papers (Archive)

The hot working behaviour of a Fe–0.02C–8.2Ni–18.5Cr (mass%) austenitic stainless steel was studied at high temperatures and low strain rates. These conditions led to a multiple peak stress–strain curve, where the second peak had a much larger strain and stress than the first peak. The first peak showed evidence of some grain refinement, indicative of conventional dynamic recrystallization. However, after this there was significant grain coarsening, similar to abnormal grain growth, with the formation of substructure within the grains. The strain to the first peak in the multi peak tests was much lower strain than expected from extrapolation of the …

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Mai Lontan Dal Cuore — Manifestazioni E Trasmutazioni Del Rapporto Con Il Paese Di Origine, Gaetano Rando, Gerry Turcotte Dec 2007

Mai Lontan Dal Cuore — Manifestazioni E Trasmutazioni Del Rapporto Con Il Paese Di Origine, Gaetano Rando, Gerry Turcotte

Faculty of Arts - Papers (Archive)

The field of Italian Australian studies is both diverse and dynamic. It has embraced topics from outside its “traditional” ambit and has identified new areas of concern to scholars in the field. This volume examines from a post-colonial perspective one of the many and varied cultural practices — the creation of literary texts — established by migrants from Sicily and Calabria who constitute the two major Italian regional groups in Australia. In re-creating aspects of their inhabited past in their new frontier thereby lessening the threat of loss and reconciling their past with their present, these migrants have created a …

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On Foxes Becoming Gamekeepers: The Capture Of Professional Regulation By The Australian Accounting Profession, Graham Bowrey, Brian Murphy, Ciorstan J. Smark, T. Watts Dec 2007

On Foxes Becoming Gamekeepers: The Capture Of Professional Regulation By The Australian Accounting Profession, Graham Bowrey, Brian Murphy, Ciorstan J. Smark, T. Watts

Faculty of Commerce - Papers (Archive)

There are such persons as liars, damned liars and experts, and there are accountants, bad accountants, and worse accountants. (Debate on the introduction of the Public Accountants Registration Act, New South Wales Parliament, 1944, p. 856) Both the state and the professions have an important interest in safeguarding the quality of service and the protection of the public with respect to the provision of professional services. In the main, the states focus on professional performance and accountability, and the professions emphasise the maintenance of quality and improvement in the skills of members. With respect to the accounting profession the state …

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Transition Analysis For Moderate Feedback Self-Mixing Interferometry, L. Wei, Jiangtao Xi, Yanguang Yu, Joe F. Chicharo Nov 2007

Transition Analysis For Moderate Feedback Self-Mixing Interferometry, L. Wei, Jiangtao Xi, Yanguang Yu, Joe F. Chicharo

Faculty of Informatics - Papers (Archive)

We present a theoretical analysis on the locations of transition points in moderate feedback self-mixing signal which is a fundamental issue to be addressed in preprocessing experimentally acquired data. Locations for the start and end points for upward and downward switchings are calculated based on the Lang-Kobayashi model and discussions are given, which provides guidance in achieving more accurate signal normalization.

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Framing The Integration Of Computers In Beginning Teacher Professional Development, N. F. Johnson Nov 2007

Framing The Integration Of Computers In Beginning Teacher Professional Development, N. F. Johnson

Faculty of Education - Papers (Archive)

Government education departments mandate that computers should be and must be used in classrooms. Many beginning teachers are unsure of how to implement these expectations. Peter Twining’s (2002) Computer Practice Framework (CPF) provides us not only with how to conceptualise computer use in education, but with the means to practically and progressively integrate computers into classrooms. Explanation is given as to how the CPF can be used as a reference point for beginning teachers to plan and use computers in their primary classroom programmes, through drawing on a personal narrative and linking it to the framework of the CPF. As …

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Understanding Teenager Technological Expertise In Out-Of-School Settings, N. F. Johnson Nov 2007

Understanding Teenager Technological Expertise In Out-Of-School Settings, N. F. Johnson

Faculty of Education - Papers (Archive)

Drawing on Pierre Bourdieu’s theory of practice, this study explored the construction of technological expertise of eight teenagers (five boys and three girls) aged 13 – 17. The qualitative study specifically employed observations and interviews and focused on home computer use, which for many of the participants was their primary site of leisure. All of the participants considered themselves to be technological experts, and their peers and/or their family supported this premise. This paper outlines findings that identify the participants’ multiple (and contradictory) understandings of expertise and the ways the participants perceive they have attained expertise and perform as experts …

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Simulating Shock Loads In Railway Track Environments: Experimental Studies, Alexander Remennikov, Sakdirat Kaewunruen Nov 2007

Simulating Shock Loads In Railway Track Environments: Experimental Studies, Alexander Remennikov, Sakdirat Kaewunruen

Faculty of Engineering - Papers (Archive)

The nature of loading conditions on railway tracks is mostly of regular loading patterns due to passage of wheels of rolling stock. Dynamic forces on a railway track caused by abnormal impacts due to wheel flats, rail dips, etc. are usually highly impulsive with short durations and high frequency contents. There have been a number of investigations on the wheel/rail impacts due to wheel and rail imperfections and track abnormalities. However, the effect of railway track environments including ballast and rail pads has yet been addressed. Intensive studies on the impact resistance of railway concrete sleepers have been conducted at …

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Response And Prediction Of Dymanic Characteristics Of Worn Rail Pads Under Static Preloads, Sakdirat Kaewunruen, Alexander Remennikov Nov 2007

Response And Prediction Of Dymanic Characteristics Of Worn Rail Pads Under Static Preloads, Sakdirat Kaewunruen, Alexander Remennikov

Faculty of Engineering - Papers (Archive)

Rail pads are a major component of ballasted railway tracks. It helps attenuate the excessive dynamic stress from wheel/rail impact forces in order to prevent premature breakdown of other track components. Based on numerous analytical and numerical models, rail pad plays a crucial role on the dynamic behaviours of railway track. Over years, the rail pads have been worn by the services to carry either passenger or freight train operations. The characteristics of worn rail pads become imperative to maintenance unit as to plan the renewal schedule. Using methods of modal analysis, this paper adopts an instrumented hammer to excite …

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Updating And 'Future-Proofing' A Rich Computer Aided Language Learning Resource, Ray Stace Nov 2007

Updating And 'Future-Proofing' A Rich Computer Aided Language Learning Resource, Ray Stace

Senior Deputy Vice-Chancellor and Deputy Vice-Chancellor (Education) - Papers

A collaborative partnership that endured over nine years resulted in the establishment of a rich computer-based resource of language learning materials. While the linguistic content, the design and the activities did not age, the platform and application used to deliver were both reaching the end of their life-time. In the case of the former, Apple Computer was moving to a new operating System in OS X and at the same time, their HyperCard application was not going to be supported through the OS change and would thus fade away. All CALL resources that had been developed were Apple OS and …

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