Digital Commons Network^™

Passive And Active Optical Bit-Pattern Recognition Structures For Multiwavelength Optical Packet Switching Networks, Muhsen Aljada, Kamal Alameh

Research outputs pre 2011

Next generation High-Speed optical packet switching networks require components capable of recognising the optical header to enable on-the-fly accurate switching of incoming data packets to their destinations. This paper experimentally demonstrates a comparison between two different optical header recognition structures; A passive structure based on the use of Fiber Bragg Gratings (FBGs), whereas the active structure employs Opto-VLSI processors that synthesise dynamic wavelength profile through digital phase holograms. The structures are experimentally demonstrated at 10Gbps. Performance comparison between the two structures is also discussed. These optical header recognition structures are attractive for multiwavelength optical network and applications.

Explaining The Lack Of Strategic Planning In Smes: The Importance Of Owner Motivation, Calvin Wang, Elizabeth Walker, Janice Redmond

Research outputs pre 2011

Considerable evidence shows that strategic planning leads to increased firm performance. Yet, the majority of SMEs do not plan and the reasons why are not well understood. This article questions the common approach to understanding this problem based on identifying business barriers to planning. For the majority of SME owner operators, business performance often ranks far behind intangible goals such as autonomy, personal satisfaction and lifestyle. Strategic planning may therefore have little value to owner-operators driven by such motivators. This article presents an alternative perspective to the issue by arguing that owner aspirations are integral to whether or not SMEs …

Effect Of Leaf Movement On Epiphytic Algal Biomass Of Seagrass Leaves, Paul Lavery, Tara Reid, Glenn Hyndes, Beverley Van Elven

Research outputs pre 2011

We tested the hypothesis that the movement of seagrass leaves affects the accumulation and composition of algal epiphytes by comparing the standing crop and composition on tethered (T) and untethered (UT) artificial seagrass units (ASUs) over 4 and 8 wk. We also tested whether any effect of leaf movement on standing crop was dependent on the degree of water movement by repeating the experiment over 8 wk at sheltered and exposed sites. To eliminate the possibility of inter-regional differences between exposed and sheltered sites and to test for interactive effects of light availability and leaf movement on epiphyte biomass, we …

Proceedings Of The Sixth International Workshop For Applied Pkc (Iwap2007), Dongguang Li

Research outputs pre 2011

IWAP2007 will be the sixth of a series of successful international workshops with focus on research and engineering issues of the applied aspects of public key cryptosystems. The inaugural IWAP event was held in Korea in 2001, and was subsequently held in 2002, 2004, 2005 and 2006 respectively in Taipei, Japan, Singapore and China. The IWAP2003 was cancelled due to the SARS breakout. Theoreticians and practitioners interested in the applied issues of PKC were encouraged to participate and contribute to the continuous success of the IWAP workshop series. The host of the IWAP2007 is Edith Cowan University. It is my …

Analysis Of Supercritical Stratified Tidal Flow In A Scottish Fjord, Nataliya Stashchuk, Mark Inali, Vasiliy Vlasenko

School of Biological and Marine Sciences

The baroclinic tidal regime of the fjord Loch Etive (Scotland) is studied. Analysis is performed on the basis of both in situ data and numerical simulations, with the use of a fully nonlinear nonhydrostatic fine-resolution model. It was found that the crest of the sill that separates Loch Etive into inner and outer parts is subjected to a supercritical flow regime with maximum Froude numbers in excess of 5. Strong supercritical conditions lead to the formation of flow separation just above the sill's crest. As is inherent to jet-type fjordic systems, this, in turn, leads to a weak nonlinear baroclinic …

The Internationalization Of Singapore’S State-Enterprise Networks In The Context Of Asia’S Transborder Industrialization: Further Evidence From Indonesia, Vietnam And China, Wilfred Pow Ngee How, Caroline Yeoh

Research Collection Lee Kong Chian School Of Business

No abstract provided.

Managing Change In Asian Business: A Comparison Between Chinese Educated And English Educated Chinese Entrepreneurs In Singapore, Thomas Menkhoff, Ulrike Badibanga, Yue Wah Chay

Research Collection Lee Kong Chian School Of Business

Against the background of the current rapidly changing business environment, the article examines the organizational change management behaviour of the owner-managers of small and medium sized enterprises (SMEs) in Singapore. The analysis of survey data is aimed at ascertaining whether there are any differences between Chinese and English educated small (ethnic Chinese) businessmen in terms of Change Management (CM), a dichotomy that is of great historical and politico-cultural significance in Singapore. The survey data show that there are indeed differences between the subgroups (eg with regard to the initiation of a more participatory people management style) but these variations turned …

On The Integration Of Production And Financial Hedging Decisions In Global Markets, Qing Ding, Lingxiu Dong, Panos Kouvelis

Research Collection Lee Kong Chian School Of Business

We study the integrated operational and financial hedging decisions faced by a global firm who sells to both home and foreign markets. Production occurs either at a single facility located in one of the markets or at two facilities, one in each market. The company has to invest in capacity before the selling season starts when the demand in both markets and the currency exchange rate are uncertain. The currency exchange rate risk can be hedged by delaying allocation of the capacity to specific markets until both the currency and demand uncertainties are resolved and/or by buying financial option contracts …

Use Of Self Home-Made Diaphragm For Protection Against Pregnancy And Sexually-Transmitted Infections: Case Report., Andrew W. Schroth, Stanley Luchters, M F. Luchters, Marleen Temmerman

Obstetrics and Gynaecology, East Africa

No abstract provided.

A New Variance Ratio Test Of Random Walk In Emerging Markets: A Revisit, O. Al-Khazali, David K. Ding, C.S. Pyun

Research Collection Lee Kong Chian School Of Business

Using a nonparametric variance ratio (VR) test, we revisit the empirical validity of the random walk hypothesis in eight emerging markets in the Middle East and North Africa (MENA). After correcting for measurement biases caused by thin and infrequent trading prevalent in nascent and small stock markets, we cannot reject the random walk hypothesis for the MENA markets. We conclude that a nonparametric VR test is appropriate for emerging stock markets, and argue that our findings can reconcile previously contradictory results regarding the efficiency of MENA markets. [ABSTRACT FROM AUTHOR]

Reducing The Effects Of Bullying Among Aboriginal Children Living In Rural Western Australia: Annual Report, Child Health Promotion Research Unit, Edith Cowan University

Research outputs pre 2011

It is unknown how Aboriginal children and adults conceptualize childhood bullying and what school/community intervention programs are appropriate. The Solid Kids, Solid Schools project will use a combination of qualitative and quantitative research methods to develop culturally informed and determined understandings of bullying among Aboriginal children. These understandings can then be used to formatively develop a sustainable school and community-based bullying prevention and reduction program with strategies identified by Aboriginal people for use in schools in the Yamaji region or Midwest, Murchison Education District of Western Australia.

According to the funding proposal a Steering Committee was established to provide project …

Maximising Parent Involvement In The Pedestrian Safety Of 4 To 6 Year Old Children: Final Report, Child Health Promotion Research Centre

Research outputs pre 2011

In Australia pedestrian injury is the leading specific cause of death among 5-9 year old children, and pedestrian injuries among 0-14 year old children in 1999-20000 were the second highest cause of hospitalisation. This mortality and morbidity can be attributed largely to unsafe road environments and under 10 year old children's significant deficits in cognitive and perceptual abilities when crossing roads. For all children under 10 years learning to cross the road needs to be taught by parents in the same way that children learn to swim i.e. under close adult supervision and in the 'real' environment where the skills …

The Performance Of Seasoned Equity Issues In A Risk-Adjusted Environment, David E. Allen, V Soucik

Research outputs pre 2011

We show that firms issuing seasoned equity possess unique risk characteristics as captured by beta. We use a benchmark to control for this risk and then measure the extent of risk-adjusted underperformance using a longer time-frame than the five-year period used in most studies. We examine the impact of various factors on post-issue performance as well as initial issue underpricing. Why do companies making seasoned equity offerings (SEOs) significantly under perform in the post-issue period? Loughran and Ritter (1997) suggested transitory over-pricing prior to issue, or agency and information costs, Healy and Palepu (1990) and Masulis and Korwar (1986). Rangan …

Changes In Power Assessed By The Wingate Anaerobic Test Following Downhill Running, Carmel Nottle, Kazunori Nosaka

Research outputs pre 2011

No abstract provided.

Experimental Demonstration Of A Dynamic 10gbit/S Wdm Header/Label Recognition Structure, Muhsen Aljada, Kamal Alameh, Byeong Ha Lee, Yong Tak Lee, Kiegon Im, Se-Jong Baik

Research outputs pre 2011

In this paper, we experimentally demonstrate a dynamic wavelength-division-multiplexing (WDM) header/label recognition structure that processes on-the-fly WDM patterns. An opto-VLSI processor is used to dynamically generate digital phase holograms that control the wavelength components of the label/header to create digital wavelength profiles. An autocorrelation function of a high-peak is generated when a label bit pattern matches a digital wavelength profile. The main attractive feature of using an opto-VLSI processor is that the lookup table of matching digital wavelength profiles does not need modification when the data bit-rate is upgraded. The dynamic pattern recognition structure is experimentally demonstrated at 10 Gbit/s …

Morphological, Growth And Meadow Characteristics Of The Seagrass Posidonia Sinuosa Along A Depth-Related Gradient Of Light Availability, Cj Collier, Paul Lavery, Rj Masini, Pj Ralph

Research outputs pre 2011

Morphological and growth characteristics of the meadow-forming seagrass Posidonia sinuosa (Cambridge et Kuo), were measured along a depth-related gradient of light to infer its response to long-term differences in light availability. Morphometric measurements were carried out at 6 depths between 1.6 and 9.0 m in summer and winter at Cockburn Sound and summer only at Warnbro Sound in south-western Australia. The minimum light requirement for P. sinuosa of 8.5% sub-surface light was among the lower range reported for seagrasses. Its slow growth rate (0.5–1.5 mgdry shoot–1 d–1), relative to similarly sized species, may contribute to the low light requirements of …

Reliability Of Kinematics And Kinetics Associated With Horizontal Single Leg Drop Jump Assessment: A Brief Report, M. Stalbom, D.J. Holm, John Cronin, J.W.L. Keogh

Research outputs pre 2011

Determining the reliability of a unilateral horizontal drop jump for displacement provided the focus for this research. Eighteen male subjects were required to step off a 20cm box and land on a force plate with one leg and thereafter jump for maximal horizontal displacement on two different days. Dependent variables from the jump assessment included mean and peak vertical (V) and horizontal (H) ground reaction forces (GRF) and impulses, horizontal displacement and contact time. The between-trial variability of all kinematic and kinetic measures was less than 7%. The most consistent measure over both trials was the horizontal displacement jumped (1.2 …

Factors Influencing Speed Of Cancer Diagnosis In Rural Wa, Moyez Jiwa, Georgia Halkett, Samar Aoun, Hayley Arnet, Marthe Smith, Megan Pilkington, Cheryl Mcmullen

Research outputs pre 2011

Introduction: The speed of diagnosis impacts on prognosis and survival in all types of cancer. In most cases survival and prognosis are significantly worse in rural and remote Australian populations who have less access to diagnostic and therapeutic services than metropolitan communities in this country. Research suggests that in general delays in diagnosis were a factor of misdiagnosis, the confounding effect of existing conditions and delayed or misleading investigation of symptoms. The aim of this study is to further explore the factors that impact on the speed of diagnosis in rural Western Australia with direct reference to General Practitioners (GPs) …

The Use Of Context-Free Grammars In Isolated Word Recognition, Chaiyaporn Chirathamjaree

Research outputs pre 2011

A method using nonrecursive context-free grammars is presented for the recognition of isolated words. Some form of 'training' is required to combat problems of variations in speech. In the training mode, one grammar for each word in the vocabulary is constructed directly from a set of sample strings of 'features' represented by symbols. In the recognition mode, an incoming string is analyzed to determine which grammar, if any, could have generated it. The word corresponding to such grammar is then said to have been recognized.

Firearm Identification With Hierarchical Neural Networks By Analyzing The Firing Pin Images Retrieved From Cartridge Cases, Dongguang Li

Research outputs pre 2011

When a gun is fired, characteristic markings on the cartridge and projectile of a bullet are produced. Over thirty different features can be distinguished from observing these marks, which in combination produce a "fingerprint" for identification of a firearm. ln this paper, through the use of hierarchial neural networks a firearm identification system based on cartridge case images is proposed. We focus on the cartridge case identification of rim-fire mechanism. Experiments show that the model proposed has high performance and robustness by integrating two levels Self- Organizing Feature Map (SOFM) neural networks and the decision-making strategy. This model will also …

The Learning Community Development Model: A Lens For Exploring Community Development In Online Learning, Christopher Brook, Ron Oliver

Research outputs pre 2011

This paper presents an exploration of the community experience in online settings where the development of a learning community was a key instructional aim. The inquiry used the Learning Community Development Model (Brook & Oliver, 2003) to guide the exploration of the community experience in online settings The paper reports the findings of a multi-case study that sought to investigate instructor actions that support community development in online settings.

Critiquing The School Community: A Qualitative Study Of Children's Conceptualization Of Their School, Julie Ann Pooley, Lauren Breen, Lisbeth T. Pike, Lynne Cohen, Neil M. Drew

Research outputs pre 2011

Schools are traditionally seen as responsible for the educational outcomes of our children. However, schools also play an important role in the development of aspects such as selfefficacy, participation, competence and self-determination. As schools are often run as societies rather than communities, they offer little opportunity for these attributes (selfefficacy, participation, competence and self-determination) to develop. Forty-six children aged from nine to 12 years were interviewed to ascertain their conceptualizations of the school community. The children define their school in terms of people, places for activities and interaction, a place for safety, cooperation, influence and functionality. The responses closely align …

Reusing And Sharing Learning Designs In Higher Education, Ron Oliver

Research outputs pre 2011

This paper discusses the emerging need and opportunities for the development of representations and forms for learning designs, the activities a teacher plans to engage learners in learning settings. The paper argues that effective teaching practice, especially that involving ICT, should be able to be described and represented in ways that facilitate sharing and reuse. The paper discusses the ways in which descriptions of learning activities and practices can be described and stored so that they might be accessed and used by others. It describes a Carrick Institute project which seeks to develop strategies and resources that will provide answers …

Network Engineering For C-Commerce Innovation: The Role Of Trust, Mark Brogan, Leisa Armstrong

Research outputs pre 2011

The idea that social networks play an important role in knowledge diffusion of innovation has a long pedigree in innovation theory. In his Diffusion of Innovation (DOI) theory, Rogers (1995) argued that in the information network of the organization, managerial champions and opinion leaders could affect both organizational acceptance and also the velocity of adoption of innovation. In Small to Medium Enterprise (SME) C-commerce innovation, the role of such social factors has been understood in terms of ‘embedded network structure’ (Braun, 2003) that impacts on clustering behavior. This article explores the use of quantitative Social Network Analysis (SNA) to model …

Explorations In Metacognition: The Design, Development, And Implementation Of An Online Teamwork Tracking Environment, Mark Mcmahon, Joseph Luca

Research outputs pre 2011

Research shows that both metacognitive and cognitive strategies are needed for successful learning. In this study, an online tool was developed with a view to help students working in teams reflect on their learning strategies through a process of planning, monitoring and evaluation. An evaluation of the tool was administered at the end of the semester that showed the students valued the tool for tracking their teamwork, but weren’t so convinced it help them plan, monitor and evaluate their learning. These results are discussed, and recommendations are made for improvement using a design-based research approach.

Information Governance: A Model For Security In Medical Practice, Patricia Williams

Research outputs pre 2011

Information governance is becoming an important aspect of organisational accountability. In consideration that information is an integral asset of most organisations, the protection of this asset will increasingly rely on organisational capabilities in security. In the medical arena this information is primarily sensitive patient-based information'. Previous research has shown that application of security measures is a low priority for primary care medical practice and that awareness of the risks are seriously underestimated. Consequently, information security governance will be a key issue for medical practice in the future. Information security governance is a relatively new term ,and there is little existing …

Do Current Erasure Programs Remove Evidence Of Bittorrent Activity?, Andrew Woodward, Craig Valli

Research outputs pre 2011

This research in progress aims to evaluate the effectiveness of commercial programs to erase traces of the use of BitTorrent software. The erasure programs MaxErase, P2PDoctor, Privacy Suite, Window Washer and R-Clean and Wipe were used on a machine that had used the BitTorrent client Azureus to download two torrent files. The drive was imaged and then searched for torrent files. The registry was also examined on the source machine. The program R-Clean and Wipe left evidence in both the registry and the image of the name and type of files that had been downloaded with this software. Of greater …

It Sharps: Issues Relating To Securely Disposing Of Hard Disks From Medical Information Systems, Craig Valli

Research outputs pre 2011

Organisations worldwide are failing to adequately erase data from hard disks before disposing of them. Recent studies have uncovered significant and highly confidential data from computer hard disks for sale in the second hand market using minimal foresic recovery techniques. Increasingly medical businesses are being required to use IT based systems to deliver or receive services. Also medical records are becoming electronic in nature and have significant secondary storage requirements. Given the increased use of IT in medical practice this paper examines the issues uncovered in the studies into recovery of remnant data from hard disks. The paper also explores …

Contingency Theory: Strategic Management Of Conflict In Public Relations, Cameron, A. Pang, Yan Jin

Research Collection Lee Kong Chian School Of Business

No abstract provided.

Dietary Isothiocyanate (Itc), Glutathione S-Transferases (Gst) Polymorphisms And Risk Of Oral Squamous Cell Carcinoma (Oscc) / Karen Ng Lee Peng, Karen Lee Peng Ng

Student Works (2000-2009)

No abstract provided.