Digital Commons Network^™

Neural Network Fault Diagnosis Of A Trolling Motor Based On Feature Reduction Techniques For An Unmanned Surface Vehicle, Wathiq Abed, Sanjay Sharma, Robert Sutton

School of Engineering, Computing and Mathematics

This article presents a novel approach to the diagnosis of unbalanced faults in a trolling motor under stationary operating conditions. The trolling motor being typically of that used as the propulsion system for an unmanned surface vehicle, the diagnosis approach is based on the use of discrete wavelet transforms as a feature extraction tool and a time-delayed neural network for fault classification. The time-delayed neural network classifies between healthy and faulty conditions of the trolling motor by analysing the stator current and vibration. To overcome feature redundancy, which affects diagnosis accuracy, several feature reduction methods have been tested, and the …

A Robust Bearing Fault Detection And Diagnosis Technique For Brushless Dc Motors Under Non-Stationary Operating Conditions, Wathiq Abed, Sanjay Sharma, Robert Sutton, Amit Motwani

School of Engineering, Computing and Mathematics

No abstract provided.

Discussion Of “Investigation Of Soil Arching With Centrifuge Tests” By Geraldo R. Iglesia, Herbert H. Einstein, And Robert V. Whitman, E Ellis, Y Zhuang

School of Engineering, Computing and Mathematics

No abstract provided.

Creating The Cognitive Form Of Phonological Units: The Speech Sound Correspondence Problem In Infancy Could Be Solved By Mirrored Vocal Interactions Rather Than By Imitation, Piers Messum, Ian S. Howard

School of Engineering, Computing and Mathematics

No abstract provided.

Hcv Treatment Rates And Sustained Viral Response Among People Who Inject Drugs In Seven Uk Sites: Real World Results And Modelling Of Treatment Impact, Natasha K. Martin, G. R. Foster, J. Vilar, S. Ryder, M. E. Cramp, F. Gordon, J. F. Dillon, N. Craine, H. Busse, A. Clements, S. J. Hutchinson, A. Ustianowski, M. Ramsay, D. J. Goldberg, W. Irving, V. Hope, Angelis D De, M. Lyons, P. Vickerman, M. Hickman

Peninsula Medical School

No abstract provided.

Interventions To Improve Antimicrobial Prescribing Of Doctors In Training: The Impact (Improving Antimicrobial Prescribing Of Doctors In Training) Realist Review, Geoff Wong, Nicola Brennan, Karen Mattick, Mark Pearson, Simon Briscoe, Chrysanthi Papoutsi

Peninsula Medical School

No abstract provided.

Effectiveness And Micro-Costing Of The Kiva School-Based Bullying Prevention Programme In Wales: Study Protocol For A Pragmatic Definitive Parallel Group Cluster Randomised Controlled Trial, Suzy Clarkson, Nick Axford, Vashti Berry, Rhiannon Tudor Edwards, Gretchen Bjornstad, Zoe Wrigley, Joanna Charles, Zoe Hoare, Obioha C. Ukoumunne, Justin Matthews, Judy Hutchings

Peninsula Medical School

No abstract provided.

3d Fea Modelling Of Laminated Composites In Bending And Their Failure Mechanisms, M. Meng, H. R. Le, M. J. Rizvi, S. M. Grove

School of Engineering, Computing and Mathematics

Abstract This paper developed three-dimensional (3D) Finite Element Analysis (FEA) to investigate the effect of fibre lay-up on the initiation of failure of laminated composites in bending. Tsai-Hill failure criterion was applied to identify the critical areas of failure in composite laminates. In accordance with the 3D FEA, unidirectional ([0]16), cross-ply ([0/90]4s) and angle-ply ([±45]4s) laminates made up of pre-preg Carbon Fibre Reinforced Plastics (CFRP) composites were manufactured and tested under three-point bending. The basic principles of Classical Laminate Theory (CLT) were extended to three-dimension, and the analytical solution was critically compared with the FEA results. The 3D FEA results …

Multi-User Indoor Ultra-Wideband Wireless Communication Using Polyphase Spreading Sequences, Ma Ambroze, Pa Martin, M Tomlinson, Dp Taylor

School of Engineering, Computing and Mathematics

No abstract provided.

The Effects Of Unequal Compressive/Tensile Moduli Of Composites, M. Meng, H. R. Le, M. J. Rizvi, S. M. Grove

School of Engineering, Computing and Mathematics

Abstract This paper investigates the effects of unequal compressive and tensile moduli of carbon fibre reinforced plastic (CFRP) composites. The basic assumption is based on the statistics that the compressive modulus is a fraction lower than the tensile modulus. Data evaluated by Finite Element Analysis (FEA) model, Classical Laminate Theory (CLT) model, and experiment are used to investigate these effects. The terms of compressive modulus are successfully introduced into the Tsai–Wu failure criterion for the production of failure envelops, into the Classical Beam Theory (CBT) and CLT for the investigation of flexural behaviour as well as the fibre microbuckling model …

Multi-Criterion Water Quality Analysis Of The Danube River In Serbia: A Visualisation Approach, David Walker, Dejana Jakovljević, Dragan Savić, Milan Radovanović

School of Engineering, Computing and Mathematics

No abstract provided.

New Insights Into Landslide Processes Around Volcanic Islands From Remotely Operated Vehicle (Rov) Observations Offshore Montserrat, S. F.L. Watt, M. Jutzeler, P. J. Talling, S. N. Carey, R. S.J. Sparks, M. Tucker, A. J. Stinton, J. K. Fisher, D Wall‐Palmer, V. Hühnerbach, S. G. Moreton

School of Geography, Earth and Environmental Sciences

AbstractSubmarine landslide deposits have been mapped around many volcanic islands, but interpretations of their structure, composition, and emplacement are hindered by the challenges of investigating deposits directly. Here we report on detailed observations of four landslide deposits around Montserrat collected by Remotely Operated Vehicles, integrating direct imagery and sampling with sediment core and geophysical data. These complementary approaches enable a more comprehensive view of large‐scale mass‐wasting processes around island‐arc volcanoes than has been achievable previously. The most recent landslide occurred at 11.5–14 ka (Deposit 1; 1.7 km3) and formed a radially spreading hummocky deposit that is morphologically similar to many …

Snatch Loading Of A Single Taut Moored Floating Wave Energy Converter Due To Focussed Wave Groups, Martyn Hann, Deborah Greaves, Alison Raby

School of Engineering, Computing and Mathematics

No abstract provided.

Metals In Boat Paint Fragments From Slipways, Repair Facilities And Abandoned Vessels: An Evaluation Using Field Portable Xrf., Andrew Turner, Sean Comber, Aldous B. Rees, Dimitrios Gkiokas, Kevin Solman

School of Geography, Earth and Environmental Sciences

Paint flaking off abandoned vessels or generated during boat repair is hazardous to human health and wildlife. In this study, a means of screening paint fragments using a field portable-X-ray fluorescence (FP-XRF) spectrometer is described. The technique is capable of delivering rapid, surficial measurements of Ba, Cu, Pb and Zn down to concentrations less than 150 μg g(-1), and Sn and Cr to concentrations of a few hundred μg g(-1). Application of the technique to fragments collected from slipways, yards, hardstandings, abandoned boats and ships undergoing maintenance throughout the EU reveal highly variable concentrations of metals among samples from the …

Uncoupling Protein-2 Attenuates Palmitoleate Protection Against The Cytotoxic Production Of Mitochondrial Reactive Oxygen Species In Ins-1e Insulinoma Cells., Jonathan Barlow, Jensen V Hirschberg, Charles Affourtit

School of Biomedical Sciences

High glucose and fatty acid levels impair pancreatic beta cell function. We have recently shown that palmitate-induced loss of INS-1E insulinoma cells is related to increased reactive oxygen species (ROS) production as both toxic effects are prevented by palmitoleate. Here we show that palmitate-induced ROS are mostly mitochondrial: oxidation of MitoSOX, a mitochondria-targeted superoxide probe, is increased by palmitate, whilst oxidation of the equivalent non-targeted probe is unaffected. Moreover, mitochondrial respiratory inhibition with antimycin A stimulates palmitate-induced MitoSOX oxidation. We also show that palmitate does not change the level of mitochondrial uncoupling protein-2 (UCP2) and that UCP2 knockdown does not …

The Expression Of Toll-Like Receptor 4, 7 And Co-Receptors In Neurochemical Sub-Populations Of Rat Trigeminal Ganglion Sensory Neurons, M. P. Helley, W. Abate, S. K. Jackson, J. H. Bennett, S. W.N. Thompson

School of Biomedical Sciences

No abstract provided.

Third-Generation Cephalosporin Resistance Conferred By A Chromosomally Encoded Blacmy-23 Gene In The Escherichia Coli St131 Reference Strain Ec958., Minh Duy Phan, Kate M. Peters, Sohinee Sarkar, Brian M. Forde, Alvin W. Lo, Mitchell Stanton-Cook, Leah W. Roberts, Mathew Upton, Scott A. Beatson, Mark A. Schembri

School of Biomedical Sciences

OBJECTIVES: Escherichia coli ST131 is a globally disseminated MDR clone originally identified due to its association with the blaCTX-M-15 gene encoding an ESBL. It is thus assumed that blaCTX-M-15 is the major determinant for resistance to β-lactam antibiotics in this clone. The complete sequence of EC958, a reference strain for E. coli ST131, revealed that it contains a chromosomally located blaCMY-23 gene with an upstream ISEcp1 element as well as several additional plasmid-encoded β-lactamase genes. Here, we examined the genetic context of the blaCMY-23 element in EC958 and other E. coli ST131 strains and investigated the contribution of blaCMY-23 to …

Antibiotic-Resistant St38, St131 And St405 Strains Are The Leading Uropathogenic Escherichia Coli Clones In Riyadh, Saudi Arabia., Majed F. Alghoribi, Tarek M. Gibreel, Garry Farnham, Johani Sm Al, Hanan H. Balkhy, Mathew Upton

School of Biomedical Sciences

OBJECTIVES: We investigated the molecular epidemiology of uropathogenic Escherichia coli (UPEC) from a tertiary care hospital in Riyadh, Saudi Arabia, revealing, for the first time, the population structure of UPEC in the region. METHODS: A total of 202 UPEC isolates were recovered from hospital and community patients with urinary tract infection in December 2012 and January 2013. Strains were characterized by MLST, antibiotic susceptibility determination and virulence gene detection. RESULTS: The most common lineages were ST131 (17.3%), ST73 (11.4%), ST38 (7.4%), ST69 (7.4%), ST10 (6.4%), ST127 (5.9%), ST95 (5.4%), ST12 (3.5%), ST998 (3.5%) and ST405 (3%). ST131 and ST405 isolates …

Molecular Characterization Of A Multidrug Resistance Incf Plasmid From The Globally Disseminated Escherichia Coli St131 Clone., Minh Duy Phan, Brian M. Forde, Kate M. Peters, Sohinee Sarkar, Steven Hancock, Mitchell Stanton-Cook, Zakour Nl Ben, Mathew Upton, Scott A. Beatson, Mark A. Schembri

School of Biomedical Sciences

Escherichia coli sequence type 131 (E. coli ST131) is a recently emerged and globally disseminated multidrug resistant clone associated with urinary tract and bloodstream infections. Plasmids represent a major vehicle for the carriage of antibiotic resistance genes in E. coli ST131. In this study, we determined the complete sequence and performed a comprehensive annotation of pEC958, an IncF plasmid from the E. coli ST131 reference strain EC958. Plasmid pEC958 is 135.6 kb in size, harbours two replicons (RepFIA and RepFII) and contains 12 antibiotic resistance genes (including the blaCTX-M-15 gene). We also carried out hyper-saturated transposon mutagenesis and multiplexed transposon …

Aspergillus Nidulans Protein Kinase A Plays An Important Role In Cellulase Production, Assis Lj De, Laure Nicolas Annick Ries, Marcela Savoldi, Reis Tf Dos, Neil Andrew Brown, Gustavo Henrique Goldman

School of Biomedical Sciences

No abstract provided.

Traffic Lights Control Using Wireless Ad-Hoc Sensor Networks, Abdulmomen Kadhim, Muayad Sadik Croock Ph.D., Shaimaa Hameed Shaker

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Wireless sensor networks undergo tremendous applications to be utilized for. In this paper, we propose a wireless ad hoc sensor network architecture that does not depend on a centralized unit to urban city’s vehicular control, by applying different sensors distribution for main and side streets. On this architecture, we define and evaluate through simulation the effectiveness of our work against the traditional fixed-time traffic light model. Traffic lights coordination is addressed in master and local controllers by executing green-wave algorithm at our architecture. Simulation results show that this architecture achieves great reduction in total waiting time on the city been …

Limited Attention, Marital Events, And Hedge Funds, Yan Lu, Sugata Ray, Melvyn Teo

Research Collection Lee Kong Chian School Of Business

We explore the impact of limited attention on investment performance by analyzing the returns of hedge fund managers who are distracted by personal events such as marriage and divorce. We find that marriages and divorces are associated with significantly lower fund alpha, during the six-month period surrounding the event and for up to two years after the event. Relative to the pre-event window, fund alpha falls by an annualized 8.50 percent during a marriage and 7.39 percent during a divorce. Busy fund managers who manage larger funds and engage in high tempo investment strategies are more affected by marriage. Fund …

Hazards To Effective Due Diligence, Michael Benoliel

Research Collection Lee Kong Chian School Of Business

It is not surprising that many business deals fail to realize their expected future value because some deal makers fail to perform effective due diligence. Successful deal makers, however, know that due diligence is one of the most important tasks in successful deal making. Thus, they avoid the psychological and contextual traps that cause poor due diligence. In this article, I describe the hazards – the psychological biases and contextual factors – that might affect the due diligence task. These hazards include information availability bias; confirmation bias; overconfidence bias; time pressure; self-interested agents; deal fever; narrow focus; and complexity. Following …

Corporate Social Performance, Analyst Stock Recommendations, And Firm Future Returns, Xueming Luo, Heli Wang, Sascha Raithel, Qinqin Zheng

Research Collection Lee Kong Chian School Of Business

This study posits that security analysts heed corporate social performance information and factor it into their recommendations to general investors. In particular, as corporate social performance is often uncertain and ambiguous to general investors, analysts may serve as the informational pathway connecting corporate social performance to firm stock returns. Thus, we argue that analyst recommendations mediate the relationship between corporate social performance and firm stock returns. On the basis of not only a qualitative study with literature searches and interviews of stock analysts but also a quantitative study with two longitudinal samples of large firms, we find support for these …

The Expression Pattern Of Death Associated Protein Kinase1 In Normal Dorsal Root Ganglion Neurons And Following Peripheral Nerve Injury, Maryam Sulaiman Mohammed Al Saadi

Dissertations

Death-associated protein kinase1 (DAPK1) is a calcium/calmodulin (Ca2+/CaM) regulated serine/threonine kinase. An increasing body of evidence supports the significance of DAPK1 protein in cancer and CNS diseases. The role of DAPK in peripheral nerve regeneration and neuropathic pain remains completely unexplored. The aim of this study is to investigate the expression pattern of DAPK1 along with key proand anti-apoptotic cell signaling molecules (p53, Bax, Akt, ERK5, p38) and to verify the possibilities of DAPK1-NMDA NR2B relationship in dorsal root ganglion neurons (DRG) after 2 hours, 7 days and 14 days following a sciatic nerve injury. Gene expression analysis and immunohistochemistry …

Prophecy, Propaganda Or Both? A Rereading Of Hosea 1-3, Lawrence Pang

Theses

Scholars agree that the prophetic books in the Hebrew Bible contain writings associated with Israel’s prophets. They concur that the growth of the books involves preservation and collection of materials relating to prophetic speeches and activities, reflecting as well as commenting on these materials, and updating them through a process of redaction as events unfold. The purpose of each stage of growth was to make the prophetic speeches and activities applicable to a new situation. This manner of growth, however, presents an interpretive issue. The redaction of prophecies within the context of a book bearing the name of a prophet …

Optimising Motor Learning Of Infants At High Risk Of Cerebral Palsy Using Goal-Oriented And Environmental Interventions, Catherine Morgan

Theses

Background and aims: Cerebral palsy (CP) is the most common physical disability of childhood occurring in 1 in 500 live births in developed countries. Although CP starts in infancy because of a lesion in the developing brain, it is usually not diagnosed until about 19 months. The problem with late detection has meant that early neurorehabilitation is not accessed until motor impairment is evident. Consequently the dose of active intervention during the critical period for brain plasticity is often inadequate. Little evidence exists for the effectiveness of early intervention (EI) protocols for infants with CP. In particular, interventions that take …

Courage To Move Beyond The Past: Common Law And Canonical Structures For The Governance Of Australian Congregational Schools In The 21st Century, Jane Power

Theses

The future governance and ownership of congregational schools has become a compelling question for many congregations still seeking to determine the future of their schools and education ministry. Some congregations have already made the transition to new legal structures, some are in a transitional phase, and still others are yet to make decisions.

The purpose of this thesis is to determine suitable common law and canon law structures for the future governance and ownership of congregational schools when the congregations are no longer willing or able to continue in their current roles. The following aspects determine the focus of the …

A Critique Of The English Translations Of The Roman Canon With A Comparative Study Of Their Implications, Giorgio Nulley

Theses

The thesis examines the English translation of the Roman Canon from the relevant Latin Typical Edition texts initially revised by decree of the Second Vatican Council and published by authority of Pope Paul VI and subsequently revised at the direction of Pope John Paul II as the Third Typical Edition. This examination will critique language, grammar, punctuation and syntax of the two translations to the Latin text of the Roman Canon. Included in the examination will be a discussion and analysis of the role of punctuation in the theological understanding of the content of the prayers of the Roman Canon. …

One-To-One Laptop Program: Effect On Boys' Education, Steven Males

Theses

Since the beginning of 1:1 laptop programs in schools there has been extensive research undertaken about the effectiveness of how laptops are used for teaching and learning. With an educational environment in Australia where the use of Information Communications Technology (ICT) is one of the five general capabilities of the Australian Curriculum, an expectation to use ICT effectively for teaching and learning is explicit. However, the use of laptops for teaching and learning is complex for teachers and students. Furthermore, parents are expected to support their child’s learning in a digital age where mobile devices for learning are common. Therefore, …