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Full-Text Articles in Social and Behavioral Sciences
An Approach For Online Assessment Of Rooftop Solar Pv Impacts On Low-Voltage Distribution Networks, Md Jan-E- Alam, Kashem Muttaqi, Darmawan Sutanto
An Approach For Online Assessment Of Rooftop Solar Pv Impacts On Low-Voltage Distribution Networks, Md Jan-E- Alam, Kashem Muttaqi, Darmawan Sutanto
Faculty of Engineering and Information Sciences - Papers: Part A
Assumption-based offline analysis tools may not be able to provide sufficient and accurate information for the corrective decision making to mitigate solar photovoltaic (PV) impacts in the future distribution grids. This is mainly due to the increasing penetration level of intermittent power generation resources and also the fluctuating behavior of consumer demand. Online assessment tools can assist to manage PV impacts and aid to mitigate those on a real-time basis. This paper proposes an approach for online assessment of rooftop PV impacts on low-voltage (LV) networks using real-time network data. A variable-width sliding window will be used to provide the …
A Review Of Data Quality Assessment Methods For Public Health Information Systems, Hong Chen, David Hailey, Ning Wang, Ping Yu
A Review Of Data Quality Assessment Methods For Public Health Information Systems, Hong Chen, David Hailey, Ning Wang, Ping Yu
Faculty of Engineering and Information Sciences - Papers: Part A
High quality data and effective data quality assessment are required for accurately evaluating the impact of public health interventions and measuring public health outcomes. Data, data use, and data collection process, as the three dimensions of data quality, all need to be assessed for overall data quality assessment. We reviewed current data quality assessment methods. The relevant study was identified in major databases and well-known institutional websites. We found the dimension of data was most frequently assessed. Completeness, accuracy, and timeliness were the three most-used attributes among a total of 49 attributes of data quality. The major quantitative assessment methods …
Rapid Assessment Of Bilateral Cochlear Implantation For Children In Kazakhstan, Lyazzat Kosherbayeva, David M. Hailey, Laura Kozhageldiyeva
Rapid Assessment Of Bilateral Cochlear Implantation For Children In Kazakhstan, Lyazzat Kosherbayeva, David M. Hailey, Laura Kozhageldiyeva
Faculty of Engineering and Information Sciences - Papers: Part A
Objectives: The aim of this study was to evaluate the effectiveness of bilateral cochlear implantation (CI) compared with unilateral CI for deaf children in the context of the Republic of Kazakhstan health system. Methods. A literature search was conducted, using the PubMed, Cochrane, and Embase data bases for studies that compared the effectiveness of bilateral and unilateral CI in children. The search included English language, publications from 2002-2012. Two reviewers independently evaluated all relevant studies. Administrative data relevant to CI in Kazakhstan were obtained from the Ministry of Health. Results: Three relevant systematic reviews and an health technology assessment report …
Thermodynamic Assessment Of Aluminium Production Through Carbosulphidation Route, Nazmul Huda, Muhammad A. Rhamdhani, M A. Dewan, Geoffrey A. Brooks, B J. Monaghan, L Prentice
Thermodynamic Assessment Of Aluminium Production Through Carbosulphidation Route, Nazmul Huda, Muhammad A. Rhamdhani, M A. Dewan, Geoffrey A. Brooks, B J. Monaghan, L Prentice
Brian Monaghan
Indirect carbothermal reduction of alumina for the production of aluminium has been claimed to be better compared to the existing Hall-Heroult process in-terms of energy usage, generation of perfluorocarbons and overall greenhouse gas emission. In the process, alumina is reduced to an intermediate compound which is then further reduced to Al. It has been shown from the previous thermodynamic study by the authors that high conversion of alumina can be obtained if it is reduced to Al-chloride, Al-nitride or Al-sulphide. This paper deals with detailed systematic thermodynamic analysis of the process through carbosulphidation route, where alumina is first reduced to …
Comparison Of Methodologies For Assessment Of Harmonic Current Emission Limits For Large Installations Connected To Lv Networks, Biyanvilage Perera, Sarath Perera, Philip Ciufo, Victor J. Gosbell
Comparison Of Methodologies For Assessment Of Harmonic Current Emission Limits For Large Installations Connected To Lv Networks, Biyanvilage Perera, Sarath Perera, Philip Ciufo, Victor J. Gosbell
Dr Philip Ciufo
With the proliferation of large, disturbing installations (loads and distribution generators) connected to public low voltage networks, managing the harmonic voltage levels in the network has become a key concern to distribution network service providers (DNSPs). Therefore, it is important that DNSPs limit the harmonic current emission by individual installations. This paper reviews a number of methodologies that exist in the current technical literature in relation to the assessment of harmonic current emission limits for disturbing installations connected to the public LV network. Application of these methodologies is demonstrated through a case study on a test network. The study shows …
Suitability Assessment Framework Of Agent-Based Software Architectures, Ghassan Beydoun, Graham Low, Paul Bogg
Suitability Assessment Framework Of Agent-Based Software Architectures, Ghassan Beydoun, Graham Low, Paul Bogg
Faculty of Engineering and Information Sciences - Papers: Part A
Context: A common distributed intelligent system architecture is Multi Agent Systems (MASs). Creating systems with this architecture has been recently supported by Agent Oriented Software Engineering (AOSE) methodologies. But two questions remain: how do we determine the suitability of a MAS implementation for a particular problem? And can this be determined without AOSE expertise? Objective: Given the relatively small number of software engineers that are AOSE experts, many problems that could be better solved with a MAS system are solved using more commonly known but not necessarily as suitable development approaches (e.g. object-oriented). The paper aims to empower software engineers, …
A Sax-Based Advanced Computational Tool For Assessment Of Clustered Rooftop Solar Pv Impacts On Lv And Mv Networks In Smart Grid, M J. E Alam, K M. Muttaqi, D Sutanto
A Sax-Based Advanced Computational Tool For Assessment Of Clustered Rooftop Solar Pv Impacts On Lv And Mv Networks In Smart Grid, M J. E Alam, K M. Muttaqi, D Sutanto
Faculty of Engineering and Information Sciences - Papers: Part A
Future distribution networks with increasing level of solar PV penetration will be managed using smart grid technologies capable of producing appropriate and timely response during normal and abnormal operational events. Distribution feeder loads vary throughout the day according to the trend of consumption of the customers. Solar PV outputs fluctuate in proportion to irradiance level of sun. Simultaneous occurrence of both of these variations would result in various operating conditions that may lead to unexpected events, and would require a large amount of network data to be processed and analyzed for decision making. It is envisaged that such data will …
Involvement Of Consumers In Health Technology Assessment Activities By Inahta Agencies, David Hailey, Sophie Werko, Rugayah Bakri, Alun Cameron, Britta Gohlen, Susan Myles, Jasmine Pwu, Jomkwan Yothasamut
Involvement Of Consumers In Health Technology Assessment Activities By Inahta Agencies, David Hailey, Sophie Werko, Rugayah Bakri, Alun Cameron, Britta Gohlen, Susan Myles, Jasmine Pwu, Jomkwan Yothasamut
Faculty of Engineering and Information Sciences - Papers: Part A
Objectives: To obtain further information from members of the International Network of Agencies for Health Technology Assessment (INAHTA) on the involvement of consumers in their programs. Methods: A questionnaire for a survey was developed and sent to member agencies in November 2010. Survey responses were compared with those from an earlier survey conducted in 2005. Results: Of the thirty-three agencies that provided responses, 67 percent involve consumers in some aspects of their health technology assessment (HTA) programs, compared with 57 percent in 2005. As in the earlier survey, most agencies reporting involvement have contact with consumer or patient organizations and …
Interfacial Assessment Of Cao-Al2o3-Sio2-Mgo Slags On Mgal2o4 Spinel, Hamed Abdeyazdan, Neslihan Dogan, M Akbar Rhamdhani, Michael Chapman, Brian J. Monaghan
Interfacial Assessment Of Cao-Al2o3-Sio2-Mgo Slags On Mgal2o4 Spinel, Hamed Abdeyazdan, Neslihan Dogan, M Akbar Rhamdhani, Michael Chapman, Brian J. Monaghan
Faculty of Engineering and Information Sciences - Papers: Part A
Steel cleanness is an important and growing research area driven by the demands to produce high quality steel. Lowering the inclusion content in steel is an important criterion for clean steel. It is therefore important to better understand the interaction between inclusions and slag to improve the removability of inclusions from liquid steel. For efficient inclusion removal the inclusions must attach/bond with the slag phase. The strength of the attachment can be characterised by the wettability of the slag on the inclusions. In this study, the dynamic wetting of ladle slags of the CaO-Al2O3-SiO2- MgO system on a solid spinel …
A Reflective Closed Loop Approach For Implementing A New Authentic Assessment-Based Teaching Facility For Electric Motor And Drive Systems, Craig Mclauchlan, Philip Ciufo, Sarath Perera
A Reflective Closed Loop Approach For Implementing A New Authentic Assessment-Based Teaching Facility For Electric Motor And Drive Systems, Craig Mclauchlan, Philip Ciufo, Sarath Perera
Faculty of Engineering and Information Sciences - Papers: Part A
BACKGROUND A new teaching facility with a focus on electric motor and drive systems has been implemented at the University of Wollongong. This facility aspires to use authentic assessment principles to assist in preparing students to properly utilise electric motor and drive systems in professional practice. In an attempt to realise this aim, the implementation of this facility was undertaken using a reflective closedloop approach, addressing the educational outcomes achieved by the students. Setting a holistic scope for the implementation beyond technical concerns to include educational outcomes was critical to the success achieved and has laid the foundation for further …
Innovations Of The Assessment System In Introductory Statistics Subject, Norhayati Baharun, Anne Porter
Innovations Of The Assessment System In Introductory Statistics Subject, Norhayati Baharun, Anne Porter
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents the results of a study investigating the innovations in the assessment system implemented in an introductory statistics subject (STAT131) at the University of Wollongong (UOW). For several years, innovations have been introduced to STAT131 particularly in the assessment system. These included the approaches of assignments, summary and mid-session test in 2003; assignments, laboratory work and midsession test from 2004 to 2005; four tests and three make-up tests in 2006; six tests with three compulsory and two optional tests in 2007; four tests (the best of three test marks were chosen) and opportunity to re-sit the tests in …
Power Quality Emission Assessment Of Photovoltaic Inverters Based On Iec Technical Report 61000-3-15:2011, Devinda Perera, Philip Ciufo, Lasantha G. Meegahapola, Sarath Perera
Power Quality Emission Assessment Of Photovoltaic Inverters Based On Iec Technical Report 61000-3-15:2011, Devinda Perera, Philip Ciufo, Lasantha G. Meegahapola, Sarath Perera
Faculty of Engineering and Information Sciences - Papers: Part A
The International Electrotechnical Committee Technical Report IEC 61000-3-15:2011 provides electromagnetic compatibility requirements and test conditions for distributed generators up to 75 A per phase. In the current research, two commercially available photovoltaic (PV) inverters up to the capacity of 3600 W were tested following the guidelines proposed in IEC 61000-3-15 in relation to low order harmonic emission and flicker emission. In addition, the harmonic and flicker emission behaviour of the PV inverters were investigated under varying irradiation conditions. Both PV inverters were observed to comply with the emission requirements prescribed by the technical report under most conditions except for even …
Fall Risk Assessment In Older People Using Inertial Sensors, Maryam Ghahramani, Fazel Naghdy, David Stirling, Golshah Naghdy, Jan Potter
Fall Risk Assessment In Older People Using Inertial Sensors, Maryam Ghahramani, Fazel Naghdy, David Stirling, Golshah Naghdy, Jan Potter
Faculty of Engineering and Information Sciences - Papers: Part A
Abstract of paper that was presented at The 12th National Conference of Emerging Researchers in Ageing.
Voltage Unbalance Emission Assessment: Sources Of Contribution And Their Ranking, U Jayatunga, Sarath Perera, P Ciufo, A P. Agalgaonkar
Voltage Unbalance Emission Assessment: Sources Of Contribution And Their Ranking, U Jayatunga, Sarath Perera, P Ciufo, A P. Agalgaonkar
Faculty of Engineering and Information Sciences - Papers: Part A
etermining sources of voltage unbalance (VU) and quantifying their individual contributions in an interconnected network is a complex task due to multiple interactions that take place between them. Post-connection VU emission assessment techniques in relation to customer installations are important not only in compliance assessment according to IEC/TR 61000-3- 13:2008 Limits - Assessment of emission limits for the connection of unbalanced installations to MV, HV and EHV power systems, but also in determining the various emission contributors in the power system being considered. This paper presents a case study on the application of a recently developed post-connection VU emission assessment …
Environmental Impact Assessment Of Post Tensioned And Reinforced Concrete Slab Construction, D Miller, J H. Doh, H Guan, M Mulvey, S Fragomeni, T Mccarthy, T Peters
Environmental Impact Assessment Of Post Tensioned And Reinforced Concrete Slab Construction, D Miller, J H. Doh, H Guan, M Mulvey, S Fragomeni, T Mccarthy, T Peters
Faculty of Engineering and Information Sciences - Papers: Part A
In Australia, approximately 30 million tonnes of finished building products are produced each year, with over 56% of this quantity, by mass, being attributed to concrete and a further 6%, steel, highlighting the importance of maximising design efficiencies. The cement industry has been reported responsible for 5% of global carbon dioxide emissions while the construction, operation and maintenance of buildings are estimated to account for 50% of all energy usage and more than 50% of all anthropogenic greenhouse gas (GHG) emissions globally. This research determines some environmental advantages achievable through application of alternate concrete slab construction methods for a typical …
Comparison Of Methodologies For Assessment Of Harmonic Current Emission Limits For Large Installations Connected To Lv Networks, Biyanvilage Perera, Sarath Perera, Philip Ciufo, Victor J. Gosbell
Comparison Of Methodologies For Assessment Of Harmonic Current Emission Limits For Large Installations Connected To Lv Networks, Biyanvilage Perera, Sarath Perera, Philip Ciufo, Victor J. Gosbell
Faculty of Engineering and Information Sciences - Papers: Part A
With the proliferation of large, disturbing installations (loads and distribution generators) connected to public low voltage networks, managing the harmonic voltage levels in the network has become a key concern to distribution network service providers (DNSPs). Therefore, it is important that DNSPs limit the harmonic current emission by individual installations. This paper reviews a number of methodologies that exist in the current technical literature in relation to the assessment of harmonic current emission limits for disturbing installations connected to the public LV network. Application of these methodologies is demonstrated through a case study on a test network. The study shows …
Thermodynamic Assessment Of Aluminium Production Through Carbosulphidation Route, Nazmul Huda, Muhammad A. Rhamdhani, M A. Dewan, Geoffrey A. Brooks, B J. Monaghan, L Prentice
Thermodynamic Assessment Of Aluminium Production Through Carbosulphidation Route, Nazmul Huda, Muhammad A. Rhamdhani, M A. Dewan, Geoffrey A. Brooks, B J. Monaghan, L Prentice
Faculty of Engineering and Information Sciences - Papers: Part A
Indirect carbothermal reduction of alumina for the production of aluminium has been claimed to be better compared to the existing Hall-Heroult process in-terms of energy usage, generation of perfluorocarbons and overall greenhouse gas emission. In the process, alumina is reduced to an intermediate compound which is then further reduced to Al. It has been shown from the previous thermodynamic study by the authors that high conversion of alumina can be obtained if it is reduced to Al-chloride, Al-nitride or Al-sulphide. This paper deals with detailed systematic thermodynamic analysis of the process through carbosulphidation route, where alumina is first reduced to …
The Use Of Transient State Estimation For Voltage Dip/Sag Assessment, A Farzanehrafat, N R. Watson, S Perera
The Use Of Transient State Estimation For Voltage Dip/Sag Assessment, A Farzanehrafat, N R. Watson, S Perera
Faculty of Engineering and Information Sciences - Papers: Part A
Voltage sags are common events on the electric power network caused by network faults and the large load connections. This power quality issue can affect a wide range of electrical equipment malfunctions, interruptions or losses and are of particular concern to industry. A complete knowledge of the source is a prerequisite before any remedial action is taken. On the other hand, it is not feasible to fully monitor voltage sags occurred throughout the network. For this reason state estimation techniques have been extended into power quality issues and called Power Quality State Estimation (PQSE). This paper, introduces the use of …
Quantitative Assessment Of Landslide Frequency Versus Magnitude Of Displacement, P N. Flentje, R N. Chowdhury, Anthony Miner, C Mazengarb
Quantitative Assessment Of Landslide Frequency Versus Magnitude Of Displacement, P N. Flentje, R N. Chowdhury, Anthony Miner, C Mazengarb
Faculty of Engineering and Information Sciences - Papers: Part A
Understanding landslide frequency is an important challenge in the process of the assessment of landslide risk. Importantly, from the perspective of landslide risk management today, this paper investigates the relationship between 'how often will a landslide move' and 'how far will it move when it does move'. Such relationships must reflect the continuum between the lower frequency 'catastrophic' type failures and the much higher frequency millimeter type magnitudes of displacement; and intervals along this continuum will likely have different management significance. So, when considering the frequency of landslide move-ment, the full question must be 'what is the frequency of a …
The Map Is Useless Unless You Know Where You Are: Information Literacy Pre-Assessment As A Tool For Understanding And Collaboration, Jason Ertz
Library Scholarship
No abstract provided.
Strategic Analysis Adaptation Assessment: An Alternative To The Storyline Scenario, Susan Krumdieck, Mohammed Imroz Sohel
Strategic Analysis Adaptation Assessment: An Alternative To The Storyline Scenario, Susan Krumdieck, Mohammed Imroz Sohel
Faculty of Engineering and Information Sciences - Papers: Part A
Scenarios of future trends are widely used by government and international agencies to inform decision-making. While story line scenarios may be useful for business or government thinking, they are not effective at informing engineering research, innovation and design, and add very little to the understanding of sustainability. This paper presents a strategic analysis approach to complex systems, which relies on identification of risks to important activities and wellbeing. This method mimics the actual processes of anthropogenic continuity, where people explore, experiment, learn from success and mistakes, and adapt and evolve. The method is applied to the case study of transportation …
Assessment Of Drucker-Prager Type Plasticity Models For Predicting The Behaviour Of Frp-Confined Concrete, T Yu, J G. Teng, Y L. Wong, S L. Dong
Assessment Of Drucker-Prager Type Plasticity Models For Predicting The Behaviour Of Frp-Confined Concrete, T Yu, J G. Teng, Y L. Wong, S L. Dong
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents a critical assessment of the ability of existing Drucker-Prager (D-P) type plasticity models to predict the behaviour of confined concrete using both experimental observations and a recent analytical model. This assessment shows that for a D-P plasticity model to succeed in predicting the behaviour of FRP-confined and other passively-confined concrete, it needs to possess the following three features: (a) a yield criterion which includes the third deviatoric stress invariant, (b) a hardening/softening rule which is dependent on the confining pressure; and (c) a flow rule which is dependent on both the confining pressure and the rate of …
Quantitative Landslide Hazard Assessment In An Urban Area, Phillip N. Flentje, Robin N. Chowdhury
Quantitative Landslide Hazard Assessment In An Urban Area, Phillip N. Flentje, Robin N. Chowdhury
Faculty of Engineering and Information Sciences - Papers: Part A
Before decisions can be made concerning the management of sloping areas subject to landsliding, systematic approaches for hazard and risk assessment must be developed. This paper is limited to a discussion of hazard assessment and describes quantitative approaches which have been developed for existing landslides. Consideration of areas of potential landsliding is outside the scope of the paper. The approach described here is based on (a) monitoring of subsurface shear movement at instrumented sites and (b) the percentage exceedance time of cumulative rainfalls considering different selected periods of antecedent rainfall. This approach is used in conjunction with a simpler approach, …
Geotechnical Assessment And Management Of 148 Landslides Triggered By A Major Storm Event In Wollongong, Australia, P N. Flentje, R N. Chowdhury
Geotechnical Assessment And Management Of 148 Landslides Triggered By A Major Storm Event In Wollongong, Australia, P N. Flentje, R N. Chowdhury
Faculty of Engineering and Information Sciences - Papers: Part A
On the 17th August 1998 a severe rainfall event occurred over a widespread area of the City of Wollongong. During this storm, 1 person drowned and an estimated $50 to $100 million damage was caused to the City of Wollongong. Road access to the City was cut by raised water levels and debris flows covering and or scouring road and rail routes for up to 36 hours following this event. A geotechnical team of 3, including the first author, was organised at very short notice during the response phase of the emergency operations on the early morning of the 20th …
Landslide Risk Assessment - Development Of A Hazard Consequence Approach, Chit Ko Ko, Phillip N. Flentje, Robin N. Chowdhury
Landslide Risk Assessment - Development Of A Hazard Consequence Approach, Chit Ko Ko, Phillip N. Flentje, Robin N. Chowdhury
Faculty of Engineering and Information Sciences - Papers: Part A
Several Landslide Hazard and Risk Assessment methods have been developed and used in the State of New South Wales (NSW), Australia. The Rail Services Australia Geotechnical Services and the Roads and Traffic Authority of NSW have each developed Risk Assessment procedures suitable to their own specific needs. A generic risk management methodology is presented in the Australian Standard/New Zealand Standard (AS/NZS) 4360:1995. An approach similar to the (AS/NZS) 4360:1995 Risk Management Standard has been applied by a NSW State Emergency Services geotechnical team (which included one of the writers) to 191 problem sites in the Wollongong Area, following a major …
Effective Urban Landslide Hazard Assessment, Robin N. Chowdhury, Phillip N. Flentje
Effective Urban Landslide Hazard Assessment, Robin N. Chowdhury, Phillip N. Flentje
Faculty of Engineering and Information Sciences - Papers: Part A
Landslide hazard assessment is a vitally important component of any strategy for the management of risk of instability in hilly areas. Within many urban areas, reactivation of landslides is an important component of risk. Yet, most qualitative approaches do not differentiate between the hazard of individual landslides. Two quantitative approaches are introduced in this paper both of which utilise GISbased accurate maps of geology and landslip as well as a landslide database. The first method is based on historical recurrence of individual landslides. The second method is based on monitoring of subsurface shear movements, and their relationships to rainfall. Both …
A Landslide Database For Landslide Hazard Assessment, Robin N. Chowdhury, Phillip N. Flentje
A Landslide Database For Landslide Hazard Assessment, Robin N. Chowdhury, Phillip N. Flentje
Faculty of Engineering and Information Sciences - Papers: Part A
Assessing the hazard and risk of slope instability and landsliding requires a consideration of basic geological and geotechnical factors which control stability as well as external agents or events which decrease stability and which may trigger landsliding. Prediction of slope performance is difficult and it is, therefore, considered appropriate to develop approaches for hazard and risk assessment. This paper is concerned primarily with one important aspect or element of such an approach. The essential and desirable features of a landslide database are outlined with particular reference to an urban area in New South Wales, Australia. The procedures and processes for …
Risk Assessment Of Sloping Land Using Gis-Based Mapping, Phil N. Flentje, Robin N. Chowdhury
Risk Assessment Of Sloping Land Using Gis-Based Mapping, Phil N. Flentje, Robin N. Chowdhury
Faculty of Engineering and Information Sciences - Papers: Part A
In this paper, attention is drawn to GIS-based techniques for mapping and risk assessment for slopes and landslides. The authors focus on an approach developed recently for mapping of geology and slope stability in the Northern Illawarra (or the Northern Suburbs of Greater Wollongong Area) in New South Wales, Australia. The use of databases of geology and land instability and use of other GIS-based information relevant to sloping land for the development of a valid hazard and risk assessment procedure is explored. The developed approach will be applicable to other sloping areas and, in particular, urban areas both nationally and …
Geological And Land Instability Mapping Using A Gis Package As A Building Block For The Development Of A Risk Assessment Procedure, R N. Chowdhury, P N. Flentje
Geological And Land Instability Mapping Using A Gis Package As A Building Block For The Development Of A Risk Assessment Procedure, R N. Chowdhury, P N. Flentje
Faculty of Engineering and Information Sciences - Papers: Part A
A modern land instability risk assessment procedure must include an accurate geological framework and land instability database. Geological and land instability mapping of the northern suburbs of the City of Wollongong represents a considerable challenge and is to be achieved using computer generated 1:4000 topographic base maps. Using an integrated series of techniques, including computer modelling of the escarpment geology and field mapping techniques, a new series of geological maps has been produced. Meanwhile an exhaustive land instability database of the region has been compiled. A flexible approach to mapping and data compilation is very useful and confirms the viability …