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Articles 1 - 21 of 21
Full-Text Articles in Social and Behavioral Sciences
Relationship Between Indoor Air Temperatures And Energy Bills For Low Income Homes In Australia, Clayton Mcdowell, Georgios Kokogiannakis, Laia Ledo Gomis, Paul Cooper
Relationship Between Indoor Air Temperatures And Energy Bills For Low Income Homes In Australia, Clayton Mcdowell, Georgios Kokogiannakis, Laia Ledo Gomis, Paul Cooper
Faculty of Engineering and Information Sciences - Papers: Part B
Energy poverty is a prevalent issue in Australia and other countries across the globe especially for people with a low income. This paper seeks to investigate the relationship of energy consumption and indoor air temperatures and is separated into 3 sections; a comparison of actual electricity consumption to energy benchmarks provided by the Australian Energy Regulator, monitoring results of living room air temperature for the winter of 2015, and an analysis of living room air temperatures versus electricity consumption. The results of a comparison of electricity consumption of 119 low income elderly peoples (60+) dwellings to that of the energy …
Correlation Between Zn-Rich Phase And Corrosion/Oxidation Behavior Of Sn-8zn-3bi Alloy, Xin Zhang, Chong Li, Zhiming Gao, Yongchang Liu, Zongqing Ma, Liming Yu, Hui Jun Li
Correlation Between Zn-Rich Phase And Corrosion/Oxidation Behavior Of Sn-8zn-3bi Alloy, Xin Zhang, Chong Li, Zhiming Gao, Yongchang Liu, Zongqing Ma, Liming Yu, Hui Jun Li
Faculty of Engineering and Information Sciences - Papers: Part A
The microstructure of Sn-8Zn-3Bi alloy was refined by increasing the solidification rate and the correlation between Zn-rich phase and the corrosion/oxidation behavior of the alloy was investigated. The Zn-rich phase transforms from coarse flakes to fine needles dispersed in the β-Sn matrix with the increase of the cooling rate. The transformation of Zn-rich precipitates enhances the anticorrosive ability of Sn-8Zn-3Bi alloy in 3.5 wt.% NaCl solution. On the contrary, Sn-8Zn-3Bi alloy with a fine needle-like Zn-rich phase shows poor oxidation resistance under air atmosphere, due to the fast diffusion of Zn atoms in Sn matrix.
Waste Activated Sludge Hydrolysis And Acidification: A Comparison Between Sodium Hydroxide And Steel Slag Addition, Ying Zhang, Chaojie Zhang, Xuan Zhang, Leiyu Feng, Yongmei Li, Qi Zhou
Waste Activated Sludge Hydrolysis And Acidification: A Comparison Between Sodium Hydroxide And Steel Slag Addition, Ying Zhang, Chaojie Zhang, Xuan Zhang, Leiyu Feng, Yongmei Li, Qi Zhou
Faculty of Engineering and Information Sciences - Papers: Part A
Alkaline treatment with steel slag and NaOH addition were investigated under different pH conditions for the fermentation of waste activated sludge. Better performance was achieved in steel slag addition scenarios for both sludge hydrolysis and acidification. More solubilization of organic matters and much production of higher VFA (volatile fatty acid) in a shorter time can be achieved at pH. 10 when adjusted by steel slag. Higher enzyme activities were also observed in steel slag addition scenarios under the same pH conditions. Phosphorus concentration in the supernatant increased with fermentation time and pH in NaOH addition scenarios, while in contrast most …
Interaction Prediction Between Groundwater And Quarry Extension Using Discrete Choice Models And Artificial Neural Networks, Johan Barthelemy, Timoteo Carletti, Louise Collier, Vincent Hallet, Marie Moriame, Annick Sartenear
Interaction Prediction Between Groundwater And Quarry Extension Using Discrete Choice Models And Artificial Neural Networks, Johan Barthelemy, Timoteo Carletti, Louise Collier, Vincent Hallet, Marie Moriame, Annick Sartenear
Faculty of Engineering and Information Sciences - Papers: Part A
Groundwater and rock are intensively exploited in the world. When a quarry is deepened the water table of the exploited geological formation might be reached. A dewatering system is therefore installed so that the quarry activities can continue, possibly impacting the nearby water catchments. In order to recommend an adequate feasibility study before deepening a quarry, we propose two interaction indices between extractive activity and groundwater resources based on hazard and vulnerability parameters used in the assessment of natural hazards. The levels of each index (low, medium, high, very high) correspond to the potential impact of the quarry on the …
Relations Between Robustness And Rka Security Under Public-Key Encryption, Hui Cui, Yi Mu, Man Ho Au
Relations Between Robustness And Rka Security Under Public-Key Encryption, Hui Cui, Yi Mu, Man Ho Au
Faculty of Engineering and Information Sciences - Papers: Part A
We revisit the notions of robustness introduced by Abdalla, Bellare and Neven (TCC 2010), and related-key attack (RKA) security raised by Bellare, Cash and Miller (ASIACRYPT 2011). In the setting of public-key encryption (PKE), robustness means that it is hard to produce a ciphertext that is valid for two different users, while RKA security means that a PKE scheme is still secure even when an attacker can induce modifications in a decryption key, and subsequently observe the outcome of this PKE scheme under this modified key. In this paper, we explore the relationship between RKA security and various notions of …
Comparison Of Resting Energy Expenditure Between Cancer Subjects And Healthy Controls: A Meta-Analysis, Thi Yen Vi Nguyen, Marijka Batterham, Cheree Edwards
Comparison Of Resting Energy Expenditure Between Cancer Subjects And Healthy Controls: A Meta-Analysis, Thi Yen Vi Nguyen, Marijka Batterham, Cheree Edwards
Faculty of Engineering and Information Sciences - Papers: Part A
There is conflicting evidence surrounding the extent of changes in resting energy expenditure (REE) in cancer. This meta-analysis aimed to establish the mean difference in REE, as kilojoules per kilogram fat-free mass, among cancer patients when compared to healthy control subjects. The secondary aim was to determine differences among different cancer types. PubMed, Cochrane Library, Medline, Science Direct, Scopus, Web of Science, Wiley Online Library, and ProQuest Central were searched from the earliest records until March 2014. Studies were included if measured REE was reported as kilojoules or kilocalories per kilogram fat-free mass (FFM) in adult subjects with cancer. Twenty-seven …
Energy Exchange Between Electric Vehicle Load And Wind Generating Utilities, Ahmad Tavakoli, Michael Negnevitsky, Duc Thanh Nguyen, Kashem M. Muttaqi
Energy Exchange Between Electric Vehicle Load And Wind Generating Utilities, Ahmad Tavakoli, Michael Negnevitsky, Duc Thanh Nguyen, Kashem M. Muttaqi
Faculty of Engineering and Information Sciences - Papers: Part A
This paper proposes a novel approach to energy exchange between electric vehicle (EV) load and wind generation utilities participating in the day-ahead energy, balancing, and regulation markets. An optimal bidding/offering strategy model is developed to mitigate wind energy and EV imbalance threats, and optimize EV charging profiles. A new strategy model is based on optimizing decision making of a wind generating company (WGenCO) in selecting the best option among the use of the balancing or regulation services, the use of the energy storage system (ESS) and the use of all of them to compensate wind power deviation. Energy imbalance is …
Relationship Between Ct-Derived Gross Tumour Volume (Gtv) And The Fdg-Pet/Ct-Derived Metabolic Tumour Volume (Mtv): An Exploratory Study In Non-Small Cell Lung Cancer Patients Treated With Radical Radiotherapy, A Oar, Michael Jameson, I. A Ho Shon, Penny Phan, Lois C. Holloway, Danyang Wang, Joseph Descallar, A Pramana, Shalini K. Vinod, E Koh, M Field
Relationship Between Ct-Derived Gross Tumour Volume (Gtv) And The Fdg-Pet/Ct-Derived Metabolic Tumour Volume (Mtv): An Exploratory Study In Non-Small Cell Lung Cancer Patients Treated With Radical Radiotherapy, A Oar, Michael Jameson, I. A Ho Shon, Penny Phan, Lois C. Holloway, Danyang Wang, Joseph Descallar, A Pramana, Shalini K. Vinod, E Koh, M Field
Faculty of Engineering and Information Sciences - Papers: Part B
Poster presentation from The Royal Australian and New Zealand College of Radiologists 65th Annual Scientific Meeting, 29 October-1 November 2015, Adelaide, Australia
Structural Evolution Of Electrodes In The Ncr And Cgr Cathode-Containing Commercial Lithium-Ion Batteries Cycled Between 3.0 And 4.5 V: An Operando Neutron Powder-Diffraction Study, Wei Kong Pang, Moshiul Alam, Vanessa K. Peterson, Neeraj Sharma
Structural Evolution Of Electrodes In The Ncr And Cgr Cathode-Containing Commercial Lithium-Ion Batteries Cycled Between 3.0 And 4.5 V: An Operando Neutron Powder-Diffraction Study, Wei Kong Pang, Moshiul Alam, Vanessa K. Peterson, Neeraj Sharma
Faculty of Engineering and Information Sciences - Papers: Part A
The dissimilar lattice-evolution of the isostructural layered Li(Ni,Co,Al)O2 (NCR) and Li(Ni,Co,Mn)O2 (CGR) cathodes in commercial lithium-ion batteries during overcharging/discharging was examined using operando neutron powder-diffraction. The stacking axis (c parameter) of both cathodes expands on initial lithiation and contracts on further lithiation. Although both the initial increase and later decrease are smaller for the CGR cathode, the overall change between battery charged and discharged states of the c parameter is larger for the CGR (1.29%) than for the NCR cathode (0.33%). We find these differences are correlated to the transition metal to oxygen bond (as measured through …
Relationship Between Learning In The Engineering Laboratory And Student Evaluations, Sasha Nikolic, Thomas F. Suesse, Thomas Goldfinch, Timothy J. Mccarthy
Relationship Between Learning In The Engineering Laboratory And Student Evaluations, Sasha Nikolic, Thomas F. Suesse, Thomas Goldfinch, Timothy J. Mccarthy
Faculty of Engineering and Information Sciences - Papers: Part A
BACKGROUND OR CONTEXT This study is built upon previous research that developed an instrument to measure the learning objectives of the laboratory across the cognitive, psychomotor and affective domains with research that investigated student evaluations of sessional laboratory demonstrators, laboratory experiments and facilities. This research highlighted the importance of laboratory work in engineering education, and the need to improve our understanding of how learning occurs in the laboratory. PURPOSE OR GOAL Student evaluations are heavily used in higher education, and a greater understanding is needed on how these evaluations relate to learning. APPROACH An instrument used to measure learning in …
The Relationship Between The Quality Of Active Frontages And Public Perceptions Of Public Spaces, Emma Elizabeth Heffernan, Troy W. Heffernan, Wei Pan
The Relationship Between The Quality Of Active Frontages And Public Perceptions Of Public Spaces, Emma Elizabeth Heffernan, Troy W. Heffernan, Wei Pan
Faculty of Engineering and Information Sciences - Papers: Part A
Active frontages are often advocated in best practice guidance and by local planning authorities. However, little research has been carried out to establish what benefits, if any, active frontages offer. Previous research in this area has been limited to examining observed behaviour rather than analysing public perceptions. This article aims to improve the understanding of the relationship between the quality of an active frontage and public perceptions of the public space the frontage addresses. The research was carried out through a combination of a critical literature review and a questionnaire survey that engaged 152 participants. The participants' perceptions of a …
Sludge Cycling Between Aerobic, Anoxic And Anaerobic Regimes To Reduce Sludge Production During Wastewater Treatment: Performance, Mechanisms, And Implications, Galilee Semblante, Faisal Ibney Hai, Huu H. Ngo, Wenshan Guo, Sheng-Jie You, William Price, Long Nghiem
Sludge Cycling Between Aerobic, Anoxic And Anaerobic Regimes To Reduce Sludge Production During Wastewater Treatment: Performance, Mechanisms, And Implications, Galilee Semblante, Faisal Ibney Hai, Huu H. Ngo, Wenshan Guo, Sheng-Jie You, William Price, Long Nghiem
Faculty of Engineering and Information Sciences - Papers: Part A
Alternate cycling of sludge in aerobic, anoxic, and anaerobic regimes is a promising strategy that can reduce the sludge yield of conventional activated sludge (CAS) by up to 50% with potentially lower capital and operating cost than physical- and/or chemical-based sludge minimisation techniques. The mechanisms responsible for reducing sludge yield include alterations to cellular metabolism and feeding behaviour (metabolic uncoupling, feasting/fasting, and endogenous decay), biological floc destruction, and predation on bacteria by higher organisms. Though discrepancies across various studies are recognisable, it is apparent that sludge retention time, oxygen-reduction potential of the anaerobic tank, temperature, sludge return ratio and loading …
Comparison Between Sequential And Simultaneous Application Of Activated Carbon With Membrane Bioreactor For Trace Organic Contaminant Removal, Luong N. Nguyen, Faisal I. Hai, Jinguo Kang, Long D. Nghiem, William E. Price, Wenshan Guo, Huu H. Ngo, Kuo-Lun Tung
Comparison Between Sequential And Simultaneous Application Of Activated Carbon With Membrane Bioreactor For Trace Organic Contaminant Removal, Luong N. Nguyen, Faisal I. Hai, Jinguo Kang, Long D. Nghiem, William E. Price, Wenshan Guo, Huu H. Ngo, Kuo-Lun Tung
Faculty of Engineering and Information Sciences - Papers: Part A
The removal efficiency of 22 selected trace organic contaminants by sequential application of granular activated carbon (GAC) and simultaneous application of powdered activated carbon (PAC) with membrane bioreactor (MBR) was compared in this study. Both sequential application of GAC following MBR treatment (MBR–GAC) and simultaneous application of PAC within MBR (PAC–MBR) achieved improved removal (over 95%) of seven hydrophilic and biologically persistent compounds, which were less efficiently removed by MBR-only treatment (negligible to 70%). However, gradual breakthrough of these compounds occurred over an extended operation period. Charged compounds, particularly, fenoprop and diclofenac, demonstrated the fastest breakthrough (complete and 50–70%, in …
Difference Between Far-Infrared Photoconductivity Spectroscopy And Absorption Spectroscopy: Theoretical Evidence Of The Electron Reservoir Mechanism, Tadashi Toyoda, Maho Fujita, Tomohisa Uchida, Nobuyoshi Hiraiwa, Taturo Fukuda, Hideki Koizumi, Chao Zhang
Difference Between Far-Infrared Photoconductivity Spectroscopy And Absorption Spectroscopy: Theoretical Evidence Of The Electron Reservoir Mechanism, Tadashi Toyoda, Maho Fujita, Tomohisa Uchida, Nobuyoshi Hiraiwa, Taturo Fukuda, Hideki Koizumi, Chao Zhang
Faculty of Engineering and Information Sciences - Papers: Part A
The intriguing difference between far-infrared photoconductivity spectroscopy and absorption spectroscopy in the measurement of the magnetoplasmon frequency in GaAs quantum wells reported by Holland et al. [Phys. Rev. Lett. 93, 186804 (2004)] remains unexplained to date. This Letter provides a consistent mechanism to solve this puzzle. The mechanism is based on the electron reservoir model for the integer quantum Hall effect in graphene [Phys. Lett. A 376, 616 (2012)]. We predict sharp kinks to appear in the magnetic induction dependence of the magnetoplasmon frequency at very low temperatures such as 14 mK in the same GaAs quantum well sample used …
On The Correlation Between The Effectiveness Of Metamorphic Relations And Dissimilarities Of Test Case Executions, Yuxiang Cao, Zhi Quan Zhou, Tsong Yueh Chen
On The Correlation Between The Effectiveness Of Metamorphic Relations And Dissimilarities Of Test Case Executions, Yuxiang Cao, Zhi Quan Zhou, Tsong Yueh Chen
Faculty of Engineering and Information Sciences - Papers: Part A
Metamorphic testing (MT) is a property-based automated software testing method. It alleviates the oracle problem by testing programs against metamorphic relations (MRs), which are necessary properties among multiple executions of the target program. For a given problem, usually more than one MR can be identified. It is therefore of practical importance for testers to know the nature of good MRs, that is, which MRs are likely to have higher chances of revealing failures. To address this issue we investigate the correlation between the faultdetection effectiveness of MRs and the dissimilarity (distance) of test case execution profiles. Empirical study results reveal …
Modeling Of Crossbred Cattle Growth, Comparison Between Cubic And Piecewise Random Regression Models, H R. Mirzaei, Wayne S. Pitchford, Arunas P. Verbyla
Modeling Of Crossbred Cattle Growth, Comparison Between Cubic And Piecewise Random Regression Models, H R. Mirzaei, Wayne S. Pitchford, Arunas P. Verbyla
Faculty of Engineering and Information Sciences - Papers: Part A
Two analyses, cubic and piecewise random regression, were conducted to model growth of crossbred cattle from birth to about two years of age, investigating the ability of a piecewise procedure to fit growth traits without the complications of the cubic model. During a four-year period (1994-1997) of the Australian "Southern Crossbreeding Project", mature Hereford cows (N = 581) were mated to 97 sires of Angus, Belgian Blue, Hereford, Jersey, Limousin, South Devon, and Wagyu breeds, resulting in 1141 steers and heifers born over four years. Data included 13 (for steers) and eight (for heifers) live body weight measurements, made approximately …
A Study Of Hippocampal Shape Difference Between Genders By Efficient Hypothesis Test And Discriminative Deformation, Luping Zhou, Richard Hartley, Paulette Lieby, Nick Barnes, Kaarin Anstey, Nicolas Cherbuin, Perminder Sachdev
A Study Of Hippocampal Shape Difference Between Genders By Efficient Hypothesis Test And Discriminative Deformation, Luping Zhou, Richard Hartley, Paulette Lieby, Nick Barnes, Kaarin Anstey, Nicolas Cherbuin, Perminder Sachdev
Faculty of Engineering and Information Sciences - Papers: Part A
Hypothesis testing is an important way to detect the statistical difference between two populations. In this paper, we use the Fisher permutation and bootstrap tests to differentiate hippocampal shape between genders. These methods are preferred to traditional hypothesis tests which impose assumptions on the distribution of the samples. An efficient algorithm is adopted to rapidly perform the exact tests. We extend this algorithm to multivariate data by projecting the original data onto an "informative direction" to generate a scalar test statistic. This "informative direction" is found to preserve the original discriminative information. This direction is further used in this paper …
Finite-Element Analysis To Determine Effect Of Monolimb Flexibility On Structural Strength And Interaction Between Residual Limb And Prosthetic Socket, Winson Lee, Ming Zhang, David A. Boone, Bill Contoyannis
Finite-Element Analysis To Determine Effect Of Monolimb Flexibility On Structural Strength And Interaction Between Residual Limb And Prosthetic Socket, Winson Lee, Ming Zhang, David A. Boone, Bill Contoyannis
Faculty of Engineering and Information Sciences - Papers: Part A
Monolimb refers to a kind of transtibial prostheses having the socket and shank molded into one piece of thermoplastic material. One of its characteristics is that the shank is made of a material that can deform during walking, which can simulate ankle joint motion to some extent. Changes in shank geometry can alter the stress distribution within the monolimb and at the residual limb-socket interface and, respectively, affect the deformability and structural integrity of the prosthesis and comfort perceived by amputees. This paper describes the development of a finite-element model for the study of the structural behavior of monolimbs with …
Finite Element Modeling Of Contact Interface Between Trans-Tibial Residual Limb And Prosthetic Socket, Winson Lee, Ming Zhang, Xiaohong Jia, Jason Cheung
Finite Element Modeling Of Contact Interface Between Trans-Tibial Residual Limb And Prosthetic Socket, Winson Lee, Ming Zhang, Xiaohong Jia, Jason Cheung
Faculty of Engineering and Information Sciences - Papers: Part A
Finite element method has been identified as a useful tool to understand the load transfer mechanics between a residual limb and its prosthetic socket. This paper proposed a new practical approach in modeling the contact interface with consideration of the friction/slip conditions and pre-stresses applied on the limb within a rectified socket. The residual limb and socket were modeled as two separate structures and their interactions were simulated using automated contact methods. Some regions of the limb penetrated into the socket because of socket modification. In the first step of the simulation, the penetrated limb surface was moved onto the …
Load Transfer Mechanics Between Trans-Tibial Prosthetic Socket And Residual Limb-Dynamic Effects, Xiaohong Jia, Ming Zhang, Winson Lee
Load Transfer Mechanics Between Trans-Tibial Prosthetic Socket And Residual Limb-Dynamic Effects, Xiaohong Jia, Ming Zhang, Winson Lee
Faculty of Engineering and Information Sciences - Papers: Part A
The effects of inertial loads on the interface stresses between trans-tibial residual limb and prosthetic socket were investigated. The motion of the limb and prosthesis was monitored using a Vicon motion analysis system and the ground reaction force was measured by a force platform. Equivalent loads at the knee joint during walking were calculated in two cases with and without consideration of the material inertia. A 3D nonlinear finite element (FE) model based on the actual geometry of residual limb, internal bones and socket liner was developed to study the mechanical interaction between socket and residual limb during walking. To …
Chain Entanglements And Fracture Energy In Interfaces Between Immiscible Polymers, Leonardo Silvestri, Hugh Ralph Brown, Stefano Carra, Sergio Carra
Chain Entanglements And Fracture Energy In Interfaces Between Immiscible Polymers, Leonardo Silvestri, Hugh Ralph Brown, Stefano Carra, Sergio Carra
Faculty of Engineering and Information Sciences - Papers: Part A
It is a very well-known experimental fact that the toughness of interfaces obtained by joining pairs of immiscible glassy polymers is strongly correlated to the interfacial width. Several models have been proposed in the literature to estimate the fracture energy of these interfaces, but the agreement displayed with the experimental data cannot be considered satisfactory. In this paper a new model is proposed for polymers with molecular weight higher than the critical value for the onset of entanglements. The model is based on a precise and realistic calculation of the areal density of entangled strands across the interface, that is …