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Articles 451 - 480 of 607
Full-Text Articles in Entire DC Network
Steady Laminar Natural Convection Of Nanofluid Under The Impact Of Magnetic Field On Two-Dimensional Cavity With Radiation, S Saleem, Trung Nguyen-Thoi, Ahmad Shafee, Zhixiong Li, Ebenezer Bonyah, A Khan, Iqra Shehzadi
Steady Laminar Natural Convection Of Nanofluid Under The Impact Of Magnetic Field On Two-Dimensional Cavity With Radiation, S Saleem, Trung Nguyen-Thoi, Ahmad Shafee, Zhixiong Li, Ebenezer Bonyah, A Khan, Iqra Shehzadi
Faculty of Engineering and Information Sciences - Papers: Part B
In current investigation, steady free convection of nanofluid has been presented in occurrence of magnetic field. Non-Darcy model was utilized to employ porous terms in momentum equations. Working fluid is H2O based nanofluid. Radiation effect has been reported for various shapes of nanoparticles. Impacts of shape factor, radiation parameter, magnetic force, buoyancy and shape impact on nanofluid treatment were demonstrated. Result demonstrated that maximum convective flow is observed for platelet shape. Darcy number produces more random patterns of isotherms.
Analysis Of Surface Roughness Evolution Of Ferritic Stainless Steel Using Crystal Plasticity Finite Element Method, Xiaoguang Ma, Jingwei Zhao, Wei Du, Xin Zhang, Zhengyi Jiang
Analysis Of Surface Roughness Evolution Of Ferritic Stainless Steel Using Crystal Plasticity Finite Element Method, Xiaoguang Ma, Jingwei Zhao, Wei Du, Xin Zhang, Zhengyi Jiang
Faculty of Engineering and Information Sciences - Papers: Part B
In order to evaluate the surface quality of ferritic stainless steel (FSS) sheets tensile deformation, a crystal plasticity (CP) model, in which the constitutive laws were incorporated with the consideration of the heterogeneous distribution of the properties of grains, was established to analyse the effect of texture, grain sizes and initial surface roughness on the surface roughness evolution of FSS sheets. The electron backscatter diffraction (EBSD) tests were performed to characterise the texture and the grains. A tensile test of the represent volume was simulated and further verified by experimental results. The numerical simulation results indicate that the surface roughness …
Comparison Of Butyric Acid Leaching Behaviors Of Zinc From Three Basic Oxygen Steelmaking Filter Cakes, Jingxiu Wang, Zhe Wang, Zhongzhi Zhang, Guangqing Zhang
Comparison Of Butyric Acid Leaching Behaviors Of Zinc From Three Basic Oxygen Steelmaking Filter Cakes, Jingxiu Wang, Zhe Wang, Zhongzhi Zhang, Guangqing Zhang
Faculty of Engineering and Information Sciences - Papers: Part B
The selective leaching of zinc from three different basic oxygen steelmaking (BOS) filter cakes by butyric acid was investigated to compare the leaching behaviors of zinc and further to establish the correlation of the zinc leaching performances and the chemical compositions. The effects of acid concentration and the acid to solid (L/S) stoichiometric ratio were studied, with different optimal leaching conditions obtained. BOS-1 showed the lowest leachability with only less than 10% of zinc removed by 0.5 M acid concentration and 90% of the L/S stoichiometric ratio in 10 h. The best zinc selectivity was achieved with BOS-2 at 51.2% …
Preparation Of Al2o3 Hollow Microsphere Via Calcining Carbon Template And Its Adsorption Application, Ying Zhang, Xi Li
Preparation Of Al2o3 Hollow Microsphere Via Calcining Carbon Template And Its Adsorption Application, Ying Zhang, Xi Li
Faculty of Engineering and Information Sciences - Papers: Part B
Carbon microsphere was synthesized from glucose via hydrothermal method, and then alumina hollow microsphere was prepared using carbon template. At reaction time of 6 h, the carbon sphere displayed uniform diameter of 800 nm. After removal of carbon core during calcination, it obtained 600 nm of γ-Al2O3 hollow sphere with shell thickness of 80 nm and surface area of 186 m2/g. For adsorption of methylene blue, material exhibited adsorption capacity of 26.5 ± 1.2 mg/g, fitting well with Langmuir isotherm. It is demonstrated that calcining carbon template was an effective and facile approach to obtain …
In Situ Characterisation Of Mns Precipitation In High Carbon Steel, Yasuhiro Tanaka, Farshid Pahlevani, Suk Chun Moon, Rian J. Dippenaar, Veena Sahajwalla
In Situ Characterisation Of Mns Precipitation In High Carbon Steel, Yasuhiro Tanaka, Farshid Pahlevani, Suk Chun Moon, Rian J. Dippenaar, Veena Sahajwalla
Faculty of Engineering and Information Sciences - Papers: Part B
Manganese sulphide (MnS) is one of the major non-metallic inclusions in steel with huge impact on steel property. In the case of high carbon steel, due to higher sulphur content and its brittleness, controlling MnS formation is one of the main issues. MnS has a complicated precipitation mechanism during solidification in liquid and solid steel and at the interface with oxide inclusions. Higher sulphur content, lower melting point and different oxide inclusions in high carbon steel will cause MnS precipitation at different stages. In this study, different stages of MnS precipitation from liquid and/or solid in high carbon steel and …
Oxidation Behaviour Of Steel During Hot Rolling By Using Tio2-Containing Water-Based Nanolubricant, Hui Wu, Chengyang Jiang, Jianqiang Zhang, Shuiquan Huang, Lianzhou Wang, Sihai Jiao, Han Huang, Zhengyi Jiang
Oxidation Behaviour Of Steel During Hot Rolling By Using Tio2-Containing Water-Based Nanolubricant, Hui Wu, Chengyang Jiang, Jianqiang Zhang, Shuiquan Huang, Lianzhou Wang, Sihai Jiao, Han Huang, Zhengyi Jiang
Faculty of Engineering and Information Sciences - Papers: Part B
The formation and performance of oxide scale on a low-alloy steel were investigated during hot rolling at 850 and 950 °C under various lubrication conditions, including benchmarks (dry condition and water) and water-based nanolubricants containing various concentrations of nano-TiO2 from 1.0 to 8.0 wt%. The results showed that the addition of nano-TiO2 particles in the lubricant significantly reduced the thickness of oxide scale and surface oxide roughness. The reduction reached the maximum when the concentration of TiO2 was 4.0 wt%. Detailed oxide phase characterisation and oxide component fraction determination revealed that hot rolling destroyed the conventional multi-layer oxide scale and …
Time Series Analysis Of Online Public Opinions In Colleges And Universities And Its Sustainability, Wei He, Yuan Fang, Reza Malekian, Zhixiong Li
Time Series Analysis Of Online Public Opinions In Colleges And Universities And Its Sustainability, Wei He, Yuan Fang, Reza Malekian, Zhixiong Li
Faculty of Engineering and Information Sciences - Papers: Part B
With the quick penetration of Internet applications, online media have become an important carrier of public opinions. The opinions and comments expressed by young college students-one of the most active netizen groups-on the Internet have turned out to be an essential part of the online public opinions in colleges and universities. However, the existing systems generally employ simple statistical methods to analyze the effect of online public opinions on the image and reputation development of colleges and universities without taking account of other factors, such as the hotness characteristics of online public opinions and semantic information. Therefore, on the basis …
A Deep Learning Model For Estimating Story Points, Morakot Choetkiertikul, Hoa K. Dam, Truyen Tran, Trang Pham, Aditya K. Ghose, Tim Menzies
A Deep Learning Model For Estimating Story Points, Morakot Choetkiertikul, Hoa K. Dam, Truyen Tran, Trang Pham, Aditya K. Ghose, Tim Menzies
Faculty of Engineering and Information Sciences - Papers: Part B
Although there has been substantial research in software analytics for effort estimation in traditional software projects, little work has been done for estimation in agile projects, especially estimating the effort required for completing user stories or issues. Story points are the most common unit of measure used for estimating the effort involved in completing a user story or resolving an issue. In this paper, we propose a prediction model for estimating story points based on a novel combination of two powerful deep learning architectures: long short-term memory and recurrent highway network. Our prediction system is end-to-end trainable from raw input …
Towards An Assessment Framework Of Reuse: A Knowledge Level Analysis Approach, Ghassan Beydoun, Achim Hoffmann, Rafael Valencia-Garcia, Jun Shen, Asifqumer Gill
Towards An Assessment Framework Of Reuse: A Knowledge Level Analysis Approach, Ghassan Beydoun, Achim Hoffmann, Rafael Valencia-Garcia, Jun Shen, Asifqumer Gill
Faculty of Engineering and Information Sciences - Papers: Part B
The process of assessing the suitability of reuse of a software component is complex. Indeed, software systems are typically developed as an assembly of existing components. The complexity of the assessment process is due to lack of clarity on how to compare the cost of adaptation of an existing component versus the cost of developing it from scratch. Indeed, often pursuit of reuse can lead to excessive rework and adaptation, or developing suites of components that often get neglected. This paper is an important step towards modelling the complex reuse assessment process. To assess the success factors that can underpin …
Dimensionality Reduction And Visualization Of Network Intrusion Detection Data, Wei Zong, Yang-Wai Chow, Willy Susilo
Dimensionality Reduction And Visualization Of Network Intrusion Detection Data, Wei Zong, Yang-Wai Chow, Willy Susilo
Faculty of Engineering and Information Sciences - Papers: Part B
Nowadays, network intrusion detection is researched extensively due to increasing global network threats. Many researchers propose to incorporate machine learning techniques in network intrusion detection systems since these techniques allow for automated intrusion detection with high accuracy. Furthermore, dimensionality reduction techniques can improve the performance of machine learning models, and as such, are widely used as a pre-processing step. Nevertheless, many researchers consider machine learning techniques as a black box because of its complex intrinsic mechanism. Visualization plays an important role in facilitating the understanding of such sophisticated techniques because visualization is able to offer intuitive meaning to the machine …
Prospects For Protecting Business Microdata When Releasing Population Totals Via A Remote Server, James O. Chipperfield, John Newman, Gwenda Thompson, Yue Ma, Yan-Xia Lin
Prospects For Protecting Business Microdata When Releasing Population Totals Via A Remote Server, James O. Chipperfield, John Newman, Gwenda Thompson, Yue Ma, Yan-Xia Lin
Faculty of Engineering and Information Sciences - Papers: Part B
Many statistical agencies face the challenge of maintaining the confidentiality of respondents while providing as much analytical value as possible from their data. Datasets relating to businesses present particular difficulties because they are likely to contain information about large enterprises that dominate industries and may be more easily identified. Agencies therefore tend to take a cautious approach to releasing business data (e.g., trusted access, remote access and synthetic data). The Australian Bureau of Statistics has developed a remote server, called TableBuilder, which has the capability to allow users to specify and request tables created from business microdata. The tables are …
Alternative Pricing Methods For Shout Call Options, Joanna M. Goard
Alternative Pricing Methods For Shout Call Options, Joanna M. Goard
Faculty of Engineering and Information Sciences - Papers: Part B
Shout call options are exotic options that give the investor the ability to 'shout' during the life of the option, thus locking in a profit and resetting the strike price to the prevailing spot price. We look at two approaches to value such options. The first approach makes use of canonical variables of the classical heat equation and results in a series solution. In the second approach an integral formulation is used, which can be more amenable to pricing when there is more than one 'shout' allowed.
Prediction Of Blast Furnace Hearth Condition: Part I - A Steady State Simulation Of Hearth Condition During Normal Operation, Xue Feng Dong, Paul Zulli
Prediction Of Blast Furnace Hearth Condition: Part I - A Steady State Simulation Of Hearth Condition During Normal Operation, Xue Feng Dong, Paul Zulli
Faculty of Engineering and Information Sciences - Papers: Part B
A coupled flow and refractory model (CFRM) has been upgraded to assist engineers in understanding and interpreting the measured refractory temperature distributions in the hearth of a blast furnace hearth. CFRM describes the liquid flow distribution and heat transfer in the hearth, allowing various scenarios to be simulated involving coke bed properties, extent of hearth refractory wear, etc. The model was validated through comparison between measured refractory data and corresponding model predictions for the early stages of the current BlueScope's No. 5 Blast Furnace campaign. For the current campaign, the actual range in measured pad temperature fluctuation over a short …
Prediction Of Blast Furnace Hearth Condition: Part Ii - A Transient State Simulation Of Hearth Condition During Blast Furnace Shutdown, Xue Feng Dong, Paul Zulli, Mark Biasutti
Prediction Of Blast Furnace Hearth Condition: Part Ii - A Transient State Simulation Of Hearth Condition During Blast Furnace Shutdown, Xue Feng Dong, Paul Zulli, Mark Biasutti
Faculty of Engineering and Information Sciences - Papers: Part B
The extent of hearth cooling is critically important in determining the feasible duration of an extended blast furnace maintenance shutdown. Based on a fixed domain method, a transient numerical model has been developed which considers the effect of solidification enthalpy of liquid iron in a coke-free bath, enabling the progress of hearth cooling to be monitored. The model was initially verified by comparing calculations with actual refractory temperatures during shutdowns of shorter duration (typically 1-2 days) at BlueScope's No. 5 Blast Furnace. It was then applied to estimate the hearth condition during an extended shutdown period (typically, 5-6 days). The …
Defect Detection For Patterned Fabric Images Based On Ghog And Low-Rank Decomposition, Chunlei Li, Guangshuai Gao, Zhoufeng Liu, Di Huang, Jiangtao Xi
Defect Detection For Patterned Fabric Images Based On Ghog And Low-Rank Decomposition, Chunlei Li, Guangshuai Gao, Zhoufeng Liu, Di Huang, Jiangtao Xi
Faculty of Engineering and Information Sciences - Papers: Part B
In contrast to defect-free fabric images with macro-homogeneous textures and regular patterns, the fabric images with the defect are characterized by the defect regions that are salient and sparse among the redundant background. Therefore, as an effective tool for separating an image into a redundant part (the background) and sparse part (the defect), the low-rank decomposition model provides an ideal solution for patterned fabric defect detection. In this paper, a novel patterned method for fabric defect detection is proposed based on a novel texture descriptor and the low-rank decomposition model. First, an efficient second-order orientation-aware descriptor, denoted as GHOG, is …
Torque Response Characteristics Of A Controllable Electromagnetic Damper For Seat Suspension Vibration Control, Pengfei Liu, Xiangjun Xia, Nong Zhang, Donghong Ning, Minyi Zheng
Torque Response Characteristics Of A Controllable Electromagnetic Damper For Seat Suspension Vibration Control, Pengfei Liu, Xiangjun Xia, Nong Zhang, Donghong Ning, Minyi Zheng
Faculty of Engineering and Information Sciences - Papers: Part B
In this paper, a novel resistance switching method is proposed to control an electromagnetic damper (EMD) system of a vehicle seat suspension, and torque response characteristics of the EMD system are investigated in detail. First, the relationship between electromagnetic torque and circuit resistance of the EMD system is established. The basic parameters of the EMD system are identified by least squares fitting, and the resistance distribution is optimized to meet the demand damping of seat suspension. Second, the electromagnetic torque response time and the continuously dynamic torque tracking performance of the EMD system are investigated experimentally. The time required for …
Fault Diagnosis Of Reciprocating Compressor Using Component Estimating Empirical Mode Decomposition And De-Dimension Template With Double-Loop Correction Algorithm, Hongyi Wang, Feng Dong, Xinxiu Zhou, Hongyu Wang, Xinjun Zhu, Limei Song, Qinghua Guo
Fault Diagnosis Of Reciprocating Compressor Using Component Estimating Empirical Mode Decomposition And De-Dimension Template With Double-Loop Correction Algorithm, Hongyi Wang, Feng Dong, Xinxiu Zhou, Hongyu Wang, Xinjun Zhu, Limei Song, Qinghua Guo
Faculty of Engineering and Information Sciences - Papers: Part B
This paper presents an approach to implement multi-parameter (i.e., pressure, temperature, vibration, current, and liquid level) signals for fault diagnosis of the reciprocating compressor (RC). Due to the complexity of structure and motion of such compressor, the acquired signals involve transient impacts and noises. This causes the useful information to be corrupted and makes it difficult to diagnose the fault patterns accurately. A component estimating empirical mode decomposition (CEEMD) method is proposed to remove the random noise and improve data quality. Furthermore, a new template matching algorithm called de-dimension template with double-loop correction (DDT-DLC) is applied to diagnose the fault …
The Study Of The Directional Sensitivity Of Fiber Bragg Gratings For Acoustic Emission Measurements, Sagar Jinachandran, Abheek Basu, Hui Jun Li, Jiangtao Xi, Gangadhara B. Prusty, Ginu Rajan
The Study Of The Directional Sensitivity Of Fiber Bragg Gratings For Acoustic Emission Measurements, Sagar Jinachandran, Abheek Basu, Hui Jun Li, Jiangtao Xi, Gangadhara B. Prusty, Ginu Rajan
Faculty of Engineering and Information Sciences - Papers: Part B
Structural health monitoring (SHM) of engineering structures plays a crucial role in ensuring their safety and integrity. Acoustic emissions (AE) can be one of the several ways to monitor the structural health. Fiber Bragg grating (FBG)-based AE measurement technique is emerging as a solution to assess cracks in structures remotely and has advantages of being less bulky and having low noise, high bandwidth and ease of implementation. This paper presents a study on the impact of AE signals on FBGs attached to a substrate, focusing on the directional sensitivity using different configurations. For ease of installation, the FBG sensors are …
Metamorphic Testing: Testing The Untestable, Sergio Segura, Dave Towey, Zhi Q. Zhou, Tsong Yueh Chen
Metamorphic Testing: Testing The Untestable, Sergio Segura, Dave Towey, Zhi Q. Zhou, Tsong Yueh Chen
Faculty of Engineering and Information Sciences - Papers: Part B
What if we could know that a program is buggy, even if we could not tell whether or not its observed output is correct? This is one of the key strengths of metamorphic testing, a technique where failures are not revealed by checking an individual concrete output, but by checking the relations among the inputs and outputs of multiple executions of the program under test. Two decades after its introduction, metamorphic testing has become a fully-fledged testing technique with successful applications in multiple domains, including online search engines, autonomous machinery, compilers, Web APIs, and deep learning programs, among others. This …
Mechanical Properties Of Steel, Glass, And Hybrid Fiber Reinforced Reactive Powder Concrete, Atheer Hilal Mahdi Al - Gburi, M Neaz Sheikh, Muhammad N. S Hadi
Mechanical Properties Of Steel, Glass, And Hybrid Fiber Reinforced Reactive Powder Concrete, Atheer Hilal Mahdi Al - Gburi, M Neaz Sheikh, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part B
This study examines the properties of fiber-reinforced reactive powder concrete (FR-RPC). Steel fibers, glass fibers, and steel-glass hybrid fibers were used to prepare the FR-RPC. The non-fibrous reactive powder concrete (NF-RPC) was prepared as a reference mix. The proportion of fibers by volume for all FR-RPC mixes was 1.5%. Steel fibers of 13 mm length and 0.2 mm diameter were used to prepare the steel fiber-reinforced RPC (SFR-RPC). Glass fibers of 13 mm length and 1.3 mm diameter were used to prepare the glass fiber-reinforced RPC (GFR-RPC). The hybrid fiber-reinforced RPC (HFR-RPC) was prepared by mixing 0.9% steel fibers and …
Mining Phosphorus From Anaerobically Treated Dairy Manure By Forward Osmosis Membrane, Biplob K. Pramanik, Faisal I. Hai, Ashley Ansari, Felicity Roddick
Mining Phosphorus From Anaerobically Treated Dairy Manure By Forward Osmosis Membrane, Biplob K. Pramanik, Faisal I. Hai, Ashley Ansari, Felicity Roddick
Faculty of Engineering and Information Sciences - Papers: Part B
We investigated the effect of draw solution type on the forward osmosis (FO) performance for enriching nutrients from anaerobically treated dairy manure (ATDM) followed by chemical precipitation for phosphorus recovery as struvite crystal. The FO membrane significantly rejected COD (>97%) and phosphate (>98%) whereas there was only 70%-73% and 73%-76% rejection of ammonia-nitrogen and total nitrogen, respectively. The draw solution type had little impact on the retention of the aforementioned wastewater constituents by the FO membrane. At 60% water recovery, a water flux decline of 82%-96% was observed due to increasing contaminant concentration in the concentrated feed solution. …
Improved Performance Of Ballasted Tracks At Transition Zones: A Review Of Experimental And Modelling Approaches, Buddhima Indraratna, Muhammad Babar Sajjad, Ngoc Trung Ngo, A Correia, Richard B. Kelly
Improved Performance Of Ballasted Tracks At Transition Zones: A Review Of Experimental And Modelling Approaches, Buddhima Indraratna, Muhammad Babar Sajjad, Ngoc Trung Ngo, A Correia, Richard B. Kelly
Faculty of Engineering and Information Sciences - Papers: Part B
Track transitionssuch as bridge approaches, road crossings and shifts from slab track to ballasted track are common locations wheretrack degradation accelerates due to dynamic and high impact forces; as a consequence there is higher differential settlement. Thesetypes of discontinuities cause an abrupt change in the structural responseof the track due mainly tovariations in stiffness and track damping. Track transitionzones are prone to an accelerated deterioration of track material and geometrythat leads to increased maintenance costs.Track deteriorationalso leads to vehicle degradation due to enhanced acceleration, low frequency oscillation, and high frequency vibrations. While ballastdeterioration is amajor factor affecting thestability and longevity …
Experimental And Numerical Studies Of Square Concrete-Filled Double Steel Tubular Short Columns Under Eccentric Loading, Mizen Ahmed, Qing Quan Liang, Vipulkumar I. Patel, Muhammad N. S Hadi
Experimental And Numerical Studies Of Square Concrete-Filled Double Steel Tubular Short Columns Under Eccentric Loading, Mizen Ahmed, Qing Quan Liang, Vipulkumar I. Patel, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part B
Square concrete-filled double steel tubular (CFDST) beam-columns consisting of an internal circular steel tube have increasingly been utilized in composite building structures because of their high structural performance. This paper describes experimental and numerical studies on the structural responses of square thin-walled CFDST columns loaded eccentrically. Tests on twenty short square CFDST columns were undertaken that included sixteen columns under eccentric loading and four columns under concentric loading. The parameters examined in the experiments included the cross-sectional dimensions, the width-to-thickness ratios of outer and internal tubes and loading eccentricity. The measured ultimate strengths, load-shortening responses, load-lateral displacement curves, stress-strain curves …
Anchorage Mechanical Characteristics Of Newly Designed Rebar Bolt And Optimization Of Its Support Scheme, Bingjie Huo, Xuedong Jin, Chen Cao
Anchorage Mechanical Characteristics Of Newly Designed Rebar Bolt And Optimization Of Its Support Scheme, Bingjie Huo, Xuedong Jin, Chen Cao
Faculty of Engineering and Information Sciences - Papers: Part B
In Shendong coalfield, large cross-section underground gateways are often excavated for large machine transportation. It causes large deformation of the surrounding rock and the phenomenon of rib spalling. In this study, taking Xiaobaodang coal mine as the engineering background, a newly designed rebar bolt for large deformational roadway support was introduced to control large deformation. Results that the peak anchoring force of the new bolt increased by 20-30%, the total energy absorption of the system is increased by 35-50%, the post-peak displacement increases by 4.5mm comparing with traditional left-spiral non-longitudinal rebar bolt. The support schemes were analyzed by using FLAC3D, …
Numerical Study Of Circular Double-Skin Concrete-Filled Aluminum Tubular Stub Columns, Vipulkumar I. Patel, Qing Quan Liang, Muhammad N. S Hadi
Numerical Study Of Circular Double-Skin Concrete-Filled Aluminum Tubular Stub Columns, Vipulkumar I. Patel, Qing Quan Liang, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part B
The sandwiched concrete in a circular double-skin concrete-filled aluminum tubular (DCFAT) column is subjected to the lateral confinement from inner and outer aluminum tubes. The effects of double-skin confinement have not been considered in the existing numerical models for the analysis of DCFAT stub columns. This paper describes a numerical model for the simulation of concentrically compressed circular DCFAT short columns. The numerical model is developed using the fiber element methodology. A new expression for determining the lateral confining pressures on the sandwiched concrete in circular DCFAT stub columns is proposed based on experimental results and incorporated in the computational …
Leucaena Shows Potential In Northern Inland New South Wales, Australia, Carol Harris, S Boschma, Mark Brennan, Lauren Borg, Steven Harden, Brian R. Cullis
Leucaena Shows Potential In Northern Inland New South Wales, Australia, Carol Harris, S Boschma, Mark Brennan, Lauren Borg, Steven Harden, Brian R. Cullis
Faculty of Engineering and Information Sciences - Papers: Part B
A study was conducted during 2013-2017 to evaluate the potential of 5 cultivars/experimental lines of leucaena (Leucaena leucocephala) at 2 sites in Northern Inland NSW. In this frost-prone, summer-dominant rainfall region, all cultivars/lines established well and survival was > 70% at Bingara and > 95% at Manilla. Cultivars Wondergraze and Cunningham were the most productive, producing up to approximately 2.4 t DM/ha and 1.9 t DM/ha per growing season at Bingara and Manilla, respectively. Tropical grass establishment in the alleys was poor with plant productivity inversely related to leucaena productivity. Although this study has confirmed the persistence and productive potential of leucaena, …
Optimisation Framework For Operation Of Battery Storage Within Solar Rich Microgrids, Herath Pathiranage Asanga Priyankara Jayawardana, Ashish P. Agalgaonkar, Duane A. Robinson, Massimo Fiorentini
Optimisation Framework For Operation Of Battery Storage Within Solar Rich Microgrids, Herath Pathiranage Asanga Priyankara Jayawardana, Ashish P. Agalgaonkar, Duane A. Robinson, Massimo Fiorentini
Faculty of Engineering and Information Sciences - Papers: Part B
The growing trend of distributed generation, such as solar photovoltaic (PV) systems and small scale wind turbines have promoted the development of microgrids which are highly dependent on renewable energy. Due to the intermittent nature of renewable energy, these microgrids are generally equipped with energy storage, such as batteries. Batteries are generally operated using fixed control methods, often deviating from the optimal operation. This aspect has created an opportunity to gain improved outcomes for microgrid owners and operators. This research study describes a pathway for designing an optimisation framework which can be used to optimise the charge and discharge operation …
A Novel Multi-Agent-Based Collaborative Virtual Manufacturing Environment Integrated With Edge Computing Technique, Xiaohui Zhang, Shufeng Tang, Xinhua Liu, Reza Malekian, Zhixiong Li
A Novel Multi-Agent-Based Collaborative Virtual Manufacturing Environment Integrated With Edge Computing Technique, Xiaohui Zhang, Shufeng Tang, Xinhua Liu, Reza Malekian, Zhixiong Li
Faculty of Engineering and Information Sciences - Papers: Part B
This paper proposes a multi-agent-based collaborative virtual manufacturing environment (VME) to save energy consumption and improve efficiency in the manufacturing process. In order to achieve the high autonomy of the manufacturing system, a multi-agent system (MAS) is designed to build a collaborative VME. In this new VME environment, edge computing is embedded to strengthen the cyber resource utilization and system economy. Moreover, an efficient communication channel between networks is proposed. The subsequent cooperation and collaboration protocols among agents are designed to ensure flexible and process-oriented operations. Furthermore, the fuzzy resolution algorithm is employed to resolve the competition conflicts among function-similar …
Experimental Investigations On The Behavior Of Gfrp Bar Reinforced Hsc And Uhsc Beams Under Static And Impact Loading, M W. Goldston, Alex M. Remennikov, Zein Saleh, M Neaz Sheikh
Experimental Investigations On The Behavior Of Gfrp Bar Reinforced Hsc And Uhsc Beams Under Static And Impact Loading, M W. Goldston, Alex M. Remennikov, Zein Saleh, M Neaz Sheikh
Faculty of Engineering and Information Sciences - Papers: Part B
This paper presents an experimental investigation into the behavior of Glass Fiber-Reinforced Polymer (GFRP) bar reinforced high strength concrete and ultra-high strength concrete beams. In total, twelve GFRP bar reinforced concrete beams (GFRP-RC beams) were constructed and tested. Six GFRP-RC beams were tested under static loading. Higher strength concrete was found to influence the overall behavior of GFRP-RC beams under static loading in terms of load carrying capacity, deflection, and post-cracking bending stiffness. Six GFRP-RC beams were tested under impact loading at various levels of impact energy. The GFRP-RC beams displayed a shift in the failure mode (from shear failure …
Natural Sd-Rcca Secure Public-Key Encryptions From Hybrid Paradigms, Yuan Chen, Qingkuan Dong, Yannan Li, Qiqi Lai, Zhedong Wang
Natural Sd-Rcca Secure Public-Key Encryptions From Hybrid Paradigms, Yuan Chen, Qingkuan Dong, Yannan Li, Qiqi Lai, Zhedong Wang
Faculty of Engineering and Information Sciences - Papers: Part B
The existence of natural public-key encryption (PKE) schemes satisfying secretly detectable replayable CCA (sd-RCCA) security is left as open. By introducing probabilistic message authentication codes (MACs) into popular KEM plus DEM paradigms, several instances of such schemes are presented in this paper. It is known that the encrypt-then-authenticate paradigm gives an RCCA secure DEM when the underlying MAC is regular (but not strong) secure, where forgeries for old messages might be possible. By further requiring that the validity of such forgeries can be verified only secretly, sd-RCCA secure DEMs is obtained. Combining such DEMs with CCA secure KEMs gives sd-RCCA …