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Full-Text Articles in Social and Behavioral Sciences
A Forward Osmosis-Membrane Distillation Hybrid Process For Direct Sewer Mining: System Performance And Limitations, Ming Xie, Long D. Nghiem, William E. Price, Menachem Elimelech
A Forward Osmosis-Membrane Distillation Hybrid Process For Direct Sewer Mining: System Performance And Limitations, Ming Xie, Long D. Nghiem, William E. Price, Menachem Elimelech
Faculty of Engineering and Information Sciences - Papers: Part A
This study demonstrates the robustness and treatment capacity of a forward osmosis (FO)-membrane distillation (MD) hybrid system for small-scale decentralized sewer mining. A stable water flux was realized using a laboratory-scale FO-MD hybrid system operating continuously with raw sewage as the feed at water recovery up to 80%. The hybrid system also showed an excellent capacity for the removal of trace organic contaminants (TrOCs), with removal rates ranging from 91 to 98%. The results suggest that TrOC transport through the FO membrane is governed by "solute-membrane" interaction, whereas that through the MD membrane is strongly correlated to TrOC volatility. Concentrations …
Process Design Strategies For Producing Heavy Section Steel With Improved Quality, Jingwei Zhao, Zhengyi Jiang, Dongbin Wei, Chong Soo Lee
Process Design Strategies For Producing Heavy Section Steel With Improved Quality, Jingwei Zhao, Zhengyi Jiang, Dongbin Wei, Chong Soo Lee
Faculty of Engineering and Information Sciences - Papers: Part A
Uniformity of microstructure and mechanical properties is required for the heavy section steel. In the present work, a heavy section wind tower flange was manufactured by controlled ring-rolling. Post-rolling heat treatment was employed to optimize the microstructure and mechanical properties. The chemical composition, microstructure and mechanical properties in different zones of the flange were investigated. The results showed that the chemical composition and microstructure were uniformly distributed in the flange. The tensile strength showed similar values in different sampling locations. The strain and impact energies of specimens prepared along the longitudinal direction were higher than that prepared along both the …
A Literature Review On Business Process Management, Business Process Reengineering, And Business Process Innovation, Abhijith Anand, Samuel Fosso Wamba, Denis Gnanzou
A Literature Review On Business Process Management, Business Process Reengineering, And Business Process Innovation, Abhijith Anand, Samuel Fosso Wamba, Denis Gnanzou
Faculty of Engineering and Information Sciences - Papers: Part A
Business process management (BPM), business process reengineering (BPR), and business process innovation (BPI) have been the primary strategies adopted by several organizations to manage their business successfully along with IT. In the last few years, the concept of BPM, BPR, and BPI has been a hot topic among the IS community, which is evident in the degree of literatures devoted to it. Due to the dynamic nature of this research area, this paper aims to add knowledge to the existing ones by answering (1) what is the current level of development on BPM, BPR, and BPI within AIS basket of …
Effect Of Gallium Doping And Ball Milling Process On The Thermoelectric Performance Of N-Type Zno, Priyanka Jood, Germanas Peleckis, Xiaolin Wang, S X. Dou
Effect Of Gallium Doping And Ball Milling Process On The Thermoelectric Performance Of N-Type Zno, Priyanka Jood, Germanas Peleckis, Xiaolin Wang, S X. Dou
Faculty of Engineering and Information Sciences - Papers: Part A
We report a systematic investigation of the thermoelectric properties of n-type Ga-doped ZnO synthesized using different ball milling conditions. Samples fabricated by the high-energy ball milling resulted in a highly dense layered structure with randomly distributed voids. These samples measured the lowest room temperature thermal conductivity, i.e., 27 W/mK due to increased phonon scattering. Furthermore, the Ga:ZnO system showed a metal–semiconductor transition above 300 K with transition temperature decreasing with increasing doping level. Measurement of the activation energy revealed the presence of one donor level around 3.9–7.8 meV and a deeper donor level around 15.4–18.1 meV below the conduction band …
Distortion Behavior Of A Heavy Hydro Turbine Blade Casting During Forced Air Cooling In Normalizing Treatment Process, Hailiang Yu, Jinwu Kang, T J. Wang, J A. Ma, Y Y. Hu, Tianyou Huang, S B. Wang, Y Wu, C C. Zhang, Yan-Tao Dai, P Li
Distortion Behavior Of A Heavy Hydro Turbine Blade Casting During Forced Air Cooling In Normalizing Treatment Process, Hailiang Yu, Jinwu Kang, T J. Wang, J A. Ma, Y Y. Hu, Tianyou Huang, S B. Wang, Y Wu, C C. Zhang, Yan-Tao Dai, P Li
Faculty of Engineering and Information Sciences - Papers: Part A
Distortion behavior of blade castings in heat treatment process determines their geometrical accuracy, and improper control of it may result in additional repair, shape righting, or even rejection. This article presents a novel approach for discovering the distortion behavior of heavy blade castings during heat treatment process in production. Real-time measurements of distortion and temperature field of a heavy hydro turbine blade casting weighted 17 ton during forced air cooling in normalizing treatment process were carried out by using deformation measurement instruments and an infrared thermal imaging camera. The distortion processes of the typical locations of blade and the temperature …
Understanding The Role Of Moisture In The Self-Heating Process Of Compost Piles, Thiansiri Luangwilai, Harvinder S. Sidhu, Mark I. Nelson
Understanding The Role Of Moisture In The Self-Heating Process Of Compost Piles, Thiansiri Luangwilai, Harvinder S. Sidhu, Mark I. Nelson
Faculty of Engineering and Information Sciences - Papers: Part A
This paper considers the self-heating process which occurs in a compost pile using one-dimensional spatially-dependent models and incorporating terms that account for self-heating due to both biological and oxidation mechanisms. As the moisture content in a compost pile is a crucial factor in its degradation process, we utilise a model which incorporates four mass-balance equations, namely, energy, oxygen, vapour and liquid water concentrations, to investigate the behaviour of compost piles when moisture content is present. Analyses of different initial water contents within a compost pile, different ambient relative humidities and different amounts of water added to the pile by rainstorms …
An Ontology Development Methodology To Integrate Existing Ontologies In An Ontology Development Process, Nelson K. Y Leung, Sim Kim Lau, Nicole Tsang
An Ontology Development Methodology To Integrate Existing Ontologies In An Ontology Development Process, Nelson K. Y Leung, Sim Kim Lau, Nicole Tsang
Faculty of Engineering and Information Sciences - Papers: Part A
Ontology is defmed as an explicit specification of a conceptualization while a conceptualization is an abstract, simplified view of the world that we wish to represent for some purpose. To build high quality ontologies, developers are required to choose and follow a suitable ontology development methodology in which containing a series of steps, activities and guidelines that are put together in an organized and systematic manner. Literatures show that building ontologies by reusing existing ontologies is more cost effective than building from scratch. However, majority of the methodologies only provide a very limited discussion about how to perform integration or …
Investigation Into Feasibility Of Hybrid Laser-Gmaw Process For Welding High Strength Quenched And Tempered Steel, Lenka Kuzmikova, Nathan Larkin, Zengxi Pan, Mark Callaghan, Huijun Li, John Norrish
Investigation Into Feasibility Of Hybrid Laser-Gmaw Process For Welding High Strength Quenched And Tempered Steel, Lenka Kuzmikova, Nathan Larkin, Zengxi Pan, Mark Callaghan, Huijun Li, John Norrish
Faculty of Engineering and Information Sciences - Papers: Part A
In this study, the feasibility of hybrid laser-gas metal arc welding process for replacement of conventional flux-cored arc welding procedure for welding high strength quenched and tempered steel was investigated. Experimental work focused on optimisation of process parameters to produce joint with desired properties. Hardness of the weld heat affected zone produced by both processes has been measured. Productivity and cost effectiveness of both processes were compared. It was concluded that hybrid laser-gas metal arc welding process is suitable for welding high strength quenched and tempered steel.
A Novel Integrated Model To Measure Supplier Performance Considering Qualitative And Quantitative Criteria Used In The Supplier Selection Process, Alptekin Ulutas, Senevi Kiridena, Peter Gibson, Nagesh Shukla
A Novel Integrated Model To Measure Supplier Performance Considering Qualitative And Quantitative Criteria Used In The Supplier Selection Process, Alptekin Ulutas, Senevi Kiridena, Peter Gibson, Nagesh Shukla
Faculty of Engineering and Information Sciences - Papers: Part A
Supplier evaluation has become a significant topic over the past few decades, as companies have become more outsourced oriented. However, previous research on this topic has not paid adequate attention to the limitations associated with the availability of accurate and reliable data relating to the performance of potential suppliers. In an attempt to address this issue, this paper proposes a novel supplier evaluation model that can handle imprecise quantitative and qualitative data. Additionally, Decision Maker's judgement regarding both qualitative and quantitative criteria are incorporated into this model so that a more comprehensive and realistic assessment of supplier performance can be …
Thermodynamic Analysis Of A High-Yield Biochemical Process For Biofuel Production, M Imroz Sohel, Michael W. Jack
Thermodynamic Analysis Of A High-Yield Biochemical Process For Biofuel Production, M Imroz Sohel, Michael W. Jack
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents a thermodynamic analysis of a high-yield biochemical process for biofuel production from lignocelluosic biomass based on a previously proposed process. Unlike the standard biochemical process, which ferments sugar intermediates to ethanol, the process under consideration converts sugars to acetic acid which is esterified and hydrogenated to produce ethanol. This process has a significantly higher yield and produces no carbon dioxide. However, we find that the thermodynamic efficiency of the process is not increased in proportion to the yield gain. An additional survey of various biofuel production processes showed no direct correlation between yield and thermodynamic efficiency. This …
Development Of A Dc-Lsnd Welding Process For Gmaw On Dh-36 Steel, Raymond Holder, Nathan Larkin, Huijun Li, Lenka Kuzmikova, Zengxi Pan, John Norrish
Development Of A Dc-Lsnd Welding Process For Gmaw On Dh-36 Steel, Raymond Holder, Nathan Larkin, Huijun Li, Lenka Kuzmikova, Zengxi Pan, John Norrish
Faculty of Engineering and Information Sciences - Papers: Part A
Weld induced distortion correction is a major cost within the shipbuilding industry. This paper investigates the use of an active cooling process known as Dynamically Controlled - Low Stress No Distortion (DC-LSND) Welding on DH-36 steel. Thermal profiles are obtained and distortion measurements are also achieved. Results show that the application of a localised cryogenic cooling source trailing the welding arc can significantly reduce weld induced distortion using the GMAW process. The effect of forced cooling on the weld microstructure is also observed.
Where To Place Product Reviews? An Information Search Process Perspective, Mengxiang Li, Chuan-Hoo Tan, Kwok-Kee Wei, Kanliang Wang
Where To Place Product Reviews? An Information Search Process Perspective, Mengxiang Li, Chuan-Hoo Tan, Kwok-Kee Wei, Kanliang Wang
Faculty of Engineering and Information Sciences - Papers: Part A
Online product reviews could be presented as expert reviews and user reviews. However, a fundamental question that is not fully understood, and which this study addresses, is: Where should product reviews be displayed so as to positively affect a consumer's decision-making performance? We focus on evaluating the impact of the placements and the source of reviews (i.e., the pre-screening or post-screening display of experts' or users' comments) on consumer behavior. Building on the underpinnings of Kuhlthau's model of information search process, we propose that the Expert-User product review provision (i.e., placing the expert reviews before the screening stage and the …
Influence Of Dog-Bone Apex On Shape During Slab Horizontal Rolling Process, Hai-Liang Yu, Xiang-Hua Liu, Chang-Sheng Li, Guo-Dong Wang
Influence Of Dog-Bone Apex On Shape During Slab Horizontal Rolling Process, Hai-Liang Yu, Xiang-Hua Liu, Chang-Sheng Li, Guo-Dong Wang
Faculty of Engineering and Information Sciences - Papers: Part A
The deformation of slab with dog-bone shape during the horizontal rolling process was simulated using FEM, and the influences of apical dislocation of dog-bone on the slab spread as well as the minimum crop end loss and the lost width at slab head and tail were analyzed. The results show that with the increase in the apical dislocation of dog-bone (LA), the slab spread and the minimum crop end loss at slab head and tail decrease, while the lost width at slab head and tail increases. Meanwhile, the relationships of S/LA-LA, LH/LA-LA, WH/LA-LA, LT/LA-LA, and WT/LA-LA were obtained. © 2007 …
Editorial: Special Issue Contributed From Chemeca 2006-Australasian Process Modelling And Control Selected Papers, Mark Nelson, Brent Young
Editorial: Special Issue Contributed From Chemeca 2006-Australasian Process Modelling And Control Selected Papers, Mark Nelson, Brent Young
Faculty of Engineering and Information Sciences - Papers: Part A
The papers in this issue of Chemical Product and Process Modelling are substantially those that arose from special sessions on ``process simulation and control" (organised by Brent R. Young) and ``mathematical modeling" (organised by Mark I. Nelson) at the 34th Australasian Chemical Engineering Conference (held between 17-20th September 2006, in Auckland, New Zealand). The papers in this special issue are available at: http://www.bepress.com/cppm/vol2/iss2. The papers featured in this issue have been revised and extended from CHEMECA and re-reviewed before publication here.All the papers in this issue use mathematics. However, this special issue only features a small number of the presentations …
Behavior Of Transversal Crack On Slab Corner During V-H Rolling Process, Hai-Liang Yu, Xiang-Hua Liu, Chang-Sheng Li, Y Kusaba
Behavior Of Transversal Crack On Slab Corner During V-H Rolling Process, Hai-Liang Yu, Xiang-Hua Liu, Chang-Sheng Li, Y Kusaba
Faculty of Engineering and Information Sciences - Papers: Part A
The behavior of transversal cracks on the surface of the slab corner during vertical and horizontal (V-H) rolling process with flat vertical roll and groove vertical roll was simulated by explicit dynamic finite element method. The closure and growth of crack and the contact pressure on surfaces of the crack in contacting zone between slab and roll during rolling process were analyzed. The results showed that during vertical rolling process, when the groove vertical roll is used, the maximum contact pressure on surfaces of the crack is 115 MPa, and the closure of crack is stable; when the flat vertical …
Developments In Blast Furnace Process Control At Port Kembla Based On Process Fundamentals, Robert Nightingale, Rian Dippenaar, Wei-Kao Lu
Developments In Blast Furnace Process Control At Port Kembla Based On Process Fundamentals, Robert Nightingale, Rian Dippenaar, Wei-Kao Lu
Faculty of Engineering and Information Sciences - Papers: Part A
This article is based on a presentation made in the "Geoffrey Belton Memorial Symposium," held in January 2000, in Sydney, Australia, under the joint sponsorship of ISS and TMS.
The Impact Of Ios-Enabled Business Process Change On Business Outcomes: Transformation Of The Value Chain Of Japan Airlines, Akemi Chatfield, Niels Bjorn-Andersen
The Impact Of Ios-Enabled Business Process Change On Business Outcomes: Transformation Of The Value Chain Of Japan Airlines, Akemi Chatfield, Niels Bjorn-Andersen
Faculty of Engineering and Information Sciences - Papers: Part A
We present a framework for evaluating the impact of IT-enabled radical process change on business outcomes at Japan Airlines. The framework presents a systemic view of factors that are shown to impact the firm's business outcomes. The framework identifies salient global environmental factors and business challenges the firm faces, strategic responses it makes, and management methodologies and strategic IT systems adopted to enable the firm's changes in business processes. We then discuss the radical transformation of the traditional keiretsu-based value chain at Japan Airlines, the world's third largest airline company. We apply the framework to evaluate the impact of the …