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Comparison Of The Removal Of Hydrophobic Trace Organic Contaminants By Forward Osmosis And Reverse Osmosis, Ming Xie, Long D. Nghiem, William E. Price, Menachem Elimelech
Comparison Of The Removal Of Hydrophobic Trace Organic Contaminants By Forward Osmosis And Reverse Osmosis, Ming Xie, Long D. Nghiem, William E. Price, Menachem Elimelech
Faculty of Engineering - Papers (Archive)
We compared the rejection behaviours of three hydrophobic trace organic contaminants, bisphenol A, triclosan and diclofenac, in forward osmosis (FO) and reverse osmosis (RO). Using erythritol, xylose and glucose as inert reference organic solutes and the membrane pore transport model, the mean effective pore size of a commercial cellulose-based FO membrane was estimated to be 0.74 nm. When NaCl was used as the draw solute, at the same water permeate flux of 5.4 L/m2 h (or 1.5 mm/s), the adsorption of all three compounds to the membrane in the FO mode was consistently lower than that in the RO mode. …
Comparison Between Experimental And Predicted Conveyor Belt Trajectories, David B. Hastie, Peter W. Wypych
Comparison Between Experimental And Predicted Conveyor Belt Trajectories, David B. Hastie, Peter W. Wypych
Faculty of Engineering - Papers (Archive)
Belt conveyors are commonly used in a multitude of industries to transport material from one location to another. Belt conveyors can be configured in many ways, from a single run which might form a stockpile, to many interconnected belt conveyors, necessitating the use of transfers to successfully deliver material through the system. Whichever method applies, the way in which material leaves the head of a conveyor will dictate the path the flow of material takes to the next step in the process. Many installations run successfully with systems that have been in operation for many years, however not all have …
Comparison Of Nanodosimetric Parameters Of Track Structure Calculated By The Monte Carlo Codes Geant4-Dna And Ptra, P Lazarakis, M U. Bug, E Gargioni, S Guatelli, H Rabus, Anatoly B. Rosenfeld
Comparison Of Nanodosimetric Parameters Of Track Structure Calculated By The Monte Carlo Codes Geant4-Dna And Ptra, P Lazarakis, M U. Bug, E Gargioni, S Guatelli, H Rabus, Anatoly B. Rosenfeld
Faculty of Engineering - Papers (Archive)
The concept of nanodosimetry is based on the assumption that initial damage to cells is related to the number of ionizations (the ionization cluster size) directly produced by single particles within, or in the close vicinity of, short segments of DNA. The ionization cluster-size distribution and other nanodosimetric quantities, however, are not directly measurable in biological targets and our current knowledge is mostly based on numerical simulations of particle tracks in water, calculating track structure parameters for nanometric target volumes. The assessment of nanodosimetric quantities derived from particle-track calculations using different Monte Carlo codes plays, therefore, an important role for …
Comparison Of Epson Scanner Quality For Radiochromic Film Evaluation, Hani Alnawaf, Peter K. N Yu, Martin Butson
Comparison Of Epson Scanner Quality For Radiochromic Film Evaluation, Hani Alnawaf, Peter K. N Yu, Martin Butson
Faculty of Engineering - Papers (Archive)
Epson Desktop scanners have been quoted as devices which match the characteristics required for the evaluation of radiation dose exposure by radiochromic films. Specifically, models such as the 10000XL have been used successfully for image analysis and are recommended by ISP for dosimetry purposes. This note investigates and compares the scanner characteristics of three Epson desktop scanner models including the Epson 10000XL, V700, and V330. Both of the latter are substantially cheaper models capable of A4 scanning. As the price variation between the V330 and the 10000XL is 20-fold (based on Australian recommended retail price), cost savings by using the …
Liquefaction And Failure Mechanisms Of Sandy Sloped Ground During Earthquakes: A Comparison Between Laboratory And Field Observations, Gabriele Chiaro, Junichi Koseki
Liquefaction And Failure Mechanisms Of Sandy Sloped Ground During Earthquakes: A Comparison Between Laboratory And Field Observations, Gabriele Chiaro, Junichi Koseki
Faculty of Engineering - Papers (Archive)
Prediction of ground failure involving earthquake-induced liquefaction of sloped sandy deposits is a major challenge in geomechanics due to the great number of factors that need to be considered such as initial static shear stress, cyclic shear stress, density state, confining pressure, loading conditions etc. This paper briefly describes the triggers (stress conditions) and the consequences (deformation behaviour) for three distinct failure modes that can be produced by an earthquake on sloped ground consisting of loose saturated sand. Such failure mechanisms were observed in the laboratory by performing undrained monotonic and cyclic torsional simple shear tests on Toyoura sand specimens. …
Performance Comparison Between An Mrf Damper And An Mre Isolator Incorporated With A Building Structure, Yang Zhou, Weihua Li, Muhammad N. S Hadi
Performance Comparison Between An Mrf Damper And An Mre Isolator Incorporated With A Building Structure, Yang Zhou, Weihua Li, Muhammad N. S Hadi
Faculty of Engineering - Papers (Archive)
As an important member of smart materials, magnetorheological elastomers (MREs) exhibit characteristics that their modulus can be controlled by an external magnetic field. Based on these experimental results, a viscoelastic solid model with four parameters was proposed to predict the performance of MRE. A building model, three stories high, was constructed using MATLAB SIMULINK to evaluate the performance of an MRE device in structural control. In addition, the performance of an MRF damper and an MRE device in structural control, where the resultant peak force was selected as a criterion in the evaluation process, was compared and discussed. Two controllers, …
The Comparison Between Nanostructure Control And Other Modifications To Improve The Electrochemical Performance Of Sno, Yong-Mook Kang, Min-Sik Park, Hua-Kun Liu, S. X. Dou
The Comparison Between Nanostructure Control And Other Modifications To Improve The Electrochemical Performance Of Sno, Yong-Mook Kang, Min-Sik Park, Hua-Kun Liu, S. X. Dou
Faculty of Engineering - Papers (Archive)
With an advent of the ubiquitous era, the demand for rechargeable batteries with a higher energy density is getting more and more critical. It is because applications are emerging such as electric vehicles and various types of portable electronic devices. Carbonaceous materials are commonly adopted as the anode material for commercial lithium-ion secondary batteries because it can reversibly intercalate or de-intercalate Li ion. However, low capacity of carbon has become a limiting factor in wider applications, and high capacity alternative to carbonaceous material has thus been sought for. Even if tin and silicon have been considered as one of the …
Comparison Of Photoexcited P-Inas Thz Radiation Source With Conventional Thermal Radiation Sources, Michael Smith, Rajind Mendis, Rodney E. Vickers, Roger A. Lewis
Comparison Of Photoexcited P-Inas Thz Radiation Source With Conventional Thermal Radiation Sources, Michael Smith, Rajind Mendis, Rodney E. Vickers, Roger A. Lewis
Faculty of Engineering - Papers (Archive)
P-type InAs excited by ultrashort optical pulses has been shown to be a strong emitter of terahertz radiation. In a direct comparison between a p-InAs emitter and conventional thermal radiation sources, we demonstrate that under typical excitation conditions p-InAs produces more radiation below 1.2 THz than a globar. By treating the globar as a blackbody emitter we calibrate a silicon bolometer which is used to determine the power of the p-InAs emitter. The emitted terahertz power was found to be 98±10 nW in this experiment.
Cross-Institutional Comparison Of Mechanics Examinations: A Guide For The Curious, Thomas Goldfinch, Anna L. Carew, Anne Gardner, Alan Henderson, Timothy J. Mccarthy, Giles Thomas
Cross-Institutional Comparison Of Mechanics Examinations: A Guide For The Curious, Thomas Goldfinch, Anna L. Carew, Anne Gardner, Alan Henderson, Timothy J. Mccarthy, Giles Thomas
Faculty of Engineering - Papers (Archive)
This paper describes a process used for, and interim findings of a comparison of final mechanics exam papers for first year engineering mechanics courses at the University of Wollongong, the University of Tasmania, the University of Technology, Sydney, and the Australian Maritime College. The process developed for the purpose emphasized a transparent and sequenced approach to comparing the concepts included in each exam paper, as well as the level of difficulty of exam questions. The exercise was carried out remotely, using readily available communications technology, including telephone, email, and Skype teleconferencing. This process is an example of a simple, easy …
Comparison Of Pseudo-Static And Pseudo-Dynamic Methods For Seismic Earth Pressures On Retaining Wall, D Choudhury, Sanjay S. Nimbalkar, J N Mandal
Comparison Of Pseudo-Static And Pseudo-Dynamic Methods For Seismic Earth Pressures On Retaining Wall, D Choudhury, Sanjay S. Nimbalkar, J N Mandal
Faculty of Engineering - Papers (Archive)
Design of retaining wall needs the complete knowledge of earth pressures for both active and passive conditions. Under earthquake condition, the design requires special attention to reduce the devastating effect of this natural hazard. But under seismic condition, the available literatures mostly give the pseudo-static analytical value of the earth pressures as an approximate solution to the real dynamic nature of the complex problem. In the present work, a recently developed pseudodynamic method, which incorporates time dependent effect of applied earthquake load and effect of shear and primary waves, is applied to study effect of variation of parameters like soil …
Comparison Of Geant4 Electromagnetic Physics Models Against The Nist Reference Data, Katsuya Amako, Susanna Guatelli, Vladimir N. Ivanchencko, Michel Maire, Barbara Mascialino, Koichi Murakami, Petteri Nieminen, Luciano Pandola, Sandra Parlati, Maria Grazia Pia, Michela Piergentili, Takashi Sasaki, Laszlo Urban
Comparison Of Geant4 Electromagnetic Physics Models Against The Nist Reference Data, Katsuya Amako, Susanna Guatelli, Vladimir N. Ivanchencko, Michel Maire, Barbara Mascialino, Koichi Murakami, Petteri Nieminen, Luciano Pandola, Sandra Parlati, Maria Grazia Pia, Michela Piergentili, Takashi Sasaki, Laszlo Urban
Faculty of Engineering - Papers (Archive)
The Geant4 Simulation Toolkit provides an ample set of physics models describing electromagnetic interactions of particles with matter. This paper presents the results of a series of comparisons for the evaluation of Geant4 electromagnetic processes with respect to United States National Institute of Standards and Technologies (NIST) reference data. A statistical analysis was performed to estimate quantitatively the compatibility of Geant4 electromagnetic models with NIST data; the statistical analysis also highlighted the respective strengths of the different Geant4 models.
Comparison Of Rotary Valve And Blowtank Feed Rate Capacities, David B. Hastie, Peter W. Wypych, Ian Frew, Christopher David Cook
Comparison Of Rotary Valve And Blowtank Feed Rate Capacities, David B. Hastie, Peter W. Wypych, Ian Frew, Christopher David Cook
Faculty of Engineering - Papers (Archive)
Rotary valves and blowtanks are widely used in industry for the pneumatic conveying of products, each having their pros and cons depending on the required application. This paper aims to show the differing results that can be obtained when conveying a product through a common pipeline using either a drop-through rotary valve or a bottom discharge blowtank. The rotary valve system has a number of issues, the main one being air leakage effects, whereas the blowtank system does not as it is an enclosed unit. The results of these experiments showed dramatic differences in product tonnage.