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Full-Text Articles in Social and Behavioral Sciences

Effects Of Atmospheric Light Scattering On Spectroscopic Observations Of Greenhouse Gases From Space. Part 2: Algorithm Intercomparison In The Gosat Data Processing For Co2 Retrievals Over Tccon Sites, Sergey Oshchepkov, Andrey Bril, Tatsuya Yokota, Paul O. Wennberg, Nicholas M. Deutscher, Debra Wunch, Geoffrey C. Toon, Yukio Yoshida, Christopher W. O'Dell, David Crisp, Charles E. Miller, Christian Frankenberg, Andre Butz, Ilse Aben, Sandrine Guerlet, Otto Hasekamp, Hartmut Boesch, Austin Cogan, Robert Parker, David Griffith, Ronald Macatangay, Justus Notholt, Ralf Sussmann, Markus Rettinger, Vanessa Sherlock, John Robinson, Esko Kyro, Pauli Heikkinen, Dietrich G. Feist, Isamu Morino, Nikolay Kadygrov, Dmitry Belikov, Shamil Maksyutov, Tsuneo Matsunaga, Osamu Uchino, Hiroshi Watanabe Feb 2013

Effects Of Atmospheric Light Scattering On Spectroscopic Observations Of Greenhouse Gases From Space. Part 2: Algorithm Intercomparison In The Gosat Data Processing For Co2 Retrievals Over Tccon Sites, Sergey Oshchepkov, Andrey Bril, Tatsuya Yokota, Paul O. Wennberg, Nicholas M. Deutscher, Debra Wunch, Geoffrey C. Toon, Yukio Yoshida, Christopher W. O'Dell, David Crisp, Charles E. Miller, Christian Frankenberg, Andre Butz, Ilse Aben, Sandrine Guerlet, Otto Hasekamp, Hartmut Boesch, Austin Cogan, Robert Parker, David Griffith, Ronald Macatangay, Justus Notholt, Ralf Sussmann, Markus Rettinger, Vanessa Sherlock, John Robinson, Esko Kyro, Pauli Heikkinen, Dietrich G. Feist, Isamu Morino, Nikolay Kadygrov, Dmitry Belikov, Shamil Maksyutov, Tsuneo Matsunaga, Osamu Uchino, Hiroshi Watanabe

Faculty of Science, Medicine and Health - Papers: part A

This report is the second in a series of companion papers describing the effects of atmospheric light scattering in observations of atmospheric carbon dioxide (CO2) by the Greenhouse gases Observing SATellite (GOSAT), in orbit since 23 January 2009. Here we summarize the retrievals from six previously published algorithms; retrieving column-averaged dry air mole fractions of CO2 (XCO2) during 22 months of operation of GOSAT from June 2009. First, we compare data products from each algorithm with ground-based remote sensing observations by Total Carbon Column Observing Network (TCCON). Our GOSAT-TCCON coincidence criteria select satellite observations within a 5° radius of 11 ...


The Effects Of Spending Time Outdoors In Daylight On The Psychosocial Wellbeing Of Older People And Family Carers: A Comprehensive Systematic Review Protocol, Victoria Traynor, Ritin Fernandez, Katherine Caldwell Jan 2013

The Effects Of Spending Time Outdoors In Daylight On The Psychosocial Wellbeing Of Older People And Family Carers: A Comprehensive Systematic Review Protocol, Victoria Traynor, Ritin Fernandez, Katherine Caldwell

Faculty of Science, Medicine and Health - Papers: part A

Review question/objective The overall objective of this research is to undertake a systematic review of the effects of spending time outdoors in daylight on the psychosocial wellbeing of older adults and family carers. The specific questions to be addressed are: Which aspects of psychosocial wellbeing are affected by spending time outdoors in daylight in older adults and family carers? To what extent is spending time outdoors in the daylight effective in improving aspects of psychosocial wellbeing in older adults and family carers?


Can Poor Health Literacy Contribute To Potential Side Effects Associated With Buying Over-The-Counter Non-Steroidal Anti-Inflammatory Drugs?, J R. Mullan, Judy Mullan, K M. Weston, A Bonney, C Magee Jan 2013

Can Poor Health Literacy Contribute To Potential Side Effects Associated With Buying Over-The-Counter Non-Steroidal Anti-Inflammatory Drugs?, J R. Mullan, Judy Mullan, K M. Weston, A Bonney, C Magee

Faculty of Science, Medicine and Health - Papers: part A

No abstract provided.


Short-Term Effects Of Fish And Fish Oil Consumption On Total And High Molecular Weight Adiponectin Levels In Overweight And Obese Adults, Elizabeth P. Neale, Beverly Muhlhausler, Yasmine C. Probst, Marijka J. Batterham, Francesca Fernandez, Linda C. Tapsell Jan 2013

Short-Term Effects Of Fish And Fish Oil Consumption On Total And High Molecular Weight Adiponectin Levels In Overweight And Obese Adults, Elizabeth P. Neale, Beverly Muhlhausler, Yasmine C. Probst, Marijka J. Batterham, Francesca Fernandez, Linda C. Tapsell

Faculty of Science, Medicine and Health - Papers: part A

Objective: Fish or fish oil consumption may increase levels of total and high molecular weight (HMW) adiponectin, a hormone associated with anti-inflammatory and insulin-sensitising effects, however it is not known if the effects of the food and supplement are the same. The aim of this study was to compare the effect of consuming fish and fish oil supplements on plasma total and HMW adiponectin concentrations in overweight human participants.

Materials/Methods: 29 overweight and obese participants underwent a two week run-in period, followed by a four week isocaloric dietary intervention which provided 1.8g of long chain omega-3 polyunsaturated fatty ...


Foods, Nutrients Or Whole Diets: Effects Of Targeting Fish And Lcn3pufa Consumption In A 12mo Weight Loss Trial, Linda C. Tapsell, Marijka Batterham, Karen E. Charlton, Elizabeth P. Neale, Yasmine C. Probst, Jane E. O'Shea, Rebecca L. Thorne, Qingsheng Zhang, Jimmy Chun Yu Louie Jan 2013

Foods, Nutrients Or Whole Diets: Effects Of Targeting Fish And Lcn3pufa Consumption In A 12mo Weight Loss Trial, Linda C. Tapsell, Marijka Batterham, Karen E. Charlton, Elizabeth P. Neale, Yasmine C. Probst, Jane E. O'Shea, Rebecca L. Thorne, Qingsheng Zhang, Jimmy Chun Yu Louie

Faculty of Science, Medicine and Health - Papers: part A

Background There is some evidence in the literature that emphasising fish consumption may assist with weight loss. The aim was to assess the effects of advice to consume 2 fish meals per week in a weight loss diet. Methods A parallel randomised placebo-controlled trial was conducted in 118 obese Australian adults (mean BMI +/- SD 31.3 +/- 3.5 kg/m2; mean age +/- SD 45 +/- 10 y; 28% male). Participants received low calorie dietary advice + placebo (1 g olive oil; Control), low calorie dietary advice emphasising fish + placebo (Fish), or low calorie dietary advice emphasising fish diet + LCn3PUFA supplements (Fish + S ...


On The Effects Of Spreading Sequences Over Mimo Systems, Tianle Liu, David A. Stirling, Le Chung Tran, Tadeusz A. Wysocki, Beata J. Wysocki, Prashan Dissanayake Mudiyanselage,, Peter James Vial Jan 2013

On The Effects Of Spreading Sequences Over Mimo Systems, Tianle Liu, David A. Stirling, Le Chung Tran, Tadeusz A. Wysocki, Beata J. Wysocki, Prashan Dissanayake Mudiyanselage,, Peter James Vial

Faculty of Engineering and Information Sciences - Papers: Part A

In this paper, we develop a Software Defined Radio (SDR) test bed to evaluate the Multiple Access Interference (MAI) effects over SISO and 2 x 1MIMO systems. It can be observed that under asynchronous transmissions, the Gold code leads to the best performance over both systems due to the fact that it has the best correlation properties. We also find the MAI effects in terms of the spreading sequences pairs on MIMO-STS systems. We propose a criterion for selecting promising spreading sequences for MIMO systems. Based on the measured results, we identify pairs of spreading sequences which have improved BER ...


Effects Of Age On Strength Of The Toe Flexor Muscles, Karen J. Mickle, Salih Angin, Gillian Crofts, Julie R. Steele, Christopher Nester Jan 2013

Effects Of Age On Strength Of The Toe Flexor Muscles, Karen J. Mickle, Salih Angin, Gillian Crofts, Julie R. Steele, Christopher Nester

Faculty of Science, Medicine and Health - Papers: part A

Abstract of paper that presented at the Eleventh Footwear Biomechanics Symposium, Natal, Brazil, 2013.


Does Health Capital Have Differential Effects On Economic Growth?, Arusha V. Cooray Jan 2013

Does Health Capital Have Differential Effects On Economic Growth?, Arusha V. Cooray

Faculty of Commerce - Papers (Archive)

Investigating the impact of health capital disaggregated by gender on economic growth in a sample of 210 countries over the 1990-2008 period, this study suggests that the influence of health capital across countries cannot be generalised. Results for the full sample indicate that health capital does not have a robust and significant effect on economic growth unless through their interactions with health expenditure and education. The results disaggregated by income group reveal that health capital has a positive robust influence on economic growth in high and upper middle income economies. In low and low middle income economies, health capital gains ...


Predicting Additive And Non-Additive Genetic Effects From Trials Where Traits Are Affected By Interplot Competition, Colleen H. Hunt, Alison B. Smith, David R. Jordan, Brian R. Cullis Jan 2013

Predicting Additive And Non-Additive Genetic Effects From Trials Where Traits Are Affected By Interplot Competition, Colleen H. Hunt, Alison B. Smith, David R. Jordan, Brian R. Cullis

Faculty of Engineering and Information Sciences - Papers: Part A

There are two key types of selection in a plant breeding program, namely selection of hybrids for potential commercial use and the selection of parents for use in future breeding. Oakey et al. (in Theoretical and Applied Genetics 113, 809-819, 2006) showed how both of these aims could be achieved using pedigree information in a mixed model analysis in order to partition genetic effects into additive and non-additive effects. Their approach was developed for field trial data subject to spatial variation. In this paper we extend the approach for data from trials subject to interplot competition. We show how the ...


Self-Reported Side Effects Of Breast Cancer Treatment: A Cross-Sectional Study Of Incidence, Associations, And The Influence Of Exercise, Sheridan A. Gho, Julie R. Steele, Sandra C. Jones, Bridget J. Munro Jan 2013

Self-Reported Side Effects Of Breast Cancer Treatment: A Cross-Sectional Study Of Incidence, Associations, And The Influence Of Exercise, Sheridan A. Gho, Julie R. Steele, Sandra C. Jones, Bridget J. Munro

Faculty of Science, Medicine and Health - Papers: part A

Purpose Side effects as a result of breast cancer treatment may have a lasting detrimental impact on quality of life. Exercise has been shown to be an effective intervention in post-treatment care. This study aimed to gain a better understanding of breast cancer treatment-related side effects through identifying potential patient characteristic associations, including current levels of exercise.

Methods Four hundred and thirty-two breast cancer patients completed an online survey covering their treatment and demographic background, current exercise levels, and self-reported treatment side effects. Side effects were considered in a binary logistic regression against age, surgery, currently undergoing treatment, and exercise ...


The Effects Of Insufflation Conditions On Rat Mesothelium, Andrew K. Davey, Jessica Hayward, Jean K. Marshall, Anthony E. Woods Jan 2013

The Effects Of Insufflation Conditions On Rat Mesothelium, Andrew K. Davey, Jessica Hayward, Jean K. Marshall, Anthony E. Woods

Faculty of Science, Medicine and Health - Papers: part A

Aim. The aim of this investigation was to examine the alterations in the peritoneum after cold dry CO2, heated dry CO2, and humidified heated CO2 at pressures equivalent to intraperitoneal pressures used in human laparoscopy. Methods. Eighteen rats were divided into 4 treatment groups—group 1: untreated control; group 2: insufflation with cold dry CO2; group 3: insufflation with heated, dry CO2; group 4: insufflation with heated and humidified CO2. The abdomen was insufflated to 5 mm/Hg (flow rate 50 mL/min) for 2 h. Twelve hours later, tissue samples were collected for analysis by light microscopy (LM) and ...


Segregation Of A Latent High Adiposity Phenotype In Families With A History Of Type 2 Diabetes Mellitus Implicates Rare Obesity-Susceptibility Genetic Variants With Large Effects In Diabetes-Related Obesity, Arthur B. Jenkins, Marijka Batterham, Dorit Samocha-Bonet, Katherine Tonks, Jerry R. Greenfield, Lesley V. Campbell Jan 2013

Segregation Of A Latent High Adiposity Phenotype In Families With A History Of Type 2 Diabetes Mellitus Implicates Rare Obesity-Susceptibility Genetic Variants With Large Effects In Diabetes-Related Obesity, Arthur B. Jenkins, Marijka Batterham, Dorit Samocha-Bonet, Katherine Tonks, Jerry R. Greenfield, Lesley V. Campbell

Faculty of Science, Medicine and Health - Papers: part A

Background We recently reported significantly greater weight gain in non-diabetic healthy subjects with a 1st degree family history (FH+) of type 2 diabetes mellitus (T2DM) than in a matched control group without such history (FH−) during voluntary overfeeding, implying co-inheritance of susceptibilities to T2DM and obesity. We have estimated the extent and mode of inheritance of susceptibility to increased adiposity in FH+.

Methods Normoglycaemic participants were categorised either FH+ (≥1 1st degree relative with T2DM, 50F/30M, age 45±14 (SD) yr) or FH− (71F/51M, age 43±14 yr). Log-transformed anthropometric measurements (height, hip and waist circumferences) and lean ...


Effects Of Tungsten Addition On The Microstructure And Mechanical Properties Of Microalloyed Forging Steels, Jingwei Zhao, Taekyung Lee, Jeong Hun Lee, Zhengyi Jiang, Chong Soo Lee Jan 2013

Effects Of Tungsten Addition On The Microstructure And Mechanical Properties Of Microalloyed Forging Steels, Jingwei Zhao, Taekyung Lee, Jeong Hun Lee, Zhengyi Jiang, Chong Soo Lee

Faculty of Engineering and Information Sciences - Papers: Part A

In the current study, the effects of tungsten (W) addition on the microstructure, hardness, and room/low [223 K and 173 K (-50 C and -100 C)] temperature tensile properties of microalloyed forging steels were systematically investigated. Four kinds of steel specimens were produced by varying the W additions (0, 0.1, 0.5, and 1 wt pct). The microstructure showed that the addition of W does not have any noticeable effect on the amount of precipitates. The precipitates in W-containing steels were all rich in W, and the W concentration in the precipitates increased with the increasing W content ...


Effects Of Caustic Cleaning On Pore Size Of Nanofiltration Membranes And Their Rejection Of Trace Organic Chemicals, Alexander Simon, James A. Mcdonald, Stuart J. Khan, William E. Price, Long D. Nghiem Jan 2013

Effects Of Caustic Cleaning On Pore Size Of Nanofiltration Membranes And Their Rejection Of Trace Organic Chemicals, Alexander Simon, James A. Mcdonald, Stuart J. Khan, William E. Price, Long D. Nghiem

Faculty of Engineering and Information Sciences - Papers: Part A

The aim of this study was to assess the impact of caustic cleaning on the rejection of three different trace organic chemical (TrOC) groups (i.e. neutral hydrophilic, neutral hydrophobic and negatively charged) by two nanofiltration (NF) membranes ‒ namely NF270 and NF90. Chemical cleaning was simulated by exposing virgin membrane samples to commercial caustic cleaning formulations as well as sodium hydroxide solutions containing analytical grade additives such as sodium dodecyl sulfate or ethylenediaminetetraacetic acid. The membrane average pore size before and after exposure to a commercially available caustic cleaning formulation was determined based on the pore transport model. The results ...


Effects Of Tungsten On Continuous Cooling Transformation Characteristics Of Microalloyed Steels, Jingwei Zhao, Zhengyi Jiang, Ji Soo Kim, Chong Soo Lee Jan 2013

Effects Of Tungsten On Continuous Cooling Transformation Characteristics Of Microalloyed Steels, Jingwei Zhao, Zhengyi Jiang, Ji Soo Kim, Chong Soo Lee

Faculty of Engineering and Information Sciences - Papers: Part A

Continuous cooling transformation (CCT) characteristics of microalloyed steels with different tungsten (W) contents (0, 0.1 and 1. wt.%) were investigated to obtain the necessary information for heat treatment of these steels. The effects of W addition on the sizes of prior austenite grains and precipitates were analysed. CCT diagrams were obtained by varying the cooling rates from 0.1 to 120. °C/s. Transformation characteristics were determined by using dilatometer test, microscopic observation and hardness measurement. The results showed that W had a positive effect on the refinement of prior austenite grains and precipitates. The CCT diagrams exhibited that ...


Shear Lag And Eccentricity Effects Of Bolted Connections In Cold-Formed Steel Sections, Lip H. Teh, Veysel Yazici Jan 2013

Shear Lag And Eccentricity Effects Of Bolted Connections In Cold-Formed Steel Sections, Lip H. Teh, Veysel Yazici

Faculty of Engineering and Information Sciences - Papers: Part A

This paper examines the "three factors" approach previously presented by the senior author for determining the net section efficiency of a bolted cold-formed steel open profile. One objective is to ascertain that the net section efficiency is governed by three factors: the in-plane shear lag associated with stress concentration around a bolt hole that is also present in a flat sheet, the out-of-plane shear lag that is also present in a bi-symmetric I-section bolted at the flanges only, and the bending moment arising from the connection eccentricity with respect to the neutral axis. This paper presents the test results of ...


Group Effects Of Piles Due To Lateral Soil Movement, Hongyu Qin, Wei Dong Guo Jan 2013

Group Effects Of Piles Due To Lateral Soil Movement, Hongyu Qin, Wei Dong Guo

Faculty of Engineering and Information Sciences - Papers: Part A

Laboratory model tests have been conducted to investigate the responses of piles subjected to lateral soil movement. The results of a single pile test and four tests on two piles arranged in a row perpendicular to the direction of soil movement are presented. The development of maximum bending moment, maximum shear force, and pile deflection with soil movement and the largest pile response profiles for the single pile and pile groups are compared. Group effect was evaluated using group factor which is defined in terms of the measured maximum bending moment. The major findings are (1) the pile head conditions ...


Modelling Of Size Effects In Microforming Process With Consideration Of Grained Heterogeneity, H N. Lu, D B. Wei, Z Y. Jiang, X H. Liu, K Manabe Jan 2013

Modelling Of Size Effects In Microforming Process With Consideration Of Grained Heterogeneity, H N. Lu, D B. Wei, Z Y. Jiang, X H. Liu, K Manabe

Faculty of Engineering and Information Sciences - Papers: Part A

Size effect is a special phenomenon in metal micro-forming process. As the deformation process is scale down to micro/mesoscale, the characteristics of single grain involved in the deformed region play a significant role on the material mechanical behaviours resulting in the invalidation of classical theories in microforming. This paper presents a newly developed material model in microscale on the basis of the grained heterogeneity (e.g. grain size, shape and deformability) and specimen dimension. Voronoi tessellation has been employed to describe the polycrystalline aggregate. The grain shape is controlled by the centroidal-voronoi algorithm to drive grains into steady state ...


Radial Consolidation Model Incorporating The Effects Of Vacuum Preloading And Non-Darcian Flow, Kourosh Kianfar, Buddhima Indraratna, Cholachat Rujikiatkamjorn Jan 2013

Radial Consolidation Model Incorporating The Effects Of Vacuum Preloading And Non-Darcian Flow, Kourosh Kianfar, Buddhima Indraratna, Cholachat Rujikiatkamjorn

Faculty of Engineering and Information Sciences - Papers: Part A

A modified 150 mm Rowe cell equipped with pore water pressure measurement was used to capture the flow relationship during vacuum-assisted radial consolidation. Based on the measured data, a radial consolidation model incorporating the effects of vacuum preloading is proposed, based on a non-linear relationship between the flow velocity and hydraulic gradient. The predictions of the proposed consolidation model are then compared with the predictions based on Hansbo’s Darcian and non- Darcian models. The agreement between the proposed model and the measured data is shown, and the advantages of the proposed model compared with the existing models are discussed ...


Effects Of Feed And Draw Solution Temperature And Transmembrane Temperature Difference On The Rejection Of Trace Organic Contaminants By Forward Osmosis, Ming Xie, William E. Price, Long D. Nghiem, Menachem Elimelech Jan 2013

Effects Of Feed And Draw Solution Temperature And Transmembrane Temperature Difference On The Rejection Of Trace Organic Contaminants By Forward Osmosis, Ming Xie, William E. Price, Long D. Nghiem, Menachem Elimelech

Faculty of Engineering and Information Sciences - Papers: Part A

The effects of feed and draw solution temperature and transmembrane temperature difference on the rejection of 12 trace organic contaminants (TrOCs) by two forward osmosis (FO) membranes were investigated. The membrane structure parameter (S) and the reverse salt (NaCl) flux selectivity (RSFS) were constant over the temperature range of 20-40 1C, suggesting that within this range, the solution temperature did not significantly influence the membrane polymeric structure. Draw solution properties, including diffusivity, viscosity, and osmotic pressure, played an important role in water and reverse salt (NaCl) flux behaviour and TrOC rejection. Pure water and salt (NaCl) permeability coefficients of the ...


Effects Of Geosynthetic Reinforcement On Performance Of Ballasted Rail Track, Pongpipat Anantanasakul, Buddhima Indraratna, Sanjay S. Nimbalkar, Tim Neville Jan 2013

Effects Of Geosynthetic Reinforcement On Performance Of Ballasted Rail Track, Pongpipat Anantanasakul, Buddhima Indraratna, Sanjay S. Nimbalkar, Tim Neville

Faculty of Engineering and Information Sciences - Papers: Part A

The 'field' performance of different geosynthetics to reinforce ballasted rail tracks was investigated. An extensive monitoring program was undertaken on fully instrumented track sections constructed near Singleton, New South Wales. Four types of geosynthetics were installed at the ballast-subballast interface of track sections located on subgrades with three distinctly different values of stiffness. It was found that geogrids could decrease vertical settlements of the ballast layer with obvious benefits of improved track stability and decreased maintenance cost. It was also found that the effectiveness of reinforcing geogrids increased when the subgrade stiffness decreased. Keywords: Geosynthetic, Reinforcement, Rail track, Ballast.


A Model Of The Effects Of Authority On Consensus Formation In Adaptive Networks: Impact On Network Topology And Robustness, Brenton J. Prettejohn, Matthew J. Berryman, Mark D. Mcdonnell Jan 2013

A Model Of The Effects Of Authority On Consensus Formation In Adaptive Networks: Impact On Network Topology And Robustness, Brenton J. Prettejohn, Matthew J. Berryman, Mark D. Mcdonnell

Faculty of Engineering and Information Sciences - Papers: Part A

Opinions of individuals in real social networks are arguably strongly influenced by external determinants, such as the opinions of those perceived to have the highest levels of authority. In order to model this, we have extended an existing model of consensus formation in an adaptive network by the introduction of a parameter representing each agent's level of 'authority' based on their opinion relative to the overall opinion distribution. We found that introducing this model, along with a randomly varying opinion convergence factor, significantly impacts the final state of converged opinions and the number of interactions required to reach that ...


Numerical Solution Of Stone Column Improved Soft Soil Considering Arching, Clogging And Smear Effects, Buddhima Indraratna, Sudip Basack, Cholachat Rujikiatkamjorn Jan 2013

Numerical Solution Of Stone Column Improved Soft Soil Considering Arching, Clogging And Smear Effects, Buddhima Indraratna, Sudip Basack, Cholachat Rujikiatkamjorn

Faculty of Engineering and Information Sciences - Papers: Part A

Improvement of soft clay deposits by the installation of stone columns is one of the most popular techniques followed worldwide. The stone columns not only act as reinforcingmaterial increasing the overall strength and stiffness of the compressible soft soil, but they also promote consolidation through effective drainage. The analytical and numerical solutions available for ascertaining the response of column-reinforced soil have been developed on the basis of the equal strain hypothesis. For typical surcharge (embankment) loading, the free strain analysis appears to give more realistic results comparable to field data. The paper presents a novel numericalmodel (finite-differencemethod) to analyze the ...


High-Throughput Particle Manipulation By Hydrodynamic, Electrokinetic, And Dielectrophoretic Effects In An Integrated Microfluidic Chip, Shunbo Li, Ming Li, Kristelle Bougot-Robin, Wenbin Cao, Irene Yeung Chau, Weihua Li, Weijia Wen Jan 2013

High-Throughput Particle Manipulation By Hydrodynamic, Electrokinetic, And Dielectrophoretic Effects In An Integrated Microfluidic Chip, Shunbo Li, Ming Li, Kristelle Bougot-Robin, Wenbin Cao, Irene Yeung Chau, Weihua Li, Weijia Wen

Faculty of Engineering and Information Sciences - Papers: Part A

Integrating different steps on a chip for cell manipulations and sample preparation is of foremost importance to fully take advantage of microfluidic possibilities, and therefore make tests faster, cheaper and more accurate. We demonstrated particle manipulation in an integrated microfluidic device by applying hydrodynamic, electroosmotic (EO), electrophoretic (EP), and dielectrophoretic (DEP) forces. The process involves generation of fluid flow by pressure difference, particle trapping by DEP force, and particle redirect by EO and EP forces. Both DC and AC signals were applied, taking advantages of DC EP, EO and AC DEP for on-chip particle manipulation. Since different types of particles ...


Effects Of Tungsten Addition And Heat Treatment Conditions On Microstructure And Mechanical Properties Of Microalloyed Forging Steels, Jingwei Zhao, Zhengyi Jiang, Chong Soo Lee Jan 2013

Effects Of Tungsten Addition And Heat Treatment Conditions On Microstructure And Mechanical Properties Of Microalloyed Forging Steels, Jingwei Zhao, Zhengyi Jiang, Chong Soo Lee

Faculty of Engineering and Information Sciences - Papers: Part A

In the present work, the effects of tungsten (W) addition and heat treatment conditions on the microstructure, impact toughness and tensile properties of microalloyed forging steels were studied. Four kinds of microalloyed forging steels were produced by varying W additions (0, 0.5, 1 and 2 wt%). Heat treatment was carried out at temperatures ranging from 840 to 950 °C followed by air and furnace cooling. Mechanical tests were used to evaluate the room temperature Charpy impact and tensile properties. The resulting microstructures were analysed via optical microscope (OM), scanning electron microscope (SEM) and transmission electron microscope (TEM). The results ...


Effects Of Fouling On The Stress-Strain-Degradation Behaviour Of Rail Ballast, Buddhima Indraratna, Nayoma C. Tennakoon, Sanjay Nimbalkar, Cholachat Rujikiatkamjorn Jan 2013

Effects Of Fouling On The Stress-Strain-Degradation Behaviour Of Rail Ballast, Buddhima Indraratna, Nayoma C. Tennakoon, Sanjay Nimbalkar, Cholachat Rujikiatkamjorn

Faculty of Engineering and Information Sciences - Papers: Part A

Ballast is most commonly used as a structural component of rail track due to its high load bearing capacity, resiliency and rapid drainage. However, ballast along coal freight corridors often becomes fouled due to spilling of coal from moving wagons, in addition to further track deterioration attributed to particle breakage and pumping of soft subgrade. Highly fouled ballast needs to be cleaned or replaced to maintain the desired track resiliency, load bearing capacity and the track alignment. In order to identify the risk associated with fouling, it is important to accurately assess the amount of fouling. In this paper, the ...


Effects Of Long-Distance Walking On Socket-Limb Interface Pressure, Tactile Sensitivity And Subjective Perceptions Of Trans-Tibial Amputees, L F. Yeung, Aaron Leung, Ming Zhang, Winson Lee Jan 2013

Effects Of Long-Distance Walking On Socket-Limb Interface Pressure, Tactile Sensitivity And Subjective Perceptions Of Trans-Tibial Amputees, L F. Yeung, Aaron Leung, Ming Zhang, Winson Lee

Faculty of Engineering and Information Sciences - Papers: Part A

PURPOSE: Many trans-tibial amputees could not tolerate long-distance walking. Lack of walking could explain for the increased cardiovascular diseases mortality rate. This study investigated the effects of long-distance walking (LDW) on socket-limb interface pressure, tactile sensitivity of the residual limb, and subjective feedbacks, which potentially identified the difficulties in LDW. METHOD: Five male unilateral trans-tibial amputees walked on a level treadmill for a total of one hour at comfortable speed. Tactile sensitivity of the residual limb and socket-limb interface pressure during over-ground walking were measured before and after the treadmill walking. Modified Prosthesis Evaluation Questionnaires were also administered. RESULTS: After ...


A Randomised Placebo-Controlled Trial To Differentiate The Acute Cognitive And Mood Effects Of Chlorogenic Acid From Decaffeinated Coffee, David A. Camfield, Beata Y. Silber, Andrew B. Scholey, Karen Nolidin, Antionette Goh, Con Stough Jan 2013

A Randomised Placebo-Controlled Trial To Differentiate The Acute Cognitive And Mood Effects Of Chlorogenic Acid From Decaffeinated Coffee, David A. Camfield, Beata Y. Silber, Andrew B. Scholey, Karen Nolidin, Antionette Goh, Con Stough

Faculty of Social Sciences - Papers

In the current study, sixty healthy older adults aged 50 years or older, and who were light to moderate coffee drinkers, were administered 6g of a decaffeinated green coffee blend (NESCAFÉ Green Blend coffee; GB) or 540mg pure chlorogenic acids (CGA) or placebo in a double-blind acute cross-over design, with cognitive and mood assessments pre-dose, 40-mins and 120-mins post-dose. The primary outcome measure was accuracy in Rapid Visual Information Processing (RVIP). Secondary cognitive outcome measures included RVIP reaction time as well as Inspection time (IT), Jensen Box decision/reaction times, serial subtraction and N-Back working memory. Secondary mood measures included ...


Chronic Effects Of Cannabis On Sensory Gating, Samantha J. Broyd, Lisa-Marie Greenwood, Rodney Croft, Anna Dalecki, Juanita Todd, Patricia T. Michie, Stuart J. Johnstone, Nadia Solowij Jan 2013

Chronic Effects Of Cannabis On Sensory Gating, Samantha J. Broyd, Lisa-Marie Greenwood, Rodney Croft, Anna Dalecki, Juanita Todd, Patricia T. Michie, Stuart J. Johnstone, Nadia Solowij

Faculty of Social Sciences - Papers

Chronic cannabis use has been associated with neurocognitive deficits, alterations in brain structure and function, and with psychosis. This study investigated the effects of chronic cannabis use on P50 sensory-gating in regular users, and explored the association between sensory gating, cannabis use history and the development of psychotic-like symptoms. Twenty controls and 21 regular cannabis users completed a P50 paired-click (S1 and S2) paradigm with an inter-pair interval of 9. s. The groups were compared on P50 amplitude to S1 and S2, P50 ratio (S2/S1) and P50 difference score (S1-S2). While cannabis users overall did not differ from controls ...


Varying Task Difficulty In The Go/Nogo Task: The Effects Of Inhibitory Control, Arousal, And Perceived Effort On Erp Components, Nicholas Benikos, Stuart J. Johnstone, Steven J. Roodenrys Jan 2013

Varying Task Difficulty In The Go/Nogo Task: The Effects Of Inhibitory Control, Arousal, And Perceived Effort On Erp Components, Nicholas Benikos, Stuart J. Johnstone, Steven J. Roodenrys

Faculty of Social Sciences - Papers

Similar to other executive functions, inhibitory control is thought to be a dynamic process that can be influenced by variations in task difficulty. However, little is known about how different task parameters alter inhibitory performance and processing as a task becomes more difficult. The aim of this study was to investigate the influence of varying task difficulty, via manipulation of reaction time deadline (RTD), on measures of inhibitory control, perceived effort, and task-related arousal (indexed by skin conductance level). Sixty adults completed a visual Go/Nogo task (70% Go) after being randomly assigned to one of three task difficulty conditions ...