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Jagadeesh, A. (author), Ong, G. P. (author), Su, Y. M. (author)Drainage capacity of pervious pavement mixtures is commonly measured using a falling head permeameter at hydraulic heads much higher than expected in the field. Recent advancements in computational fluid dynamics (CFD)- and X-ray computed tomography (XRCT)-based modeling eliminates the laboratory challenges of maintaining lower hydraulic...journal article 2024
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Sun, Zhu (author), Fang, Hui (author), Yang, J. (author), Qu, Xinghua (author), Liu, Hongyang (author), Yu, Di (author), Ong, Yew Soon (author), Zhang, Jie (author)Recently, one critical issue looms large in the field of recommender systems - there are no effective benchmarks for rigorous evaluation - which consequently leads to unreproducible evaluation and unfair comparison. We, therefore, conduct studies from the perspectives of practical theory and experiments, aiming at benchmarking recommendation...journal article 2023
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de Man, Peter (author), Ortiz, Marco A. (author), Bluyssen, P.M. (author), de Man, Stijn J. (author), Rentmeester, Marie-Jozé (author), van der Vliet, Marijke (author), Wils, Evert-Jan (author), Ong, David S.Y. (author)Background: The initial aim was to study the effects of face masks worn by recently infected individuals on the airborne spread of SARS-CoV-2, but findings motivated us to proceed with comparing the presence of SARS-CoV-2 in air samples near infected individuals at home with those near infected intensive care unit (ICU) patients. Aim: To...journal article 2022
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Al Borno, Mazen (author), O’Day, Johanna (author), Ibarra, Vanessa (author), Dunne, James (author), Seth, A. (author), Habib, Ayman (author), Ong, Carmichael (author), Hicks, Jennifer (author), Uhlrich, Scott (author), Delp, Scott (author)Background: The ability to measure joint kinematics in natural environments over long durations using inertial measurement units (IMUs) could enable at-home monitoring and personalized treatment of neurological and musculoskeletal disorders. However, drift, or the accumulation of error over time, inhibits the accurate measurement of movement...journal article 2022
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Teo, Ying Shen (author), Jafari, Iman (author), Liang, Fei (author), Jung, Youmi (author), van der Hoek, J.P. (author), Ong, Say Leong (author), Hu, Jiangyong (author)The UV/Cl2 process (also known as chlorine photolysis, which is the combination of chlorine and simultaneous irradiation of UV light) is conventionally applied at acidic mediums for drinking water treatment and further treatment of wastewater effluents for secondary reuse. This is because the quantum yield of HO• from HOCl (ϕHO•, 254 = 1.4) is...journal article 2022
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Sun, Zhu (author), Yang, J. (author), Feng, Kaidong (author), Fang, Hui (author), Qu, Xinghua (author), Ong, Yew Soon (author)Product bundling is a commonly-used marketing strategy in both offline retailers and online e-commerce systems. Current research on bundle recommendation is limited by: (1) noisy datasets, where bundles are defined by heuristics, e.g., products co-purchased in the same session; and (2) specific tasks, holding unrealistic assumptions, e.g.,...conference paper 2022
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Wood, Gavin A. (author), Ong, Rachel (author), Haffner, M.E.A. (author)The transition of the baby boomer bulge into old age and their increasing longevity will lift the numbers of elderly in residential aged care. Population ageing and associated fiscal pressures have motivated governments to shift responsibility for the financing of aged care to the individual. We consider policies that include owner-occupiers’...journal article 2020
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Echaroj, Snunkhaem (author), Ong, Hwai Chyuan (author), Chen, X. (author)Bioethanol synthesis techniques have been studied intensively due to the energy crisis and various environmental concerns. A two-step bioethanol production process was carried out multiple times in an unbaffled agitator tank. The parameters varied, including the fermentation temperature, the pH level, the amount of yeast, and the impeller type....journal article 2020
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Ong, Carmichael F. (author), Geijtenbeek, T. (author), Hicks, Jennifer L. (author), Delp, Scott L. (author)Deficits in the ankle plantarflexor muscles, such as weakness and contracture, occur commonly in conditions such as cerebral palsy, stroke, muscular dystrophy, Charcot-Marie-Tooth disease, and sarcopenia. While these deficits likely contribute to observed gait pathologies, determining cause-effect relationships is difficult due to the often...journal article 2019
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Ong, Carmichael F. (author), Geijtenbeek, T. (author), Hicks, Jennifer L. (author), Delp, Scott L. (author)Predictive simulations of human walking have great potential to expand our understanding of locomotion. For instance, they can isolate the effect of specific impairments on observed gait pathologies or aid in designing assistive devices by modeling human-device interactions. Introducing simulated impairments or adding augmentation devices to a...abstract 2017
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Jefferson, T (author), Austen, S (author), Ong, R (author), Haffner, M.E.A. (author), Wood, G.A. (author)Housing wealth dominates the asset portfolios of the older population in Australia and many other countries. Given the anticipated spike in fiscal costs associated with population ageing, there is growing policy interest in housing equity withdrawal (HEW) to finance living needs in retirement. This paper sheds light on homeowners’ perceptions...journal article 2017
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- Haffner, M.E.A. (author), Ong, R (author), Wood, G.A. (author) abstract 2016
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- Haffner, M.E.A. (author), Ong, R (author), Wood, G.A. (author) abstract 2016
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Haffner, M.E.A. (author), Ong, R. (author), Wood, G.A. (author)Australian tax preferences and asset test concessions have traditionally favoured wealth accumulation in the primary home, with added impetus lent by a decade-long period of sustained house price appreciation prior to the Global Financial Crisis. The primary home is increasingly viewed by governments worldwide as a key store of wealth that can...report 2015
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Ong, R. (author), Jefferson, T. (author), Austen, S. (author), Haffner, M.E.A. (author), Wood, G.A. (author)More Australian home owners are using housing equity withdrawal to unlock financial resources to fund living expenses, especially in retirement. Policy is needed to address potential adverse consequences of these strategies.journal article 2014
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Superconductivity in CuxBi2Se3 and its Implications for Pairing in the Undoped Topological InsulatorHor, Y.S. (author), Williams, A.J. (author), Checkelsky, J.G. (author), Roushan, P. (author), Seo, J. (author), Xu, Q. (author), Zandbergen, H.W. (author), Yazdani, A. (author), Ong, N.P. (author), Cava, R.J. (author)Bi2Se3 is one of a handful of known topological insulators. Here we show that copper intercalation in the van der Waals gaps between the Bi2Se3 layers, yielding an electron concentration of ?2×1020??cm-3, results in superconductivity at 3.8 K in CuxBi2Se3 for 0.12?x?0.15. This demonstrates that Cooper pairing is possible in Bi2Se3 at accessible...journal article 2010
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McQueen, T.M. (author), Huang, Q. (author), Ksenofontov, V. (author), Felser, C. (author), Xu, Q. (author), Zandbergen, H. (author), Hor, Y.S. (author), Allred, J. (author), Williams, A.J. (author), Qu, D. (author), Checkelsky, J. (author), Ong, N.P. (author), Cava, R.J. (author)The recently discovered iron arsenide superconductors appear to display a universal set of characteristic features, including proximity to a magnetically ordered state and robustness of the superconductivity in the presence of disorder. Here we show that superconductivity in Fe1+?Se, which can be considered the parent compound of the...journal article 2009
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- Morosan, E. (author), Zandbergen, H.W. (author), Li, L. (author), Lee, M. (author), Checkelsky, J.G. (author), Heinrich, M. (author), Siegrist, T. (author), Ong, N.P. (author), Cava1, R.J. (author) journal article 2007
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- Bos, J.W.G. (author), Zandbergen, H.W. (author), Lee, M.H. (author), Ong, N.P. (author), Cava, R.J. (author) journal article 2007
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Bos, J.W.G. (author), Lee, M. (author), Morosan, E. (author), Zandbergen, H.W. (author), Lee, W.L. (author), Ong, N.P. (author), Cava, R.J. (author)Ferromagnetism is observed below 10 K in [Bi0.75Te0.125Mn0.125]Te. This material has the BiTe structure, which is made from the stacking of two Te-Bi-Te-Bi-Te blocks and one Bi-Bi block per unit cell. Crystal structure analysis shows that Mn is localized in the Bi2 blocks, and is accompanied by an equal amount of TeBi antisite occupancy in the...journal article 2006
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