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Full-Text Articles in Engineering
Field Study Of Air Conditioning And Thermal Comfort In Residential Buildings, Jungsoo Kim, Richard De Dear, Tom Parkinson, Christhina Candido, Paul Cooper, Zhenjun Ma, Wasim Saman
Field Study Of Air Conditioning And Thermal Comfort In Residential Buildings, Jungsoo Kim, Richard De Dear, Tom Parkinson, Christhina Candido, Paul Cooper, Zhenjun Ma, Wasim Saman
Faculty of Engineering and Information Sciences - Papers: Part A
The aim of this study is to better understand the external and internal drivers that affect residential air-conditioning (A/C) use decisions and occupant comfort. Field observations were carried out using instrumental measurements and smartphone questionnaires, recording householder's A/C usage patterns, indoor/outdoor climatic factors, perception of thermal comfort and adaptive behaviours.
On The Classical Solvability Of Near Field Reflector Problems, Jiakun Liu, Neil Trudinger
On The Classical Solvability Of Near Field Reflector Problems, Jiakun Liu, Neil Trudinger
Faculty of Engineering and Information Sciences - Papers: Part A
In this paper we prove the existence of classical solutions to near field reflector problems, both for a point light source and for a parrallel light source, with planar recievers. These problems involve monge-Ampere type equations, subject to nonlinear oblique boundary conditions. Our approach builds on earlier work in the optimal transportation case by Trudinger and Wang and makes use of a recent extension of degree theory to oblique boundary conditioins by Li, Liu and Nguyen.
A Local Field Correlated And Monte Carlo Based Shallow Neural Network Model For Non-Linear Time Series Prediction, Qingguo Zhou, Huaming Chen, Hong Zhao, Gaofeng Zhang, Jianming Yong, Jun Shen
A Local Field Correlated And Monte Carlo Based Shallow Neural Network Model For Non-Linear Time Series Prediction, Qingguo Zhou, Huaming Chen, Hong Zhao, Gaofeng Zhang, Jianming Yong, Jun Shen
Faculty of Engineering and Information Sciences - Papers: Part A
Water resource problems currently are much more important in proper planning especially for arid regions, such as Gansu in China. For agricultural and industrial activities, prediction of groundwater status is critical. As a main branch of neural network, shallow artificial neural network models have been deployed in prediction areas such as groundwater and rainfall since late 1980s. In this paper, artificial neural network (ANN) model within a newly proposed algorithm has been developed for groundwater status forecasting. Having considered previous algorithms for ANN model in time series forecast, this new Monte Carlo based algorithm demonstrated a good result. The experiments …
Field Assessment Of Ballasted Railroads Using Geosynthetics And Shock Mats, Sanjay Nimbalkar, Buddhima Indraratna
Field Assessment Of Ballasted Railroads Using Geosynthetics And Shock Mats, Sanjay Nimbalkar, Buddhima Indraratna
Faculty of Engineering and Information Sciences - Papers: Part A
The ballasted railroads form an integral part of the modern transportation infrastructure in Australia. However, they are subjected to large stresses especially on mixed traffic lines, where heavy freight trains are operated. Under such adverse operational conditions, ballast progressively degrades contributing to overall track deformations and frequent maintenance. Maintaining geometry of ballast embankments is necessary to improve safety and efficiency of railway operations. The use of artificial inclusions (geosynthetics and shock mats) as well as recycled (discarded) ballast in track can be economically viable options. In order to gain more insight, the CGRE has conducted extensive field trials on two …
Electric-Field Effects On The Closed Orbits Of The Diamagnetic Kepler Problem, Colin Bleasdale, A Bruno-Alfonso, Roger A. Lewis
Electric-Field Effects On The Closed Orbits Of The Diamagnetic Kepler Problem, Colin Bleasdale, A Bruno-Alfonso, Roger A. Lewis
Australian Institute for Innovative Materials - Papers
The nonrelativistic closed orbits of an electron interacting with a unit positive charge in the presence of homogeneous magnetic and electric fields are investigated. A simplified theoretical model is proposed utilizing appropriate initial conditions in semiparabolic coordinates for arbitrary magnetic-and electric-field alignments. The evolution of both the angular spectrum of orbits and the shape and duration of individual orbits, as the electric-field intensity and scaled energy are increased, is shown for the cases of both parallel and crossed fields. Orbit mixing in the high-field regime is investigated in the case of parallel fields, giving an indication of the system moving …
Enhanced Magnetism In Field-Cooled [Ni80fe20/Mn]3 Multilayers Studied Using Polarized Neutron Reflectometry, W Uilhoorn, S J. Callori, David L. Cortie, Hui-Chia Su, Y Khaydukov, Ko-Wei Lin, Frank Klose
Enhanced Magnetism In Field-Cooled [Ni80fe20/Mn]3 Multilayers Studied Using Polarized Neutron Reflectometry, W Uilhoorn, S J. Callori, David L. Cortie, Hui-Chia Su, Y Khaydukov, Ko-Wei Lin, Frank Klose
Australian Institute for Innovative Materials - Papers
Here, the interfacial magnetic coupling in an exchange biased [Ni80Fe20/Mn]3 multilayer system has been studied using polarized neutron re ectometry. Previous results on this system indicate the importance of the coupling between the Fe-Mn and Ni-Mn orbitals at the layer interfaces. Magnetic depth profiles of the multilayer were measured at low temperatures under field-cooled and zero-field-cooled conditions. While no definitive interfacial state was found, a magnetic moment enhancement of roughly 20-30% in the applied field direction was observed throughout the bulk of the NiFe layers in the field-cooled state as compared to the zero-field-cooled measurements. The origin of this enhancement …
Direct Measurements Of Field-Dependent Ordering In A Low-Field Vortex Glass State, Frederick Wells, Alexey V. Pan, X Renshaw Wang, Igor A. Golovchanskiy, Sergey Fedoseev, Hans Hilgenkamp, Anatoly B. Rosenfeld
Direct Measurements Of Field-Dependent Ordering In A Low-Field Vortex Glass State, Frederick Wells, Alexey V. Pan, X Renshaw Wang, Igor A. Golovchanskiy, Sergey Fedoseev, Hans Hilgenkamp, Anatoly B. Rosenfeld
Australian Institute for Innovative Materials - Papers
The variation of topological defect density and hexatic order parameter were measured over a range of micro-Tesla fields in a 2-D superconducting vortex glass. This was achieved through scanning SQUID microscopy of the vortex distribution in YBa2Cu3O7−δ thin films under field-cooled conditions. It was discovered that, although the defect density decreased for increasing magnetic fields, giving the impression of a more lattice-like vortex distribution, the hexatic order parameter also decreased, showing that the distribution was less orientationally ordered.
Manipulation Of Nanoscale Domain Switching Using An Electron Beam With Omnidirectional Electric Field Distribution, Zi-Bin Chen, Xiaolin Wang, Simon Peter Ringer, Xiaozhou Liao
Manipulation Of Nanoscale Domain Switching Using An Electron Beam With Omnidirectional Electric Field Distribution, Zi-Bin Chen, Xiaolin Wang, Simon Peter Ringer, Xiaozhou Liao
Australian Institute for Innovative Materials - Papers
Reversible ferroelectric domain (FD) manipulation with a high spatial resolution is critical for memory storage devices based on thin film ferroelectric materials. FD can be manipulated using techniques that apply heat, mechanical stress, or electric bias. However, these techniques have some drawbacks. Here we propose to use an electron beam with an omnidirectional electric field as a tool for erasable stable ferroelectric nanodomain manipulation. Our results suggest that local accumulation of charges contributes to the local electric field that determines domain configurations.