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Articles 1 - 17 of 17
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Artificial Intelligence And Data Mining: Algorithms And Applications, Jianhong Xia, Fuding Xie, Yong Zhang, Craig Caulfield
Artificial Intelligence And Data Mining: Algorithms And Applications, Jianhong Xia, Fuding Xie, Yong Zhang, Craig Caulfield
Research outputs 2013
Artificial intelligence and data mining techniques have been used in many domains to solve classification, segmentation, association, diagnosis, and prediction problems. The overall aim of this special issue is to open a discussion among researchers actively working on algorithms and applications. The issue covers a wide variety of problems for computational intelligence, machine learning, time series analysis, remote sensing image mining, and pattern recognition. After a rigorous peer review process, 20 papers have been selected from 38 submissions. The accepted papers in this issue addressed the following topics: (i) advanced artificial intelligence and data mining techniques; (ii) computational intelligence in …
Treatment Of Synthetic Urban Runoff Using Manganese Oxide-Coated Sand In The Presence Of Magnetic Field, Maryam Foroughi, Mehdi Khiadani, Mohammad Mehdi Amin, Hamid Reza Pourzamani, Marzieh Vahid Dastjerdi
Treatment Of Synthetic Urban Runoff Using Manganese Oxide-Coated Sand In The Presence Of Magnetic Field, Maryam Foroughi, Mehdi Khiadani, Mohammad Mehdi Amin, Hamid Reza Pourzamani, Marzieh Vahid Dastjerdi
Research outputs 2013
Aims: The purpose of this study was to investigate the efficiency of manganese oxide‑coated sand in the presence of magnetic field to treat urban runoff. Materials and Methods: A flow‑through column having a diameter of 50 mm was filled with coated sand and used to conduct the experiments in this study. Atomic absorption, turbidimeter, pH meter, and spectrophotometer DR5000 were used to measure heavy metals, turbidity, pH, phosphate, and nitrate, respectively. The surface of coated sand was assessed by SEM. Energy dispersive X‑ray analysis (EDAX) analysis was used to determine percentage of sand components. Results: SEM and EDAX analyses confirmed …
Projected Risks To Groundwater-Dependent Terrestrial Vegetation Caused By Changing Climate And Groundwater Abstraction In The Central Perth Basin, Western Australia, Olga Barron, Raymond H. Froend, Geoff Hodgson, Riasat Ali, Warrick Dawes, Phil Davies, Don Macfarlane
Projected Risks To Groundwater-Dependent Terrestrial Vegetation Caused By Changing Climate And Groundwater Abstraction In The Central Perth Basin, Western Australia, Olga Barron, Raymond H. Froend, Geoff Hodgson, Riasat Ali, Warrick Dawes, Phil Davies, Don Macfarlane
Research outputs 2013
The effect of potential climate change on groundwater-dependent vegetation largely depends on the nature of the climate change (drying or wetting) and the level of current ecosystem dependence on groundwater resources. In south-western Australia, climate projections suggest a high likelihood of a warmer and drier climate. The paper examines the potential environmental impacts by 2030 at the regional scale on groundwater-dependent terrestrial vegetation (GDTV) adapted to various watertable depths, on the basis of the combined consideration of groundwater modelling results and the framework for GDTV risk assessment. The methodology was tested for the historical period from 1984 to 2007, allowing …
Meta-Analysis Reveals Complex Marine Biological Responses To The Interactive Effects Of Ocean Acidification And Warming, Ben P. Harvey, Dylan Gwynn-Jones, Philippa J. Moore
Meta-Analysis Reveals Complex Marine Biological Responses To The Interactive Effects Of Ocean Acidification And Warming, Ben P. Harvey, Dylan Gwynn-Jones, Philippa J. Moore
Research outputs 2013
Ocean acidification and warming are considered two of the greatest threats to marine biodiversity, yet the combined effect of these stressors on marine organisms remains largely unclear. Using a meta-analytical approach, we assessed the biological responses of marine organisms to the effects of ocean acidification and warming in isolation and combination. As expected biological responses varied across taxonomic groups, life-history stages, and trophic levels, but importantly, combining stressors generally exhibited a stronger biological (either positive or negative) effect. Using a subset of orthogonal studies, we show that four of five of the biological responses measured (calcification, photosynthesis, reproduction, and survival, …
Mine Closure Of Pit Lakes As Terminal Sinks: Best Available Practice When Options Are Limited?, Clinton D. Mccullough, G. Marchand, J Unseld
Mine Closure Of Pit Lakes As Terminal Sinks: Best Available Practice When Options Are Limited?, Clinton D. Mccullough, G. Marchand, J Unseld
Research outputs 2013
In an arid climate, pit lake evaporation rates can exceed influx rates, causing the lake to function as a hydraulic terminal sink, with water levels in the pit remaining below surrounding groundwater levels. We present case studies from Western Australia for two mines nearing closure. At the first site, modelling indicates that waste dump covers for the potentially acid forming (PAF) material would not be successful over the long term (1,000 years or more). The second site is a case study where PAF management is limited by the current waste rock dump location and suitable cover materials. Pit lake water …
Mobile Games With Intelligence: A Killer Application?, Philip Hingston, Clare Bates Congdon, Graham Kendall
Mobile Games With Intelligence: A Killer Application?, Philip Hingston, Clare Bates Congdon, Graham Kendall
Research outputs 2013
Mobile gaming is an arena full of innovation, with developers exploring new kinds of games, with new kinds of interaction between the mobile device, players, and the connected world that they live in and move through. The mobile gaming world is a perfect playground for AI and CI, generating a maelstrom of data for games that use adaptation, learning and smart content creation. In this paper, we explore this potential killer application for mobile intelligence. We propose combining small, light-weight AI/CI libraries with AI/CI services in the cloud for the heavy lifting. To make our ideas more concrete, we describe …
Urban Runoff Treatment Using Nano-Sized Iron Oxide Coated Sand With And Without Magnetic Field Applying, Mehdi Khiadani, Mansur Zarrabi, Maryam Foroughi
Urban Runoff Treatment Using Nano-Sized Iron Oxide Coated Sand With And Without Magnetic Field Applying, Mehdi Khiadani, Mansur Zarrabi, Maryam Foroughi
Research outputs 2013
Increase of impervious surfaces in urban area followed with increases in runoff volume and peak flow, leads to increase in urban storm water pollution. The polluted runoff has many adverse impacts on human life and environment. For that reason, the aim of this study was to investigate the efficiency of nano iron oxide coated sand with and without magnetic field in treatment of urban runoff. In present work, synthetic urban runoff was treated in continuous separate columns system which was filled with nano iron oxide coated sand with and without magnetic field. Several experimental parameters such as heavy metals, turbidity, …
Application Of Glycyrrhiza Glabra Root As A Novel Adsorbent In The Removal Of Toluene Vapors: Equilibrium, Kinetic, And Thermodynamic Study, Fazel Mohammadi-Moghadam, Mohammad Mehdi Amin,, Mehdi Khiadani, Fariborz Momenbeik, Heshmatollah Nourmoradi, Mohammad Sadegh Hatamipour
Application Of Glycyrrhiza Glabra Root As A Novel Adsorbent In The Removal Of Toluene Vapors: Equilibrium, Kinetic, And Thermodynamic Study, Fazel Mohammadi-Moghadam, Mohammad Mehdi Amin,, Mehdi Khiadani, Fariborz Momenbeik, Heshmatollah Nourmoradi, Mohammad Sadegh Hatamipour
Research outputs 2013
The aim of this paper is to investigate the removal of toluene from gaseous solution through Glycyrrhiza glabra root (GGR) as a waste material. The batch adsorption experiments were conducted at various conditions including contact time, adsorbate concentration, humidity, and temperature. The adsorption capacity was increased by raising the sorbent humidity up to 50 percent. The adsorption of toluene was also increased over contact time by 12 h when the sorbent was saturated. The pseudo-second-order kinetic model and Freundlich model fitted the adsorption data better than other kinetic and isotherm models, respectively. The Dubinin-Radushkevich (D-R) isotherm also showed that the …
Millennial Scale Impact On The Marine Biogeochemical Cycle Of Mercury From Early Mining On The Iberian Peninsula, Oscar Serrano Gras, A. Martinez-Cortizas, M. A. Mateo, H. Biester, R. Bindler
Millennial Scale Impact On The Marine Biogeochemical Cycle Of Mercury From Early Mining On The Iberian Peninsula, Oscar Serrano Gras, A. Martinez-Cortizas, M. A. Mateo, H. Biester, R. Bindler
Research outputs 2013
The high-resolution mercury record of a Posidonia oceanica mat in the northwest Mediterranean provides an unprecedented testimony of changes in environmental mercury (Hg) loading to the coastal marine environment over the past 4315 yr BP. The period reconstructed made it possible to establish tentative preanthropogenic background Hg levels for the area (6.8!1.5 ng g–1 in bulk sediments). A small, but significant, anthropogenic Hg increase was identifiable by ~2500 yr BP, in agreement with the beginning of intense mining in Spain. Changes in the record suggest four major periods of anthropogenic Hg pollution inputs to the Mediterranean: first, during the Roman …
Improving Urban Run-Off Quality Using Iron Oxide Nanoparticles With Magnetic Field, Mehdi Khiadani, Mohammad Mehdi Foroughi, Mohammad Mehdi Amin
Improving Urban Run-Off Quality Using Iron Oxide Nanoparticles With Magnetic Field, Mehdi Khiadani, Mohammad Mehdi Foroughi, Mohammad Mehdi Amin
Research outputs 2013
Run-off from road surfaces is a major source of pollution in the environment. The aim of this study was to investigate the efficiency of nano iron oxide under a magnetic field to improve urban run-off quality. Experiments were conducted in a 50mm diameter column made of Plexiglass in which 20 cm deep stainless steel wool was used as the medium bed. A pair of magnets, each with 0.7 T magnetic charge density, was installed around the column. The particle size of the iron oxide was determined by X-ray diffraction (XRD) analysis. Atomic absorption spectroscopy, spectrophotometer, turbidimeter, and pH meter were …
Changes To Land Tenure And Pastoral Lease Ownership In Western Australia's Central Rangelands: Implications For Co-Operative, Landscape-Scale Management, Eddie J. Van Etten
Changes To Land Tenure And Pastoral Lease Ownership In Western Australia's Central Rangelands: Implications For Co-Operative, Landscape-Scale Management, Eddie J. Van Etten
Research outputs 2013
The majority of arid and semiarid land in the Western Australian pastoral zone has a long history of livestock grazing within an extensive network of predominantly family-held pastoral leases. A variety of different groups have purchased pastoral leases in the last five decades and, for many, making a profit from pastoralism is no longer a priority. For the central rangelands of Western Australia, these groups have included: government agencies, who have purchased some 9% of pastoral leases by area; private conservation organisations (<1% purchased); aboriginal communities and groups (∼7%); and mining companies (∼13%). The purchases of pastoral leases by government agencies was designed to improve the conservation status of arid-zone ecosystems, and is the first step in a process of changing land tenure to a conservation reserve. This paper summarises the extent and other characteristics of these changes in land tenure and ownership of pastoral leases, and explores the implications for land management and conservation, stemming from these changes. It demonstrates that large areas of contiguous land with no or reduced domestic stocking can now be found in many parts of these rangelands, particularly in the Coolgardie, Yalgoo and Pilbara bio-regions, with some leaseholders actively managing land for the conservation of biodiversity and restoring sites degraded through past over-grazing. In some bio-regions, such land covers considerable proportions of sub-catchments, suggesting that broad-scale conservation management and restoration objectives may be realised. It is argued that to fully realise these objectives requires effective communication and co-ordination between land managers, including sharing of ideas, view-points and resources. In particular, mining companies, now major holders of pastoral leases in Western Australia, can play an important role in contributing to and even facilitating such objectives.
A Conceptual Framework For Secure Use Of Mobile Health, Patricia A. Williams, Anthony Maeder
A Conceptual Framework For Secure Use Of Mobile Health, Patricia A. Williams, Anthony Maeder
Research outputs 2013
Mobile health is characterised by its diversity of applicability, in a multifaceted and multidisciplinary healthcare delivery continuum. In an environment of rapid change with the increasing development of mobile health, issues related to security and privacy must be well thought out. The different competing tensions in the development of mobile health from the device technologies and associated regulation, to clinical workflow and patient acceptance, require a framework for security that reflects the complex structure of this emerging field. There are three distinct associated elements that require investigation: technology, clinical, and human factors. Each of these elements consists of multiple aspects …
Usefulness Of Infeasible Solutions In Evolutionary Search: An Empirical And Mathematical Study, Lyndon While, Philip Hingston
Usefulness Of Infeasible Solutions In Evolutionary Search: An Empirical And Mathematical Study, Lyndon While, Philip Hingston
Research outputs 2013
When evolutionary algorithms are used to solve constrained optimization problems, the question arises how best to deal with infeasible solutions in the search space. A recent theoretical analysis of two simple test problems argued that allowing infeasible solutions to persist in the population can either help or hinder the search process, depending on the structure of the fitness landscape. We report new empirical and mathematical analyses that provide a different interpretation of the previous theoretical predictions: that the important effect is on the probability of finding the global optimum, rather than on the time complexity of the algorithm. We also …
Toward A Phen(Omen)Ology Of The Seasons: The Emergence Of The Indigenous Weather Knowledge Project (Iwkp), John Charles Ryan
Toward A Phen(Omen)Ology Of The Seasons: The Emergence Of The Indigenous Weather Knowledge Project (Iwkp), John Charles Ryan
Research outputs 2013
Since European settlement, the Western calendar has insufficiently accounted for the seasonal nuances and multiple temporalities of Australia. Beginning with Tim Entwistle’s recent proposal to revise the four-season Australian norm, this article traces the emergence of the Western calendar in Europe and its institutionalization ‘Down Under.’ With its emphasis on land-based calendars, the Indigenous Weather Knowledge Project (IWKP) is a partnership between Aboriginal communities and the Bureau of Meteorology aimed at preserving and promoting knowledge of the endemic seasons of Australian regions. As the most recent addition to the IWKP, the six-season Nyoongar calendar of the South-West of Western Australia …
Developing An Explanatory Model For The Process Of Online Radicalisation And Terrorism, Robyn Torok
Developing An Explanatory Model For The Process Of Online Radicalisation And Terrorism, Robyn Torok
Research outputs 2013
While the use of the internet and social media as a tool for extremists and terrorists has been well documented, understanding the mechanisms at work has been much more elusive. This paper begins with a grounded theory approach guided by a new theoretical approach to power that utilizes both terrorism cases and extremist social media groups to develop an explanatory model of radicalization. Preliminary hypotheses are developed, explored and refined in order to develop a comprehensive model which is then presented. This model utilizes and applies concepts from social theorist Michel Foucault, including the use of discourse and networked power …
Removal Of Turbidity From Water By Dissolved Air Flotation And Conventional Sedimentation Systems Using Poly Aluminum Chloride As Coagulant, Mehdi Khiadani, Reza Kolivand, Matin Ahooghalandari, Maral Mohajer
Removal Of Turbidity From Water By Dissolved Air Flotation And Conventional Sedimentation Systems Using Poly Aluminum Chloride As Coagulant, Mehdi Khiadani, Reza Kolivand, Matin Ahooghalandari, Maral Mohajer
Research outputs 2013
Flotation is a method in which particles in liquid phase are transported to the surface by air bubbles. In this experimental study, a comparison has been made between conventional sedimentation and dissolved air flotation (DAF) systems to remove turbidity from water. Initially, optimal operational conditions for each system utilized using water artificially turbid with Kaolin. For each system, samples were taken at 20-min interval after the system reached its optimal operational conditions. Parameters, such as turbidity, alkalinity, temperature, pH, and total suspended solids, were measured. For 20, 30–50 and 90–110 NTU, turbidity average removal efficiencies in DAF system were 14.7, …
Testing A Distributed Denial Of Service Defence Mechanism Using Red Teaming, Samaneh Rastegari, Philip Hingston, Chiou-Peng Lam, Murray Brand
Testing A Distributed Denial Of Service Defence Mechanism Using Red Teaming, Samaneh Rastegari, Philip Hingston, Chiou-Peng Lam, Murray Brand
Research outputs 2013
The increased number of security threats against the Internet has made communications more vulnerable to attacks. Despite much research and improvement in network security, the number of denial of service (DoS) attacks has rapidly grown in frequency, severity, and sophistication in recent years. Thus, serious attention needs to be paid to network security. However, to create a secure network that can stay ahead of all threats, detection and response features are real challenges. In this paper, we look at the the interaction between the attacker and the defender in a Red Team/Blue Team exercise. We also propose a quantitative decision …