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Articles 1 - 9 of 9
Full-Text Articles in Physical Sciences and Mathematics
Evaluating The Impact Of Peer Review And Participation Awareness In An Online Collaborative Document Authoring Environment, Greg Baatard
Evaluating The Impact Of Peer Review And Participation Awareness In An Online Collaborative Document Authoring Environment, Greg Baatard
Theses : Honours
Online Learning Environments (OLEs) have been widely adopted by higher education facilities, offering distance education with the potential to support the social and collaborative aspects deemed crucial to modern constructivist pedagogy. Groupware, a form of software which aims to facilitate group work, has been the subject of much research, from both educational and enterprise perspectives. This research introduced Reportal, an online groupware system designed to facilitate the collaborative authoring of a document. Reportal's peer review and participation awareness features were the focus of this research, and their impact was measured against the elements of online collaboration, a typology established by …
The Challenges Of Itil Implementations, Jason Gray
The Challenges Of Itil Implementations, Jason Gray
Theses : Honours
Originating from the UK, the IT Infrastructure Library (ITIL) is an IT Service Management framework whose adoption is rapidly spreading throughout Canada, Netherlands, South Africa, India, USA, and Australia. Promoted as a collection of "Best Practices" in IT service management, ITIL is gaining a reputation as a "silver bullet" to IT Service Management woes and is now .gaining popularity amongst IT vendors and leaders of best practices worldwide. Increased IT productivity, IT accountability, increased compliance and reduced IT costs, are just some of the promised list of benefits. More and more organisations are plam1ing to embark on ITIL implementations as …
Radio Frequency Enabled Soil Redox Potential Sensor Networks, Chris Holme
Radio Frequency Enabled Soil Redox Potential Sensor Networks, Chris Holme
Theses : Honours
There is a need for' cost effective tools and data collection methods for field measurements; to increase both productivity and volumes of collected data in the quest for enhanced understanding and management of environmental systems. To such end, various technologies that may be combined into a cost effective soil redox sensor network were explored. Suitability of each technology, as a component of said network was evaluated. A prototype soil redox sensor network was constructed and basic laboratory and field testing was completed. Results indicate that the prototype sensor network functions correctly within bounds. Both laboratory and field testing show that …
The Determination Of Probes For The Indirect Detection Of Anions In Capillary Zone Electrophoresis Using Light Emitting Diode Detection, Peter Ashley Balding
The Determination Of Probes For The Indirect Detection Of Anions In Capillary Zone Electrophoresis Using Light Emitting Diode Detection, Peter Ashley Balding
Theses : Honours
This study investigated the potential of a number of compounds to act as probes for the indirect detection of inorganic and organic anions separated by capillary zone electrophoresis and using light emitting diodes (LED) as the light source. Desirable characteristics of the probe anion included: high molar absorptivity, moderate to high electrophoretic mobility, and having a wavelength of maximum absorbance near the maximum emission wavelength of a LED. A preliminary study led to the evaluation of eleven possible compounds. Two of these, p-nitrophenol and 4-hydroxy-3,5-dinitrobenzoic acid were selected for further study as they fulfilled the criteria previously mentioned. The optimised …
Automated Photo-Identification Of Cetaceans : An Integrated Software Solution, Daniel Griggs
Automated Photo-Identification Of Cetaceans : An Integrated Software Solution, Daniel Griggs
Theses : Honours
This study investigates current techniques used for automated photo-identification of cetaceans (i.e. dolphins and whales). The primary focus constitutes various techniques that can be applied to identify and extract dorsal fins from digital photographs. A comprehensive analysis of these techniques demonstrates the most effective software solution. To further support this analysis, four prototypes are developed to demonstrate the effectiveness of each technique in a practical environment. The analysis bases its final conclusions on test results generated from these prototype software examples. Final conclusions provide recommendations for an effective, accurate, and practical software solution. This software solution allows dorsal fins to …
An Attitude And Perception Study Of Wireless Network Usage In Home Environments, Patryk Szewczyk
An Attitude And Perception Study Of Wireless Network Usage In Home Environments, Patryk Szewczyk
Theses : Honours
Research on the use of 802.11 wireless networking and wireless security has in the past focused predominantly on corporations who generally have access to resources specifically allocated to computer and network security. Research has also focused on identifying the flaws in wireless network security, and developing stronger and safer methods which may be incorporated. To date there has been a lack of research into determining what the individual at home perceives towards wireless security. As broadband Internet connections are now predominantly chosen, the amount of available bandwidth open to exploitation is significantly higher than the now becoming obsolete dialup connection. …
Use Of A Weighted Matching Algorithm To Sequence Clusters In Spatial Join Processing, Husen Husen
Use Of A Weighted Matching Algorithm To Sequence Clusters In Spatial Join Processing, Husen Husen
Theses : Honours
One of the most expensive operations in a spatial database is spatial join processing. This study focuses on how to improve the performance of such processing. The main objective is to reduce the Input/Output (I/O) cost of the spatial join process by using a technique called cluster-scheduling. Generally, the spatial join is processed in two steps, namely filtering and refinement. The cluster-scheduling technique is performed after the filtering step and before the refinement step and is part of the housekeeping phase. The key point of this technique is to realise order wherein two consecutive clusters in the sequence have maximal …
Methods For The Estimation Of Missing Values In Time Series, David S. Fung
Methods For The Estimation Of Missing Values In Time Series, David S. Fung
Theses: Doctorates and Masters
Time Series is a sequential set of data measured over time. Examples of time series arise in a variety of areas, ranging from engineering to economics. The analysis of time series data constitutes an important area of statistics. Since, the data are records taken through time, missing observations in time series data are very common. This occurs because an observation may not be made at a particular time owing to faulty equipment, lost records, or a mistake, which cannot be rectified until later. When one or more observations are missing it may be necessary to estimate the model and also …
Sources Of Nitrogen And Phosphorus In Stormwater Drainage From Established Residential Areas And Options For Improved Management, Surasithe Khwanboonbumpen
Sources Of Nitrogen And Phosphorus In Stormwater Drainage From Established Residential Areas And Options For Improved Management, Surasithe Khwanboonbumpen
Theses: Doctorates and Masters
From early April 2002 to June 2003, a study was conducted at Wanneroo and Bannister Creek in Perth's metropolitan area (Western Australia), aiming to quantify major sources of nitrogen (N) and phosphorus (P) entering urban residential catchments on two of the major dunal systems. The export of N and P from these catchments in stormwater discharge was measured, allowing investigation of some of the key pathways through which N and P enter the drainage network from the catchment. This information was then used to recommend catchment management approaches to reduce nutrient discharge into stormwater.