Elevated arsenic concentrations have been reported in a drinking water and irrigation-supply aquifer of Stuarts Point, New South Wales, Australia. Arsenic occurrence in such aquifers is potentially a major issue due to their common use for high yield domestic and irrigation water supplies. Ten multi-level piezometers were installed to depths of approximately 30 m in the sand and clay aquifer. Sediment samples were collected at specific depths during drilling and analysed for chemical and mineralogical composition, grain size characteristics, potential for arsenic release from solid phase and detailed microscopic features. From this data, a full geomorphic reconstruction allowed the determination of source provenance for the aquifer sediments. The model proposed herein provides evidence that the bulk of the aquifer was deposited under intermittent fluvial and estuarine conditions; and that all sediments derive from the regional arsenicmineralised hinterland. More than 200 groundwater samples were collected and analysed for over 50 variables. The heterogeneity of the aquifer sediments causes redox stratification to occur, which in turn governs arsenic mobility in the groundwater. The bulk of the aquifer is composed of fluvial sand deposits undergoing reductive dissolution of iron oxides. Arsenic adsorbed to iron oxide minerals is released during dissolution but re-adsorbs to other iron oxides present in this part of the aquifer. The deeper, more reducing fluvial sand and estuarine clay groundwaters have undergone complete reductive dissolution of iron oxides resulting in the subsequent mobilisation of arsenic into groundwater. Some of this arsenic has been incorporated into iron sulfide mineral precipitates, forming current arsenian pyrite sinks within the aquifer. The extraction of groundwater from the aquifer for irrigation and drinking water supply induces seawater intrusion of arsenic-rich estuarine water, bringing further dissolved arsenic into the aquifer. A greater understanding of the source, sinks and mobilisation of arsenic in this aquifer contributes to our broad understanding of arsenic in the environment; and allows aquifer specific management procedures and research recommendations to be made. Any coastal or unconsolidated aquifer that has sediments derived from mineralised provenances should consider monitoring for arsenic, and other potentially toxic trace elements, in their groundwater systems.

The Patonga Claystone, a red bed facies in the Narrabeen Group of the Sydney Basin, is one of the most unfavorable rock units in the basin from a geotechnical point of view. This rock unit is composed of sandstone, siltstone, mudstone and claystone. One of the unfavorable characteristics is the low shear strength, which causes instability of cut slopes; another is its slaking-prone behaviour. Numerous measurements of geotechnical properties, along with extensive mineralogical and geochemical determinations, were carried out to identify cause of this slaking behaviour. Key techniques were the use of quantitative X-ray diffractometry for mineralogical analysis, and the determination of slake durability index and related properties to evaluate the slaking behaviour under both standard and more extended conditions. Standard (two cycle) slake durability test results indicate a range from low to high slake durability index values, with some mudstone samples having very low durability and some sandstones having very high slake durability indices. Jar slake test results indicate that the rock samples break rapidly and/or develop several fractures (Ij = 4) in an as-received state, but degrade to a pile of flakes or mud (Ij = 1) if the samples are oven dried before testing. The results for jar slake testing of oven-dried material are comparable, for individual samples, to those obtained from the more comprehensive slake durability tests. The mineralogy of the samples was evaluated by quantitative X-ray diffraction techniques using the Rietveld-based Siroquant processing system. Comparison to independent chemical data show a generally good level of agreement, suggesting that the mineralogical analysis results are consistent with the chemical composition of the individual rock samples. Good correlations were also obtained between clay mineralogy determined from orientedaggregate XRD analysis of the &lt2 micron fraction and the results from powder diffractometry and Siroquant analysis of the whole-rock samples. Evaluation of the slake durability characteristics and other geotechnical properties in relation to the quantitative mineralogy suggests that quartz and feldspar form a rigid framework in the rocks that resists the disruptive pressures that cause slaking. Expansion of the clay minerals by various processes, including the incorporation of water into the interlayer spaces of illite/smectite as well as changes in pore pressures associated with entry of water into micro-fractures in the clay matrix, are thought to produce the disruptions that cause slaking and degradation. An abundant clay matrix also reduces the strength of the rock materials, probably because of the less rigid nature of the clay minerals relative to the quartz and feldspar particles. As well as the mineralogy, the loss on ignition (LOI) and water absorption percentage were found to provide good indicators of longer-term slaking behaviour. Both properties are also related to the overall clay content. Rock samples with water absorption values of &lt10, 10-15 and &gt15% behave as highly durable, intermediate and less durable materials respectively. Rocks with LOI values of greater than 5% by weight behave as less durable rock materials, at least for the strata encompassed by the present study. The water absorption and LOI values were also used to develop a predictive model of slake durability characteristics for the different rock materials in the Patonga Claystone, providing a relatively simple basis for predicting longer-term stability in a range of geotechnical studies.

The Patonga Claystone, a red bed facies in the Narrabeen Group of the Sydney Basin, is one of the most unfavorable rock units in the basin from a geotechnical point of view. This rock unit is composed of sandstone, siltstone, mudstone and claystone. One of the unfavorable characteristics is the low shear strength, which causes instability of cut slopes; another is its slaking-prone behaviour. Numerous measurements of geotechnical properties, along with extensive mineralogical and geochemical determinations, were carried out to identify cause of this slaking behaviour. Key techniques were the use of quantitative X-ray diffractometry for mineralogical analysis, and the determination of slake durability index and related properties to evaluate the slaking behaviour under both standard and more extended conditions. Standard (two cycle) slake durability test results indicate a range from low to high slake durability index values, with some mudstone samples having very low durability and some sandstones having very high slake durability indices. Jar slake test results indicate that the rock samples break rapidly and/or develop several fractures (Ij = 4) in an as-received state, but degrade to a pile of flakes or mud (Ij = 1) if the samples are oven dried before testing. The results for jar slake testing of oven-dried material are comparable, for individual samples, to those obtained from the more comprehensive slake durability tests. The mineralogy of the samples was evaluated by quantitative X-ray diffraction techniques using the Rietveld-based Siroquant processing system. Comparison to independent chemical data show a generally good level of agreement, suggesting that the mineralogical analysis results are consistent with the chemical composition of the individual rock samples. Good correlations were also obtained between clay mineralogy determined from orientedaggregate XRD analysis of the &lt2 micron fraction and the results from powder diffractometry and Siroquant analysis of the whole-rock samples. Evaluation of the slake durability characteristics and other geotechnical properties in relation to the quantitative mineralogy suggests that quartz and feldspar form a rigid framework in the rocks that resists the disruptive pressures that cause slaking. Expansion of the clay minerals by various processes, including the incorporation of water into the interlayer spaces of illite/smectite as well as changes in pore pressures associated with entry of water into micro-fractures in the clay matrix, are thought to produce the disruptions that cause slaking and degradation. An abundant clay matrix also reduces the strength of the rock materials, probably because of the less rigid nature of the clay minerals relative to the quartz and feldspar particles. As well as the mineralogy, the loss on ignition (LOI) and water absorption percentage were found to provide good indicators of longer-term slaking behaviour. Both properties are also related to the overall clay content. Rock samples with water absorption values of &lt10, 10-15 and &gt15% behave as highly durable, intermediate and less durable materials respectively. Rocks with LOI values of greater than 5% by weight behave as less durable rock materials, at least for the strata encompassed by the present study. The water absorption and LOI values were also used to develop a predictive model of slake durability characteristics for the different rock materials in the Patonga Claystone, providing a relatively simple basis for predicting longer-term stability in a range of geotechnical studies.

Master of Architecture / The period under consideration saw the growth and fruition of a radical approach to architectural design in the Government Architect's Branch of the New South Wales Public Works Department. High aesthetic standards were set: the application of these standards in an atmosphere of enthusiastic dedication produced a new, vital architectural expression for the public buildings of New South Wales. The quality of the Government Architect's work brought the Branch to the forefront of the architectural profession, whence it exerted a beneficial influence on many private practitioners. E.H. Farmer, the Government Architect of the period, gained the high respect of his peers and in 1972 he was awarded the R.A.I.A.'s Gold Medal - the highest honour which can be bestowed on a member. The early chapters of this study describe, in broad chronological order, the developments which took place in the Government Architect's Branch. Mention is also made of the influence which many leading architects, as well as other professionals, had on the Branch's design work. In later chapters the buildings designed by the Branch are classified into broad use-types and each type is then examined in chronological order. While this method of analysis necessitates some back-tracking and repetition, it provides a better understanding of the evolution of the various building types than would be provided by a broader survey. The appendices include a chronological list of significant events, in precis form, for convenient reference. Apart from a few short papers on specialised subjects, there has been no comprehensive documentation of the history of the Government Architect's Branch during the period being examined. Consequently the story of the Branch's development has been pieced together from interviews with many people who were members of the Government Architect's Branch during this period. Some accounts of events have appeared conflicting. It is natural that individual comment may be unintentionally biased. Every effort has been made by the author to present an accurate and balanced assessment. E.H. Farmer delivered the Hook Memorial Address on 11th May, 1973. In the course of this address the beliefs which contributed to his leadership of the Branch were succinctly revealed: "...if the voioe of the architect goes unheeded, humanity is that much closer to the abyss."

Thesis (Ph.D.)--University of Technology, Sydney, 2005.

Thesis (Ph. D.)--University of Sydney, 1996. / Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of History, Faculty of Arts. Degree awarded 1996; thesis submitted 1995. Includes bibliography. Also available in print form.

Thesis (PH. D.)--Miami University, Dept. of Political Science, 2005. / Title from second page of PDF document. Document formatted into pages; contains [2], vii, 101 p. Includes bibliographical references (p. 94-99).

Faculty of Education. Includes bibliographical references (leaves 331-367).

The objective of this diploma thesis is to render a comprehensive analysis of licence contracts in two countries - the Czech Republic and England and Wales. The effort to highlight differences between the two scrutinized jurisdictions and related criticism are the most important methods applied in this work and, hopefully, the most recognizable benefits of it. The thesis consists of a short introduction, followed by four descriptive chapters and author's subjective conclusions. The introductory part presents methods of research used throughout the work and implicitly hints what can the reader except when studying this diploma thesis. The first chapter splits into two mutually linked subchapters. The first one defines the very term licence, its etymology and classification. The following subchapter describes general characteristics of intellectual property, a crucial topic to licence contracts and thus indirectly to this thesis. This thesis promises a comparison of two legal systems and the second chapter fulfils this aim. Consisting of two additionally divided subchapters, the author engages in an analysis of the copyright and patent law respectively. Both examined intellectual property rights are looked at via optics of Czech, British and European intellectual property law. After being...

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