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    The effect of the pH on the toxicity and accumulation of Cu and Zn in a tropical freshwater alga (Chlorella sp)
    (Royal Australian Chemical Institute & Australasian Society of Ecotoxicology, 2002-07-21) Wilde, KL; Markich, SJ; Stauber, JL; Franklin, NM
    As part of a larger study to test the biotic ligand model (BLM) with unicellular algae, the effect of pH (5.5, 6.5 and 7.5) on the toxicity and accumulation of Cu and Zn in the freshwater alga Chorella sp was investigated.
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    Management and quantification of the impact of acid rock drainage
    (Royal Australian Chemical Institute & Australasian Society of Ecotoxicology, 2002-07-21) Brown, PL
    Acid rock drainage from sulfidic waste piles is recognised as one of the most significant problems facing the global mining industry, costing the industry billions of dollars annually. Acid drainage affects all sectors of the industry including coal, precious metals, base metals, iron ore and uranium. A number of government and industry initiatives have been formed to combat the problem. These initiatives have focused on the development of scientifically-based technologies for the management of wastes, resulting in a reduction (or minimisation) of the potential for ecological / environmental risk. This presentation will outline some of the best practice tools and techniques developed to quantify and manage acid rock drainage. It will provide an overview of the quantification of the effectiveness of control measures, determination of the level of acceptance ecological impact and appropriate means of measuring this in the field, what is required for prediction of impact and effluent quality and over what time frame realistic predictions can be made. It will also examine the implementation of management strategies through the mining life cycle. © The Authors.
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    MECA SENS 2013 : 7th International Conference on Mechanical Stress Evaluation by Neutron and Synchrotron Radiation
    (Australian Nuclear Science and Technology Organisation, 2013-09-10) International Conference on Mechanical Stress Evaluation; Australian Nuclear Science and Technology Organisation
    The 7th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECASENS) to be held at the Crowne Plaza Hotel in Coogee beach. The biennial conference is essential for those concerned with the mechanical stress evaluation of materials and components using neutron and synchrotron radiation. MECASENS also gives an interesting "snap-shot" of progress in the field and lively discussions accompanied many of the papers. The wide array of oral and poster presentations focussed on the following key topics: Stress evaluation using neutrons, synchrotron radiation and X-rays; Development of measurement methods and instrumentation; Material processing and residual stresses; The influence of residual stresses on the physical and mechanical properties of materials and components; Measurement and assessment of residual micro-stresses and intergranular stresses; Residual strains and stresses in complex materials (e.g. multi-phase and biomaterials); Industrial applications of residual stress analysis using neutrons, synchrotron radiation and X-rays; and Complementary techniques for residual stress measurements.
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    Synroc derivatives for the Hanford waste remediation task
    (Materials Research Society, 1997) Vance, ER; Hart, KP; Day, RA; Carter, ML; Hambley, M; Blackford, MG; Begg, BD
    Three wt% each of Cs and Tc were mixed with the standard Synroc precursor and the ceramic was formed by hot-pressing. Attempts were made to incorporate the Tc as either metal or Tc 4+, using different redox conditions in processing. Volatile losses of Tc during calcination were < 0.1% in all cases. Short-term Tc leach rates when the Tc was present as a metal alloy were in the order of 10−4 g/m /d at 90°C with frequently changed water, and decreased with increasing leaching time. The valence of the Tc was monitored by X-ray absorption spectroscopy at the drying and calcination stages of the production. The general viability of Synroc/glass composites for immobilising the Hanford HLW sludges is further demonstrated by using further refinements of additive schemes for the inactive “All-blend” formulation and initial studies using the U-containing “All-blend” waste formulation. © Materials Research Society 1997
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    New 36‐element pixel array detector at the ANBF — choosing the right detector for your beamline
    (American Insitute of Physics, 2007-01-19) Foran, GJ; Hester, JR; Garrett. RF; Dressler. P; Fonne, C; Beau, JO; Lampert, MO
    The Pixel Array Detector for XAFS data collection recently commissioned at the Australian National Beamline Facility is well matched to a busy second‐generation bending magnet source where both high and low‐flux applications are routinely encountered. In combination with the digital counting chain, throughput has improved by approximately a factor of 5. Detector resolution deteriorates slightly at high count rates. © 2007 American Institute of Physics.