https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Effect of moisture content and compaction on the corrosion of mild steel buried in clay soils https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46761 Wed 30 Nov 2022 09:44:28 AEDT ]]> Microbial biobanking - cyanobacteria-rich topsoil facilitates mine rehabilitation https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45002 Symploca, Scytonema, Porphyrosiphon, Brasilonema, Nostoc, and Gloeocapsa comprised more than 50 % of the species richness at each site and 61 % of the total community richness. In the first study of its kind, we have described the response of cyanobacteria to topsoil stockpiling at various depths and ages. Cyanobacteria are moderately resilient to stockpiling at depth and over time, with average species richness greatest in the top 10 cm of the stockpiles of all ages and more viable within the first 6 weeks, indicating potential for biocrust re-establishment. In general, the resilience of cyanobacteria to burial in topsoil stockpiles in both the short and long term was significant; however, in an arid environment recolonisation and community diversity could be impeded by drought. Biocrust re-establishment during mine rehabilitation relies on the role of cyanobacteria as a means of early soil stabilisation. At J–A mine operations do not threaten the survival of any of the organisms we studied. Increased cyanobacterial biomass is likely to be a good indicator and reliable metric for the re-establishment of soil microprocesses.]]> Wed 26 Oct 2022 15:14:50 AEDT ]]> Determining the potential impacts of fire and different land uses on splash erosion https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48026 Wed 22 Mar 2023 18:18:25 AEDT ]]> Bi-modal trending for corrosion loss of steels buried in soils https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:32568 Wed 20 Jun 2018 14:18:27 AEST ]]> Characterization of biochars derived from pyrolysis of biomass and calcium oxide mixtures https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:37826 Wed 12 May 2021 09:25:37 AEST ]]> On the application of high-order elements in large deformation problems of geomechanics https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:17188 Wed 11 Apr 2018 17:23:11 AEST ]]> Numerical analysis of a penetrometer free-falling into a non-uniform soil layer https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:17185 Wed 11 Apr 2018 17:12:17 AEST ]]> Modelling ploughing and cutting processes in soils https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:17798 Wed 11 Apr 2018 10:03:33 AEST ]]> Characterisation and fate of microplastics in soils and their toxicity to the earthworms https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:51332 Wed 06 Mar 2024 14:58:08 AEDT ]]> A reinterpretation of the Romanoff NBS data for corrosion of steels in soils https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:32569 Wed 06 Mar 2019 13:30:07 AEDT ]]> Advancing Soil Health: Challenges and Opportunities in Integrating Digital Imaging, Spectroscopy, and Machine Learning for Bioindicator Analysis https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:55521 Wed 05 Jun 2024 09:02:03 AEST ]]> Further new interpretations of the corrosion of ferrous metals in soils https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:35572 Wed 04 Sep 2019 10:57:47 AEST ]]> Analysis of buried oil and gas pipelines crossing active faults: Revisiting pipe-ground interaction https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43545 Tue 27 Sep 2022 15:41:30 AEST ]]> Numerical study of rate effects in cone penetration test https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:21463 Tue 24 Aug 2021 14:29:37 AEST ]]> On the common criticism of initial moisture content bias in the shrink-swell test https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42006 Tue 16 Aug 2022 16:51:19 AEST ]]> Comparison of Single- and Sequential-Solvent Extractions of Total Extractable Benzo[a]pyrene Fractions in Contrasting Soils https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43101 40%) amounts of nonextractable residues. The cumulative amounts of B[a]P extracted in each soil by single- and sequential-solvent extractions were similar (p > 0.05) at each aging period, which indicated access to similar B[a]P fractions in soil by both solvent extractions. The similarities in the amounts of B[a]P nonextractable residues recovered by MeKOH from pre-extracted soils, through either of the extraction methods, confirms that the total extractable B[a]P fractions from both methods are similar.]]> Tue 13 Sep 2022 12:40:51 AEST ]]> Probabilistic stability analysis of slopes by conditional random fields https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:32511 Tue 12 Jun 2018 15:33:14 AEST ]]> Earthworm – PAHs Interactions with special reference to Gut flora https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:55440 Thu 30 May 2024 15:41:44 AEST ]]> A time series approach to inferring groundwater recharge using the water table fluctuation method https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:160 Thu 25 Jul 2013 09:09:41 AEST ]]> Sorption of PFOS in 114 well-characterized tropical and temperate soils: application of multivariate and artificial neural network analyses https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39790 d) ranged from 5 to 229 mL/g (median: 28 mL/g), with 63% of the Fijian soils and 35% of the Australian soils showing Kd values that exceeded the observed median Kd. Multiple linear regression showed that TOC, amorphous aluminum and iron oxides contents, anion exchange capacity, pH, and silt content, jointly explained about 53% of the variance in PFOS Kd in soils. Variable charge soils with net positive surface charges, and moderate to elevated TOC content, generally displayed enhanced PFOS sorption than in temperate or tropical soils with TOC as the only sorbent phase, especially at acidic pH ranges. For the first time, two artificial neural networks were developed to predict the measured PFOS Kd (R2 = 0.80) in the soils. Overall, both TOC and surface charge characteristics of soils are important for describing PFOS sorption.]]> Thu 23 Jun 2022 14:06:17 AEST ]]> A critical prospective analysis of the potential toxicity of trace element regulation limits in soils worldwide: are they protective concerning health risk assessment? - A review https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:35490 i, accounting for human intake over the maximum allowable oral reference dose for that same TE), indicating that its risk tends to be underestimated. Other TE limits, such as those of Cd, Cu, Ni, Pb, and Zn typically result in low HQi, meaning that limits in their cases are rather overprotective. Our approach reveals the need of reducing diversity in regulation limits by drafting soil legislations of worldwide validity, since risks are common across countries. We suggest that new directions should strategically tend to (a) reduce limits of TEs with underestimated contribution to health risk (such as As), (b) cautiously increase limits of TEs that currently cause minor health risks, (c) quantify TE risks associated with uptake to edible plants and potable water, and (d) consider multi-element contamination cases, where risks are cumulatively enhanced due to TE synergism.]]> Thu 14 Apr 2022 10:57:56 AEST ]]> One-dimensional soil moisture profile retrieval by assimilation of near-surface measurements: a simplified soil moisture model and field application https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:862 Sat 24 Mar 2018 08:31:31 AEDT ]]> Dynamic analysis of free-falling penetrometers in soil deposits https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:11990 Sat 24 Mar 2018 08:09:40 AEDT ]]> Direct computation of shakedown loads via incremental elastoplastic analysis https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29271 Sat 24 Mar 2018 07:39:16 AEDT ]]> Romanoff's soil corrosion data deconstructed https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:28670 Sat 24 Mar 2018 07:37:11 AEDT ]]> Factors involved in the long-term corrosion of buried cast iron https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29282 Sat 24 Mar 2018 07:32:52 AEDT ]]> Analysis of dynamic loading and penetration of soils - application to site investigation and ground improvement https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:23560 Sat 24 Mar 2018 07:14:11 AEDT ]]> Assessment of spatial models using ground point data: soil matrix and radiometric approach https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:23591 40K concentration of the soil samples determined. Relationships between the field 40K and NARM 40K were investigated using a digital elevation model, the national soil atlas model and the national geology model. Our results showed that the NARM and field data are correlated and that this correlation extends across changing soil types and geology. A complex relationship with topographical features was also determined which needs further investigation.]]> Sat 24 Mar 2018 07:13:22 AEDT ]]> Interaction effects of As, Cd and Pb on their respective bioaccessibility with time in co-contaminated soils assessed by the Unified BARGE Method https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:32295 Mon 21 May 2018 15:30:58 AEST ]]> Enhanced Recovery of Nonextractable Benzo[a]pyrene Residues in Contrasting Soils Using Exhaustive Methanolic and Nonmethanolic Alkaline Treatments https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:44583 0.05). Approximately 40% of B[a]P NERs in the sandy-clay-loam organic matter-rich soil was recovered by the exhaustive alkaline extractions after 180 d of aging, compared to only 10% using conventional methanolic saponification. However, the amounts of B[a]P NERs recovered depend on soil properties and the amounts of NERs in soils. A significant correlation (R2 = 0.69, p < 0.001) was also observed between the amounts of B[a]P recovered by each of the seven alkaline extractions in the contrasting soils and corresponding NERs at 180 d of aging, indicating a potential association warranting further investigations. Extraction techniques that estimate the amounts of PAH NERs recoverable in soil can help give a better understanding of the fate of NERs in soil.]]> Mon 17 Oct 2022 11:44:39 AEDT ]]> Empirical models for long-term localised corrosion of cast iron pipes buried in soils https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46577 Fri 25 Nov 2022 13:18:28 AEDT ]]> Cadmium immobilization in the rhizosphere and plant cellular detoxification: role of plant-growth-promoting rhizobacteria as a sustainable solution https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:41088 Fri 22 Jul 2022 17:11:19 AEST ]]> Use of Routine Soil Tests to Estimate Pb Bioaccessibility https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42224 Fri 19 Aug 2022 11:28:25 AEST ]]> Models for Prediction of Long-Term Corrosion of Cast Iron Water Mains https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:53047 Fri 17 Nov 2023 11:56:51 AEDT ]]> Time-Dependent Remobilisation of Non-Extractable Benzo[a]pyrene Residues in Contrasting Soils: Effects of Aging, Spiked Concentration, and Soil Properties https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:41827 Fri 12 Aug 2022 12:52:20 AEST ]]> Movement and Fate of 2,4-D in Urban Soils: A Potential Environmental Health Concern https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:41795 Fri 12 Aug 2022 12:24:33 AEST ]]>