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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 21 to 30 of 462 (0.038 seconds)| 21 |
The release of NOâ†x during the combustion of coals, E.F.R. chars and model carbonsBrown, Stephen D. January 1994 (has links)
No description available.
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Effect of foliar applied elemental sulphur upon the growth, development and yield of sugar beetMartin, A. D. E. January 1990 (has links)
No description available.
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Dimethylsulphoxide in seawaterHatton, Angela January 1995 (has links)
No description available.
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Photolithotrophic thiosulphate oxidation in a purple 'non-sulphur' bacteriumLittle, Philip John January 2000 (has links)
No description available.
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Biogenic sulphur in Antarctic ice coresPasteur, Elizabeth January 1996 (has links)
No description available.
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The distribution and mobilisation of sulphur and nitrogen in leaves of Triticum aestivum approaching senescenceBates, Nicholas John January 1998 (has links)
No description available.
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Characterisation of microbial release of available sulphur from soil to plantsBanerjee, Manas Ranjan January 1992 (has links)
The discovery of sulphur-deficient agricultural soils has focussed concern on the dynamics of sulphur transformations in soils and on the important role of the soil microbial population in mineralising organic sulphur to forms more available to plants. This thesis reports a study carried out to investigate the dynamics of supply of plant available sulphur from soils and includes development of a method for determination of microbial biomass S, comparison of a perfusion system with a plant bioassay to assess soil S-supply, characterisation of a fertilizer S budget for a crop-soil system and assessment of the role of VA mycorrhizas in plant S uptake. The first experiment was carried out to investigate the factors involved in determination of microbial biomass S in soil in order to develop a more reliable assay. Biomass S-concentrations were determined by chloroform fumigation/direct extraction (with determination of the Ks calibration constant using 35S labelled microorganisms). The effects of period of fumigation, the need for chloroform evacuation, the type of extractant, and the time of extraction were investigated. The optimium values for biomass-S were obtained using a 5 day fumigation period without chloroform evacuation (use of 35S labelled microorganisms demonstrated that there is a vacuum sensitive non-biomass S pool), with CaC12 as an extractant over a 1 h extraction period. The second experiment consisted of a simple, open perfusion system for studying the S-supplying capacity of soils. A range of soils were perfused at frequent intervals and the leachates analysed for inorganic and total sulphur. Results were compared with plant S-offtake from the same soils. Although greater amounts of sulphur were removed in the perfusion system, data from the techniques correlated strongly, suggesting the perfusion system can be effectively used to estimate the S-supplying capacity of soils.
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Sulphur removal from coal or from products? Is prevention better than cure - a technical review of the prevention optionKoper, Edward Ludovicus 11 August 2008 (has links)
Abstract will not load on to DSpace
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Metabolism of sulphate in wheatAscano, Annabelle Francisco. January 1978 (has links) (PDF)
No description available.
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Sulphate metabolism in normal and cancerous tissueMeaney, Maxwell Francis. January 1972 (has links) (PDF)
No description available.
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