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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 41 for “"water analysis"”.
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A study of water analysis
Made available in DSpace on 2017-11-30T22:11:08Z (GMT). No. of bitstreams: 2 5959685.pdf: 3948019 bytes, checksum: e62a90d274926ea5ee3d354b0ee4498a (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1899
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Polarography applied to nitrate determination in sanitary water analysis
… effect on the polarographic method of nitrate analysis of certain chemicals commonly employed in the water purification process. Chemicals tested consisted of coagulants, a disinfectant, and an algaecide. A. “synthetic” water of known chemical consistency was used for diluting purposes. The …
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The application of electro-analytical techniques to sea water analysis
… tenths of the earth's surface is occupied by sea water containing roughly three and a half per cent salts in solution. It is therefore not surprising that many sciences are applied to the study of this medium and an understanding of the chemistry of the sea is basic to all the other studies. A …
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Ground Water Analysis Using Computer Simulation of the Electrical Circuit Analogy
Made available in DSpace on 2017-07-06T18:49:07Z (GMT). No. of bitstreams: 3 Kuelske_Kevin_J_MS.pdf: 48030156 bytes, checksum: 186b595944122e5cb576ac3d5d0a138b (MD5) Kuelske_Kevin_J_MS_ABS.pdf: 328586 bytes, checksum: afb865fae8f295eaf2ca2c53381a97a6 (MD5) license.txt: 4813 bytes, checksum: …
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Development of micro-scale and automated membrane extraction systems for water analysis
Monitoring of trace level contaminants in water involves the extraction and enrichment of analytes. Over the years several techniques have been developed for this purpose. Currently there is an urgent need for the development of micro-scale extraction techniques that can lead to simple, fast trace …
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Lead in drinking water : analysis of a compliance project for NTNC schools
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1990.
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A study of the presumptive test in water analysis, comparing standard lactose broth with Schreiner's modification using basic fuchsin
Thesis (M.A.)--University of Kansas, Bacteriology, 1928.
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Environmental Justice in Virginia’ s Rural Drinking Water: Analysis of Nitrate Concentrations and Bacteria Prevalence in the Household Wells of Augusta and Louisa County Residents
… have equal access to uncontaminated drinking water by socio-economic status. Statistical associations were developed with the total value of each residence based on county tax assessment data as the independent variable to explain levels of nitrate, the presence of bacteria (total coliform and …
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Use of GIS to Identify and Delineate Areas of Fluoride, Sulfate, Chloride, and Nitrate Levels in the Woodbine Aquifer, North Central Texas, in the 1950s, 1960s, 1970s, 1980s, and 1990s
… chloride, and nitrate in the Woodbine Aquifer. Water analysis data were obtained from the TWDB from the 1950s to 1990s covering 9 counties. 1990s land use data were obtained to determine the relationship with each contaminant. Spearman's rank correlation coefficients and Kruskal-Wallis tests …
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Development and Application of Rapid Methods for the Analysis of Selected Pollutants in Environmental Aquatic Matrices
… of specific pesticides which are listed on the Water Framework Directive (2000) as priority substances for eradication from aquatic environments. <br/><br/>Twelve target analytes comprising of triazine herbicides, phenylureas and chloroacetanilides were determined in samples of river water from …
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Flow study of the nozzle region of the space shuttle solid rocket motor
… SRM test firings. The SRM was simulated by water flow through a plexiglas model mounted in a water tunnel. Dye and hydrogen bubble visualization techniques along with hot water analysis methods were used to detect flow patterns. Visual results recorded on video tape indicated strong …
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The Search For Volatile Biogenic Emissions In Geothermal Areas
… were detected with FTIR is presented. An analysis of chemicals seen in the infrared spectra, such as CO2, is given in the context of their possible biological origin. The results of the CO2 analysis indicate that the naturally occurring biomats are more complex than laboratory cultures and …
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The Search For Volatile Biogenic Emissions In Geothermal Areas
… were detected with FTIR is presented. An analysis of chemicals seen in the infrared spectra, such as CO2, is given in the context of their possible biological origin. The results of the CO2 analysis indicate that the naturally occurring biomats are more complex than laboratory cultures and …
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Do wetland characteristics, specifically plant communities, surface water, and soils play a significant role in whooping crane (<i>grus americana</i>) site selection?
… soils, plant community structure and surface water quality were analyzed throughout nineteen established nest sites and twenty non-nesting wetland sites. Due to past fire management throughout the refuge, the effects of fire history were also investigated by comparing burned (n=17) and …
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Development of an LCMS Analytical Method with Applicability to Determination of Trace Level Explosives in Environmental Waters
… way to extraction of these chemicals from water samples and their analysis using advanced separation technology: LC-MS/MS Shimadzu Prominence 8050 and AB Sciex Trap 4000 LC-MS/MS. Different extraction methods will be proposed, along with chromatographic and mass spectroscopy method …
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Rotation-electronic interaction in the 3p-complex Rydberg state of water
An energy theory is formulated for the rotational energy levels in a p-complex Rydberg state of an asymmetric top molecule of symmetry C2v. The effective Hamiltonian used consists of the usual rigid rotor Hamiltonian augmented with terms representing electronic spin and orbital angular momentum …
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Ocean sensors - for marine environmental monitoring
… the chemical and physical properties of sea water, but many are expensive and too large to be used on mass deployed vehicles such as the Argo float and submersed gliders. Marine mammal and fish tags require further sensor miniaturisation. This thesis describes the development of new in-situ …
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Structure Activity Study of a Family of Functional Pyrene-Isoxazole-Calix[4]arene Fluorescent Chemosensors for Metal Ion Detection
… investigated by 1H NMR spectroscopy.Stern-Volmer analysis of the quenching mechanism, Benesi-Hildebrand analysis of the binding constant and detection limit calculations were performed in characterisation of the binding properties of this host.The relationship betweenthe modular building blocks …
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