Global ETD Search
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 8 of 8 for “"surfactant effects"”.
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Surfactant effects on the interaction of a three dimensional vortex pair with a free surface; and,
… thesis, a canonical problem of three dimensional surfactant hydrody namics, the three-dimensional laminar interaction between a clean or contaminated free surface and a vortical flow underneath is considered. Initially, the vortical flow is in the form of two modulated finite-core vortex tubes …
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Characterization of Surfactant Effects on the Visible Spectroscopy of Lanthanide Metal Ion-Triphenylmethane Dye Complexes (Microscopy, Polyvinylidene Fluoride, Electron, Polymethylmethacrylate, Blends)
… were considered, adding the nonionic surfactant Triton X-100 to the Gd('+3)-CAS complex had little effect.
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Computational methods for two-phase flow with soluble surfactant
… zero Reynold's number or Stokes flow limit. A surfactant that is present on the interface is also soluble in the exterior fluid, and the drop is deformed by an imposed linear flow. The geometry is two-dimensional and Cartesian. The dissolved surfactant is considered in the physically realistic …
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Toxicity, morphological changes, and dissipation of oil sands naphthenic acids in Chlamydomonas reinhardtii
… were conducted to help ascertain the toxic effects of NAFCs on the unicellular green algae Chlamydomonas reinhardtii wild type (WT) and two cell wall mutants: CC-400, which retains the innermost and outermost glycoprotein wall layers, and CC-3395, believed to be completely naked. The …
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Electro-deformation of a moving boundary: a drop interface and a lipid bilayer membrane
… drop covered with non-diffusing insoluble surfactant under a uniform direct current (DC) electric field. The large- deformation model predicts the dependence of equilibrium spheroidal drop shape on the permittivity ratio, conductivity ratio, surfactant coverage, and the elasticity number. …
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Development and Implementation of Dispersion Phase Diagrams (DPDs) for Four Different Hydrophobically Modified Ethoxylated Urethane (HEUR) Based Acrylic Paint Systems
… of paint include associative thickeners, surfactants, pigments and fillers with the thickener being the primary area of focus for this study.</p> <p>The relatively simple system of latex, associative thickener and surfactant has been studied extensively. These studies have shown the …
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Diffuser Fouling Mitigation, Wastewater Characteristics And Treatment Technology impact on Aeration Efficiency
… of other wastewater characteristics such as the surfactant concentration or particulate COD could have interfered with OTE. Further studies on the impact of wastewater characteristics (i.e., surfactants and particulate COD) and operating conditions on OTE and alpha were carried out in another …
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Mode of action of organosilicone surfactants in enhancing the performance of Triclopyr herbicide
… formulations in the presence or absence of added surfactants were evaluated in relation to optimum control of gorse (Ulex europaeus L.). From a wide range of non-ionic surfactants, superior formulations of triclopyr butoxyethyl ester were selected on the basis of radio labelled uptake and …