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 20 of 268 for “"emulsions"”.
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Mineralized Bionanoparticle Pickering Emulsions
… bionanoparticle-stabilized Pickering emulsions were investigated in this work. Proteins (HSA, BSA, fetuin-A), protein cages (ferritin) and plant viruses (CPMV, TYMV, TMV) were employed to produce functional nanopatterned surfaces and interfaces by means of Pickering emulsions which …
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Computational Studies of Electrorheological Emulsions
… of investigations on the rheological response of emulsions to the application of the electric field. A front-tracking finite difference scheme is used in conjunction with Taylor-Melcher leaky dielectric theory to study the problem. The numerical results in different regions of the …
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Wood extractives in hemicellulose stabilized emulsions
… extractives in stabilization of hemicelluloses emulsions during lipid oxidation. In the experimental section, eight different spruce galactoglucomannan (GGM) isolates and two birch glucuronoxylan (GX) isolates were characterized for their wood extractive composition and their antioxidant …
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Unique Emulsions based on recombinant Hydrophobins
… in the formation of gel-like oil in water emulsions. Interestingly, without the occurrence of typical emulsion instability processes like creaming or coalescence, these emulsions showed significant aging effects. We conclude them to be the consequence of the time-dependent formation and …
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A study of carnauba wax emulsions
Thesis (M.S.)--Massachusetts Institute of Technology. Dept. of Chemical Engineering, 1947.
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Understanding and optimisation of non-conventional emulsions
… and to use knowledge gained to optimise emulsions containing them. The project was sponsored by GlaxoSmithKline, a world leading pharmaceutical company, whose interest is in using the knowledge to help in research and development of new products and optimising existing products during …
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Equilibrium Conditions of Hydrate-Forming Pickering Emulsions
… data of (cyclopentane hydrate + water 60:40) emulsions, in the concentration range from 0.1 to 2% of Span 80, is determined at atmospheric pressure (101.325 kPa). Requirements for thermodynamic validity of the equilibrium temperatures measured by this technique are investigated and discussed …
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Models for sound propagation in suspensions and emulsions
… work on sound propagation in suspensions and emulsions is reviewed. Three theoretical approaches are identified: scattering theory, coupled phase theory and porous media theory. Coupled phase theory is extended and compared analytically and numerically to scattering and porous media theory. …
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Dairy ingredients-based emulsions and beta-carotene delivery
… bioactive components, and tailored structures of emulsions potentially contribute to a better control of the stability and bioavailability of instable and poorly water-soluble bioactive components. The current study mainly investigated four model O/W emulsions with different initial droplet size, …
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Large Scale Hydrodynamic Simulations of Emulsions and Foams
This work complements previous studies by Metsi and by Zinchenko and Davis. In extending the work of Metsi, this study considers non-unit viscosity ratio for large scale monodisperse systems, higher dispersed phase volume fractions, and tighter simulation error tolerance. Zinchenko and Davis …
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Large Scale Simulations of Bidisperse Emulsions and Foams
Emulsions and foams are of fundamental importance in a wide variety of industrial and natural processes. The macroscopic properties of these multiphase systems are determined by the viscous and interfacial interactions on the microscopic level. In previous research efforts, the realism of computer …
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Droplet coalescence in the shear flow of model emulsions
… drops, migration occurs only for concentrated emulsions. In this study, dilute emulsions of silicone oil and castor oil were employed to observe drop coalescence in the absence of drop breakup; flow fields utilized were Poiseuille flow through a tube and Couette flow in a cone-and-plate device. …
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The use of ultrasonics for characterising fats and emulsions
… of ultrasonics for characterising fats and emulsions. Ultrasonic measurements were made using either a pulse echo technique (1-10MHz), or a pulse echo interferometric technique (5-55MHz). The ultrasonic velocities of a series of 0-30% w/w glyceride/oil mixtures and some commercial fats were …
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Evaporation rates from emulsions stabilised by surfactants and nanoparticles
… is concerned with the evaporation rates of emulsions stabilised by either surfactant molecules or nm-size solid particles. Understanding of the mechanisms of the evaporation process plus the control of the rate limiting step of each mechanism involved in such processes is important for a …
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The Stability and Drug Release Characteristics of Multiple Emulsions
Water-in-oil-in-water (W/O/W) or multiple emulsions have been studied by a number of methods. Bimodal particle size distributions were produced containing oil and multiple droplets. The proportions of these two types of droplets was important as it determined the degree to which the emulsion …
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Soft matter in motion: from actin to active emulsions
Using microscope as a discovery tool, we surveyed a range of soft material systems, including filamentous actin, liquid crystal droplet and block copolymer to study their dynamics under equilibrium and non-equilibrium conditions. By following the motion of filamentous actin under a fluorescence …
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The measurement of beta radiation dosage with photographic emulsions
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1951.
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Rheology and Processing of Animal and Plant-Based Dense Emulsions
… behavior of animal-based and plant-based mayo emulsions seeking to decipher the signatures that make the real mayonnaise into such an appetizing complex fluid. We find that commercially available vegan mayos can emulate the apparent yield stress and shear thinning of yolk-based mayonnaise by …
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