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Showing 1 to 20 of 37 for “"Liquid mixtures"”.
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Separation of liquid mixtures by membranes.
… pervaporation and reverse osmosis separation of liquid mixtures. The first part of this study concerns pervaporation separation of liquid mixtures. A fluorine-containing surface modifying macromolecule (SMM) was added into a polyethersulfone (PES) membrane casting solution. Because of its lower …
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Heats of transport in binary liquid mixtures
The diffusion thermoeffect or the heat flux induced by an isothermal chemical potential gradient can be characterized by the heat of transport; the ratio of the heat flux to the mass flux under isothermal conditions. The heat of transport, Q, for the carbon tetrachloridecyclohexane system was …
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Experimental investigation of ionic liquid mixtures for electrospray propulsion
… The second paper identifies how changes in ionic liquid (IL) mixture ratio affects the species present in the plume and shows clear variations in plume species with mixture ratio for [Emim][EtSO<sub>4</sub>] and ethylammonium nitrate mixtures. The last paper quantifies how non-linearity in …
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Modeling Flow-Induced Microstructure of Inhomogeneous Liquid-Liquid Mixtures
Liquid-liquid dispersions are found commonly in nature and industry. As these dispersions flow, the microstructure changes due to deformation and breakup processes at the microscale. The ability to predict this microstructural evolution has many applications, including controlling properties in …
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Mass transfer characteristics of two-aqueous-phase liquid-liquid mixtures
Mass transfer rates were studied using the falling drop method. Cibacron Blue 3 GA dye was the transferring solute from the salt phase to the PEG phase. Measurements were undertaken for several concentrations of the dye and the phase-forming solutes and with a range of different drop sizes, e.g. …
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Thermodynamic properties of phosphonium-based ionic liquid mixtures at different temperatures
Submitted in the fulfillment of the academic requirements for the degree of Masters of Applied Science in Chemistry, Durban University of Technology. Durban, South Africa, 2018.
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Boiling Heat Transfer From Horizontal Cylinders to Immiscible Liquid-Liquid Mixtures
Made available in DSpace on 2014-12-10T21:24:43Z (GMT). No. of bitstreams: 1 7105252.pdf: 4882844 bytes, checksum: d6e20063fcb7f45e174edf5c484a9e37 (MD5) Previous issue date: 1970
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A study of monomer liquid mixtures and polymer network formation at a solid surface using molecular dynamics
… the structural and dynamical properties of the liquids. The OPLS force field is deemed appropriate to study such systems and presents several advantages over DREIDING force field variations, such as a ease of use. Results show that there is a distinct interface region adjacent to the carbon …
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Identifying vaping hazards through the evaluation of exposure methods and cell culture models for e-liquid mixtures.
… of technology and the addition of unique e-liquid formulations (i.e., the liquid used in an e-cigarette or similar device), e-cigarettes have captured the attention of youth. E-cigarette usage in youth is a public health concern considering the number of reported underage usage and rapid …
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Heat transfer in upward flowing two-phase gas-liquid mixtures. An experimental study of heat transfer in two-phase gas-liquid mixtures flowing upwards in a vertical tube with liquid phase being driven by a pump or air injection.
… was measured using either air to lift the liquid (air-lift system) or a mechanical pump. The heat transfer coefficient results have been extensively studied and compared with other workers' results. An attempt was made to correlate the present heat transfer data in dimensionless …
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A Numerical Model for Analyzing Thermal Layering of Liquid Mixtures of Hydrogen Isotopes Inside a Spherical Inertial Confinement Fusion Target
Made available in DSpace on 2017-07-06T18:56:24Z (GMT). No. of bitstreams: 3 Simpson_Elsie_M_MS.pdf: 76201261 bytes, checksum: 640e268234953d29f308a7dd1992f7e9 (MD5) Simpson_Elsie_M_MS_ABS.pdf: 602877 bytes, checksum: 43d4e8d20d26a20f23cd8cf6c25e57b2 (MD5) license.txt: 4813 bytes, checksum: …
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Evaporation of liquids from structured and non-structured mixtures
… technique. Evaporation rates for pure liquids with vapour pressures ranging from 0.1 to 500 Torr, water contained in silica particles, alkane/squalane mixtures, hexane gelled with silica particles, surfactant/water mixtures, immiscible layered liquid mixtures and emulsions have been …
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Dynamics of liquids in porous media: Investigating competitive adsorption using NMR relaxometry
… adsorption and microphase separation of liquid mixtures imbibed within porous media. The work was done on three different mesoporous catalysts and catalyst supports, namely anatase titania, γ-alumina and silica. The main NMR relaxometry method that was applied was Fast Field Cycling (FFC) …
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Development Of Novel Deep Eutectic Solvents For Optimization And Characterization, Involving Bio Extraction And Delivery Of Drugs With Poor Solubility
DES are a specific category of liquid mixtures formed due to Vander Wal or hydrogen bond interactions between HBDs and HBAs, whose components usually remain as solids individually. DES are easy to prepare, biodegradable, cost effective and non- toxic. In this study we have synthesized different …
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Thermal diffusion near a binary liquid azetrope
… which often arise in the separation of liquid mixtures by distillation.
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Characterization of fluorohydrogenated ionic liquids for use in the ion electrospray propulsion system
… the use of two fluorohydrogenated ionic liquids as propellants for the ion Electrospray Propulsion System developed at MIT, 1-ethyl-3-methylimidazolium fluorohydrogenate and trimethylsulfonium fluorohydrogenate. It was found that these ionic liquids undergo a crystallization-like …
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Under confinement : molecular dynamics investigations of ions and molecules in nanopores and at nanoscale interfaces.
… consisting of graphene electrodes and ionic liquid electrolytes were also investigated with manipulation of ion constituents. We present findings on how to formulate binary ionic liquid mixtures to attain desired density, conductance, and electric double layer potential. This work provides …
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Infrared spectrometry of high polymers in the overtone and combination regions
… quantitative analysis of homogeneous gaseous and liquid mixtures. A study shewed that Beer's law was applicable, with limited quantitative accuracy, to solid thermoplastic mixtures. The results indicate that a base-line analysis technique, based on Beer's law can be used to determine concentration …
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Evaluation of physical properties of ionic liquids
Firstly, experimental data for ionic liquids properties; density, viscosity of pure ionic liquids, viscosity of binary ionic liquid mixtures, and solubility in molecular solvents were collected from the literature and thus four databases were compiled. Then mathematical gnostics was used to analyse …
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