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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 47 for “"Silicone oil"”.
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Investigating silicone oil emulsification in eye chamber models
The emulsification of silicone oil in intraocular liquid is an unwanted complication occurring after retinal detachment repair. The repair surgery consists of removing most of the intraocular liquid and replacing it by a tamponade fluid. Silicone oils with dynamic viscosities in the range 1-5 Pa s …
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Development and study of waterproof breathable fabric using silicone oil and polyurethane binder
… waterproof properties. Polyurethane binder and silicone oil were used in eight different combinations to coat the fabric along with one sample with 100% polyurethane binder for control. A knife-over-roll coating machine was used to coat the fabric. The coated samples were tested by using the …
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Corneal complications related to retinal surgical patients including analysis on silicone oil use
… Researchers are aware of possible issues with oil tamponades, laser techniques, and other methods used. There could be clear markers to focus on a pattern of retina diagnoses of the patients that seem more prone to these problems in the front of the eye. Studies have noted refractive issues and …
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Heat Transfer in Laminar Solid-Fluid Suspension Flow
… concentrated polyethylene suspensions in silicone oil and kerosene mixture, and polystyrene suspensions in silicone oil and Freon 113 mixture were measured in a rotating Couette flow apparatus. Contrary to the case of single phase fluid, effective thermal conductivity was observed to be …
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Heat Transfer Enhancement of Phase Change Materials for Thermal Energy Storage Systems
… divided into two phases. In the first analysis, silicone oil is selected as a heat transfer medium to be used with the PCMs to establish convective heat transfer enhancement. The melting point, latent heat and specific heat capacity were measured by a differential scanning calorimeter (DSC). The …
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Sonoluminescence as a probe of acoustic cavitation
… gas, and the intensity of sonoluminescence from silicone oil solutions of Cr(CO)$\sb6$ was found to decrease with decreasing 1/($\gamma-$1).
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Development of Polymeric Microparticle-Based Drug Delivery System for Sustained Delivery of H2S for Treatment of Glaucoma
… coacervate formation in the PCL–dichloromethane–silicone oil system was determined using ternary phase behavior studies, and formulation parameters including silicone oil concentration, surfactant type, and surfactant concentration were optimized. The optimized formulations were characterized for …
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Thermodynamic Measurements by Gas-Liquid Chromatography
… 110.1, 120.0, 150.0°C. 2. a) Dichloro Methane/Silicone Oil MS 200 at 24.8, 29.1, 34.7, 39.8°C. b) 112, Trichloro trifluoro Ethane (Arklone-P)/Silicone Oil MS 200 at 24.8, 29.1, 34.7°C. c) 111, Trichloro Ethane (Genklene-P)/Silicone Oil MS 200 at 34.7, 45.1, 60.5, 74.0°C. A limited amount of …
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Properties of Absorbent Polymer Extractants for the Selective Removal of Target Molecules from Fermentation Systems
… aimed to replace a liquid extractant (silicone oil) using a block copolymer, Hytrel® 8206, in the biotransformation of indene to cis-(1S,2R)-indandiol, a chiral pharmaceutical intermediate, by Pseudomonas putida ATCC55687. The polymer simultaneously delivered substrate and removed the …
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Volumetric dimensional changes of luting cements
… in each group) based on storage conditions: silicone oil at 22°C and 37°C and distilled water at 22°C and 37°C. Using the manufacturers’ instructions for each material, cylindrical specimens were prepared with dimensions of 7 +0.1 mm in diameter and 2 +0.1 mm in height. A 0.01-mg resolution …
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Mitochondrial Metabolism Elucidated by Rapid Fractionation from Tissue
… from tissue by density centrifugation through silicone oil, with a view to assess the mitochondrial metabolic changes during ischaemia-reperfusion injury. This method has minimal cytosolic contamination and is completed in under 5 minutes, and mass spectroscopy analysis has shown enrichment of …
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Implementation of drop-based oil flow interferometry to estimate wall shear stress in three-dimensional flows
This thesis introduces a simplified drop based oil-film interferometry (OFI) approach using silicone oil droplets to measure wall shear stress in three-dimensional flows. Wall shear stress is a critical parameter in fluid dynamics, significantly affecting aerodynamic drag and turbulent flow …
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Development of Novel Compressible Magnetorheological Fluid (CMRF)
… fluid (CMRF) has been synthesized from modified silicone oil, composite polyurethane-microspheres additives, and surface coated iron particles. The CMRF has been designed to replace the spring in a damper system. Thus, the fluid has to provide an elastic properties in the system which can be …
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Effects of Flow Rate and Droplet Size on Double Emulsion Morphology
… morphology of three fluids, an air bubble and oil droplet in water. The experimental results have been compared to a morphology diagram based on the spreading factors that depend on the interfacial tension between two fluids. The possible morphologies are complete engulfment, partial …
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Microfluidic synthesis and properties of bio-inspired colloids
… of hydrophobic compartments from crosslinkable silicone oil-in-water nanoemulsions. The nanoemulsion loadings achieved in our composite microgels have, to our knowledge, among the highest ever demonstrated in a hydrogel material. In addition, we perform proof-of-concept assays to show several …
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A Mutant of Arabidopsis Thaliana Deficient in Chloroplast Dicarboxylate Transport Activity
… activity was also measured directly using the silicone oil filter centrifugation technique. Malate, 2-oxoglutarate, glutamate and aspartate uptake were severely reduced or missing in chloroplasts from the mutant.
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Design and fabrication of an optical pressure micro sensor for skin mechanics studies
… "Soft" PDMS is a combination of PDMS and the silicone oil "Fluid 200" and has a Young's Modulus less than that of Human Skin.
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A pair of immiscible ternary liquids with matchable refractive indexes over a wide range of density and viscosity ratios
… pairs of fluids. In each case, one fluid is an oil phase consisting of a solution of a light silicone oil, a heavy silicone oil, and 1- bromooctane, which at room temperature are fully miscible over the entire range of compositions. Two opposite phases are considered: a “polar phase” consisting …
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Apical and radial pH diffusion through root dentin from five modern intracanal medicaments: a twelve-week evaluation of alkaline dynamics
… propylene glycol, methylcellulose in water, silicone oil, or calcium silicate. Standardized cavities were prepared at inner dentin, outer dentin, and two apical sites approximately 3 mm and 6 mm beyond the medicament terminus. Remaining dentin thickness between the canal lumen and each cavity …
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Droplet coalescence in the shear flow of model emulsions
… 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. The influence of variables such as the …
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