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 40 for “"Differential Scanning Calorimeter"”.
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The Development of High-Throughput and Miniaturized Differential Scanning Calorimeter for Thermodynamic Study of Bio-Molecules
… is focused on a high-through and miniaturized differential scanning calorimeter for thermodynamic study of bio-molecules using MEMS techniques. The dissertation firstly introduces the overall design and operation principles. This miniaturized DSC was fabricated based on a polyimide (PI) thin …
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Capillary rheometry of soy isolate dough
… isolate dough are measured using a Perkin-Elmer Differential Scanning Calorimeter (DSC-2) over 310 to 350K. The observed behavior of the soy isolate doughs is explained in terms of a network based on temporary crosslinks, possibly hydrogen bonds. Additionally, factors which complicate viscosity …
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Thermal Performance of Microencapsulated Phase Change Material Slurry
… to characterize the MPCM slurry, including a differential scanning calorimeter, a temperature-controlled concentric viscometer, and a well-calibrated heat transfer loop. Results indicate that the use of an effective nucleating agent is necessary to prevent a large amount of supercooling of the …
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Development of eco-friendly flame retardant fabric using phosphorus based intumescence chemistry
… Fourier transform infrared spectroscopy (FTIR), Differential scanning calorimeter (DSC), and Thermogravemetric analysis (TGA) testing instruments. Vertical flammability testing was performed as per ASTM D-6413 standards to test the fabric for its flame retardancy. Tensile testing of the coated …
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Crosslinked conventional size and nanoparticle size acrylic latexes and their blends: Investigation of the effects of crosslinking, particle size and distribution, glass transition temperature and blending on film formation, properties and morphology
… thermogravimetric analyzer (TGA), modulated differential scanning calorimeter (MDSC), nano-indenter, and atomic force microscope (AFM). The results showed significant improvements in acrylic latex performance proposing coatings near zero VOC and forming basis for exploring potential …
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In-Situ Measurement of Resin Shrinkage for Aerospace Components
… observed for Epoxy 105 and 0.01042 for EPON 862. Differential Scanning Calorimeter (DSC) is used to measure the degree of cure for the two epoxies, and to correlate resin shrinkage to the cure state. We also observed the effect of fibers on the shrinkage of the resin using carbon fiber, glass …
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Shape-Stabilization of PCM/HDPE Composites with 3D-Printing Applications for Battery Thermal Management
… and extrude the PCM/HDPE composite filament. A differential scanning calorimeter (DSC) was used to measure the effective heat storage capacity at the operating conditions of the ESS. A scanning electron microscope was used to visually validate the mixing and bonding of the PCM and HDPE.</p>
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Measurement of Thermal Properties of Seafood
… Specific heat and enthalpy were measured using a differential scanning calorimeter. Moisture content and fat content were measured by the AOAC specified oven dry method and ether extraction method, respectively. The measured thermal properties agreed well with the scarcely available literature …
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Optimization of Great Plains Coal Gasification Using Aspen/SP
… is thermally neutral. However, pressure differential scanning calorimeter tests of five North Dakota lignite coal samples indicate this energy is exothermic. </p><p>In this study, some significant model improvements have been made. • The predicted flow of condensible volatile matter …
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Crystallization behavior of nylon 6/6 and its blends with poly(vinyl pyrrolidone)
… behavior of nylon 6/6 was studied using a differential scanning calorimeter (DSC). Samples were isothermally crystallized at various temperatures from the melt. Subsequent DSC analysis showed the presence of three distinct melting endotherms. The behavior of these three endotherms was …
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Physical ageing in semi-crystalline polyethylene terephthalate
… Analyser (TMA) and the second on a Differential Scanning Calorimeter (DSC). The glasstransition temperatures and physical ageing effects were tested on the TMA, whilst on the DSC, only the physical ageing effects were tested. During the ageing experiments 3 samples of varying …
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Characterization of polyethylene terephthalate, cellulose acetate and their blends
… Reflectance Spectroscopy (FTIR-DRIFT), Differential Scanning Calorimeter (DSC) and Dynamic Mechanical Analyzer (DMA). Scanning Electron Microscopy (SEM) micrographs of these blends are taken to examine their morphologies. From IGC, it is deterrnined that the surfaces of PET and CA are …
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The Effects of Applied Strain and Heat Treatment on the Properties of NiTi Wire During Shape Setting
… properties were characterized using the differential scanning calorimeter and tensile tests. Changes in the Af, UTS, and elastic modulus due to ageing processes and applied strain were observed. Following theory, precipitation rates of Ni-rich phases generally increased with increased …
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Effect of chemical mechanical planarization processing conditions on polyurethane pad properties
… thermomechanical analyzer (TMA), and modulated differential scanning calorimeter (MDSC). Results suggested that both annealing at temperatures above 140 °C and soaking in slurry for up to two weeks significantly increase the storage modulus of the sample and promote pad shrinkage in the …
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Thermophysical Properties and Microstructural Changes of Composite Materials at Elevated Temperature
… parameters were measured with a simultaneous differential scanning calorimeter (DSC) / thermogravimetric analyzer (TGA). Experimental techniques were developed for quantitative specific heat measurement based on ASTM standards with modifications for accurate measurements of decomposing …
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Investigation of the physical properties of cholesteryl ester liquid crystal and the interaction with cells
… of the CELC was continued by using Differential Scanning Calorimeter (DSC), X-ray Diffraction (XRD), Polarising Microscopy (POM) and Fourier Transform Infrared Spectroscopy (FTIR). Nonetheless, the morphology of cells interaction with CELC after it reached confluency was studied …
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Heat Transfer Enhancement of Phase Change Materials for Thermal Energy Storage Systems
… and specific heat capacity were measured by a differential scanning calorimeter (DSC). The obtained results show that silicone oil will lead to melting point depression of maximum 3◦C in the PCMs. In the second analysis, the conductive heat transfer enhancement by addition of nanoparticles has …
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Chemical Modification of Cellulose Fibers and their Orientation in Magnetic Field
… using thermogravimetric analysis (TGA) and a differential scanning calorimeter (DSC). Scanning electron microscopy (SEM) results showed that there was minimal morphological change occurred to cellulose after treatment. It was also observed that the electrical conductivity of cellulose modified …
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Modification of Ternary Nitrate Mixture's Thermal Properties
… phase change materials were then tested using a differential scanning calorimeter (DSC) through heating and cooling cycles in the range of 0°C to 390°C. The latent heat of the samples was measured from the cooling exothermic curve from the DSC. Scanning electron microscopy (SEM), energy …
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Purification and characterisation of novel recombinant β-glucosidases from aspergillus with application in biofuel production
… Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), Differential scanning calorimeter (DSC), Thermogravimetric analysis (TGA) and 13Carbon Solid State Nuclear Magnetic Resonance (SSNMR) of pure BC before and after treatment with a …
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