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Full-Text Articles in Engineering
Micro-Scale Laser-Induced Fluorescence Thermometry For Multiphase Flow In Porous Media, Samuel J. Simmons
Micro-Scale Laser-Induced Fluorescence Thermometry For Multiphase Flow In Porous Media, Samuel J. Simmons
Master's Theses
In this thesis the use of Laser-Induced Fluorescence (LIF) thermometry was evaluated as a temperature measurement for multiphase flow in porous media. This optical temperature measurement technique utilizes the temperature-dependent emissive properties of fluorescent dyes to measure temperature. This research evaluates the accuracy, spatial resolution, and temporal resolution of LIF thermometry compared to existing temperature measurements. In this research water-soluble and oil-soluble fluorescent dyes are evaluated in terms of their temperature sensitivity. The ability of these dyes to measure temperature is compared to an Ansys FEA simulation of a fixed temperature gradient. For multiphase flow, the fluorescent dyes were both …
Effect Of Spatial Uniformity Of Platelet Aggregates On The Stress-Strain Behavior Of Blood Clots, Tamara Kawa
Effect Of Spatial Uniformity Of Platelet Aggregates On The Stress-Strain Behavior Of Blood Clots, Tamara Kawa
Master's Theses
Blood clots are a leading contributor to deaths and cardiovascular complications; however, they also play a critical role in wound healing. Though treatments inhibiting platelet activity help prevent thrombosis, they also affect the contractile forces exerted by platelets and, potentially, their distribution. The stiffness of the fibrin matrix that maintains the clot structure is also affected. The hypothesis of this investigation is that blood clots with uniform platelet distribution exhibit higher resistance to deformation than clots with clustered distributions, specifically because of local strain stiffening by platelets. The hypothesis was tested by conducting finite element analysis (FEA) simulations of platelet-rich …