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Heat Transfer Interface To Graphitic Foam, Fang-Ming Lin

Master's Theses

The A Toroidal LHC ApparatuS (ATLAS) strip tracking detector is scheduled to be upgraded in 2025. The order of magnitude for the hit densities and the radiation damage are expected to increase. When radiation increases, the leakage current increases and the heat generated at the silicon trackers can lead to thermal runaway. Cooling is critical in these detectors.

In this study, a glassy graphitic foam was developed by AllComp Inc.~as a precursor to the adhesives (glues). Graphene\textsc{\char13}s highly anisotropic thermal properties result in high thermal conductivity in the planar direction, while it is low in the normal direction. In these …

Numerical Studies Of Turbulence Effects In Cross-Flow Ventilation, Mina Mohammadmirzaei

Master's Theses

Natural ventilation systems reduce a building’s utilization of energy in terms of electricity consumption and fossil fuel usage. Many factors including building shape, window style and configuration, and wind turbulence impact the efficacy of natural ventilation. In order to investigate the effect of turbulence on natural ventilation, twelve different conditions of a cross-flow ventilated room were studied numerically using computational fluid dynamics. Wind tunnel studies of tracer gases in a scale model were used to validate the numerical results. A comparison of twelve investigated cases shows that air circulation inside a natural ventilated room is only slightly affected by turbulence, …

Nonlinear Stiffness And Viscoelasticity Of Inhibitor-Treated Blood Clots By Tensile Testing, Wilson S. Eng

Master's Theses

Although blood clots are vital to wound healing, little is known about what factors influence clot stiffness and dynamic response. This work investigates the mechanics of inhibitor-treated clots by direct tensile testing using a custom designed system for forces below 1 N. Inhibitors that affect clot formation include blebbistatin, which affects myosin II movement on actin, and cytochalasin D, which affects actin polymerization. The hypothesis of this investigation is that blebbistatin will have a greater effect on mechanical behavior than cytochalasin D, because the inhibition of myosin II will weaken the overall clot more than actin. This hypothesis was investigated …