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  • Synthesis and evaluation of PEO-coated materials for microchannel-based hemodialysis

    Creator:
    Heintz, Keely
    Abstract:
    The marked increase in surface-to-volume ratio associated with microscale devices for hemodialysis leads to problems with hemocompatibility and blood flow distribution that are more challenging to manage than those encountered at the conventional scale. In this work, stable surface modifications with pendant polyethylene oxide (PEO) chains were produced on polycarbonate...
    Resource Type:
    Masters Thesis
    Full Text:
    material, and is directly applicable to most medical materials (e.g. arterial/venous accesses, blood

  • CO₂ Reduction in Microscale-Based Corona Reactor : Experiments and Modeling

    Creator:
    Miao, Yu
    Abstract:
    Global warming is becoming an increasingly important environmental concern and CO₂ is considered as the major cause of global warming. Creating useful applications for CO₂ would generate alternatives to merely venting CO₂ to the atmosphere, and decreasing the carbon intensity of human activities. Among various methods of CO₂ utilization, conversion...
    Resource Type:
    Dissertation
    Full Text:
    , namely the power applied to the reactor (specific points of the V-I curve used), flow rate of CO2, and

  • Experimental Characterization of a Supercritical Carbon Dioxide Microchannel Solar Thermal Receiver

    Creator:
    L'Estrange, Thomas
    Abstract:
    Characterization of a microchannel solar thermal receiver for supercritical carbon dioxide (sCO₂) is presented. The receiver design is based on conjugate computational fluid dynamics and heat transfer simulations as well as thermo-mechanical stress analysis. Two lab scale receivers with a 2x2 cm² absorber area are fabricated and experimentally characterized -...
    Resource Type:
    Masters Thesis
    Full Text:
    material selection and fabrication process steps will be discussed. All three aspects- materials

  • Applications of Nonthermal Microplasmas in Chemical Reaction Engineering

    Creator:
    Kreider, Peter B.
    Abstract:
    Nonthermal plasmas generate high concentrations of excited species that can simultaneously exist at high energy and far from thermodynamic equilibrium, making them useful tools in chemistry and engineering. Microplasmas, roughly defined as plasmas that are generated within sub-millimeter dimensions, provide enhanced stability, improved excited species density, increased nonequilibrium properties, higher...
    Resource Type:
    Dissertation
    Full Text:
    . I’d like to acknowledge the ACS Petroleum Research Fund (ACS-PRF #52025-ND9), the National Science

  • Nonthermal Plasma Microreaction Engineering for Gas and Liquid Processing

    Creator:
    Pommerenck, Justin
    Abstract:
    Atmospheric pressure plasma is non-thermal at millimeter to micrometer separations. It represents an alternative low exergy initiator of many chemical reactions. In many instances heat, light or sound are not efficient providers of the necessary energy to overcome chemical activation barriers. The focus of this research is applying dc nonthermal...
    Resource Type:
    Dissertation
    Full Text:
    .......................................... 53 2.4 – Comparison of dc, ac, DBD, microwave and thermal to dc microplasma .................. 55

  • Fluidic and thermal modeling for the high production rate synthesis of high quality nanoparticles

    Creator:
    Peterson, Daniel Alan
    Abstract:
    Advances of colloidal nanomaterials for societal benefit have been hampered by the high cost and low quality of nanoparticles (NPs). The production of high quality nanoparticles within colloidal suspension has two related concerns; (1) current high production rates methods of synthesizing nanoparticles result in a larger range of particle size,...
    Resource Type:
    Dissertation
    Full Text:
    encouragement. Especially, Barath for our hours of conversation about; nanotechnology, material science and