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Filtering by: Committee Member Levien, Keith L. Remove constraint Committee Member: Levien, Keith L. Academic Affiliation Chemical, Biological and Environmental Engineering Remove constraint Academic Affiliation: Chemical, Biological and Environmental Engineering

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  • Novel Interfacial Syntheses of Covalent Organic Frameworks

    Creator:
    Liu, Ziyan
    Abstract:
    Covalent organic frameworks (COFs) are an emerging type of microporous crystalline polymers connected by organic units via strong covalent bonds. Due to the well-defined crystalline structure and excellent chemical and thermal stabilities, COF materials are being considered as promising candidates in a variety of applications, such as gas adsorption, catalysis...
    Resource Type:
    Masters Thesis
    Full Text:
    . I would like to extend my appreciation to my committee members: Dr. Keith L. Levien, Dr. Zhenxing

  • Synthesis, surface treatment, and characterization of copper indium sulfide quantum dots

    Creator:
    Alemu, Yagenetfere A.
    Abstract:
    The need for less toxic quantum dots (QDs) has led to a significant number of investigations related to copper indium sulfide (CIS) QDs. Lower toxicity and broad band absorbance width makes CIS QDs appealing for light emitting diodes (LEDs), lasers, sensors, bio-imaging, solar cells, and computing. The optical and electronic...
    Resource Type:
    Masters Thesis

  • Spray drying for erythrocyte preservation at room temperature

    Creator:
    Leu, Hsuan-Yu
    Abstract:
    Spray drying has been widely used in food science for long-term storage of products such as powdered milk, and it has recently been used for preservation of more temperature sensitive products such as human blood plasma and single-cell organisms. However, there are no previous reports of successful spray drying of...
    Resource Type:
    Masters Thesis
    Full Text:
    desired temperature was achieved by mixing 100 μL of 40% hematocrit RBC 6.5% 11% 22% 43% 53% 75% RBCs

  • Models and Modeling in Capstone Physical and Virtual Laboratory Projects

    Creator:
    Nefcy, Erick J.
    Abstract:
    The research presented in this dissertation focuses on the model generation and modeling processes of student teams that participate in capstone, undergraduate engineering physical and virtual laboratory projects. The Heat Exchange Laboratory Project, the Ion Exchange Laboratory Project, and the Virtual Chemical Vapor Deposition (CVD) Laboratory Project provide the context...
    Resource Type:
    Dissertation
    Full Text:
    through my preliminary examination. Dr. Devlin Montfort, for his support and insight. Dr. Keith

  • Fabrication of Biological Pigment Nanowires by Inkjet Printing

    Creator:
    Cao, Yu
    Abstract:
    Digital inkjet printing is developing quickly today because inkjet printing processes consume less energy and water and produce less waste discharge than traditional dyeing and other printing technologies. Inkjet printing provides more versatility and flexibility in terms of printing patterns and colors. Natural pigments are gaining more attention today as...
    Resource Type:
    Masters Thesis
    Full Text:
    the integrating form of equation 2.4 by applying initial condition t=0, L=0. L is the wetted fiber

  • Investigating the Effect of Tetrahydrofuran (THF) Plasticizer on the Crystallization and Solvent Seaming of PET/NPG Copolymer Films

    Creator:
    Srivastava, Aarushi
    Abstract:
    Polyethylene terephthalate (PET) polymer has been the material of choice for packaging industry as a result of its excellent mechanical and physical properties. These properties are highly dependent on the microstructure, chemistry, and processing conditions of this material. PET is often oriented in the machine direction (MD), the transverse direction...
    Resource Type:
    Masters Thesis
    Full Text:
    my experimental work. I would also like to thank Dr. Kieth Levien and Dr. Wade Marcum for serving on

  • Experimental Study of Nucleate Boiling Bubble Dynamics and Heat Transfer Enhancement on Printed Bi-functional Surfaces

    Creator:
    David, Michele
    Abstract:
    Boiling heat transfer is studied for its ability to dissipate high fluxes and achieve heat transfer coefficients two orders of magnitude greater than single-phase heat transfer systems. Heater surface enhancement with increased surface area, varied geometry, wettability contrast and micro/nano-structures can further enhance boiling heat transfer performance through bubble nucleation...
    Resource Type:
    Masters Thesis
    Full Text:
    concentration (moles/L) k Thermal conductivity (W/m-K) ∆T Wall superheat (°C) T1

  • Upgrading of a model compound of bio-oil using carbon monoxide in high temperature water

    Creator:
    Phipps, Ezra Daniel
    Abstract:
    Meeting the energy demands of the future is one of the most important challenges facing the engineering community today. An example of this problem is transportation fuels. Most of the current transportation fuels are composed of petroleum hydrocarbons. Finding a viable alternative is important given the potential scarcity of these...
    Resource Type:
    Masters Thesis
    Full Text:
    -xylose, and L-arabinose. The elemental composition of wood derived biomass is 50% carbon, 6% hydrogen

  • Efficiency of a direct contact condenser in the presence of the noncondensable gas air compared to a tube and shell condenser

    Creator:
    Lebsack, Jonathan M.
    Abstract:
    Steam distillation is the traditional method used for the extraction of peppermint oil. This process is able to remove approximately 20% of the oils from the leaves of the plant. It is a very costly and un-sustainable process due to the release of carbon emissions. Solvent free microwave extraction promises...
    Resource Type:
    Masters Thesis
    Full Text:
    ). Pommerenck’s tube and shell condenser used a coolant flow rate of 24 L/min while the flow rates tested in

  • Using a membrane reactor for the sulfur-sulfur thermochemical water-splitting cycle

    Creator:
    Knapp, Nathan Michael
    Abstract:
    The hydrogen economy is a possible component of an energy future based on use of alternative and renewable energy sources, deemed desirable from the general consensus of the worldwide community that we do not want to further exacerbate the climate problems that we have introduced over the last two centuries...
    Resource Type:
    Masters Thesis
    Full Text:
    capable of operating 32 l/h of hydrogen for 20 hours.20 Later two more articles were released detailing