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  • Problems of Shape and Information in Multiscale Modeling of Transport Phenomena

    Creator:
    Ostvar, Sassan
    Abstract:
    This work is a compilation of problems that deal with multiscale analysis of transport phenomena in environmental systems. A common feature among the problems studied here is the presence of non-negligible microscale structure in various forms. Each problem is approached from the perspective that a macroscopic observable encodes aspects of...
    Resource Type:
    Dissertation
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    the degree of Doctor of Philosophy in Environmental Engineering presented on March 1 2017. Title

  • Development of a binary mixture gas composition instrument for use in a confined high temperature environment

    Creator:
    Cadell, Seth R.
    Abstract:
    With recent advancements in material science, industrial operations are being conducted at higher and higher temperatures. This is apparent in the nuclear industry where a division of the field is working to develop the High Temperature Gas Reactor and the Very High Temperature Gas Reactor concurrently. Both of these facilities...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ Brian G. Woods With recent advancements in material science, industrial operations are being

  • Durability Assessment of Wood Composites Using Fracture Mechanics

    Creator:
    Mirzaei, Babak
    Abstract:
    The advent of synthetic adhesives has transformed the structural applications of wood. However, a persistent issue in adhesively-bonded wood products has been moisture durability. When designing wood based composites, moisture durability will depend on both the wood phase and the adhesive phase. A key question, therefore, is how does one...
    Resource Type:
    Dissertation
    Full Text:
    Mirzaei for the degree of Doctor of Philosophy in Wood Science and Materials Science presented on

  • Novel Approaches to Porous Material Discovery

    Creator:
    Sturluson, Arni
    Abstract:
    Uses for materials with a large surface area and high porosity have grown sig-nificantly in recent years. Porous materials have found usage in applications such as separation, gas storage, sensing, purification and more, prompting researchers to find and discover numerous new porous materials to suit a specific purpose. Hundreds of...
    Resource Type:
    Dissertation
    Full Text:
    and computer science, or more cutting edge methods to material discovery is an exciting approach to

  • The Modeling of Core-Wide Behavior of Pebble Bed Reactors Using Static and Dynamic Graphite Pebble Properties to Predict Core Performance and Safety Behaviors

    Creator:
    Cox, Jordan T.
    Abstract:
    The United States Department of Energy has identified the pebble-bed reactor as a high priority for US research with the end goal of licensing a pebble-bed reactor (PBR) for operation in the United States. Before this can be accomplished significant research must be done regarding the safety of the pebble-bed...
    Resource Type:
    Dissertation
    Full Text:
    Professor, Brian Woods, representing Nuclear Engineering Head of the School of Nuclear Science and

  • Productive Interactions in a Complex Engineering Project: Influence of Team Members, Engineering Practice, and Emergence of Roles

    Creator:
    Chindanon, Kritsa
    Abstract:
    Engineering capstone projects are intended as a bridge from school to professional practice in which students work in teams to use learned knowledge and skills to complete real-world engineering projects. However, while the majority of time in many undergraduate programs is devoted to development of technical knowledge and skills, there...
    Resource Type:
    Dissertation
    Full Text:
    Science presented on December 4, 2019. Title: Productive Interactions in a Complex Engineering

  • Inhibition, gene expression and modeling of ammonia oxidation in biofilms of Nitrosomonas europaea

    Creator:
    Lauchnor, Ellen Grace
    Abstract:
    This dissertation explores the physiology and gene expression of the ammonia-oxidizing bacterium Nitrosomonas europaea in surface-associated bacterial communities, or biofilms. Biofilms of N. europaea were cultivated in drip flow reactors for several weeks and gene expression microarrays were used to detect 240 genes differentially expressed between the mature biofilms and...
    Resource Type:
    Dissertation
    Full Text:
    for the degree of Doctor of Philosophy in Chemical Engineering presented on February 28, 2011

  • Predicting mechanical instability of a cylindrical plate under axial flow conditions

    Creator:
    Marcum, Wade R.
    Abstract:
    Five U.S. high performance research reactors (HPRRs) are currently part of an international nonproliferation program with the objective of ultimately converting their highly enriched uranium (HEU) fuel to a new high density, low enriched uranium (LEU) fuel while still maintaining their reactor kinetic and thermal hydraulic performance. A uranium-molybdenum (U-Mo)...
    Resource Type:
    Dissertation
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    DISSERTATION OF Wade R. Marcum for the degree of Doctor of Philosophy in Nuclear Engineering presented on

  • Engineering analysis of a rotary dryer : drying of wood particles

    Creator:
    Kamke, Frederick A.
    Abstract:
    Rotary dryers are the most commonly used wood drying system in the particleboard industry. These dryers also play an increasingly important role in drying wood residues for fuel. Many potential benefits may be realized through an improved understanding of the rotary drying process. A rotary dryer simulation model was developed,...
    Resource Type:
    Dissertation
    Full Text:
    Coefficients Used in Gas Property Equations. 150 ENGINEERING ANALYSIS OF A ROTARY DRYER: DRYING OF WOOD

  • Modification of Lower Plenum Structure for Mixing Promotion during Normal Operation of the High Temperature Gas Cooled Reactor

    Creator:
    Gradecka, Malwina
    Abstract:
    Since High Temperature Gas-cooled Reactors are being considered as most promising design of upcoming IV Gen reactors, thus key research areas were identified to address safety aspects of this design. Number of simulations and experiments need to be conducted in this field. In this study thermal-hydraulics aspects of coolant flow...
    Resource Type:
    Dissertation
    Full Text:
    Gradecka for the degree of Doctor of Philosophy in Nuclear Engineering presented on June 17, 2015