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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
    Full Text:
    the degree of Doctor of Philosophy in Environmental Engineering presented on March 1 2017. Title

  • Investigation of transport phenomena in a highly heterogeneous porous medium

    Creator:
    Vogler, Daniel
    Abstract:
    This work focuses on solute mass transport in a highly heterogeneous two-region porous medium consisting of spherical low-hydraulic conductivity inclusions, embedded in a high-hydraulic conductivity matrix. The transport processes occuring in the system are described by three distinct time scales. The first time scale reflects the characteristic time for convective...
    Resource Type:
    Masters Thesis
    Full Text:
    of Science in Chemical Engineering presented on May 23, 2012. Title: Investigation of Transport

  • 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

  • Steady-State Diffusion in a Spatially Varying Porous Medium

    Creator:
    Ferrero, Peter T.
    Abstract:
    Heterogeneous porous material represents a persistent challenge in the field of engineering. Microscale properties such as the porosity and microchannel torturosity significantly control the macroscale transport characteristics of homogeneous porous medium. Additional complexity is introduced when these small-scale features vary in space. Examples of heterogeneous porous systems include artificial body...
    Resource Type:
    Masters Thesis
    Full Text:
    degree of Master of Science in Chemical Engineering presented on August 20, 2018. Title: Steady-State

  • Consumer perceptions of decking material

    Creator:
    Thomas, Jon M.
    Abstract:
    Wood remains the most popular material for deck construction. For centuries, consumers have chosen wood because of its desirable qualities and aesthetics. In recent years, wood plastic composites (WPC's) have seen rising demand as alternatives to wood decks, despite a large price premium. In addition, the removal of CCA treated...
    Resource Type:
    Masters Thesis

  • U(VI) transport in subsurface materials: is two-site, one-species modeling sufficient?

    Creator:
    Harrington, Stephanie J.
    Abstract:
    Uranium adsorption to Hanford sediment was studied for various pH, total inorganic carbon concentrations, and total U(VI) concentrations. Both batch and transport studies were done in an attempt to understand the adsorptive trend of U(VI) on Hanford sediment, and the changes in adsorption as both pH and total inorganic carbon...
    Resource Type:
    Masters Thesis
    Full Text:
    degree of Master of Science in Civil Engineering presented on September 24, 2004. Title: U(VI

  • 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

  • Moisture Resistance of Wood-Based Composite Materials

    Creator:
    Molina, Luis
    Abstract:
    Dimensional stability of wood-based composites with changing moisture content remains an important challenge in the industry for many applications. Wood modification technologies have shown significant improvement in dimensional stability by altering the chemistry of the wood substrate, or by filling the available space in the wood microstructure that otherwise would...
    Resource Type:
    Masters Thesis
    Full Text:
    Head of the Department of Wood Science and Engineering Dean of the Graduate School

  • 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

  • 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