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  • Water content and electrical conductivity profile measurements for dispersive media using enhanced time domain and frequency domain models

    Creator:
    Flugstad, Benjamin A.
    Abstract:
    Water conservation and water quality are rapidly increasing in importance in all areas of the world. The ability to accurately measure soil water content and salinity, over a wide variety of conditions, is key to meeting this need. A set of forward prediction models and waveform interpretation algorithms to extract...
    Resource Type:
    Dissertation
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    ..... 215 Figure 3.77: 2-Wire Probe: WC = 0.33: EC = 1.2 S/m: TDR Pred.: 50Ω Term.: Mason: Parallel Model

  • BaCuChF (Ch = S, Se, Te) p-type transparent conductors

    Creator:
    Zakutayev, Andriy
    Abstract:
    BaCuChF (Ch = S, Se, Te) materials are chalcogen-based transparent conductors with wide optical band gaps (2.9 – 3.5 eV) and a high concentration of free holes (10¹⁸ – 10²⁰ cm⁻³) caused by the presence of copper vacancies. Chalcogen vacancies compensate copper vacancies in these materials, setting the Fermi level...
    Resource Type:
    Dissertation
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    : BaCuChF (Ch = S, Se, Te) p-type Transparent Conductors Abstract approved

  • Radiation effects on III-V heterostructure devices

    Creator:
    Jun, Bongim
    Abstract:
    The neutron and electron radiation effects in Ill-V compound semiconductor heterostructure devices are studied in this thesis. Three types of devices investigated are AlGaAs/GaAs high electron mobility transistors (HEMTs), AlGaAs/InGaAs/GaAs heterostructure insulated gate field effect transistors (HIGFETs), and InP/InCaAs/InGaAs single heterojunction bipolar transistors (SHBTs). HEMTs and HIGFETs are primarily investigated...
    Resource Type:
    Dissertation
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    Heterostructure Devices Abstract approved: S. Subramanian The neutron and electron radiation effects in IllV

  • Surface Characterization of Engineered Biomaterials

    Creator:
    Faase, Ryan A.
    Abstract:
    The work presented in this dissertation highlights the various techniques available to characterize the increasingly complex surfaces of engineered biomaterials. The methods used range from the simple measurement of a contact angle with a smartphone to a complex synchrotron technique like near edge x-ray absorption fine structure (NEXAFS) spectroscopy to...
    Resource Type:
    Dissertation
    Full Text:
    -resolution scans for the S 2p region of the final layer in the SLIPs coating

  • A role for ceramide accumulation in age-related cardiac mitochondrial dysfunction

    Creator:
    Monette, Jeffrey S.
    Abstract:
    Ceramides are a group of lipids in the sphingolipid family that are potent cell signaling molecules. Elevations in ceramide levels above the norm generally lead to apoptosis. Evidence from in vitro studies suggests that accumulation of ceramides within mitochondria leads to dysfunction of the mitochondria. This includes inhibition of the...
    Resource Type:
    Dissertation
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    S. Monette for the degree of Doctor of Philosophy in Biochemistry and Biophysics presented on

  • The Influence of Microbial Communities on Spatiotemporal Elemental Cycling in Coastal Margins Revealed by Community- and Population-level Genomics and Proteomics

    Creator:
    Kieft, Brandon P.
    Abstract:
    Biotic and abiotic processes at continent-ocean interfaces cycle a disproportionate mass of carbon and nutrients relative to their global surface area, and microbial activity is a principal determinant of organic and inorganic matter flux in these transition zones. Most studies using modern high-throughput ‘omics techniques to link microorganisms with costal...
    Resource Type:
    Dissertation
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    Abstract approved: ______________________________________________________ Ryan S. Mueller Biotic

  • Semi-volatile organic compounds and developing organisms : accumulation in California mountain tadpoles in the field and fish embryo exposures in the laboratory

    Creator:
    Stanley, Kerri A.
    Abstract:
    The atmospheric transport and deposition of semi-volatile organic compounds (SOCs), including current and historic use pesticides, polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs), to mountain ecosystems may result in the exposure of tadpoles to these SOCs. This exposure has been implicated in amphibian population declines in California. Tadpoles encounter...
    Resource Type:
    Dissertation
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    lakes of temperate areas. Environ Sci Technol 35:2690-2697. [3] Simonich S, Hites R. 1995. Global

  • Development of predictive mapping techniques for soil survey and salinity mapping

    Creator:
    Elnaggar, Abdelhamid A.
    Abstract:
    Conventional soil maps represent a valuable source of information about soil characteristics, however they are subjective, very expensive, and time-consuming to prepare. Also, they do not include explicit information about the conceptual mental model used in developing them nor information about their accuracy, in addition to the error associated with...
    Resource Type:
    Dissertation
    Full Text:
    : Jay S. Noller Conventional soil maps represent a valuable source of information about soil

  • Some contributions to asymmetric error control codes

    Creator:
    Elmougy, Samir
    Abstract:
    In some practical systems, most of the errors are of 1 → 0 type and 0 → 1 errors occur very rarely. In this thesis, first, the capacity of the asymmetric channel is derived. The capacity of the binary symmetric channel (BSC) and the Z-channel can be derived from this...
    Resource Type:
    Dissertation
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    a channel with input alphabet S and output alphabet Sy, let p(yjIXj) be the probability that the

  • Right-hook crash causality at signalized intersections

    Creator:
    Jannat, Mafruhatul
    Abstract:
    A Right-hook (RH) crash is a common type of bicycle-motor vehicle crash that occurs between a right-turning vehicle and through-moving bicycle at an intersection. At signalized intersections, RH crashes can occur at the onset of the green or during the latter portion of the green phase. In spite of the...
    Resource Type:
    Dissertation
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    Intersections. Abstract approved: _____________________________________________________ David S. Hurwitz A