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Filtering by: Creator Weller, Joshua A. Remove constraint Creator: Weller, Joshua A. Committee Member McIntyre, David Remove constraint Committee Member: McIntyre, David

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  • Substitution Effects on the Structure and Electronic Behavior of Ternary Precious Metal Oxides

    Creator:
    Flynn, Joshua
    Abstract:
    Due to the high cost of precursor materials, complex oxides of 4d and 5d transition metals are under-studied compared to their 3d counterparts. Recent studies have shown that oxides containing heavier transition metals can exhibit exotic electronic states due to presence of strong spin-orbit coupling. The goal of this dissertation...
    Resource Type:
    Dissertation
    Full Text:
    Ternary Precious Metal Oxides by Joshua Flynn A DISSERTATION submitted to Oregon

  • Local Accessibility of Objective, Classical Reality

    Creator:
    Kincaid, Joshua J.
    Abstract:
    The fact that measuring a quantum system reduces it to apparently classical behavior, eliminating the interference patterns that are a hallmark of quantumness, cries out for an explanation. That explanation has been provided by the recognition of decoherence,whereby the interference is destroyed by the very interaction that acquires information.We begin...
    Resource Type:
    Dissertation
    Full Text:
    , Classical Reality by Joshua James Kincaid A DISSERTATION submitted to Oregon State University in

  • The energy extraction performance of an oscillating rigid and flexible foil

    Creator:
    Totpal, Alexander D.
    Abstract:
    The aerodynamic performance of an oscillating pitching and plunging foil operating in the energy harvesting mode is investigated. Experiments are conducted in a closed-loop recirculating wind tunnel at Reynolds numbers of 24,000 to 48,000, and reduced frequencies (k = fc/u) of 0.042 to 0.083. Foil kinematics are varied through the...
    Resource Type:
    Masters Thesis
    Full Text:
    Blunck, Joshua Gess, James Liburdy, and Deborah Pence, thank you all for taking me on as a graduate

  • Redundant information in a spin system beyond pure decoherence

    Creator:
    Svesko, Andrew M.
    Abstract:
    Quantum physics in the Copenhagen interpretation places an unsatisfying divide between the quantum and classical worlds. Decoherence -- the destruction of superposition states of the system -- helps us understand how the quantum transitions to the classical. Quantum Darwinism builds on decoherence to understand how information about the system is...
    Resource Type:
    Masters Thesis
    Full Text:
    of Master of Science in Physics presented on May 29, 2014. Title: Redundant Information in a Spin

  • Innovative Bioanalytical Tools & Methods for Combinatorial Non-Coding RNA Analysis

    Creator:
    Zhang, Lulu
    Abstract:
    Recently researchers have discovered that groups of small non-coding RNAs (ncRNAs) play regulatory roles in gene expression and participate in various biological processes. For example, pathogenesis of many diseases, cell cycle regulation, and signaling pathways. Intracellular and live cell imaging of small ncRNA groups will reveal their relative expression levels...
    Resource Type:
    Dissertation
    Full Text:
    provide unparalleled detail on spatial and temporal heterogeneities within a single cell. The ability to

  • Wind-current Interactions of the Sri Lanka Dome and Tropical Indian Ocean

    Creator:
    Cullen, Kerstin
    Abstract:
    The southwest monsoon, which may be idealized as the northward movement of the intertropical convergence zone in the Indian Ocean associated with differential heating of land and ocean, brings a seasonal reversal of currents and winds in the Bay of Bengal and the Arabian Sea. Atmospheric convection from monsoon activity...
    Resource Type:
    Dissertation
    Full Text:
    , brings a seasonal reversal of currents and winds in the Bay of Bengal and the Arabian Sea. Atmospheric

  • Coulomb Explosion in Moderately Intense Nanosecond Laser Fields

    Creator:
    Yao, Yuzhong
    Abstract:
    In this dissertation, I present experimental observations of multiply charged atomic ions (MCAI) generated from interactions of atomic/molecular clusters with moderately intense nanosecond laser pulses. This process is also known as Coulomb explosion (CE) and it has been extensively studied in intense laser fields using ultrashort pulses. Several prevailing theories...
    Resource Type:
    Dissertation
    Full Text:
    moderately intense nanosecond laser fields is still a topic of debate as theories from intense fields

  • High efficiency delta-sigma modulation data converters

    Creator:
    Lee, Kyehyung
    Abstract:
    Enabled by continued device scaling in CMOS technology, more and more functions that were previously realized in separate chips are getting integrated on a single chip nowadays. Integration on silicon has opened the door to new portable wireless applications, and initiated a widespread use of these devices in our common...
    Resource Type:
    Dissertation
    Full Text:
    that were previously realized in separate chips are getting integrated on a single chip nowadays

  • Use of Targeted and Non-Targeted Analysis to Study Complex PAH Environmental Mixtures

    Creator:
    Chibwe, Leah
    Abstract:
    Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous contaminants formed from the incomplete combustion of organic material. These contaminants are of concern because of their widespread presence in the environment and toxic properties. In addition, PAHs encompass a class of diverse compounds with varying physicochemical properties and exist in the environment as...
    Resource Type:
    Dissertation
    Full Text:
    encompass a class of diverse compounds with varying physicochemical properties and exist in the

  • Substitutional Effects on the Electromechanical Properties of Lead-free, Piezoelectric (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT)

    Creator:
    McQuade, Ryan R.
    Abstract:
    This work investigates the effect of cation substitution on the properties of the lead-free, solid solution (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT). Substitution into NBT-BT increases disorder and increases the relaxor ferroelectric properties. These relaxor ferroelectric materials show large piezoelectric strains that can be utilized in actuator applications. Ceramic samples were prepared using standard...
    Resource Type:
    Dissertation
    Full Text:
    neutron diffraction experiments suggests that all materials had a complex, two-phase structure with a