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Filtering by: Creator Lowery, David P. Remove constraint Creator: Lowery, David P. Committee Member Cann, David Remove constraint Committee Member: Cann, David

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  • Dissipation and wavepacket collision in carbon nanotube waveguides

    Creator:
    Saranam, Venkata Rajesh
    Abstract:
    Carbon nanotubes (CNTs) superior mechanical, electrical and thermal properties make them attractive components in nanomechanical devices. Their large aspect ratio and low density makes them ideal candidates for high frequency resonators in numerous applications including wireless communication, and mass and chemical sensors. One reason why CNTs have been slow to...
    Resource Type:
    Masters Thesis
    Full Text:
    Wavepacket Collision in Carbon Nanotube Waveguides Abstract approved: P. Alex Greaney Carbon nanotubes

  • Creating a Predictive Model of Cinder Cone Evolution in Central Oregon

    Creator:
    Das-Toke, Shyam P.
    Abstract:
    Cinder cones are useful geomorphic features for geological analysis because they generally have known initial states and follow a similar pattern of degradation as they are exposed to erosive processes. This is largely because cinder cones are produced by monogenetic eruptions. Characterizing large cinder cone fields in terms of age...
    Resource Type:
    Masters Thesis
    Full Text:
    , Dr. Eric Kirby, and Dr. David Cann, who provided input on my thesis and reviewed drafts several

  • Part I: Synthetic studies toward the southern portion of Azaspiracid-1; Part II: Total synthesis of amphidinolide B₁ and the proposed structure of amphidinolide B₂

    Creator:
    Lu, Liang
    Abstract:
    The structural architecture present in marine toxin azaspiracid - 20 stereocenters, 9 rings, 3 separated spirocenters - has attracted considerable synthetic attention. Our efforts toward the synthesis of azaspiracid have led to the completion of both C₁-C₂₆ northern and C₂₇-C₄₀ southern halves. Herein, the synthesis of southern FGHI ring system...
    Resource Type:
    Dissertation
    Full Text:
    extend my appreciation to my committee members, Prof. Paul R. Blakemore, Prof. Kevin P. Gable, Prof

  • Fabrication of a flexible glucose sensing catheter for human implantation

    Creator:
    Matthews, David J.
    Abstract:
    Flexible electronics processing techniques were applied to integrate a glucose sensor with a hormone-delivery catheter in order to create a cheap and minimally invasive method for patients with type 1 diabetes to continually monitor and control their blood sugar levels. Ultimately, this work intends to move toward the development of...
    Resource Type:
    Masters Thesis
    Full Text:
    Implantation AN ABSTRACT OF THE THESIS OF David J. Matthews for the degree of Master of

  • The Use of Various Morphologies of Nanocellulose as Life Long Anodes of Sodium Ion Batteries

    Creator:
    Schardt, Jenna
    Abstract:
    Sodium-ion batteries (SIBs) require the use of a highly reversible anode. To form this anode carbon nanofibers and nanocrystals are derived from cellulose nanofibers, cellulose nanocrystals, and bacterial nanocellulose. The primary structure of the cellulose nanofibers is maintained when carbonized allowing for high surface area in the structure. The carbon...
    Resource Type:
    Masters Thesis
    Full Text:
    and willing to help in the advancement of my degree and career. I would like to thank Dr. David

  • Self-adaptive Subsets for Stretched and Rotated Textures in Digital Image Correlation

    Creator:
    Gao, Zizhan
    Abstract:
    Digital image correlation (DIC) uses pairs of images, one in a reference state and one after in situ manipulation of the object, to measure full-field displacements and strains by tracking the motion of small image subsets. Subset selection is always a crucial part of DIC technique as it has a...
    Resource Type:
    Capstone Project
    Full Text:
    is the coordinate of the targeting pixel, P denotes a pixel point in S, S denotes subset. GMPS is

  • 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:
    David Cann and his group for always being supportive and kind enough to share lab space and research

  • First principles studies of optical, electronic and mechanical properties of organic molecules and solids

    Creator:
    Barras, Faye Lyn
    Abstract:
    This thesis presents the results of quantum-mechanical first principles calculations of optical, electronic and mechanical properties of organic molecules and solids, which have diverse potential applications such as photovoltaics, flexible electronics, and mechanical catalysts with applications in force sensors and self-healing materials. The electronic and optoelectronic properties of organic thin...
    Resource Type:
    Dissertation
    Full Text:
    my committee members, David Roundy, Janet Tate, and Oksana Ostraverkhova for their guidance. I would

  • Structure-property relationships of YbFe₂O₄-type layered transition metal oxides

    Creator:
    Grajczyk, Rosa
    Abstract:
    The structure–property relationships of solid solutions within the YbFe₂O₄ family of compounds have been studied in relation to their optical, dielectric and magnetic properties. This family of compounds is of recent interest because of the trigonal bipyramid coordination that is rarely observed in transition metal oxides. The systematic study of...
    Resource Type:
    Dissertation
    Full Text:
    . Arthur Sleight, Dr. Michael Lerner, Dr. David Cann, and Dr. David McIntyre. Thank you for your

  • Development of traceable metal oxide nanoparticles for examining environmental fate and transport

    Creator:
    Rowbotham, Brian
    Abstract:
    The fate and transport of engineered nanoparticles (ENPs) such as titanium dioxide (TiO₂) are of concern due to their increasing use in consumer products. Although analytical methods for detection and quantification of ENPs in environmental matrices are being developed, these methods are difficult, time consuming, and not easily validated for...
    Resource Type:
    Masters Thesis
    Full Text:
    ,  P,  Pt,  Si,  Sn,  Ti,  Tl,  Xe,  Y   105–106   F,  Fe,  Nb,  Ne   107