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Filtering by: Creator Peck, David V. Remove constraint Creator: Peck, David V. License All rights reserved Remove constraint License: All rights reserved

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  • π-line reconstruction formulas in computed tomography

    Creator:
    Hass, Ryan Andrew
    Abstract:
    X-ray computed tomography is a noninvasive imaging modality capable of reconstructing exact density values of 3D objects. Computed tomography machines are deployed across the world to provide doctors with an image that reveals more detail than a standard x-ray image. We investigate algorithms based on exact computed tomography reconstruction formulas...
    Resource Type:
    Dissertation
    Full Text:
    reconstructed function is (2.68) with x0 = (−1,−1), u = .3, v = .3,m = 3 and ψ = 0. . . . . 74 4.2 Construction

  • ¿Que es rico? In Support of the ¡Que Rico Es! 250mil Familias Campaña : Practice, Ideology, Rica, Sana, y De Nuestra Tierra

    Creator:
    Fisher, Nicholas A.
    Abstract:
    What does comida rica mean? In this thesis, I explore the meanings of comida rica, sana, and de nuestra tierra through the discourses, practices, and kitchen geographies in six urban, highland households in the Ecuadorean Andes. This research, as part of a larger investigation carried out by a team of...
    Resource Type:
    Masters Thesis

  • Zooplankton of the Galapagos Islands

    Creator:
    Figueroa, Diego
    Abstract:
    The marine climate of the Galapagos is spatially and seasonally heterogeneous. A taxonomically comprehensive study of Galapagos zooplankton has never been done. This study is an initial effort to establish the distribution and community structure of zooplankton in the Archipelago. I collected zooplankton samples by vertical tows over the Galapagos...
    Resource Type:
    Dissertation
    Full Text:
    . Strub and Michael V. Oriard. I would like to thank the Galapagos National Park Service for their

  • Zinc tin oxide thin-film transistor circuits

    Creator:
    Heineck, Daniel Philip
    Abstract:
    The primary objective of this thesis is to develop a process for fabricating integrated circuits based on thin-film transistors (TFTs) using zinc tin oxide (ZTO) as the channel layer. ZTO, in contrast to indium- or gallium-based amorphous oxide semiconductors (AOS), is perceived to be a more commercially viable AOS choice...
    Resource Type:
    Masters Thesis
    Full Text:
    voltages approximately 0 to 1.5 V and subthreshold swings below 0.5 V/dec when annealed in air at 400 ◦C

  • Zinc Tin Oxide Thin Films by Pulsed Laser Deposition for use in Transparent Thin-Film Transistors

    Creator:
    Osborne, James J.
    Abstract:
    Zinc tin oxide (ZTO) films deposited by pulsed laser deposition (PLD) are investigated as a channel layers for transparent thin-film transistors (TTFTs). Films are deposited on glass for characterization, and transistor channel layers are deposited onto aluminum oxide-titanium oxide/tin doped indium oxide/glass substrates (ATO/ITO/glass) to produce TTFTs. UV-visible spectroscopy on...
    Resource Type:
    Masters Thesis
    Full Text:
    Pauw measurements yield a minimum resistivity of 2.35 a-cm, and a maximum Hall mobility of 10.4 cm2-V

  • Zeros of Replicable Functions

    Creator:
    Toomey, Benjamin J.
    Abstract:
    Following the work of Asai, Kaneko, and Ninomiya for Faber polynomials associated to the modular group, and Bannai, Kojima, and Miezaki's partial proof for the case of the Fricke group of level 2, we show that the zeros of certain modular functions for some low-level genus zero groups associated to...
    Resource Type:
    Dissertation
    Full Text:
    r2mh |h ◦ π(K) = (mhkv,mhy)(hkv,mhy) mh2(mhy)2 = k(kv, y)(v, mk y) (mhy)2 = k (mhy)2 . 2.1.3

  • Zero Kinetic Energy Photoelectron Spectroscopy of Polycyclic Aromatic Hydrocarbons

    Creator:
    Harthcock, Colin
    Abstract:
    In this dissertation, I describe spectroscopic studies of jet-cooled polycyclic aromatic hydrocarbons (PAH) and one nitrogen substituted PAH (PANH) using pulsed field zero kinetic energy (ZEKE) photoelectron spectroscopy and resonantly enhanced multiphoton ionization (REMPI) spectroscopy. Recently, there has been a demand for far-infrared (FIR) spectral information of astrophysically relevant molecules...
    Resource Type:
    Dissertation
    Full Text:
    electric field is as follows42: ∆𝜈(𝑐𝑐−1) = 𝛼�𝑉𝑝 � 𝑉 𝑐𝑐 �+ 𝑉𝑠( 𝑉 𝑐𝑐 ) (1.1) where α

  • Youth-Caseworker Relationships and Academic Resilience of Youth in Foster Care

    Creator:
    Jaramillo, Jamie
    Abstract:
    Academic success is a salient domain of youth development and is related to positive lifelong outcomes among youth in foster care. However, youth in foster care experience compounding adversities, including maltreatment and foster care placement itself, which put them at risk of academic disengagement and underachievement. Despite these adversities, academic...
    Resource Type:
    Dissertation

  • Youth Wellbeing During the First School Year of the Covid-19 Pandemic: An Intersectional Analysis

    Creator:
    Fenske, Linda J.
    Abstract:
    During the first full school year of the Covid-19 pandemic, two central contexts for adolescent development—home and school—changed utterly. In Oregon, most middle- and high schoolers attended school entirely remotely from the beginning of the pandemic, in March, 2020, through the end of April, 2021, removing both the supports available...
    Resource Type:
    Dissertation
    Full Text:
    right in and gave feedback on this dissertation that altered its course for the better. David, you’ve

  • You are What, When, Where, and How you Eat : Mercury in Avian Food Webs across Multiple Spatial Scales

    Creator:
    Jackson, Allyson K.
    Abstract:
    Human alterations of landscapes take many forms, one of which is anthropogenic pollution. Mercury (Hg) is a complex contaminant because its uptake into the food web is not driven entirely by loading to the system; methylation is necessary to make Hg bioavailable and toxic to fish and wildlife. Because methylation...
    Resource Type:
    Dissertation
    Full Text:
    contributed to all aspects of this dissertation. Dr. David C. Evers, Dr. Joshua T. Ackerman, Dr. James J