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  • Evaluation of high-altitude color infrared photography for forest inventory

    Creator:
    Kelley, Thomas H.
    Abstract:
    High-altitude color infrared photography is found to be an effective tool for forest inventory in the Umpqua National Forest of southwestern Oregon. Intelligent resource management requires the rapid, accurate, and economical inventory results that can be supplied by remote sensing. Color infrared film is shown to possess properties that make...
    Resource Type:
    Capstone Project
    Full Text:
    FOREST INVENTORY by THOMAS H. KELLEY A RESEARCH PAPER submitted to THE DEPARTMENT OF GEOGRAPHY in

  • The design, construction and calibration of a low-energy, low exposure-rate ionization chamber

    Creator:
    Clarke, Arthur Porter
    Abstract:
    A low-energy, low-exposure-rate, guarded-field ionization chamber system with a sensitive volume of approximately 1040 cm³ and an exposure-rate range from 60 mR/h to less than 0.5 mR/h was designed, constructed and calibrated. The calibration was effected by constructing and calibrating a 60 cm³ volume transfer chamber of similar design against...
    Resource Type:
    Masters Thesis
    Full Text:
    IONIZATION CHAMBER Abstract approved: Redacted for Privacy John P. Kelley 3 A low-energy, low-exposure

  • The distribution of leakage radiation from an unshielded diagnostic-type x-ray tube housing

    Creator:
    Gragg, Royce Lynn
    Abstract:
    The objective of this study was to determine the distribution of leakage radiation from two unshielded diagnostic-type X-ray tube housings. This information was used to determine the shielding required in the housings to bring them into compliance with the definition of a diagnostic-type protective tube housing, as set forth by...
    Resource Type:
    Masters Thesis
    Full Text:
    TUBE HOUSING Abstract approved: Redacted for Privacy John P. Kelley The objective of this study was

  • Scattered radiation from bedside radiographic examinations

    Creator:
    Kellner, JoEllen Gretzinger
    Abstract:
    The purpose of this study was to investigate the distribution and magnitude of scattered radiation from a typical mobile radiographic examination as an aid in evaluating the potential health hazards of the scattered radiation. Also discussed are current radiation protection standards and recommendations for mobile radiography. A Manonite phantom represented...
    Resource Type:
    Masters Thesis
    Full Text:
    RADIATiUN FROM Bt D5IDE RADIOGRAPHIC EXAMINATIONS Abstract approved, Redacted for Privacy I. -Kelley The

  • A study of the thermal characteristics of x-ray tube housings

    Creator:
    Stovall, John Walter
    Abstract:
    The relationship of x-ray tube housing temperature to duty cycle was studied for a superficial therapy x-ray installation, a dental radiographic installation, and a rotating-anode medical diagnostic installation. Thermistors were used to measure the tube housing temperature at points selected to be representative of thermal conditions on the surface of...
    Resource Type:
    Masters Thesis
    Full Text:
    ACKNOWLEDGMENT The author wishes to express his sincere appreciation to Mr. John P. Kelley for his guidance

  • The design and construction of an ionization chamber to measure background radiation

    Creator:
    Weaver, Kenneth Earl
    Abstract:
    An ionization chamber was constructed, using a fiberglass wall sphere, for the purpose of measuring background radiation. The system consists of the fiberglass wall chamber, 38.85 liters in volume, air filled, not sealed, used in conjunction with a precision capacitor, nulling voltage supply and electrometer. It was calibrated against a...
    Resource Type:
    Masters Thesis
    Full Text:
    RADIATION Abstract approved: Redacted for privacy John P. Kelley An ionization chamber was constructed

  • Pulse reader for ionization chambers

    Creator:
    Boothe, Gary F.
    Abstract:
    A pulse reader for ionization chambers has been developed, tested, and calibrated. An insulated gate field effect transistor (IGFET) was used to detect the pulses and Victoreen Model 362 Pocket Chambers were used as ionization chambers. The energy dependence of the Victoreen Model 362 Pocket Chamber was determined to be...
    Resource Type:
    Masters Thesis
    Full Text:
    for Ionization Chambers Redacted for PrivacyAbstract approved: John P. kelley /1 A pulse reader for

  • An analysis of the prerequisites for landowner participation in conservation oriented programs in the Wood River Valley, Oregon

    Creator:
    Thomas, Kelley A.
    Abstract:
    Before 2002, almost all of the approximately 40,000 acres of land in the Wood River Valley, Oregon were used for intensive, flood-irrigated summer cattle grazing, as it had been for over 100 years. Conservation activity in the valley was limited to a couple of wealthy landowners. But a year after...
    Resource Type:
    Masters Thesis
    Full Text:
    Kelley Thomas Thesis

  • Quantitative resistance to Puccinia striiformis f. sp. hordei in barley near-isogenic (BISON) lines

    Creator:
    Richardson, Kelley L.
    Abstract:
    Quantitative resistance (QR) to disease is usually more durable than qualitative resistance, but its genetic basis is not well understood. We used the barley/barley stripe rust pathosystem as a model for the characterization of the QR phenotype and associated genomic regions. As an intermediate step in the preparation of near-isogenic...
    Resource Type:
    Dissertation
    Full Text:
    OF Kelley L. Richardson for the degree of Doctor of Philosophy in Crop Science presented on

  • Addressing Data Resolution in Precision Agriculture

    Creator:
    Kelley, Jason
    Abstract:
    Irrigated agriculture constitutes the greatest consumptive water use globally, so that irrigation efficiency measures are an important part of global efforts to best utilize this limited resource. However, greater irrigation efficiency must be achieved while simultaneously maintaining or increasing crop yields and farming profitability. Incremental water use decisions are made...
    Resource Type:
    Dissertation
    Full Text:
    Kelley for the degree of Doctor of Philosophy in Water Resource Engineering presented on September 1