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Filtering by: Creator Buettner, Michael John Remove constraint Creator: Buettner, Michael John Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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  • Hypervelocity spectroscopy from impacts in polymeric materials

    Creator:
    Buettner, Douglas J.
    Abstract:
    Stacked sheets of polyethylene terephthalate andpolystyrene provide a means for recovering projectiles travelling at hypervelocities. The transparency of these multiple diaphragms is utilized so that light generated from hypervelocity impacts can be studied. A method for gathering visible as well as ultraviolet light from less transparent polymer foams has been...
    Resource Type:
    Masters Thesis
    Full Text:
    materials AN ABSTRACT OF THE THESIS OF Douglas J. Buettner for the degree of Master of Science in

  • Downstream Rearing Chinook Salmon (Oncorhynchus tshawytscha) in the Upper Mainstem of the John Day River

    Creator:
    Scheu, Michael P.
    Abstract:
    Juvenile Chinook Salmon (Oncorhynchus tshawytscha) leave the natal reach at different times and move downstream at different rates which can increase their productivity by allowing them to utilize habitats on different temporal scales and spreading risk of localized stochastic events. This life history diversity can also allow fish to adapt...
    Resource Type:
    Masters Thesis
    Full Text:
    tshawytscha) in the Upper Mainstem of the John Day River. by Michael Patrick Scheu

  • Flavor development of cheddar cheese under different manufacturing practices

    Creator:
    Lemus, Freddy Mauricio
    Abstract:
    Cheddar Cheese samples (good cheese, weak cheese, cheese made with pasteurized milk, cheese made with heat-shocked milk, cheese from production plant A, cheese from production plant B, cheese made with adjunct culture, and cheese made without adjunct culture), were evaluated during the ripening stage. Proteolysis was studied by a fractionation...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Michael C. Qian Cheddar Cheese samples (good cheese, weak cheese, cheese made with

  • Beaver ecology in Bridge Creek, a tributary to the John Day River

    Creator:
    Maenhout, Julie L. (Harper)
    Abstract:
    The American beaver (Castor canadensis) was nearly extirpated by the late 1800's due to the fur trade. Due to reintroduction efforts, it now occupies much of its former range. Beavers are a keystone species and ecosystem engineers, greatly influencing riparian and instream habitats through selective harvesting of plant materials and...
    Resource Type:
    Masters Thesis
    Full Text:
    Beaver Ecology in Bridge Creek, a Tributary to the John Day

  • Germination and establishment in Willamette Valley native prairie plants

    Creator:
    Russell, Michael C.
    Abstract:
    Native plants provide many ecosystem services while also having great beauty and are a valuable component of the landscape. As use of these plants in habitat restoration, agricultural insectary plantings, and home landscapes increases so does demand for information on the basic biology of a group of species that have...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Michael C. Russell

  • Association of hydrophobic organic compounds with dissolved soil organic carbon

    Creator:
    Ochs, Michael
    Abstract:
    Volatile hydrophobic compounds (HOCs) brought into soil and sediment systems represent a serious threat to the environment. Dissolved organic carbon (DOC) may exert an important influence over the total aqueous solubility and mobility of organic pollutants through their incorporation into micelles or the formation of soluble complexes. To date, however,...
    Resource Type:
    Masters Thesis
    Full Text:
    MICHAEL OCHS AND JOHN BAHAM*1 ABSTRACT Volatile hydrophobic organic compounds (HOCs) represent a serious

  • Habitat use by female greater sage grouse in relation to fire at Hart Mountain National Antelope Refuge, Oregon

    Creator:
    Byrne, Michael W.
    Abstract:
    The United States Fish and Wildlife Service currently uses fire as a management tool to improve Greater Sage Grouse (Centrocercus urophasianus Bonaparte) nesting and brood-rearing habitat at Hart Mountain National Antelope Refuge (HMNAR) in S.E. Oregon. Previous studies at HMNAR revealed use of burned areas by sage grouse throughout the...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Michael W. Byrne

  • The dynamic shear moduli of blubber for selected large whale species

    Creator:
    Summers, Michael P.
    Abstract:
    Whale blubber is the insular tissue layer located between the dermis and the superficial fascia layer which sheathes the whale's musculature. It is made up of a lipid matrix ramified with strong, structural collagen and elastic fiber bundles, but little is known of its mechanical properties. Knowing these properties adds...
    Resource Type:
    Masters Thesis
    Full Text:
    Species AN ABSTRACT OF THE THESIS OF Michael P. Summers for the degree of Master of

  • Structural Evolution, Vein Orientation, and Paragenesis of the Botija Porphyry Cu-Mo-(Au) Deposit, Colón, Panamá

    Creator:
    Sepp, Michael D.
    Abstract:
    The Botija Cu-Mo-Au porphyry deposit is located in the Cobre Panamá mining district, which contains several deposits with a global measure and indicated and inferred resource of 14.8 MT of Cu. These deposits are associated with the Cerro Petaquilla batholith, which has U/Pb zircon ages of 26-33 Ma (Whattam et...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Michael D. Sepp for

  • Tertiary amine complexes of cobalt (II) and nickel (II) trifluoromethanesulfonates

    Creator:
    Jansky, Michael Thelen
    Abstract:
    Hydrated cobalt(II) and nickel(II) trifluoromethanesulfonates have been prepared by a previously reported procedure, and have been characterized for the first time as [ Co(H₂O)₆] (CF₃SO₃)₂H₂O and [Ni(H₂O)₆] (CF₃SO₃)₂. These formulations are based on analyses, near-infrared spectra, and on measurements of the ligand field electronic spectra and the magnetic susceptibilities. The...
    Resource Type:
    Masters Thesis
    Full Text:
    ) trifluoromethanesulfonates AN ABSTRACT OF THE THESIS OF Michael The len Jan.sky for the degree of Master of Science in