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Filtering by: Creator Hewkin%2C James A. Remove constraint Creator: Hewkin%2C James A. Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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  • Architecture, size, and reproduction in plants : a pollination study of Mertensia ciliata (James) G. Don

    Creator:
    Geber, Monica
    Abstract:
    I experimentally test the hypothesis that the potential for selfing increases with plant size in Mertensia ciliata (Boraginaceae), a self-compatible, profusely-flowering perennial. This follows from the premises that 1) pollen dispersal by pollinators between flowers is limited, and 2) individual pollinators, in this study bumblebees, will visit more flowers per...
    Resource Type:
    Masters Thesis
    Full Text:
    plants: A Pnllinatinn Study of Mertensia cili ta (James) G. Don. Abstract approved: Charles eKing I

  • Development of mucosal vaccines for avian influenza A virus composed of recombinant Lactococcus lactis and Streptococcus gordonii

    Creator:
    Reese, Kaleb A.
    Abstract:
    Novel mucosal vaccines (LL-M2e, LL-HAe, SG-HAe) were constructed from live, non-pathogenic Lactococcus lactis or Streptococcus gordonii that express conserved regions of HA or M2 antigens from avian influenza virus (AIV) A. All three vaccines evoked antigen-specific serum immunoglobulin G (IgG) responses in vaccinated chickens. The addition of the adjuvant cholera...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Kaleb A. Reese for the

  • Micro-bubble dynamics in two-phase flow through a micro-channel

    Creator:
    Shepard, Thomas G.
    Abstract:
    An experimental investigation into the behavior of micro-bubbles flowing through a micro-channel has been conducted. Experiments were performed within a rectangular micro-channel with dimensions of 5 cm x 13.2 mm x l30 jim. Bubbles were generated in an electrolyte solution by electrolysis at the lower channel wall near the inlet....
    Resource Type:
    Masters Thesis
    Full Text:
    Dynamics in Two-Phase Flow Through a Micro-channel. Abstract approved: James A. Liburdy An experimental

  • Heat transfer during the piston-cylinder expansion of a gas

    Creator:
    Rodrigues, Matthew Jose
    Abstract:
    The expansion of a gas within a piston-cylinder arrangement is studied in order to obtain a better understanding of the heat transfer which occurs during this process. While the situation of heat transfer during the expansion of a gas has received considerable attention, the process is still not very well...
    Resource Type:
    Masters Thesis
    Full Text:
    James A. Liburdy The expansion of a gas within a piston-cylinder arrangement is studied in order

  • Decomposition of cattail and bulrush plant parts in a constructed wetland treating pulp mill effluent

    Creator:
    Walz, Anita
    Abstract:
    Dried cattail and bulrush plant pieces in mesh bags were incubated in the constructed wetland treating Pope & Talbot pulp mill effluent. Two ponds planted with each species and two depth ranges in each pond were chosen, to determine decomposition rates. Bags were withdrawn and analyzed at five time points...
    Resource Type:
    Masters Thesis
    Full Text:
    : James A. Moore Dried cattail and bulrush plant pieces in mesh bags were incubated in the constructed

  • Effect of Active Trailing Edge Motion Upon Airfoil Energy Harvester

    Creator:
    Strahl, Jordan D.
    Abstract:
    The application of a flapping foil with prescribed trailing edge motion to energy harvesting in a low reduced frequency (k = fc/U∞) regime was experimentally studied. The effects of the phase and amplitude of the applied trailing edge motion upon time-variant power extraction capability have been measured and are interpreted....
    Resource Type:
    Masters Thesis
    Full Text:
    : Effect of Active Trailing Edge Motion Upon Airfoil Energy Harvester Abstract approved: James Liburdy

  • Transport and transformations of nitrogen compounds in effluent from sand filter-septic system draintile fields

    Creator:
    Bushman, Jennifer L.
    Abstract:
    A total of 44 intermittent sand filter-septic systems, in five counties of Western Oregon, were sampled over a three-month period during the summer of 1995. The sand filter systems varied in age from 36 months up to 167 months (3 to 13.9 years). Liquid samples were taken from the septic...
    Resource Type:
    Masters Thesis
    Full Text:
    Draintile Fields. Abstract approved: A total of 44 intermittent sand filter-septic systems, in five

  • Flow characteristics of constructed wetlands : tracer studies of the hydraulic regime

    Creator:
    Stairs, Darrin B.
    Abstract:
    Treatment efficiency in a constructed wetland is related in part to the amount of time that a wastewater remains in the system. Current design methods idealize the system as a plug flow reactor and use a "residence time" based solely on the volume of the cell and the flow rate....
    Resource Type:
    Masters Thesis
    Full Text:
    Constructed Wetlands: Tracer Studies of the Hydraulic Regime Abstract Approved: Treatment efficiency in a

  • Evaluating dairy waste management systems ̓influence on fecal coliform concentration in runoff

    Creator:
    Grismer, Mark Edward
    Abstract:
    This paper examines the environmental factors influencing the die-off and transport of fecal coliform bacteria present in wastes applied to the land surface. These factors are examined specifically for dairy waste management systems and the net effect each system has on runoff water quality. A model is developed that considers...
    Resource Type:
    Masters Thesis
    Full Text:
    Runoff Redacted for privacy Abstract approved: Jam's A. Moore This paper examines the environmental

  • High resolution root locus plots

    Creator:
    Swenson, Edward James
    Abstract:
    A technique is presented for obtaining high resolution root locus plots and Bode diagrams. This is done by translating the origin of coordinates to the area of interest by an appropriate change of variable. The method is applicable to hand calculations or use of a potential analog computer. Examples include...
    Resource Type:
    Masters Thesis
    Full Text:
    ROOT LOCUS PLOTS by EDWARD JAMES SWENSON A THESIS submitted to OREGON STATE UNIVERSITY in