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Filtering by: Committee Member Humprey, Philip E. Remove constraint Committee Member: Humprey, Philip E. Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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  • New acoustic emission applications in civil engineering

    Creator:
    Schumacher, Thomas
    Abstract:
    Non-destructive testing methods and applications have become of increasing interest due to the worldwide aging and deteriorating infrastructure network. In the field of Civil Engineering, bridges and bridge components as well as non-structural elements such as roadway pavements for example, are affected. In particular, the Acoustic Emission (AE) technique offers...
    Resource Type:
    Dissertation
    Full Text:
    , Dr. Michael Scott, Dr. Daniel Cox, and Dr. Philip Humphrey served in my PhD committee and their

  • Development of an Accelerated Method for Assessing Decay of Wood Plastic Composites (WPC's)

    Creator:
    Silva Guzman, Jose Antonio
    Abstract:
    This study examined the decay resistance of the pine and maple components of wood plastic composites (WPC' s) of varying thicknesses exposed on several culture media to wood decay fungi under laboratory conditions. The ability of malt agar extract (MEA), potato dextrose agar (PDA), amended basal salts, sawdust (maple and...
    Resource Type:
    Dissertation
    Full Text:
    and Philip Humprey for serving in my academic committee and for the objective criticism to improve my

  • Engineering analysis of a rotary dryer : drying of wood particles

    Creator:
    Kamke, Frederick A.
    Abstract:
    Rotary dryers are the most commonly used wood drying system in the particleboard industry. These dryers also play an increasingly important role in drying wood residues for fuel. Many potential benefits may be realized through an improved understanding of the rotary drying process. A rotary dryer simulation model was developed,...
    Resource Type:
    Dissertation
    Full Text:
    COMMITTEE MEMBERS: Dr. ames B. Wilson, Associate Professor, Forest Products Dr. Charles E. Wicks, Pro

  • Mandelalides as Potent Mitochondrial ATP Synthase Inhibitors : From Discovery of New Analogs to Function-Oriented Synthetic Studies

    Creator:
    Nazari, Mohamad
    Abstract:
    Our quest for pharmaceutically important marine natural products led to re-isolation of known mandelalides A-D and identification of new congeners E-L from re-collected South African Lissoclinum tunicate specimens. Mandelalides A, B, and L were characterized as selective cancer cell toxins, with an unusual activity profile influenced by their glycosylation /...
    Resource Type:
    Dissertation
    Full Text:
    of known mandelalides A-D and identification of new congeners E-L from re-collected South African

  • Measurement of the rates of reductive dechlorination of chlorinated phenols

    Creator:
    Nicholson, David K.
    Abstract:
    Knowledge of a compound's degradation pathway is crucial to the assessment of risk at contaminated sites. Pentachlorophenol and its metabolic products can serve as model compounds to study the fate and transport of halogenated aromatic compounds in the environment. Acclimation of anaerobic sewage sludge to pentachlorophenol produced a microbial consortium...
    Resource Type:
    Masters Thesis
    Full Text:
    committee members Drs. Jonathan D. Istok, Kenneth J. Williamson, and Philip E. Humphrey. Funding for this

  • Broadening the scope of the modified-Julia reaction : a mild and stereoselective method for the synthesis of (Z)-configurated α,β-unsaturated lactones

    Creator:
    Giesbrecht, Heath Eugene
    Abstract:
    An intramolecular variant of the modified-Julia olefination was demonstrated by the synthesis of α,β-unsaturated lactones in a mild and (Z)-selective fashion. The lynchpin reagent (benzothiazol-2-sulfonyl) acetic acid was synthesized in a straightforward fashion in 86% overall yield from commercially available 2-mercaptobenzothiazole via conversion to ethyl (benzothiazol-2-ylthio)acetate by base mediated alkylation...
    Resource Type:
    Masters Thesis
    Full Text:
    the coupling reaction………………………….. 6 2. E-selectivity exhibited for unsaturated (aromatic

  • Crystallin proteolysis in lens during aging and cataract formation

    Creator:
    Ueda, Yoji
    Abstract:
    The major purpose of this research was to characterize partially degraded proteins appearing in the ocular lens during aging and cataract, and to identify the responsible proteolytic activities. This research is significant, because increased protein degradation is associated with lens opacification and cataract. Determining the sites where lens proteins become...
    Resource Type:
    Dissertation
    Full Text:
    field of proteomics. I would also like to thank Dr. Neil E. Forsberg, Dr. Philip D. Whanger, Dr

  • Development of Methods for Stereoselective Carbon-Carbon Bond Formation

    Creator:
    Wu, Zhenhua
    Abstract:
    Three distinct methods to achieve the stereoselective synthesis of carbon-carbon bonds were investigated, encompassing: (i) the formation of axially chiral biaryl molecules by enantioselective Suzuki cross-coupling, (ii) the synthesis of α-phenylalkylboronic esters by enantioselective chain extension, and (iii) the stereospecific synthesis of alkenes by eliminative cross-coupling of enantioenriched sp³-hybridized carbenoids....
    Resource Type:
    Dissertation
    Full Text:
    the targeted alkene [(E)- or (Z)- isomer] as determined by choice of carbenoid stereochemical pairing

  • The influence of cognitive conflict on religious thinking in fifth and sixth grade children

    Creator:
    Abraham, Kitty Greene
    Abstract:
    The purpose of this study was to test the effectiveness of two religious education curricula in facilitating measure-able concrete-to-abstract movement in children's religious thinking. Subjects for the study were 47 fifth and sixth grade children enrolled in the Sunday School classes of four Oregon United Methodist Churches. Twenty-four children who...
    Resource Type:
    Dissertation
    Full Text:
    Professor of Family Life and major professor; Dr. J. Philip O'Neill, Professor of Family Life; Dr. Arthur E

  • Effects of selenium and glutathione peroxidase on the biosynthesis of prostaglandin E₂ and F₂α by the ram vesicular gland

    Creator:
    Abdelgadir, Salaheldin Eltigani
    Abstract:
    This study was conducted to investigate the involvement of selenium and glutathione peroxidase in prostaglandin biosynthesis by the ram vesicular gland. Vesicular glands were collected from healthy intact rams covering a wide range of selenium nutrition and were analyzed for selenium concentrations, glutathione peroxidase activities and levels of prostaglandin E₂...
    Resource Type:
    Masters Thesis
    Full Text:
    , Dr. Wilbert Gamble, Dr. Philip D. Whanger and Dr. Wilson E. Schmisseur for serving as members of my