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Movement of zoospores of Phytophthora citricola in saturated porous media

Creator:: Ochiai, Naoyuki
Abstract:: The genus Phytophthora comprises numerous plant pathogens in both natural and managed ecosystems. For Phytophthora spp. that infect roots, dispersal occurs in soil water through a combination of advection and swimming of specialized motile propagules (zoospores). Specific biological and physico-chemical processes, however, remain poorly understood, due to difficulties in studying...
Resource Type:: Dissertation
Full Text:: transport of motile microorganisms. The goal of this research was to elucidate the impacts of advection

A contribution to the development of wide band-gap nonlinear optical and laser materials

Creator:: Stone-Sundberg, Jennifer L.
Abstract:: The primary focus of this work is on examining structure-property relationships of interest for high-power nonlinear optical and laser crystals. An intuitive and simply illustrated method for assessing the nonlinear optical potential of structurally characterized noncentrosymmetric materials is introduced. This method is applied to materials including common quartz and tourmaline...
Resource Type:: Dissertation
Full Text:: as materials processing, medicine, and research. Frequency doubling or second-harmonic generation

Novel nanocomposite synthesis for high-performance thermoelectrics

Creator:: Eilertsen, James S.
Abstract:: Thermoelectric materials are playing a larger role in the global effort to develop diverse, efficient, and sustainable energy technologies: primarily through power-generating thermoelectric modules. The principal components of thermoelectric modules are solid-state thermoelectric materials – typically heavily doped semiconductors – that convert heat directly into electricity. However, this conversion efficiency...
Resource Type:: Dissertation
Full Text:: advance in improving efficiency – the New Paradigm in thermoelectric material research – has been the

Reactions of protein with phenols and quinones evaluation of amino acid modification and protein digestibility

Creator:: Wehr, Herbert Michael
Abstract:: Plant tissues contain a wide variety of phenolic compounds, frequently in high concentration. Both non-covalent association of intact and oxidized phenols and covalent linkage of oxidized phenols to protein occur. Such interactions can have important biochemical and nutritional significance. A model system approach was used to identify and quantitate amino...
Resource Type:: Dissertation
Full Text:: Non-covalent Association of Phenolic Material with Protein 29 Statement of Purpose 36 MATERIALS AND

Photomechanics of stress transfer mechanisms in composite materials

Creator:: Edelman, Walter E.
Abstract:: A study of stress transfer near the ends of the whisker in a simulated whisker reinforced composite material was conducted by using photoelastic techniques. The composite material studied was αAl₂O₃ whiskers in an aluminum matrix. The photoelastic models used consisted of a scaled-up macroscopic stiffener embedded in a three-dimensional epoxy...
Resource Type:: Dissertation
Full Text:: material receiving much research attention at this time is the metallurgical whisker reinforced composite

Nitrogen release from granules of sulfur-coated urea

Creator:: Jarrell, Wesley M.
Abstract:: Sulfur-coated urea (SCU) is a slow release nitrogen fertilizer manufactured by the Tennessee Valley Authority. Urea granules are sprayed with molten sulfur, then holes in the sulfur coating are sealed with a layer of wax sealant. The sulfur coatings are mixtures of amorphous and crystalline allotropes of sulfur. Coating thickness...
Resource Type:: Dissertation
Full Text:: coating materials until the urea is exposed to water. The urea dissolves and diffuses out of the granule

Fundamental structure-property relationships in luminescent materials

Creator:: Diaz, Anthony L.
Resource Type:: Dissertation
Full Text:: for Advanced Materials Research Corvallis, OR 97331-4003 Materials Research Bulletin 31, 147 (1996

The transplantability and growth of the Walker 256 carcinosarcoma in rats exposed to a polychlorinated biphenyl, Aroclor 1254

Creator:: Kerkvliet, Nancy Isaacson
Resource Type:: Dissertation
Full Text:: MATERIALS AND METHODS Tumor Transplantation as a Tool in Cancer Research Tumor transplantation, as the

Adsorption of ³H Qβ virus on powdered silica

Creator:: Felton, Mack
Resource Type:: Dissertation
Full Text:: . These two gentlemen made it possible for me to major in microbiology and to work on a research project

The effect of 2,4-D on the respiration rate and ethylene production of Bartlett pears and Red Delicious apples

Creator:: Fechtig, Allen David
Abstract:: After nearly 20 years of commercial use in orchards without apparent tree injury in Oregon and Washington, 2,4-D [(2,4-dichlorophenoxy) acetic acid] was reported in 1970 to cause injury to apple and pear trees in Washington. In the early 1970's, there was widespread concern among growers, researchers, and processors in the...
Resource Type:: Dissertation
Full Text:: . Arnold P. Appleby, during the course of conducting the research experiments, analyzing the data, and

ScholarsArchive@OSU

Movement of zoospores of Phytophthora citricola in saturated porous media

A contribution to the development of wide band-gap nonlinear optical and laser materials

Novel nanocomposite synthesis for high-performance thermoelectrics

Reactions of protein with phenols and quinones evaluation of amino acid modification and protein digestibility

Photomechanics of stress transfer mechanisms in composite materials

Nitrogen release from granules of sulfur-coated urea

Fundamental structure-property relationships in luminescent materials

The transplantability and growth of the Walker 256 carcinosarcoma in rats exposed to a polychlorinated biphenyl, Aroclor 1254

Adsorption of ³H Qβ virus on powdered silica

The effect of 2,4-D on the respiration rate and ethylene production of Bartlett pears and Red Delicious apples

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