Index Catalog // ScholarsArchive@OSU

Adsorption of hexavalent and trivalent chromium to a clayey silt soil : batch kinetic and equilibrium studies

Creator:: Bean, Gregory R.
Abstract:: Chromium, an element of widespread use, is toxic in some forms. Improper disposal of waste chromium products has resulted in contamination of many sites throughout the United States, including the United Chrome Products Superfund site in Corvallis, Oregon. A better understanding of chromium chemistry is needed to facilitate the remediation...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Redacted for Privacy Peter 0. Nelson Chromium, an element of widespread use, is toxic

Soil column desorption studies on a chromium contaminated soil

Creator:: Ball, Bruce L.
Abstract:: Soil column studies were performed on a chromium contaminated soil from the United Chrome Products Superfund Site currently undergoing a pump-and-treat cleanup process. The goal of the research was to provide insight into the feasibility of chemically changing the injection fluid of the pump-and-treat system to enhance hexavalent chromium (Cr(VI))...
Resource Type:: Masters Thesis
Full Text:: Soil Abstract approved: Redacted for Privacy rerer U. Nelson Soil column studies were performed on a

The economic feasibility of soybean production in Oregon

Creator:: Holst, David
Abstract:: Commercial production of soybeans in Oregon has been limited. In 1977, less than 1,500 acres were grown, primarily in the Columbia Basin area. However, interest in soybeans as a possible "new crop" for Oregon has arisen because of the (1) recent strong soybean price, (2) the high cost of transporting...
Resource Type:: Masters Thesis
Full Text:: FEASIBILITY OF SOYBEAN PRODUCTION IN OREGON Abstract approved: A. Gene Nelson Commercial production of

Physical factors affecting the spatial distribution of infaunal bivalve assemblages and species along the continental shelf of the Pacific Northwest

Creator:: Labou, Stephanie Grace
Abstract:: The spatial distribution and abundance patterns of benthic infauna result from interactions with a host of environmental variables including sediment characteristics (percent silt-clay, grain size, total organic carbon), depth, temperature, and dissolved oxygen. This thesis focuses on the association of bivalve assemblages and species with potentially influential environmental variables along...
Resource Type:: Masters Thesis
Full Text:: express my gratitude to my advisor, Dr. Sarah Henkel, my committee members Dr. Walt Nelson and Dr

Grape Powdery Mildew Management: The Interaction Between Inflorescence Stage and Fungicide Chemistry

Creator:: Warneke, Brent W.
Abstract:: Grape powdery mildew (GPM, causal agent Erysiphe necator) is the most economically important disease of grapevine in the Western U.S. Low levels of GPM infection on clusters (1-5%) can negatively affect wine sensory quality, so intensive fungicide programs are common. This may lead to problems like excessive fungicide use and...
Resource Type:: Masters Thesis

Is Resistance Futile: Examining Fitness Costs Associated with QoI Resistance in E. necator

Creator:: Newbold, Chelsea L.
Abstract:: Quinone outside Inhibitor (QOI) fungicides are one of the most widely used fungicide classes (FRAC 11) in the world. This popularity is the result of their ability to effectively manage a wide array of economically important pathogen species on a broad range of crops. While having mostly preventative activity, some...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ Walter F. Mahaffee

The use of stable activable tracer in hydrology

Creator:: Chick, Stephen W. K.
Abstract:: A tracer method utilizing stable activable tracers (involving rare earth nuclides with short-lived t[subscript 1/2] < 1 day} activation products) for tracing fluid bound substances in fresh water is explored. Simulated laboratory studies showed these tracers (Dy and in) when chelated with diethylenetriamine2entaacetic acid a7i1W to be stable ( <20%)...
Resource Type:: Masters Thesis
Full Text:: ) ABSTRACT APPROVED: Redacted for Privacy WALTER D. LOVELAND A tracer method utilizing stable activable

The effect of certain production factors and rates of gain on carcass characteristics of beef steers

Creator:: Thompson, Kenneth Earl
Abstract:: The purpose of the present study was to determine the association of initial weight, average daily gain, days on feed, percent total digestible nutrients (TDN) and percent digestible protein in the ration with USDA carcass grade, marbling score, conformation score, back fat thickness and area of longissimus dorsi of beef...
Resource Type:: Masters Thesis
Full Text:: , _ - Dr. Walter H. Kennick Abstract approved: The purpose of the present study was to determine the

Isomeric cross-section ratios of Cd¹¹⁵ and Cs¹³⁴ for charged particle induced fission

Creator:: Shum, Yin-sang
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy Walter D. Loveland The isomer yield ratios of Cd115m(j, Tr = 11/2-) to Cd 1158(J, Tr

Understanding sporulation and dissemination of Podosphaera macularis, hop powdery mildew

Creator:: Peetz, Amy B.
Abstract:: Podosphaera macularis causes one of the most important diseases, powdery mildew, of Humulus lupulus (hop). If left unmanaged, hop powdery mildew can cause total crop loss due to disease or browning of hop cones rendering the cones unmarketable to buyers. The Hop Powdery Mildew Infection Risk Index (HOPS) is heavily...
Resource Type:: Masters Thesis
Full Text:: Powdery Mildew. Abstract approved: Walter F. Mahaffee

ScholarsArchive@OSU

Adsorption of hexavalent and trivalent chromium to a clayey silt soil : batch kinetic and equilibrium studies

Soil column desorption studies on a chromium contaminated soil

The economic feasibility of soybean production in Oregon

Physical factors affecting the spatial distribution of infaunal bivalve assemblages and species along the continental shelf of the Pacific Northwest

Grape Powdery Mildew Management: The Interaction Between Inflorescence Stage and Fungicide Chemistry

Is Resistance Futile: Examining Fitness Costs Associated with QoI Resistance in E. necator

The use of stable activable tracer in hydrology

The effect of certain production factors and rates of gain on carcass characteristics of beef steers

Isomeric cross-section ratios of Cd¹¹⁵ and Cs¹³⁴ for charged particle induced fission

Understanding sporulation and dissemination of Podosphaera macularis, hop powdery mildew

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