Index Catalog // ScholarsArchive@OSU

Accumulation of dietary polychlorinated biphenyl by rainbow trout (Salmo gairdneri)

Creator:: Lieb, Andrew James
Abstract:: This study was conducted to investigate the accumulation of dietary polychlorinated biphenyls (PCB's) by a Mt. Shasta strain of rainbow trout (Salmo gairdneri). A commercial mixture of PCB's (Aroclor 1254) was added to the diet at a level of 15 ppm on a dry weight basis. Accumulation of PCB's was...
Resource Type:: Masters Thesis
Full Text:: - liquid chromatograph (GLC) equipped with an electron capture (EC) detector. The relative

The effect of etches on surface recombination in silicon

Creator:: Cheng, Dan Sang
Abstract:: This thesis presents a limited investigation of the effects of various etches on the surface properties of silicon. Surface recombination velocities of silicon under different etching treatments are compared by using the photoelectromagnetic effect. A measure of the minority carriers lifetime by the photoconductive decay method provides another means of...
Resource Type:: Masters Thesis
Full Text:: follows: EC = energy level of bottom of conduction band Ev = energy level of top of valence band EF

Surface Water - Groundwater Interactions in Clayey Pasture fields in the WIllamette Valley

Creator:: Gómez, Daniel G.
Abstract:: As the western United States continues to experience prolonged drought that is extending water deficits and threatening ecosystem resilience and socioeconomic systems, it will be vital to understand the relationship between water use and transport for proper water resource management. This is especially important to the agricultural areas of the...
Resource Type:: Masters Thesis
Full Text:: electrical conductivity (Soil EC, in uS/m), and groundwater electrical conductivity (GW EC, in uS/m) for

The design and evaluation of three "stream simulation" culverts in south central Oregon

Creator:: Reba, Michele L.
Abstract:: Three culverts, judged to be fish barriers, were replaced with "stream simulation" culverts on the Fremont National Forest of south central Oregon. The culvert sites are located in the Fort Rock Basin in streams that are home to resident Great Basin redband trout (Oncorhynchus mykiss). Great Basin redband trout is...
Resource Type:: Masters Thesis

Multiple-resistant Italian ryegrass (Lolium perenne spp. multiflorum) populations in Oregon

Creator:: Liu, Mingyang
Abstract:: Italian ryegrass (Lolium perenne spp. multiflorum) is a common weed management problem in turfgrasses, cereals and non-crop areas in the United States. In Oregon, the number of populations with multiple-resistance continues to increase. To manage these resistant populations, the resistance patterns must be determined. In this study, five Italian ryegrass...
Resource Type:: Masters Thesis

Quantification of total and plastic 3D strain fields within micro-damaged polyurethane foam

Creator:: Sutton, Matthew T.
Abstract:: Local material damage that occurs within cellular solids, such as polymer foams and trabecular bone, and precedes local fractures of the cell struts or walls is called micro-damage. The accumulation of micro-damage within cellular solids is often undesirable, although it is thought to be vital to the development and health...
Resource Type:: Masters Thesis
Full Text:: S2 SJ S4 S5 S6 (1-Esec,§6/E,ec,so) Al 90.3 89.4 88.7 86.8 84.3 81.9 79.7 0.117 A2 85.7 86.5 85.7

The design, construction and calibration of a low-energy, low exposure-rate ionization chamber

Creator:: Clarke, Arthur Porter
Abstract:: A low-energy, low-exposure-rate, guarded-field ionization chamber system with a sensitive volume of approximately 1040 cm³ and an exposure-rate range from 60 mR/h to less than 0.5 mR/h was designed, constructed and calibrated. The calibration was effected by constructing and calibrating a 60 cm³ volume transfer chamber of similar design against...
Resource Type:: Masters Thesis
Full Text:: chamber voltages. Selected leakage-rate observations are tabulated in Table 3. The columns headed Ec and

Evaluation of selected marginal aggregates stabilized with cement

Creator:: Chang, Chen
Abstract:: Coastal Oregon is deficient in quality construction aggregate. There is, however, an abundance of lower quality, or marginal aggregate available for construction purposes. The purpose of this report is to develop techniques for upgrading marginal aggregates with portland cement and methods for evaluating the relative performance of these stabilized materials...
Resource Type:: Masters Thesis
Full Text:: is related to the strain by the following equation: R - Et Ec where R = radius of curvature h

Proportional integral derivative control of an oil-heated fractal-like branching microchannel desorber

Creator:: Davis, Keith R.
Abstract:: A PID controller was designed to control the performance of an oil-heated fractal-like branching microchannel desorber for use in an ammonia-absorption refrigeration system. Both the amount and concentration of ammonia refrigerant generated at the desorber can be controlled by choosing the rectified circulation ratio as the controlled variable in a...
Resource Type:: Masters Thesis

A myxosporidian from the musculature of spring Chinook salmon

Creator:: Wyatt, Ellis Junior
Resource Type:: Masters Thesis
Full Text:: doubtful. Yasutake and Wood (20, p.636) also make note of the possible 15 consequences of

ScholarsArchive@OSU

Accumulation of dietary polychlorinated biphenyl by rainbow trout (Salmo gairdneri)

The effect of etches on surface recombination in silicon

Surface Water - Groundwater Interactions in Clayey Pasture fields in the WIllamette Valley

The design and evaluation of three "stream simulation" culverts in south central Oregon

Multiple-resistant Italian ryegrass (Lolium perenne spp. multiflorum) populations in Oregon

Quantification of total and plastic 3D strain fields within micro-damaged polyurethane foam

The design, construction and calibration of a low-energy, low exposure-rate ionization chamber

Evaluation of selected marginal aggregates stabilized with cement

Proportional integral derivative control of an oil-heated fractal-like branching microchannel desorber

A myxosporidian from the musculature of spring Chinook salmon

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