Index Catalog // ScholarsArchive@OSU

Distribution and life history of the black pocket gopher, Thomomys niger Merriam

Creator:: Walker, Kenneth Merriam
Resource Type:: Masters Thesis
Full Text:: Distribution and life history of the black pocket gopher

Plant colonization of gopher mounds in adjacent pasture and prairie communities

Creator:: Macdonald, Catherine A.
Abstract:: I used field experiments to study how plants in two grassland communities colonized soil mounds made by the Camas pocket gopher, Thomomys bulbivorus (Richardson). I identified potential mound colonizers in each source of colonization (buried propagule bank, seed rain, and established vegetation) and then measured species specific rates of colonization...
Resource Type:: Masters Thesis
Full Text:: tunnelling by small mammals and invertebrates (e.g., gophers, moles, mice, ground squirrels, wood chucks

Home range, dispersal, homing and density of the Townsend mole Scapanus townsendii (Bachman) near Tillamook, Oregon

Creator:: Giger, Richard D.
Abstract:: Home range, dispersal, homing and density of Townsend's mole, Scapanus townsendii (Bachman), were studied during 1964 near Tillamook, Oregon. Additional information on the success of marking and capture techniques and the response of moles to flooding was gathered. This study was initiated to supply information which might aid in the...
Resource Type:: Masters Thesis
Full Text:: Townsend's moles . . . . . 11 4 Home range of adult female Townsend' s mole, based on live captures and

The feeding habits of the Mazama pocket gopher in the pine region of South-Central Oregon

Creator:: Burton, Douglas Harlow
Abstract:: The objective of this study was to determine the feeding habits of the Mazama pocket gopher (Thomomys mazama Merriam) in the pine region of south-central Oregon. Damage caused by pocket gophers to conifer regeneration was a major incentive for this research. A permanent reference collection, consisting of epithelial tissue from...
Resource Type:: Masters Thesis

Relation of the northern pocket gopher to forest habitats in south-central Oregon

Creator:: Anderson, R. J.
Abstract:: Reduction of pocket gopher damage to conifer seedlings is important to successful reforestation in many regions of the Pacific Northwest. The objective of this study was to determine the factors that influence the local distribution of the northern pocket gopher (Thomomys talpoides Richardson) in a forested region of south-central Oregon....
Resource Type:: Masters Thesis

The life history and ecology of Townsend's mole Scapanus townsendii (Bachman) in Tillamook County, Oregon

Creator:: Pedersen, Richard J.
Abstract:: Townsend's mole, Scapanus townsendii (Bachman), was studied by live trapping, dead trapping, and observation from July 1961, to July 1963, in Tillamook County, Oregon. This study was initiated at the request of Tillamook County farmers to determine biological facts that would assist them in their efforts to control this small...
Resource Type:: Masters Thesis
Full Text:: . Primary predators of this mole are domestic dogs and cats. Juvenile moles are killed by cattle stepping

Geographic distributions of prey of the northern spotted owl in the central western Cascades, Oregon, 1988-2009

Creator:: Smoluk, Alexis
Abstract:: Spatial variation in the diet of the northern spotted owl (Strix occidentalis caurina) influences owl home ranges, and understanding this relationship will aid managers in forest management prescriptions that influence spotted owl recovery. This study describes the spatial variation in owl diet based on 4183 prey collected at 114 owl...
Resource Type:: Masters Thesis
Full Text:: , especially red tree voles (Arborimus longicaudus), pocket gophers (Thomomys mazama), and rabbits/hares

Kinetic studies of the oxygen requirement of some amine oxidases

Creator:: Swindell, Robert Malcolm
Abstract:: Some kinetics of the oxygen requirement of amine oxidases have been investigated using bovine plasma monoamine oxidase (PAO) and pea seedling diamine oxidase (DAO). A system is described for studying enzyme reactions under controlled oxygen tension and in an O₂-free N₂ atmosphere. O₂ Km values were determined at two different...
Resource Type:: Masters Thesis
Full Text:: -4 to 10 -6 M depending on the enzyme and amine present in the reaction mixture. Ratios of moles

A preliminary investigation of the spotted owl in Oregon

Creator:: Forsman, Eric D.
Abstract:: Between 1970 and 1974, data were collected on the distribution and biology of the spotted owl (Strix occidentalis) in Oregon. One-hundred and sixteen pairs and seven single birds were located. Spotted owls occurred throughout the mountains of western Oregon and on the east slope of the Cascade Range at least...
Resource Type:: Masters Thesis
Full Text:: princeps), and small birds. Predation on showshoe hares, gophers, moles, and insects was heaviest during

Depositional origin of Mima mounds

Creator:: Paeth, Robert C.
Abstract:: An investigation was conducted to determine the origin of Mima mounds in Jackson County, Oregon and Thurston County, Washington. Data on soil morphology, mineralogy, and particle size distribution were used to test the periglacial ice wedge hypothesis, the gopher hypothesis, the erosional hypothesis, and the loess hypothesis. The results of...
Resource Type:: Masters Thesis

Growth, fabrication and testing of pseudomorphic P-channel GaAs/InGaAs/AlGaAs MODFETS

Creator:: Schulte, Donald W.
Abstract:: This thesis reports on the growth and characterization of p-type pseudomorphic A1GaAs /InGaAs /GaAs modulation doped field effect transistor (MODFET) structures. A series of different p-type MODFET structures were grown with a systematic variation of the indium mole fraction and quantum well width of the InGaAs channel region. Extensive characterization...
Resource Type:: Masters Thesis
Full Text:: with a systematic variation of the indium mole fraction and quantum well width of the InGaAs channel

A bacterial disease of the American shad (Alosa sapidissima)

Creator:: Rothman, Stanley
Abstract:: For the past six years a bacterial infection has been the cause of large losses of adult, spawning, American shad (Alosa sapidissima) in the Coos, Millicoma and Smith Rivers of Oregon. There was a sizable commercial fishery for shad in these rivers and losses of fish due to this infection...
Resource Type:: Masters Thesis
Full Text:: , animal infection, sero- logical tests, and determination of the mole percent guanine + cytosine showed

Characterization of phenolics in Marion and Evergreen blackberries

Creator:: Siriwoharn, Thanyaporn
Abstract:: Frozen Marion (Rubus sp. hyb) and Evergreen blackberries (Rubus laciniatus) (whole berries, berries without seeds, and seeds alone) were acetone/ chloroform extracted. Phenolics were isolated using C₁₈ cartridges and polyamide resins, then characterized and measured by reversed-phase HPLC/diode array spectral techniques. The Polyamide isolated fractions of Marion berries contained four...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Food Science and Technology presented on December 12. 2001. Title

Determining the Influence of Nutrition and Temperature on the Growth and Development of Camassia spp.

Creator:: Davis, Matthew C.
Abstract:: As a key historic component of prairies in the Pacific Northwest, Camassia spp. should play a role in the restoration of these ecosystems. To do so effectively, further study of Camassia spp. propagation is warranted. Thus, the growth, N uptake and allocation, and seasonal thermoperiodicity of Camassia spp. was examined....
Resource Type:: Masters Thesis
Full Text:: pocket gophers (including the aptly named camas gopher) are known to eat and larder hoard the bulbs

The effect of synthesis variables on composition and reactivity of phenol-formaldehyde resins

Creator:: Parker, Robert John
Abstract:: This research related resin synthesis variables of phenolformaldehyde resins to their chemical content and reactivity. The study was part of a larger project correlating resin properties to their performance as plywood adhesives. Formaldehyde-to-phenol and Na0H-to-phenol mole ratios were examined within the ranges used commercially. I also examined various proportions of...
Resource Type:: Masters Thesis
Full Text:: performance as plywood adhesives. Formaldehyde-to-phenol and Na0H-to-phenol mole ratios were examined within

Nutritional and biochemical characterization of Moraxella species isolated from fishery sources

Creator:: Vernon, Stephen M.
Abstract:: One hundred and fourteen strains of Moraxella species isolated from marine fishery sources were investigated to determine the cause of this organism's predominance in seafood. The nutritional requirements, effect of pH, NaCl concentration, and temperature on growth, utilization of carbohydrates, protein, and lipid, resistance to 12 antibiotics, sensitivity to phenethyl...
Resource Type:: Masters Thesis
Full Text:: 42.8 to 44.4. No relationship was ob- served between G+C mole % and other parameters: penicillin

Experimental and mathematical procedures for the estimation of shelf-life : application to temperature-abused chilled seafood

Creator:: Almonacid-Merino, Sergio Felipe
Abstract:: The validation and potential use of mathematical models to estimate the shelf-life of refrigerated food exposed to temperature abuse and basing such estimations on microbial growth was analyzed. Combined heat transfer, microbial growth models, and non-parametric statistical procedures formed a computer-based predictive tool to assess shelf-life and estimate the accuracy...
Resource Type:: Masters Thesis
Full Text:: 109±3.4 J/mole and 48.3±1.5 for the exponential phase of this microbial mixture. The values for the

Preparation and reactions of 7-bicyclo [3.3.1] nonen-2-one

Creator:: Salisbury, Kirby Grant
Abstract:: 2-Carboxy-3(3-cyclohexen-1-yl)propionic acid, 3-(3-cyclohexen-1-yl)propionic acid and 3-(3-cyclohexen-1-yl)propionyl chloride were prepared in sequence from ethyl-2-carbethoxy-3-(3-cyclohexen-1-yl)propionate. Cyclization of 3-(3-cyclohexen-1-yl)propionic acid in polyphosphoric acid resulted in the formation of 4, 5, 6, 7-tetrahydroindanone which was identified by its ultraviolet spectrum and its physical properties. 7-Bicyclo[3.3.1] nonen-2-one was prepared by a Friedel-Crafts cyclization of 3-(3-cyclohexen-1-yl)-propionyl...
Resource Type:: Masters Thesis
Full Text:: /mole -hour (30). Ringold and his coworkers (24, 25, 26) predict from their ex- perimental results

Modeling and simulation of CF₄/O₂ microwave plasma afterglows

Creator:: Camara, Amadou Tidiane
Abstract:: A gas phase kinetic model for the CF₄/O₂ microwave discharge plasma and afterglow of our laboratory has been developed. A reaction pathway identifying the major chemical reactions is proposed. The rate coefficients of the electron impact dissociation reactions are determined at three different plasma powers using both published electron molecule...
Resource Type:: Masters Thesis
Full Text:: torr and 100 W 5.5 Calculated CF4 conversion as a function of mole % CF4 in 62 the feed for data

Photochemical reduction of carbon dioxide in aqueous and ionic liquid solutions in a microreactor with TiO₂ catalyst; experiment and modeling

Creator:: Campbell, Travis J.
Abstract:: Microtechnology was used to study the chemical reduction of dissolved carbon dioxide into useful products. A novel TiO₂ photocatalyst was used to activate the reaction under ultraviolet irradiation. CO₂ was dissolved in aqueous and 50% BMIM-BF₄ (ionic liquid) solutions. The introduction of an ionic liquid increased the solubility of CO₂...
Resource Type:: Masters Thesis
Full Text:: , 2011 Title: Photochemical Reduction of Carbon Dioxide in Aqueous and Ionic Liquid Solutions in a

Investigation of a new resin as an exterior adhesive to bond high moisture content veneers

Creator:: Clark, Randy Jon
Abstract:: A new carbohydrate-phenol based resorcinol resin (CPR resin) was synthesized by end capping a known carbohydrate-phenol based resole with resorcinol under basic reaction conditions. Synthetic parameters, such as duration of cook, pH, and the amount of resorcinol and formaldehyde were varied to produce resins with molecular weights (Mw) ranging from...
Resource Type:: Masters Thesis

Thermolysis of cis,cis,trans-1-phenyl-1,3,5-heptatriene

Creator:: Tilton, Mary Lehman
Abstract:: Isomerically pure cis,cis,trans-1-pheny1-1,3,5- heptatriene was prepared and cyclized. Ring closure was followed by a 1,5 hydrogen shift, and the only product observed was 1-phenyl -6-methyl -1,3-cyclohexadiene. Rough first order rate constants for thermolysis and the hydrogen shift were determined. Kinetic estimates indicate that the report of disallowed product in a...
Resource Type:: Masters Thesis
Full Text:: - butadiene isomerization was found to be 20 kcal/mole. Thus the energy difference between the allowed and

Henry's Law constants for pollutants from the wood industry in room temperature ionic liquids

Creator:: Wang, Fujun
Abstract:: The emission of organic compounds from wood manufacturing facilities is an important regulatory concern due to their effects on ambient air quality. Control technologies, such as oxidizers and biofiltration, are used to remove organics from air streams; however, most removal technologies have high costs or cause additional negative environmental impact....
Resource Type:: Masters Thesis
Full Text:: regulatory concern due to their effects on ambient air quality. Control technologies, such as oxidizers and

Diffusion of n-alkanes in polydimethylsilicones

Creator:: Millen, William George
Abstract:: Diffusion of short chain n-alkanes was found to be faster in the polydimethylsilicone elastomer SE-30 than in the polydimethylsilicone oil SF-96-2000. The opposite was true for the longer chain n-alkanes suggesting that choice of stationary phase for gas chromatography would depend on the chain length of sample components. The dependence...
Resource Type:: Masters Thesis
Full Text:: evaporation of n-alkane from SE-30 were determined to be LS = 1. 987(1.805+0.590C) cal/deg-mole and A1-1

Rare, endangered, and recently extirpated mammals in Oregon

Creator:: Olterman, James Howard
Abstract:: This paper lists, and gives individual accounts of, those Oregon mammals that at some time have been referred to as being of a status other than common. Although rare and endangered wildlife species were listed on a national level in the United States, the large areas of land included in...
Resource Type:: Masters Thesis
Full Text:: MASTER OF SCIENCE (Name of student) (Degree) in Fisheries and Wildlife presented on 1iL 1' , 1172

The solid state photochemistry and photophysics of a triphenylmethyl dye cyanide

Creator:: Vernier, David L.
Abstract:: Triphenylmethyl dye cyanides have been known to be sensitive to ultraviolet radiation since early in this century. Under appropriate conditions, exposure to uv leads to heteropolar fission of the C-CN bond (photoionization) and intense coloration due to dye formation. Thin homogeneous films of hexahydroxyethyl pararosaniline cyanide in a nylon matrix...
Resource Type:: Masters Thesis
Full Text:: mole 1 cm 1 at 277 nm) and dye is produced by excitation at wavelengths < 340 nm. The dye absorbs

Evaluation of Rhizobium strains with three Mediterranean forage legumes for biological nitrogen fixation

Creator:: Streeter, Donald J.
Abstract:: Centuries of continuous grain cropping in northern Africa have reduced N levels in soils to a degree such that agricultural production is now largely dependent upon nitrogen fertilizer. Through the identification of highly effective legume and Rhizobium strain combinations, the production of protein-rich livestock forage and green manure can be...
Resource Type:: Masters Thesis
Full Text:: and 162X95 for T. alexandrium produced acetylene reduction activity from 900 to 1000 u moles ethylene

Metabolism of aroma bacteria as related to diacetyl production

Creator:: Brown, Ruth Elaine
Abstract:: Factors influencing diacetyl production by the aroma bacteria Leuconostoc citrovorum and Streptococcus diacetilactis were investigated. When grown in association with lactic streptococci, L. citrovorum strain 91404 decreased in cell numbers from 10⁸ to 10⁶ over two weeks of daily subculturing in sterile non-fat milk incubated at 21°C. The ability to...
Resource Type:: Masters Thesis
Full Text:: influencing diacetyl production by the aroma bacteria Leuconostoc citrovorum and Streptococcus diacetilactis

Preparation and laboratory evaluation of stationary-phase iron-oxide-based adsorbents for removal of metals from waste waters

Creator:: May, Michael Lee
Abstract:: Several potential sorbent materials containing iron oxides were prepared and evaluated for potential to remove divalent metals from waste waters. These included a ferrihydrite-coated sand, maghemite incorporated in Dowex[Trademark] ion exchange resin, gothite and two thermally activated ferrihydrites. Attempts to prepare sorbents from steel shot by coating with ferrihydrite or...
Resource Type:: Masters Thesis
Full Text:: ferrihydritecoated sand and 4.1x10-5 moles per gram of White. Maghemite in Dowex did not provide any additonal zinc

The oxidation of triethylamine by thallium(III) chloride

Creator:: Arneson, Robert Lawrence
Abstract:: The oxidation of triethylamine by the two electron oxidant thallium(III) chloride was studied and the results compared to those when triethylamine is oxidized by copper(II) halides. This study requires anhydrous conditions since in an aqueous system thallium(III) chloride is extensively hydrolyzed and triethylamine causes precipitation of thallium(III) oxide. Most of...
Resource Type:: Masters Thesis
Full Text:: transfer of two electrons, with loss of two protons and two chlorides to produce two moles of hydrogen

Determination of barriers to internal rotation from low temperature heat capacity data

Creator:: Simpson, Kenneth Owen
Abstract:: A method by which barrier heights in potential functions hindering internal rotation in organic molecules can be obtained solely from thermal data for the solid phase is studied. The observed heat capacities are analyzed in terms of contributions from the lattice vibrations, the intramolecular vibrations, the expansion of the lattice,...
Resource Type:: Masters Thesis
Full Text:: trifluoromethanethiol, Calculations show that the barrier values are 540, 340, 280, 1650, and 1630 cal /mole for the

Sterol uptake in Saccharomyces cerevisiae

Creator:: Salerno, Laurel F.
Abstract:: An assay is described to measure sterol uptake in Saccharomyces cerevisiae. This assay involves specific binding of radioactively labelled sterol to actively growing yeast cells. It was found that uptake does not occur in stationary cultures and that some growth is necessary for FY3 , a sterol auxotroph, to take...
Resource Type:: Masters Thesis
Full Text:: cal/mole. In Figure 9, growth rate and sterol uptake are compared. The tight coupling of uptake to

Diethylnitrosamine, ethylnitrosourea, and dimethylbenz(a)anthracene DNA binding studies in the rainbow trout

Creator:: Van Winkle, Samina
Abstract:: Dimethylbenz (a) anthracene (EMBA), a carcinogen that requires metabolic activation to produce active metabolites capable of binding to DNA, has been studied in the trout and other fish. Polycyclic aromatic hydrocarbons (PAH) are of importance as they are ubiquitous in the environment and their carcinogenic effects in fish from contaminated...
Resource Type:: Masters Thesis
Full Text:: 22.4 /xCi/3.9 x 10~2 /mole/fish and adult trout at 284 /xCi/1.58 /mole/fish. Liver CNA was isolated

A computer model of two component mass transfer from single rising gas bubbles in water

Creator:: Gilson, Thomas L.
Abstract:: Mass transfer from a single rising gas bubble in water may be analyzed by numerical methods. In this study the simultaneous differen- tial equations which describe two component mass transfer from a rising gas bubble are solved by numerical integration. This is accomplished using a computer model which employs a...
Resource Type:: Masters Thesis
Full Text:: , composition, and the total number of moles present in the bubble at any time. The bubble may contain up to

Conversion of glucose to hydrogen gas by supercritical water in a microchannel reactor

Creator:: Goodwin, Aaron K.
Abstract:: Glucose was gasified in supercritical water within a microchannel reactor at 650°C 750°C, and 250 bar to yield H2 rich gas with a low concentration of CO. The feed glucose concentration was 0.1 M. Two microchannel reactor configurations were tested at fluid residence times ranging from 0.5 sec to...
Resource Type:: Masters Thesis
Full Text:: techniques. Hydrogen yields averaged 5.7 ± 0.29 and peaked at 6.3 moles of hydrogen gas produced per mole

The preparation of common prebiotic oligosaccharides with defined degree of polymerization

Creator:: Ooi, Megan C. Y.
Abstract:: Prebiotics are a subset of dietary fiber that is growing in demand within the food industry. The health benefits of prebiotics have been well established, leading to the increase in its incorporation into various food products. Given the importance of prebiotics as functional ingredients, it is important to understand their...
Resource Type:: Masters Thesis
Full Text:: weight basis. Results from the moles quantification experiment and NMR analysis confirmed that the DP

Oxidation of hydrocarbon in a carbon nanotube supported corona discharge in micoreactor : oxidation of ethylene

Creator:: Alanazi, Yousef M.
Abstract:: Population growth driven sustainability issues, including the food resource issue, are pressing problems in need of attention. The goal of the present thesis is to examine the ability of an electric non-thermal plasma based microreactor to destroy ethylene, a known plant hormone responsible for losses in the range of 20%...
Resource Type:: Masters Thesis
Full Text:: ethylene, and this is reflected in the energetic efficiency of the system, with about 3x10-10 moles

Multidisciplinary Approach to Evaluate the Effect of Plant Growth Promoting Rhizobacteria (PGPR) on Soil Microbiota and Quality of Strawberries

Creator:: Nam, Jun Haeng
Abstract:: Oregon strawberries are known for their high quality, intense flavor, sweetness, and rich red color. With optimal weather conditions, including rainy and mild seasons, Oregon has one of the best strawberry farming environments. Amongst the factors for a suitable strawberry farming environment, soil significantly influences strawberry growth and quality. The...
Resource Type:: Masters Thesis
Full Text:: the degree of Master of Science in Food Science and Technology presented on December 10, 2021

Study of Garnet Type Electrolyte Li₇La₃Zr₂O₁₂ Structure and Electrochemical Performance

Creator:: Wang, Yan
Abstract:: Cubic phase Li₇La₃Zr₂O₁₂ (LLZO) is a promising solid electrolyte for all solid-state lithium-ion battery, due to its reasonable ionic conductivity, stable against metallic Li, wide chemical window, and thermal and chemical stability. The main aim of this thesis is to investigate the influences of different synthesis methods on the structure...
Resource Type:: Masters Thesis
Full Text:: Type Electrolyte Li7La3Zr2O12 Structure and Electrochemical Performance. Abstract approved

Vertebrates, arthropods, and invasive plants : an investigation of the top-down and bottom-up interactions of multiple herbivore guilds in a grassland system

Creator:: Farrell, Kelly Anne
Abstract:: Humans are increasing the scale and frequency of many natural disturbances, as well as adding novel disturbances to ecosystems. This thesis uses the arthropod community as a metric to examine the multi-trophic responses to disturbances in California grasslands. Chapter 2 explores how the long-term exclusion of native vertebrate herbivores has...
Resource Type:: Masters Thesis
Full Text:: herbivore and detritivore arthropods. Burrowing vertebrates such as gophers reduced the predatory

Simultaneous spectrophotometric determination of calcium and magnesium with Arsenazo III

Creator:: Shafer, Howard Price, II
Abstract:: A dual -pH simultaneous direct spectrophotometric method for the determination of calcium and magnesium using Arsenazo III has been developed. An absorption spectra study was made of Arsenazo III and its magnesium, calcium, strontium, and barium complexes at various pH values. This study showed that total calcium and magnesium can...
Resource Type:: Masters Thesis
Full Text:: true formula weight is 53, which may be due to three moles of water of hydration per mole of Arsenazo

Influence of processing parameters on diffusion of divalent nickel in wet silica sol-gel monoliths

Creator:: Dickson, David J.
Abstract:: The diffusion of divalent nickel (Ni²⁺) from wet silica gels was investigated. Silica gel is gaining interest as an encapsulation matrix for biological components. The transport of biologically relevant species within the gel is determined by the structural characteristics of the gel, which are in turn governed by synthesis parameters....
Resource Type:: Masters Thesis
Full Text:: of two moles of water per mole silica. Temporally separating hydrolysis and condensation also

A reinvestigation of the molecular structure of cyclohexane-1,4-dione by electron diffraction

Creator:: Johnson, Robert David
Abstract:: We have investigated the gaseous structure of cyclohexane- 1,4-dione via electron diffraction. The large amplitude motion, as suggested from spectroscopic, dipole moment and earlier electron diffraction data was studied. The structure was refined in two types of models: a single "distorted boat" conformer, and a model comprised of a superposition...
Resource Type:: Masters Thesis
Full Text:: diffraction. The large ampli- tude motion, as suggested from spectroscopic, dipole moment and earlier

The Conduction Properties of Heavily Acceptor Doped Lead Zirconate Titanate Ceramics

Creator:: Sangwan, Vyomika
Abstract:: Heavily acceptor doped Pb1.02Dx(Zr0.5Ti0.5)1-xO3 ceramics, where A is the dopant, were investigated in this research. Dopants studied included iron, magnesium and manganese at mole concentrations x ≤ 0.20. X-ray diffraction data along with scanning electron microscopy images revealed the solubility limits of these ceramics. All doped compositions exhibited a shift...
Resource Type:: Masters Thesis
Full Text:: this research. Dopants studied included iron, magnesium and manganese at mole concentrations x ≤ 0.20

The effect of air injection at the exhaust ports of a gasoline engine on the oxides of nitrogen emissions

Creator:: Reid, Richard Stowell
Abstract:: The importance of automobile exhaust as a source of atmospheric pollutants has been recognized for several years. With the control of stationary sources in geographic areas such as Los Angeles County, the automobile has become the major uncontrolled source of air pollution. The three major pollutants emitted by automobiles are...
Resource Type:: Masters Thesis
Full Text:: emission standards of 275 ppm hydrocarbons as n-hexane and 1. 5 mole percent carbon monoxide in automotive

Nutritional muscular dystrophy production and pectoral muscle 5'-nucleotidase activity in the chick

Creator:: Roffler, Sheila Ann
Abstract:: In an attempt to find a laboratory species which develops an experimental myopathy similar to white muscle disease (WMD) in lambs, comparative studies of nutritional muscular dystrophy of chicks were initiated. This condition was grossly visible as white striations running parallel with the fibers of the pectoral muscles and was...
Resource Type:: Masters Thesis
Full Text:: Nutritional muscular dystrophy production and pectoral

Absorption of oxygen in water using a multi-stage, crosscurrent packed column

Creator:: Davis, Daniel S. (Daniel Scott), 1958-
Abstract:: A multi-stage, crosscurrent column, packed with Pall rings, was employed for oxygen absorption from an oxygen-rich air phase by contacting with water. Mass transfer data were collected for the column using 6 and 12 baffles and employing a partial gas phase recycle. Data were also collected from a countercurrent column...
Resource Type:: Masters Thesis
Full Text:: the gas stream kg/kg mole 11 Z = humidity, kg H20/kg dry air The constants K1 and K2, used in

A questionaire survey of fish pond practices in Oregon

Creator:: Phillips, Robert Wilson
Resource Type:: Masters Thesis
Full Text:: were made by some other animal such as moles (Scapanus; Neurotrichus gibbsi), gophers (Thomomys) or

Reactions of glucose in H-Y zeolite catalysts

Creator:: Lourvanij, Khavinet
Abstract:: Y-Zeolite catalysts have the potential to promote the shape-selective conversion of glucose to oxygenated hydrocarbons at fairly low temperature (100 to 130°C). Reaction of glucose solution with H-Y Zeolite catalyst powder was carried out in a well-mixed batch reactor. This reaction was studied as a function of reaction time (0...
Resource Type:: Masters Thesis
Full Text:: /mole glucose, also occurred at the same conditions after 75 min (Baugh and McCarty, 1988). Fructose

Degradation and behavior of chlorpyrifos-methyl and propoxur in soil : a comparison between Thailand and Oregon soils

Creator:: Biadul, Pongsri
Abstract:: Chlorpyrifos-methyl, an organophosphate insecticide, and propoxur, a carbamate insecticide both widely used in Thailand, were studied in the laboratory for degradation and behavior in two Thai and two Oregon soils. The purpose of the study was to ascertain the comparative persistence and to measure behavior such as adsorption, evaporation and...
Resource Type:: Masters Thesis
Full Text:: Degradation and behavior of chlorpyrifos-methyl and

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