Index Catalog // ScholarsArchive@OSU

Sub-regional detention siting : a methodology using GIS

Creator:: Murdock, Carol L.
Abstract:: The Mt. Scott watershed in northern Clackamas County, Oregon is an urban watershed that lies inside the Portland metropolitan urban growth boundary. Urbanization of the watershed began in the early 1970s and has recently accelerated. A landscape level analysis of the urbanization process was combined with the results of a...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Redacted for Privacy Catherine M. Neumann The Mt. Scott watershed in northern

Effect of nutrition on reproductive performance of young female mink

Creator:: Polonen, Ilpo Juhani
Abstract:: Two distinct experiments were conducted. Experiment 1 was conducted to investigate the effects of nutritional conditioning and flushing as a means of improving reproductive performance of female mink. In Exp. 2, vegetable oil and corn syrup were fed during lactation to ascertain whether this nutritional regimen would improve growth of...
Resource Type:: Masters Thesis

Long-term effects of tillage, nitrogen, and rainfall on winter wheat yields

Creator:: Camara, Kelli Marie
Abstract:: Winter wheat is commonly grown in dryland cropping systems in the Pacific Northwest region of semi-arid eastern Oregon. For agronomic, economic, and environmental reasons, it is important to understand the long-term sustainability of such dryland systems. The objective of this study was to evaluate the long-term effects of tillage, nitrogen...
Resource Type:: Masters Thesis
Full Text:: 180 kg ha -I. Soil depth of individual plots ranged from 1.2- to 3 .O-m. The study was divided

Effect of plant surface area on organic carbon removal in wetlands

Creator:: Kuehn, Elaine Jinx
Abstract:: This study investigated the effect of plant surface area (plant density) on the efficiency of organic carbon removal in a bench-scale constructed wetland. Constructed wetlands are commonly assumed to be biofilm reactors in which organic carbon removal occurs primarily through sedimentation and aerobic degradation by attached microbial biofilms. In conventional...
Resource Type:: Masters Thesis
Full Text:: about 0.27 m. The carbon source was diluted ENSUR (TM). Total organic carbon (TOC) removal was

An evaluation of chlorine as a disinfectant for potable water supplies in the United States : weighing the human health risks

Creator:: Monaghan, Pegeen
Abstract:: The removal of microbial populations from potable water has been a practice with great importance towards public health, as it has resulted in the reduction of literally millions of cases of infectious disease. In the United States, pathogenic organisms are most commonly removed from drinking water through the application of...
Resource Type:: Masters Thesis

Potential of a fungus, Acremonium sp., to decolorize pulp mill effluent

Creator:: Lesley, Dawn
Abstract:: This project explored the feasibility of using fungi in a constructed wetland for the treatment of pulp mill effluent. The effluent is high in dissolved lignins (some of which are chlorinated), which have proven very difficult to degrade biologically. Mindful of work done with the (terrestrial) white rot fungi, especially...
Resource Type:: Masters Thesis
Full Text:: of 0.1 M a-naphthol (in 95% ethanol) directly to the growing edge of 5 to 7 day old fungal colonies

Flow characteristics of constructed wetlands : tracer studies of the hydraulic regime

Creator:: Stairs, Darrin B.
Abstract:: Treatment efficiency in a constructed wetland is related in part to the amount of time that a wastewater remains in the system. Current design methods idealize the system as a plug flow reactor and use a "residence time" based solely on the volume of the cell and the flow rate....
Resource Type:: Masters Thesis
Full Text:: -direction, then, F = DAx x ax where, FAX = mass flux of material A in the x direction , [M / L2 T] DX

Monitoring potential groundwater contamination due to agricultural production in Lane County, Oregon

Creator:: Gatchell, Lance O.
Resource Type:: Masters Thesis
Full Text:: subsurface samplers. Soil cores were collected on five farms in Lane County, Oregon at 1 m depth and soil

Historical land use and its impact on Oak Creek, Oregon

Creator:: Yamaguchi, Keiko, 1964-
Abstract:: The purposes of this study were:1) to review the land use history of Oak Creek watershed since European settlement. And 2) to consider the human-caused impacts and their effects associated with different land uses. The study area was classified into three land use patterns: residential,agricultural, and forested areas.Since the European...
Resource Type:: Masters Thesis
Full Text:: Ground Water Quality. Lewis Publishers, Inc. Chelsea, MI. 336 pp. Canter, Larry W. 1985. Environmental

A novel apparatus for estimating pesticide volatility from spray droplets

Creator:: Poel, Jeff D.
Resource Type:: Masters Thesis
Full Text:: chamber began at 1 meter per second (m/sec) and was reduced to an unspecified velocity during the

ScholarsArchive@OSU

Sub-regional detention siting : a methodology using GIS

Effect of nutrition on reproductive performance of young female mink

Long-term effects of tillage, nitrogen, and rainfall on winter wheat yields

Effect of plant surface area on organic carbon removal in wetlands

An evaluation of chlorine as a disinfectant for potable water supplies in the United States : weighing the human health risks

Potential of a fungus, Acremonium sp., to decolorize pulp mill effluent

Flow characteristics of constructed wetlands : tracer studies of the hydraulic regime

Monitoring potential groundwater contamination due to agricultural production in Lane County, Oregon

Historical land use and its impact on Oak Creek, Oregon

A novel apparatus for estimating pesticide volatility from spray droplets

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