Index Catalog // ScholarsArchive@OSU

An investigation of furrow advance rates under surge flow irrigation

Creator:: Hunsaker, Douglas James
Abstract:: The intermittent or cyclic application of water to furrows or borders, a method known as "surge flow irrigation", can significantly improve the advance characteristics of surface irrigation. Numerous field studies have shown that the advance of furrows is considerably more rapid when irrigated by surge flow than by the conventional,...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Douglas James Hunsaker for the

Taxonomy and systematic relationships of tui chubs (Siphateles: Cyprinidae) from Oregon's Great Basin

Creator:: Remple, Stacy L.
Abstract:: There are three recognized species of Siphateles from the Great Basin; S. alvordensis, S. boraxobius and the tui chub, S. bicolor. One species, S. boraxobius, is endangered and one population of tui chub at Hutton Spring is threatened. Despite several morphological and molecular studies, the taxonomy and relationships of tui...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: _______________________________________________________________ Douglas F

Influence of habitat characteristics on Greater sage-grouse reproductive success in the Montana Mountains, Nevada

Creator:: Rebholz, James L.
Abstract:: Greater sage-grouse (Centrocercus urophasianus) populations have declined across their geographic range during the last century. They were once widespread throughout the Intermountain West, but lower annual productivity, likely caused by degradation and loss of suitable habitat, has greatly reduced their distribution and population densities. Habitat used for reproduction has been...
Resource Type:: Masters Thesis
Full Text:: Model AN ABSTRACT OF THE THESIS OF James L. Rebholz

Motion picture study of a vertical climbing film in an annular duct

Creator:: Scott, Bruce Douglas
Abstract:: This paper describes a study of two-phase gas-liquid vertical annular climbing film flow. Using a high speed Fastax movie camera, motion was slowed sufficiently to facilitate detailed analysis of the climbing film structure, based on single frame projections. The dynamic characteristics of the liquid film could likewise be obtained, though...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF BRUCE DOUGLAS SCOTT for the

A monitoring system for identifying and recording land conversion in agricultural lands with SCS Soil Capability Classes I-IV

Creator:: Parker, Douglas Stuart
Abstract:: This paper discusses the structure, rationale, and application of a monitoring system specifically designed to identify and record conversion of lands with Soil Conservation Service Soil Capability Classes I-IV. Research methodology and design are structured to objectively assess the rates of agricultural land conversion to non-farm uses over a given...
Resource Type:: Capstone Project
Full Text:: CONVERSION IN AGRICULTURAL LANDS WITH SCS SOIL CAPABILITY CLASSES I - IV by DOUGLAS STUART PARKER A

Reproduction and growth of the Pacific basket-cockle, Clinocardium nuttallii Conrad, from intertidal and subtidal environments of Netarts Bay

Creator:: Ratti, Frank Douglas
Abstract:: Age structure and growth of shells of the Pacific basket-cockle, Clinocardium nuttallii in Netarts Bay, Oregon, were investigated with special emphasis on the differences between subtidal and intertidal populations. The cockle was chosen for study because its growth is highly sensitive to physical factors in the environment. Evidence is presented...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Frank Douglas Ratti for the degree

Radiation from an infinite plane to parallel rows of infinitely long tubes - hottel extended

Creator:: Qualey, Douglas L.
Abstract:: A two-dimensional model for predicting the rate of radiation heat transfer for the interior of an industrial furnace is described. The model is two-dimensional due to the assumptions of the heat source as an infinite radiating plane and the heat sink as rows of parallel tubes that are both infinite...
Resource Type:: Masters Thesis
Full Text:: infinitely long tubes - hottel extended AN ABSTRACT OF THE THESIS OF Douglas L. Qua ley for the degree

Resin efficiency : the effect of varying resin distributions upon resin performance in particleboard

Creator:: Hill, Michael Douglas
Abstract:: Past research has implied that differences in blender performance between commercial and laboratory particleboard blenders may not be attributed to resin distribution between screen fractions, as is commonly believed in the industry today, but to which particles within a screen fraction have resin and which do note To test this,...
Resource Type:: Masters Thesis

Physiological responses of the marine phytoplankton Dunaliella tertiolecta to UV-B enhanced solar radiation

Creator:: Scott, James Douglas
Resource Type:: Masters Thesis
Full Text:: Dunaliella tertiolecta to UV-B Enhanced Solar Radiation AN ABSTRACT OF THE THESIS OF James Douglas Scott

Variations in Alsea River flow: implications for Alsea Spit & inlet stability

Creator:: O'Neil, Douglas James
Abstract:: Based in part on previous work by this researcher, variables assumed to play a minor part in the process/ response system examined by the OSU Alsea Bay Hazard Study Team (1985-87)--river input and subsequent variations in hydrology--were more completely analyzed for their range of effects on the stability of Alsea...
Resource Type:: Capstone Project
Full Text:: & INLET STABILITY by DOUGLAS JAMES O'NEIL submitted to THE DEPARTMENT OF GEOGRAPHY in partial

ScholarsArchive@OSU

An investigation of furrow advance rates under surge flow irrigation

Taxonomy and systematic relationships of tui chubs (Siphateles: Cyprinidae) from Oregon's Great Basin

Influence of habitat characteristics on Greater sage-grouse reproductive success in the Montana Mountains, Nevada

Motion picture study of a vertical climbing film in an annular duct

A monitoring system for identifying and recording land conversion in agricultural lands with SCS Soil Capability Classes I-IV

Reproduction and growth of the Pacific basket-cockle, Clinocardium nuttallii Conrad, from intertidal and subtidal environments of Netarts Bay

Radiation from an infinite plane to parallel rows of infinitely long tubes - hottel extended

Resin efficiency : the effect of varying resin distributions upon resin performance in particleboard

Physiological responses of the marine phytoplankton Dunaliella tertiolecta to UV-B enhanced solar radiation

Variations in Alsea River flow: implications for Alsea Spit & inlet stability

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