Index Catalog // ScholarsArchive@OSU

Bulbous bluegrass (Poa bulbosa)

Creator:: Oregon State University. Extension Service, Oregon State University. Cooperative Extension Service, and Johnson, Victor
Abstract:: Reprinted January 1980. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Range Plant M y Leaflet 3 / Bulbous Bluegrass (Poa bulbosa

Characteristics of semi-insulating GaAs photoconductive detectors under steady state illumination

Creator:: Yang, Howard C.
Abstract:: The optical and electrical characteristics of semi-insulating GaAs photoconductive detectors made with ohmic and Schottky contacts are studied in this thesis. Current - voltage measurements are made both in the dark and under varying power levels of HeNe laser (6328 Å) illumination. DC photocurrent gain is then calculated as a...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy Thomas K. Plant The optical and electrical characteristics of semi

A study of the photoresponse of semi-insulating gallium arsenide

Creator:: Schumm, Gerhard
Abstract:: The photoresponse behavior of semi-insulating GaAs is investigated. The photocarrier lifetime is discussed and the influence of surface and contact recombination is taken into account. Photocurrent-voltage characteristics have been measured and a mechanism for the gain in terms of space charge amplification and avalanching is suggested. The influence of deep...
Resource Type:: Masters Thesis
Full Text:: Gallium Arsenide Abstract approved: Redacted for privacy Thomas K. Plant The photoresponse behavior of

Electrical properties of GaAs FET structures

Creator:: Yang, Fanling Hsu
Abstract:: The electrical properties of ion-implanted GaAs FET channels are investigated by two methods. First, the channel current (I) as a function of voltage (V) is examined at different temperatures and using different voltage ramp rates. The standard FET I-V curve, which can be observed on a commercial curve tracer, is...
Resource Type:: Dissertation
Full Text:: approved: Redacted for privacy T. K. Plant The electrical properties of ion-implanted GaAs FET channels

Invasion by trees into a grassy bald on Marys Peak, Oregon Coast Range

Creator:: Magee, Teresa K.
Abstract:: Grassy balds are meadows that occur on or near the summits of montane peaks and ridges. The sites on which balds are located generally fall within the climatic tolerance ranges of associated tree species. This study evaluates the stability of a forest-meadow transition zone of such a bald on Marys...
Resource Type:: Masters Thesis
Full Text:: Coast Range AN ABSTRACT OF THE THESIS OF Teresa K. Magee for the degree of Master of Science in

Poisonous plants and range management alternatives

Creator:: Bedell, Thomas E. and Oregon State University. Extension Service
Abstract:: Published December 1980. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: range manage- ment means: (1) proper stocking rate, (2) grazing at times when plant productivity will

Pathogenesis and intertree transmission of Verticicladiella wageneri in Douglas-fir (Pseudotsuga menziesii)

Creator:: Hessburg, Paul F.
Abstract:: Verticicladiella wageneri Kendr. is a vascular wilt pathogen of Douglas-fir in the Pacific Northwest, The disease is characterized by black staining of colonized sapwood; crown symptoms are those typical of a wilting syndrome. Histopathological studies revealed that the pathogen is limited to the xylem but causes vascular dysfunction in both...
Resource Type:: Dissertation
Full Text:: the degree of Doctor of Philosophy in Botany and Plant Pathology presented on April 19, 1984 Title

Sethoxydim herbicide in red fescue and bentgrass : levels and mechanisms of selectivity

Creator:: Butler, J. Hugh B.
Abstract:: The herbicide rate required to reduce growth by 50% (GR₅₀) of 11 cultivars of red fesue (Festuca rubra L. and F. rubra ssp. commutata) and for four cultivars of bentgrass (Agrostis tenuis Sibth. and A. stolonifera L. var. palustris) to sethoxydim (2-[1-(ethoxyimino) butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one) was determined in greenhouse and laboratory experiments....
Resource Type:: Dissertation
Full Text:: /ha, 15 kg/ha, and 5.3 mM, respectively. Penncross bentgrass was 400, 1400, and 12,900 times more

Research in rangeland management : 1983 progress report

Creator:: Oregon State University. Agricultural Experiment Station and United States. Department of Agriculture
Abstract:: Published June 1983. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: of our public range- land have been single-use oriented. However, within approximately the last 15

Environmental factors influencing the rate of spread of Phellinus weirii (Murr.) Gilbertson in young-growth Douglas-fir

Creator:: Angwin, Peter A.
Abstract:: Studies to identify the environmental factors that influence the rate of ectotrophic mycelial growth of Phellinus weirii (Murr.) Gilbertson along Douglas-fir roots were undertaken both in the laboratory and in the field. The effects of soil pH, nitrogen, moisture, temperature, microorganisms and bulk density were investigated. In the lab, the...
Resource Type:: Masters Thesis
Full Text:: Angwin for the degree of Master of Science in Botany and Plant Pathology presented on April 15. 1985

ScholarsArchive@OSU

Bulbous bluegrass (Poa bulbosa)

Characteristics of semi-insulating GaAs photoconductive detectors under steady state illumination

A study of the photoresponse of semi-insulating gallium arsenide

Electrical properties of GaAs FET structures

Invasion by trees into a grassy bald on Marys Peak, Oregon Coast Range

Poisonous plants and range management alternatives

Pathogenesis and intertree transmission of Verticicladiella wageneri in Douglas-fir (Pseudotsuga menziesii)

Sethoxydim herbicide in red fescue and bentgrass : levels and mechanisms of selectivity

Research in rangeland management : 1983 progress report

Environmental factors influencing the rate of spread of Phellinus weirii (Murr.) Gilbertson in young-growth Douglas-fir

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