Index Catalog // ScholarsArchive@OSU

Nays2D Modelling results for three reaches in the Oregon Coast Range before and after the addition of Large Wood

Creator:: Segura, Catalina and Bair, Russell
Abstract:: This data set includes the calibrated predictions of Depth, Elevation, Water Surface Elevation, Shear Stress, Vorticity, and Froude Number for three reaches in the Mill Creek watershed, a tributary of the Siletz River, Oregon. The predictions are for bankfull flow before and after the addition of Large Wood using Nays2DH,...
Resource Type:: Dataset

FaSTMECH Modelling results for seven different flow levels in Oak Creek, Corvallis Oregon

Creator:: Segura, Catalina and Katz, Scott
Abstract:: These data set includes calibrated predictions of Depth, Velocity and Shear Stress for seven discharges (0.4 to 3.4m^3, equivalent to 0.12 Qbf to Qbf) at Oak Creek using the Flow and Sediment Transport with Morphological Evolution of Channels (FaSTMECH).
Resource Type:: Dataset

Truth to Nature: The Art and Ecology of Hudson River School Painting

Creator:: Loeb, Harper
Abstract:: Beginning with the inception of American art history as a formal discipline in the 1940s, the dominant mode of interpreting nineteenth-century American landscape painting has been to view aspects of the landscape as symbols for grand cultural, religious, national, and moral narratives. While this method of interpretation highlights some key...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Dana R. Warren Peter Betjemann Beginning with the inception of

Applying the dual-isotope conceptual model to interpret physiological trends under uncontrolled conditions

Creator:: Barnard, H. R., Brooks, J. R., and Bond, B. J.
Abstract:: The inter-relationships among δ¹³C and δ¹⁸O in tree ring cellulose and ring width have the potential to illuminate long-term physiological and environmental information in forest stands that have not been monitored. We examine how within-stand competition and environmental gradients affect ring widths and the stable isotopes of cellulose. We utilize...
Resource Type:: Article
Full Text:: ( r) , P v al ue ( P) a nd n um be r of o bs er va tio ns ( N ) fo r th e re

Bees of the Pacific Northwest : key to bumble bee species for males (Hymenoptera : Apidae : Bombus)

Creator:: Best, Lincoln R., Jackson, August S., Rivers, James W., and Williams, Paul H.
Abstract:: This species key to male bumble bees of the Pacific Northwest provides dichotomous couplets which aid the user in identifying 27 species which occur or have occurred historically, and may still be present in the region. The key architecture is based strongly on the key to species for males found...
Resource Type:: Technical Report
Full Text:: Lincoln R. Best August S. Jackson James W. Rivers Paul

Effect of growth ring orientation and placement of earlywood and latewood on moe and mor of very-small clear Douglas-fir beams

Creator:: Grotta, A. T., Leichti, R. J., Gartner, Barbara L., and Johnson, G. R.
Abstract:: ASTM standard sizes for bending tests (either 50 × 50 mm or 25 × 25 mm in cross-section) are not always suitable for research purposes that characterize smaller sections of wood. Moreover, the ASTM standards specify loading the sample on the longitudinal-tangential surface. If specimens are small enough, then the...
Resource Type:: Article
Full Text:: , OR 97331 and G. R. Johnson Research Geneticist USDA Forest Service Pacific Northwest Research

Analysis of metal-plate-connected wood trusses with semi-rigid joints

Creator:: Gupta, R., Gebremedhin, K. G., and Cook, J. R.
Abstract:: Metal-plate-connected wood trusses with semi-rigid joints were investigated by the matrix method of structural analysis. The element-stiffness matrix and fixed-end forces of an individual member with one or both ends semi-rigid were derived as modifications of the idealized cases. The case of unequal elastic connections at two ends of a...
Resource Type:: Article
Full Text:: joints ANALYSIS OF METAL-PLATE-CONNECTED WOOD TRUSSES WITH SEMI-RIGID JOINTS R. Gupta, K. G

Bees of the Pacific Northwest : key to bumble bee species for females (Hymenoptera : Apidae : Bombus)

Creator:: Best, Lincoln R., Dunlap, Joshua B., Jackson, August S., Rivers, James W., and Williams, Paul H.
Abstract:: This species key to female bumble bees of the Pacific Northwest provides dichotomous couplets which aid the user in identifying 27 species which occur or have occurred historically, and may still be present in the region. The key architecture is based strongly on the key to species for females found...
Resource Type:: Technical Report
Full Text:: for Females (Hymenoptera: Apidae: Bombus) Lincoln R. Best Joshua B. Dunlap August S. Jackson James

Is long primary growth associated with stem sinuosity in Douglas-fir?

Creator:: Gartner, Barbara L. and Johnson, G. R.
Abstract:: Stem sinuosity is a highly visible stem-form trait in the leaders of fast-growing Douglas-fir (Pseudotsuga menziesii var. (Mirb.) Franco) trees, yet its cause is unknown. We tested the hypotheses that sinuous stems have longer expanses of primary growth than nonsinuous stems (putting the leader at higher risk curvature, induction of...
Resource Type:: Article
Full Text:: , there was a tendency toward a significant relationship between the two years (r = 0.272, p = 0.0893

Estimating forest productivity in the eastern Siskiyou Mountains of southwestern Oregon using a satellite driven process model, 3-PGS

Creator:: Coops, N. C. and Waring, R. H.
Abstract:: The 3-PGS (physiological principles for predicting growth using satellite data) model generates monthly estimates of transpiration, photosynthesis, and net primary production (NPP), the latter derived as a fixed proportion (0.47) of gross photosynthesis. To assess the reliability of a simplified process model (3-PGS) to predict the productive capacity of coniferous...
Resource Type:: Article
Full Text:: relative productivity regionally or under different environmental change scenarios (Landsberg et al. 2001

ScholarsArchive@OSU

Nays2D Modelling results for three reaches in the Oregon Coast Range before and after the addition of Large Wood

FaSTMECH Modelling results for seven different flow levels in Oak Creek, Corvallis Oregon

Truth to Nature: The Art and Ecology of Hudson River School Painting

Applying the dual-isotope conceptual model to interpret physiological trends under uncontrolled conditions

Bees of the Pacific Northwest : key to bumble bee species for males (Hymenoptera : Apidae : Bombus)

Effect of growth ring orientation and placement of earlywood and latewood on moe and mor of very-small clear Douglas-fir beams

Analysis of metal-plate-connected wood trusses with semi-rigid joints

Bees of the Pacific Northwest : key to bumble bee species for females (Hymenoptera : Apidae : Bombus)

Is long primary growth associated with stem sinuosity in Douglas-fir?

Estimating forest productivity in the eastern Siskiyou Mountains of southwestern Oregon using a satellite driven process model, 3-PGS

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