Index Catalog // ScholarsArchive@OSU

The Oregon Forest Products Laboratory

Creator:: Baker, William J., Plow, R. H., and Oregon Forest Products Laboratory
Abstract:: Revised June 1952.
Resource Type:: Technical Report
Full Text:: Laboratory Compiled and edited by William J. Baker Revised by R. H. Plow A Release of the Oregon Forest

Modeling of metal-plate-connected wood truss joints

Creator:: Vatovec, M., Miller, T. H., and Gupta, R.
Abstract:: A commercially available, three-dimensional finite-element analysis software was used to model the load-displacement behavior of metal-plate-connected (MPC) joints in wooden trusses. Model features included consideration of material properties, teeth-to-grain-to-direction-of-force orientation, wood-to-wood interaction, and gaps between wood members. To simulate wood-to-plate interaction, the main feature of the model, each tooth of...
Resource Type:: Article
Full Text:: OF METAL-PLATE-CONNECTED WOOD TRUSS JOINTS M. Vatovec, T. H. Miller, R. Gupta ABSTRACT. A

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:: moisture ratio (rθ) for the stand is calculated asrθ = (available soil water content + water balance

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:: International, LLC, Batavia, IL, USA) and sealed to prevent evaporation. Water was extracted for 4 h from the

Financial feasibility of marker-aided selection in Douglas-fir

Creator:: Johnson, G. R., Wheeler, N. C., and Strauss, S. H.
Abstract:: The land area required for a marker-aided selection (MAS) program to break-even (i.e., have equal costs and benefits) was estimated using computer simulation for coastal Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) in the Pacific Northwestern United States. We compared the selection efficiency obtained when using an index that included the phenotype...
Resource Type:: Article
Full Text:: a2 pm p2 2 2y y= ( )r h , andrpm is the correlation between the phenotype and marker score Because

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

Investigation of limestone ecotypes of white spruce based on a provenance test series

Creator:: Lesser, Mark R., Cherry, Marilyn, and Parker, William H.
Abstract:: Previous laboratory and field studies have presented evidence for the existence of limestone ecotypes in white spruce (Picea glauca (Moench) Voss). Remeasurements of the range-wide 410 series of provenance trials were used for further evaluation of the existence of these ecotypes. In 2001, heights were measured of 23 provenances grown...
Resource Type:: Article
Full Text:: provenance test series Mark R. Lesser, Marilyn Cherry, and William H. Parker Abstract: Previous laboratory

Modeling of metal-plate-connected wood truss joints: Part II - application to overall truss model

Creator:: Vatovec, M., Miller, T. H., Gupta, R., and Lewis, S.
Abstract:: A previously developed, three-dimensional (3-D) finite-element (FE) joint model and several two-dimensional (2-D), beam-element based FE models with different joint-stiffness assumptions (pinned, rigid, and semi-rigid) were used to analyze the full-scale behavior of a metal-plate-connected (MPC) wood scissors truss. The truss displacement and force results were investigated for sensitivity with...
Resource Type:: Article

Bevel siding from common lumber

Creator:: Frashour, R. G., Cooke, W. H., and Oregon Forest Products Laboratory
Abstract:: Need for increased outlets for common boards led to a study of lalllinated bevel siding. Low-grade boards of Douglas fir and ponderosa pine were bonded with exterior glue to veneer covering and resin-fiber overlay to form panels subsequently ripped to width and bevel-sawed into siding, Grooves in the lumber core,...
Resource Type:: Technical Report

First-year performance of 1-0 containerized Douglas-fir seedlings on droughty sites in southwestern Oregon

Creator:: Hobbs, Stephen D., Oregon State University. Forest Research Laboratory, Byars, R. H ., Henneman, D. C., and Frost, C. R.
Abstract:: The effects of artificial shading and aspect on the performance of 1-0 container-grown Douglas-fir seedlings were evaluated 1 year after outplanting on four different aspects in southwest Oregon. The test areas, all characterized by steep slopes and shallow, skeletal soils with a surface mantle of loose rock and logging slash,...
Resource Type:: Technical Report
Full Text:: SITES IN SOUTHWESTERN OREGON S. D. HOBBS R. H. BYARS D. C. HENNEMAN C. R. FROST OREGON SCHOOL OF

ScholarsArchive@OSU

The Oregon Forest Products Laboratory

Modeling of metal-plate-connected wood truss joints

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

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

Financial feasibility of marker-aided selection in Douglas-fir

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

Investigation of limestone ecotypes of white spruce based on a provenance test series

Modeling of metal-plate-connected wood truss joints: Part II - application to overall truss model

Bevel siding from common lumber

First-year performance of 1-0 containerized Douglas-fir seedlings on droughty sites in southwestern Oregon

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