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An econometric analysis of demand and supply relationships in the Douglas fir plywood industry

Creator:: Simpson, Robert Sanford
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Robert Sanford Simpson for the M.S

Some anatomical features of Douglas-fir wood rated permeable and refractory

Creator:: Krahmer, Robert Lee
Resource Type:: Masters Thesis
Full Text:: through capillary tubes of constant diameters apparently can not be readily applied. Hawley (11, p. 19-21

A study of several anatomical variables in relation to their effect on tensile strength of Douglas-fir

Creator:: McMinimy, Lawrence Otto
Abstract:: A microscopic study was conducted on specific gravity wafers taken from standard tensile strength specimens of young growth Douglas-fir. Samples were studied to determine the effect of variables such as percent summerwood, fiber length and fibril angle on tensile strength of Douglas-fir. The sample specimens were picked so effects of...
Resource Type:: Masters Thesis
Full Text:: Douglas-fir. Forest Pro- ducts Journal 12:213-217. 1962. Jayne, B. A. Some mechanical properties of wood

The effect of drought on the rate of photosynthesis, respiration, and transpiration in two ecotypes of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:: Zavitkovski, J.
Abstract:: The subject of this study was the determination of the changes in photosynthesis, respiration and transpiration in two ecotypes of Douglas-fir as caused by decreasing soil moisture content. The photosynthetic rate was also correlated with the relative turgidities of needles. All the above processes were greatly affected by decreasing soil...
Resource Type:: Masters Thesis
Full Text:: (MIRB.) FRANCO) Abstract approved AN ABSTRACT OF THE THESIS OF

The effect of forest stand thinning on selected strength and pulp-ing characteristics of Douglas-fir

Creator:: Johnson, Donna A.
Abstract:: The purpose of this study was to determine if amount and kind of thinning had an effect on wood specific gravity, modulus of rupture, modulus of elasticity, growth rate, or pulp yield and kappa number. The study involved 24 1/5-acre plots, three plots in each of eight thinning treatments. The...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Donna A. Johnson for the degree of

Effect of thinning and fertilization on wood properties and intra-ring characteristics in young Douglas-fir

Creator:: Bodner, Josef
Abstract:: The purpose of this study was to determine if thinning, fertilization or a combination of thinning and fertilization had an effect on overall average specific gravity, modulus of elasticity, modulus of rupture, fiber length and intra-ring characteristics. Material for this experiment consisted of 7 trees randomly selected from each of...
Resource Type:: Masters Thesis
Full Text:: to the addition of fertilizer was drastic. Though fertilizer was applied only once, the effects were

Evaluating radial compression, color indicator and micro-toughness tests to detect early decay in Douglas-fir

Creator:: Smith, Susan M.
Abstract:: Three methods--radial compression strength, color indicators of decay and micro-toughness, an examination of tracheid fracture patterns, were evaluated for detection of early decay and for application to field use. Three-eighth-inch diameter plugs 3/4-inch long, cut from the sapwood and heartwood of a Douglas-fir pole free of decay, were decayed by...
Resource Type:: Masters Thesis
Full Text:: placenta 42 Reaction of color indicators applied to Douglas-fir, sound and decayed by Poria placenta 56

The effects of supercritical CO₂ on the bending properties and treatment defects of four refractory wood species

Creator:: Anderson, Matthew E.
Abstract:: It is difficult to treat the heartwood of many wood species with liquid preservatives using conventional liquid processes. Supercritical fluids (SCF) used as carriers of preservatives to impregnate refractory wood species may be an attractive alternative to conventional liquid carriers. While SCF impregnation has many potential advantages, some wood species...
Resource Type:: Masters Thesis
Full Text:: privacy. AN ABSTRACT OF THE THESIS OF Matthew E. Anderson for the degree of Master of Science in Forest

The chemical nature of Douglas fir cork

Creator:: Hergert, Herbert Lawrence
Resource Type:: Masters Thesis
Full Text:: residue. A standard liin analysis with 72 per cent sulfuric acid was applied to a zo-gram sample of

Top-Down Effects of Wildlife and Bottom-Up Drivers of Soils and Productivity in Intensively Managed Forest Plantations in the Northern Oregon Coast Range

Creator:: Frey, David W.
Abstract:: In intensively managed forest plantations in the northern Oregon Coast Range, herbicides are often applied during site preparation and early stand regeneration to reduce competition for resources for planted conifer seedlings. In addition to reducing competition for crop trees, herbicide applications may affect soil processes including decomposition and nutrient cycling,...
Resource Type:: Masters Thesis
Full Text:: Microsoft Word - FreyDavid2018.docx AN ABSTRACT OF THE

ScholarsArchive@OSU

An econometric analysis of demand and supply relationships in the Douglas fir plywood industry

Some anatomical features of Douglas-fir wood rated permeable and refractory

A study of several anatomical variables in relation to their effect on tensile strength of Douglas-fir

The effect of drought on the rate of photosynthesis, respiration, and transpiration in two ecotypes of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

The effect of forest stand thinning on selected strength and pulp-ing characteristics of Douglas-fir

Effect of thinning and fertilization on wood properties and intra-ring characteristics in young Douglas-fir

Evaluating radial compression, color indicator and micro-toughness tests to detect early decay in Douglas-fir

The effects of supercritical CO₂ on the bending properties and treatment defects of four refractory wood species

The chemical nature of Douglas fir cork

Top-Down Effects of Wildlife and Bottom-Up Drivers of Soils and Productivity in Intensively Managed Forest Plantations in the Northern Oregon Coast Range

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