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Detecting early decay and estimating residual strength of Douglas-fir heartwood by infrared and ultraviolet spectrophotometry

Creator:: Gibson, David G. (David Glenn), 1958-
Resource Type:: Masters Thesis
Full Text:: : Detecting Early Decay and Estimating Residual Strength of Douglas-fir Heartwood by Infrared and

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:: VARIABLES IN RELATION TO THEIR EFFECT ON TENSILE STRENGTH OF DOUGLA Abstract approved A microscopic study

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:: -Fir R. D. Gya am R. L. Krahmer Three methods--radial compression strength, color indicators of

Microdistribution and retention of chloropicrin in wood

Creator:: Goodell, Barry Scott
Abstract:: Quantitative and qualitative information on the retention of chlorinated residues in chloropicrin treated wood is lacking. Retention of chloropicrin and its chemical breakdown products in wood, and the effects of chloropicrin treatment of wood on invading decay fungi are explored in this thesis. Chlorinated residues in amounts up to 1.5%...
Resource Type:: Dissertation
Full Text:: Retention of Chloropicrin in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco] Heartwood Quantitative and

The bleaching response of kraft pulps from fresh and aged commercial Douglas-fir chips

Creator:: Lai, Jinn-Hsing
Resource Type:: Masters Thesis

Anatomical and chemical characteristics of the Douglas-fir (Pseudotsuga menziesii (mirb.) Franko) phellem cell

Creator:: Litvay, John Dennis
Abstract:: The objectives of this study were to 1) characterize the layering in the wall of the Douglas-fir (Pseudotsuga. menziesii (Mirb. ) Franco) phellem cell, 2) determine the pitting present in this cell wall and 3) determine what compounds are present in the middle lamella of this cell. To accomplish the...
Resource Type:: Dissertation

Douglas-fir bark : water-soluble carbohydrates and alkaline degradation of a xylan

Creator:: Zerrudo, Jose Velmonte
Resource Type:: Dissertation

The influence of seed source origin and phenological characteristics on wood quality in a young Douglas-Fir Provenance Plantation

Creator:: Robinson, Walter P.
Abstract:: The relationships of several wood quality traits with seed origin and phenological characteristics, measured at a young age, were tested from six seed sources in a young Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) provenance plantation. The wood quality traits measured were wood density, uniformity of wood density, percentage latewood, fiber length,...
Resource Type:: Masters Thesis

Effect of seedling characteristics on Kraft pulping properties of young Douglas-fir

Creator:: Chia, Shun Nan
Abstract:: A study has been made of the kraft pulping properties of young Douglas-fir trees which were thinned from an experimental plantation. The purpose of the plantation study is to determine, whether two year old seedlings can be selected on the criteria of height and branch count for future desirable tree...
Resource Type:: Masters Thesis

Determining moisture content and moisture sorption in Douglas-fir bark

Creator:: Litvay, John Dennis
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Detecting early decay and estimating residual strength of Douglas-fir heartwood by infrared and ultraviolet spectrophotometry

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

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

Microdistribution and retention of chloropicrin in wood

The bleaching response of kraft pulps from fresh and aged commercial Douglas-fir chips

Anatomical and chemical characteristics of the Douglas-fir (Pseudotsuga menziesii (mirb.) Franko) phellem cell

Douglas-fir bark : water-soluble carbohydrates and alkaline degradation of a xylan

The influence of seed source origin and phenological characteristics on wood quality in a young Douglas-Fir Provenance Plantation

Effect of seedling characteristics on Kraft pulping properties of young Douglas-fir

Determining moisture content and moisture sorption in Douglas-fir bark

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