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Transformation of Western Hemlock Tree Crowns by Dwarf Mistletoe

Creator:: Calkins, Stephen J.
Abstract:: Hemlock dwarf mistletoe (Arceuthobium tsugense subsp. tsugense) is an arboreal, hemiparasitic plant that principally parasitizes western hemlock (Tsuga heterophylla). Hemlock dwarf mistletoe exerts a profound influence on infected trees that can drastically change the structure of the tree crown due to reduced growth, top dieback, branch deformation and death, resulting...
Resource Type:: Masters Thesis
Full Text:: decrease the efficiency of western hemlock foliage and affect the water transport efficiency of infected

Effect of high temperature drying on bending and shear strengths of western hemlock

Creator:: Thiam, Massamba
Abstract:: The advantages of high-temperature drying are faster drying, reduced inventory, reduced energy requirements, and reduced equilibrium moisture content. However the disadvantages are higher initial costs of the kiln, greater power needs, knot dropout, and reduction in some strength properties. The latter was the subject of this study. Three hundred pieces...
Resource Type:: Masters Thesis
Full Text:: of High Temperature Drying on Bending and Shear Strengths of Western Hemlock. Michael R. Milota

The impact of wood variability on the drying rate at different moisture content levels

Creator:: Berberović, Adin
Abstract:: Variability in wood properties causes boards within a stack of lumber to dry at different rates and reach different moisture content levels after drying is completed. The consequence is that the boards will have properties that differ from ones that were intended to be achieved by the drying process. The...
Resource Type:: Dissertation
Full Text:: behavior was investigated for western hemlock (Tsuga heterophylla) lumber. Board weights were

Early genetic selection for wood stiffness in juvenile Douglas-fir and western hemlock

Creator:: Urhan, Oguz S.
Abstract:: Wood modulus of elasticity (MOE), also known as wood stiffness, is one of the most important wood properties. Wood stiffness is a measure of the resistance to deflection, and is important because some products such as laminated veneer lumber, plywood, and dimension lumber require stiff and strong wood. Incorporating wood...
Resource Type:: Masters Thesis
Full Text:: Douglas fir and Western Hemlock. AN ABSTRACT OF THE THESIS OF Oguz S. Urhan for the degree of

Effects of release from suppression on hydraulic architecture, photosynthetic capacity and functional wood characteristics in Douglas-fir and western hemlock

Creator:: Renninger, Heidi
Abstract:: Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), a shade intolerant species, and western hemlock (Tsuga heterophylla (Raf.) Sarg.), a shade tolerant species, were compared to learn more about the temporal pattern of release from suppression in both species, whether hydraulic architecture or photosynthetic capacity constrain release and how wood functional properties change...
Resource Type:: Masters Thesis
Full Text:: equivalent minimum water potential, stomatal conductance of western hemlock was found to be more sensitive

An investigation into the staining problem in Western Hemlock : a test case

Creator:: Millar, Sita, Western Dry Kiln Association, and Western Dry Kiln Association. Meeting (53rd : 2002 : Reno, Nev.)
Resource Type:: Conference Proceeding
Full Text:: AN INVESTIGATION INTO THE STAINING PROBLEM IN WESTERN HEMLOCK (A

Equalization of Western Hemlock to Japanese equilibrium moisture content

Creator:: Wallace, John, Western Dry Kiln Association, and Western Dry Kiln Association. Meeting (53rd : 2002 : Reno, Nev.)
Resource Type:: Conference Proceeding
Full Text:: EQUALIZATION OF WESTERN HEMLOCK TO JAPANESE EQUILIBRIUM MOISTURE

Predators associated with hemlock woolly adelgid (Hemiptera: Adelgidae) infested western hemlock in the Pacific Northwest.

Creator:: Kohler, Glenn R.
Abstract:: The hemlock woolly adelgid, Adelges tsugae, is causing widespread mortality of eastern hemlock, Tsuga canadensis, in the eastern United States. In the West, A. tsugae causes negligible damage to western hemlock, Tsuga heterophylla. Host tolerance traits and presence of endemic predators may be contributing to the relative tolerance of western...
Resource Type:: Masters Thesis
Full Text:: Hemlock Woolly Adelgid (Hemiptera: Adelgidae) Infested Western Hemlock in the Pacific Northwest

Modeling the fixed bed drying characteristics of biomass particles

Creator:: Yang, Hai
Abstract:: The fixed bed drying of western hemlock and Douglas-fir biomass particles at temperatures ranging from 50°C to 200°C and air velocities from 0.3 to 0.9 m/s was investigated. The objectives were to describe the drying characteristics of the particles, fit a model for thin-layer drying, and develop and test a...
Resource Type:: Masters Thesis
Full Text:: fixed bed drying of western hemlock and Douglas-fir biomass particles at temperatures ranging from 50

Numerical simulation of wood drying

Creator:: Berberovic, Adin
Abstract:: A mathematical and then a numerical model were developed for simulating a convective batch lumber drying process. The model incorporates mass and heat transfer relationships within the lumber stack, as well as thermodynamic properties of the wood and drying air. It takes into account a change of air properties along...
Resource Type:: Masters Thesis
Full Text:: can be applied to western hemlock lumber. Based on the steps necessary to create and validate the

ScholarsArchive@OSU

Transformation of Western Hemlock Tree Crowns by Dwarf Mistletoe

Effect of high temperature drying on bending and shear strengths of western hemlock

The impact of wood variability on the drying rate at different moisture content levels

Early genetic selection for wood stiffness in juvenile Douglas-fir and western hemlock

Effects of release from suppression on hydraulic architecture, photosynthetic capacity and functional wood characteristics in Douglas-fir and western hemlock

An investigation into the staining problem in Western Hemlock : a test case

Equalization of Western Hemlock to Japanese equilibrium moisture content

Predators associated with hemlock woolly adelgid (Hemiptera: Adelgidae) infested western hemlock in the Pacific Northwest.

Modeling the fixed bed drying characteristics of biomass particles

Numerical simulation of wood drying

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