Index Catalog // ScholarsArchive@OSU

Gluability of platen-dried Douglas-fir veneer

Creator:: Sandoe, Michael Dean
Abstract:: This study was undertaken to determine whether Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) veneer could be platen-dried and then sucessfully glued into two-ply parallel-laminated panels. A range of veneer thicknesses, platen temperatures and final dry moisture contents were examined. Thicknesses included were nominal 0.1, 0.2, 0.3 and 0.4 inches; platen temperatures...
Resource Type:: Masters Thesis

Effect of solvent extraction and planing of veneers from Southeast Asian species upon glueline characteristics and bond durability

Creator:: Dougal, Edward Francis
Abstract:: Using Southeast Asian hardwood veneers for exterior plywood siding has caused problems because some species produced quality plywood while other species produced plywood which delaminated soon after being put in service in exterior exposure. This study attempted to improve the durability of glue bonds of some Southeast Asian hardwood veneers...
Resource Type:: Masters Thesis
Full Text:: veneer surfaces and plywood gluelines of treated and untreated veneer. Stereo light microscopy, incident

Investigation of a new resin as an exterior adhesive to bond high moisture content veneers

Creator:: Clark, Randy Jon
Abstract:: A new carbohydrate-phenol based resorcinol resin (CPR resin) was synthesized by end capping a known carbohydrate-phenol based resole with resorcinol under basic reaction conditions. Synthetic parameters, such as duration of cook, pH, and the amount of resorcinol and formaldehyde were varied to produce resins with molecular weights (Mw) ranging from...
Resource Type:: Masters Thesis

Properties of veneer sliced from serpentine-end-matched flitches

Creator:: Liu, Yuqing
Abstract:: Eighteen Ponderosa Pine (Pinus ponderosa Dougl.ex.laws) veneer flitches were randomly selected and crosscut into paired flitches. Serpentine-end-matched (SEM) joints were machined in the flitches, joint amplitude equal to the width in one half of the paired flitch and joint amplitude equal to 2/3 width in the other half of the...
Resource Type:: Masters Thesis

Image pre-processing algorithms for isolation of defects in Douglas-fir veneer

Creator:: Forrer, Johannes Barry
Abstract:: The goal of this research is to develop automatic techniques for identifying defects in Douglas-fir veneer. To achieve this goal, computer vision techniques, in particular image-processing, will be applied. Several pre-processing steps may be required to enhance images in making further analysis easier, faster, and more reliable. Pre-processing is often...
Resource Type:: Masters Thesis

Simulation analysis of green veneer recovery as influenced by different clipping strategies

Creator:: Babb, Michael G.
Resource Type:: Masters Thesis

Wetting as a predictor of surface inactivation for platen dried Douglas-fir veneer

Creator:: Kadlec, Kim Michael
Resource Type:: Masters Thesis

The economic feasibility of preheating Douglas-fir blocks prior to peeling

Creator:: Baskin, Richard
Abstract:: Past research and industrial sources have implied that preheating Douglas-fir Pseudotsuga menziesii (Mirb.) Franco prior to peeling veneer was economically feasible. To test this, the effect of treatment temperature on veneer yield and thickness variation for three diameter classes of low grade Douglas-fir logs was studied and related to the...
Resource Type:: Masters Thesis
Full Text:: yield, grade yield, or veneer sheet width yield of 12, 18, and 24 inch diameter blocks. Block diameter

Emission, energy, and production efficiency of a radio-frequency assisted gas-fired veneer dryer

Creator:: Zenke, Randall C.
Abstract:: The drying of wood is required in most forest products manufacturing operations. Depending on the wood species, dimensions, drying temperatures, and drying duration, the amount of emissions and energy consumption can greatly affect the operating cost, environment, and quality of wood dried. As such, the forest products industry continues to...
Resource Type:: Masters Thesis

Image segmentation for defect detection on veneer surfaces

Creator:: Zhong, Yuan, 1956-
Abstract:: Machine vision is widely used in scientific areas and non-wood using industries, but the extreme variability of wood has limited its adoption by forest products industries. However, it is now becoming a key factor in further automation of the forest products industry. As a very important part of machine vision,...
Resource Type:: Dissertation
Full Text:: Segmentation for Defect Detection on Veneer Surfaces. Machine vision is widely used in scientific areas and

ScholarsArchive@OSU

Gluability of platen-dried Douglas-fir veneer

Effect of solvent extraction and planing of veneers from Southeast Asian species upon glueline characteristics and bond durability

Investigation of a new resin as an exterior adhesive to bond high moisture content veneers

Properties of veneer sliced from serpentine-end-matched flitches

Image pre-processing algorithms for isolation of defects in Douglas-fir veneer

Simulation analysis of green veneer recovery as influenced by different clipping strategies

Wetting as a predictor of surface inactivation for platen dried Douglas-fir veneer

The economic feasibility of preheating Douglas-fir blocks prior to peeling

Emission, energy, and production efficiency of a radio-frequency assisted gas-fired veneer dryer

Image segmentation for defect detection on veneer surfaces

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