Index Catalog // ScholarsArchive@OSU

In-forest log segregation based on acoustic measurement of wood stiffness

Creator:: Amishev, Dzhamal Y.
Abstract:: To remain competitive, the forest products industry needs to look for new and innovative processes and technologies to not only reduce costs but also to recover more value through the entire seedling-to-customer forest products supply chain. It is well recognized that measuring wood properties of logs in real time during...
Resource Type:: Dissertation
Full Text:: presented on June 2, 2008. Title: In-Forest Log Segregation Based on Acoustic Measurement of Wood

Environmental effects on heartwood extractive content and their consequences for natural durability in Douglas-fir and western redcedar

Creator:: Taylor, Adam McVaugh, 1969-
Abstract:: Heartwood can have properties that are distinct from sapwood, including resistance to insect and microbial attack. Despite the practical importance of heartwood formation in trees, a review of the literature revealed that little was known about the effects of environmental factors on heartwood quality or how variations in heartwood properties...
Resource Type:: Dissertation
Full Text:: managers grow trees that will meet society's needs for high-quality wood products. This objective of this

Dielectric properties of defects on wood surfaces

Creator:: Forrer, Johannes B.
Abstract:: Raw material costs and limited material availability and quality have created significant interest in and opportunities for the application of nondestructive evaluation techniques to improve wood processing technologies. The incentives come from the desire to 1) manufacture the highest valued product, 2) conserve the amount of raw material used, 3)...
Resource Type:: Dissertation
Full Text:: DOUBLE RESONANT TECHNIQUE FOR THE MEASUREMENT OF DIELECTRIC PROPERTIES OF WOOD 127 Appendix 2 DIELECTRIC

A model for simulation of subsurface transport of highway-related water quality constituents

Creator:: Hesse, Edwin Todd
Abstract:: A spreadsheet-based transport model was developed in Microsoft Excel™ as part of a six-year National Cooperative Highway Research Program project conducted at Oregon State University. The model simulated the leaching, transport, removal, and retardation processes that occur in the surface and subsurface pathways of the near highway environment. For all...
Resource Type:: Masters Thesis
Full Text:: -related water quality constituents AN ABSTRACT OF THE THESIS OF Edwin Todd Hesse for the degree of

Wood quality and strength relationships in Douglas-fir (Pseudotsuga mezieseii (Mirb.) Franco) wood of different maturity

Creator:: Carter, Keoki Apokolani
Abstract:: The objectives of this study were to determine: 1) differences in average wood quality and strength properties of clear-wood specimens sampled from juvenile, transition, and mature wood zones in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) trees from known forest sites; 2) relationships among wood quality properties [specific gravity (SG), rings per...
Resource Type:: Masters Thesis

Performance analysis of the hardware and software components of an optical scanning system for monitoring lumber sizes

Creator:: Leavengood, Scott A.
Abstract:: In recent years, the forest products industry has been forced to cope with a supply of raw material that is declining in both quality and quantity. In addition, log prices are escalating rapidly. Because log costs may represent as much as 90 percent of the overall production costs of lumber...
Resource Type:: Masters Thesis

Assessment of ground water recharge and quality under agricultural production in Lane County, Oregon

Creator:: Shelby, Patrick M.
Abstract:: Assessment of the environmental impacts of an agricultural production system requires information on both soil water quality and solute flux. Passive Capillary Samplers (PCAPS), which sample water from the vadose zone using fiber glass wicks, have shown potential to provide both flux and solute concentration in unsaturated zone sampling but...
Resource Type:: Masters Thesis
Full Text:: Assessment of ground water recharge and quality under

Analysis of streamflow variability in Oregon for regional water quality monitoring programs

Creator:: Saligoe-Simmel, Julia L.
Abstract:: Streamflow variability can provide valuable information for nonpoint source pollution monitoring program planning. The research papers presented in this thesis examine selected properties of streamflow variability in Oregon to advance its application in regional planning of water quality monitoring programs. The products of this research depict Oregon streams by their...
Resource Type:: Dissertation
Full Text:: water quality monitoring programs AN ABSTRACT OF THE DISSERTATION OF Julia L. Saligoe-Simmel for the

Fecal coliform bacteria in stream sediments : sampling methodology, measurement and modeling the impact on stream water quality

Creator:: Church, Wendy S.
Abstract:: Three studies were conducted related to the measurement and impact of stream sediment fecal coliform (FC) bacteria on stream water quality. In part one an enumeration technique for sediment FC was defined and statistically characterized. This characterization necessitated the development of a sample splitting mechanism, which was found to split...
Resource Type:: Dissertation
Full Text:: : Sampling Methodology, Measurement and Modeling the Impact on Stream Water Quality by Wendy S. Church A

Pressure measurement in wood as a method to understand impregnation processes : conventional and supercritical carbon dioxide

Creator:: Schneider, Philip F.
Abstract:: Two approaches to improving wood treatability include the modification of pressure schedules during conventional liquid treatments and the use of supercritical fluids (SCFs). In both of these techniques, pressure differences are important for transporting materials into wood. The level of pressure and its change during SCF treatments are also important...
Resource Type:: Dissertation

ScholarsArchive@OSU

In-forest log segregation based on acoustic measurement of wood stiffness

Environmental effects on heartwood extractive content and their consequences for natural durability in Douglas-fir and western redcedar

Dielectric properties of defects on wood surfaces

A model for simulation of subsurface transport of highway-related water quality constituents

Wood quality and strength relationships in Douglas-fir (Pseudotsuga mezieseii (Mirb.) Franco) wood of different maturity

Performance analysis of the hardware and software components of an optical scanning system for monitoring lumber sizes

Assessment of ground water recharge and quality under agricultural production in Lane County, Oregon

Analysis of streamflow variability in Oregon for regional water quality monitoring programs

Fecal coliform bacteria in stream sediments : sampling methodology, measurement and modeling the impact on stream water quality

Pressure measurement in wood as a method to understand impregnation processes : conventional and supercritical carbon dioxide

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