Index Catalog // ScholarsArchive@OSU

Wood properties and use of sensor technology to improve optimal bucking and value recovery of Douglas-fir

Creator:: Acuna, Mauricio A.
Abstract:: There are a number of wood properties which affect the quality of forest products such as lumber and pulp. Of these, wood density is considered by some to be the single most important physical characteristic because it is an excellent predictor of strength, stiffness, hardness, and paper-making capacities. Accurately assessing...
Resource Type:: Dissertation
Full Text:: Optimal Bucking and Value Recovery of Douglas-fir. Abstract approved: Glen E. Murphy

Estimating volume and value on standing timber in hybrid poplar plantations using terrestrial laser scanning : a case study

Creator:: Barnett, Jennifer S.
Abstract:: Terrestrial laser scanning (TLS) may provide a way to increase timber value recovery by replacing manual timber cruising with a simple-to-use, cost-effective alternative. TLS has been studied in several trials worldwide. Past studies have not compared TLS based estimates with mill estimates of stem value and volume. Three differently stocked...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________________________ Glen E. Murphy Terrestrial laser scanning (TLS) may provide a way to increase timber value

Optimal harvesting of continuous age structured populations

Creator:: Smith, Steven J.
Abstract:: We investigate the optimal harvesting strategies for McKendrick type population models. Models of this type endow the population with a continuous age structure. They consist of a partial differential equation with a boundary condition which involves an integral of the solution. We study two problems, the first concerns the yield...
Resource Type:: Dissertation
Full Text:: Age Structured Populations Abstract approved: Lea F. Murphy We investigate the optimal harvesting

Managing woody biomass transportation for improved biomass economics

Creator:: Han, Sang-Kyun
Abstract:: With rising fuel costs and enhanced environmental concerns, the use of renewable energy has been steadily considered and widely expounded as a solution to the challenges of global energy security and climate change. The use of woody biomass, in particular, has received considerable attention for energy production due to the...
Resource Type:: Dissertation
Full Text:: , Murphy (2003) developed a 0/1 integer linear programming truck route scheduling model and tested it in

Forest ant composition, relative abundances, and foraging following aerial spraying of carbaryl to suppress Western Spruce budworm

Creator:: Murphy, Christopher F.
Abstract:: An outbreak of western spruce budworm Choristoneura occidentalis in the Blue Mountains of eastern Oregon in 1983 was treated with helicopter applied carbaryl. Effects of the spraying on forest ants were determined from pre- and postspray samples taken from two carbaryl sprayed and two unsprayed plots. In each 0.75-ha plot,...
Resource Type:: Masters Thesis
Full Text:: of Carbaryl to Suppress Western Spruce Budworm by Christopher F. Murphy A THESIS submitted to

Forest biomass estimation with hemispherical photography for multiple forest types and various atmospheric conditions

Creator:: Clark, Joshua Andrew
Abstract:: The importance of accurately identifying inventories of domestic energy, including forest biomass, has increasingly become a priority of the US government and its citizens as the cost of fossil fuels has risen. It is useful to identify which of these resources can be processed and transported at the lowest cost...
Resource Type:: Dissertation
Full Text:: . First, I would like to thank Dr. Glen Murphy for his guidance and support as I took on a topic quite

Evaluation of a probabilistic quantitative precipitation forecasting experiment

Creator:: Hsu, Wu-ron
Abstract:: Forecasts of the likelihood of occurrence of various amounts of precipitation are very important, since excessive precipitation amounts over relatively short time periods can have adverse effects on public safety and economic efficiency, As a result, forecasters at the National Weather Service Forecast Office in San Antonio, Texas were asked...
Resource Type:: Masters Thesis
Full Text:: of Science in Atmosoheric. Sciences presented on Jne 4, 12 Title: Evaluation of a Probabilistic

Specification of local surface weather elements from large-scale general circulation model information, with application to agricultural impact assessment

Creator:: Wilks, Daniel S.
Abstract:: A procedure for model-assisted climate impact assessment is developed. The approach combines data from observations and atmospheric general circulation models (GCNs), and provides the basis for a potentially valuable means of using information derived from GCMs for climate impact assessments on local scales. The first component of this procedure is...
Resource Type:: Dissertation
Full Text:: Application to Agricultural Impact Assessment Abstract Approved: A procedure for model-assisted climate

Estimating spatial changes in acoustic velocity in felled Douglas-fir stems

Creator:: Dowding, Bodie
Abstract:: To compete with other building materials, the wood products industry must find a way to increase value and lower costs. Wood stiffness is important for most wood uses. Value can be increased and costs can be lowered by sorting logs for stiffness in the woods using acoustic devices mounted on...
Resource Type:: Masters Thesis
Full Text:: making (Marshall and Murphy, 2004). A forecasting system that more accurately forecasts both stem form

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:: : ___________________________________________________________________ Glen E. Murphy To remain competitive, the forest products industry needs to look for new

ScholarsArchive@OSU

Wood properties and use of sensor technology to improve optimal bucking and value recovery of Douglas-fir

Estimating volume and value on standing timber in hybrid poplar plantations using terrestrial laser scanning : a case study

Optimal harvesting of continuous age structured populations

Managing woody biomass transportation for improved biomass economics

Forest ant composition, relative abundances, and foraging following aerial spraying of carbaryl to suppress Western Spruce budworm

Forest biomass estimation with hemispherical photography for multiple forest types and various atmospheric conditions

Evaluation of a probabilistic quantitative precipitation forecasting experiment

Specification of local surface weather elements from large-scale general circulation model information, with application to agricultural impact assessment

Estimating spatial changes in acoustic velocity in felled Douglas-fir stems

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

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