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

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 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

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

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

An investigation of factors affecting the optimal output log distribution from mechanical harvesting and processing systems

Creator:: Marshall, Hamish Douglas
Abstract:: Globally the forest harvesting industry is becoming increasingly mechanized. Driving this trend is the desire to increase productivity and reduce cost, as well as to improve labor-related issues. With mechanization comes an in-forest platform for the introduction of state-of-the-art communication and measurement technologies, and powerful on-board computers. These systems have...
Resource Type:: Dissertation
Full Text:: . - Example of movement of processor head for a FULL scan and PARTIAL scan (Murphy 2003b

Ecological Effects of Reservoir Water Level Management and Implications for Juvenile Chinook Salmon

Creator:: Murphy, Christina A.
Abstract:: Large dams and their respective reservoirs can provide renewable energy and water security, but also profoundly alter riverine ecosystems. In the Pacific Northwest, dams and reservoirs cause discontinuities in river networks that have been particularly problematic for anadromous fishes. As barriers to the upstream and downstream migration of anadromous fishes,...
Resource Type:: Dissertation

A yoga intervention for counselors with compassion fatigue : a literature review and qualitative case study

Creator:: Murphy, Janys M.
Abstract:: The purpose of this manuscript style dissertation was to increase understanding of the experiences of counselor's with compassion fatigue as they participated in a yoga intervention. Compassion fatigue is a condition that creates both physical and psychological impairment as a result of working in the helping role. Yoga is an...
Resource Type:: Dissertation
Full Text:: Case Study. by Janys M. Murphy A DISSERTATION submitted to Oregon State

Magnetotelluric Constraints on Lithospheric Properties in the Southeastern United States

Creator:: Murphy, Benjamin S.
Abstract:: By inverting EarthScope long-period magnetotelluric (MT) data from the southeastern United States (SEUS), we obtain electrical conductivity images that provides key insights into the geodynamics of this region. Significantly, we resolve a highly electrically resistive block that extends to mantle depths beneath the modern Piedmont and Coastal Plain physiographic provinces....
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Benjamin S. Murphy

ScholarsArchive@OSU

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

Optimal harvesting of continuous age structured populations

Managing woody biomass transportation for improved biomass economics

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

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

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

An investigation of factors affecting the optimal output log distribution from mechanical harvesting and processing systems

Ecological Effects of Reservoir Water Level Management and Implications for Juvenile Chinook Salmon

A yoga intervention for counselors with compassion fatigue : a literature review and qualitative case study

Magnetotelluric Constraints on Lithospheric Properties in the Southeastern United States

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