Index Catalog // ScholarsArchive@OSU

A mobility model for tracked vehicles

Creator:: Gleason, Karl H.
Abstract:: A semi-empirical mobility model is presented which predicts tracked vehicle performance in timber harvesting applications. The interactions between the log load and the terrain, the log load and the vehicle, and the vehicle and the terrain cause resistances for the vehicle. The mobility model calculates these resistances, comparing them to...
Resource Type:: Capstone Project

Role of a grass riparian zone in controlling the fate of nitrogen in a poorly drained agricultural landscape

Creator:: Davis, Jennifer H.
Abstract:: Riparian ecosystems, through their unique positions in the agricultural landscape, have the potential to mitigate nutrient loading to streams. This study was conducted to gain a better understanding of N cycling in a poorly drained Grass Riparian Zone (GRZ) and adjacent Perennial Ryegrass seed Field (PRF) in the Willamette Valley,...
Resource Type:: Dissertation
Full Text:: program and for his ability to share his knowledge in a meaningful way. I would like to thank Marvin

Juvenile coho salmon movement and migration through tide gates

Creator:: Bass, Arthur
Abstract:: Tidal marshlands in the upper estuary ecotone provide essential habitat for juvenile salmonids. In this environment, salmonids grow rapidly and acclimate to saltwater. Worldwide, tidal marshes have been diked and drained to provide agricultural and residential land. Tide gates are one-way doors integrated into dike systems that prevent saltwater flooding...
Resource Type:: Masters Thesis

Precipitation characteristics for landslide hazard assessment for the central Oregon Coast Range

Creator:: Surfleet, Christopher G.
Abstract:: Precipitation data from 1988-1995 for 13 rain gauges of the Department of Forest Engineering rain gauge network, and a longer precipitation record, 1976-1995, at Mapleton were analyzed. The objectives were to assess the spatial and temporal distribution of precipitation intensity and antecedent precipitation, and understand the role of these characteristics...
Resource Type:: Masters Thesis

Development of a cable logging system analysis package for micro-computers

Creator:: Chung, Joosang
Abstract:: A computer program package to estimate cable yarding payload capability was made. The package was intended to expand applicability of existing packages and to be user friendly. It has six system options: live skyline, standing skyline, running skyline, slackline, multispan and highlead. In the standing skyline and multispan analyses, load...
Resource Type:: Capstone Project

Educational needs assessment of designers in west coast states : architects and engineers on the topic of wood products

Creator:: Roth, Travis J.
Abstract:: Architects and engineers are two key types of design professionals who influence the use of wood products in construction. Eighty to ninety percent by volume of all residential structures in the U.S. are wood (Gupta, 2005). In 2010, the non-residential market was made up by 10% wood, 60% steel and...
Resource Type:: Masters Thesis

Context matters : A multi-scale assessment of riparian tree response to upslope density reduction

Creator:: Ruzicka, Kenneth J., 1982-
Abstract:: Forest management is rapidly undergoing a transformation from a discipline based on efficient commodity production to one for multiple uses, especially on federally managed land in the United States. This new management paradigm has challenged silviculturists to develop and adapt forest management techniques that can deal with increased demands. Using...
Resource Type:: Dissertation

Integration of an expert system and dynamic programming approach to optimize log breakdown using 3-dimensional log and internal defect shape information

Creator:: Zeng, Yimin
Abstract:: A computer program, SAW3DG, was developed to optimize log breakdown using 3-dimensional log and internal defect shapes. The program was based on SAW3D, a log breakdown optimization program considering only 3-dimensional log shape. SAW3D was modified to include internal log defects in 3-dimensional representation and integrated with SLGRADER, an expert...
Resource Type:: Dissertation

The phytosanitation of solid wood packaging materials using wood preservatives

Creator:: Schauwecker, Christoph F.
Abstract:: New species introductions have been associated with the movement of people for thousands of years. For instance, horses were introduced into North America by Spanish explorers, while pigs were introduced by the Polynesians into many Pacific islands long before the establishment of permanent European settlements. Both of these species introductions...
Resource Type:: Masters Thesis

Dynamic behavior of silty soils

Creator:: Sunitsakul, Jutha
Abstract:: The cyclic resistance of predominantly fine-grained soils has received considerable attention following ground and foundation failures at sites underlain by silt-rich soils during recent earthquakes. In several cases substantial ground deformation and reduced bearing capacity of silt soils has been attributed to excess pore pressure generation during cyclic loading. These...
Resource Type:: Dissertation
Full Text:: Vinson, Marvin Pyles, Jonathan Istok, and Kenneth Krane. Several former graduate students contributed

ScholarsArchive@OSU

A mobility model for tracked vehicles

Role of a grass riparian zone in controlling the fate of nitrogen in a poorly drained agricultural landscape

Juvenile coho salmon movement and migration through tide gates

Precipitation characteristics for landslide hazard assessment for the central Oregon Coast Range

Development of a cable logging system analysis package for micro-computers

Educational needs assessment of designers in west coast states : architects and engineers on the topic of wood products

Context matters : A multi-scale assessment of riparian tree response to upslope density reduction

Integration of an expert system and dynamic programming approach to optimize log breakdown using 3-dimensional log and internal defect shape information

The phytosanitation of solid wood packaging materials using wood preservatives

Dynamic behavior of silty soils

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