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Browsing by Author "Pyles, Marvin R."
Now showing items 1-20 of 23
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Charland, James W. (1997-04-21)The forest products industry often uses intermediate-support cable logging systems to transport logs from the harvest site to a staging area. A method is presented to assist in the analysis and design of these cable sys ...
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Reba, Michele L. (2001-12-04)Three culverts, judged to be fish barriers, were replaced with "stream simulation" culverts on the Fremont National Forest of south central Oregon. The culvert sites are located in the Fort Rock Basin in streams that a ...
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Development and evaluation of oriented strandboard bonded with soy-based formaldehyde-free adhesives Schwarzkopf, Matthew John (2009-04-16)Synthetic adhesives like phenol formaldehyde (PF) and isocyanates dominate the wood based structural panel market. The raw materials that makeup these adhesives are based on petroleum and natural gas. The sustainabilit ...
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Bord, Andrea J. (2006-08-28)A one-mile section of a newly constructed forest road in Northwest Oregon was analyzed for various aspects of subgrade and surface strength and their association with the formation of ruts during the first hauling season ...
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Bransom, Mark (1996-12-06)Two hilislope sites in the central Oregon Coast Range were instrumented and monitored for winter precipitation and saturated and unsaturated subsurface conditions. The study sites were near-ridge depressions typically kn ...
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Bultena, Sarah M. (2006-06-26)Heavy timber framing relies primarily on bracing to withstand lateral loads due to earthquakes and wind events. Bracing configurations in heavy timber framed buildings vary widely and include cross bracing, knee bracing, ...
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Zeng, Yimin (1995-08-17)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-dimensiona ...
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Smith, Russell S. (2001-11-12)A study was conducted to investigate the influence of root reinforcements on soil strength and the initiation of static liquefaction in forest soils. The design and operation was developed of an apparatus capable of mo ...
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Saunders, George P. (1987-06-23)Oregon's forestry industry has and will continue to be a vital component of Oregon's economy, with twenty-two percent of Oregon's 1986 gross state product and thirty-nine percent of Oregon's 1986 gross manufacturing prod ...
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Pugh, Edwin V. (1985-05-06)This paper presents an evaluation of the cable loading support capacity of red alder, Alnus rubra Bong., Sitka spruce, Picea sitchensis (Bong.) Carr, and western hemlock, Tsuga heterophylla (Raf.) Sarg., tail trees. C ...
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Lyons, Charles Kevin (2001-09-06)Consider the bole of a tree to consist of a linear elastic material that is orthotropic with respect to the cylindrical coordinates. When the bole of a tree is subjected to resultant loads in the directions of the Cart ...
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Mills, Keith A. (1983-12-01)The Lookout Creek Earthflow is located in the Cascade Mountain Range in western Oregon. The Cascade Mountains are mainly volcanic in origin, and deposits in and around the slide have a complex geomorphic history,, aff ...
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Skaugset, Arne E. (1997-01-24)A hypothesis used to explain the relationship between timber harvesting and landslides is that tree roots add mechanical support to soil, thus increasing soil strength. Upon harvest, the tree roots decay which reduces ...
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Chen, Huaisheng (1996-12-10)Object Watershed Link Simulation (OWLS) is a physically based watershed model. In the OWLS model, a watershed is defined as a three-dimensional object with linkages between cells and their attributes (e.g., area, slope ...
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Kirkham, Tracie (2002-04-23)Peakflow frequency analysis is used in forest hydrology for designing stream crossing structures such as culverts and bridges. The traditional approach to frequency analysis is based on the assumption that the observed ...
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Beary, Gregory L. (1983-11-17)The purpose of this paper is to determine the dynamic tensions that occur in the guyl ines and pendulum lines of a tethered logging bal loon. A scale model was used to represent the tethered logging balloon. During t ...
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Schauwecker, Christoph F. (2007-01-08)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 Polynes ...
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Otis, Timothy Leonard (2007-11-27)This research investigates the direct and downstream impacts of clearcut harvest units on stream temperature as a part of the Hinkle Creek Paired Watershed Study. The Hinkle Creek watershed is located in the foothills ...
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Royer, Timothy Adam (2006-03-20)The impact of forest roads on the hydrology of forested watersheds has long been studied. While forest roads have been reported to alter storm runoff at the road segment scale, the potential for changes to be detectable ...
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Commandeur, P. R. (1987-09-22)Mass wasting events are a principal form of erosion that occurs on steep forest land throughout the Pacific Northwest. Numerous studies have reported that tree roots help stabilize steep forest land. A complete understa ...
Now showing items 1-20 of 23
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