Index Catalog // ScholarsArchive@OSU

Modelling root reinforcement in shallow forest soils

Creator:: Skaugset, Arne E.
Abstract:: 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 soil strength and increases the risk of management -induced landslides. The technical literature does not adequately support...
Resource Type:: Dissertation

Geohydrologic conditions on a steep forested slope : modeling transient piezometric response to precipitation

Creator:: Bransom, Mark
Abstract:: 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 known as headwalls. Based on results of the monitoring, two existing mathematical models were adapted to predict piezometric levels in headwalls...
Resource Type:: Dissertation

The application of centrifugal modeling to determine ice forces on isolated circular structures

Creator:: Clough, Herbert F.
Abstract:: A test system was developed and used to investigate ice/structure interaction with centrifugal modeling. The test system was designed to perform two main functions: (1) create a uniform ice sheet, and (2) drive a model structure through the ice sheet at a constant speed. Both of these functions were required...
Resource Type:: Masters Thesis
Full Text:: accurately model soil response, whether it be the 6 seabed foundation or the structure itself (e.g., a

Modeling shallow-water hydrodynamics : rotations, rips, and rivers

Creator:: Long, Joseph W.
Abstract:: Hydrodynamic models are used as a diagnostic tool to understand the temporal variability of shallow-water processes that are difficult to completely resolve with traditional field measurements. For all simulations, modeled quantities are qualitatively or quantitatively compared with available measurements to gain confidence in conclusions derived from the modeled results. In...
Resource Type:: Dissertation
Full Text:: . The model and data are in good agreement for all wave conditions during the month and estimated model

Parameters affecting mechanical collisions

Creator:: Aum, Ho Sung
Abstract:: Even though the elastic deformations that occur during the impact of colliding bodies may be small in comparison to their actual dimensions, they play an important role in mechanical collisions. During the time the bodies are in contact, elastic, friction, and inertia properties combine to produce a complex variation of...
Resource Type:: Dissertation
Full Text:: impulse and velocity changes that occur during contact. However, a considerably-simplified model captures

Development of a posture prediction model

Creator:: Dendamrongvit, Thidarat
Abstract:: Biomechanical models have been used in designing human work environments to evaluate potential risks to workers before a work environment is constructed. In order for work environments to be modeled correctly, most biomechanical models require as input, an accurate body posture of the worker. This information can be obtained by,...
Resource Type:: Masters Thesis
Full Text:: biomechanical model to predict maximum static hand force exertion capability. This mathematical biomechanical

A mathematical model simulating mass transport of chemicals in saturated porous media

Creator:: Lindstrom, Fredrick Thomas
Abstract:: A mathematical model simulating mass transport of chemicals in saturated porous medium is given in four parts. Included in the development is the physical phenomenon of adsorption of molecules of chemicals on the surrounding walls of the porous medium. The four main areas of study are: (1) Simple one dimensional...
Resource Type:: Dissertation

An economic model of soil compaction in forestry

Creator:: Stewart, Rodney Aloysius
Abstract:: A model is presented which predicts the net present value of a stand level multi-entry harvest plan. The model accounts for potential volume losses due to harvest-related soil compaction. The goal of this project was to answer five economic questions about the issue of soil compaction in forestry. The five...
Resource Type:: Capstone Project

Critical buckling strength of stiffened flat plywood plates in compression and shear-closely spaced stiffeners

Creator:: Forest Products Laboratory (U.S.), Norris, Charles, B. (Charles Brazer), 1894-, Kommers, William J., and McKinnon, P. F.
Abstract:: This report is one of a series issued in cooperation with the Army-Navy-Civil Committee on Aircraft Design Criteria under the supervision of the Aeronautical Board. Information reviewed and reaffirmed March 1956. Original report issued February 1948.
Resource Type:: Technical Report

Effects of shear deformation in the core of a flat rectangular sandwich panel : compressive buckling of sandwich panels having dissimilar facings of unequal thickness

Creator:: Forest Products Laboratory (U.S.), Ericksen, Wilhelm S., and March, H. W.
Abstract:: Revised November 1958. Information reviewed and reaffirmed 1965.
Resource Type:: Technical Report
Full Text:: approximate expression chosen for its mathematical simplicity. Such an approximation will always yield a

ScholarsArchive@OSU

Modelling root reinforcement in shallow forest soils

Geohydrologic conditions on a steep forested slope : modeling transient piezometric response to precipitation

The application of centrifugal modeling to determine ice forces on isolated circular structures

Modeling shallow-water hydrodynamics : rotations, rips, and rivers

Parameters affecting mechanical collisions

Development of a posture prediction model

A mathematical model simulating mass transport of chemicals in saturated porous media

An economic model of soil compaction in forestry

Critical buckling strength of stiffened flat plywood plates in compression and shear-closely spaced stiffeners

Effects of shear deformation in the core of a flat rectangular sandwich panel : compressive buckling of sandwich panels having dissimilar facings of unequal thickness

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