Index Catalog // ScholarsArchive@OSU

Thermodynamics of non-dilute saline solutions in variably saturated porous media

Creator:: Burns, Erick R.
Abstract:: Non-dilute salt strength solutions occur in many near surface geologic environments. In order to better understand the occurrence and movement of the water and salt, mathematical models for this non-ideal fluid need to be developed. Initial boundary value problems may then be solved to predict behavior for comparison with observations....
Resource Type:: Dissertation
Full Text:: be very proud. Maria, Ron, and I started working on research topics over four years ago, and with

Determining contact angle of solutions with varying surface tension on dry and pre-wetted silica sands

Creator:: McGinnis, Thomas L.
Abstract:: Infiltration of highly concentrated solutions into unsaturated sand is suspected to be affected by the liquid-gas interfacial tension between the resident water and that of the infiltrating solution. The wetting of non-porous solid surfaces by liquids is commonly quantified by contact angle measurements. However, it is well known that wettability...
Resource Type:: Masters Thesis
Full Text:: appreciated. I want to thank Maria Dragila and Jack Higginbotham for serving on my committee. Maria provided

Predictive mapping of landtype association maps in three Oregon national forests

Creator:: Peterman, Wendy L.
Abstract:: This study explores the use of predictive mapping techniques in developing Landtype Association (LTA) maps for use in natural resource management. These maps are produced for the USDA Forest Service on a regional basis at a 1:100,000 scale. The goal of this study is to develop and test a method...
Resource Type:: Masters Thesis
Full Text:: ______________________________________________________________________ Dean of the Graduate School I understand that my thesis will become part of the permanent

Exploring Colloid Transport in Unsaturated Porous Media Using X-Ray Microtomography

Creator:: Brueck, Chris L.
Abstract:: Understanding the mechanisms controlling colloid transport and deposition in the vadose zone is an important step in protecting our water resources. Colloid transport in unsaturated porous media was studied using X-Ray Microtomography (XMT), which is a non-destructive imaging technique that provides three-dimensional images at a resolution on the order of...
Resource Type:: Masters Thesis
Full Text:: experienced advisor to guide me through this process. I thank my committee member, Maria Dragila, for

Flow processes in the dry regime : the effect on capillary barrier performance

Creator:: Jansik, Danielle P.
Abstract:: Engineered capillary barriers typically consist of two layers of granular materials designed so that the contrast in sediment hydrologic properties and sloping interface retains infiltrating water in the upper layer. We report here on the results of two bench-top capillary barrier experiments, and associated modeling. These experiments were conducted to...
Resource Type:: Masters Thesis
Full Text:: School I understand that my thesis will become part of the permanent collection of Oregon State

Physical characteristics of forest soils after timber harvest and tillage in central Oregon: a case study

Creator:: Litton, Sabrina
Abstract:: This study examined the effects of timber harvest and subsoiling on soil physical properties considered important to forest productivity and hydrologic concerns. Ground based mechanical timber harvesting on some soil types can cause soil disturbance including compaction. These effects in turn can influence multiple important soil physical properties that affect...
Resource Type:: Capstone Project
Full Text:: because without it, none of this would have ever been possible. I would also like to thank my Major

Influence of log truck traffic and road hydrology on sediment yield in western Oregon

Creator:: Miller, Rebecca H.
Abstract:: An understanding of the factors that influence surface erosion from roads is necessary to prevent and mitigate sediment production from forest roads. This study investigated the impacts of log truck traffic and road hydrology on sediment yield from ten forest road segments in the foothills of the Cascade Mountains of...
Resource Type:: Masters Thesis
Full Text:: Dean of the Graduate School I understand that my thesis will become

Linking Pore-scale Fluid-Fluid Interfacial Curvature in Porous Media to Capillary Pressure and Local Morphology with A Novel Method for Curvature Measurement

Creator:: Li, Tianyi
Abstract:: Systems that contain multi-phase flow in porous media are of interest in diverse fields including environmental engineering, hydrogeology, and petroleum engineering etc. One of the main descriptors of multi-phase flow in porous media is the relationship between capillary pressure and fluid saturation. Capillary pressure is inherently a pore-scale variable and...
Resource Type:: Masters Thesis
Full Text:: Dean of the Graduate School I understand that my thesis will become

Measuring Electron Activity to Constrain the Role of Soil Structure in the Formation of Biogeochemical Heterogeneity

Creator:: Wanzek, Thomas
Abstract:: Soils have a critical role in global carbon (C) cycling, containing one of the largest fast-cycling carbon stocks on earth. Robust representation of soil organic matter dynamics in Earth System Models is critical for future climate prediction. Current C cycling models assume that all C cycling in non-hydric (i.e. ‘upland’)...
Resource Type:: Masters Thesis
Full Text:: systems Authors: Thomas Wanzek1*,, Marco Keiluweit2, John Baham1, Maria I. Dragila1, Scott

Optimization of capillary trapping of CO2 sequestration in saline aquifers, Optimization of capillary trapping of CO₂ sequestration in saline aquifers

Creator:: Harper, Elizabeth J.
Abstract:: Geological carbon sequestration, as a method of atmospheric greenhouse gas reduction, is at the technological forefront of the climate change movement. During sequestration, carbon dioxide (CO₂) gas effluent is captured from coal fired power plants and is injected into a storage saline aquifer or depleted oil reservoir. In an effort...
Resource Type:: Masters Thesis
Full Text:: _______________________________________________________________________ Dean of the Graduate School I understand that my thesis will become part of

ScholarsArchive@OSU

Thermodynamics of non-dilute saline solutions in variably saturated porous media

Determining contact angle of solutions with varying surface tension on dry and pre-wetted silica sands

Predictive mapping of landtype association maps in three Oregon national forests

Exploring Colloid Transport in Unsaturated Porous Media Using X-Ray Microtomography

Flow processes in the dry regime : the effect on capillary barrier performance

Physical characteristics of forest soils after timber harvest and tillage in central Oregon: a case study

Influence of log truck traffic and road hydrology on sediment yield in western Oregon

Linking Pore-scale Fluid-Fluid Interfacial Curvature in Porous Media to Capillary Pressure and Local Morphology with A Novel Method for Curvature Measurement

Measuring Electron Activity to Constrain the Role of Soil Structure in the Formation of Biogeochemical Heterogeneity

Optimization of capillary trapping of CO2 sequestration in saline aquifers, Optimization of capillary trapping of CO₂ sequestration in saline aquifers

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