Index Catalog // ScholarsArchive@OSU

Characterization of high temperature fatigue mechanisms in Haynes 282 nickel based superalloy

Creator:: Rozman, Kyle A.
Abstract:: Electric power needs will only grow over the next decades as more humans ascend from poverty into the middle class. Currently, the majority of electric power is generated by burning fossil fuels. To help mitigate the undesirable effects of burning fossil fuels research is being done to increase the efficiency...
Resource Type:: Dissertation

Predicting the spatial variability in soil properties using DSM across Malheur National Forest

Creator:: Seeno, Elizabeth A.
Abstract:: Soil properties may hold the key to improved predictions of soils during digital soil mapping (DSM), which has developed with a focus on environmental factors external to soil. The spatial variability in soil properties was modeled across Malheur National Forest in eastern Oregon as an approach to improve DSM. The...
Resource Type:: Masters Thesis
Full Text:: : Jay S. Noller Soil properties may hold the key to improved predictions of soils during digital soil

Merging Field Work with Machine Learning : Exploring Andic Soil Development in the Cascade Range

Creator:: Osterloh, Kristopher Richard
Abstract:: Andic soils (aka Andisols) have unique properties that are important to society. For soil scientists, the genesis and taxonomy of Andisols is often confused because they can form in both volcanic and non-volcanic material. This dissertation seeks to address such confusion by looking at andic soil development in the Cascade...
Resource Type:: Dissertation
Full Text:: approved: Jay S. Noller Andic soils (aka Andisols) have unique properties that are important to society

Scaling, ash-driven bistability, and other agents of soilscape genesis discovered while digitally mapping soils of the Blue Mountains, Oregon

Creator:: Almquist, Vance Warner
Abstract:: This dissertation reports on four related, though separate projects. The first project details the process of carrying out a digitally augmented soil mapping (DSM) effort alongside an ongoing survey in Oregon's Ochoco National Forest (ONF) using a Random Forest algorithm. The second chapter describes a initial soil survey in Oregon's...
Resource Type:: Dissertation
Full Text:: soils of the Blue Mountains, Oregon Abstract approved: Jay Stratton Noller The spatial and temporal

The role of near-stream zones on flow, chemistry and isotopic composition at the headwater scale

Creator:: Frentress, Jay
Abstract:: Stream discharge is a key water balance component and important factor in global change evaluations. Nevertheless, the mechanisms for streamflow generation are poorly understood. Near- stream surface saturation during precipitation events is one of the most iconic, visible indicators of rapid runoff production in upland humid catchments around the world....
Resource Type:: Dissertation
Full Text:: . AN ABSTRACT OF THE DISSERTATION OF Jay Frentress for the degree of Doctor of Philosophy in Water

An evaluation of biological control of Linaria dalmatica with Mecinus janthinus in Oregon

Creator:: Park, Alexander
Abstract:: Dalmatian toadflax (Linaria dalmatica) has become a prolific invasive plant of rangelands in Oregon since its arrival in the early 20th century. In 2001, the Oregon Department of Agriculture initiated a release program promoting the distribution of the stem-boring weevil, Mecinus janthinus as classical biological control agent to reduce densities...
Resource Type:: Masters Thesis
Full Text:: the ODA employees that helped collect this data over more than a decade – Bonnie Rasmussen, Glenn

Interactions between ecosystem nitrogen and bedrock control long-term calcium sources in Oregon Coast Range forests

Creator:: Hynicka, Justin D.
Abstract:: Ecosystem nitrogen (N) supply strongly influences the availability and cycling of other essential nutrients in temperate forests, especially calcium (Ca). Short-term additions of N that exceed ecosystem demands often increase dissolved nitrate fluxes and decrease soil pH, which can stimulate soil Ca loss. However, the long-term effects of high N...
Resource Type:: Masters Thesis
Full Text:: continual support. I would also like to thank my other committee members, David Hibbs and Jay Noller, for

Paleoenvironmental Reconstruction of Late Pleistocene and Holocene Human Ecologies: A Case Study of Phytoliths from the Lower Salmon River Canyon, Idaho

Creator:: Knapp, Dante L.
Abstract:: Archaeological excavations of the Cooper's Ferry site in the Lower Salmon River Canyon, Idaho, have revealed a stratified record of cultural occupation, spanning the late Pleistocene and early Holocene periods. The purpose of this study was to contribute to the understanding of cultural adaptive strategies represented in the archaeological record...
Resource Type:: Masters Thesis
Full Text:: . Jay Noller and Leah Minc—for their guidance and leadership. To faculty from the Departments of

Toward the development of screening tests for heart attacks and back injuries in firefighters : a study to investigate back-specific fitness, perceived fitness and aerobic capacity in a firefighter population

Creator:: Moore, Karlie J.
Abstract:: Firefighting is a very hazardous profession. Firefighters experience an injury rate that is three times higher than other physically demanding professions and the death rate in the fire service is also much higher compared to typical. Throughout the literature, data suggest the physical nature of firefighting contributes to the high...
Resource Type:: Dissertation
Full Text:: , Parpa, Thompson, & Brown, 2008; Rhea, Alvar, & Gray, 2004; von Heimburg, Rasmussen, & Medbo, 2006

An assessment of plant community structure, herbivory, soils, and state-and-transition theory on a winterfat (Krascheninnikovia lanata [Pursh] A.D.J. Meeuse & Smit) ecological site

Creator:: Matney, Casey A.
Abstract:: State-and-transition models (STMs) have been successfully used to describe ecological dynamics in woodlands, shrublands, grasslands, and several other ecosystems. Changes in vegetation and soil are measured to gauge and predict plant community dynamics within ecological states and transitions between alternative ecological states. Ecological states and their boundaries are defined by...
Resource Type:: Dissertation
Full Text:: . Next, my committee members; Steven Petersen, Jay Noller, John Buckhouse, and Cynthia Ocamb, your

ScholarsArchive@OSU

Characterization of high temperature fatigue mechanisms in Haynes 282 nickel based superalloy

Predicting the spatial variability in soil properties using DSM across Malheur National Forest

Merging Field Work with Machine Learning : Exploring Andic Soil Development in the Cascade Range

Scaling, ash-driven bistability, and other agents of soilscape genesis discovered while digitally mapping soils of the Blue Mountains, Oregon

The role of near-stream zones on flow, chemistry and isotopic composition at the headwater scale

An evaluation of biological control of Linaria dalmatica with Mecinus janthinus in Oregon

Interactions between ecosystem nitrogen and bedrock control long-term calcium sources in Oregon Coast Range forests

Paleoenvironmental Reconstruction of Late Pleistocene and Holocene Human Ecologies: A Case Study of Phytoliths from the Lower Salmon River Canyon, Idaho

Toward the development of screening tests for heart attacks and back injuries in firefighters : a study to investigate back-specific fitness, perceived fitness and aerobic capacity in a firefighter population

An assessment of plant community structure, herbivory, soils, and state-and-transition theory on a winterfat (Krascheninnikovia lanata [Pursh] A.D.J. Meeuse & Smit) ecological site

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