Index Catalog // ScholarsArchive@OSU

Application of GNSS for Vertical Reference Determination

Creator:: Kim, Su-Kyung
Abstract:: Vertical datum is a reference system used for specifying the elevation of specific points on or near the Earth. Precise and accurate definition and realization of vertical references are, therefore, crucial to ensure consistency between height measurements. The vertical datums can be divided into two categories: 1) vertical geodetic datums...
Resource Type:: Dissertation
Full Text:: February 25, 2021. Title: Application of GNSS for Vertical Reference Determination. Abstract

Historical disturbance regimes as a reference for forest policy

Creator:: Thompson, Jonathan R.
Abstract:: Using the historical range of forest conditions as a reference for managing landscapes has been proposed as a "coarse-filter" approach to biodiversity conservation. By emulating historical disturbance processes, it is thought that forest management can produce forest composition and structure similar to the conditions that once supported the native biota....
Resource Type:: Masters Thesis
Full Text:: Disturbance Regimes as a Reference for Forest Policy Abstract approved: ____________________ _ K. Norman

An ultra low power frequency reference for timekeeping applications

Creator:: Oporta, Hector Ivan
Abstract:: An ultra low power crystal oscillator that provides a frequency reference for battery powered timekeeping applications is presented. An amplitude control circuit is employed to ensure that minimum current is consumed. A subthreshold voltage regulator provides a supply voltage for the oscillator with minimum current consumption. The oscillator and regulator...
Resource Type:: Masters Thesis
Full Text:: Ultra Low Power Frequency Reference For Timekeeping Applications Abstract approved: Terri S. Fiez

A Pro-Inflammatory Agent, Lipopolysaccharide, Can Mimic the Effects of Aging on Spatial Reference Memory

Creator:: Escobedo, Emily R.
Abstract:: Humans and rodents experience declines in reference (long-term) and working (short-term) memory and cognitive flexibility during the aging process. Aging changes in GluN1 and GluN2B subunits of N-methyl-D-aspartate (NMDA) receptors show a relationship to both reference and working memory deficits. Sulindac, an anti-inflammatory drug, enhances working memory and NMDA receptor...
Resource Type:: Undergraduate Thesis

Comparison of dosimetric modeling of the International Commission on Radiological Protection trout reference animal

Creator:: Comolli, Michelle LeAnne
Abstract:: Radiation protection has historically been from a human protection approach, therefore many studies have neglected the potential dose contribution from the gastrointestinal tract (GIT) in animal studies. The International Commission on Radiological Protection (ICRP) utilized simplified geometric shapes with Dose Conversion Factors (DCF) based on homogenized models for the trout...
Resource Type:: Masters Thesis
Full Text:: ).................................................................... 42 Table 6: Reference Trout DCFs ( 90 Sr

Spatial relationships for vegetation in restored and reference salt marshes in the Salmon River Estuary, Oregon

Creator:: Chellew, Megan
Abstract:: In this thesis, the spatial patterns of vegetation and soils of reference and restored tidal marshes were compared to determine the extent to which restored sites differ from the reference site after 40 years of restoration. Vegetation surveys of 1m x 1m plots were conducted along previously-established transects of salt...
Resource Type:: Masters Thesis
Full Text:: Relationships for Vegetation in Restored and Reference Salt Marshes in the Salmon River Estuary, Oregon

An Ecoregion-Based Reference Condition and Classification Scheme for Determining Nutrient Criteria in Oregon Lakes

Creator:: Brenner, Jacqueline M.
Abstract:: The anthropogenic introduction of nutrients to water bodies has been shown to alter the structure and function of natural aquatic ecosystems, yet national EPA lake and reservoir nutrient criteria remain too broad for effective regional water quality management. This study uses a reference site approach to propose numeric nutrient criteria...
Resource Type:: Masters Thesis
Full Text:: ………………………………33 Table 5 Reference Condition by Omernik Ecoregion……………….……………………….…51 Table 6 Summary

Exploring the Differences between Lagrangian and Eulerian Reference Frames for Stream Temperature Data

Creator:: Egan, Fey Frentress
Abstract:: Stream temperature research relies on reference frames in which to project data. An important decision in the project design is which frame of reference to use. This aspect of research planning is not always given the consideration of thought that would lead to the best decision. In this thesis, two...
Resource Type:: Honors College Thesis
Full Text:: .................... 15 6. Line plots graphed every two hours starting at 11 AM in the Lagrangian reference frame

Effects of pesticides on amphibians with special reference to the pyrethroidinsecticide, cypermethrin

Creator:: Biga, Lindsay M.
Abstract:: Pollution by pesticides is a ubiquitous concern for wildlife. The effects of pesticides are especially concerning in aquatic environments, which are particularly vulnerable as they have several exposure routes for the influx of chemicals. These effects are of particular concern as biodiversity loss reaches unprecedented rates. This includes recent declines...
Resource Type:: Dissertation
Full Text:: K er by 2 00 6 H op lo ba tr ac hu s t ig er in us TG P 5. 68 Sa m pa th

Evaluating Methods of Aligning Real-Time GNSS Networks to the National Spatial Reference System

Creator:: Ohene, William
Abstract:: Aligning Real-Time Networks (RTNs) with the National Spatial Reference System (NSRS) is crucial to ensure accuracy, consistency, interoperability, and long-term data integrity for geospatial applications. However, the effectiveness of different alignment methods as well as the need for monitoring approaches to maintain alignment consistency with the NSRS have not yet...
Resource Type:: Masters Thesis
Full Text:: : Evaluating Methods of Aligning Real-Time GNSS Networks to the National Spatial Reference System

ScholarsArchive@OSU

Application of GNSS for Vertical Reference Determination

Historical disturbance regimes as a reference for forest policy

An ultra low power frequency reference for timekeeping applications

A Pro-Inflammatory Agent, Lipopolysaccharide, Can Mimic the Effects of Aging on Spatial Reference Memory

Comparison of dosimetric modeling of the International Commission on Radiological Protection trout reference animal

Spatial relationships for vegetation in restored and reference salt marshes in the Salmon River Estuary, Oregon

An Ecoregion-Based Reference Condition and Classification Scheme for Determining Nutrient Criteria in Oregon Lakes

Exploring the Differences between Lagrangian and Eulerian Reference Frames for Stream Temperature Data

Effects of pesticides on amphibians with special reference to the pyrethroidinsecticide, cypermethrin

Evaluating Methods of Aligning Real-Time GNSS Networks to the National Spatial Reference System

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