Index Catalog // ScholarsArchive@OSU

Calcium Ion Transport via Seeping Flow Events through Epikarst Microfissures

Creator:: Windom, Lisa M.
Abstract:: Solute transport models in karst groundwater must consider variable and complex flow regimes. Within fissures less than 2 mm in aperture, during unsaturated flow events, seeping flow may flow as films or under capillary tension as a capillary rivulet. This project focuses on exploring the mass transport characteristics of seeping...
Resource Type:: Masters Thesis

Characterizing the response of coralline algae to ocean acidification and nutrient changes in the California Current system

Creator:: Letzing, Sandy
Abstract:: Ocean acidification (OA) has emerged as an important focus of research and policy in this decade. Ocean acidification specifically refers to changes in the inorganic carbon system in the ocean resulting from its absorption of human-released CO₂ from the atmosphere. Anthropogenic atmospheric CO₂ levels are rapidly increasing; much of this...
Resource Type:: Masters Thesis
Full Text:: helping me, Karina Nielson, Rick Colwell and GCR Sally Hacker. Your time, input and guidance were

Visualization and characterization of biofilm spatial distribution in porous media using x-ray computed microtomography

Creator:: Iltis, Gabriel C.
Abstract:: This work focuses primarily the development of methods for imaging microbial biofilms in opaque porous media using x-ray computed microtomography (CT). Two methods for evaluating biofilms in porous media are presented. The first focuses on the addition of silver-coated, hollow glass microspheres to a biofilm-containing micro-model. The silver-coated microspheres affix...
Resource Type:: Dissertation

Energy recovery from biodiesel waste : performance of microbial electrochemical systems on glycerol

Creator:: Chignell, Jeremy
Abstract:: Pure glycerol and the crude waste glycerin byproduct of biodiesel production were tested as substrates for electricity production in single-chamber, air-cathode microbial fuel cells (MFCs) and in single-chamber microbial electrolysis cells (MECs), using pure and mixed microbial cultures as anode biocatalyst. Current densities of 0.40 A/m² and 0.13 A/m² were...
Resource Type:: Masters Thesis

From Micro to Macro: Insights into Biogeochemical Mechanisms that Shape Marine Systems

Creator:: Seabrook, Sarah
Abstract:: Biogeochemical mechanisms employed by key organisms, or symbiotic associations of organisms, transform the function and structure of their environment through processes recognized as ecosystem engineering. This dissertation seeks to investigate organism-ecosystem interactions that serve globally significant ecological functions in marine systems and impact how systems respond to environmental change. Using...
Resource Type:: Dissertation
Full Text:: , Rick Colwell and Nicole Raineault in research endeavors, project development, personal development

Unraveling the Diagenetic Cycling and Sequestration of Rare Earth Elements (REEs) in Marine Sediments to Understand REE Accumulation in Ancient Shales

Creator:: Yang, Jon
Abstract:: The rare earth elements (REEs) have been established as powerful tracers for a range of physiochemical processes occurring in the natural environment. They also hold significant economic importance as many technological advancements are reliant upon the REEs for their unique magnetic, luminescent, and electrochemical characteristics. In sedimentary settings, understanding the...
Resource Type:: Dissertation
Full Text:: run aground and stayed there. To my committee members, Dr. Brian Haley, Dr. Jim McManus, Dr. Rick

Single-Cell Genomics of Uncultivated Marine Bacteria

Creator:: Landry, Zachary
Abstract:: Historically, the difficulty of obtaining pure cultures of abundant marine microbial plankton has an obstacle to reconstructing the underlying mechanisms of biogeochemistry in the ocean. While a number of dominant marine species from the ocean surface have been cultured, the dominant microbial plankton of the dark ocean proved far more...
Resource Type:: Dissertation

Climate change impacts on mountain snowpack presented in a knowledge to action framework

Creator:: Sproles, Eric A.
Abstract:: Throughout many of the world’s mountain ranges snowpack accumulates during the winter and into the spring, providing a natural reservoir for water. As this reservoir melts, it fills streams and recharges groundwater for over 1 billion people globally. Despite its importance to water resources, our understanding of the storage capacity...
Resource Type:: Dissertation
Full Text:: graduate council representative, Dr. Rick Colwell for his time and efforts

Microbial enhanced oil recovery : a pore-scale investigation of interfacial interactions

Creator:: Armstrong, Ryan T.
Abstract:: Current oil production technologies recover only about one‐third to one‐half of the oil originally present in an oil reservoir. Given current oil prices, even a modest increase in oil recovery efficiency is fiscally attractive. One novel approach to increase oil recovery efficiency is a process called microbial enhanced oil recovery...
Resource Type:: Dissertation

Distribution, decay, and quantification of fecal source-tracking markers

Creator:: Green, Hyatt C.
Abstract:: Waterborne fecal contamination poses serious risks to human health and can disrupt aquatic ecosystems. Molecular marker methods are widely used to identify and, in some cases, quantify the sources of contamination and guide management decisions regarding water resource protection. However, methods to detect some likely sources of fecal contamination such...
Resource Type:: Dissertation

ScholarsArchive@OSU

Calcium Ion Transport via Seeping Flow Events through Epikarst Microfissures

Characterizing the response of coralline algae to ocean acidification and nutrient changes in the California Current system

Visualization and characterization of biofilm spatial distribution in porous media using x-ray computed microtomography

Energy recovery from biodiesel waste : performance of microbial electrochemical systems on glycerol

From Micro to Macro: Insights into Biogeochemical Mechanisms that Shape Marine Systems

Unraveling the Diagenetic Cycling and Sequestration of Rare Earth Elements (REEs) in Marine Sediments to Understand REE Accumulation in Ancient Shales

Single-Cell Genomics of Uncultivated Marine Bacteria

Climate change impacts on mountain snowpack presented in a knowledge to action framework

Microbial enhanced oil recovery : a pore-scale investigation of interfacial interactions

Distribution, decay, and quantification of fecal source-tracking markers

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