Index Catalog // ScholarsArchive@OSU

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:: the time spent working with the bio-water group. I thank my committee member, Jeff Nason, for

The effect of silver ions and nanoparticles on biofilms and planktonic cultures of Nitrosomonas europaea

Creator:: Giska, Jonathan R.
Abstract:: Due to the effective antimicrobial properties of silver nanoparticles they represent a significant proportion of all consumer-‐related nanomaterials. The introduction of silver nanoparticles from these products into domestic and industrial wastewater streams poses potential complications for biological treatment systems. A critical component of biological treatment that is extremely sensitive to...
Resource Type:: Masters Thesis

Hydraulic characterization and modeling of the Talking Water Garden wetland for evaluation of nitrogen removal

Creator:: Huang, Tao
Abstract:: The purpose of this research is to hydraulically characterize an engineered wetland in Albany, Oregon. The wetland receives treated wastewater from both Albany Millersburg Water Reclamation Facility (AMWRF) and ATI Wah Chang. AMWRF's water is municipal waste water. ATI Wah Chang's water comes from its nearby metal processing plant. The...
Resource Type:: Masters Thesis
Full Text:: equipment. Jeff Hart was the other graduate student who worked on this project. He provided assistance

Reflection and Dissection in Engineering Education : Exploring Critical Elements of Active Learning and their Roles in Course Structures

Creator:: Keeler, Jessie
Abstract:: This thesis focuses on active learning through four different studies that include metacognitive and cognitive aspects of learning designs to support active learning and a contextual analysis of the implementation of teaching tools used in active learning. The first three investigate important elements of active learning whereas the fourth study...
Resource Type:: Masters Thesis
Full Text:: Introduction, Background, and Discussion sections. Jeffery Nason contributed his perspective as the

Biases in droplet radii and optical depths of marine stratocumulus retrieved from MODIS imagery

Creator:: Boeke, Robyn C.
Abstract:: The 2007 Intergovernmental Panel on Climate Change assessment established that the effect of clouds on climate contributes the largest uncertainty in predicting the future climate. Satellite observations provide an opportunity for learning about the behavior of clouds. This thesis seeks to assess the accuracy of cloud properties retrieved from multispectral...
Resource Type:: Masters Thesis
Full Text:: thank Drs. Eric Skyllingstad, Karen Shell, and Jeff Nason for serving on my committee, as well as NASA

Consistency and effectiveness of advisory speeds: an evaluation of current posting techniques

Creator:: Rohani, Joshan W.
Abstract:: Crash rates are said to be nearly three times higher on curved sections than those on straight sections of rural roadways. As a result, advisory curve/speed signs are standard practice to mitigate these risks on sharp horizontal curves. The industry standard for determining appropriate and uniform speeds for such signs...
Resource Type:: Masters Thesis

Organic/Inorganic Hybrid Materials of Uranyl Peroxide Clusters and Uranium Minerals

Creator:: Neal, Harrison A.
Abstract:: Frontier research of non-aqueous actinide clusters is discussed. Since the inception of the uranyl peroxide clusters over the last decade, they have only been synthesized and characterized as solid crystals and in aqueous solution. This thesis provides thorough characterization of aqueous uranyl clusters and the first demonstration of uranyl cluster...
Resource Type:: Dissertation

Probing Aqueous Ion-Pairing and Speciation of Group V Polyoxometalates

Creator:: Sures, Dylan J.
Abstract:: Polyoxometalates are discrete anionic oxo clusters of the Group V and VI transition metals that can be conceptualized as molecular metal oxides. Because they are pairable with any alkali cation, a great deal of fundamental chemistry can be gleaned from their study, including solubility trends and insight into cation binding...
Resource Type:: Dissertation

Concerns During Development and Implementation of Research-Based Curricular Materials

Creator:: Panther, Grace C.
Abstract:: Decades of educational research has not reached and benefited most students due to the "implementation gap." The implementation gap is a term used to describe the divide between the number of research-based curricular materials created and the number that are broadly used in classrooms. A common approach to researching this...
Resource Type:: Masters Thesis
Full Text:: thesis committee: Dr. Kacey Beddoes, Dr. Shane Brown, Dr. Bryony DuPont and Dr. Jeff Nason

An investigation into the pore-scale mechanisms of capillary trapping : application to geologic CO₂ sequestration

Creator:: Herring, Anna L.
Abstract:: Geologic CO₂ sequestration is a climate change mitigation strategy that prevents CO₂ emissions to the atmosphere by capturing CO₂ gasses from large point source emissions streams and then pressurizing and pumping the supercritical-state CO₂ into underground geologic storage reservoirs. Once underground, CO₂ is prevented from buoyant migration to the surface...
Resource Type:: Dissertation

ScholarsArchive@OSU

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

The effect of silver ions and nanoparticles on biofilms and planktonic cultures of Nitrosomonas europaea

Hydraulic characterization and modeling of the Talking Water Garden wetland for evaluation of nitrogen removal

Reflection and Dissection in Engineering Education : Exploring Critical Elements of Active Learning and their Roles in Course Structures

Biases in droplet radii and optical depths of marine stratocumulus retrieved from MODIS imagery

Consistency and effectiveness of advisory speeds: an evaluation of current posting techniques

Organic/Inorganic Hybrid Materials of Uranyl Peroxide Clusters and Uranium Minerals

Probing Aqueous Ion-Pairing and Speciation of Group V Polyoxometalates

Concerns During Development and Implementation of Research-Based Curricular Materials

An investigation into the pore-scale mechanisms of capillary trapping : application to geologic CO₂ sequestration

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