Browsing College of Science by Title

Now showing items 676-695 of 1003

Occurrence and Distribution of Urban Organic Pollutants in the Pohick Region of the Potomac River Watershed (Virginia, USA)

Dove II, Kevin J. (2010-06-17)

Polycyclic Aromatic Hydrocarbons (PAHs), Polychlorinated Biphenyls (PCBs) and several Endocrine Disrupting Compounds were examined in the Pohick Bay region of the Potomac River, Virginia, USA. Urban Organic Pollutants ...
On Extremal Coin Graphs, Flowers, and Their Rational Representations

Dunham, Jill Bigley (2009-07-06)

We study extremal coin graphs in the Euclidean plane on n vertices with the maximum number of edges. This is related to the unit coin graph problem first posed by Erdos in 1946, and considers coin graphs that satisfy ...
On Privacy in Spatio-Temporal Data: User Identification Using Geotagged Social Media

Seglem, Erik

Location data is among the most sensitive data regarding the privacy of the observed users. To collect location data, mobile phones and other mobile devices constantly track their positions. This work examines the question ...
On the Identification and Study of Polycentric Nation Models through the Geosocial Analysis of Social Media Content

Cotnoir, Amy Elizabeth (2015-03-24)

The premise of this work is the notion that the emergence of social media is providing another challenge to Westphalian statehood as it was conceived in the 1600s. As social media support user interaction and information ...
On the simulation of ship motions induced by extreme waves

Lu, Haidong (2010-02-15)

In rough sea conditions, ships or offshore structures may experience highly nonlinear phenomena such as slamming and green water on deck. Impact loads due to slamming and green water shipping are associated with highly ...
On Validated Equilibria and Bifurcations in Materials Science and Stochastic Dynamics

Rizzi, Peter (2022)

Partial Differential Equations (PDEs) and their solutions provide a theoretically rich, widely applicable, and analytically challenging subfield of mathematics and physics. In the applied setting, analytical solutions are ...
OPTIMAL CONTROL PROBLEMS CONSTRAINED BY FRACTIONAL PDES AND APPLICATION TO DEEP NEURAL NETWORKS

Deepanshu Verma (2021)

Motivated by several applications in geophysics, imaging, machine learning, elasticity, finance, anomalous diffusion, etc., this thesis develops algorithms to solve optimal control problems constrained by fractional partial ...
Optimal Sampling of Random Fields for Topological Analysis

Cochran, Gregory Scott (2011-08-22)

Algebraic topology is becoming an increasing important tool in applied mathematics. In particular, homology theory allows one to distinguish different topologies while being tractable to compute. An important application ...
The Optimization of a Cost-Effective Lentiviral Vector Production Protocol for Animal Gene Therapy Trials

Hetrick, Brian

This thesis describes a cost effective method for the mass production of lentiviral vector particles for the use in animal gene therapy trails. Viral gene therapy is the process by which genes can be introduced, integrated, ...
Optimization of Fluid Solvers with Respect to Fault Tolerance and Memory Latency

Atis Degro (2020)

Constant advancement of computational systems lifts the theoretical boundaries of what is possible to achieve with numerical simulations. In order to fully utilize the capabilities of advanced computational resources, ...
Optimizing Access to Big Earth Observation Data with Spatiotemporal Patterns -- An Example with the GEOSS Clearinghouse

Xia, Jizhe (2015)

Big Data becomes increasingly important in almost all scientific domains, especially in geographical studies where millions to billions of sensors are collecting data of the Earth continuously. Recognizing the importance ...
Optimizing an Index with Spatiotemporal Patterns to Support GEOSS Clearinghouse

Xia, Jizhe (2013-02-18)

Big Data becomes increasingly important in almost many scientific domains, especially in geographic science where hundreds to millions of sensors are collecting data of the Earth continuously (Whitehouse News 2012). The ...
Optimizing Geospatial Cyberinfrastructure to Improve the Computing Capability for Climate Studies

Li, Zhenlong (2015)

Climate simulation has significant uncertainties due to our current limited understanding of the processes and interactions between different components of the Earth. Model sensitivity analysis, which tests the sensitivity ...
Optimizing Search Plans for Teams of Mobile and Stationary Searchers With a New Class of Searchers Over a Multi-Zoned Domain and Finite Time

Grewe, Jarrod Grewe Keith (2022)

This dissertation introduces a new search theory methodology, nicknamed Pathfinder, that can optimize teams of heterogeneous mobile and stationary searchers as well as searchers that can transport other searchers. In ...
Optimizing the Coverage of Navigable Waterways: The Optimal Placement of Environmental Monitoring Stations

Mackessy-Lloyd, Trevor

This paper presents a method for optimally placing environmental monitoring stations to maximize coverage of areas that enhance the safety of commercial marine navigation. This method is based on traditional maximal covering ...
Oracle Compound Decision Rules for False Discovery Rate Control in fMRI studies

Chen, Nan (2013-08-15)

The recent advance on functional magnetic resonance imaging (fMRI) allows scientists to assess functionality of the brain by measuring the response of blood flow to one or multiple types of stimuli. The analysis of fMRI ...
Origin and evolution of cultivated Agrostis spp.

Amundsen, Keenan (2009-11-12)

Creeping bentgrass (Agrostis stolonifera L.) is a highly outcrossing allotetraploid species important to the turfgrass industry because it has unique growth and aesthetic characteristics that make it ideally suited for ...
Origin, Distribution, Morphology, and Chemistry of Amphiboles in the Ironwood Iron-Formation, Gogebic Iron Range, Wisconsin, U.S.A.

Green, Carlin J

The Ironwood Iron-Formation, located in the Gogebic Iron Range in Wisconsin, is one of the largest undeveloped taconite resources in the United States. Interest in the development of this resource is complicated by potential ...
Origins of the Eukaryotic DNA Polymerase III Alpha Subunit Entries in the Protein Sequence Databases

Luo, Xingyu

DNA polymerase III is a prokaryotic protein, which is usually not found in eukaryotes, however protein sequence databases contain hundreds of entries for eukaryotic proteins labeled or annotated as DNA polymerase III subunit ...
Otter Social Science Research: An Evaluation of the General Public’s Knowledge of Otter Species

Scott, Caitlyn

Otters are a charismatic species that are frequently overlooked and have been depleted throughout history by the fur industry, habitat degradation, and conflicts between otters and commercial fisherman, leaving several ...

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