High Dynamic Range Imaging For The Detection Of Motion., 2011 University of Louisville

#### High Dynamic Range Imaging For The Detection Of Motion., Jeffrey Robert Hay

*Electronic Theses and Dissertations*

High dynamic range imaging involves imaging at a bit depth higher than the typical 8-12 bits offered by standard video equipment. We propose a method of imaging a scene at high dynamic range, 14+ bits, to detect motion correlated with changes in the measured optical signal. Features within a scene, namely edges, can be tracked through a time sequence and produce a modulation in light levels associated with the edge moving across a region being sampled by the detector. The modulation in the signal is analyzed and a model is proposed that allows for an absolute measurement of the displacement ...

Great Salt Lake Watershed: Its Role In Maintaining The Wetlands Of The Great Salt Lake, 2011 Utah State University

#### Great Salt Lake Watershed: Its Role In Maintaining The Wetlands Of The Great Salt Lake, Danny C. White Jr.

*All Graduate Plan B and other Reports*

The following bioregional planning study is a direct result of the 2009- 2010 studio project initiated by the United States Fish and Wildlife Service (FWS). The FWS contacted the study team and asked them to determine how the future growth and development of the Bear River Watershed would impact the Bear River Migratory Bird Refuge (BRMBR). The study looked at all of the physical and biophysical systems within the Bear River Watershed to identify the issues that had an effect on the BRMBR.

It became apparent from the original project that the future of the BRMBR and other Great Salt ...

On The Behavior Of The Asymptotics Of Robertson-Walker Cosmologies As A Function Of The Cosmological Constant, 2011 University of Tennessee, Knoxville

#### On The Behavior Of The Asymptotics Of Robertson-Walker Cosmologies As A Function Of The Cosmological Constant, Noah Thomas Schaefferkoetter

*Masters Theses*

An analysis of the Einstein Field Equations within a Robertson-Walker Cosmology. More specifically, what values of the cosmological constant will result in a Big Bang.

Spatial Variations In Willingness To Pay For Water At The Local And Regional Scales Using Geographically Weighted Regression, 2011 University of Arkansas, Fayetteville

#### Spatial Variations In Willingness To Pay For Water At The Local And Regional Scales Using Geographically Weighted Regression, Robyn Lane Dennis

*Graduate Theses and Dissertations*

Two decades of rapid urban growth and increasing per capita water consumption has left water providers in Northwest Arkansas concerned about their ability to meet future demand for water. Beaver Water District (BWD) is the largest of four regional water providers that draw from Beaver Lake, the only source of potable water in the region. Growth projections and per capita consumption patterns indicate that BWD could exhaust its raw water allocation as early as 2031. Municipal water customers served by BWD were surveyed about their stated priorities for water use, their water conservation behaviors, and their attitudes and perceptions about ...

Protein-Lipid Interactions: Influence Of Anchoring Groups And Buried Arginine On The Properties Of Membrane-Spanning Peptides, 2011 University of Arkansas, Fayetteville

#### Protein-Lipid Interactions: Influence Of Anchoring Groups And Buried Arginine On The Properties Of Membrane-Spanning Peptides, Vitaly V. Vostrikov

*Graduate Theses and Dissertations*

Designed transmembrane peptides were employed for investigations of protein-lipid interactions by means of oriented solid-state deuterium NMR spectroscopy using isotope-enriched alanine residues. Using the model GWALP23 sequence (GGALW(LA)6LWLAGA) as a host peptide having single interfacial tryptophan anchor residues, the effects of different guest mutations were explored. Replacements of glycine residues 2 and 22 to positively charged lysine or arginine on both termini had little influence on the peptide average orientation. Conversely, glycine to tryptophan substitutions had profound effects, manifested in the increased dynamics and altered tilt direction of the peptide. While the charged residues at the peptide termini ...

Arecibo Palfa Survey And Einstein@Home: Binary Pulsar Discovery By Volunteer Computing, 2011 University of Texas Rio Grande Valley

#### Arecibo Palfa Survey And Einstein@Home: Binary Pulsar Discovery By Volunteer Computing, B. Knispel, P. Lazarus, B. Allen, D. Anderson, C. Aulbert, N. D.R. Bhat, O. Bock, S. Bogdanov, A. Brazier, F. Camilo, S. Chatterjee, J. M. Cordes, F. Crawford, J. S. Deneva, G. Desvignes, H. Fehrmann, P. C.C. Freire, D. Hammer, J. W.T. Hessels, F. A. Jenet, V. M. Kaspi, M. Kramer, J. Van Leeuwen, D. R. Lorimer, A. G. Lyne, B. Machenschalk, M. A. Mclaughlin, C. Messenger, D. J. Nice, M. A. Papa

*Physics and Astronomy Faculty Publications and Presentations*

We report the discovery of the 20.7ms binary pulsar J1952+2630, made using the distributed computing project Einstein@Home in Pulsar ALFA survey observations with the Arecibo telescope. Follow-up observations with the Arecibo telescope confirm the binary nature of the system. We obtain a circular orbital solution with an orbital period of 9.4hr, a projected orbital radius of 2.8lt-s, and a mass function of f = 0.15 M âŠ™ by analysis of spin period measurements. No evidence of orbital eccentricity is apparent; we set a 2Ïƒ upper limit e â‰² 1.7 Ã— 10 -3 . The ...

Row Reduction Of Macaulay Matrices, 2011 University of Southern Mississippi

#### Row Reduction Of Macaulay Matrices, Lorrin Debenport

*Honors Theses*

A computer can use a matrix to represent a system of non-linear multivariate polynomial equations. The fastest known ways to transform this system into a form with desirable computational properties rely on transforming its matrix into upper-triangular form [8, 9]. The matrix for such a system will have mostly zero entries, which we call sparse [7]. We propose to analyze several methods of performing row-reduction, the process by which matrices are reduced into upper-triangular form [2].

What is special about row-reducing matrices in this context? When row-reducing a matrix, swapping rows or columns is typically acceptable. However, if the order ...

Evidence Of Atmospheric Gravity Waves During The 2008 Eruption Of Okmok Volcano From Seismic And Remote Sensing Observations, 2011 University of Washington

#### Evidence Of Atmospheric Gravity Waves During The 2008 Eruption Of Okmok Volcano From Seismic And Remote Sensing Observations, S. De Angelis, Stephen R. Mcnutt, P. W. Webley

*School of Geosciences Faculty and Staff Publications*

Okmok volcano erupted on July 12, 2008, following an 11-year hiatus. Detailed inspection of the syn-eruptive seismograms revealed the presence of an ultra long-period mode at a frequency of 1.7 mHz, which is not a characteristic of the background seismic noise at Okmok. Data collected by the National Oceanic and Atmospheric Administration Geostationary Operational Environmental Satellite (GOES) and National Aeronautical and Space Administration Moderate Resolution Imaging Spectroradiometer (MODIS) sensors displayed the propagation of a vigorous ash-and-steam plume up to about 17 km above sea level. We suggest that the observed ultra long-period signals represent the response of the seismometer ...

National Park Service Cave And Karst Resources Management Case Study: Great Smoky Mountains National Park, 2011 Western Kentucky University

#### National Park Service Cave And Karst Resources Management Case Study: Great Smoky Mountains National Park, Daniel C. Nolfi

*Masters Theses & Specialist Projects*

As discussed in the National Parks Service’s (NPS) Directors Orders/Natural Resources Management Reference Manual #77 and the 2006 NPS Management Policy Handbook, implementing a management plan specifically for cave and karst resources within a national park is paramount to afford these resources appropriate protection. With support from the Federal Cave Resources Protection Act and the National Park Service Organic Act of 1906, management actions protecting caves has begun to place significant importance outside the traditional cave environment onto a broader karst landscape. The need to understand and protect the karst environment and caves as a karst resource has ...

Generalized Bathtub Hazard Models For Binary-Transformed Climate Data, 2011 Western Kentucky University

#### Generalized Bathtub Hazard Models For Binary-Transformed Climate Data, James Polcer

*Masters Theses & Specialist Projects*

In this study, we use a hazard-based modeling as an alternative statistical framework to time series methods as applied to climate data. Data collected from the Kentucky Mesonet will be used to study the distributional properties of the duration of high and low-energy wind events relative to an arbitrary threshold. Our objectiveswere to fit bathtub models proposed in literature, propose a generalized bathtub model, apply these models to Kentucky Mesonet data, and make recommendations as to feasibility of wind power generation. Using two different thresholds (1.8 and 10 mph respectively), results show that the Hjorth bathtub model consistently performed ...

Determining The Lon-Exchange Mechanism Of Strontium Into A Niobium Doped Titanosilicate, 2011 Western Kentucky University

#### Determining The Lon-Exchange Mechanism Of Strontium Into A Niobium Doped Titanosilicate, Samantha Jane Kramer

*Masters Theses & Specialist Projects*

A 25% niobium substituted sitinakite was exchanged with strontium as time resolved X-ray diffraction data was collected. The structural modeling of this data by Rietveld method1 has lead to the determination of the atomic positions of the ions and unit cell parameters as strontium occupancy increases.

The starting material of the exchange experiment is the protonated phase, H2Nb0.67Ti1.33SiO7·1.9 H2O, with space group P42/mcm2,3. Once strontium (Sr2+) enters the unit cell, extra-framework H2O molecules shift to provide the necessary hydration coordination. These new positions of H2O result in a lowering of symmetry to the P-42m ...

Development Of Fractional Trigonometry And An Application Of Fractional Calculus To Pharmacokinetic Model, 2011 Western Kentucky University

#### Development Of Fractional Trigonometry And An Application Of Fractional Calculus To Pharmacokinetic Model, Amera Almusharrf

*Masters Theses & Specialist Projects*

No abstract provided.

Population Structure Based On Age-Class Distribution Of Tapirus Polkensis From The Gray Fossil Site Tennessee., 2011 East Tennessee State University

#### Population Structure Based On Age-Class Distribution Of Tapirus Polkensis From The Gray Fossil Site Tennessee., Matthew L. Gibson

*Electronic Theses and Dissertations*

Individuals of *Tapirus polkensis* from the Gray Fossil Site exhibit an excellent level of preservation. Intact skulls collected from the site were arranged in a rough age class system separated into 7 categories based on the teeth present and amount of dental wear. Such an eruption series is useful for general comparisons amongst the individual tapirs; however, the classes do not represent an age in years due to a lack of data on living tapirs. Consequently, it is possible that some age classes may contain several years of a tapirs life, or comparatively only a few months. In this study ...

The Geozoic Supereon, 2011 Swarthmore College

#### The Geozoic Supereon, M. Kowalewski, J. L. Payne, F. A. Smith, Steve C. Wang, D. W. Mcshea, S. Xiao, P. M. Novack-Gottshall, C. R. Mcclain, R. A. Krause, A. G. Boyer, S. Finnegan, S. K. Lyons, J. A. Stempien, J. Alroy, P. A. Spaeth

*Mathematics & Statistics Faculty Works*

No abstract provided.

Developing A Remote Sensing Algorithm For Deriving Soil Moisture From Spectral Reflectance, 2011 University of North Dakota

#### Developing A Remote Sensing Algorithm For Deriving Soil Moisture From Spectral Reflectance, Santosh Rijal

*Theses and Dissertations*

Wet weather cycle since 1993 has brought ground water level closer to the surface of the soil in many areas in the Red River Valley (RRV) of the North basin. Many farmers have to delay spring plantation or autumn harvest due to excessive moisture in', their farmland. In such case, it becomes increasingly important to have timely and accurate information on the soil moisture conditions. Conventional soil moisture measurement techniques are point-based that results in poor spatial representation of soil moisture. Remote sensing techniques offer many potential advantages over traditional means such as repetitive coverage and areal representation. The objective ...

Bounded Geometry And Property A For Nonmetrizable Coarse Spaces, 2011 University of Tennessee, Knoxville

#### Bounded Geometry And Property A For Nonmetrizable Coarse Spaces, Jared R Bunn

*Doctoral Dissertations*

We begin by recalling the notion of a coarse space as defined by John Roe. We show that metrizability of coarse spaces is a coarse invariant. The concepts of bounded geometry, asymptotic dimension, and Guoliang Yu's Property A are investigated in the setting of coarse spaces. In particular, we show that bounded geometry is a coarse invariant, and we give a proof that finite asymptotic dimension implies Property A in this general setting. The notion of a metric approximation is introduced, and a characterization theorem is proved regarding bounded geometry.

Chapter 7 presents a discussion of coarse structures on ...

Dynamics Of Mushy Layers On A Finite Domain, 2011 University of Tennessee, Knoxville

#### Dynamics Of Mushy Layers On A Finite Domain, Nicholas Ray Gewecke

*Doctoral Dissertations*

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Mushy layers are regions of intermixed liquid and solid which can arise during the solidification of binary alloys, generally consisting of dendritic solids with solute-rich liquid in the interstices. They occur due to an instability resulting from the buildup of rejected solute along the solidification front. Liquid ahead of the front becomes supercooled, so disturbances to the interface grow more rapidly than the interface itself. A simple experiment has a tank filled with a uniform solution at uniform temperature being placed upon a cold surface. Early on, a small solid layer forms at the bottom capped ...

On The Homology Of Automorphism Groups Of Free Groups., 2011 University of Tennessee, Knoxville

#### On The Homology Of Automorphism Groups Of Free Groups., Jonathan Nathan Gray

*Doctoral Dissertations*

Following the work of Conant and Vogtmann on determining the homology of the group of outer automorphisms of a free group, a new nontrivial class in the rational homology of Outer space is established for the free group of rank eight. The methods started in [8] are heavily exploited and used to create a new graph complex called the space of good chord diagrams. This complex carries with it significant computational advantages in determining possible nontrivial homology classes.

Next, we create a basepointed version of the Lie operad and explore some of it proper- ties. In particular, we prove a ...

Explicit Lp-Norm Estimates Of Infinitely Divisible Random Vectors In Hilbert Spaces With Applications, 2011 University of Tennessee, Knoxville

#### Explicit Lp-Norm Estimates Of Infinitely Divisible Random Vectors In Hilbert Spaces With Applications, Matthew D Turner

*Doctoral Dissertations*

I give explicit estimates of the Lp-norm of a mean zero infinitely divisible random vector taking values in a Hilbert space in terms of a certain mixture of the L2- and Lp-norms of the Levy measure. Using decoupling inequalities, the stochastic integral driven by an infinitely divisible random measure is defined. As a first application utilizing the Lp-norm estimates, computation of Ito Isomorphisms for different types of stochastic integrals are given. As a second application, I consider the discrete time signal-observation model in the presence of an alpha-stable noise environment. Formulation is given to compute the optimal linear estimate of ...

Discrete Geometric Homotopy Theory And Critical Values Of Metric Spaces, 2011 University of Tennessee, Knoxville

#### Discrete Geometric Homotopy Theory And Critical Values Of Metric Spaces, Leonard Duane Wilkins

*Doctoral Dissertations*

Building on the work of Conrad Plaut and Valera Berestovskii regarding uniform spaces and the covering spectrum of Christina Sormani and Guofang Wei developed for geodesic spaces, the author defines and develops discrete homotopy theory for metric spaces, which can be thought of as a discrete analog of classical path-homotopy and covering space theory. Given a metric space, X, this leads to the construction of a collection of covering spaces of X - and corresponding covering groups - parameterized by the positive real numbers, which we call the [epsilon]-covers and the [epsilon]-groups. These covers and groups evolve dynamically as the ...