Physical Sciences and Mathematics Commons^™

Gis Data: Chesterfield County And Cities Of Colonial Heights, Petersburg, And Richmond Shoreline Inventory Report, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Karen Duhring, Kallie Brown, Jessica Hendricks, David Weiss, Carl Hershner

Data

The 2017 Inventory for Chesterfield County and the Cities of Colonial Heights, Petersburg, and Richmond was generated using on-screen, digitizing techniques in ArcGIS® -ArcMap v10.4.1while viewing conditions observed in Bing high resolution oblique imagery, Google Earth, and2013imagery from the Virginia Base Mapping Program (VBMP).Four GIS shapefiles are developed. The first describes land use and bank conditions (Chesterfield_lubc_2017). The second portrays the presence of beaches (Chesterfield_beaches_2017). The third reports shoreline structures that are described as arcs or lines(e.g. riprap)(Chesterfield_sstru_2017). The final shapefile includes all structures that are represented as points (e.g. piers)(Chesterfield_astru_2017).The metadata file accompanies the shapefiles and defines attribute accuracy, …

Petrophysical Characterization Of The Jo Mill Submarine Fan Complex, Spraberry Trend, Midland Basin, Texas, Benjamin Frederic Rogers

Earth & Environmental Sciences Theses

Understanding and quantifying reservoir quality require a new suite of knowledge when approaching the nanometer sized pore-networks of unconventional reservoirs. These low porosity and permeability reservoirs have been produced in major basins all over the world, but characterizing their pore networks has been fairly recent in its application. One of the challenges of quantifying reservoir characteristics like porosity, pore size distribution, permeability, and tortuosity in unconventional reservoirs is the abundance of their nanometer-sized pore systems. Pore systems in these rocks tend to behave differently and with less predictability than the conventional reservoir. The Spraberry Formation in the Midland Basin of …

Petrophysical Properties Of The Woodford Formation In The Ardmore Basin In Oklahoma, U.S.A, Benjamin Ryan

Earth & Environmental Sciences Theses

A prolific source rock in Oklahoma, the Woodford Shale has sourced petroleum reservoirs for millions of years and produced oil and gas since 1939. Not until the shale boom of the early 2000’s was the full potential of the Woodford Shale, as a reservoir, realized. The focus of this research is to characterize three (the main ones) of the four petro-physically distinct zones within the Ardmore Woodford Shale in order to investigate the ideal zone for hydrocarbon extraction. The Woodford Shale is composed of tight, organic-rich, interbedded shale and chert beds deposited along a marine slope. Due to its tight …

An Integrated Evaluation Of Potential Petroleum Systems Of The Southern Carnarvon Basin, Western Australia, James E. Hobbs

Earth & Environmental Sciences Theses

The Southern Carnarvon Basin is an elongate basin in Western Australia covering approximately 200,000km2. There are two main regions: a western platform (Gascoyne Platform) with a Cambrian to Lower Carboniferous succession that has mostly flat-lying Cretaceous-Cenozoic cover; and an eastern set of half-grabens (Merlinleigh Sub-basin) forming a single mid-Carboniferous – Permian depocenter, now separated by a gneissic basement of the Carrandibby Inlier, which is considered to be a part of the Merlinleigh Sub-basin. The two regions have little in common except for sharing a Devonian to Lower Carboniferous succession and both have predominantly Paleozoic infill. Tectonics processes recorded in the …

Global Marine Carbon Export Production During Eocene Hyperthermal Events, Angela Ruth Lewis

Earth & Environmental Sciences Theses

Early Eocene hyperthermal events can be an analog for global warming. Pelagic marine barite in deep sea sediment is a proxy for marine export production of organic matter into the deep ocean. Pelagic marine barite accumulation rates (BAR) were reconstructed over the Paleocene – Eocene Thermal Maximum (PETM; ~55.5 million years ago), Eocene Thermal Maximum 2 (ETM2; ~53.7 Ma) and ETM3 (~52.4 Ma) from ODP Sites 1209, 1215 and 1263. Northern Atlantic samples (with high detrital content) were acid digested and analyzed to reconstruct biogenic Ba (Ba/Al, Ba/Ti) and compare with elemental data from high resolution X-ray fluorescence. This data …

Nanopetrophysics Characterization Of The Mancos Shale Formation In The San Juan Basin Of Northwestern New Mexico, U.S.A., Richard Kalteyer

Earth & Environmental Sciences Theses

The Mancos Shale of the San Juan Basin is no stranger to the drilling of oil and gas, but traditional exploration within the region has predominantly been limited to the use of conventional vertical wells. Due to the recent advances in drilling and completion technologies, a large focus of oil and gas exploration has shifted towards the development of unconventional reservoirs. Because of these significant breakthroughs, it comes as no surprise that an increased interest in further developing the Mancos Shale has taken place. However, like most unconventional plays, low porosity and extremely low permeability characterize the Mancos Shale. These …

Algorithms For Building Compact Representatives And Processing Ranking Queries, Abolfazl Asudeh Naee

Computer Science and Engineering Dissertations

Ranked retrieval model has rapidly replaced the traditional Boolean retrieval model as the de facto way for query processing when a large portion of (big) data matches a given query. Returning all the query results in these cases is not efficient nor informative. Unlike the Boolean retrieval model, the ranked retrieval model orders the matching tuples according to an often proprietary ranking function and returns the top-k of them. In this dissertation, we study ranked retrieval model and propose exact and approximate algorithms for (i) building representatives for fast query processing, and (ii) online processing of ranking queries. We study …

Studies In Liquid And Ion Chromatography, Akinde Florence Kadjo

Chemistry & Biochemistry Dissertations

Height- and area-based quantitation approaches reduce two-dimensional data to a single value. For a calibration set, there is a single height- or area-based quantitation equation. We introduce a new quantitation method; a Width based method that consists of using the width of a peak (Wh), at any height h, (a fixed height, not a fixed fraction of the peak maximum), leading to any number of calibration curves. This particularity of width-based quantitation (WBQ) allows the quantitation of peaks over very large scales, making the quantitation of truncated peaks possible. We showed that WBQ can offer superior overall performance (lower root …

Development Of Qualitative And Quantitative Applications In Energy Industry Using Gas Chromatography- Vacuum Ultraviolet Spectroscopy, Ling Bai

Chemistry & Biochemistry Dissertations

Characterization and evaluation of hydrocarbon assets, including content of linear and branched alkanes, cycloalkanes, aromatics, olefins, and naphthenes, among others, during production and distribution are very crucial in oil and gas industries. Quantification and qualification of bulk composition of hydrocarbon groups in complex samples like gasoline, diesel, and other high value refinery products is very challenging. Gas chromatography (GC) is the most popular technique among the petrochemical industry and many of the EPA and ASTM methods have been established based on GC for analyzing hydrocarbons in complex mixtures. Though there are many methods available, there are still limitations on the …

Synthetic And Mechanistic Investigations Of Ruthenium Alkylidene-Catalyzed Alkene-Silane Cross-Coupling Reactions, Apparao Bokka

Chemistry & Biochemistry Dissertations

Grubbs-type ruthenium alkylidene-catalyzed intramolecular alkene hydrosilylation and intermolecular dehydrogenative silylation and hydrosilylation of vinylarenes have been achieved with high regio- and stereoselectivity. Mechanistic details to support the initial activation of ruthenium complex have been revealed. Chapter 1 describes the uses of organosilanes in various fields. Development of transition metal-catalyzed hydrosilylations, alkene/alkyne metathesis activities of Grubbs-type ruthenium alkylidenes and non-metathetical activities including hydrosilylation of alkynes are discussed. The development of intramolecular hydrosilylation of alkenylsilyl ethers through reaction discovery and optimization is discussed. The strategy developed has been tested successfully on a variety of substrates with varying steric and electronic properties. A …

Enantioselective Synthesis Of An Anticancer Ruthenium Polypyridyl Complex (Rpc) And Influence Of Chiral Selectivity On Dna Photocleavage, Shomita Ferdous

Chemistry & Biochemistry Theses

Ruthenium polypyridyl complexes (RPCs) represent a promising therapeiutic class of drugs for transition-metal based anticancer drug development. The complex [(phen)2Ru(tatpp)Ru(phen)2] (44+) is a RPC which has shown success in both cell free and cellular assay. Unlike many other RPCs, 44+ can selectively kill malignant cells without light irradiation from external sources. This binuclear complex 44+ is a DNA intercalator containing redox-active ligand tatpp (9,11,20,22-Tetraaza tetrapyrido[3,2-a:2'3'-c:3'',2''- 1:2''',3''']-pentacene) which cleaves DNA in presence of a mild reducing agent, i.e. glutathione (GSH).1,2,3 The cellular assay (MTT assay) with different types of malignant cells has also established this as an equally potent cytotoxic agent …

Catch The King Tide 2017 Data: Portsmouth, Virginia, Jon Derek Loftis

Data

"Catch the King" was a citizen science GPS data collection effort centered in Hampton Roads, VA, that sought to map the King Tide's maximum inundation extents with the goal of validating and improving predictive models for future forecasting of increasingly pervasive "nuisance" flooding. GPS data points were collected by volunteers to effectively breadcrumb/trace the high water line by pressing the 'Save Data' button in the Sea Level Rise App every few steps along the water's edge during the high tide on the morning of Nov. 5th, 2017. Response from the event's dedicated volunteers, fueled by the local media partners' coverage …

Catch The King Tide 2017: All King Tide Data, Jon Derek Loftis

Data

"Catch the King" was a citizen science GPS data collection effort centered in Hampton Roads, VA, that sought to map the King Tide's maximum inundation extents with the goal of validating and improving predictive models for future forecasting of increasingly pervasive "nuisance" flooding. GPS data points were collected by volunteers to effectively breadcrumb/trace the high water line by pressing the 'Save Data' button in the Sea Level Rise App every few steps along the water's edge during the high tide on the morning of Nov. 5th, 2017. Response from the event's dedicated volunteers, fueled by the local media partners' coverage …

Catch The King Tide 2017 Data: Hampton, Virginia, Jon Derek Loftis

Data

"Catch the King" was a citizen science GPS data collection effort centered in Hampton Roads, VA, that sought to map the King Tide's maximum inundation extents with the goal of validating and improving predictive models for future forecasting of increasingly pervasive "nuisance" flooding. GPS data points were collected by volunteers to effectively breadcrumb/trace the high water line by pressing the 'Save Data' button in the Sea Level Rise App every few steps along the water's edge during the high tide on the morning of Nov. 5th, 2017. Response from the event's dedicated volunteers, fueled by the local media partners' coverage …

A Deep Chandra Study Of Galactic Type Ia Supernova Remnant G299.2-2.9, Seth Aaron Post

Physics Dissertations

In this thesis we perform a comprehensive analysis of Galactic Type Ia supernova remnant G299.2-2.9. For this study we analyze our deep 628 ks Chandra observation data of G299.2-2.9. G299.2-2.9 has a complex multiple shell-like structure consisting of a bright inner shell, with enhancements ("knots") in the northeastern portion of the shell, and a fainter diffuse outer shell. Our spectral analysis of the outer shells of G299.2-2.9 shows that the bright inner and faint outer shells appear to be emission features from the swept-up ambient medium (by the supernova blast wave) whose density is relatively uniform along the distance from …

Estimating The Contribution Of Dynamical Ejecta In The Kilonova Associated With Gw170817, B. P. Abbott, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Afrough, B. Agarwal, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, G. Allen, A. Allocca, P. A. Altin, A. Amato, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. V. Angelova, S. Antier

Physics and Astronomy Faculty Publications and Presentations

The source of the gravitational-wave (GW) signal GW170817, very likely a binary neutron star merger, was also observed electromagnetically, providing the first multi-messenger observations of this type. The two-week-long electromagnetic (EM) counterpart had a signature indicative of an r-process-induced optical transient known as a kilonova. This Letter examines how the mass of the dynamical ejecta can be estimated without a direct electromagnetic observation of the kilonova, using GW measurements and a phenomenological model calibrated to numerical simulations of mergers with dynamical ejecta. Specifically, we apply the model to the binary masses inferred from the GW measurements, and use the resulting …

The 13th Data Release Of The Sloan Digital Sky Survey: First Spectroscopic Data From The Sdss-Iv Survey Mapping Nearby Galaxies At Apache Point Observatory, Franco D. Albareti, Carlos Allende Prieto, Andres Almeida, Friedrich Anders, Scott Anderson, Brett H. Andrews, Alfonso Aragón-Salamanca, Maria Argudo-Fernández, Eric Armengaud, Eric Aubourg, Vladimir Avila-Reese, Carles Badenes, Stephen Bailey, Beatriz Barbuy, Kat Barger, Jorge Barrera-Ballesteros, Curtis Bartosz, Sarbani Basu, Dominic Bates, Giuseppina Battaglia, Falk Baumgarten, Julien Baur, Julian Bautista, Timothy C. Beers, Francesco Belfiore, Matthew Bershady, Sara Bertran De Lis, Jonathan C. Bird, Dmitry Bizyaev, Guillermo A. Blanc

Physics and Astronomy Faculty Publications and Presentations

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in 2014 July. It pursues three core programs: the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2), Mapping Nearby Galaxies at APO (MaNGA), and the Extended Baryon Oscillation Spectroscopic Survey (eBOSS). As well as its core program, eBOSS contains two major subprograms: the Time Domain Spectroscopic Survey (TDSS) and the SPectroscopic IDentification of ERosita Sources (SPIDERS). This paper describes the first data release from SDSS-IV, Data Release 13 (DR13). DR13 makes publicly available the first 1390 spatially resolved integral field unit observations of nearby galaxies from MaNGA. It …

Search For High-Energy Neutrinos From Binary Neutron Star Merger Gw170817 With Antares Icecube And The Pierre Auger Observatory, A. Albert, M. André, M. Anghinolfi, M. Ardid, J. J. Aubert, J. Aublin, T. Avgitas, B. Baret, J. Barrios-Martí, S. Basa, B. Belhorma, V. Bertin, S. Biagi, R. Bormuth, S. Bourret, M. C. Bouwhuis, H. Bró¢Nzaåÿ, R. Bruijn, J. Brunner, J. Busto, A. Capone, L. Caramete, J. Carr, S. Celli, R. Cherkaoui El Moursli, T. Chiarusi, M. Circella, J. A.B. Coelho, A. Coleiro, R. Coniglione

Physics and Astronomy Faculty Publications and Presentations

The Advanced LIGO and Advanced Virgo observatories recently discovered gravitational waves from a binary neutron star inspiral. A short gamma-ray burst (GRB) that followed the merger of this binary was also recorded by the Fermi Gamma-ray Burst Monitor (Fermi-GBM), and the Anti-Coincidence Shield for the Spectrometer for the International Gamma-Ray Astrophysics Laboratory (INTEGRAL), indicating particle acceleration by the source. The precise location of the event was determined by optical detections of emission following the merger. We searched for high-energy neutrinos from the merger in the GeV-EeV energy range using the Antares, IceCube, and Pierre Auger Observatories. No neutrinos directionally coincident …

Re–Os Isotope Geochronology Of The Shangbao Pyrite–Flourite Deposit In Southeastern Hunan, South China: Evidence For Multiple Mineralization Events And The Role Of Crust–Mantle Interaction In Polymetallic Deposits, Cheng Cheng Huang, Hai Feng Guo, Jie Li, Qiang Wang, Chunfu Zhang, Derek Wyman, Gong Jian Tang

Geosciences Faculty Publications

In South China, both crustal reworking and crust–mantle interaction were important geological processes during the Paleozoic and Mesozoic eras. However, the relationships between these two processes and metal mineralization are still unknown. Here we report rhenium and osmium isotopic data for pyrite grains from a pyrite deposit associated with a granite intrusion in the Shangbao area, southeastern Hunan Province (South China). Two pyrite samples, both containing many euhedral pyrite grains, were collected from the same locality, but the samples yield distinct ages. Six euhedral pyrite grains from one sample yield an isochronal age of 279 ± 12 Ma, with an …

High-Pressure Granulite Facies Overprinting During The Exhumation Of Eclogites In The Bangong-Nujiang Suture Zone, Central Tibet: Link To Flat-Slab Subduction, Xiu Zheng Zhang, Qiang Wang, Yong Sheng Dong, Chunfu Zhang, Qing Yun Li, Xiao Ping Xia, Wang Xu

Geosciences Faculty Publications

The geometric transformation of a descending plate, such as from steep to flat subduction in response to a change from normal to overthickened oceanic crust during subduction, is a common and important geological process at modern or fossil convergent margins. However, the links between this process and the metamorphic evolution of the exhumation of oceanic (ultra)high-pressure eclogites are poorly understood. Here we report detailed petrological, mineralogical, phase equilibria, and secondary ion mass spectrometry zircon and rutile U-Pb age data for the Dong Co eclogites at the western segment of the Bangong-Nujiang suture zone, central Tibet. Our data reveal that the …

2017 December - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Monthly Report

No abstract provided.

Applying The Diffusion Of Innovation Theory To Characterize Stem Faculty Attending Professional Development Programs, Dihua Xue

Department of Chemistry: Dissertations, Theses, and Student Research

Instructional practices in undergraduate STEM courses have been static for decades, with a primary focus on lecture. Over the last twenty years, extensive research on how people learn science has led to the development of innovative instructional strategies that have been shown to enhance students’ learning and interest. These in turn have led to calls to reform instructional practices in STEM fields at the undergraduate level. However, evidence shows that these research-based instructional strategies have largely not been incorporated into classes. The promotion of these new strategies has been mostly conducted through workshops. Although numerous studies have evaluated the impact …

Developing Functionalized Peroxide Precursors For The Synthesis Of Cyclic And Spirocyclic Ethers, Anna J. Diepenbrock

Department of Chemistry: Dissertations, Theses, and Student Research

There is increasing interest in the development of methods for the synthesis of oxetanes and spirocyclic oxetanes, a class of molecules of interest to chemists as they synthesize libraries of possible drug target scaffolds with tunable physiochemical and biological properties.^1,2 Although most ethers are prepared through reaction of nucleophilic oxygen with electrophilic carbon, this work explores new reagents and routes for the synthesis of spirocyclic oxetanes based upon an application of "umpolung" or polarity reversal involving attack of nucleophilic carbon on the electrophilic oxygen of a peroxide (Scheme 1). In this work, a 2-carbon peroxide synthon for reverse etherification …

Angle-Resolved Observation Of X-Ray Second Harmonic Generation In Diamond, Björn Senfftleben

Department of Physics and Astronomy: Dissertations, Theses, and Student Research

This thesis reports angularly-resolved observation of X-ray second harmonic generation (XSHG) in diamond at several phase-matching geometries. The XSHG signal was produced by ultra-short, highly intense X-ray pulses with a photon energy of 9.831 keV generated by a free-electron laser. In some geometries for high pulse energies more than 10 second harmonic photons per pulse were generated.

Different phase-matched geometries were used for XSHG to investigate the angular dependence of the efficiency of the process. Furthermore, for each phase-matching condition, the quadratic dependence for second harmonic generation at each geometry was verified and the crystal rocking curves were measured. The …

Design And Construction Of A High-Current Femtosecond Gas-Phase Electron Diffraction Setup, Omid Zandi

Department of Physics and Astronomy: Dissertations, Theses, and Student Research

We designed and constructed a state-of-the-art high current ultrafast gas electron diffraction experimental setup, which resolved two main challenges that constraint temporal resolution in previous setups. These aforementioned bottlenecks were: the space charge effect due to the Coulomb expansion, and the velocity mismatch between the sub-relativistic electrons (probe) and the exciting laser pulse (pump). In our setup, the problem of space charge effect was ameliorated by compressing 90 keV photo-emitted electron pulses using a radio-frequency electric field. The compression allowed us to increase the beam current by almost two orders of magnitude higher than previously reported. We developed a laser-activated …

A Measurement Of The Wγ Cross Section At √S = 8 Tev In Pp Collisions With The Cms Detector, Ekaterina Avdeeva

Department of Physics and Astronomy: Dissertations, Theses, and Student Research

A measurement of cross section of the Wγ → lνγ production in proton-proton collisions using 19.6 fb − 1 of LHC data collected by CMS detector at the center- √ of-mass collision energy of s = 8 TeV is reported. The W bosons are identified in their electron and muon decay modes. The process of Wγ production in the Standard Model (SM) involves a pure gauge boson coupling, a WWγ vertex, which allows one to test the electroweak sector of the SM in a unique way not achievable by studies of other processes. In addition to the total cross section, …

An Unmanned Aerial System For Prescribed Fires, Evan M. Beachly

Department of Computer Science and Engineering: Dissertations, Theses, and Student Research

Prescribed fires can lessen wildfire severity and control invasive species, but some terrains may be difficult, dangerous, or costly to burn with existing tools. This thesis presents the design of an unmanned aerial system that can ignite prescribed fires from the air, with less cost and risk than with aerial ignition from a manned aircraft. The prototype was evaluated in-lab and successfully used to ignite interior areas of two prescribed fires. Additionally, we introduce an approach that integrates a lightweight fire simulation to autonomously plan safe flight trajectories and suggest effective fire lines. Both components are unique in that they …

Design And Implementation Of A Stand-Alone Tool For Metabolic Simulations, Milad Ghiasi Rad

Department of Computer Science and Engineering: Dissertations, Theses, and Student Research

In this thesis, we present the design and implementation of a stand-alone tool for metabolic simulations. This system is able to integrate custom-built SBML models along with external user’s input information and produces the estimation of any reactants participating in the chain of the reactions in the provided model, e.g., ATP, Glucose, Insulin, for the given duration using numerical analysis and simulations. This tool offers the food intake arguments in the calculations to consider the personalized metabolic characteristics in the simulations. The tool has also been generalized to take into consideration of temporal genomic information and be flexible for simulation …

Exterior Giant Planet Effects On Terrestrial Architecture, Anna Corinne Childs

UNLV Theses, Dissertations, Professional Papers, and Capstones

Terrestrial planet formation is a chaotic and violent process which is not fully understood. Prior to Kepler, Solar System observations were the basis for planet formation models. How- ever, Kepler observations have shown that exoplanet systems are very different from our solar system, thus requiring a more complete planet formation model. With advancements in com- putational ability, N-body integrators, and collision models, we can explore planet formation by experimenting with simulations in different parameter space. Our Solar System has shown us that exterior giant planets can play a vital role in the shaping of the final terrestrial planet system. Our …

The Electrochemical Deposition Of Samarium And Europium Dissolved In Ionic Liquid Solvent, Bea Martinez

UNLV Theses, Dissertations, Professional Papers, and Capstones

Rare-earth elements include the lanthanide series in the periodic table with the addition of scandium and yttrium. China produces approximately 95% of the world’s rare-earths supply and is the largest consumer of the world’s rare earth supply. Domestic production of rare-earth metals is a priority in the US. The domestic demand for rare-earth elements is largely based on their use in electronic devices, catalytic converters, and more importantly defense applications. Therefore, China’s monopoly of rare-earth elements is viewed as a threat to national security. Although capital investments have resulted in an increase in domestic mining and refining of rare-earth materials, …