Physical Sciences and Mathematics Commons^™

Distribution Of Holonomy About Closed Geodesics On Compact Hyperbolic 3-Manifolds, Lindsay Dever

Bryn Mawr College Dissertations and Theses

An important feature of compact hyperbolic 3-manifolds is their closed geodesics, which have both geometric and dynamical implications. These geodesics are parametrized by their length and holonomy, which describes the angle of rotation by parallel transport about the geodesic. First, we prove ambient prime geodesic theorems, which provide an asymptotic count of closed geodesics by their length and holonomy and imply e ective equidistribution of holonomy in shrinking intervals. These theorems result from a non-spherical Selberg's trace formula which relates spectral information to lengths and holonomies of closed geodesics. Then, we show that although holonomy is equidistributed, there is typically …

Field Station Weather Reports, E. Adee, M. Sittel

Kansas Agricultural Experiment Station Research Reports

This report includes the annual summary of precipitation from 2021 at the research locations represented in the 2022 field report and further details about the Kansas River Valley locations and the east central Kansas locations.

Weather Information For Tribune, D. Bond, J. Slattery

Kansas Agricultural Experiment Station Research Reports

Summary of 2021 weather for research conducted at the Tribune Kansas Agricultural Experiment Station field location.

Weather Information For Garden City, 2021, E. Russell

Kansas Agricultural Experiment Station Research Reports

Summary of 2021 weather for research conducted at the Garden City Kansas Agricultural Experiment Station field location.

2021 Fertilizer Weather Station Report, M. Sittel

Kansas Agricultural Experiment Station Research Reports

This report includes the annual summary of precipitation and temperatures from 2021 at the research locations represented in the 2022 fertilizer report.

Far-Red Photography For Measuring Plant Growth: A Novel Approach, Cole Webb, F. Mitchell Westmoreland, Bruce Bugbee, Xiaojun Qi

Techniques and Instruments

A critical part of agricultural studies is determining plant stress and growth rate. Modern computer vision provides a series of tools that can be applied to derive this data. In this paper, we will show our findings, analyze their accuracy, and define a system capable of deriving this data with near-human accuracy in a fraction of the time. Denoising techniques applicable to this system will be discussed, as will our discoveries and findings. Finally, suggestions for further research opportunities will be provided.

Measurement Of (Alpha, Neutron) Reactions And Development Of Analysis Tools With The Majorana Demonstrator, Tupendra Kumar Oli

Dissertations and Theses

Neutrinoless double-beta decay (0νββ) is a hypothetical nuclear transition which, if observed, would prove that neutrinos are Majorana particles. In addition, the decay rate could provide an effective neutrino mass scale. The decay violates lepton number conservation and could offer a potential path to explain the matter-antimatter asymmetry in the universe via leptogenesis. However, the experimental observation of this decay is very challenging and would require excellent energy resolution of detectors, low background levels, and high exposure. The MAJORANA DEMONSTRATOR experiment searches for this decay in 76Ge using P-type Point Contact (PPC) High Purity Germanium (HPGe) detectors. In addition, the …

Framework For The Evaluation Of Perturbations In The Systems Biology Landscape And Inter-Sample Similarity From Transcriptomic Datasets — A Digital Twin Perspective, Mariah Marie Hoffman

Dissertations and Theses

One approach to interrogating the complexities of human systems in their well-regulated and dysregulated states is through the use of digital twins. Digital twins are virtual representations of physical systems that are descriptive of an individual's state of health, an object fundamentally related to precision medicine. A key element for building a functional digital twin type for a disease or predicting the therapeutic efficacy of a potential treatment is harmonized, machine-parsable domain knowledge. Hypothesis-driven investigations are the gold standard for representing subsystems, but their results encompass a limited knowledge of the full biosystem. Multi-omics data is one rich source of …

Assessing The Effects Of Instream Large Wood On Floodplain Aquifer Recharge And Storage At Indian Creek, Kittitas County, Washington, Usa, Stephen Bartlett

All Master's Theses

Numerous stream restoration projects in the Yakima River Basin in Washington have placed large wood (LW) into tributary channels. One intended effect is to divert water onto floodplains to increase groundwater (GW) recharge and seasonal storage in shallow alluvial aquifers during spring high flows with the intention of releasing GW into streams during the drier summer months. Large wood was emplaced in the Indian Creek tributary of the Teanaway River in Kittitas County, Washington beginning in 2016. Potential changes in the groundwater recharge in the adjacent floodplain before and after the LW installation were investigated through stratigraphic analysis, stream-flow modeling, …

Assessing The Mechanics Of Two Earthquake Clusters In The Basin And Range Province, Jamie Hansen

All Master's Theses

The seismicity in the Basin and Range Province of the western United States often manifests as clusters of earthquakes occurring over brief windows of time, lasting from months to years. Two different earthquake clusters occurring between 2014 and 2018, near Challis, Idaho and northwestern Nevada, were assessed in this study. The seismic activity in the southeastern section of the Challis cluster began with a M5.2 earthquake that was likely the main-shock earthquake in an aftershock sequence. The northwestern section of the Challis cluster does have several potential candidates for a main-shock earthquake, but none have been identified as a start …

Recovery Time, Biomass Characteristics And Recovery Mechanisms Of Seagrass Following Simulated Grazing, Caitlyn O'Dea, Paul Lavery, Chanelle Webster, Kathryn Mcmahon

Research Datasets

The database compiles data published on seagrass recovery time, biomass characteristics, and recovery mechanisms following simulated grazing disturbance experiment in the Swan Canning Estuary, Western Australia. Observations of swans in the vicinity is also included.

Seagrass Species Data Occurrence Recorded In Indonesia's Water, Susi Rahmawati, Udhi Hernawan, Kathryn M. Mcmahon

Research Datasets

This is the dataset of seagrass species occurrence compiled for the research project, titled “Prioritizing areas in Indonesia to conserve and enhance seagrass ecosystem functions under a changing climate”, funded by the 2021/2022 ANU Indonesia Project Research Grants.

Porewater Salinity Influences Germination Of Ruppia Polycarpa In Variable Estuarine Habitats, Chanelle Webster

Research Datasets

Porewater salinity at different depth intervals during different months. Seed, germling and seedling density data in two estuaries and during different months. Seed germination, seedling establishment and growth under experimental conditions.

Privacy Concerns With Using Public Data For Suicide Risk Prediction Algorithms: A Public Opinion Survey Of Contextual Appropriateness, Michael Zimmer, Sarah Logan

Computer Science Faculty Research and Publications

Purpose

Existing algorithms for predicting suicide risk rely solely on data from electronic health records, but such models could be improved through the incorporation of publicly available socioeconomic data – such as financial, legal, life event and sociodemographic data. The purpose of this study is to understand the complex ethical and privacy implications of incorporating sociodemographic data within the health context. This paper presents results from a survey exploring what the general public’s knowledge and concerns are about such publicly available data and the appropriateness of using it in suicide risk prediction algorithms.

Design/methodology/approach

A survey was developed to measure …

Accelerating Spatial Autocorrelation Computation With Parallelization, Vectorization And Memory Access Optimization, Anmol Paudel, Satish Puri

Computer Science Faculty Research and Publications

No abstract provided.

Sediment Survey: Yr080225, Station 3953, Clay Bank, York River Virginia, Grace M. Massey, Patrick J. Dickhudt, Carl T. Friedrichs

Data

This dataset consists of sediment properties including grain size distribution, percent moisture, percent organic matter, sediment bed erodibility, as well as (in most cases) x-ray images of the sediment structure. Most samples were taken in support of an Acoustic Doppler Velocimeter (ADV) tripod deployed in nearby location.

Tower Deployment: Yr130509 To Yr130620, Adv, Clay Bank, York River Virginia, Grace M. Massey, Kelsey A. Fall, Carl T. Friedrichs

Data

Dataset consists of data collected during a tower deployment of four Nortek Vector ADV sensors which were mounted at different depths in the water column to monitor suspended sediment concentrations and sizes. Conductivity and temperature were also monitored at corresponding depths.

Tower Deployment: Yr160531 To Yr160727, Adv, Clay Bank, York River Virginia, Grace M. Massey, Kelsey A. Fall, Carl T. Friedrichs

Data

Dataset consists of data collected during a tower deployment of four Nortek Vector ADV sensors which were mounted at different depths in the water column to monitor suspended sediment concentrations and sizes. Conductivity and temperature were also monitored at corresponding depths.

Tower Deployment: Yr141201 To Yr150122, Light Sensor, Clay Bank, York River Virginia, Grace M. Massey, Kelsey A. Fall, Carl T. Friedrichs

Data

Dataset consists of data collected during a tower deployment of multiple ONSET light sensors at varying depths to monitor light intensity and temperature.

Tripod Deployment: Yr160406 To Yr160420, Pc-Adp And Lisst, Clay Bank, York River Virginia, Grace M. Massey, Carl T. Friedrichs

Data

Dataset consists of burst data collected as part of a tripod deployment. The tripod included the following instruments: Pulse-coherent Acoustic Doppler Profiler (PCADP), Sequoia LISST, HOBO.

Exploration Of Light-Driven, Zirconium Catalyzed Hydrophosphination And Progress Towards Asymmetric Hydrophosphination, Bryan Teixeira Novas

Graduate College Dissertations and Theses

Direct irradiation of UV or visible light on zirconium catalyzed hydrophosphination reactions have shown to improve relative reaction rate and unlock new reactivity in contrast to reactions run in ambient light or the exclusion of light. The fist compound observed to receive this benefit was a triamidoamine-supported zirconium complex abbreviated (N3N)Zr that has been extensively studied by our group. UV-vis spectroscopy and TD-DFT calculations of early experiments revealed the nature of this improved reactivity being the population of an excited state that exhibits significant Zr–P σ* character in the active catalyst upon photon absorbance. This nd charge transfer elongates the …

Active Learning Augmented Folded Gaussian Model For Anomaly Detection In Smart Transportation, Venkata Praveen Kumar Madhavarapu, Prithwiraj Roy, Shameek Bhattacharjee, Sajal K. Das

Computer Science Faculty Research & Creative Works

Smart transportation networks have become instrumental in smart city applications with the potential to enhance road safety, improve the traffic management system and driving experience. A Traffic Message Channel (TMC) is an IoT device that records the data collected from the vehicles and forwards it to the Roadside Units (RSUs). This data is further processed and shared with the vehicles to inquire the fastest route and incidents that can cause significant delays. The failure of the TMC sensors can have adverse effects on the transportation network. In this paper, we propose a Gaussian distribution-based trust scoring model to identify anomalous …

Efficient Numerical Optimization For Parallel Dynamic Optimal Power Flow Simulation Using Network Geometry, Rylee Sundermann

Electronic Theses and Dissertations

In this work, we present a parallel method for accelerating the multi-period dynamic optimal power flow (DOPF). Our approach involves a distributed-memory parallelization of DOPF time-steps, use of a newly developed parallel primal-dual interior point method, and an iterative Krylov subspace linear solver with a block-Jacobi preconditioning scheme. The parallel primal-dual interior point method has been implemented and distributed in the open-source PETSc library and is currently available. We present the formulation of the DOPF problem, the developed primal dual interior point method solver, the parallel implementation, and results on various multi-core machines. We demonstrate the effectiveness our proposed block-Jacobi …

Combining Soil Health And Fertility Measurements To Improve The Accuracy Of Predicting Corn Grain Yield Responses To P And K Fertilization, Benjamin Groebner

Electronic Theses and Dissertations

Researchers have pointed to changes in climate and land management practices to justify the need to reevaluate the accuracy of current South Dakota (SD) corn (Zea mays L.) P and K fertilizer recommendations. Also, an increase in soil health understanding has created the potential for soil health measurements to be used to improve the accuracy of these recommendations. The objectives for this study were to 1) evaluate the current P and K critical values and 2) determine the effect of including soil health indicators on improving fertilizer recommendation accuracy. This project was conducted throughout central and eastern SD from 2019-2021 …

Comparative Investigation Of Structure And Operating Parameters On The Performance And Reaction Dynamic Of Co Conversion On Silica Aerogel And Fumed-Silica-Supported Pd Catalysts, Rola Mohammad Al Soubaihi, Khaled M. Saoud, Joydeep Dutta

VCUarts Qatar Faculty Research

The catalyst morphology, metal-support interaction, and reaction conditions greatly influence the catalytic performance and reaction dynamics. Similarly, the dispersion of the metal within the support plays a crucial role in the thermal stability and sintering of the catalyst. Furthermore, temperature-dependent conversion hysteresis is well-known to occur during ignition and extinction of exothermic CO oxidation over supported Pd catalysts due to the variation of CO adsorption on the surface or bulk oxidation of Pd and the ability of the catalyst to regenerate the active sites. Herein, the catalytic performance and the hysteresis behavior of mesoporous silica aerogel supported Pd (Pd/a-SiO2), and …

Characterization Of Nanoparticles Using Inductively-Coupled Plasma Mass Spectrometry, Jabez D. Campbell

MSU Graduate Theses

Nanomaterials are a relatively new class of materials that have many applications which span a wide host of fields from medical products to consumer products. The possible compositions and forms of nanomaterials are just as varied as the applications. Therefore, a versatile characterization method is needed for researchers and regulators alike to ensure nanomaterials are properly used. Single Particle Inductively Coupled Plasma Mass Spectrometry (SP-ICP-MS) is a functional method that could fill the characterization need in the nanomaterial research field. Using data from both SP-ICP-MS tests and data from literature established characterization methods, the viability of making SP-ICP-MS the standard …

Biking In Indianapolis: An Ethnographic Analysis Of Obstacles And Solutions, Emory Lietz

Undergraduate Honors Thesis Collection

Indiana is known as the ""Crossroads of America"" for its historic investment in vehicle infrastructure. This focus on automobiles has shaped Indianapolis's urban landscape, to the dismay of many cyclists. Based on semi-structured interviews with a range of stakeholders in the Indianapolis cycling community, including urban planners, bike commuters, IndyGo employees, city government officials, and bike advocates, this project identifies and evaluates the current barriers that prevent Indianapolis residents from riding their bikes. These obstacles, which include infrastructural, safety, and social factors, make it more difficult than it ought to be to bike in Indy.

For my thesis project, I …

Review Of Current Reactive Force Field Potentials For Use In Simulating The Atomic Layer Deposition Of Alumina On Aluminum, Devon T. Romine

MSU Graduate Theses

Alumina has recently garnered quite a bit of attention for use as a tunnel barrier in Josephson tunnel junctions. The quality of the metal oxide layer in the Josephson tunnel junction is a key factor in its effectiveness. To optimize the deposition method of alumina, we need a deep understanding of the large-scale surface interactions that cannot be reached using ab initio molecular dynamics. In this study, I have compared two existing reactive force field (ReaxFF) parameters to determine their abilities to model the atomic layer deposition (ALD) of alumina on an aluminum surface. ReaxFF molecular dynamics was chosen because …

Bat Mortality At Ontario Wind Farms Quantified And Compared Using Four Candidate Estimator Equations, Bethany G. Thurber, Catherine B. Jardine, J. Ryan Zimmerling

Human–Wildlife Interactions

Wind farm development is expanding globally. While wind energy is a low-cost option for new electricity supply, the impacts to wildlife populations, including bats (Chiroptera), are of ecological concern. To quantify these impacts, scientists have developed estimator equations to estimate bat mortality, which vary in assumptions related to correction factors. We compared the results of 4 estimators applied to post-construction monitoring data from Ontario, Canada, wind farms to evaluate the effects of field methods and correction factors on estimator consistency. To conduct our study, we obtained data from 21 wind farms between 2011 and 2017 for a total of 26 …

Stakeholder Knowledge And Perceptions Of Free-Roaming Equids And Their Management At A Western U.S. Land-Grant University, Hollee S. Wood, S. Nicole Frey, Terry A. Messmer

Human–Wildlife Interactions

The horse (Equus ferus caballus), originally native to North America, became extinct on the continent approximately 10,000 years ago. Horses that migrated from North America to Eurasia across the Bering Strait continued to evolve and were domesticated along with burros (E. asinus). Both species were then transported to the Americas where they were intentionally released or escaped into the wild, forming feral herds. The Wild Free-Roaming Horses and Burros Act of 1971 (WFRHBA) provided federal oversight and protection for feral horses and burros (hereafter, free-roaming equids) that inhabited designated areas on public lands in the western …