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Computational Modeling And Simulations Of Condition Deterioration To Enhance Asphalt Highway Pavement Design And Asset Management, Zul Fahmi Bin Mohamed Jaafar Jan 2019

Computational Modeling And Simulations Of Condition Deterioration To Enhance Asphalt Highway Pavement Design And Asset Management, Zul Fahmi Bin Mohamed Jaafar

Electronic Theses and Dissertations

A nation’s economy and prosperity depend on an efficient and safe transportation network for public mobility and freight transportation. A country’s road network is recognized as one of the largest public infrastructure assets. About 93 percent of 2.6 million miles of paved roads and highways in the United States (U.S.) are surfaced with asphalt. Longitudinal roughness, pavement cracking, potholes, and rutting are the major reasons for rehabilitation of asphalt roads. Billions of dollars are required annually for the maintenance and rehabilitation of road networks. If timely maintenance and rehabilitation are not performed, the pavement damages inflicted by heavy traffic repetitions …

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Evaluation Of Wireless Router Antennas And 3d-Printed Simulated Antenna Designs, Bibek Kattel Jan 2019

Evaluation Of Wireless Router Antennas And 3d-Printed Simulated Antenna Designs, Bibek Kattel

Electronic Theses and Dissertations

As the size of the electronics devices is decreasing the overall size of the antenna inside them is also decreasing. As the antenna size becomes smaller it is more difficult to manufacture them with the process of traditional manufacturing that uses the subtractive method to manufacture a structure. This is where additive manufacturing has an edge on traditional manufacturing. The use of this method to manufacture antennas has been discussed in this thesis. Five antennas from a wireless router are evaluated by modeling them in CST Microwave Studio and are modified so that they can be manufactured with 3D printing. …

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Hydrophobization Of Cellulose-Based Fibers For Packaging Applications With Alkyl Ketene Dimers (Akd) And Food-Grade Waxes Via Supercritical Impregnation With Carbon Dioxide – Experimental And Thermodynamic Modeling Approaches, Kolawole Adenekan Jan 2019

Hydrophobization Of Cellulose-Based Fibers For Packaging Applications With Alkyl Ketene Dimers (Akd) And Food-Grade Waxes Via Supercritical Impregnation With Carbon Dioxide – Experimental And Thermodynamic Modeling Approaches, Kolawole Adenekan

Electronic Theses and Dissertations

This modified material has applications in food packaging, where frequently water-repellant surfaces are required. This method is preferable to traditional coating methods because it sizes across the entire thickness of the substrate rather than just the surface and can be used for non-planar surfaces; uses significantly less material than traditional methods and will be an excellent technique for multilayered and intelligent coating.

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X-Ray Fluorescence Analysis Of Tuscaloosa Marine Shale Cuttings From Horizontally Drilled Wells, Xiaotian Wang Jan 2019

X-Ray Fluorescence Analysis Of Tuscaloosa Marine Shale Cuttings From Horizontally Drilled Wells, Xiaotian Wang

Electronic Theses and Dissertations

The Upper Cretaceous Tuscaloosa Marine Shale (TMS) is a gray to black fissile marine shale deposited at depth of between 10,000 and 20,000 ft near the ancient Gulf of Mexico. The TMS has been gradually developed as a hydrocarbon reservoir in the past several decades. But there are rare researches evaluating geochemical properties based on chemostratigraphy of the TMS. The objective of this research is to spatially evaluate geophysical properties and chemostratigraphy of the TMS, to characterize elemental changes along well paths and to evaluate the effect of basic sample clean on XRF results. The data available for this study …

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Optimizing The Performance Of Complex Engineering Systems Aided By Artificial Neural Networks, Khalil Qatu Jan 2019

Optimizing The Performance Of Complex Engineering Systems Aided By Artificial Neural Networks, Khalil Qatu

Electronic Theses and Dissertations

In the first problem Polyetherimide graphene nanoplatelets papers (PEIGNP) were tested with different graphene loadings varying from 0-97 weight percent (WT%). The resulting stress-strain curves were utilized to develop two ANN models. Stress-controlled and strain-controlled models. Both models shoan excellent correlation to the experimental. Several Mechanical properties were calculated from the predicted stress-strain curves namely; toughness maximum strength maximum strain and maximum tangent modulus. Both models captured the same overall behavior of the PEIGNP composite. However the strain-controlled model was found to predict lower stress than the stress-controlled model. Finally a Graphical User Interface (GUI) was developed to aid in …

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Analytical Modeling And Life Cycle Assessment Of A Solar Powered Vapor Absorption Cooling System, Harold A. Walters Jan 2019

Analytical Modeling And Life Cycle Assessment Of A Solar Powered Vapor Absorption Cooling System, Harold A. Walters

Electronic Theses and Dissertations

Vapor absorption cooling systems (VACS) offer an environmentally friendly alternative to the standard vapor compression cooling systems (VCCS) for cooling homes, businesses, factories, and other buildings. VACS use low-grade thermal energy to achieve a cooling effect and require minimal electrical input for the liquid solution pump used for circulation within the system. The thermal energy which powers these systems can be provided through several means; one popular form is through the use of solar thermal collectors. This paper provides a process for determining the overall size and configuration of the VACS depending upon the operating conditions of selected components. A …

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Geographic Variations Of Sound Channel Axis In The Global Ocean, Mukunda Kumar Acharya Jan 2019

Geographic Variations Of Sound Channel Axis In The Global Ocean, Mukunda Kumar Acharya

Electronic Theses and Dissertations

Sound signals are used for imaging and communication in the ocean. Underwater sound speed has a minimum at a certain depth that forms a sound channel for long-range underwater sound propagation. The geographic variation of sound channel is crucial in uses of underwater sound in various environments including ocean acoustic tomography and monitoring of global warming. In this work, sound speed and depth of the channel axis in the global ocean are characterized for their variation with the latitude, longitude, and depth.

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Daily Metacognitive Questioning Sheets: Implementing Metacognitive Strategies In The Secondary Classroom, Shawna Sue Hill-Robinson Jan 2019

Daily Metacognitive Questioning Sheets: Implementing Metacognitive Strategies In The Secondary Classroom, Shawna Sue Hill-Robinson

Electronic Theses and Dissertations

This study investigated the possible impact that incorporating daily metacognitive questioning in a mathematics classroom could have on student achievement. The study integrated metacognition into the classroom through the daily use of metacognitive questioning sheets that were answered by students who participated in the research study. The study also explored patterns that emerged from the students’ individual responses on the metacognitive sheets using qualitative coding and analyses. Two classes of heterogeneously grouped high school dual-credit college algebra students were taught the same curriculum by the same teacher and given the same summative assessments during the study. One class received the …

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Leading Learners To Level Up In A High School Mathematics Classroom, Jennifer Carnes Wilson Jan 2019

Leading Learners To Level Up In A High School Mathematics Classroom, Jennifer Carnes Wilson

Electronic Theses and Dissertations

How often are teachers surprised to find out at the end of a learning episode that students have not actually learned? The first Mathematics Teaching Practice from NCTM’s Principles to Actions asserts that “effective teaching of mathematics establishes clear goals for the mathematics that students are learning, situates goals within learning progressions, and uses the goals to guide instructional decisions” (NCTM, 2014, p. 10). Unfortunately, many teachers struggle to establish clear goals to focus learning, and many students struggle to meet those goals. This research study considered how well students predict success on learning targets for an upcoming test when …

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X-Ray Crystal Structure Of Au36(Sph-Pch3)24 Nanomolecules, Vigneshraja Ganeshraj Jan 2019

X-Ray Crystal Structure Of Au36(Sph-Pch3)24 Nanomolecules, Vigneshraja Ganeshraj

Electronic Theses and Dissertations

Au36(SR)24 is one of the most comNanomolecules (NM) in gold NM field and crystal structures of Au36(SR)24 with different thiolate protecting ligand such as tert-butylbenzene thiol, thiophenol and cyclopentane thiol have been reported. It has been predicted that aromatic thiol protected Au36(SR)24 NM have same core structures like the other reported Au36(SR)24 NMs. Due to the steric and electronic conjugation effects the staples on the gold core exhibit minor changes in the bond length without affecting the gold core. By varying the Gold:Thiol ratio the NM size can be controlled. Herein, we report the synthesis, isolation and characterization of two …

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Care In The Workplace:The Employer’S Role In The Alleviation Of The Eldercare Problem, Joseph Michael Duda Jan 2019

Care In The Workplace:The Employer’S Role In The Alleviation Of The Eldercare Problem, Joseph Michael Duda

Electronic Theses and Dissertations

The Center for Disease Control has referred to the group of people, aged 18-35, who have an elderly dependent they care for (by which I mean physical, emotional, or mental assistance necessary for the elderly dependent’s continued living) and are entering the workforce as the “sandwich” generation. These people are at the age where they may be simultaneously raising a child and taking care of an elderly family member. It has been estimated that, as of 2006, 17% of the U.S. workforce belong to the sandwich generation. In addition to the sandwich generation, there are 44 million people in the …

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An Approach To Semi-Autonomous Indoor Drone System: Software Architecture And Integration Testing, Shobhan Singh Jan 2019

An Approach To Semi-Autonomous Indoor Drone System: Software Architecture And Integration Testing, Shobhan Singh

Electronic Theses and Dissertations

To address these problems, we establish a semi-autonomous functionality by removing the RC transmitter, and remotely connecting the Drone System to track status and executing user-based input commands. In order to resolve the limitation in hardware connections on the Flight Controller, we integrated the sonar sensor into a companion computer, from where the data is continuously fed to an embedded system through MAVLink (Micro Aerial Vehicle Link) network communication protocol. In this study, we also implemented a modular architecture which enables scalable integration of sensor modules into the Drone System to streamline the process of development, deployment, testing and debugging.

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Increasing Teacher Retention: An Applied Research Study On The Effects Of Mentoring And Culture In The Abc County School District, Jimmy Holland Weeks Jan 2019

Increasing Teacher Retention: An Applied Research Study On The Effects Of Mentoring And Culture In The Abc County School District, Jimmy Holland Weeks

Electronic Theses and Dissertations

This applied research study sought to improve the retention rate of beginning teachers through a teacher mentoring program. The need for the teacher retention rate to improve became evident as student achievement fell, new teacher training costs increased, and fewer new teachers entered the teaching profession. Using four elements in this study, mentoring, job-embedded coaching, individual growth plan, and culture development, the program sought to better support new teachers during the first few years of their careers. Surveys, evaluations, collaboration logs, and professional growth plans were used in the study. The findings revealed improvement in the teacher retention rate in …

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Development Of Cobalt And Iron Catalysts Bearing Rigid Polydentate Ligands For Proton Reduction And C-H Bond Oxidation, Lizhu Chen Jan 2019

Development Of Cobalt And Iron Catalysts Bearing Rigid Polydentate Ligands For Proton Reduction And C-H Bond Oxidation, Lizhu Chen

Electronic Theses and Dissertations

The demand for energy consumption has increased exponentially since the Industrial Revolution. The major source of this energy has been and continues to be fossil fuels. The depletion of fossil fuels and environmental concerns associated with their combustion has motivated us to develop a renewable energy alternative to meet future energy demands. Hydrogen is a clean energy alternative to fossil fuels, which can be generated from solar-driven water splitting. However, more efficient and inexpensive catalysts for the hydrogen evolution reaction (HER) are needed. In this context, hydrogen production has been investigated with a stable and highly reactive cobalt-based catalyst. While …

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Structural Controls And Depositional Environments Of The Glen Rose Subgroup In Pelahatchie Field In Rankin County, Mississippi, Chesney Petkovsek Jan 2019

Structural Controls And Depositional Environments Of The Glen Rose Subgroup In Pelahatchie Field In Rankin County, Mississippi, Chesney Petkovsek

Electronic Theses and Dissertations

Following Lion Oil’s drilling of the Sowell #1, Lower Cretaceous step-out drilling in Pelahatchie Field has led to the establishment of Mooringsport, Paluxy, Rodessa, Sligo, and Hosston oil and gas condensate production along the flanks and crest of a salt feature within Rankin County, Mississippi. Exploration of salt features has been intermittent throughout Mississippi, but has shifted from targeting pay zones along the crests of domal and piercement salt features in the 1940s, to targeting reserves along the flanks of these features in the 1970s. The dominant structural feature in Pelahatchie Field is an elongate north-south-trending salt ridge. Results of …

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Virtually There: A Phenomenological Study Of Secondary Students And Their Engagement With Virtual Reality Field Trips, Melissa Sonta Thomas Jan 2019

Virtually There: A Phenomenological Study Of Secondary Students And Their Engagement With Virtual Reality Field Trips, Melissa Sonta Thomas

Electronic Theses and Dissertations

The study seeks to inform solution to the lack of student exposure to frequent, culturally enriching field trips in school. To address the concern of limited learning through school field trips, this phenomenological study seeks to explore the lived experiences of virtual reality field trips for secondary students. The study seeks to examine how students respond emotionally, physically, and cognitively to the use of virtual reality within the classroom. Data analysis consists of observing, interviewing, and assessing students as they engage in and complete a virtual reality field trip. The three research domains are transcribed and analyzed to better understand …

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Scheduling Irregular Workloads On Gpus, David Arthur Troendle Jan 2019

Scheduling Irregular Workloads On Gpus, David Arthur Troendle

Electronic Theses and Dissertations

This doctoral research aims at understanding the nature of the overhead for data irregular GPU workloads, proposing a solution, and examining the consequences of the result. We propose a novel, retry-free GPU workload scheduler for irregular workloads. When used in a Breadth First Search (BFS) algorithm, the proposed simple, monolithic concurrent queue scales to within 10% of ideal scalability on AMD’s Fiji GPU with 14,336 active threads. The dissertation presents an important finding that the retry overhead associated with Compare and Swap (CAS) operations is the principle reason why concurrent queues do not scale well as the number of clients …

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Innovation Through Instructional Renovation: An Applied Research Study On Building Capacity Of Mathematics Teachers In Bark County Schools’ Excel Department, Lashonda Quina Ross-Ivory Jan 2019

Innovation Through Instructional Renovation: An Applied Research Study On Building Capacity Of Mathematics Teachers In Bark County Schools’ Excel Department, Lashonda Quina Ross-Ivory

Electronic Theses and Dissertations

The purpose of this applied research study was to build the capacity of middle school mathematics teachers to increase student achievement. The need to build the capacity of middle school mathematics teachers arose from the trend of low content and pedagogical knowledge exhibited by teachers throughout the department. This applied research study uses four elements individual collective and collaborative professional development as well as student achievement to build the capacity of middle school mathematics teachers and measure student achievement growth. A national screener surveys learning walk/focus group and interviews were used in the study. Using of the aforementioned elements and …

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A Computational Approach To Predicting And Understanding New Psychoactive Substances (Nps) For Developing A Database For State And Federal Crime Laboratories, Caroline Amelia Spencer Jan 2019

A Computational Approach To Predicting And Understanding New Psychoactive Substances (Nps) For Developing A Database For State And Federal Crime Laboratories, Caroline Amelia Spencer

Electronic Theses and Dissertations

The object of this dissertation was to use a computational approach to predict and understand new psychoactive substances (NPS) to develop a database for state and federal crime. The primary scope of the dissertation was to better understand the interactions that take place between new psychoactive substances and their corresponding receptors. Through analysis of the interactions between the amino acids within the receptors and the NPS an understanding into the pharmacology and toxicology of these drugs can be gained. NPS such as synthetic cannabinoids fentanyl and its analogs and kratom have become more problematic for both state and federal crime …

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Investigation Of Narrow Bipolar Events In Mississippi Thunderstorms, Sampath Asiri Bandara Jan 2019

Investigation Of Narrow Bipolar Events In Mississippi Thunderstorms, Sampath Asiri Bandara

Electronic Theses and Dissertations

In the first part of the study FA and Log-RF data were used to examine low-altitude (<8.0 km) negative NBEs (NNBEs) to see how many -CG flashes were initiated by NNBEs. Out of 686 -CG flashes only 33 (5%) flashes were initiated by an NNBE. These NNBEs occurred at an average altitude of 6.2 km had average amplitude (range-normalized amplitude to 100 km) of 0.4 V/m and had average VHF (Log-RF) power of 130 W. Since the low-altitude NNBEs were substantially weaker than positive NBEs that initiate intracloud (IC) flashes it is hypothesized that -CG flashes are easier to initiate than IC flashes. The second part of the study investigated the properties of 201 positive NBEs (+NBEs). The +NBEs were classified in two ways: into Types A-D [Karunarathne et al. 2015] and into three different groups: Isolated Not-isolated and IC flash-initiator or INBE [Wu et al. 2014]. The average VHF (Log-RF) power of NBEs within the A-D categories were 1.9 4 9.8 and 13.2 kW respectively while the powers for the Isolated Not-isolated and INBE categories were 10.1 4 and 10.1 kW respectively. The third study considered 34 NBEs that occurred close in space and time to each other: 13 pairs of NBEs one group of three +NBEs and one group of five +NBEs. The NBEs were overlaid on radar data of the parent thunderstorms. The data indicate that the individual NBEs in each group initiated in separate intense electric field regions of small extent rather than in a single large-scale electric field region. This dissertation investigates Narrow Bipolar Events (NBEs) which are a type of short-duration (10- 30 µs) lightning discharge. The study primarily used data from NBEs collected in 2016 at seven sensor sites within 50 km of Oxford Mississippi USA. Each sensor site had three electromagnetic antennas called Fast Antenna (FA) dE⁄dt and Log-RF with bandwidths of 0-2.5 MHz 0-1.0 MHz and 186-192 MHz respectively. NBEs are often isolated from other lightning events in thunderclouds but they sometimes initiate negative cloud-to-ground (-CG) and intracloud (IC) lightning flashes or they can occur during these flashes.

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Effects Of Halogen Bonding And Nir Tuning Of Dyes For Dye-Sensitized Solar Cells, Alexandra Baumann Jan 2019

Effects Of Halogen Bonding And Nir Tuning Of Dyes For Dye-Sensitized Solar Cells, Alexandra Baumann

Electronic Theses and Dissertations

With current energy demands being met through the utilization of energy sources such as petroleum, natural gas, and coal, the non-renewable nature of these sources will eventually approach depletion as world wide energy consumption increases yearly. As a result the need for a renewable energy alternative has become imminent. One appealing alternative that has gained considerable attention since its development due to a low cost and a high solar to electric conversion efficiency are dye-sensitized solar cells (DSCs). This dissertation describes efforts to design and synthesize improved organic dyes utilizing three analogous methods: first, through decreasing non-productive pathways such as …

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General Accounting And Auditing Developments, 2019/20; Audit Risk Alerts, American Institute Of Certified Public Accountants (Aicpa) Jan 2019

General Accounting And Auditing Developments, 2019/20; Audit Risk Alerts, American Institute Of Certified Public Accountants (Aicpa)

Industry Guides (AAGs), Risk Alerts, and Checklists

No abstract provided.

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Employee Benefit Plans Industry Developments - 2019; Audit Risk Alerts, American Institute Of Certified Public Accountants (Aicpa) Jan 2019

Employee Benefit Plans Industry Developments - 2019; Audit Risk Alerts, American Institute Of Certified Public Accountants (Aicpa)

Industry Guides (AAGs), Risk Alerts, and Checklists

No abstract provided.

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Spatio-Temporal Distribution Of Spiroplasma Infections In The Tsetse Fly (Glossina Fuscipes Fuscipes) In Northern Uganda, Daniela I. Schneider, Norah Saarman, Maria G. Onyango, Chaz Hyseni, Robert Opiro, Richard Echodu, Michelle O'Neill, Danielle Bloch, Aurélien Vigneron, T. J. Johnson, Kirstin Dion, Brian L. Weiss, Elizabeth Opiyo, Adalgisa Caccone, Serap Aksoy Jan 2019

Spatio-Temporal Distribution Of Spiroplasma Infections In The Tsetse Fly (Glossina Fuscipes Fuscipes) In Northern Uganda, Daniela I. Schneider, Norah Saarman, Maria G. Onyango, Chaz Hyseni, Robert Opiro, Richard Echodu, Michelle O'Neill, Danielle Bloch, Aurélien Vigneron, T. J. Johnson, Kirstin Dion, Brian L. Weiss, Elizabeth Opiyo, Adalgisa Caccone, Serap Aksoy

Faculty and Student Publications

Copyright: © 2019 Schneider et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Tsetse flies (Glossina spp.) are vectors of parasitic trypanosomes, which cause human (HAT) and animal African trypanosomiasis (AAT) in sub-Saharan Africa. In Uganda, Glossina fuscipes fuscipes (Gff) is the main vector of HAT, where it transmits Gambiense disease in the northwest and Rhodesiense disease in central, southeast and western regions. Endosymbionts can influence transmission efficiency of parasites through their insect …

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Two Poems, Travis Sharp Jan 2019

Two Poems, Travis Sharp

Yalobusha Review

No abstract provided.

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This Is Your Brain On Music: The Study Of Musical Influence On The Cognitive Mindset And Learning, Allysa N. Lipsey Jan 2019

This Is Your Brain On Music: The Study Of Musical Influence On The Cognitive Mindset And Learning, Allysa N. Lipsey

Honors Theses

This thesis examines the use of musical influence on the brain with an emphasis on the effects on cognitive mindset and learning in mathematics education. It explores the idea of the use of different trials and methods to potentially unlock new knowledge about the brain through listening to music during in-class group work, individual work, and class assessments. It allows for an analysis of the music’s effect on the brain and creates discussion in multiple classrooms and age groups through the eyes of a participant observer in an ethnographic research scenario. By analyzing behaviors of body language, musical taste and …

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Measurements Of The Primary Bjerknes Force In A Cavitating Ultrasonic Field, Mason Smith Jan 2019

Measurements Of The Primary Bjerknes Force In A Cavitating Ultrasonic Field, Mason Smith

Honors Theses

Cavitation is the result when there are rapid changes in pressure in a liquid. These vapor-filled cavities can occur when ultrasound propagates through water at sufficient power. The volumes of these cavities can pulsate and can even couple with the radiation pressure from the ultrasound. The result is a translational force on the bubbles. This translational force on the bubble is called the primary Bjerknes force. The secondary Bjerknes force is the result of two pulsating cavities, but this force is ignored since the buoyant force and the primary Bjerknes force are the dominant forces. Immediately before a bubble begins …

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Renewables & Refugees: A Solution For Jordan, Lauren Burns Jan 2019

Renewables & Refugees: A Solution For Jordan, Lauren Burns

Honors Theses

As the Hashemite Kingdom of Jordan continues to host the third largest Syrian refugee population in the world, the state’s infrastructure and its people are taking a toll. Before the war in Syria began, Jordan was already suffering from a weak economy, resource scarcity, and an enormous population boom. Since accepting nearly 2.5 million refugees, these issues have compounded year after year—nearly reaching a breaking point. I propose an unconventional solution to some aspects of the refugee crisis: renewable energy. Renewables are cheaper than fossil fuels, consume less water in electricity generation, emit fewer greenhouse gases, and promote job creation …

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Economic Advancement Across The European Playing Field, Zac Herring Jan 2019

Economic Advancement Across The European Playing Field, Zac Herring

Honors Theses

This project seeks to examine the relationship between economic history, soccer, and economic institutions in countries who have attained varying levels of success on the soccer field and economically. The work of several influential scholars in recent decades has drawn attention to the need for a shift in the goal for economic achievement from industrialization to institutional effectiveness. This study develops a model to further understand the relationship between economic achievement and soccer success. It then includes case studies of three countries from the model in order to further understand the impact of the institutions that have a significant presence …

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A Comprehensive Review Of Accounting And Financial Reporting Principles, Nicholas Egorshin Jan 2019

A Comprehensive Review Of Accounting And Financial Reporting Principles, Nicholas Egorshin

Honors Theses

The following Thesis is comprised of twelve case studies that were completed over one year in the course ACCY 420. This course, led by Dr. Victoria Dickinson, challenged students to dive deeper into accounting concepts and principles through the analysis of financial statements presented from real companies. The companies analyzed do business in a variety of industries and disciplines, so students were able to see the accounting process through a multitude of lenses. Some companies examined used foreign currency and adhered to International Accounting policies, so analysis and critical thinking skills were necessary in truly understanding the significance of the …

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