Digital Commons Network^™

Coordinated Unmanned Aircraft System (Uas) And Ground-Based Weather Measurements To Predict Lagrangian Coherent Structures (Lcss), Peter J. Nolan, James Pinto, Javier González-Rocha, Anders Jensen, Christina N. Vezzi, Sean C. C. Bailey, Gijs De Boer, Constantin Diehl, Roger Laurence Iii, Craig W. Powers, Hosein Foroutan, Shane D. Ross, David G. Schmale Iii

Mechanical Engineering Faculty Publications

Concentrations of airborne chemical and biological agents from a hazardous release are not spread uniformly. Instead, there are regions of higher concentration, in part due to local atmospheric flow conditions which can attract agents. We equipped a ground station and two rotary-wing unmanned aircraft systems (UASs) with ultrasonic anemometers. Flights reported here were conducted 10 to 15 m above ground level (AGL) at the Leach Airfield in the San Luis Valley, Colorado as part of the Lower Atmospheric Process Studies at Elevation—a Remotely-Piloted Aircraft Team Experiment (LAPSE-RATE) campaign in 2018. The ultrasonic anemometers were used to collect simultaneous measurements of …

Riverbank Filtration Impacts On Post Disinfection Water Quality In Small Systems—A Case Study From Auburn And Nebraska City, Nebraska, Matteo D'Alessio, Bruce Dvorak, Chittaranjan Ray

Daugherty Water for Food Global Institute: Faculty Publications

Small water systems can experience a fluctuating quality of water in the distribution system after disinfection. As chlorine is the most common disinfectant for small systems, the occurrence of disinfection byproducts (DBPs) represents a common problem for these systems. Riverbank filtration (RBF) can be a valuable solution for small communities located on riverbanks. The objectives of this study were to evaluate (i) the improvements in water quality at two selected RBF systems, and (ii) the potential lower concentrations of DBPs, in particular, trihalomethanes (THMs), in small systems that use RBF. Two small communities in Nebraska, Auburn and Nebraska City, using …

A Fuzzy Based Model For Standardized Sustainability Assessment Of Photovoltaic Cells, Muath Bani Salim, Dervis Emre Demirocak, Nael Barakat

Mechanical Engineering Faculty Publications and Presentations

In this paper, a new environmental sustainability indicator (ESI) is proposed to evaluate photovoltaic (PV) cells utilizing Life Cycle Analysis (LCA) principles. The proposed indicator is based on a model that employs a fuzzy logic algorithm to combine multiple factors, usually used in multiple LCAs, and produce results allowing a comprehensive interpretation of LCA phase sub-results leading to standardized comparisons of various PV cells. Such comparisons would be essential for policymakers and PV cell manufacturers and users, as they allow for fair assessment of the environmental sustainability of a particular type of PV with multiple factors. The output of the …

Ua45/6 Commencement Program, Wku Registrar

WKU Administration Documents

Commencement program listing graduates.

A War Won In The Skies: Air Superiority In The Second World War, Chandler Dugal

Senior Honors Projects, 2010-2019

This paper studies the impact that air superiority had on the outcome of the Second World War in both the European and Pacific theaters of war, and argues that it was the determining factor in the outcome of the conflict. The paper outlines both the tactical and strategic aspects of air-power along the respective 'fronts'. In addition, the relative quantitative and qualitative strength of the air forces of the belligerent nations are discussed, along with their aircraft production and technological capabilities.

A Decade Of Change: A Case Study Of Regulatory Compliance Costs In The Produce Industry, Lynn Hamilton, Michael Mccullough

Agribusiness

Regulatory pressure is a source of increasing concern to the California agricultural industry. In the decade since 2006, new rules at both the state and federal levels have imposed significantly higher regulatory burdens on growers, specifically with respect to food safety, water quality, labor wages, air quality; and worker health and safety. Additional regulations are in process as the Sustainable Groundwater Management Act is developed at the local levels for implementation in 2022, and minimum wage and overtime laws for farmworkers are phased in, also by 2022.

Previous studies regarding the regulatory environment in California have quantified the total cost …

An Interdisciplinary Code Sepsis Team To Improve Sepsis Bundle Compliance In The Emergency Department, Jill M. Delawder

Doctor of Nursing Practice (DNP) Final Clinical Projects, 2016-2019

Purpose: Sepsis is one of the leading causes of mortality with over 700,000 hospitalizations and 200,000 deaths annually. Various tools exist to aid in the early identification and treatment of sepsis including electronic alert systems, standardized order sets, nurse-initiated protocols and specialty trained teams. Despite available guidelines, mortality rates for severe sepsis and septic shock are near 50%.

Methods: The aims of this rapid cycle quality improvement project were 1) to develop and implement an interdisciplinary team to address early implementation of evidence-based sepsis bundles in the emergency department and 2) to compare sepsis bundle compliance three months pre-and three …

Stem Stories, December 2018, #3, Brooke Wiese

STEM Stories

Faculty Profile - Alexa Sedlacek

Vortex Motions Around A Vertically Vibrating Cylinder In Oscillatory Flows, Symphony Chakraborty, Tzu-Wen Lin, Ming-Jyh Chern

Journal of Marine Science and Technology–Taiwan

Numerical simulations of the vortex-induced vibration (VIV) on a circular cylinder in an oscillatory flow were conducted using the direct-forcing immersed boundary (DFIB) method. VIV of structures is a practical engineering problem. Many engineers have devoted themselves to research on the prevention of VIV, which can cause severe damage to offshore construction equipment and structures. Fluctuating hydrodynamic force induces vibration of structures because of the vortex around the structure. This vibration causes structural failure due to the lock-in phenomenon. A phenomenon termed “springing” (a secondorder wave effect caused by superposition of the incident waves and the reflected waves or other …

Dignity In Decision-Making: Modernity And Social Navigation Among Rural French Polynesian Youth, Laura Jarvis

Anthropology Theses and Dissertations

This research examines critical questions about the experiences of youth through the lenses of modernity, subjectivity, and the lifecourse. Growing up in a (post)colonial context of shifting definitions of adulthood, youth from the rural island of Rurutu, French Polynesia must navigate various decisions and transformations with little information to base their future aspirations on. This dissertation identifies dignity as the main motivating factor in youth decision-making, one that is constantly redefined as youth navigate shifting social fields. Dignity, as used here, is a target youth strive for in order to contest feelings of social precarity stemming from unaccommodating education systems …

Hydrodynamic Analysis Of Underwater Glider With Diamond Wing In Unsteady And Nonuniform Flow Field, Chen-Wei Chen, Zhuo Feng, Xu Liang

Journal of Marine Science and Technology–Taiwan

In this study, the hydrodynamic performance of a proposed underwater glider (UG) that utilizes a diamond wing was analyzed and its gliding ability in undersea environments with both steady and uniform and unsteady and nonuniform oceanic currents optimized. The flow field around the UG was analyzed using the software package RANS CFD. Under conditions where the current varied linearly both with water depth and time, the UG exhibited harmonically heaving and pitching motions, with a constant acceleration incident flow. The dynamic lifting and drag forces acting on the diamond wing and the dynamic heaving force and pitching moment acting at …

Rare But Recurrent Ros1 Fusions Resulting From Chromosome 6q22 Microdeletions Are Targetable Oncogenes In Glioma., Monika A Davare, Jacob J Henderson, Anupriya Agarwal, Jacob P Wagner, Sudarshan R Iyer, Nameeta Shah, Randy Woltjer, Romel Somwar, Stephen W Gilheeney, Ana Decarvalo, Tom Mikkelson, Erwin G Van Meir, Marc Ladanyi, Brian J Druker

Articles, Abstracts, and Reports

PURPOSE: Gliomas, a genetically heterogeneous group of primary central nervous system tumors, continue to pose a significant clinical challenge. Discovery of chromosomal rearrangements involving kinase genes has enabled precision therapy, and improved outcomes in several malignancies.

EXPERIMENTAL DESIGN: Positing that similar benefit could be accomplished for patients with brain cancer, we evaluated The Cancer Genome Atlas (TCGA) glioblastoma dataset. Functional validation of the oncogenic potential and inhibitory sensitivity of discovered ROS1 fusions was performed using three independent cell-based model systems, and an

RESULTS:

CONCLUSIONS: Our findings highlight that CNS tumors should be specifically interrogated for these rare intrachromosomal 6q22 microdeletion …

Detection, Containment And Scaling Relations Of Near Source Explosionsin Granite Through Moment Tensor Representations, Mason Macphail

Earth Sciences Theses and Dissertations

The Source Phenomenology Experiment (SPE) was a series of nine, single-fired chemical explosions within the Morenci Copper mine in Arizona. Its purpose was to design, detonate, record and analyze seismic waveforms from these single-fired, partially and fully contained explosions. Ground motion data from the SPE are analyzed in this study to assess the uniqueness of the source representation of these explosions and its ability to resolve yield and depth when containment and geology or physical parameters of the source region may have a range of possible values. The P-wave velocities (V_p) at the test site are well constrained …

2018 Fall - Commencement Program, Office Of The Registrar, East Tennessee State University

ETSU Commencement Ceremonies and Programs

No abstract provided.

Fast Forward-Backward Channel Estimation For Mimo Stbc-Ofdm Systems, Lena Chang

Journal of Marine Science and Technology–Taiwan

In the study, we develop a fast forward-backward estimation (FFBE) method for multiple input multiple output (MIMO) space time block code (STBC) orthogonal frequency division multiplexing (OFDM) systems. We examined the matrix structure of the forward-backward (FB) correlation matrix and observed this matrix possessing permutation invariant (PI) property. We also investigated the eigen-property of a matrix with PI property and proved its eigenvectors possessing symmetric property, which can be calculated from two half dimensionality submatrices. Based on these analyses, we propose a fast eigen-decomposition algorithm to reduce the computations required in the eigendecomposition of FB correlation matrix. Then, the symmetric …

169th Commencement, Fall

Commencement Programs

No abstract provided.

Art In The Stages Of Suffering And Death, Joanna Aramini

Visual Arts Department Student Scholarship

There has always been a strong link between art and the study of science and medicine, and one of the most iconic images of suffering and death in history to date is Christ suffering on the cross. In this thesis, I examine if and how art can make it possible to transcend human pain and overcome suffering, especially in our modern society where pain is seen as something we cannot deal with, and where we look to medicine and prescriptions to diminish it. I argue that art in the states of suffering and death, closely examining Michelangelo’s La Pieta and …

Community College Students’ Perceived Value Of High School Career And Technical Education Program Experiences, Martin Douglass

CUP Ed.D. Dissertations

The goal of this qualitative, narrative inquiry study was to explore the voices of community college students who have taken Career and Technical Education (CTE) while in high school, investigate if they perceived value from their high school CTE classes, and determine how those experiences impacted their high school and college educations (cf. Association for Career and Technical Education, 2016; American Institutes for Research, 2013; Southern Regional Education Board, 2008). The central research question for the dissertation was: What value do local community college students believe their high school Career and Technical Education program participation provided? The screening survey had …

A Novel Splitting Beam Laser Extensometer Technique For Kolsky Tension Bar Systems, Colin Loeffler

Mechanical Engineering Research Theses and Dissertations

The Kolsky (Split Hopkinson) Bar has become a well-known and established experimental technique for characterizing the mechanical behavior of materials subjected to dynamic loading conditions. Kolsky bar based experimental techniques facilitate the application of controlled and repeatable dynamic loading conditions to a specimen as well as the high resolution measurement of the resulting mechanical response. In recent decades the technique has been refined and adapted to provide more complex dynamic stress-states beyond uniaxial compression. However, the increasing complexity of the experimental apparatus introduces uncertainty to the traditional specimen deformation measurement techniques.

In this thesis, a direct non-contact optical measurement technique …

Spatial Exploration Of Trace Metals In Near-Surface Water And Soil In The Bolivian Altiplano, Lizzie Wilson

Civil and Environmental Engineering Theses and Dissertations

We analyzed soil and groundwater samples from the Bolivian Altiplano for trace metal concentrations, correlations and partitioning trends. Total digestion, sequential extraction and loss on ignition experiments were performed on soil samples. We ran aqueous samples on an ICP-MS. Results were analyzed to identify trace metal concentrations and find any significant correlations. We generated interpolated maps in ArcGIS to spatially analyze results. Results for elevated concentrations of interest were divided into sub-groups of organophilic metals, oxoanions and divalent metals and include vanadium, arsenic, selenium, zinc, nickel, lead, cobalt, uranium, copper and manganese. These elements are likely naturally sourced. We found …

Non-Classical Plate Models Incorporating Microstructure And Surface Energy Effects: Their Variational Formulations And Applications, Gongye Zhang

Mechanical Engineering Research Theses and Dissertations

In this dissertation research, new non-classical models for Kirchhoff and Mindlin plates are developed and applied to study band gaps for flexural wave propagation in composite plate structures.

In Chapter 2, a new non-classical model for a Kirchhoff plate resting on an elastic foundation is developed using a modified couple stress theory, a surface elasticity theory and a two-parameter elastic foundation model. A variational formulation based on Hamilton’s principle is employed, which leads to the simultaneous determination of the equations of motion and the complete boundary conditions and provides a unified treatment of the microstructure, surface energy and foundation effects. …

Optical Micro-Seismometer Based On Evanescent Field Perturbation Of Whispering Gallery Modes, Jaime Da Silva

Mechanical Engineering Research Theses and Dissertations

This thesis proposes a light-weight, compact, and accurate optical micro-seismometer that could be used in many applications, such as planetary exploration. The sensor proposed here is based on the principle of whispering gallery optical mode (WGM) resonance shifts of a dielectric micro-resonator due to disturbances of its evanescent field. The micro-seismometer could be used in place of the traditional bulky seismometers. The design of a waveguide-resonator and mechanical structure to disturb the evanescent field are presented. A proof-of-concept a seismometer model that uses a 5µm ring resonator is numerically tested with actual seismic data. The results show that a WGM-based …

Men, Women And Guitars In Romantic England (Page), Ellwood Colahan

Soundboard Scholar

A review of Christopher Page, Men, Women and Guitars in Romantic England (Gresham College), six videos, https://www.gresham.ac.uk/series/men-women-and-guitars-in-romantic-england/.

Optimal Placement Of Distributed Energy Storage Systems In Distribution Networks Using Artificial Bee Colony Algorithm, Choton K. Das, Octavian Bass, Ganesh Kothapalli, Thair S. Mahmoud, Daryoush Habibi

Research outputs 2014 to 2021

The deployment of utility-scale energy storage systems (ESSs) can be a significant avenue for improving the performance of distribution networks. An optimally placed ESS can reduce power losses and line loading, mitigate peak network demand, improve voltage profile, and in some cases contribute to the network fault level diagnosis. This paper proposes a strategy for optimal placement of distributed ESSs in distribution networks to minimize voltage deviation, line loading, and power losses. The optimal placement of distributed ESSs is investigated in a medium voltage IEEE-33 bus distribution system, which is influenced by a high penetration of renewable (solar and wind) …

Measurement Of The Radial Mode Spectrum Of Photons Through A Phase-Retrieval Method, Saumya Choudhary, Rachel Sampson, Yoko Miyamoto, Omar S. Magaña-Loaiza, Seyed Mohammad Hashemi Rafsanjani, Mohammad Mirhosseini, Robert W. Boyd

Faculty Publications

We propose and demonstrate a simple and easy-to-implement projective-measurement protocol to determine the radial index p of a Laguerre–Gaussian (LGlp) mode. Our method entails converting any specified high-order LG0p mode into a near-Gaussian distribution that matches the fundamental mode of a single-mode fiber (SMF) through the use of two phase screens (unitary transforms) obtained by applying a phase-retrieval algorithm. The unitary transforms preserve the orthogonality of modes before the SMF and guarantee that our protocol can, in principle, be free of crosstalk. We measure the coupling efficiency of the transformed radial modes to the SMF for different pairs of phase …

Racial Integration And White Supremacy In America: Can America Integrate Its Power Structures And Liberate Them From White Supremacy, Billy Lane

Graduate Liberal Studies Theses and Dissertations

Neither the presence of black people in predominantly white spaces nor the appropriation of black culture are indicators of racial justice. Power structures must be integrated even more so than subdivisions, classrooms, breakrooms, church pews, and pop culture. This thesis will explore the absence of African-American leadership from the highest ranks of our power structures that are central to contemporary life and the dynamics within each of these power structures that help to protect white supremacy and therefore maintain segregation.

Leveraging Grammars For Openmp Development In Supercomputing Environments, Samuel Hunter

Computer Science and Engineering Theses and Dissertations

This thesis proposes a solution to streamline the process of using supercomputing re- sources on Southern Methodist University’s ManeFrame II supercomputer. A large segment of the research community that uses ManeFrame II belong outside of the computer science department and the Lyle School of Engineering. While users know how to apply compu- tation to their field, their knowledge does not necessarily extend to the suite of tools and operating system that are required to use ManeFrame II. To solve this, the thesis proposes an interface for those who have little knowledge of Linux and SLURM to be able to use …

The Superior Solution To The “Denominator Problem” — Comparing The Majority And Dissent’S Property Benchmark Tests In Murr V. Wisconsin With A Focus On Property Owners’ Reasonable Expectations, Rosemary K. Mcguirk

William & Mary Bill of Rights Journal

No abstract provided.

Comparing Pollen And Archaeobotanical Data For Chalcolithic Cereal Agriculture At Çatalhöyük, Turkey, Warren J. Eastwood, Andrew Fairbairn, Elizabeth Stroud, Neil Roberts, Henry Lamb, Hakan Yiğitbaşıoğlu, Çetin Şenkul, Andrew Moss, Rebecca Turner, Peter Boyer

More Faculty of Science and Engineering Research

© 2018 Establishing agricultural activity using pollen analysis is one of the prime challenges of a palaeoecological investigation. Here we report combined pollen and archaeobotanical data originating from a waterlogged off-site organic-rich fill radiocarbon dated to ∼8 ka Cal BP located between the two occupation mounds at Neolithic-Chalcolithic Çatalhöyük, south central Turkey in order to investigate the record of Early Chalcolithic agricultural activity. Pollen results indicate extremely high abundances of Cerealia-type pollen (30->70%) and critical measurements of these show them to be Triticum-type, Avena/Triticum-type, Secale-type and Hordeum-type. Pollen data are also compared with archaeobotanical data retrieved from the same …

The Library Book, Kylie Bean

Departmental Honors & Graduate Capstone Projects

I wrote my novella, The Library Book, in partial fulfillment of my creative writing seminar. The majority of the coursework of this seminar consisted of writing and revising an entire novella from initial conception and outlining to final revisions. I am submitting my revised copy of The Library Book, which I submitted as the final project of my ENGL 470B seminar. I received an A on this project and will be reading a section of my novella at the 2019 Kemp Symposium this Friday. The Library Book is a forty-eight-page fantasy novella written for a middle grade audience. …