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Articles 1 - 30 of 2868
Full-Text Articles in Engineering
Drone Delivery Of Cbnrecy – Dew Weapons Emerging Threats Of Mini-Weapons Of Mass Destruction And Disruption (Wmdd), Randall K. Nichols, Suzanne Sincavage, Hans Mumm, Wayne Lonstein, Candice Carter, John Paul Hood, Randall Mai, Mark Jackson, Mike Monnik, Robert Mccreight, William Slofer, Troy Harding
Drone Delivery Of Cbnrecy – Dew Weapons Emerging Threats Of Mini-Weapons Of Mass Destruction And Disruption (Wmdd), Randall K. Nichols, Suzanne Sincavage, Hans Mumm, Wayne Lonstein, Candice Carter, John Paul Hood, Randall Mai, Mark Jackson, Mike Monnik, Robert Mccreight, William Slofer, Troy Harding
NPP eBooks
Drone Delivery of CBNRECy – DEW Weapons: Emerging Threats of Mini-Weapons of Mass Destruction and Disruption (WMDD) is our sixth textbook in a series covering the world of UASs and UUVs. Our textbook takes on a whole new purview for UAS / CUAS/ UUV (drones) – how they can be used to deploy Weapons of Mass Destruction and Deception against CBRNE and civilian targets of opportunity. We are concerned with the future use of these inexpensive devices and their availability to maleficent actors. Our work suggests that UASs in air and underwater UUVs will be the future of military and civilian terrorist operations ...
Fea Analysis On A Beam Of Hexacopter Drone Frame, Aicha Chahbi El Alaoui, Taymae Ben Messaoud
Fea Analysis On A Beam Of Hexacopter Drone Frame, Aicha Chahbi El Alaoui, Taymae Ben Messaoud
ME 4233/6233 Fundamentals of FEA
Our project covers the research made, a deep analysis, the structural design, modeling, and design of a hexa copter, which has six degrees of freedom. In order to improve the drone’s dynamics and efficiency, an analysis will be conducted on one beam constituting the drone using Abacus.
The School Of Engineering And Computer Science Class Of 2022 Academic Celebration, Cedarville University
The School Of Engineering And Computer Science Class Of 2022 Academic Celebration, Cedarville University
Engineering and Computer Science Academic Celebrations
No abstract provided.
Leverage Topology Optimization To Maximize Structure Design Efficiency, Teng Li, Saad Aqerrout
Leverage Topology Optimization To Maximize Structure Design Efficiency, Teng Li, Saad Aqerrout
ME 4233/6233 Fundamentals of FEA
This paper presents the topology optimization method to improve the efficiency of mechanical structure design.
Computational Mechanics Implementation Of Performance Based Testing In Massive Concrete Structures, Gabriel Y. Riveros
Computational Mechanics Implementation Of Performance Based Testing In Massive Concrete Structures, Gabriel Y. Riveros
ME 4233/6233 Fundamentals of FEA
Most of the nation’s critical water resource infrastructures are near or have exceeded their design lives. Consequently, there is a huge need for the development of assessment procedures that will change the way dams are maintained and operated with the intent of extending the service life. This is crucial for ensuring the safety and security of our nation’s public services. The combination of advanced computational mechanics and performance based testing (PBT) methods can be used to investigate the existing conditions of large concrete structures.
Performance based testing (PBT) is a new and innovative non-destructive testing technique that we ...
Comparison Of Johnson-Cook And Linear Elastic-Perfectly Plastic Material Models For Ballistic Impact Case, Logan J. Callahan, Marella Failla, Harrison Williams
Comparison Of Johnson-Cook And Linear Elastic-Perfectly Plastic Material Models For Ballistic Impact Case, Logan J. Callahan, Marella Failla, Harrison Williams
ME 4233/6233 Fundamentals of FEA
In an effort to characterize the linear elastic-perfect plastic (J2) and Johnson-Cook (JC) Strengthening and Damage material models for an Aluminum target material being struck by a steel penetrator, finite element analysis (FEA) will be used to simulate the residual velocities from ballistic impacts, using various velocities of the penetrator. The object is to define the point at which the J2 material model is no longer accurate and therefore requires the use of the JC material models.
Numerical Analysis Of Taylor Impact With Various Nose Shapes, Jean C. Santiago Padilla, Erik M. Chappell
Numerical Analysis Of Taylor Impact With Various Nose Shapes, Jean C. Santiago Padilla, Erik M. Chappell
ME 4233/6233 Fundamentals of FEA
The Taylor impact test is an experimental technique used to determine dynamic material response and to validate constitutive models used in numerical simulations. It generally consists of shooting a cylinder rod of a select material against a rigid target at different velocities. After impact, the plastic deformation of the cylinder is recorded and is directly compared to numerical predictions. Another application for Taylor impact was proposed by Li et al. (2021) where the nose shape of the cylinder is modified to create different loading environments that can test electronic equipment in penetration weapons. FEA models where designed in ABAQUS/Explicit ...
Prediction Of Residual Stresses In L-Pbf Ti-6al-4v Fatigue Specimens Using A Thermo-Mechanical Finite Element Model, Haley Petersen, Brad J. Sampson
Prediction Of Residual Stresses In L-Pbf Ti-6al-4v Fatigue Specimens Using A Thermo-Mechanical Finite Element Model, Haley Petersen, Brad J. Sampson
ME 4233/6233 Fundamentals of FEA
Laser Powder Bed Fusion (L-PBF) is an additive manufacturing process that is becoming widely adopted in the automotive, aerospace, and biomedical industries. It uses a laser to melt metal in the form of powder to build parts in a layer-by-layer fashion based on an imported CAD geometry. The constant remelting of previous layers can produce unwanted thermally induced residual stresses in the part due to large thermal gradients, which can drastically reduce the fatigue life of the material. Predicting these residual stresses within the as-built part would be advantageous because one could better understand how the part will perform in ...
Trust Nonlinear Dynamic, Sami Zeggar, Adib El Mrabet Tarmach
Trust Nonlinear Dynamic, Sami Zeggar, Adib El Mrabet Tarmach
ME 4233/6233 Fundamentals of FEA
The TRUST project's goal is to promote the efficient and responsive development of experimental, modeling, and simulation capabilities for future systems by constructing realistic testbeds that can be exercised more readily and efficiently. The testbeds will be used to conduct experiments in present and future engineering environments using complimentary modeling and simulation. TRUST required several tools in preproduction states and helped identify key features for future development. The required tools include: 1. Automated simulation management from the engineering common model framework (ECMF) 2. Version controlled model repositories for engineering analysis baseline models (EABM) 3. Experimental results databases (TIMS) 4 ...
A Computational Approach For The Estimation Of Elastic Behavior Of Metal Matrix Composites, Emmanuel Michalakis
A Computational Approach For The Estimation Of Elastic Behavior Of Metal Matrix Composites, Emmanuel Michalakis
ME 4233/6233 Fundamentals of FEA
Composite materials are being widely used in many industries for their properties and efficiency. The current work presents a computational approach that can estimate the elastic behavior of metal composites and porous materials using finite element models of representative volume elements (RVEs) which have been used to test and design particulate composite materials. The required size of the RVE for the determination of elastic properties, the effects of the elastic modulus fraction Einc/Emat on the homogenized elasticity and the convergence of the homogenized properties E11, E22 and E33 with the size of the RVE is explored.
2021-2022 Program And Abstracts: Celebration Of Student Scholarship, Morehead State University. Undergraduate Research Fellowship Program.
2021-2022 Program And Abstracts: Celebration Of Student Scholarship, Morehead State University. Undergraduate Research Fellowship Program.
2022 Celebration of Student Scholarship - Poster Presentations
The 2021-2022 Program and Abstracts for the Celebration of Student Scholarship at Morehead State University held on April 27, 2022. A Showcase of Student Research, Scholarship, Creative Work, and Performance Arts.
Understanding Travel For Families With A Physically Disabled Child Through The Occupational Therapy Lens, Dinah Adams, Karen Park, Susan Macdermott
Understanding Travel For Families With A Physically Disabled Child Through The Occupational Therapy Lens, Dinah Adams, Karen Park, Susan Macdermott
Spring 2022 Virtual OTD Capstone Symposium
Travel is a complex occupation that involves interactions between body function, activity participation, and the environment. For families traveling with a physically disabled child this occupation becomes even more complex. The available literature on the lived experiences of these families is significantly limited. This project aims to determine participants’ experiences of commercial airline travel with a child who has a physical disability. Through the participants experiences, barriers and needs of this population can be identified. Through identification of barriers, the needs of this population are highlighted as well as ways they can be supported and advocated for.
Analysis Of An Existing Method In Refinement Of Protein Structure Predictions Using Cryo-Em Images, Maytha Alshammari, Jing He, Willy Wriggers, Jiangwen Sun
Analysis Of An Existing Method In Refinement Of Protein Structure Predictions Using Cryo-Em Images, Maytha Alshammari, Jing He, Willy Wriggers, Jiangwen Sun
College of Sciences Posters
Protein structure prediction produces atomic models from its amino acid sequence. Three-dimensional structures are important for understanding the function mechanism of proteins. Knowing the structure of a given protein is crucial in drug development design of novel enzymes. AlphaFold2 is a protein structure prediction tool with good performance in recent CASP competitions. Phenix is a tool for determination of a protein structure from a high-resolution 3D molecular image. Recent development of Phenix shows that it is capable to refine predicted models from AlphaFold2, specifically the poorly predicted regions, by incorporating information from the 3D image of the protein. The goal ...
Funding Achievement In Kentucky, Brett Blair, James Masterson
Funding Achievement In Kentucky, Brett Blair, James Masterson
2022 Celebration of Student Scholarship - Poster Presentations
It is no surprise that the proper education of a population ranks high on the list of important accomplishments within a society. After all, a population’s education can affect its ability to perform at a high capacity. The education of Kentucky’s children is no different. Recent years have seen large disparities in the resources available to each school in Kentucky, which could have effects on the educational output of regions in the state. Though research has been conducted on concepts such as school funding, educational quality, and education reform, this research tends to be lacking in specificity and ...
A Preliminary Survey On The Biodiversity Of Wasps In Eastern Kentucky, Lorien Molstad, Zoe Baker, Julia Fitzpatrick, Bethany Lucio, Sean O'Keefe
A Preliminary Survey On The Biodiversity Of Wasps In Eastern Kentucky, Lorien Molstad, Zoe Baker, Julia Fitzpatrick, Bethany Lucio, Sean O'Keefe
2022 Celebration of Student Scholarship - Poster Presentations
Biodiversity is the measure of variability of interactions between living organisms within an area. Biodiversity contributes significantly to the production of different life sustaining resources and supports a diversity of ecological life. A greater biodiverse area can help maintain environmental balance and maintain ecological diversity and health. There are multiple economic, cultural, and scientific reasons as to why biodiversity is important. When assessing biodiversity, mammals and birds are commonly used as surrogates. The problem with mammals and birds is that there are relatively few species and relatively few individuals in an area, so quantitative assessment can be difficult. However, insects ...
Creating The First Genetically Engineered Eukaryote With Circular Chromosomes, Duncan Mcginnis, Melissa Mefford
Creating The First Genetically Engineered Eukaryote With Circular Chromosomes, Duncan Mcginnis, Melissa Mefford
2022 Celebration of Student Scholarship - Poster Presentations
Prokaryotes and eukaryotes differ in their chromosome structure; prokaryotes have a single circular chromosome, while eukaryotes have multiple circular chromosomes. Linear chromosomes are more complex than circular ones and create problems for eukaryotes. Many of these issues are solved by telomeres—long, repetitive sequences of DNA found on the ends of most eukaryotic chromosomes. They protect the ends from harm and limit how many times a cell can divide. Two of our greatest medical challenges, cancer and aging, are closely related to telomeres; most cancers upregulate telomerase, and aging human cells display shorter telomeres. To investigate the evolution and function ...
Photography Practicum: Learning The Basics Of Managing A Fine Art Photography Darkroom, Brooklin Routt, Allison Jones, Frazier Pack, Robyn Moore
Photography Practicum: Learning The Basics Of Managing A Fine Art Photography Darkroom, Brooklin Routt, Allison Jones, Frazier Pack, Robyn Moore
2022 Celebration of Student Scholarship - Poster Presentations
The photography practicum provides Art and Design student researchers with the practical experience of managing a fine art photography studio. Students learn how to operate, manage, and maintain industry-standard fine art archival inkjet printers as well as a fourteen-station traditional black and white darkroom. This project provides essential expertise and knowledge that students, as lab monitors, both share with other students and incorporate into their own fine art practice and professional activities. Student researchers learn how to mix, store, and dispose of photographic chemistry, provide daily assistance to undergraduate and graduate photography students, and generate ideas for improvements to the ...
Quantifying Ant Populations To Measure Biodiversity In Morehead, Ky, Alyssa Turner, Jude Hall, Tayla Lee, Charles Lydeard, Sean O'Keefe
Quantifying Ant Populations To Measure Biodiversity In Morehead, Ky, Alyssa Turner, Jude Hall, Tayla Lee, Charles Lydeard, Sean O'Keefe
2022 Celebration of Student Scholarship - Poster Presentations
To effectively conduct conservation efforts, we can use biodiversity to assess the condition of our environment. Biodiversity has been commonly defined as the variety and variability among living organisms within an area. When our ecosystems are at their best, they clean water, purify air, maintain soil, regulate climate, recycle nutrients, and provide food. Everything within an ecosystem is interdependent, so biodiversity is an important factor and indicator of environmental health. Indicators help us to measure and monitor pressures or threats in land and water use, habitat loss or invasive species, the state of species and ecosystems, the conservation response, and ...
Technology In Workplace Communication By Generation, Hannah Meadows, Christy Trent
Technology In Workplace Communication By Generation, Hannah Meadows, Christy Trent
2022 Celebration of Student Scholarship - Poster Presentations
The purpose of this research study was to determine the generational differences in the use of communication technology in the workplace. Most employees feel a deeper sense of connection to those in their own generational group. This survey looks at ideologies across four generations, Baby Boomers, Generation X, Millennials, and Generation Z, to help give employers some insight into why employees feel this way and encourage better communication in the workforce.
The Perception Of Minority Student-Athletes’ And Non-Athlete Students’ Learning Experience At A Predominately White Institution, William Wellman, Jelani Garvin, Jane Zhang, Steve Chen
The Perception Of Minority Student-Athletes’ And Non-Athlete Students’ Learning Experience At A Predominately White Institution, William Wellman, Jelani Garvin, Jane Zhang, Steve Chen
2022 Celebration of Student Scholarship - Poster Presentations
This study examined mainly African-American and minority students' learning experience at a regional public university in Appalachia for the purpose of improving the existing academic support services and creating a safe diverse learning environment for racial minority students.
Morphometrics Of The Rare Earwigfly Merope Tuber, Nicholas Finch, Sean O'Keefe
Morphometrics Of The Rare Earwigfly Merope Tuber, Nicholas Finch, Sean O'Keefe
2022 Celebration of Student Scholarship - Poster Presentations
Merope tuber Newman (Mecoptera: Meropeidae) is a rare North American species of earwigfly, which is closely related to common scorpionflies. “Earwigfly” refers to three different species: the Western Australian Austromerope poulton, the South American Austromerope brasiliensis, and finally, the Eastern North American Merope tuber. This last species was the focus of our study. Johnson’s 1995 study was based on 160 earwigflies, where he measured the female abdomen length, male and female forewing length, and male basistylus and dististylus length. In their 2014 study, based on 82 earwigflies, Skvarla, Hartshorn, and Dowling measured head width, pronotum width, forewing length, abdomen ...
Telomerase Activity Enhancement In Saccharomyces Cerevisiae, Mackenzie Neal, Hailey Rietz, Melissa Mefford
Telomerase Activity Enhancement In Saccharomyces Cerevisiae, Mackenzie Neal, Hailey Rietz, Melissa Mefford
2022 Celebration of Student Scholarship - Poster Presentations
Telomeres are located at the ends of eukaryotic linear chromosomes and are composed of repeated nucleotide sequences. One of their main functions is to protect chromosomal ends from being damaged. Telomeres cannot be completely copied during DNA replication so they gradually shorten during each replication cycle in what is known as the “end replication problem”. To counteract this problem, the RNA dependent enzyme complex telomerase works to extend telomeres and help protect the ends of chromosomes. Telomeres and the telomerase enzyme are heavily involved in the aging process and cancer progression. Telomeres gradually shorten with age and eventually become so ...
Genes Repressed After Dna Damage In Acinetobacter Baumannii Are Co-Regulated By Umudab And Ddrr, Mollee Flannigan, Xiaohong Li, Eric Rouchka, Deborah Cook, Janeele Hare
Genes Repressed After Dna Damage In Acinetobacter Baumannii Are Co-Regulated By Umudab And Ddrr, Mollee Flannigan, Xiaohong Li, Eric Rouchka, Deborah Cook, Janeele Hare
2022 Celebration of Student Scholarship - Poster Presentations
UmuDAb and DdrR coregulate error-prone polymerases in the multi-drug resistant opportunistic pathogen, Acinetobacter baumannii, by repressing polymerase expression until after DNA damage. New evidence indicates that these proteins may also regulate other genes that are repressed following DNA damage. We performed an in silico analysis of RNA-Seq data from wild-type, ddrR, and umuDAb mutant strains to examine the expression levels of genes repressed after DNA damage. We used two different algorithms to analyze Cuffnorm- and HTSeq normalized gene counts. This analysis revealed nineteen (CuffDiff) or twenty-nine (DESeq2) genes repressed in wild-type cells that were derepressed after DNA damage in either ...
Research, Testing, And Validation Of Small Satellite Designs: Cubesats, Cansats, Pocketqubes, And Femtosatellites, Jason A. Combs, Jose L. Garcia
Research, Testing, And Validation Of Small Satellite Designs: Cubesats, Cansats, Pocketqubes, And Femtosatellites, Jason A. Combs, Jose L. Garcia
2022 Celebration of Student Scholarship - Poster Presentations
The focus of this project, through research and testing, was to prepare various elements of small satellite experiential education curriculum. Rather than be constrained to the expensive and long-term timelines of a larger satellites, students can assemble, test, and operate various classes of small satellites in a valuable learning experience that will prepare them to work on larger projects. The true benefit of a PocketQube, CanSat, or femtosatellite is that they can be built with less money, less experience, and less long-term commitment while providing a scaled version of the real-life satellite development process that will engage and inspire students ...
Fungi In A Warmer World: Fungal Diversity In The Tropical Miocene Climate Optimum Of The Clarkia Region Of Idaho, Usa, J. Fairchild, L. Lennex-Stone, T. Horsfall, L. Tarlton, S. Jones, A. Caldwell, O. Vanderespt, L. Smallwood, A. Patel, J. O'Keefe, I. Romero, N. Nunnez Otano, M. Pound
Fungi In A Warmer World: Fungal Diversity In The Tropical Miocene Climate Optimum Of The Clarkia Region Of Idaho, Usa, J. Fairchild, L. Lennex-Stone, T. Horsfall, L. Tarlton, S. Jones, A. Caldwell, O. Vanderespt, L. Smallwood, A. Patel, J. O'Keefe, I. Romero, N. Nunnez Otano, M. Pound
2022 Celebration of Student Scholarship - Poster Presentations
A knowledge gap associated with how fungal communities change in response to climate was identified in the 2018 State of the World Fungi report (Willis, 2018). While it is virtually impossible to test in the present, fungal assemblage changes can be studied in sediments from a warmer-than-present period such as the Miocene Climate Optimum (MCO) (Romero et al. 2021; O’Keefe 2017). The Fungi in a Warmer World project aims to generate and analyze a global-scale data set of fungal biodiversity, ecology, and associated flora from MCO sediments. This dataset will be used to model past fungal assemblage changes across ...
Genes Involved In Cell Division In Acinetobacter Baumannii Are Coregulated By Umudab And Ddrr, Belinda Candra, Xiaohong Li, Eric Rouchka, Deborah Cook, Janelle Hare
Genes Involved In Cell Division In Acinetobacter Baumannii Are Coregulated By Umudab And Ddrr, Belinda Candra, Xiaohong Li, Eric Rouchka, Deborah Cook, Janelle Hare
2022 Celebration of Student Scholarship - Poster Presentations
In the presence of DNA damage, the multi-drug resistant bacteria Acinetobacter baumannii employs the proteins UmuDAb and DdrR to repress the expression of error-prone polymerases.
Novel Gain-Of-Function Mutations In The Telomerase Rna Of Saccharomyces Cerevisiae, Keenan Conley, Madison Frazier, Melissa Mefford
Novel Gain-Of-Function Mutations In The Telomerase Rna Of Saccharomyces Cerevisiae, Keenan Conley, Madison Frazier, Melissa Mefford
2022 Celebration of Student Scholarship - Poster Presentations
Yeast are eukaryotic organisms that contain liner chromosomes. At the ends of these chromosomes, there are special regions known as telomeres. Telomeres are composed of non-coding nucleotides that serve to protect the vital coding DNA found throughout the rest of the chromosome. During the process of DNA replication, however, telomeres become progressively shorter which can lead to cellular senescence. To solve this issue, yeast express the enzyme telomerase. Telomerase is composed of a telomerase reverse transcriptase protein (TERT) and telomerase RNA (TLC1) in yeast. When telomeres become too short, telomerase extends telomeres by adding to the 3’ overhang. Telomeres shorten ...
Seasonal Abundance And Sex Ratio Of Earwigflies (Merope Tuber) In Eastern Kentucky, Abigal Fagan, Sean O'Keefe
Seasonal Abundance And Sex Ratio Of Earwigflies (Merope Tuber) In Eastern Kentucky, Abigal Fagan, Sean O'Keefe
2022 Celebration of Student Scholarship - Poster Presentations
The earwigfly is a rarely seen insect in the family of scorpionflies. There are three species total, one in Brazil, one in Australia, and the third (Merope tuber), widespread throughout the eastern United states. In a 1984 study, Chris Maier collected 69 earwigflies between 1977 and 1982 from New England. Most of these were collected in July using sticky traps. He collected 43 females and 26 males (sex ratio 2.4:1). In a 2014 study, Skvarla, Hartshorn, and Dowling collected 77 earwigflies from Arkansas, mostly in August using malaise traps, pan traps, Lindgren funnels, and pitfall traps. They collected ...
College Students’ Knowledge And Use Of Herbal Supplements: Informed Decision, Health Risk, Or Marketing Ploy?, Jillian Wallshield, Wilson Gonzalez-Espada
College Students’ Knowledge And Use Of Herbal Supplements: Informed Decision, Health Risk, Or Marketing Ploy?, Jillian Wallshield, Wilson Gonzalez-Espada
2022 Celebration of Student Scholarship - Poster Presentations
The purpose of this study is to better understand the extent to which college students from Eastern Kentucky use Herbal Supplements (HS). The research questions for this study were:
• How do the participants find out about HS?
• How helpful do participants perceive the HS they take to be?
• What misconceptions do participants have regarding HS?
• Does a positive or negative attitude towards science change the usage rate of HS?
Drone Mapping On Eagle Lake Dam, Nathan Sparks, Timothy Hare
Drone Mapping On Eagle Lake Dam, Nathan Sparks, Timothy Hare
2022 Celebration of Student Scholarship - Poster Presentations
The Eagle Lake Dam is an iconic part of Morehead State’s campus. It can be seen from much of campus and serves as one of the best views around. It is also the single most important structure on campus. A significant percentage of the campus would be damaged or impaired, as well as many people would be endangered if the dam failed. Hence, I am starting a multi-person and multi-year initiative to monitor Eagle Lake Dam using UAV and remote sensing technology. I hope to have teams make annual 3D models of Eagle Lake Dam over the next several ...