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Articles 1 - 30 of 164
Full-Text Articles in Engineering
Incorporating Safety Excellence Into Urban Air Mobility (Uam): Insights From Commercial Aviation, Rotorcraft, And Unmanned Aerial Systems (Uas), Seyoung "Evie" Jang
Incorporating Safety Excellence Into Urban Air Mobility (Uam): Insights From Commercial Aviation, Rotorcraft, And Unmanned Aerial Systems (Uas), Seyoung "Evie" Jang
Senior Honors Theses
This paper focused on safety considerations in Urban Air Mobility (UAM) through a cross-industry examination of commercial aviation, rotorcraft, and unmanned aerial systems (UAS). Although UAM promises transformative benefits, there are safety concerns remaining. Based on the Federal Aviation Administration (FAA)’s Concept of Operations (ConOps), the literature review explained the fundamental concepts of UAM. In commercial aviation, regulatory framework, pilot training and certification, vehicle design and maintenance, and emergency response planning are emphasized. For rotorcraft, safety requirements for vertical flight, collision avoidance systems, heliport standards, and weather adaptability are crucial. Leveraging UAS advancements, the study suggested autonomous systems, sense-and-avoid technology, …
Of Towers And Philosophy: How Interdisciplinarity Nurtures And Expands Capacity, Mario Calabretta
Of Towers And Philosophy: How Interdisciplinarity Nurtures And Expands Capacity, Mario Calabretta
NEXUS: The Liberty Journal of Interdisciplinary Studies
No abstract provided.
Exploring 21st Century Learning In Virginia Secondary School Technology And Engineering Classrooms: A Hermeneutic Phenomenological Study, George Nicholas Cornwell
Exploring 21st Century Learning In Virginia Secondary School Technology And Engineering Classrooms: A Hermeneutic Phenomenological Study, George Nicholas Cornwell
Doctoral Dissertations and Projects
The purpose of this phenomenological study was to examine how integrative STEM teachers utilize the Standards for Technological and Engineering Literacy (STEL) to foster and assess 21st-century learning in technology and engineering classes at multiple Virginia public secondary schools. The theory guiding this study was Kolb’s experiential learning theory, which integrates nine learning theories into an innovative cyclical learning process that is like the engineering design loop. This hermeneutic phenomenology included 15 Virginia technology and engineering schoolteachers (Grades 6-12) who purposefully taught multiple academic disciplines and utilized the eight practices of the STEL in the context of their curriculum to …
A Novel Brain Computer Interface Design, Steven Vogan
A Novel Brain Computer Interface Design, Steven Vogan
Senior Honors Theses
A brain computer interface (BCI) is a system which connects neural signals to a computer system. They have been used for controlling systems including robotics, on-screen computer control such as mouse movement, typing, and synthesizing audio signals. Invasive, or implanted, systems are often long-term medical solutions, or used for research where very clear signal is required. Non-invasive systems usually rely on exterior signals gathered through a headset using one or more electrode sensors. These signals are composed of sums of neuron activation potentials from brain activity and can be used to determine particular aspects of brain function. All BCIs rely …
An Embedded Case Study To Understand The Barriers To Cultural Progression In Aviation, Scott Phillip Trepinski
An Embedded Case Study To Understand The Barriers To Cultural Progression In Aviation, Scott Phillip Trepinski
Doctoral Dissertations and Projects
The purpose of this qualitative, revelatory, embedded case study was to understand the barriers to cultural progression aviation leaders experience within airlines based in the United States. The study was guided by the research question: What can be learned about the barriers hindering the progression of safety culture within the aviation industry? The research design used a single embedded case study model utilizing participants responsible for managing, participating in, and designing programs and policies associated with an organization's safety management system. The study's theoretical framework was the cognitive dissonance theory and the dialogue-supported organizational learning theory. Data was collected utilizing …
Meeting The Psychological Needs Of Astronauts In The Flourishing Human Spaceflight Frontier: The Case For Astronaut-Trained Psychologists, Skylar Jordan Laham
Meeting The Psychological Needs Of Astronauts In The Flourishing Human Spaceflight Frontier: The Case For Astronaut-Trained Psychologists, Skylar Jordan Laham
Doctoral Dissertations and Projects
Space psychology (i.e., astronaut psychological counseling and support) has remained largely unchanged since the onset of long-duration low-Earth-orbit (LEO) human spaceflight missions, with teletherapy utilized as the primary means of psychotherapy delivery. However, with NASA’s plans to establish a permanent human presence on the Moon, the suitability of teletherapy – as well as astronaut-trained psychologists, an alternative space psychology method suggested for human spaceflight beyond LEO – must be ascertained. The aim of this novel space psychology investigation was to identify and compare the effectiveness of three astronaut psychotherapy treatment conditions (i.e., teletherapy with a 2 second Earth to LEO …
A New Atomization Paradigm: Smart Wave-Augmented Varicose Explosions, Daniel Mason Wilson
A New Atomization Paradigm: Smart Wave-Augmented Varicose Explosions, Daniel Mason Wilson
Doctoral Dissertations and Projects
The characterization of viscous, non-Newtonian slurry heating and atomization by means of internal wave excitation is presented for a twin-fluid injector. We detail mechanisms that enhance their disintegration in a novel process called “Wave-Augmented Varicose Explosions” (WAVE). Atomization of such fluids is challenging, especially at low gas-liquid mass ratios. Droplet production is further complicated when slurry viscosity varies widely; if viscosity levels are too high, atomization quality suffers, and an undesirable pressure drop restricts the flow. To mitigate, we introduce and demonstrate “Smart” atomization, a novel implementation of simultaneous proportional integral derivative (PID) control algorithms to accommodate dynamically and extensively …
Covenant Persuasion Lead To Constitutionalism – Neither Was Invented, Joseph Livni
Covenant Persuasion Lead To Constitutionalism – Neither Was Invented, Joseph Livni
Helm's School of Government Conference - American Revival: Citizenship & Virtue
Constitutionalism is a conviction shared by people that a government must act in compliance with a dominant charter. So is covenantal persuasion. The covenant reflects statutes and traditions etched in a living covenantal practice. The practice cannot exist without the persuasion and the persuasion cannot exist without the practice. Elazar was one of the most prolific scholars of the covenantal model. There is one point were the paper diverges from Elazar. The paper discusses a mathematical model and other studies of the covenant practice demonstrating that such a practice involves a multitude of simultaneous vital conditions. That led to the …
The Rapid Increase Of Ransomware Attacks Over The 21st Century And Mitigation Strategies To Prevent Them From Arising, Sanjay Jacob
The Rapid Increase Of Ransomware Attacks Over The 21st Century And Mitigation Strategies To Prevent Them From Arising, Sanjay Jacob
Senior Honors Theses
Cyber-attacks have continued to become more common throughout the past century as more people are exposed to the Internet. Every year, various studies, reports, and scholarly research is done to emphasis the rapid increase of attacks. In this honors thesis, the student sought to gather further information about the rise of ransomware attacks, various cyber threats, discuss the psychological manipulation that exist, and provided the reader with an ethical complement of cyber-attacks. Additionally, case studies from previous research have been analyzed and mitigation strategies have been explained to provide the reader with practical application. This research emphasizes in on key …
Effect On Focusing Fields By Ferromagnetic Cell Cores In Linear Induction Accelerators, Cooper Guillaume
Effect On Focusing Fields By Ferromagnetic Cell Cores In Linear Induction Accelerators, Cooper Guillaume
Senior Honors Theses
In the Los Alamos National Laboratories DARHT facility, there are two perpendicular linear induction accelerators, LIAs. The LIAs’ solenoids produce magnetic fields which focus the electron beam. Simultaneously, the accelerating pulse creates a magnetic field. These two field intensities act upon a ferromagnetic material in the cells to enhance magnetic flux density. Due to the nonlinearity of the material, this flux density will reach a saturation point. In turn, the magnetic field intensity of the axial solenoidal magnetic field will be affected and slightly altered. The width of the electron beam will increase, causing a decrease in effectiveness. Through simulation, …
The Impact Of Flight On Cabin Crew Wellness: A Literature Review, Ashleigh Roderick
The Impact Of Flight On Cabin Crew Wellness: A Literature Review, Ashleigh Roderick
Senior Honors Theses
Since its conception in 1903, aviation has captivated the attention of people across the globe and has been utilized in many sectors of society. Aviation related occupations pose a unique set of risks to those working in the field, health risks being one of the most prominent. Cancer, cardiovascular disease, musculoskeletal ailments, and genetic damage have all been studied as potential consequences of working in the aviation industry, as some studies indicate a higher prevalence of these issues in aviation employees. Apart from physiological issues, mental health issues have also been observed in those working in aviation. Mental health issues …
The Development And Use Of The Probabilistic Financial Decision Model For A Company Expansion, Elizabeth Wiese
The Development And Use Of The Probabilistic Financial Decision Model For A Company Expansion, Elizabeth Wiese
Senior Honors Theses
In the United States, companies are expanding constantly. However, in an industrial equipment dealership expanding into a new state, it is important to understand the industry, new market, and costs associated with expanding. With using financial statements of data-backed percentages for growth, research seeks to set up a financial model to see if expansion for an industrial equipment dealership into the state of North Carolina will be a financially wise decision. Wesley Worldwide, an industrial equipment dealership, is moving forward with the investment of expanding into North Carolina. However, it is vital to understand the financial predictions for profit return …
An Exploration Of The Application Of Desalination In Disaster Relief, Emma Sager
An Exploration Of The Application Of Desalination In Disaster Relief, Emma Sager
Senior Honors Theses
This paper aims to explore the application of small-scale desalination systems to provide clean water in the wake of marine natural disasters. A lack of clean water is a devastating impact of many natural disasters. Desalination technologies, both thermal and membrane, show potential for being scaled down and self-powered by renewable energy. Desalination can transform ocean water and contaminated drinking water with a high salt content into drinkable, usable water. While these techniques are not perfected, and the solution to a need for clean water is multifaceted, desalination shows potential. Through further research and ever-advancing technology, small-scale desalination could develop …
Microstructure Characterization Of Az31 Under Strain, Aaron Beckley
Microstructure Characterization Of Az31 Under Strain, Aaron Beckley
Liberty University Research Week
Undergraduate
Three Minute Thesis
The Predicting And Modelling Of Commonly Used Structural Steels Under Cyclic Loading, Adam Maroni
The Predicting And Modelling Of Commonly Used Structural Steels Under Cyclic Loading, Adam Maroni
Liberty University Research Week
Undergraduate
Three Minute Thesis
Design Optimization Of Shot Peening Process With Multiscale Modeling Of Viscoplasticity With Internal State Variable Codes, Joby M. Anthony Iii
Design Optimization Of Shot Peening Process With Multiscale Modeling Of Viscoplasticity With Internal State Variable Codes, Joby M. Anthony Iii
Liberty University Research Week
Graduate
Three Minute Thesis
Comparison Of Internal Mixing Physics For Two Types Of Non-Invasive Respiratory Therapy, Robert Kacinski
Comparison Of Internal Mixing Physics For Two Types Of Non-Invasive Respiratory Therapy, Robert Kacinski
Liberty University Research Week
Graduate
Three Minute Thesis
Hot Spots: Quantifying Risk For Reactor Failure And A Measure For The Validity Of The Lumped Capacitance Assumption, Elijah Yoder
Hot Spots: Quantifying Risk For Reactor Failure And A Measure For The Validity Of The Lumped Capacitance Assumption, Elijah Yoder
Liberty University Research Week
Graduate
Three Minute Thesis
Undersubscription: An Underutilized Factor In High-Performance Computing, Reid Prichard
Undersubscription: An Underutilized Factor In High-Performance Computing, Reid Prichard
Liberty University Research Week
Graduate
Applied
Development Of Graphene Oxide/Carbon Nanofiber Hybrid Structure, Greta Wilkins
Development Of Graphene Oxide/Carbon Nanofiber Hybrid Structure, Greta Wilkins
Liberty University Research Week
Undergraduate
Applied
Exploding Banana Puree, Daniel Wilson
Exploding Banana Puree, Daniel Wilson
Liberty University Research Week
Graduate
Applied
Spectral Fatigue Behavior Of Az31 Magnesium During Variable Loading, Manuel Figueroa Gomez, Daniel Kenney
Spectral Fatigue Behavior Of Az31 Magnesium During Variable Loading, Manuel Figueroa Gomez, Daniel Kenney
Liberty University Research Week
Undergraduate
Applied
Drone Maneuverability Around Built And Natural Structures: Phase I, Fabrication And Testing Of Mock Environments, Hannah Deter
Drone Maneuverability Around Built And Natural Structures: Phase I, Fabrication And Testing Of Mock Environments, Hannah Deter
Liberty University Research Week
Undergraduate
Applied
Transverse Third-Damper To Improver Suspension Systems For In-Wheel Motor Driven Electric Vehicles, Kayden Bingham, Michael Debard
Transverse Third-Damper To Improver Suspension Systems For In-Wheel Motor Driven Electric Vehicles, Kayden Bingham, Michael Debard
Liberty University Research Week
Undergraduate
Applied
Advancing Real-Time Brain Computer Interface With Electroencephalography, Nathan Child
Advancing Real-Time Brain Computer Interface With Electroencephalography, Nathan Child
Liberty University Research Week
Undergraduate
Applied
Mechanical Properties Of Composites Containing Exfoliated-Graphite/Epoxy Sensors, Quinn Reed
Mechanical Properties Of Composites Containing Exfoliated-Graphite/Epoxy Sensors, Quinn Reed
Liberty University Research Week
Undergraduate
Applied
A Molecular Dynamics Study On Properties Of Poly Dimethyl Siloxane With Silica Nanoparticles For Polymer Nanocomposites: Part I, Modeling And Preliminary Simulations, Joshua Ingram
Liberty University Research Week
Undergraduate
Applied
Design Of A Manufacturing Process For The Fabrication And Testing Of Electromechanical Transduction In Stretchable Electronics, Matthew Marcinko
Design Of A Manufacturing Process For The Fabrication And Testing Of Electromechanical Transduction In Stretchable Electronics, Matthew Marcinko
Liberty University Research Week
Undergraduate
Applied
The Effects Of Energy Drinks On Muscles Using Electromyography (Emg) Sensors- A Work In Progress, Molly Elder
The Effects Of Energy Drinks On Muscles Using Electromyography (Emg) Sensors- A Work In Progress, Molly Elder
Liberty University Research Week
Undergraduate
Applied
Laboratory Evaluation Of The Geotechnical Properties Of Biochar-Amended Clay, Brett Natelborg
Laboratory Evaluation Of The Geotechnical Properties Of Biochar-Amended Clay, Brett Natelborg
Senior Honors Theses
The upkeep and rehabilitation of infrastructure damage related to the shrinking and swelling of expansive soils have cost the United States billions of dollars. Biochar, an innovative and eco-friendly additive proven to improve soil permeability, nutrient retention, and mechanical properties, is investigated as an additive to Mississippi chalk. The index properties of the chalk were determined and used to characterize its nature. The geotechnical engineering properties of the chalk amended with 6% and 12% biochar were evaluated via the Proctor compaction, compression, and direct shear tests. Results were analyzed to make comparative remarks on how the behavior of the chalk …