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Articles 1 - 13 of 13
Full-Text Articles in Engineering
Applications Of Lean In Construction: Benefits From Using The Last Planner System, Mohsin Shareef Al Taie
Applications Of Lean In Construction: Benefits From Using The Last Planner System, Mohsin Shareef Al Taie
Doctoral Dissertations and Projects
Question: What are the benefits of using the Last Planner System in commercial construction projects in areas with high disruption, e.g. the Civil War in Iraq from 2005-2017. Purpose: The purpose of this research is to explore the benefits of using the Last Planner System with respect to the key project metrics of cost, safety, quality, and time performance in projects operating in highly disruptive environments. Very few qualitative studies have been done on the Last Planner System in commercial construction and none specifically studying work in areas of high disruption. Research Method: The study utilizes qualitative methodology with a …
Peer Mentoring And Test Anxiety In Collegiate Aeronautics Students: An Integrative Review, Angelo R. Cosentino
Peer Mentoring And Test Anxiety In Collegiate Aeronautics Students: An Integrative Review, Angelo R. Cosentino
Senior Honors Theses
An integrative review was conducted to lay the foundation for further research focusing on the use of peer mentoring as a tool to reduce the anxiety pilots and mechanics feel for their oral and practical exams to increase student safety and performance. Research on performance anxiety in competitive sports, music performance anxiety, and academic test anxiety showed how anxiety levels relate to athlete and student performance. Feedback surveys from peer mentoring programs identified increased self-efficacy, increased student retention, and a better understanding of the applicable examination as possible benefits of such mentoring programs. I determined the proposed research question was …
Student Perceptions Of Meaningful Learning, Behaviors Towards Learning Experiences, And Academic Performance In Aeronautical Courses: A Quantitative Research Study, Andrea Lynn Smith
Student Perceptions Of Meaningful Learning, Behaviors Towards Learning Experiences, And Academic Performance In Aeronautical Courses: A Quantitative Research Study, Andrea Lynn Smith
Doctoral Dissertations and Projects
Current literature on the predictive correlation between a student’s perceived course value and their end-of-course results utilizing the Course Valuing Inventory (Nehari & Bender, 1978) has not been studied in aeronautics education. While research investigating various attributes of academic success exists, quantitative studies specifically addressing predictive variables of course success related to end-of-course grades in aeronautics education do not exist. Given the results of quantitative data, aeronautics academia can strategically implement specific variables into course planning and designing to create academic content that appeals to aeronautic students. The purpose of this quantitative, predictive correlational study is to examine the predictive …
Study Of Urethane Double-Coated Nylon Membranes For Fluid-Storage Applications, Micah Austin Howell
Study Of Urethane Double-Coated Nylon Membranes For Fluid-Storage Applications, Micah Austin Howell
Masters Theses
Polymer-coated fabrics are used for many fuel and water storage applications, such as in U.S. military field operations. Urethane-double-coated nylon (UDCN) is one such material used in collapsible fluid storage tanks. Research into the mechanical properties of UDCN membranes under different environmental conditions is necessary for substantiating its current operations as well as developing new technologies. Novel modular, closed-loop and scalable pumped-storage hydropower (PSH) systems are one technology that could use UDCN membrane tanks in order to mitigate large costs, risks, environmental impacts, and time-for deployment associated with PSH system construction due to their modular, closed-loop technology. This study focuses …
Modeling And Simulating Brain Damage From Football Helmet Impacts, Tate Russell Fonville
Modeling And Simulating Brain Damage From Football Helmet Impacts, Tate Russell Fonville
Doctoral Dissertations and Projects
The objective of this research was to present a model for brain damage to investigate the head’s response to mechanical loadings. A Finite Element (FE) head and brain mesh used throughout this dissertation was constructed from Magnetic Resonance Imaging (MRI) scan data of one of the authors and validated in previous research. A computational modal analysis was first conducted on the whole head and an isolated brain to identify the resonant frequencies, mode shapes, and locations. A physics-based Internal State Variable (ISV) constitutive model for polymers was modified to include damage in the form of pore growth. The brain damage …
Modelling And Development Of An Automated Ldpe Autoclave Reactor In Cfd For Revealing Ethylene Hot Spots, Eric Turman
Modelling And Development Of An Automated Ldpe Autoclave Reactor In Cfd For Revealing Ethylene Hot Spots, Eric Turman
Masters Theses
Computational Fluid Dynamics (CFD) was employed to develop a rigorous model of a low-density polyethylene (LDPE) autoclave reactor. Different numerical settings within the solver were evaluated to minimize false diffusion and to reflect the sensitive heat generation taking place during free radical polymerization. The rigorous CFD model employed reaction kinetics, Proportional Integral Derivative (PID) automated thermal management, and a rotating stirrer shaft. Validation was carried out to determine the sensitivity to time-step size, turbulence model, and grid resolution. Data were compared to an industrial scale plant autoclave to guide the development of CFD. Time-step independence was confirmed by comparing the …
Design Considerations Of A Magnus Effect Flettner Rotorcraft, Benjamin Cook
Design Considerations Of A Magnus Effect Flettner Rotorcraft, Benjamin Cook
Senior Honors Theses
Airfoils have dominated the development of aircraft since the Wright brothers’ first flight. There are very few (if any) functional alternative mechanisms for heavier-than-air flight. However, in exploring the Magnus effect phenomenon applied to Flettner rotors in a rotorcraft configuration, a new and significantly underdeveloped method of heavier-than-air flight may be accomplished. Considering the aerodynamic context of the Magnus effect and its implementation in existing applications, this research principally concerns a single proposed mechanism and its design, viability, and lift-surface optimization. The proposed mechanism employs at least two 180o offset rotating cylinders rotating about a central vertical axis, like …
Assessing Security Risks With The Internet Of Things, Faith Mosemann
Assessing Security Risks With The Internet Of Things, Faith Mosemann
Senior Honors Theses
For my honors thesis I have decided to study the security risks associated with the Internet of Things (IoT) and possible ways to secure them. I will focus on how corporate, and individuals use IoT devices and the security risks that come with their implementation. In my research, I found out that IoT gadgets tend to go unnoticed as a checkpoint for vulnerability. For example, often personal IoT devices tend to have the default username and password issued from the factory that a hacker could easily find through Google. IoT devices need security just as much as computers or servers …
The Music Bluetooth Controller: An Intersection Between Technology And Music, Lydia Wu
The Music Bluetooth Controller: An Intersection Between Technology And Music, Lydia Wu
Senior Honors Theses
The modern musician faces a new challenge: how can technology be used to enhance a performance? This thesis documents the development of a Bluetooth remote controller that will aid today’s performing musicians by interacting with a digital display (e.g., an iPad) to flip musical score pages remotely. At its core, while mimicking a Bluetooth pedal (the current industry standard), this device attaches to the musician’s hand. In its pilot stages, the device has been referred to “MBC” (Music Bluetooth Controller).
An Analysis Of Voter Fraud And Proposed Methodology For Recording Numerical Anomalies In Polling Data, Harrison Granger
An Analysis Of Voter Fraud And Proposed Methodology For Recording Numerical Anomalies In Polling Data, Harrison Granger
Senior Honors Theses
Debate surrounding the security and accessibility of voting procedures in the United States has caused the matter of electoral integrity to become a point of contention. Confusion surrounding the Federal government's response to allegations of fraud has decreased the population’s trust in the government and increased voter apathy. The context for an empirical methodology is established with a history of e-voting, voter security, and voter-fraud sensationalism. This research methodology is then described and implemented with a software application that analyzes the proximity of voters to polling locations to study the way people vote and how fraud may be committed at …
Exploring Water Filtration Methods For Implementation In Rural Mozambique, Cole Glasson
Exploring Water Filtration Methods For Implementation In Rural Mozambique, Cole Glasson
Senior Honors Theses
Of Mozambicans living in rural areas, nearly two-thirds are without access to clean drinking water sources, leading to waterborne diseases and diarrhea. Thus, a great need exists for an effective and sustainable water treatment solution for rural Mozambicans. Boiling, solar disinfection, and membrane-based processes are analyzed with respect to their effectiveness and economic sustainability in an attempt to propose a solution to those living in rural Mozambique. The most sustainable option is membrane-based processes, with two particular systems showing the most promise: Skyhydrant™ and LifeStraw®. These two ultrafiltration system are extremely effective at retaining almost all forms of bacterial and …
The Traveling Salesman Problem: An Analysis And Comparison Of Metaheuristics And Algorithms, Mason Helmick
The Traveling Salesman Problem: An Analysis And Comparison Of Metaheuristics And Algorithms, Mason Helmick
Senior Honors Theses
One of the most investigated topics in operations research is the Traveling Salesman Problem (TSP) and the algorithms that can be used to solve it. Despite its relatively simple formulation, its computational difficulty keeps it and potential solution methods at the forefront of current research. This paper defines and analyzes numerous proposed solutions to the TSP in order to facilitate understanding of the problem. Additionally, the efficiencies of different heuristics are studied and compared to the aforementioned algorithms’ accuracy, as a quick algorithm is often formulated at the expense of an exact solution.
Integrating Temperature Dependence Into A Microstructure-Sensitive Fatigue Model For Titanium Alloys, Jared Michael Darius
Integrating Temperature Dependence Into A Microstructure-Sensitive Fatigue Model For Titanium Alloys, Jared Michael Darius
Masters Theses
This work seeks to integrate temperature dependence into a microstructure-sensitive fatigue model for titanium alloys produced by both extrusion and electron beam melting (EBM) additive manufacturing, revising and enhancing the MultiStage Fatigue (MSF) model as the foundational model framework. Traditional fatigue modeling has required design engineers to conservatively use a lower-bound estimate of fatigue life predictions given a statistically significant spread of experimental data that can span up to two or sometimes three orders of magnitude for a given test condition. This variation in fatigue data has since been accounted for with the advent of the MSF model, linking individual …