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Full-Text Articles in Engineering

Impact Of Chain Architecture On The Thickness Dependence Of Physical Aging Rate Of Thin Polystyrene Films, Gregory Brown, Elizabeth Lewis, Bryan D. Vogt Jan 2020

Impact Of Chain Architecture On The Thickness Dependence Of Physical Aging Rate Of Thin Polystyrene Films, Gregory Brown, Elizabeth Lewis, Bryan D. Vogt

Honors Research Projects

The dynamics of polymer thin films have been demonstrated to be significantly altered from the bulk, but the origins of such differences are not well defined. In this work, we seek to understand the differences in the structural dynamics (or physical aging) of polystyrene (PS) through branching and other well defined architectures (comb and centipede). The aging dynamics of ultrathin films (< 30 nm) differ from relatively thick films (100-150nm) with linear PS thin films aging more rapidly than the relatively “bulk-like” thick films. Ellipsometric measurements are used to characterize the physical aging rate of the films. The change in film thickness and refractive index as the films are held below the glass transition temperature (Tg) provides a simple measure of the physical aging. In this study, four different architectures (linear, comb, 4 arm star, and centipede) will be investigated. For each PS architecture, the aging rate will be determined for film thickness ranging ...


Smart Iot Sprinkler System, Galib F. Rahman Dec 2018

Smart Iot Sprinkler System, Galib F. Rahman

Publications and Research

The average family spends more than $1000 in water costs per year. One-way water is commonly wasted in many households is via inefficient sprinkler systems for lawns. Current technology has enabled the development of automatic sprinkler systems, which can be preconfigured to operate at desired times of day and intervals. Although these systems may reduce the amount of water utilized overall, they are not weather forecast aware. In situations when rainfall is upcoming the systems still water the lawn. In this project, we plan to implement a smart sprinkler system that has full awareness of upcoming weather and take account ...


Automated Control System For Photo-Bioreactor, Madankrishna Acharya Nov 2018

Automated Control System For Photo-Bioreactor, Madankrishna Acharya

Posters-at-the-Capitol

At the University of Kentucky Center for Applied Energy Research, recent efforts have been made to optimize and reduce the cost of a unit designed to control an automated photobioreactor system in which microalgae is grown to reduce CO2 emissions. In contrast with a previously used system based on a compactRIO controller and NI LabVIEW software, a new optimized version utilizes an inexpensive Beagle Bone panel as a microcontroller that can be programmed through the use of Python software. Notably, the cost of the new control system was 1/10th of the price of the previous unit.


Catalytic Deoxygenation Of Model And Realistic Feeds To Fuel-Like Hydrocarbons Over Supported Nickel-Copper Catalysts, Deyshon Ward, Kazi Javed Nov 2018

Catalytic Deoxygenation Of Model And Realistic Feeds To Fuel-Like Hydrocarbons Over Supported Nickel-Copper Catalysts, Deyshon Ward, Kazi Javed

Posters-at-the-Capitol

The goal was to make a renewable fuel by using catalysts to remove oxygen molecules from fats. This is a current issue that society faces today because nonrenewable fossil fuels hurt the environment more than they help it. There are two components that make up a heterogeneous catalyst, a support and a reduced metal active phase. The active metal phases Nickel, Palladium, Platinum have been studied in the past on an alumina and carbon supports. We were investigating other supports using Nickel as the active phase component to determine the effect the support has on the catalyst removing oxygen of ...


Enhancing Your Intelligence Agency Information Resource Iq: Pt. 4: National Geospatial Intelligence Agency (Ngia), National Intelligence University (Niu), And National Reconnaissance Office (Nro), Bert Chapman Nov 2018

Enhancing Your Intelligence Agency Information Resource Iq: Pt. 4: National Geospatial Intelligence Agency (Ngia), National Intelligence University (Niu), And National Reconnaissance Office (Nro), Bert Chapman

Libraries Faculty and Staff Presentations

Webinar presentation on publicly accessible information resources produced by the U.S. National Geospatial Intelligence Agency (NGIA), National Intelligence University (NIU), and National Reconnaissance Office. Places significant emphasis on missions of these agencies, their historical accomplishments, coverage of their educational activity, and information on the technologies they have used and are currently using to fulfill their institutional objectives.


Julia Language Ephemeris And Physical Constants Reader For Solar System Bodies, Julia Mihaylov, Renee Spear Oct 2018

Julia Language Ephemeris And Physical Constants Reader For Solar System Bodies, Julia Mihaylov, Renee Spear

Undergraduate Research Symposium - Prescott

This presentation was the forerunner a second paper by the authors for the AAS/AIAA conference in January 2019, and is not available for download. For a description of the first presentation, see the authors' Discovery Day 2018 - Presentation.

Publicly released in 2012, the Julia language is a relatively new, open source dynamic language. One major benefit of Julia is its combined capabilities of both dynamic and static coding languages. It nearly matches the computational efficiency of static languages, such as FORTRAN or C, and exceeds that of dynamic languages, such as MATLAB or Python. Additionally, unlike Python, Julia was ...


Design Of A Heavy Lift Rc Aircraft - Society Of Automotive Engineers (Sae) Aero Design® West Competition Team, Jiyoung Hwang, Phillip Nielsen Oct 2018

Design Of A Heavy Lift Rc Aircraft - Society Of Automotive Engineers (Sae) Aero Design® West Competition Team, Jiyoung Hwang, Phillip Nielsen

Undergraduate Research Symposium - Prescott

The SAE Aero West design competition challenges undergraduate students to design and build an RC aircraft that will fly with the maximum number of passengers and luggage possible. The ERAU SAE team focuses on simulation-based research and project methods such as Computational Fluid Dynamics (CFD), aircraft optimization, and Finite Element Analysis (FEA). Designing and manufacturing a well-designed heavy lift aircraft and competing with other groups will give experience in solving engineering problems. The Aerodynamics team is currently focusing on score optimization, aircraft performance and configuration. The propulsion team is constructing a test rig to test various propellers and motors to ...


Design Of A Thrust Stand For Low Power Electric Propulsion, John Norton Oct 2018

Design Of A Thrust Stand For Low Power Electric Propulsion, John Norton

Undergraduate Research Symposium - Prescott

Electric propulsion (EP) has been gaining popularity due to the high efficiencies and specific impulse. These thrusters all follow the same general idea of converting stored electrical potential energy to kinetic energy for the craft; typically, this is accomplished by the acceleration of gas particles through three main methods, electrothermal, electromagnetic, and/or electrostatic. The specific impulse is the change of momentum per unit of propellant expended. While chemical propulsion produces a high change in momentum, they use much more propellant mass than an electric thruster. EP devices will typically produce very low thrust, which makes it difficult to measure ...


Fly This Sim! Basic Aircrew Training Device (Batd) Impact On Student Progression And Retention, Jordan Stephens Oct 2018

Fly This Sim! Basic Aircrew Training Device (Batd) Impact On Student Progression And Retention, Jordan Stephens

Undergraduate Research Symposium - Prescott

The researchers’ goal was to design a project implemented in Fall 2018 which studies the effect of using a Helicopter Basic Aircrew Training Device (BATD) on helicopter flight student progression and retention. Measuring the efficacy of the BATD will allow ERAU to determine the need for purchase of additional BATDs in the future. The design included the methodology and preparation of all of the materials required to undertake the Fall project. This included a student focus group design, student survey design, student progress tracker, BATD utilization tracker, data analysis plan, design and testing of the practical skills to be practiced ...


Developing High Performance Grid Computing Systems On A Budget, Forrest Mobley Oct 2018

Developing High Performance Grid Computing Systems On A Budget, Forrest Mobley

Undergraduate Research Symposium - Prescott

High performance grid computing systems are essential for today’s engineering and research projects, as they make certain impossibilities possible, and save time and money as well. However, these supercomputers can cost upwards of a hundred million dollars and require large amounts of space and energy to keep, making them all but inaccessible to small engineering firms and universities. As most of these institutions do not require the massive level of computing power offered by these large grid computers, small scale versions are often built, with various setups. The purpose of this project was to set up a new small ...


Project Janus, Theodore J. Lilyeblade, Jacqueline Worley, Garrison Bybee Oct 2018

Project Janus, Theodore J. Lilyeblade, Jacqueline Worley, Garrison Bybee

Undergraduate Research Symposium - Prescott

The development goal of Project Janus is to design, fabricate, and program two robotic heads that can serve as animatronic chatbots. Each robotic head will be equipped with two USB webcams, a mono speaker within the robot’s mouth, and a pair of microphones. Additionally, each robotic head will feature a three degree of freedom neck, a one degree-of-freedom jaw, and a two degree-of-freedom gimbal for the eyes upon which the cameras will be mounted. The robotic heads will be interfaced to separate internet connected personal computers. Through these computers, they will make use of online speech recognition tools, online ...


Eagle Aero Sport: Student-Built Aircraft, Rachael Bradshaw, Nick Bartholet Oct 2018

Eagle Aero Sport: Student-Built Aircraft, Rachael Bradshaw, Nick Bartholet

Undergraduate Research Symposium - Prescott

Eagle Aero Sport (EAS) is the first student operated aircraft build team at Embry-Riddle Aeronautical University. Our team allows students to gain hands-on experience in all aspects of aircraft production including: aircraft assembly, design engineering, management of production operations, finance, marketing, and team building skills. Through research, and consulting with the Experimental Aircraft Association, our airplane of choice is the Van’s RV-12. EAS is modifying the airplane to add real time flight test instrumentation for research. These instruments will gather data for aerodynamic, structural, as well as aircraft performance experiments. Presently, EAS is progressing with Build Team 60% complete ...


U.S. Government Aviation Safety Information Resources, Bert Chapman Jul 2018

U.S. Government Aviation Safety Information Resources, Bert Chapman

Libraries Faculty and Staff Presentations

Presentation covering U.S. Government aviation safety information resources. Topics addressed include U.S. laws,legislation, regulations, court cases, information resources from agencies such as the Federal Aviation Administration, Transportation Security Administration, National Aeronautics and Space Administration, congressional aviation oversight committees and congressional support agencies including the Congressional Budget Office, Congressional Research Service, and Government Accountability Office.


Investigation On Microstructure And Mechanical Properties Of Fa/Ggbs -Based Geopolymer After Exposure At Elevated Temperature, Apriany Saludung, Yuko Ogawa, Kenji Kawai May 2018

Investigation On Microstructure And Mechanical Properties Of Fa/Ggbs -Based Geopolymer After Exposure At Elevated Temperature, Apriany Saludung, Yuko Ogawa, Kenji Kawai

International Conference on Alkali Activated Materials and Geopolymers: Versatile Materials Offering High Performance and Low Emissions

Fly ash (FA) and ground granulated blast -furnace slag (GGBS) are industrial wastes and have been widely utilized as construction material due to the environmental impacts. The use of these by-products is not only for the sustainable construction but also for reducing the emission of CO2 due to the use of Portland cement. This study presents the microstructure and mechanical properties of geopolymer paste made from different ratios of low -calcium FA and GGBS after exposure at elevated temperature (500- 950oC). Compressive strength tests for both heated and unheated cylindrical specimens (using 50 mm x 100 mm ...


Solar And Rain Catching Canopy. Urban Oasis, Afolabi Ibitoye, Langston Clark, Elena Zimareva, Evan Banks, Alexander Aptekar May 2018

Solar And Rain Catching Canopy. Urban Oasis, Afolabi Ibitoye, Langston Clark, Elena Zimareva, Evan Banks, Alexander Aptekar

Publications and Research

The Urban Oasis is designed to work within existing “pocket parks” in New York City as a combined rainwater collector, personal electronics charging station and resting designation for New Yorkers. Intended to not only lessen the demand on the city power grid by using renewable energy to charge devices, the urban oasis is also intended to mitigate grey water overfill in New York’s combined sewer system and, in general, serve as a model for responsible environmental stewardship in urban areas.

The important technical aspects of the canopy specifically analyzed were:

a) how much rainwater could the canopy be expected ...


The Controversial F-35 Joint Strike Fighter: America's Most Expensive Weapons System And Its Global Impact, Bert Chapman Apr 2018

The Controversial F-35 Joint Strike Fighter: America's Most Expensive Weapons System And Its Global Impact, Bert Chapman

Libraries Faculty and Staff Creative Materials

Provides an overview on the F-35 Joint Strike Fighter (JSF) program involving the U.S. and many allied countries. Describes the costs of this program, the technical problems it has experienced, its economic impact on the U.S. and allied countries, the JSF's operational capabilities, potential combat scenarios in which it could be used, and the campaign finance impact aerospace companies and unions have in the electoral process.


Ctle - Meteorological Sensors Incorporated Into A Uas For Pedagogical Purposes, David Ehrensperger, James Curtis, Dorothea Ivanova, Mark Sinclair, Jacqueline R. Luedtke, Tim Holt, Jennah Perry, Johnny L. Young, Nicholas E. Harris Apr 2018

Ctle - Meteorological Sensors Incorporated Into A Uas For Pedagogical Purposes, David Ehrensperger, James Curtis, Dorothea Ivanova, Mark Sinclair, Jacqueline R. Luedtke, Tim Holt, Jennah Perry, Johnny L. Young, Nicholas E. Harris

David Ehrensperger

This presentation was part of my unpublished research experience in a CTLE Faculty Learning Community (FLC) during the 2017-2018 academic year. It involved incorporating meteorological sensors in Unmanned Aerial Systems (or UAS) in the pedagogical context of meteorology courses at Embry-Riddle Aeronautical University (ERAU) in Prescott, AZ. The FLC planned the incorporation of UAS sensors and working with the subsequent recorded data into courses during the Fall 2017 semester, implemented the planning during the Spring 2018 semester, and concretely planned to continue similar data gathering activities in future iterations of the courses.

As with all FLCs at ERAU, the commitment ...


Characterization Of Magnetic Thin Films Using The Magneto Optic Kerr Effect, Nicholas J. Savino Apr 2018

Characterization Of Magnetic Thin Films Using The Magneto Optic Kerr Effect, Nicholas J. Savino

Student Scholar Showcase

Understanding magnetic properties of materials allows for advances in applications such as data storage. The Magneto-Optic Kerr Effect (MOKE) displays the reflective response a magnetic material has to a magnetic field. When polarized light reflects off of a magnetic material, the polarization orientation can change. The application of an external magnetic field can affect how much this polarization changes in a non-linear manner. Hysteresis loops are created when examining the relationship between intensity of the reflected light to the applied magnetic field provide information about magnetic properties of that material, such as the coercive field and field retention. Preliminary measurements ...


A Longitudinal Analysis On The Cyclical Pattern Of The Us Airline Industry, Michelle Bennett Mar 2018

A Longitudinal Analysis On The Cyclical Pattern Of The Us Airline Industry, Michelle Bennett

Discovery Day - Prescott

The Airline Quality Rating (AQR) is the nation’s most comprehensive study of airline performance and quality for over two decades. The AQR sets the industry standard, providing consumers and industry watchers a way to compare performance quality among different US airlines using objective performance-based data (Bowen and Headley, 2014). The quantitative weighted average is computed monthly for every airline and divided by the sum of the weight to create the index. Criteria weighted in this formula include baggage handling, customer complaints, denied boarding and on time arrivals. This research employs the application of a longitudinal analysis methodology resulting in ...


Marketing Analysis Of Scholarly Journals In A Social World, Hunter Watson Mar 2018

Marketing Analysis Of Scholarly Journals In A Social World, Hunter Watson

Discovery Day - Prescott

The next methodology to the Airline Quality Rating (AQR) Social Media metrics is to determine if scholarly platforms for future use can benefit the AQR. The AQR authored by Dr. Brent Bowen and Dr. Dean Headley introduced the Airline Quality Rating (AQR) in 1993 as an objective method for comparing and scoring airline performance in areas deemed to be important for consumers. The quantitative metrics from utilizing new marketing techniques have increased the audience members attracted to this report. With a digitalized driven society, social media has been the main benefactor in gaining new attention. Continuing on the process to ...


Can The Presence Of A 1/F Structure In Stride-To-Stride Variability Enable Us To Withstand Falls?, Jenny A. Kent, Andreas Skiadopoulos, Jordan Wickstrom, Nicholas Stergiou Mar 2018

Can The Presence Of A 1/F Structure In Stride-To-Stride Variability Enable Us To Withstand Falls?, Jenny A. Kent, Andreas Skiadopoulos, Jordan Wickstrom, Nicholas Stergiou

Student Research and Creative Activity Fair

Falls are a persistent threat to longevity and quality of life, affecting 1/3 of older adults living in the community each year. There is strong evidence suggesting that a particular pattern within our walking reflects an ability to adapt to a continually changing environment. Specifically, the stride-to-stride patterns of healthy walking have a 1/f frequency spectrum. This has been observed to degrade to varying extents with aging and pathology. The aim of this study was to determine whether the presence of this structure of variability is related to an increased ability to withstand perturbations. We hypothesized that individuals ...


Epics Global Service Learning Pedagogy Explored For Construction Engineering Education, Brandon Fulk, Seyedali Ghahari, Makrand Hastak Jan 2018

Epics Global Service Learning Pedagogy Explored For Construction Engineering Education, Brandon Fulk, Seyedali Ghahari, Makrand Hastak

Engagement & Service-Learning Summit: Connecting Through Listening & Scholarship

EPICS is a service-learning design program in which teams of students partner with local and global community organizations to address human, community, and environmental needs. EPICS is an academic program in which teams of Purdue students partner with local not-for-profit community organizations to provide technology solutions. Team Ecuador is a division of the non-profit EPICS program at Purdue University. Since 2012 Team Ecuador has been partnered with FEVI, a non-governmental organization, to develop education infrastructure in Lumbisi. The current focus of Team Ecuador is to design, fundraise, and construct and Education Center for the community of Lumbisi. We are working ...


Brain Science = Biology + Engineering, Jennifer Welborn, Guangyu Xu, Morton Sternheim, Chris Emery Jan 2018

Brain Science = Biology + Engineering, Jennifer Welborn, Guangyu Xu, Morton Sternheim, Chris Emery

Science and Engineering Saturday Seminars

This interdisciplinary (physical and life sciences) seminar exposes participants to cutting edge research at UMASS, Amherst, on cell imaging using a chip which gathers a variety of data on the activities of single cells. Part of the seminar will be a presentation of current research in this area, followed by hands-on activities and a visit to the lab where this research is conducted. Application of this new technology to brain research will be discussed as well as the NGSS standards alignment and classroom applications at various levels and disciplines.


Electrochemical And Spectroscopic Study Of Peptide-Template Melanins, Daniel Courter, Olivia Rossi, Zhen Tian Jan 2018

Electrochemical And Spectroscopic Study Of Peptide-Template Melanins, Daniel Courter, Olivia Rossi, Zhen Tian

Honors Theses and Capstones

Melanins are organic polymers made up of 5,6-dihydroxyindole carboxylic acid (DHICA) and 5,6-dihydroxyindole (DHI). Biochemical systems synthesize melanins through a complex reaction pathway. Previous research exhibited that naturally-occurring melanins (NatMel) and their synthetic analogues (SynMel) can potentially serve as electrode materials for aqueous charge storage devices. Small surface area creates technical challenges for these melanins as charge storage materials. This research herein demonstrates that the structure of melanins can affect the charge storage capacities of monovalent Na+cations and divalent Mg2+ cations. 2-D sheet-like peptide melanins (PepMel) were synthesized into tripeptides consisting of aspartic acid (D), phenylalanine ...


Value Of Water - Economic And Full Value - Michigan Tech University, Rabi Gyawali, Ali Mirchi, David Watkins Jan 2018

Value Of Water - Economic And Full Value - Michigan Tech University, Rabi Gyawali, Ali Mirchi, David Watkins

All ECSTATIC Materials

Lecture module on Economic and Full Value of water developed by Michigan Tech University (slides).

Lecture draws on two readings:

  1. Brett Walton. (2010). The Price of Water: A Comparison of Water Rates, Usage in 30 U.S. Cities. April 26. Circle of Blue WaterNews. (Reading_for_Activity 1.pdf). Also available at: https://www.circleofblue.org/2010/world/the-price-of-water-a-comparison-of-water-rates-usage-in-30-u-s-cities/.
  2. Peter Rogers, Radhika de Silva, Ramesh Bhatia. (2002) Water is an economic good: How to use prices to promote equity, efficiency, and sustainability, Water Policy, Volume 4, Issue 1, 2002, Pages 1-17, https://doi.org/10.1016/S1366-7017(02)00004-1.

Find a companion ...


Development And Impact Of Teacher Social Capital In An Engineering Education Teacher Professional Development Program, Wei Zakharov Jan 2018

Development And Impact Of Teacher Social Capital In An Engineering Education Teacher Professional Development Program, Wei Zakharov

Libraries Faculty and Staff Scholarship and Research

Teacher social capital is a set of social interaction assets such as collegiality and collaboration that enable teachers to work with each other in groups to improve teaching and learning. This results in instructional improvement and student success in school reform.

This study discusses how an engineering education teacher professional development program has developed an environment for long-term collegiality and collaboration among its teachers. Furthermore, the study presents an empirical evidence of the impact of teacher social capital on students’ engineering knowledge learning.

Ninety teachers and 621 students are examined in this program. The participants are from fifteen elementary schools ...


Robb Garden Community Resource Center, Jackie Koyama, Daryll Mendoza, Kourtnie Sicam Dec 2017

Robb Garden Community Resource Center, Jackie Koyama, Daryll Mendoza, Kourtnie Sicam

Building Information Modeling Final Projects

Final project from the EMGT 193/293 Building Information Modeling (BIM) course in the School of Engineering and Computer Science as part of the Bachelor of Science in Engineering Management degree. A student group designed and modeled a one-story building to house the Pacific Garden Program on campus.


Operation Bim: Robb Garden Building Project, Michael White, Daniel Seif, Suman Bhardwaj Dec 2017

Operation Bim: Robb Garden Building Project, Michael White, Daniel Seif, Suman Bhardwaj

Building Information Modeling Final Projects

Final project from the EMGT 193/293 Building Information Modeling (BIM) course in the School of Engineering and Computer Science as part of the Bachelor of Science in Engineering Management degree. A student group designed and modeled a one-story building to house the Pacific Garden Program on campus.


Robb Garden Building: Revit Up, Gimelle Jacala, Colin Strong, Jason Wu Dec 2017

Robb Garden Building: Revit Up, Gimelle Jacala, Colin Strong, Jason Wu

Building Information Modeling Final Projects

Final project from the EMGT 193/293 Building Information Modeling (BIM) course in the School of Engineering and Computer Science as part of the Bachelor of Science in Engineering Management degree. A student group designed and modeled a one-story building to house the Pacific Garden Program on campus.


Geopolitics Of Rare Earth Elements, Bert Chapman Oct 2017

Geopolitics Of Rare Earth Elements, Bert Chapman

Libraries Faculty and Staff Presentations

Rare earth elements (REE) contain unique chemical physical properties such as lanthamum, are found in small concentrations, need extensive precise properties to separate, and are critical components of modern technologies such as laser guidance systems, personal electronics such as IPhones, satellites, and military weapons systems as varied as Virginia-class fast attack submarines, DDG-51 Aegis destroyers, the F-35 Joint Strike Fighter, and precision guided munitions. The U.S. has some rare earth resources, but is heavily dependent on access to them from countries as varied as Afghanistan, Bolivia, and China. Losing access to these resources would have significant adverse economic, military ...