Digital Commons Network^™

Institutionalizing Resilience In Us Universities: Prospects, Opportunities, And Models, Morris Foster, James O'Donnell, Mark Luckenbach, Elizabeth Andrews, Emily Steinhilber, John Wells, Mark Davis

ODU Articles

[From Introduction]

The United States is taking a largely region-specific approach to addressing challenges posed by climate change, in contrast with national and international approaches in most of the rest of the world. In locations such as Hampton Roads, New Orleans, and coastal Connecticut, the impacts of climate change tend to be addressed as they become locally evident rather than as part of a larger anticipatory national plan. Given that regional focus, universities can play a unique role in how the United States responds to the challenges of a changing climate. Universities can be knowledge brokers positioned outside or across …

The Impact Of Functional Modeling On Engineering Students' Mental Models, Jacob T. Nelson

Senior Honors Projects, 2010-2019

The ability to understand complexity and think holistically about systems is an increasingly important part of engineering design. This is embodied in the concept of systems thinking, a concept studied primarily in the fields of systems dynamics and systems engineering. Systems thinking ability is built off mental models, a loosely-defined construct people form to make predictions about their surroundings. Methods to evaluate systems thinking and underlying mental models rely primarily on self-evaluative methods such as questionnaires, or detailed simulations of systems or processes; however these methods fail to directly capture students’ design tendencies. This work presents a visual instrument used …

Engineering Identity Development: A Review Of Higher Education Literature, Sarah L. Rodriguez, Charles Lu, Morgan Bartlett

Faculty Publications

The purpose of this systematic literature review was to appraise and synthesize the current scholarship pertaining to engineering identity development within the higher education context and create recommendations for future scholarship within engineering education. A review of the literature concluded that research on engineering identity development has increased over the past ten years, has been conducted primarily with qualitative methods, and has been primarily limited to academic communities focused on mathematics, science, and engineering education. In addition, current scholarship reflected that most of the work in this area has focused on the learning contexts and experiences of women and underrepresented …

Neutrosophic Optimization And Its Application On Structural Designs, Florentin Smarandache, Mridula Sarkar, Tapan Kumar Roy

Branch Mathematics and Statistics Faculty and Staff Publications

In the real world, uncertainty or vagueness is prevalent in engineering and management computations. Commonly, such uncertainties are included in the design process by introducing simplified hypothesis and safety or design factors. In case of structural and pavement design, several design methods are available to optimize objectives. But all such methods follow numerous monographs, tables and charts to find effective thickness of pavement design or optimum weight and deflection of structure calculating certain loop of algorithm in the cited iteration process. Most of the time, designers either only take help of a software or stop the cited procedure even after …

Proceedings Of The 18th Annual Early Career Technical Conference (Front Matter), Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 18th Annual Early Career Technical Conference, November 3, 2018. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. i-xii

Wideband Doa And Parameter Estimation Of Chirp Sources Using Dcft And Compressive Sensing, Luay A. Al Irkhis

Browse all Theses and Dissertations

Direction of Arrival (DoA) estimation of chirp sources has many applications in radar, sonar and medical imaging. This work considers DoA and parameter estimation of wide- band chirp sources by the use of Discrete Chirp Fourier Transform (DCFT), its Compres- sive Sensing formulation (CS-DCFT) and Distributed CS. DCFT is similar to traditional Discrete Fourier Transform (DFT) but with chirp ba- sis and two-dimensional search over chirp rate and chirp frequency. For chirp parame- ters estimation, the proposed Compressive Sensing (CS) formulation uses the parametric DCFT basis to achieve superior estimator performance in polynomial time using Orthog- onal Matching Pursuit (OMP) …

Kentucky 4-H Minimizes Barriers To Stem Education, Rachel Elizabeth Noble

Online Theses and Dissertations

Science, Technology, Engineering, and Math (STEM) programs are a national priority. The increase in the number of jobs that require a STEM-minded workforce raises the demand for education systems and communities to focus on fostering the development of STEM competencies of students. American youth are not gaining the skills necessary to compete in the global workforce. This study investigates how Kentucky 4-H minimizes the barriers of accessing STEM programs for youth in grades 4-8. Barriers of accessing STEM programs investigated are: lack of funding and resources, time, professional development, integration across curriculum, and out-of-school experiences. 4-H is the largest youth …

Examining Engineering Design Cognition With Respect To Student Experience And Performance, Greg J. Strimel, Eunhye Kim, Scott R. Bartholomew, Diana V. Cantu

Faculty Publications

This study investigated the design cognition and performance results of secondary and post-secondary engineering students while engaged in an engineering design task. Relationships between prototype performance and design cognition were highlighted to investigate potential links between cognitive processes and success on engineering design problems. Concurrent think-aloud protocols were collected from eight secondary and 12 post-secondary engineering students working individually to design, make, and evaluate a solution prototype to an engineering design task. The collected protocols were segmented and coded using a pre-established coding scheme. The results were then analyzed to compare the two participant groups and determine the relationships between …

Wetting Properties Of Structured Interfaces Composed Of Surface-Attached Spherical Nanoparticles, Bishal Bhattarai

Browse all Theses and Dissertations

In this thesis, the effects of the external pressure and surface energy on stability and wetting transition at nanotextured interfaces are studied using molecular dynamics and continuum simulations. The surface roughness of the composite interface is modeled via an array of spherical nanoparticles with controlled wettability. It was found that in the absence of external pressure, the liquid interface is flat and its location relative to the solid substrate is determined by the radius of the particle and the local contact angle. With increasing pressure on the liquid film, its interface becomes more curved and the three-phase contact line is …

Stem And The Local Economy: Do Regions Reap The Benefits Of A Stem-Educated Workforce?, Fran Stewart

Employment Research Newsletter

No abstract provided.

Unlv Enrollment Analysis, Alexis Acosta, Juan Brena, Chaitanya Ingle, Ajanae' Williams

Math 365 Class Projects

What will be the future enrollment for UNLV between 2021 to 2025? What will be the future enrollment for the College of Engineering between 2021 and 2025?

Regulation Of The Motor Output Of The Spinal Cord: Burst Firing Generation And Sensorimotor Integration, Amr A. Mahrous

Browse all Theses and Dissertations

Spinal motoneurons are the final common path for motor signals. Thus, the firing activity recorded from spinal motoneurons or their axons in the ventral roots represents the motor output of the nervous system. This dissertation investigates two major phenomena that help generate and shape the neuronal motor output. Specialized groups of spinal neurons called central pattern generators (CPGs) are capable of orchestrating rhythmic bursting activity without involvement of the brain. This activity underlies stereotyped movements such as locomotion. If known, the ionic mechanisms responsible for generating this activity can offer new pharmacological interventions to restore walking in paralyzed patients with …

Characterization And Design Of Voltage-Mode Controlled Full-Bridge Dc/Dc Converter With Current Limit, Nathaniel R. Smith

Browse all Theses and Dissertations

Advancements in Direct Current (DC) electrical power systems have enabled new functionality in many, varied applications. Discrete power semiconductor devices are increasing in efficiency, switching frequency, and power density, resulting in greater usage of DC power management and distribution methods, including DC/DC conversion. DC distribution lacks inherent capability to safely and effectively break fault current, particularly in mobile solutions, where larger and slower electromechanical switching devices are not optimal or feasible. One solution is to design a low-energy breaking point into a switching power supply. Simpler converter designs, with a lower number of switching devices, have been modeled and can …

Infographic: Institutional Barriers To Black And Latino Male Collegians’ Success In Engineering And Related Stem Fields, Leroy L. Long Iii, William Wanyagah

Publications

Infographic was created to support the article Institutional Barriers to Black and Latino Male Collegian's Success in Engineering and Related Stem Fields, which can be read here:

Counseling Program Intervention For Improving African American Students’ Science, Technology, Engineering, And Mathematics Dual Enrollment Participation, Sonja L. Taylor

Theses and Dissertations

African Americans are underrepresented at all points in the STEM pipeline from K-12 coursework into professional careers. The reasons for this underrepresentation are varied and reflect a myriad of contributing factors based on early academic experiences, sociocultural influences, and the effects of standardized testing. The three-fold purpose of this study was to implement a counseling program to inform nine African American study participants about the dual enrollment opportunity at their high school, to gain perspective about the factors which shaped their STEM disposition, and to determine the effect of the program on their attitudes about dual enrollment participation. The study …

Validating A Reduced-Order Model For Synthetic Jet Actuators Using Cfd And Experimental Data, Tim Persoons, Rick Cressall, Aliimohammadi Sajad

Articles

Synthetic jet actuators (SJA) are emerging in various engineering applications, from flow separation and noise control in aviation to thermal management of electronics. A SJA oscillates a flexible membrane inside a cavity connected to a nozzle producing vortices. A complex interaction between the cavity pressure field and the driving electronics can make it difficult to predict performance. A reduced-order model (ROM) has been developed to predict the performance of SJAs. This paper applies this model to a canonical configuration with applications in flow control and electronics cooling, consisting of a single SJA with a rectangular orifice, emanating perpendicular to the …

Identification And Preliminary Review Of Doctoral Theses In Engineering Education That Have Used Phenomenological Methods, Shannon Chance, I. Direito

Conference papers

46th SEFI Annual Conference 2018. Creativity, innovation and entrepreneurship for engineering education excellence.

2017 Fall Engr333 Project Final Report (Section A), Trevor Nyeholt, Francis Kapesa, Justin Thalmayer, Erik Karlson, Kyle Van Veen, Kirk Brink, Steven Tarske, Brent Homan, Nathan De Haan, Paul Bootsma, Megan Anders, Philip Holmes, Melanie Fox, Noah Pirrotta, Abigail Berkompas, Ben Wellman, Halley Press, Christopher Greaves, Josh Templeman, Tim Bosch, Jake Zandstra, Hendrik Vermeulen

ENGR 333

Calvin College currently spends $836,000 annually on natural gas consumption. The engineering 333-A class was tasked with the question, "What would it take for Calvin College to save $75,000 per year on natural gas costs". The class was split into five groups (Boilers, Dorms and Dining Hall, Academic Buildings, Finance, and PE Complex) to research possible areas of savings. Through the class' research, it was determined that Calvin College has the potential savings of $87,000 a year through the reduction of natural gas usage.

2017 Fall Engr333 Project Final Report (Section B), Eric Ball, Mitchell Debruin, Raymond Kolocek, Edwin Kpodzro, Jacob Vandekieft, Nate Anderson, Brennan Steenhoek, Darbi Meyer, Derek Vermerris, Jessica Bouma, Devon Loerop, Reuben Saarloos, Richmond Amoh, Matthew Boelens, Tyson Butler, Laura Van Winkle, Alex Keizer, Kwame Ohemeng, Cameron Richman, Julie Van De Riet

ENGR 333

Currently, Calvin College spends $2.8M on electricity and natural gas. In the recent past Calvin has alleviated some of these costs by running a cogeneration system that combusts fuel and produces electricity and heat, this old system has since been removed due to age. With the old system removed Calvin is fully reliant on grid, leading to increased electricity cost. In addition to saving Calvin money, President Leroy formally signed the President’s Carbon Commitment that announced Calvin’s intent to be Carbon neutral by 2057. To meet both the cost and emissions saving needs, the objective of the energy savings project …

2017 Fall Engr333 Seminar Preservation, Trevor Nyeholt, Erik Karlson, Cam Richman, Tyson Butler

ENGR 333

File for student presentation, given by students in the Fall 2017 class of ENGR333.

2017 Fall Engr333 Poster (Section B), Eric Ball, Mitchell Debruin, Raymond Kolocek, Edwin Kpodzro, Jacob Vandekieft, Nate Anderson, Brennan Steenhoek, Darbi Meyer, Derek Vermerris, Jessica Bouma, Devon Loerop, Reuben Saarloos, Richard Amoh, Matthew Boelens, Tyson Butler, Laura Van Winkle, Alex Keizer, Kwame Ohemeng, Cameron Richman, Julie Van De Riet

ENGR 333

Previously, Calvin College had a cogeneration system with the purpose of generating electricity and heat, through the combustion of natural gas, for Calvin’s campus. The original co-gen system was removed in 2017 due to high costs associated with maintenance and operations. Without a co-gen system, Calvin College is fully dependent on the grid. To save money and help in the President’s Carbon Commitment, PCC, the mechanical engineering students of ENGR 333 (section B) propose the implementation of a new co-gen system.

2017 Fall Engr333 Poster (Section A), Trevor Nyeholt, Francis Kapesa, Justin Thalmayer, Erik Karlson, Kyle Van Veen, Kirk Brink, Steven Tarske, Brent Homan, Nathan De Haan, Paul Bootsma, Megan Anders, Philip Holmes, Melanie Fox, Noah Pirrotta, Abigail Berkompas, Ben Wellman, Halley Press, Christopher Greaves, Josh Templeman, Tim Bosch, Jake Zandstra, Hendrik Vermeulen

ENGR 333

Calvin College uses 161,000 MMBTU of natural gas per year, which correlates to $836,000 of annual expenses. However Calvin could save as much as $240,000 on natural gas if they were as efficient as the top performer in an energy audit of similar colleges and universities in the Midwest, conducted by Sightlines Institute. The goal of this project was to see what actions could be taken to save the college $75,000 in annual natural gas costs.

Coupling K-12 Music Education With Science, Technology, Engineering And Math (Stem) Curricula: Implementation Of A Stemusic Outreach Program, Mallory Maestri

Civil Engineering Undergraduate Honors Theses

Many studies have investigated the effects of music on evoking human emotions and diverse types of brain responses. One study by Juslin and Vastfjall indicates that hearing music can stimulate brain stem reflexes, create emotional contagion, recall episodic memories and provoke visual imagery. Due to the influence music has on human brain waves, researchers have been studying the effect of music on enhancing the spatial abilities of young students. Science, Technology, Engineering and Math (STEM) professions rely heavily on spatial skills. Research on the connection of music with spatial skills proposes that when the brain processes rhythm a “mental rotation” …

Dordt Receives Noyce Grant For Stem Education, Kate Henreckson

The Voice

No abstract provided.

Ncer Assistance Agreement Annual Progress Report For Grant #83582401 - Assessment Of Stormwater Harvesting Via Manage Aquifer Recharge (Mar) To Develop New Water Supplies In The Arid West: The Salt Lake Valley Example, Ryan Dupont, Joan E. Mclean, Richard C. Peralta, Sarah E. Null, Douglas B. Jackson-Smith

Civil and Environmental Engineering Faculty Publications

The aims of the original proposed project remain the same, that is, to test the hypothesis that Managed Aquifer Recharge (MAR) for stormwater harvesting is a technically feasible, socially and environmentally acceptable, economically viable, and legally feasible option for developing new water supplies for arid Western urban ecosystems experiencing increasing population, and climate change pressures on existing water resources. The project is being carried out via three distinct but integrated components that include: 1) Monitoring of existing distributed MAR harvesting schemes involving a growing number of demonstration Green Infrastructure (GI) test sites; 2) Integrated stormwater/vadose zone/groundwater/ ecosystem services modeling; and …

A Primer In Science And Engineering Collection Development, Julia Gelfand, Ibironke Lawal, Jill Hanson Powell, Anne E. Rauh

Librarian Publications

Collection development librarians often find themselves in charge of selection and deselection for some unfamiliar subjects. While there is extensive literature and courses on general collection development, there are limited courses on science and engineering in particular. This session will focus on science and engineering collection development strategies. It is designed to build self-confidence for people new to the profession, those who are transitioning to collection development in science and engineering, and those with no science subject background. Four librarians from diverse institutions, responsible for science and engineering collection development, will discuss topics important to their roles and strategies learned …

2017 The Role Of Books And Reading In Stem: An Overview Of The Benefits For Children And The Opportunities To Enhance The Field, Vitaliy Popov, Tessa Tinkler

Youth, Education, and Literacy

In April 2017, STEM Next, in partnership with the Hoag Foundation and the Molina Foundation, commissioned the Institute for Entrepreneurship in Education (IEE) and the Caster Family Center for Nonprofit and Philanthropic Research at the University of San Diego to provide an overview of literacy learning within the disciplinary context of Science, Technology, Engineering, and Math (STEM). This overview includes (1) a literature review on the benefits of integrating literacy and STEM for elementary and middle-school-aged children, (2) an environmental scan of reading programs, organizations, and materials that focus on Literacy in STEM, and (3) a set of criteria for …

People Like Me: Increasing Likelihood Of Success For Underrepresented Minorities In Stem By Providing Realistic And Relatable Role Models, Nir Aish, Philip Asare, Elif Miskioglu

Faculty Conference Papers and Presentations

Seeing themselves represented in the role models they aspire to, has been shown to be important to students' sense of belonging and success. Underrepresented college students in STEM fields are exposed to only a small set of role models. This set often consist of famous individuals with extraordinary stories (we call these outliers), and represent unfeasible paths to success for a large majority of these students. We aim to remedy this by identifying a set of role models who represent more feasible paths to success (we call these non-outliers) for many underrepresented students. We contend that, despite the less extraordinary …

Approaches To Integrating Engineering In Stem Units And Student Achievement Gains, Elizabeth A. Crotty, Selcen S. Guzey, Gillian H. Roehrig, Aran W. Glancy, Elizabeth A. Ring-Whalen, Tamara J. Moore

Journal of Pre-College Engineering Education Research (J-PEER)

This study examined different approaches to integrating engineering practices in science, technology, engineering, and mathematics (STEM) curriculum units. These various approaches were correlated with student outcomes on engineering assessment items. There are numerous reform documents in the USA and around the world that emphasize the need to incorporate engineering into science education. The authors of this study contend that different approaches to integrating engineering in STEM units correlate to larger student achievement gains in engineering, based on assessment items developed from the Framework for Quality K–12 Engineering Education (Moore, Glancy, Tank, Kersten, & Smith, 2014). The goal of this work …

2017 Fall Engr333 Project Assignment, Matthew K. Heun

ENGR 333

The Fall 2017 ENGR333 project focused on campus energy cost savings.

I asked the students two questions:

• Section A: What would it take for Calvin to save $75k/year on natural gas costs?
• Section B: What would it take for Calvin to save $150k/year on energy costs (mostly electricity) using a new on-site co-gen plant?

Customer

The customer for this project was Phil Beezhold, Director of Calvin’s Physical Plant.