Engineering Commons^™

Affordable Bioprint Head-Adapter For 3d Printers, Andrew Ceralde, Dominic Drake, Noah Engles, Mohammad Alwan, Nevada Perry

Honors Capstones

Introduction: Addressing the need for affordable and accessible bioprinting technology, the Northern Illinois University bioprinting research and design project aims to democratize the field by developing an open source bioprint head. The initiative targets the prohibitive cost of commercial bioprinters by proposing an optimal design that can be integrated with widely available 3D printers, like the Creality Ender-3. This approach seeks to enable the widespread adoption of bioprinting technology, particularly for applications in tissue engineering and regenerative medicine.

Methods: Leveraging SolidWorks for design, the project employs a methodology that combines a precision extrusion system with thermal and UV crosslinking capabilities. …

Improving The Power Efficiency Of Woodward’S High-Power Inverter (Hpi) Using Algorithmic Part Selection., Jaron Holder, Ali Al Gazwi, John Childers, Jose Soublett

Honors Capstones

Woodward Inc. is a secondary aerospace manufacturer based in the USA that specializes in aircraft power and control systems. This senior design project was concerned with a power systems platform currently in development by Woodward, the High-Power Inverter (HPI) system. In this report, the senior design group from Northern Illinois University (NIU) demonstrated the creation of an algorithmic part selection process to choose more power-efficient electrical components, the prototyping using MATLAB Simulink, and the practical testing that showed an increase of 7% in the power efficiency of the HPI system.

Igniting Passion:​ A Detailed Journey Through Rocketry Course Activities, Krish M. Patel, Hannah Caycedo, Joshua Gage, Josi Maness, Kevin Park, Mufeng Shen

SACAD: John Heinrichs Scholarly and Creative Activity Days

This course is a semester-long adventure in rocketry, led by Dr. Paul Adams. It covers everything about building and flying rockets, starting from the basics to more advanced rocketry. Students learn how to build rockets and use equipment used I payload systems like and altimeter and a GPS. We also learned about the importance of safety involved with building and launching rockets.

Assessing The Relationship Between Contralateral Limb Synergy And Rock Climbing Efficiency, Jeromy Miramontes

Theses, Dissertations and Capstones

Rock climbing is a total body sport testing the mental and physical capabilities of athletes. Efficiency of movement can improve the ability of climbers to perform at a higher capacity and reduce the risk of injury. Data on the relationship between the continuous relative phase (CRP) of contralateral joint rotations and time to completion of a bouldering move are ways to assess rock climbing. This study aimed to assess this relationship, as well as the geometric entropy (GE) of the center of mass displacement when completing the bouldering move, and the metabolic efficiency over 4 min of bouldering. The study …

Collaborations, Not Competitions, Can Reduce Gender Disparities In Robotics, Sonia Roberts, Alysson Light

Feminist Pedagogy

No abstract provided.

Energy Harvesting Sensors And Their Role In Fostering Sustainable Air Quality Monitoring, Tomas Valentin, Li Geng

Publications and Research

This research presents a comprehensive investigation into Energy Harvesting Sensors and their role in fostering sustainable air quality monitoring. The primary objective is to explore the viability of energy harvesting technologies in energizing sensor networks devoted to the real-time collection of air quality data, emphasizing the reduction of environmental impact and maintenance demands. The study delves into the integration of energy harvesting mechanisms, including solar and piezoelectric kinetic energy, to power advanced sensor nodes capable of detecting pollutants, particulate matter, and gas concentrations. The findings of this research highlight the significant benefits of energy harvesting sensors, including enhanced sustainability, long-term …

Barriers To Use Of Cross-Laminated Timber In Maine, Shane R. O'Neill

Forest Resources Faculty Scholarship

To increase understanding of both the adoption rate and in-state manufacturing of mass timber In Maine, the 131^st Legislature and Governor Mills passed LD 881, a resolve directing a study of the barriers facing cross-laminated timber In Maine and provide recommendations to promote their use in construction. This study was developed in response to the resolve. The study engaged 108 unique participants to define available training, education, and experiences across the stakeholders throughout the building lifecycle process in the state.

From this information, the following five recommendations are proposed:

1. Understand the policies and initiatives of other states to develop …

Language, Coded Instructions And The Interaction With Thermodynamics, Andy C. Mcintosh

Proceedings of the International Conference on Creationism

The theme of the 9th ICC is Developing and Systematizing the Creation Model of Origins. Following this theme, the proposed paper seeks to establish a rigorous and systematic approach to the important area of information and its interface with the substrate on which the information is expressed. This must first involve the understanding of the laws of thermodynamics not only for isolated systems but for closed (where only energy is allowed to cross the boundary) and open systems (where both matter and energy are allowed to cross the boundary). This is particularly an issue with the second law of …

Laser Assisted Direct Writing Of Liquid Metal For Microprinting Applications, Olga Vargas Cruz

Theses and Dissertations

This paper presents a research study for potential printing of a Liquid Metal (LM) Eutectic Gallium Indium alloy (EGaIn) through the applications of the innovative additive manufacturing technology LIFT (Laser Induced Forward Transfer). LIFT is a precise printing technology that allows to create small, detailed printing. The liquid metal in study, EGaIn, has demonstrated great potential for microelectronics applications due to its minimum toxicity and high conductivity. Throughout this research different printing parameters are studied to comprehend the behavior of EGaIn printing with LIFT technique, these include laser energy, laser pulse, receiver material substrate, donor layer thickness, and …

A Tessellation Of Engineers, Grace Jenkins Welsh

University Honors Theses

A capstone project is the culmination of what a student has learned while pursuing an undergraduate degree. A project of this magnitude requires a lot of time and dedication from every member of the team. This essay looks back at the experience of an electrical engineering student participating in the design of an auxiliary power and protection of a planned substation. The author describes the team's work, how they performed as a team, and their involvement with the professional sponsor and advisor. The author examines the experience with the goal of informing and encouraging prospective engineering students who may be …

Uncertainty Quantification Framework For Design Optimization, Austin Ryan Williams

Masters Theses

Difficulty to obtain neutron sources of interest have driven the need for optimization
techniques to tailor a neutron generator as a replacement. A proposed solution uses
off-the-shelf neutron sources coupled with an energy-tuning assembly to mimic the
source of interest (i.e. AmLi, AmBe, thermonuclear fission spectra, etc.). These
energy-tuning assemblies have been designed with complex optimization algorithms
coupled with Monte Carlo simulations. These new system surrogate designs often
do not have an experimental counterpart for validation and comparison, and lack
non-statistical uncertainties. This work aims to improve confidence in the predictions
by providing a tool for fast uncertainty quantification to …

Stability And Control Flight Testing Of A Modified Cessna 172, Tatiana Dirrigl Forbes

Theses and Dissertations

The Cessna 172N is a small, fixed-wing, single-engine aircraft. The modified Cessna 172N included a swapped engine to a Lycoming O-360-A4M, tuned exhaust, and variable timing ignition installed. Test flights on this aircraft were performed order to evaluate the stability and control characteristics of the Cessna 172N, and compare them with the regulations in the Title 14 CFR Part 23 Airworthiness Standards for Normal, Utility, Acrobatic, and Commuter Category Airplanes. The flight test consisted of four separate tests performed during a single flight, departing from and returning to Melbourne Orlando International airport (KMLB). The data was collected through static and …

International Information Management And Bim Best Practice Report, Ted Mckenna, Davitt Lamon

Reports

In order to inform the Digital Leadership and Cultural Change pillar of the Build Digital, a study of international best practice in digital adoption within the built environment sector globally was undertaken and is presented here-in. In order to identify key learnings for Ireland in the context of digital transformation, eight countries were included in this study, namely, Denmark, Finland, Netherlands, Germany, United Kingdom (UK), New Zealand, Australia and Singapore. These countries were selected for various reasons, including the level of digital maturity, the scale of the built environment sector and geographic spread. Key data for each country is included …

Sustainability And Circular Economy Horizon Scan And Needs Analysis, Sadaf Dalirazar, Mark Kelly, Derek Sinnott, James O'Donnell

Reports

The construction industry plays a crucial role in addressing the climate crisis as it is the largest global consumer of raw materials and contributes significantly to global energy consumption and emissions. Considering the world’s continuous population growth and the imperative to address infrastructure and housing demands the construction sector needs to adopt further sustainable strategies in its activities to reduce the pressure on natural resources. In addition, the Architecture, Engineering, and Construction (AEC) sector is responsible for generating substantial amount of waste known as Construction and Demolition Waste (CDW), which is projected to increase due to the future construction developments. …

Information Management And Bim Standards And Supports Inventory, Ryan Dempsey, Barry Mcauley, David Burke

Tools

The Digital Standards pillar consists of industry experts who champion the benefits of common rules, guidelines, and workflows that facilitate the improvement of information flow and information management across asset life cycles. Digital standards provide a common language that can be translated to technical specifications enabling clients, designers, contractors, and facilities managers, irrespective of their preferred tools, to communicate efficiently and reduce cost, rework, and disputes. Working closely with the Digital Procurement and Digital Education and Training pillars, this pillar is developing and delivering Irish Information Management/BIM (Digital Construction) guidelines for the sector.

This report summarises existing digital construction standards, …

Digital Construction Annual Survey 2022 Report, Davitt Lamon, Ted Mckenna

Reports

The Annual Survey 2022 was conducted to assess the state of digital transformation in the Irish construction and built environment sector. This report presents the analysis of survey data, with a focus on implications for the Build Digital project and Build Digital’s five pillars: Digital Leadership & Cultural Change, Digital Standards, Digital Education & Training, Digital Procurement, and Sustainability & Circular Economy. Key findings from the survey indicated that a significant number of organisations have started their digital transformation journey, with many identifying themselves as proactive and possessing a clear business-focused strategy. However, a considerable cohort of respondents are keen …

Infographic: Girls’ Interest In Engineering, Dominique Russell

Teacher infographics

It's well-known that women are underrepresented in participation in STEM education and the STEM workforce. The 2021 Youth in STEM study surveyed participants about their awareness and perception of STEM subjects and careers. As this infographic shows, the findings reveal age is important for girls when it comes to interest in studying engineering.

Practical Toolkit For Embedding Ethics In The Engineering Curriculum, Sarah Jayne Hitt, Stella Fowler, Sarah Junaid, Johnny Rich

Workshops

The need to embed ethics into the engineering curriculum is a collective imperative if we are to successfully navigate complexity, uncertainty and challenging ethical issues to build a sustainable society that works for everyone. To maximise positive impact, behaviours such as inclusivity and sustainability must become instinctive – golden threads running through everything that engineers think and do. Proactively, bringing engineering ethics to the fore in engineering programmes is one way UK higher education equips future engineers with the skills and mindset they need to succeed.

This workshop brings together best practice from expert practitioners across the UK, introducing a …

Descriptions Of Peer Mentors As Told By Undergraduate Engineering Student Mentees, Darcie Christensen, Idalis Villanueva Alarcón

Research Papers

Peer mentorship is a relationship between two people who are at a similar level. In this study, the setting is academic, namely peer mentorship amongst undergraduate engineering students. Within peer mentorship, participants aim to help one another through various activities, such as sharing information, helping motivate, providing advice, lending support, etc. The outcomes of peer mentorship are generally positive and mutually beneficial for mentors and mentees, but the focus of peer mentoring research in undergraduate engineering has primarily been focused on implementing and evaluating formalized peer mentoring efforts, not necessarily on the needs of students who may be in these …

The Experience Of Women In Engineering Apprenticeships | A Scoping Review, Joy Herron, Brian Bowe, Richard Gallery, Una Beagon

Research Papers

This scoping review aims to synthesise the existing literature on the experience of women in engineering and trade apprenticeships, discuss the common themes and highlight areas for future research. Apprenticeships are not only required to address the current skills shortage in the engineering profession which threatens to impede our ability to deliver on our sustainability goals and restrict economic growth they are also a proven pathway for women to enter engineering programmes. Despite growing social and political interest in increasing gender diversity in the workforce, data shows that women remain significantly underrepresented in engineering apprenticeship programs.

The Potential Of Metaverse Technology In E-Learning: Case Of Engineering Students, Rozali Badaoui, Klara Kovesi, Layla Tannoury

Research Papers

Metaverse technology integrates virtual and augmented reality, has significantly impacted many industries, and opened up new opportunities for educators and 1 Corresponding Author R Badaoui rozali.badaoui.zaki@gmail.com learners alike. This article focuses on its potential to transform e-learning, especially in engineering education, and highlights the importance of understanding engineering students' attitudes toward adopting new technologies. This study sheds light on the potential of e-learning in general, and the metaverse in specific, to engage and motivate students. We conducted a quantitative online survey (n=120) to collect data from engineering students. The analysis of collected data explores and evaluates the students' awareness and …

2023 Fall Engr 333 Project Assignment: Calvin Carbon Neutrality Date Project, Matthew K. Heun

ENGR 333

Description

The Fall 2023 ENGR333 project focused on the carbon neutrality date for Calvin University. In 2017, then-president Michael LeRoy committed Calvin to carbon neutrality by 2057, which seems rather too far into the future from the perspective of 2023. I asked the students “What earlier year should Calvin University choose for its carbon neutrality date?”

Customer

The customer for this project was Dr. Wiebe Boer, President of Calvin University.

Remote Laboratory For Nuclear Security Education, Anthony R. Galindo, Craig Marianno

International Journal of Nuclear Security

Laboratory experiences for online students are very limited. To fill this gap, educators in the Department of Nuclear Engineering at Texas A&M University developed a series of radiation detection experiments for their remote students. Radiation detection is only one piece of nuclear security. The objective of the current research is to describe the development and execution of three online laboratories that investigate the basic application of physical security sensors that use light, ultrasonics, and heat to detect adversaries. This laboratory complements lecture material from the department’s Nuclear Security System and Design course. Using the Remote Desktop Application, students connect to …

Industry Colloquium Report, Robert Moore

Reports

In the ever-evolving landscape of the construction industry, digital transformation has emerged as a pivotal force reshaping the way projects are conceived, executed, and delivered. This transformation, fuelled by cutting-edge technology and innovative practices, holds the promise of greater efficiency, sustainability, and collaboration within the construction sector.

This report offers a comprehensive summary of the Build Digital Project colloquium. It provides actionable insights and recommendations for clients, supply chain partners, and for prioritisation within the Build Digital Project pillars. As the industry partners seek to build a more efficient, sustainable, and collaborative construction sector, understanding and harnessing the invaluable insights …

An Animated Introduction To Digital Logic Design, John D. Carpinelli

Open and Affordable Textbooks

This book is designed for use in an introductory course on digital logic design, typically offered in computer engineering, electrical engineering, computer science, and other related programs. Such a course is usually offered at the sophomore level. This book makes extensive use of animation to illustrate the flow of data within a digital system and to step through some of the procedures used to design and optimize digital circuits.

All of the animations for this book can be found here: https://digitalcommons.njit.edu/dld-animations/

Comparing Polytechnic And Liberal Arts Institutions: Leaks In The System, Ryan Drew Baldwin

Seton Hall University Dissertations and Theses (ETDs)

The United States has long been a pioneer in higher education, yet the last few decades have proven challenging in maintaining its lead in the science, technology, engineering, and mathematics fields (STEM). Students entering postsecondary education and participating in a STEM degree face increased academic rigor and this study’s goal is to better understand factors that influence their retention. There are many psychosocial, environmental, and academic variables that may impact a student’s retention and this study aims to investigate how those variables inform a students likelihood of being retained and if there are meaningful differences between polytechnic and non-polytechnic institutions.

The Performance Analysis And Optimization Of Wave Energy Converters From Modeling To Basin Testing, Lauren Dickson

Electronic Theses and Dissertations

The successful development and optimization of wave energy converters (WECs) are pivotal to the pursuit of sustainable and renewable energy sources. This thesis explores the elements in a workflow that develops and demonstrates the protocols for the optimization of WECs using a rapid design\build\test procedure. This thesis establishes the characterization of scaled ocean test sites, develops the performance metrics, generates the performance modeling techniques to predict the optimum design geometries which will be produced for final testing, and finally, establishes the basin test plan which will be used to conduct the testing on the optimum design. The findings of this …

Dice: Blessed Or Cursed?, Warren Campbell, Cameron Miller, Xavier Simpson

SEAS Faculty Publications

Every year, hundreds of millions of dice are manufactured and sold. Because of the impossibility of precise dimensional control and nonuniform density, none of these dice are fair. Polyhedral dice manufactured for role-playing games like Dungeons and Dragons typically contain 4-sided, 6-sided, 8-sided, 10-sided, 12-sided, and 20-sided dice (D4, D6, D8, D10, D12, and D20). D20s are especially problematic. In 3000-roll tests of several D20s, only about one-quarter tested fair. In light of the inherent unfairness of most dice, we explored the possibility of using dice mechanics involving multiple dice to obtain fairer results. For D20s, summing three dice gave …

Engineering Start-Up Packages: Mixed Methods Analysis Of Composition And Implications For Early-Career Professional Formation, Monica L. Castaneda-Kessel

Office of Research Faculty and Staff Publications

This paper is an evidence-based practice paper. In competitive research environments, many universities and engineering colleges utilize start-up or recruitment packages to attract potential candidates. These costs are distributed across multiple cost centers within the university ecosystem. Potential engineering faculty candidates may sign a probationary contract and are provided with role statements during onboarding processes. Within the role statement, research has been the primary area that is catalyzed with start-up funding. Typically, start-up funding has prescribed purposes by category. According to the 2019 American Society for Engineering Education (ASEE) Engineering Research Council (ERC) Startup Package Survey, "77.6% of the start-up …

How Did The Landscape Of Student Belonging Shift During Covid-19?, Shruti Misra, Neha Kardam, Jennifer Vanantwerp, Denise Wilson

University Faculty Publications and Creative Works

The goal of this study is to understand if and how emergency remote teaching (ERT) used during the COVID-19 pandemic changed the ways in which instructional support and interactions were linked to belonging among engineering students. Belonging is a fundamental human motivation associated with a wide range of positive psychological, educational, social, and job outcomes. Frequent and predominantly conflict-free interactions within a stable, relational framework of caring are required to facilitate belonging. To better understand potential shifts in belonging that occurred from prepandemic to mid-pandemic, this study used survey data from a cross-sectional dataset at a single, large institution comprised …