Engineering Commons^™

Integrating Ar Technology Into Cbm Laboratory Experiments, Alan Mcdonnell, Brian Vaughan, David Mcdonnell, Bernard Capraro

Practice Papers

This paper examines the pilot phase integration of Augmented Reality (AR) technology into a Condition Based Monitoring (CBM) engineering taught module. Students participate in a laboratory cycle within the CBM module, engaging in multiple experiments on a weekly basis, including Shaft Alignment, which provides meaningful, industry-relevant experience in an engineering environment. During the laboratory sessions, multiple pairs of students complete the experiment simultaneously on multiple custom engineering rigs. The Shaft Alignment procedure, although very relevant to industry needs, is also complex and time consuming, with students often struggling to complete the task within the designated laboratory time. AR technology has …

Engineering Solutions For A More Inclusive Society: A Case Study With Europe-Wide Challenge-Based Learning, Lennart Osterhus, Ulrike Bulmann, Viktoria Constanze Schneider, Kaline Furlan

Practice Papers

Engineering practices directly impact our society and yet, traditional engineering courses often present a lack of emphasis on social and sustainable responsibility. Therefore, a course was designed to increase societal awareness and promote social-conscious engineering practices, and also interdisciplinary and intercultural collaboration. The course followed the concept of challenge-based learning (CBL) and was offered within the framework of the European Consortium of Innovative Universities (ECIU). In such framework, students from 13 European partner universities could join, as well as professionals and citizens as so-called continuous learners. The challenge addressed the issue of an increasingly aging European society and the physical …

Designing Of Curricula Of Environmental Engineering And Constructions Engineering For Sustainability, Enrica Caporali, Johann Antonio Facciorusso, Riccardo Gori, Elena Palmisano

Practice Papers

The experience carried out at the University of Florence, Department of Civil and Environmental Engineering, in designing two new undergraduate curricula in “Environmental Engineering” and “Civil and Building Engineering for sustainability”, is reported. The bachelor in Environmental Engineering aims to train engineers capable of working in the field of protection of environment, territory and natural resources. The bachelor in Civil and Building Engineering for sustainability aims to train engineers capable of working in the field of structures, infrastructures, and constructions in general, as well as management and safety of construction processes. The development of the two curricula was based preliminarily …

Shared Interests In Live Case-Based Learning – Students’ Dynamic Role In An Innovation Ecosystem, Villads Keiding, Sara Grex, Giana Carli Lorenzini, Giulio Pantano

Practice Papers

Teaching engineering students to navigate complex innovation ecosystems and deal with wicked problems is vital for contributing to sustainable development. Research shows that case-based learning with real-life challenges boosts motivation and learning outcomes. This paper presents a course that is in the core of an ecosystem where engineering students engage with hospitals, and work on the hospitals’ documented innovation needs. By design, the course setup has a double purpose: in a learning context, the course strengthens intrapreneurship education, with students acting in an empowered role like professional consultants. In an organizational context, the course enhances knowledge sharing, filling in the …

Engagement In Technical Student-Run Organizations: How Do This Effect The Students’ Well-Being And What Does It Mean To The Future Of Education?, Ingrid Berg Sivertsen

Practice Papers

Loneliness among Norwegian students has never been higher than after the Covid-19 pandemic (Lervåg et al. 2022). In recent surveys, over 50% of Norwegian students report they felt troubled by loneliness (Lervåg 2022, Tekna 2022). One article written by a student representative implies that loneliness may be counteracted if engineering students participate in student organizations, and that the universities needs to facilitate for that (Nitschke 2022). Engineering students worldwide engage in student-run organizations (SRO) where they design, develop, and build technical solutions (Li et al. 2023, Dol 2016). At the Norwegian University of Science and Technology (NTNU) those student organizations …

Fostering A Sustainable Future Through Inclusive Design, Samara Omar, Kate Youmans, Aubrey Wigner, Henry Archer, Carrie Mcclelland

Practice Papers

Fostering a sustainable future requires a balance between human necessities, societal institutions, and environmental systems; and this delicate equilibrium is best attained through strategic and innovative design. With this, and the growing diversity of our communities, it is imperative to equip engineering students with inclusive perspectives that allow them to critically assess the socio-technical elements of sustainable design. Recent research within engineering education has elevated the importance of empathy as a design practice and inclusivity as a design principle; exploring topics of bias and exclusion are essential to this work. As part of a first-year design course, we introduced these …

Comparing Engineering Students Perceptions Of Online And Traditional Face To Face Environments During A Problem And Project Based Learning (Pbl) Module, Sean O'Connor, Jason Richard Power, Nicolaas Blom, David A Tanner, Eamonn Stack Mulvihill

Practice Papers

Research examining the future of engineering education has highlighted forthcoming challenges for engineering institutions, such as increasing cohort sizes, limited budgets and a demand for the delivery of flexible, diverse and student-centred curricula. To this end, scholars have suggested the use of problem and project based learning (PBL) methodologies that can be implemented within hybrid learning environments. This paper examines and compares students' perceptions of a PBL module that was delivered by means of online and traditional face-to-face environments. The goal of this paper is to highlight the students' voice over other stakeholders to provide valuable insights into their preferences …

Problems Without Solution? Challenges Of Climate Change And Sustainability In Engineering Education, Sahra Dornick

Practice Papers

The issues of climate change and sustainability are urgent and critical concerns of our time. The rise of climate disasters, such as floods, droughts, forest fires, and hurricanes, poses a threat to the survival of humans, animals, and plants. Despite scientists having warned about the impending dangers of high CO2 emissions, particularly from the global North for many years, there has been no political or technical solution in sight.

Engineers are known for being problem-solvers, but what happens when the problem is complex and the consequences of technical interventions are hard to predict? In my paper, I propose measures to …

Re/Upskilling The Agricultural Labour Force: Micro-Credentials As Innovative Lll Strategy, Vladana Vidric, Christina Paulus, Simon Grebner, Maximilian Treiber, Martin Mayr, Andreas Mandler

Practice Papers

Industry 4.0 had a strong impact on globalization by changing the workforce and increasing access to new skills and knowledge. According to the World Economic Forum, by 2025, 50% of all employees will need reskilling due to new technology. Industry 5.0 addresses long term prospects such as sustainability, resilience and human-centricity regarding efficiency and productivity. Agriculture is the most exposed economic sector to climate change with cascade effects on agro ecosystems. Innovations in the agricultural sector are inevitable to ensure food security and social and environmental sustainability. This paper presents two Erasmus+ projects that highlight the importance of future engineering …

An Experimental-Numerical Study Of Heat Transfer Enhancement In A Minichannel Using Asymmetric Pulsating Flows, Parth S. Kumavat, Sajad Alimohammad, Seamus M. O'Sullivan

Articles

The development of current and next-generation high-performance electronic devices has led to miniaturization in more densely packed spaces. The increasing power levels have resulted in ever-increasing heat flux densities which necessitates the evolution of new liquid-based heat exchange technologies. Implementation of single-phase cooling systems using pulsating flow is viewed as a potential solution to the problems involving high energy density electronics. This work involves a combined experimental and numerical analysis of pulsating flows in a rectangular mini channel undergoing asymmetric sinusoidal flow pulsation formats. The mini channel design includes a heated bottom section approximated as a constant heat flux boundary …

Comparing The Iwl-Mvm-Rs And Minstrel-Ht Rate Adaptation Algorithms Under Different Local Error Conditions, Luhan Wang, Mark Davis

Conference papers

WLAN technology has grown rapidly and now provides increasingly reliable and fast wireless connectivity. A number of Rate Adaptation Algorithms (RAAs) which are designed to select the optimal line rate according to the channel conditions have been proposed. Iwl-Mvm-Rs RAA which is implemented in the Intel wireless chips and Minstrel-HT RAA which is implemented in the Linux kernels are two such well known algorithms. Many existing papers evaluate these two algorithms with regard to device mobility and signal fading. However, the causes of frame errors can be divided into two categories: weak signal reception and collisions. Therefore, in this paper, …

Thermoelectric Properties Of Cement Composite Analogues From First Principles Calculations, Esther Orisakwe, Conrad S.N. Johnston, Ruchita Jani, Xiaolo Liu, Lorenzo Stella, Jorge Kohanoff's, Niall Holmes Dr., Brian Norton, Ming Qu, Hongxi Yin, Kazuaki Yazawa

Articles

Buildings are responsible for a considerable fraction of the energy wasted globally every year, and as a result, excess carbon emissions. While heat is lost directly in colder months and climates, resulting in increased heating loads, in hot climates cooling and ventilation is required. One avenue towards improving the energy efficiency of buildings is to integrate thermoelectric devices and materials within the fabric of the building to exploit the temperature gradient between the inside and outside to do useful work. Cement-based materials are ubiquitous in modern buildings and present an interesting opportunity to be functionalized. We present a systematic investigation …

Simultaneous Measurement Of Gas Pressure And Temperature Using A Microbubble Resonator Combined With An Fbg, Ketan Dong, Ke Tian, Chuanzhen Zhao, Huibin Li, Jibo Yu, Angzhen Li, Xiaoling Sun, Elfed Lewis, Gerald Farrell, Pengfei Wang

Conference Papers

We propose and demonstrate a microbubble resonator combined with a fiber Bragg grating (FBG) for simultaneous measurement of gas pressure and temperature. The approach used allows for very close proximity (<200 >μm) between the FBG and the microbubble resonator. The microbubble resonator is fabricated in a section of hollow-core fiber (HCF), spliced to a single-mode fiber (SMF) with a pre-inscribed FBG to form a single-ended open structure. Fresnel reflection from the HCF cleaved end means that broadband light is reflected backwards in the same direction as the Bragg wavelength from the FBG. A tapered fiber couples the reflected broadband light …

Tunable Erbium-Doped Fiber Ring Laser With A Polymer Micro Bottle Resonator, Anuradha Rout, Zhe Wang, Zhuochen Wang, Yuliya Semenova

Conference Papers

A new tunable fiber laser structure based on an erbium-doped fiber ring laser (FRL) and a polymer-based microbottle resonator (PMBR) as the wavelength selective filter is proposed and demonstrated. The tunability of the laser output in response to axial strain of up to 253.6 με applied to the PMBR is demonstrated experimentally. When the strain was applied to the PMBR’s long axis, the central lasing wavelength shifted towards shorter wavelengths in a linear fashion. The laser's strain sensitivity was determined to be 0.69 pm/με. The proposed strain-tunable PMBR laser offers the advantages of simple structure, low cost, robust performance, and …

Third Arkansas Record Of Mountain Bluebird (Sialia Currucoides), With Notes On Habitat And Behavior, G. R. Graves

Journal of the Arkansas Academy of Science

Mountain Bluebird (Sialia currucoides) breeds in western North America and winters east to the Great Plains from Nebraska to Texas (Johnson and Dawson 2020). Vagrants are occasionally reported in eastern North America, mostly from November through March, but relatively few wintering records have been documented in the lower Mississippi Valley east of 96° W longitude and south of 37° N latitude.

Academy Presidents And Institutional Members, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

Nebraska Tractor Test: 2266 John Deere 9rx 640, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary #1273: Case Ih Optum 340 Cvx, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Tensiography And Liquid Drop Metrology, David Kennedy, Des Carbery, Norman Mcmillan

Conference Papers

This research focused on drop metrology and the use of camera technology and vibration analysis influence on theoretical and practical tensiography. Drop shape and Tensiography are explained and how they relate to each other. Studies shows a relationship between vibration frequency and surface tension of liquids. However they also reveal the need for a theoretical understanding of the vibration tensiotrace of drops. Camera studies on large diameter dropheads used in tensiography are explored. Various image analysis methods were investigated for determining drop shape from camera images. Examination of the digital image reveals measurement issues. High speed camera images reveal new …

Reducing False Starts Among It Employees—A Study Of Hiring Professionals’ Perceptions, Swatee B. Kulkarni

Master's Theses and Doctoral Dissertations

One of the biggest challenges facing organizations is recruiting and retaining talented employees. A false start is an issue where an employee is hired for a certain position following the organization’s recruiting process; however, within the first year, the employee or the employer realizes that it is not a right fit, and the employment is terminated. The unexpected loss of employees is recognized as a global issue that affects overall business performance regardless of industry. The economic impact of false starts is estimated to be $1.28 billion per year according to the Bureau of Labor Statistics (BLS). This study examines …

Investigating Michigan’S Skilled Construction Laborer Shortage Within The Great Lakes Region, Jennifer E. Russell

Master's Theses and Doctoral Dissertations

The construction industry has been facing a decline in skilled trade labor for decades. This study asks three overarching questions: (a) What are the causes and influencing factors of Michigan’s skilled construction laborer shortage? (b) How are Michigan stakeholders in the Great Lakes Region remedying the shortage? (c) What new solutions can be implemented to remedy Michigan’s skilled construction laborer shortage? A literature review was conducted to identify causes, influencing factors, and research gaps. Closed surveys questioning 69 construction project managers and 101 skilled trade laborers in Michigan were conducted online and on construction sites. A quantitative analysis of the …

Evaluating The Sustainability Of Paper And Plastic Substitute Material Limex, E.-Lexus Thornton, Avery Hartley, Daniel Caudill, Martin Gamesu, Julius M. Schoop, Fazleena Badurdeen

Mechanical Engineering Faculty Publications

With the increasing decline in the environment and natural resources it is important to find new ways in which manufacturing can increase the sustainability of the world. This study seeks to compare LimeX, a state-of-the-art paper and plastic alternative primarily made of limestone, with conventional paper and plastic materials. For a better understanding of LimeX as a material, a brief investigation of the mechanical and chemical properties will be performed through experimentation and analysis. In addition, this paper aims to evaluate the sustainability of LimeX through the analysis of metrics relating to the triple bottom line (environmental impacts, economic impacts …

Cancer Immunotherapy: A Breakthrough In Patient Care, Abdou-Samad Kone, Nour El Imane Issam Salah, Amina Ghouzlani, Abdallah Badou

Health Sciences

Cancer is one of the world's leading causes of death. Conventional therapies, such as surgical resection, radiotherapy, and chemotherapy, have improved patient management and have shown overwhelming progress. However, the incidence and mortality rates among cancer patients are still extremely high, at approximately 20,5 % and 10,6 % for both sexes, respectively. This may be due to the heterogeneity of tumors, their special microenvironment, and the development of resistance to certain conventional therapies. The concept of immunotherapy provided a new perspective on patient treatment. The interaction of tumor cells with their microenvironment depends on different factors and conditions that promote …

A Hybrid Multifunctional Physicochemical Sensor Suite For Continuous Monitoring Of Crop Health, Nafize Ishtiaque Hossain, Shawana Tabassum

Electrical Engineering Faculty Publications and Presentations

This work reports a first-of-its-kind hybrid wearable physicochemical sensor suite that we call PlantFit for simultaneous measurement of two key phytohormones, salicylic acid, and ethylene, along with vapor pressure deficit and radial growth of stem in live plants. The sensors are developed using a low-cost and roll-to-roll screen printing technology. A single integrated flexible patch that contains temperature, humidity, salicylic acid, and ethylene sensors, is installed on the leaves of live plants. The strain sensor with in-built pressure correction capability is wrapped around the plant stem to provide pressure-compensated stem diameter measurements. The sensors provide real-time information on plant health …

Incorporation Of Poly(Tfema) In Perovskite Thin Films Using A Supercritical Fluid, Kasey Handy, Gary C. Tepper

Mechanical and Nuclear Engineering Publications

A new process is reported for the incorporation of a fluoropolymer into a solid perovskite film. Poly(trifluoroethyl methacrylate) [CH₂C(CH₃)(CO₂CH₂CF₃)]_n was delivered to methylammonium lead iodide (CH₃NH₃PbI₃) perovskite films by crystallizing the film in supercritical carbon dioxide/ethanol containing the dissolved fluoropolymer. The surface was characterized before and after fluoropolymer exposure using scanning electron microscopy, Raman spectroscopy, and contact angle measurements. The results indicate that the fluoropolymer was incorporated into the perovskite film during the supercritical fluid crystallization process. The incorporation of a hydrophobic fluoropolymer …

Disrupting Engineering Education, Euan D. Lindsay, Roger G. Hadgraft, Fiona Boyle, Ron Ulseth

Integrated Engineering Department Publications

Traditional engineering education approaches are recognizable around the world – lectures, tutorials, laboratories, some projects. With the emergence of Industry 4.0, the world in which engineers practice is evolving at an ever-increasing rate, combining a greater focus on complex sociotechnical problems with new technologies and increasingly powerful design tools. In general, the engineering curricula have not adapted quickly to this change, but there is a shift in expectations of who and what engineering students should be. Engineering curricula are becoming more flexible, as are the learning environments in which they are implemented. This chapter draws upon the Doblin 10 types …

Supporting Women In Engineering And Technology Through A Collaborative Practice And Support Network Using Targeted Interventions, Michelle Looby, Marie Armstrong, Una Beagon, Emma M Dunne, Svetlana Hensman, Farrah Higgins, Paula Kelly, Isabelle Killane, Susan Lynott, Orla Mcmahon, Bahareh Pahlevanzadeh

Practice Papers

Despite ongoing efforts to recruit and retain women in third level engineering programmes in Ireland, there is still a lack of diversity in these programmes with typically fewer than 20% of students being female. This paper will describe the evolution of a female focused university wide network called WITU (Women in Technology United), which aims to retain female students in engineering and technology programmes, and to increase the number of gender minorities coming onto these programmes. It is also a response to the Sustainable Development Goals, particularly, SDG 4 (quality education), and SDG 5 (gender equality), and addresses actions highlighted …

Detection Of Truthful, Semi-Truthful, False And Other News With Arbitrary Topics Using Bert-Based Models, Elena Shushkevich, John Cardiff, Anna Boldyreva

Conference Papers

Easy and uncontrolled access to the Internet provokes the wide propagation of false information, which freely circulates in the Internet. Researchers usually solve the problem of fake news detection (FND) in the framework of a known topic and binary classification. In this paper we study possibilities of BERT-based models to detect fake news in news flow with unknown topics and four categories: true, semi-true, false and other. The object of consideration is the dataset CheckThat! Lab proposed for the conference CLEF-2022. The subjects of consideration are the models SBERT, RoBERTa, and mBERT. To improve the quality of classification we use …

The “Who” In Engineering: Sociotechnical Engineering As Memorable And Relevant, Diana A. Chen, Marissa H. Forbes, Gordon D. Hoople, Susan M. Lord, Joel Alejandro Mejia

School of Engineering: Faculty Scholarship

Does emphasizing the role of people in engineering influence the memorability of engineering content? This study is part of a larger project through which our team developed a new undergraduate energy course to better reflect students’ cultures and lived experiences through asset-based pedagogies to help students develop a sociotechnical mindset in engineering problem solving. In this study, students in the class were invited to participate in semi-structured interviews (n=5) to explore our effectiveness in helping them develop a sociotechnical mindset around energy issues and conceptualize engineering as a sociotechnical endeavor. This study focuses on an activity during the interview where …

Controlled Release Of Flurbiprofen From 3d-Printed And Supercritical Carbon Dioxide Processed Methacrylate-Based Polymer, Truc T. Ngo, Jae D. Kim

School of Engineering: Faculty Scholarship

The ability to engineer and predict drug release behavior during treatment is critical to the design and implementation of effective drug delivery systems. In this study, a drug delivery system consisting of a methacrylate-based polymer and flurbiprofen was studied, and its release profile in a controlled phosphate-buffered saline solution was characterized. The polymer, which was 3D printed and processed in supercritical carbon dioxide under different temperature and pressure settings, showed sustained drug release over a prolonged period. A computer algorithm was used to determine the drug release time duration before reaching steady state and the maximum drug release at steady …