Engineering Commons^™

Comprehensive Review Of Heat Transfer Correlations Of Supercritical Co2 In Straight Tubes Near The Critical Point: A Historical Perspective, Nicholas C. Lopes, Yang Chao, Vinusha Dasarla, Neil P. Sullivan, Mark Ricklick, Sandra Boetcher

Publications

An exhaustive review was undertaken to assemble all available correlations for supercritical CO2 in straight, round tubes of any orientation with special attention paid to how the wildly varying fluid properties near the critical point are handled. The assemblage of correlations, and subsequent discussion, is presented from a historical perspective, starting from pioneering work on the topic in the 1950s to the modern day. Despite the growing sophistication of sCO2 heat transfer correlations, modern correlations are still only generally applicable over a relatively small range of operating conditions, and there has not been a substantial increase in predictive capabilities. Recently, …

Autonomous Unmanned Aerial Vehicle Navigation Using Reinforcement Learning: A Systematic Review, Fadi Almahamid, Katarina Grolinger

Electrical and Computer Engineering Publications

There is an increasing demand for using Unmanned Aerial Vehicle (UAV), known as drones, in different applications such as packages delivery, traffic monitoring, search and rescue operations, and military combat engagements. In all of these applications, the UAV is used to navigate the environment autonomously --- without human interaction, perform specific tasks and avoid obstacles. Autonomous UAV navigation is commonly accomplished using Reinforcement Learning (RL), where agents act as experts in a domain to navigate the environment while avoiding obstacles. Understanding the navigation environment and algorithmic limitations plays an essential role in choosing the appropriate RL algorithm to solve the …

Speeding Up The Quantification Of Contrast Sensitivity Functions Using Multidimensional Bayesian Active Learning, Shohaib Shaffiey

McKelvey School of Engineering Graduate Student Theses & Dissertations

No abstract provided.

Modeling Solvent Extraction Of Lignin From Hardwoods, Su Pan

McKelvey School of Engineering Graduate Student Theses & Dissertations

This study interprets the observed behavior of solvent extraction of lignin from hardwoods by adapting the framework of the FLASHCHAIN theory (Niksa and Kerstein, 1991; Niksa, 2017). A constitution submodel specifies distributions of molecular weight and reactive sites for native lignin. The model simulates delignification as depolymerization of lignin macromolecules into fragments small enough to be soluble. This process competes with intrachain condensation that consumes labile bridges without forming new fragments, and with recombination that forms larger chains and inhibits further depolymerization. After the soluble fragments are transported from the particle into the bulk solvent, all chemistry continues as long …

Parametric Design Of A Manifold For A Hollow Micropillar Evaporator For Use In High Heat Flux Applications, Alex Dutton

McKelvey School of Engineering Graduate Student Theses & Dissertations

With the failure of Dennard Scaling and changes in electronics packaging leading toward 2.5 and 3D packages, the current methods of thermal management are failing to keep up with rising heat fluxes. In order to manage these rising heat fluxes, engineers and scientists are looking towards two phase cooling and microchannel flows.

Many forms of novel thermal management are currently being investigated as means to address the thermal challenges present in modern microelectronics, including flow boiling, pool boiling, and direct liquid cooling. One technology of interest is evaporative cooling using continuously fed micro-droplets. High evaporation rates can be achieved by …

Cellular Bioenergetics: Experimental Evidence For Alcohol-Induced Adaptations, Liz Simon, Patricia E. Molina

School of Medicine Faculty Publications

At-risk alcohol use is associated with multisystemic effects and end-organ injury, and significantly contributes to global health burden. Several alcohol-mediated mechanisms have been identified, with bioenergetic maladaptation gaining credence as an underlying pathophysiological mechanism contributing to cellular injury. This evidence-based review focuses on the current knowledge of alcohol-induced bioenergetic adaptations in metabolically active tissues: liver, cardiac and skeletal muscle, pancreas, and brain. Alcohol metabolism itself significantly interferes with bioenergetic pathways in tissues, particularly the liver. Alcohol decreases states of respiration in the electron transport chain, and activity and expression of respiratory complexes, with a net effect to decrease ATP content. …

Developing Optical Devices And Projects For Teaching Engineering, Nathan D. Lemke, John Mccauley, Tristan E. Noble, Grace Riermann, Ellesa St. George, Nathan C. Lindquist, Keith R. Stein, Karen Irene Rogers

Physics and Engineering Faculty Publications

We are creating a suite of tools and techniques based on optics to be used for teaching a variety of engineering topics. Each tool is intended for non-expert use and without the need for high-end equipment such as vibration-free optical tables. Here we report progress on three such tools: image-plane digital holography for measuring mechanical deformation; schlieren imaging of convective flows using a smart phone; and a simple optical communication protocol using LabVIEW. We will present the designs of the tools and preliminary results from teaching engineering labs and projects with these tools. Specific courses impacted to date include Fluid …

Improving The Reliability Of Visual Inspections Conducted By Environmental Health And Safety Professionals, On A Hyperscale Data Centre Construction Site, Alex A. Schouten, Victor Hrymak

Conference papers

The conduct of visual inspections on construction sites is of crucial importance for workplace safety. This is because visual inspection is the primary method by which construction site hazards are routinely observed, monitored and controlled. However, there is no consensus guidance as to how such visual inspections should be conducted. This is resulting in many observable hazards going unseen and therefore not being appropriately managed on construction sites worldwide. In an attempt to improve the reliability of visual inspection, this study presents results from an innovative method called systematic visual inspection which utilises an iterative set eye scan pattern during …

Navigating The Virtual Landscape: Implementing A Pedagogical Framework In A Virtual Summer Engineering Course To Enhance Students' Academic Development, Eleazar Marquez, Samuel Garcia

Mechanical Engineering Faculty Publications

In this evidence-based practice paper, the recently established CIRE educational model was incorporated, and modified, to establish an alternative pedagogical framework for a virtual, fast-paced summer engineering course in a private university in Texas. Transitioning to fully online courses in the wake of COVID-19 required a rapid modification of traditional pedagogical methods to overcome challenges such as the lack of academic resources and established campus practices, while simultaneously ensuring the academic and social development of students. In this regard, a pedagogical framework known as the CIRE model – which is the acronym for Communication, Initiation, Reduction, and Extension – was …

Midterm Oral Exams Add Value As A Predictor Of Final Written Exam Performance In Engineering Classes: A Multiple Regression Analysis, Minju Kim, Celeste Pilegard, Huihui Qi, Curt Schurgers, Marko Lubarda, Saharnaz Baghdadchi, Alex Phan

Psychology Faculty Articles and Research

What is gained when midterm oral exams are implemented in the undergraduate engineering classroom? This research paper examines whether midterm oral exam scores add value above and beyond midterm written exam scores in predicting students’ final written exam scores. The purpose of this study is to evaluate the potential utility of oral exams as formative assessments: if oral exam scores provide additional information beyond written exam scores, they may add meaningful value for students and instructors. The current study investigates this question using data from 10 undergraduate engineering classes (N = 925), representing 6 different courses and 5 different instructors. …

In-Person Instruction Or Remote Learning?: Understanding Students' Learning Experiences During Covid-19, Eleazar Marquez, Samuel Garcia

Mechanical Engineering Faculty Publications

Research attests that student success in engineering education is cultivated largely due to classroom environments, academic inclusion, and engagement in undergraduate research. It is further revealed that the social and academic fabric of the institution such as academic advising, peer tutoring, disability services, and outdoor recreational programs is essential towards fostering well-being, recruitment, retention, and student success. However, these studies were conducted in a period in which students experienced traditional face-to-face instruction. In the wake of COVID-19, most institutions responded by terminating in-person instruction, mandating to seek off-campus housing, and shifting to a fully remote context. As such, educators were …

Do Agrivoltaics Improve Public Support For Solar? A Survey On Perceptions, Preferences, And Priorities, Alexis Pascaris, Chelsea Schelly, Mark Rouleau, Joshua Pearce

Michigan Tech Publications, Part 1

Agrivoltaic systems integrate agricultural production with solar photovoltaic electricity generation. Given the proven technical, economic, and environmental co-benefits provided by agrivoltaic systems, increased proliferation is anticipated, which necessitates accounting for the nuances of community resistance to solar development on farmland and identifying pathways for mitigation. Minimizing siting conflict and addressing agricultural communities’ concerns will be key in continued deployment of agrivoltaics, as localized acceptance of solar is a critical determinant of project success. This survey study assessed if public support for solar development increases when energy and agricultural production are combined in an agrivoltaic system. Results show that 81.8% of …

Between Resiliency And Adaptation, Catherine Joseph

IntAR Interventions Adaptive Reuse

No abstract provided.

Water As Medium Adapting Water Towers, Inge Donné, Bie Plevoets

IntAR Interventions Adaptive Reuse

No abstract provided.

A Metropolitan Park Of Water, Renzo Lecardane, Paola La Scala

IntAR Interventions Adaptive Reuse

No abstract provided.

Environmental Identity The São Paulo Rivers Case, Anne Schraidber

IntAR Interventions Adaptive Reuse

No abstract provided.

T-House Water As Medium In Interventions And Adaptive Reuse, Katherine Bambrick Ambroziak, Brian Ambroziak

IntAR Interventions Adaptive Reuse

No abstract provided.

The Blue Line Reusing Traditional Rural Water Management Systems, Francesco Garofalo

IntAR Interventions Adaptive Reuse

No abstract provided.

The Hammam Of Erbil Citadel A Confluence Of Past, Present, And Future, Ahmed Abbas, Karen Lens

IntAR Interventions Adaptive Reuse

No abstract provided.

(Re)Made By Water Obsolescence, Urban Nomadism And The New World Mall, Bangkok, Gregory Marinic

IntAR Interventions Adaptive Reuse

No abstract provided.

The Oyster Blocks Project Subaqueous Interventions For Non-Humans, Michael Leighton Beaman

IntAR Interventions Adaptive Reuse

No abstract provided.

Back To The Future The Spatial Dimension Of Water Management, Kees Lokman

IntAR Interventions Adaptive Reuse

No abstract provided.

The Edge Condition Re-Use Of Industrial Heritage On Urban Waterfronts, Graeme Evans, Naomi House

IntAR Interventions Adaptive Reuse

No abstract provided.

Breathe, Look, Stand Up The Second Life Of Water Infrastructure, Lindsay Winstead

IntAR Interventions Adaptive Reuse

No abstract provided.

The Tears Of The U.S.S. Arizona A Tomb That Lives, Alexander Ford, Nicholas Gervasi

IntAR Interventions Adaptive Reuse

No abstract provided.

Picturing Space The Manipulation Of Architectural Imagery, Jeffrey Katz

IntAR Interventions Adaptive Reuse

No abstract provided.

Converging In Space Art, Architecture, And Urbanism In P.S. 1’S Rooms Exhibition, Cecilia Thornton-Alson

IntAR Interventions Adaptive Reuse

No abstract provided.

Figural Identity In Adaptive Reuse Preserved, New, And Hybrid, Marie S.A. Sorenson

IntAR Interventions Adaptive Reuse

No abstract provided.

From Rust To Reuse From Building To Community Through Instrument Making, Zeke Leonard

IntAR Interventions Adaptive Reuse

No abstract provided.

The Butterfly Effect Artist Itinerancy And Adaptive Reuse, Marion Wilson

IntAR Interventions Adaptive Reuse

No abstract provided.