Digital Commons Network^™

The Standard For Assessing Water Resistance Properties Of Lubricating Grease Using Contact Angle Measurements, Koottaparambil Lijesh, Roger A. Miller, Raj Shah, Khosro Shirvani, Michael M. Khonsari

Faculty Publications

Many grease-lubricated machines operate in wet environments, and are vulnerable to contamination because of water exposure. Reports suggest that even the presence of 1% water in grease reduces the life of a bearing by 90%. Nevertheless, only a few qualitative tests and standards are available to characterize the water resistance properties of greases. In this paper, we propose a standard for evaluating the water resistance properties of greases by studying their hydrophobic and hydrophilic nature via a custom-designed apparatus for measuring the grease contact angle. In this approach, a water droplet is dispensed onto the surface of the grease and …

In Situ Prediction Of Metal Fatigue Life Using Frequency Change, Ali Mahmoudi, Mohammad A. Amooie, Lijesh Koottaparambil, Michael M. Khonsari

Faculty Publications

A reliable technique for rapid prediction of the remaining useful life (RUL) of components experiencing fatigue degradation is introduced. The approach is based on measuring the temperature signature of a component upon rapidly changing its operating frequency for a short period of time. The temperature variations caused by alterations in plastic work rate are correlated to the loading history. The efficacy of the approach is investigated by conducting a series of axial fatigue tests on stainless steel 316 specimens. The material characterization involves subjecting the material to a constant amplitude fatigue load at 4 Hz and 12 Hz frequencies. The …

Comparative Analyses Of Covariance Matrix Adaptation And Iterative Ensemble Smoother On High-Dimensional Inverse Problems In High-Resolution Groundwater Modeling, Shuo Yang, Frank T.C. Tsai, Peter Bacopoulos, Christopher E. Kees

Faculty Publications

Parameter estimation is an inverse problem which is crucial to reliable groundwater model predictions and management. Numerous techniques have been developed to address this challenging problem. This study aims to compare the performance of a stochastic optimization method, covariance matrix adaptation-evolution strategy (CMA-ES), and a data assimilation method, Levenberg-Marquardt based iterative ensemble smoother (ES-LM), on solving inverse problems in groundwater modeling. This study also presents a parallelization strategy to accelerate their implementation. The comparative analysis involves synthetic inverse problems and a real-world case study of calibrating a high-resolution groundwater model. Results from the synthetic problems suggest that both the CMA-ES …

Modeling And Compensating Of Noise In Time-Of-Flight Sensors, Bryan Rodriguez

Electrical Engineering Theses and Dissertations

Three-dimensional (3D) sensors provide the ability to perform contactless measurements of objects and distances that are within their field of view. Unlike traditional two-dimensional (2D) cameras, which only provide RGB data about objects within a scene, 3D sensors are able to directly provide depth information for objects within a scene. Of these 3D sensing technologies, Time-of-Flight (ToF) sensors are becoming more compact which allows them to be more easily integrated with other devices and to find use in more applications. ToF sensors also provide several benefits over other 3D sensing technologies that increase the types of applications where ToF sensors …

Decreasing Teacher Burnout, Sara Wobig

Master's Theses & Capstone Projects

Teacher burnout is on an unprecedented rise. Many teachers are experiencing burnout early in their careers. Teachers in Campbell County School District, located in Gillette, Wyoming, are experiencing this at an alarming rate. Teachers at Conestoga Elementary School are experiencing stress and burnout related to student behaviors and increased duties placed upon them. The following school improvement plan is designed to help teachers reduce daily stress and set boundaries. This improvement plan is set to take place during the 2023-2024 school year. Mental health and well-being are an area that is focused on helping students. Teachers are often overlooked and …

X-Ray Analysis Of An Ancient Brick To Determine Its Origin, Jenna E. Heinen, Joshua Sebree

Fall 2023 - Chemical Analysis Class Projects

• This research is focused on studying an ancient brick of unknown origin which is housed in the University of Northern Iowa Museum
• It is theorized to be from Egypt during the time of the Israelite’s enslavement
• There are many disputes about the above claim; others believe it could be from Mesopotamia long after the time of Israelites lived in Egypt
• A museum artifact, determining the history and origin of this brick to a better understanding of its meaning and significance for historians and museum goers alike.

Erosion Resistant Rock Shoulder, Chung R. Song, Richard L. Wood, Basil Abualshar, Mark O'Brien, Bashar Al-Nimri, Mitra Nasimi

Nebraska Department of Transportation: Research Reports

Highway shoulder rocks are exposed to continuous erosion force due to unexpected floodings caused by climate change. The evaluation methods of the erosion resistance of highway shoulder rocks are not currently well-developed. This study developed a new large-scale testing device, the University of Nebraska-Lincoln Erosion Testing Bed (UNLETB), which has the capability of testing the shoulder gravels. Different gradations were tested using UNLETB, and the results distinguished a high-resistant group and a low-resistant group. The low resistant group was treated with different binding agents: Ammonium Lignosulfonate (LIGNO10), Soybean Soap Stock, and DirtGlue. The treated samples showed better erosion resistance based …

Utrgv Commencement – Fall 2023, The University Of Texas Rio Grande Valley

UTRGV Commencement Programs

No abstract provided.

Delivering The Palestinians To Israel: The Lasting Effects Of The 1973 War On The Palestinian Question, Khaled Elgindy

Faculty Journal Articles

In the years following the creation of Israel, the United States became the game master of the Arab-Israeli peace process. For Palestinians, this meant that they would not have a seat at the table for decades to come.

Fall 2023 - Enrollment Profile Report, Systems Intelligence And Data Analytics, University Of Nebraska At Omaha

Enrollment Reports

This Enrollment Profile Report provides administrative- and delivery-site information on enrollment headcount and student credit hours, as well as the demographic characteristics of enrolled students. Delivery-site reporting counts all students, including those in UNL programs delivered at UNO, but excludes UNO programs delivered in Lincoln (CPACS programs). Administrative-site reporting counts students enrolled in UNO programs only (including the CPACS programs delivered in Lincoln). The purpose of this profile is to provide the undergraduate and graduate enrollments and student credit hour information by college or equivalent academic unit, class, gender and ethnicity. A glossary at the end of the report provides …

Fall 2023 Campus Enrollment Indicators Report Tables 1-3, Systems Intelligence And Data Analytics, University Of Nebraska At Omaha

Enrollment Reports

No abstract provided.

Science Education News, Fall 2023, University Of Northern Iowa. Science Education Program.

Science Education News

Contents:

--- A Message from the Director of Science Education, Lawrence Escalada
--- Faculty Profile: Karen Breitbach
--- UNI's Science Education MA Program Now Accepting Applications for Summer 2024
--- Retirement: Lyn Countryman
--- UNI Science Education Update Conference
--- UNI Student Chapter of the National Science Teachers Association
--- Yager Science Education Resources & Outreach
--- OpenSciEd
--- New Next Gen FOSS Science Kits Ready for checkout
--- Iowa Secondary Energy Curriculum (ISEC)
--- Student Profiles: Catherine Lindley; Greta Birch; Blake Bixby
--- Iowa’s Emerging Water Quality Issues: Contamination to Recreation
--- OpenSciEd Workshops
--- Support UNI Science Education

Indicium Ex Machina: Unstructured Sentencing And Disparate Outcomes In Canada, Damilola Awotula

LLM Theses

Recent advancements in artificial intelligence have caused a wave of technological normality. As expected, the criminal justice system, and more increasingly, criminal sentencing is seeing a trend of “technosolutionism” due to real concerns about unjustified disparity. Truly, artificial intelligence has the prospect of making the sentencing process more effective, value-driven, consistent, and predictable. However, relying on the assumption that using such a system may require being confined to the normative sentencing traditions of each country, this thesis argues that there are crucial questions to be addressed about how this technological normality fits within the normative pillars of extant legal principles, …

Towards Effective Governance Of Marine Geoengineering In West Africa: Aligning With Global And Regional Best Practices, Abdul Hafez Mahamah

LLM Theses

The impacts of climate change have compelled humanity to produce innovative ways of counteracting this phenomenon. Marine geoengineering technologies are regarded as an avenue to forestall climate change. However, these technologies pose a danger to the environment and threaten the survival of living organisms and humanity. The deployment of these technologies could exacerbate the adverse impacts that climate change has on the environment. Using doctrinal, legal history, and comparative legal analysis, this thesis studies how West Africa can ensure the effective governance of marine geoengineering activities in the subregion. The study examines the global and selected regional governance regimes and …

Coupled Wellbore-Reservoir Modelling To Evaluate Co2 Injection Rate Distribution Over Thick Multilayer Storage Zones, Mohamed Abdelaal, Mehdi Zeidouni

Faculty Publications

Technical and economic feasibility of Geologic CO2 Storage (GCS) projects requires maximizing the amount of stored CO2 per unit pore space of the storage zone per well. Considering injection through a fully penetrating vertical well in a multi-layer thick aquifer, CO2 would be unevenly distributed over the aquifer thickness, underutilizing the available pore space. In this work, we use coupled wellbore-reservoir modelling to investigate the interplay between the parameters that control CO2 pore-space filling. Flow capacity profile and gravity/buoyancy override are the primary factors controlling CO2 flux into a layered system. In addition, a higher fraction of CO2 would flow …

Ipulse: October 2023, Lynn University

Student Newspapers

Issues:

• October 2023 [Fall Week #2]: A Fresh Start for Women's Lacrosse; Let's Talk: Life as a Therapist & Lynn Alumna; Unhealthy Diets and Student-Athletes; Crafting Up TikTok; Savoring Spain: A Study Abroad Experience; Unity Engine Developers Apologize for Policy Change; To Strike or Not to Strike: That is the Question; Residence Halls at Lynn
• October 2023 [Fall Week #3]: A Professor's Passport to Academics; The Digital Marketing Perspective; Pura Vida Miami: Now in Boca Raton!; Paw-Sitive Impact: Emotional Support Animals and Mental Health; The Perfect Weekend Escape From Boca; A Ray of Hope; Trump 2.0; From Degrees to the …

Fogelman Focus Fall 2023

Fogelman Focus

No abstract provided.

Deconstructing The Software Factory: A Practical Application Of Interorganizational Network Analysis, Zachary O. Ryan, Mark Reith, Clay Koschnick

Faculty Publications

Over the past 5 years, the number of DoD software organizations that employ nontraditional organizational structures has increased. These organizations, commonly referred to as software factories, often employ the network-based organizational structures found within high-technology industries. This article details ways in which network analysis techniques can be used to create a big picture view of these nontraditional organizations. Drawing on methodologies employed by network researchers, the authors develop and present an interorganizational analysis process that highlights a program's social and economic structures. Following the case history approach, they demonstrate the applicability of this approach by analyzing an emergent DoD software …

Genomic Variations Explorer (Genvarx): A Toolset For Annotating Promoter And Cnv Regions Using Genotypic And Phenotypic Differences, Yen On Chan, Jana Biová, Anser Mahmood, Nicholas Dietz, Kristin Bilyeu, Mária Škrabišová, Trupti Joshi

Biomedical Sciences

The rapid growth of sequencing technology and its increasing popularity in biology-related research over the years has made whole genome re-sequencing (WGRS) data become widely available. A large amount of WGRS data can unlock the knowledge gap between genomics and phenomics through gaining an understanding of the genomic variations that can lead to phenotype changes. These genomic variations are usually comprised of allele and structural changes in DNA, and these changes can affect the regulatory mechanisms causing changes in gene expression and altering the phenotypes of organisms.Inthisresearchwork,wecreatedtheGenVarXtoolset,thatisbacked by transcription factor binding sequence data in promoter regions, the copy number variations …

Friends Of The Libraries Newsletter, Fall 2023, Freinds Of The Libraries

Friends of the Libraries Newsletter

This five page newsletter details events held by the Friends of the Libraries and highlights events, news, and materials in the Wright State University Libraries

Mindfulness And Workplace Safety: An Integrative Review, Zihan Liu, Kevin Hoff, Erica Baranski, Galen Snyder, Rhona Flin, Peggy Lindner, Christiane Spitzmueller

Engineering Management and Systems Engineering Faculty Research & Creative Works

Mindfulness has recently gained popularity in applied settings to enhance workplace safety, especially in safety-critical occupations such as healthcare and construction. In this review, we synthesize existing research across disciplines to establish a theoretical model of mindfulness and safety. Based on 32 empirical studies, we first summarize and critically analyze how mindfulness and safety are conceptualized and operationalized in the literature. We then consolidate empirical findings and conceptual arguments and draw upon the job demands–resources model to propose a theoretical model linking the basic benefits of mindfulness to safety-related job demands. Specifically, we propose that mindfulness (a) improves detection of …

Rooted In Grant County, Jenna Gerig

Public Relations Student Projects

Because the goal of this campaign is to promote Grant County assets, initial research sought to assess communication throughout the county, gather insight on the impact of churches, and accumulate information on how to best retain its college students. Research also sought to identify the personas of Grant County residents to discover their values and beliefs. Additional research helped determine the most appealing assets, including churches and nonprofits, universities, parks and venues, events, and affordable living. Additionally, a survey was conducted to understand why students who attend colleges in Grant County choose to leave the county upon graduation.

Unhsc Street Sweeping Credit Calculator, Unh Stormwater Center

UNH Stormwater Center

No abstract provided.

Electronic Resources Updates - 2023 Q3, Melanie Mcgurr, Gregg Harris

Electronic Resources Quarterly Updates

No abstract provided.

Chantel Foretich Panel, Chantel Foretich

Hacking the Library

No abstract provided.

Hacking The Library Exhibition Designs, Karen Diaz

Hacking the Library

The hacker ethos in the positive sense is about the ability to deconstruct and reconstruct information systems. Hacking starts with reconceptualizing libraries. Libraries are now beyond the book. As libraries evolve into a new sort of space --still a space for research, learning and study-- but also for community engagement and collaboration, library exhibits present a unique opportunity for both collaborating exhibitors and library users. Artists engage with libraries creatively through artist residencies, installations, using discarded library materials in their work, collaborative workshops, digital collections remixing, performances and more. Hacking the Library will present artwork that highlights the intersecting values …

Alca: Comparing Icelandic Aluminum Emissions To The World Through Statistical Reasoning And Programming-Based Predictive Tools, Markus Sujansky

Iceland: Climate Change and The Arctic

Aluminum production is a process that is heavily reliant on large amounts of available

energy, and therefore lends itself to locations where energy production is abundant. Iceland, as a global leader in Geothermal and Hydropower energy, has experienced an industrial boom in the past 20-30 years, quickly becoming a top 10 worldwide aluminum producer. However, although the three main companies that operate their smelting processes in the country are powered by clean energy, they still import raw materials from all over the world, with source locations ranging from Brazil to Australia. In order to find out if the long distance …

Investigating Thin Film Materials For Room Temperature Quantum Applications, Farhana Anwar

Dissertations (1934 -)

Quantum defects in thin film structures are a promising avenue for quantum applications. These defects, often resulting from structural anomalies lead to distinct electronic and optical characteristics within the host material. The absence of atoms in a crystal structure, commonly known as crystal vacancies, can significantly modify a material's quantum properties. This research investigated cost-effective materials compatible with complementary metal oxide semiconductor (CMOS) processes that possess quantum defects feasible for room-temperature operations. The approach encompasses a thorough evaluation of the potentialities of AlN, Al2O3, and SnOx for quantum-enhanced applications. Initially, we deposited thin films of AlN, Al2O3, and SnOx onto …

Soil Adsorption Of Heavy Metals To Protect Groundwater Near Refinery Wastewater Discharge Points, Hamid A. Al-Falahi, Ferdous A. Jabir, Muthanna H. Al-Dahhan

Chemical and Biochemical Engineering Faculty Research & Creative Works

This study presents a strategy to manage the discharge of wastewater, which is either partially treated or untreated, to safeguard the groundwater reserves in the region. a case study involving Ad Diwaniyah refinery wastewater disposal into an adjacent desert was utilized to evaluate the influence of soil adsorption on the attenuation of Pb, Cu, and Cd ion concentrations. Investigation of competitive adsorption of heavy metal ions (Pb2+, Cu2+, and Cd2+) in Dolomite-Limestone soil was conducted through batch and column methods. the adsorption behavior of the bivalent metal cations was observed to be pH dependent. However, the competitive extraction of the …

Expert Panel Curation Of 113 Primary Mitochondrial Disease Genes For The Leigh Syndrome Spectrum, Elizabeth M Mccormick, Kierstin Keller, Julie P Taylor, Alison J Coffey, Lishuang Shen, Danuta Krotoski, Brian Harding, Xiaowu Gai, Marni J Falk, Zarazuela Zolkipli-Cunningham, Shamima Rahman

Children’s Nutrition Research Center Staff Publications

Objective: Primary mitochondrial diseases (PMDs) are heterogeneous disorders caused by inherited mitochondrial dysfunction. Classically defined neuropathologically as subacute necrotizing encephalomyelopathy, Leigh syndrome spectrum (LSS) is the most frequent manifestation of PMD in children, but may also present in adults. A major challenge for accurate diagnosis of LSS in the genomic medicine era is establishing gene-disease relationships (GDRs) for this syndrome with >100 monogenic causes across both nuclear and mitochondrial genomes.

Methods: The Clinical Genome Resource (ClinGen) Mitochondrial Disease Gene Curation Expert Panel (GCEP), comprising 40 international PMD experts, met monthly for 4 years to review GDRs for LSS. The GCEP …