Digital Commons Network^™

On The Effect Of Environmental Temperature On Fracture Fatigue Entropy, Mohammad A. Amooie, M. M. Khonsari

Faculty Publications

Fracture behavior of carbon steel 1018 operating in low-temperature environments is investigated. Specifically, fully-reversed bending experimental tests are performed to examine the efficacy of applying the concept of Fracture Fatigue Entropy (FFE) for predicting fatigue life at different environmental temperatures. A large cooling chamber was constructed that houses the entire bending test rig and maintains the environmental temperature at the desired value down to −10 °C. It is shown that under conditions tested, fatigue life improves at lower operating temperatures. Results also reveal that FFE remains nearly constant and can be used for reliable prediction of fatigue life. Illustrative examples …

Measured Spectral, Directional Radiative Behavior Of Corrugated Surfaces, Kyle S. Meaker, Ehsan Modfidipour, Matthew R. Jones, Brian D. Iverson

Faculty Publications

Spacecraft thermal control is entirely reliant upon radiative heat transfer with its surroundings for tem- perature regulation. Current methods are often static in nature and do not provide dynamic control of radiative heat transfer. As a result, modern spacecraft thermal control systems are typically ‘cold-biased’ with radiators that are larger than necessary for many operating conditions. Deploying a variable radiator as a thermal control technique in which the projected surface area can be adjusted to provide the appro- priate heat loss for a given condition can reduce unnecessary heat rejection and reduce power require- ments. However, the radiative behavior of …

White House Memo And Faculty Cvs, Ellen Amatangelo

Faculty Publications

This information was presented to the Subject Librarians Council. The "Memorandum for the Heads of Executive Departments and Agencies" from the Executive Office of the President concerning "Ensuring Free, Immediate, and Equitable Access to Federally Funded Research" was discussed. The presentation also includes a portion on how faculty publications are added the BYU's institutional repository.

Reviving A Dying Church: The Role Of Leadership, Jane Thayer

Faculty Publications

A pastor known for his church planting skills was brought into a declining/dying church in Maryland, USA, and with his leadership team, turned the church around in three-and-a-half years. A case study method was used to explore this pastor and congregation’s willingness to “pay the cost” to bring new people into the church. They focused on children’s ministry, evangelism, discipleship, prayer, small groups, meals, and vision—knowing why they engaged in each ministry.

The First Amendment And The Second Sex, Cristina Carmody Tilley

Faculty Publications

Modern American law describes speech in stereotypically masculine terms: it is a “marketplace” where participants “joust” for dominance. Predictably, today’s speech jurisprudence can be hostile to the female voice, implicitly condoning gendered death threats, rape threats, doxing, and trolling as the necessary price of a vibrant national discourse. Unpredictably, the American Civil Liberties Union (“ACLU”) and its leading women drafted the blueprint for this modern speech edifice. The First Amendment and the Second Sex traces the ACLU campaign to dismantle a nineteenth-century speech regime that silenced some men while protecting many women. And it suggests that ACLU feminists—intent on securing …

A Renewed Analysis Of The Expedited Actions Rules In Texas Courts, Paula Hannaford-Agor, Lindsey Wylie, Miriam Hamilton, Brittany K. T. Kauffman, Logan Cornett, James Swearingen, Michael Houlberg, Jeffrey Tsunekawa, Michael Smith, Sheri Woodfin,

Faculty Publications

In October 2021, the Texas Office of Court Administration (OCA) and the National Center for State Courts (NCSC) returned to the question of whether the Expedited Action Rules (EARs) adopted in 2012 in Texas were continuing to have a positive impact on civil case processing. With new funding from the State Justice Institute (SJI), the NCSC, OCA, and the Institute for the Advancement of the American Legal System at the University of Denver, set out to replicate a 2016 study. Using the same research methods, the project team gathered data from the district and county courts in Dallas, Fort Bend, …

Policy Comparison Of Lead Hunting Ammunition Bans And Voluntary Nonlead Programs For California Condors, Robin M. Rotman, John H. Schulz, Samantha Totoni, Sonja A. Wilhelm Stanis, Christine Jie Li, Mark Morgan, Damon M. Hall, Elisabeth B. Webb

Faculty Publications

The endangered California condor (Gymnogyps californianus) is negatively affected by lead poisoning from spent lead‐based hunting ammunition. Because lead poisoning is the primary mortality factor affecting condors, the California Fish and Game Commission banned lead hunting ammunition during 2008 in the southern California condor range followed by a statewide ban implemented in 2019. In contrast, the Arizona Game and Fish Department instituted an outreach and awareness program encouraging voluntary use of nonlead hunting ammunition in the northern portion of the state during 2005 and a similar program was launched in Utah during 2012. The juxtaposition of policy tools provided a …

How Law Students' Part-Time Legal Employment Can Help Employers Improve Their Own Writing Skills, Douglas E. Abrams

Faculty Publications

Professor Abrams authors a column, Writing it Right, in the Journal of the Missouri Bar. In a variety of contexts, the column stresses the fundamentals of quality legal writing — conciseness, precision, simplicity, and clarity.

Exodus Allusions In The Midsection Of The Gospel Of Matthew, Cedric E. W. Vine

Faculty Publications

Matthean scholarship is divided as to whether the first recipients of the Gospel considered themselves to be part of early formative Judaism. Within the context of this debate, this study calls for the recognition of multiple exodus allusions in the midsection of the Gospel. These allusions reveal an Evangelist who either anticipated the possible need for withdrawal from hostile host communities or, equally plausibly, affirmed an ongoing separation process.

Examination Of The Cumulative Risk Assessment And Nutritional Profiles Among College Ballet Dancers, Kenya Moore, Nancy A. Uriegas, Jessica Pia, Dawn M. Emerson, Kelly Pritchett, Toni M. Torres-Mcgehee

Faculty Publications

This study examined female collegiate ballet dancers' ( = 28) Female Athlete Triad (Triad) risk via the Cumulative Risk Assessment (CRA) and nutritional profiles (macro- and micronutrients; = 26). The CRA identified Triad return to play criteria (RTP: Full Clearance, Provisional Clearance, or Restricted/Medical Disqualified) by assessing eating disorder risk, low energy availability, menstrual cycle dysfunction, and low bone mineral density. Seven-day dietary assessments identified any energy imbalances of macro- and micronutrients. Ballet dancers were identified as low, within normal, or high for each of the 19 nutrients assessed. Basic descriptive statistics assessed CRA risk classification and dietary macro- and …

Prestressed Steel-Concrete Composite I-Beams With Single And Double Corrugated Web, Mahmoud T. Nawar, Ayman El-Zohairy, Hassan M. Maaly, Mohammed Husain

Faculty Publications

Composite steel girders with concrete have been used for many years and advances in structural and fabrication technology have established their optimization. One of the changes in structural steel I-beams during the past few years has been the availability of web corrugation. The economic design of steel girders normally requires thin webs. Moreover, using externally prestressed tendons as a strengthening technique controls deflections and stresses. However, this strengthening technique causes shear buckling of the steel beams. In this study, the flexural behavior of externally prestressed composite steel-concrete I-beams with a single and double corrugated web was experimentally and numerically investigated. …

Dynamic Multi-Dimensional Numerical Transport Study Of Lithium-Ion Battery Active Material Microstructures For Automotive Applications, Joseph S. Lopata, Taylor R. Garrick, Fengkun Wang, Han Zhang, Yangbing Zeng, Sirivatch Shimpalee

Faculty Publications

In support of GM’s traction battery efforts, we derived and implemented a method to describe the electrochemical performance of a battery cell considering the nuances of the electrode microstructure at the anode and the cathode and the corresponding impact on the electrochemical transport in the solid and liquid phases. To assess the capability of the method, we compared model results from the microstructure framework with the commonly used continuum-level porous electrode model, commonly referred to as the pseudo-2-dimensional model, or the Newman Model. The microstructure modeling framework was applied to simulate the electrochemical and transport processes within the battery cell …

Differentiating The Edd And The Phd In Higher Education: A Survey Of Characteristics And Trends, Holly A. Foster, Steven Chesnut, James Thomas, Courtney Robinson

Faculty Publications

Purpose: Higher education, as a field of study, is one of the few programmatic areas that offer two doctoral degrees: The Doctor of Education (EdD) and the Doctor of Philosophy (PhD). In the United States, the two degrees are often conflated. Conversations, to this point, have done more to contribute to the theoretical debate than to operationally distinguish between the two degree paths.

Method: The current study analyzed data collected from a review of the 188 doctoral programs at 145 institutions listed with the Association for the Study of Higher Education (ASHE). Results: Results suggest that while there …

Ice-Crystal-Templated “Accordion-Like” Cellulose Nanofiber/Mxene Composite Aerogels For Sensitive Wearable Pressure Sensors, Wangwang Xu, Qinglin Wu, Jaegyoung Gwon, Jin Woo Choi

Faculty Publications

Exfoliated MXene nanosheets are integrated with cellulose nanofibers (CNFs) to form composite aerogels with high electric conductivity. The combination of CNFs and MXene nanosheets forms a unique “accordion-like” hierarchical architecture with MXene-CNF pillared layers through ice-crystal templating. Benefiting from the special “layer-strut” structure, the MXene/CNF composite aerogels have low density (50 mg/cm3), excellent compressibility and recoverability, as well as superior fatigue resistance (up to 1000 cycles). When being used as a piezoresistive sensor, the composite aerogel exhibits high sensitivity upon different strains, stable sensing performance with various compressive frequencies, broad detection range, and quick responsiveness (0.48 s). Moreover, the piezoresistive …

Investigation Of Electrically Isolated Capacitive Sensing Skins On Concrete To Reduce Structure/Sensor Capacitive Coupling, Emmanuel Ogunniyi, Alexander Vareen, Austin Downey, Simon Laflamme, Jian Li, Caroline Bennett, William Collins, Hongki Jo, Alexander Henderson, Paul Ziehl

Faculty Publications

Damage to bridges can result in partial or complete structural failures, with fatal consequences. Cracks develop in concrete infrastructure from fatigue loading, vibrations, corrosion, or unforeseen structural displacement. Effective long-term monitoring of civil infrastructure can reduce the risk of structural failures and potentially reduce the cost and frequency of inspections. However, deploying structural health monitoring technologies for crack detection on bridges is expensive, especially long-term, due to the density of sensors required to detect, localize, and quantify cracks. Previous research on soft elastomeric capacitors (SECs) has shown their viability for low-cost monitoring of cracks in transportation infrastructure. However, when deployed …

Florawear: Wearable Living Interface, Hye Yeon Nam, Janiece Campbell, Andrew M. Webb, Brendan Harmon

Faculty Publications

While nature can benefit people both mentally and physically, contemporary society has become increasingly disconnected from nature. To rebuild a stronger connection with nature in our everyday life, we introduce FloraWear, a do-it-yourself, wearable living interface, that enables people to easily and closely connect with plants. This pictorial introduces how knowledge is built and shared with others using hybrid craft and fabrication, illustrates the material experiments and design development for FloraWear, and discusses how it affects wearers. Then we summarize how FloraWear can help catalyze a shift in people's perspectives towards nature. By developing emotional ties to their wearable plants, …

Sootlib: A Soot Model Library For Combustion Simulation, Victoria B. Stephens, Joshua Bedwell, Alex J. Josephson, Keturah Oldham, David O. Lignell

Faculty Publications

Soot formation in combustion is an important process that affects radiative heat transfer, flame temperatures, and emissions with health and environmental impacts. Soot formation involves complex chemistry for nucleation, growth, oxidation, and coagulation processes. The soot particles vary widely in size and accurate modeling requires representation of the particle size distribution (PSD). Modeling soot is not trivial, and is only one of several physical processes active in combustion systems. This paper presents a software package called SootLib, which is an open-source library for modeling soot formation and other aerosol systems. SootLib is written in C++, is documented with Doxygen, and …

Simple Mathematical Equations For Calculating Oxidation Number Of Organic Carbons, Number Of Transferred Electrons, Oxidative Ratio, And Mole Of Oxygen Molecule In Combustion Reactions, Pong Yuen, Cheng Man Diana Lau

Faculty Publications

The oxidation number and number of transferred electrons are two paramount parameters in the study of redox reactions. Their calculations are both important and challenging. The oxidation number of organic carbons is used in organic chemistry, biochemistry, and applied chemistry. Combustion reaction is a classical type of redox reaction, in which the oxygen molecule (O2) is the oxidizing agent. In this article, the integration of three sets of relations is explored by using the method of balancing organic combustion: (i) number of transferred electrons and oxidation number of organic carbons, (ii) mole of oxygen molecule and number of transferred electrons, …

Electron Energization By Inertial Alfvén Waves In Density Depleted Flux Tubes At Jupiter, P. A. Damiano, P. A. Delamere, E.-H. Kim, J. R. Johnson, C. S. Ng

Faculty Publications

Juno satellite observations have illustrated substantial examples of broadband electron energization up to 105–106 eV levels. In order to explain these observations, we use a hybrid gyrofluid kinetic-electron model in an untilted dipolar topology to illustrate energization to high levels in weak current conditions by inertial Alfvén waves close to the Jupiter ionosphere for ambient plasma densities and magnetic field perturbations inferred from Juno satellite observations. The key to the high energization is the extremely low densities evident in the observations which necessitates the acceleration of electrons to very high velocities in order to carry the field-aligned current.

Analysis And Technical Optimization Of Processing Condition For Better Quality Of Robusta Coffee Production, Usman Ahmad, Khalimatus Sa’Diyah, Sathivel Subramaniam

Faculty Publications

The wet processing of robusta coffee starts with harvesting coffee cherries, followed by sorting the cherries, pulping, fermentation, washing, drying, hard skin hulling, bean sorting, and packaging. Soaking fruit before pulping is an alternative for coffee farmers to delay the pulping process if time does not al-low it. The fermentation process aims to remove mucus that is firmly attached to the hard skin. The addition of L. casei bacteria can accelerate the process but affect the final taste. This study aimed to optimize the duration of soaking and fermentation processes for obtaining coffee beans with a minimum number of unpeeled …

The Illinois Second Chance Expungement/Sealing Gap, Colleen Chien

Faculty Publications

No abstract provided.

A Comparative Study Of Texas–Mexico Border Vs. Non-Border Students’ Achievement On High-Stakes State Test: A Propensity Score Matching Method, Zhuoying Wang, Shifang Tang, Feng Luo

Faculty Publications

Texas–Mexico border region is a unique place where two countries and culture connected. We sought to investigate border school district students’ academic performance as measured by Texas standardized test: the State of Texas Assessments of Academic Readiness (STAAR). To do so, we first used propensity score matching (PSM) techniques to analyze data collected from a public database: Texas Assessment Management System (TAMS). Specifically, we provided a PSM analysis of nonborder and border school districts regarding their demographic characteristics [i.e., identified as a rural district, percentage of economically disadvantaged (ED) students, percentage of English learners (ELs), mobility rate, instructional hours, principal …

Lies,Damn Lies, And Kamikaze Lies: Protecting Falsehoods In The Name Of Truth, Doris Deltosto Brogan

Faculty Publications

Despite calls to reverse New York Times v. Sullivan and abandon the reckless disregard standard for public figure defamation cases--calls offered by two Supreme Court Justices, a number of legal scholars and some members of the popular press-- this article demonstrates that Sullivan’s protections have never been more relevant or more necessary, particularly in light of an epidemic of malicious, often strategic falsity, as well as overt assaults on the institutional press by powerful actors. We need Sullivan now more than ever. Further, for Sullivan to do its work effectively, it must be reinforced by two other legal protections: robust …

Maternal And Infant Outcomes Of Syrian And Palestinian Refugees, Lebanese And Migrant Women Giving Birth In A Tertiary Public Hospital In Lebanon: A Secondary Analysis Of An Obstetric Database, Stephen J. Mccall, Tanya C. El Khoury, Hala Ghattas Ph.D., Shady Elbassuoni, Mhd Hussein Murtada, Zeina Jamaluddine, Christine Haddad, Aya Hussein, Amina Krounbi, Jocelyn Dejong, Janoub Khazaal, Rabih Chahine

Faculty Publications

Objectives This study aims to assess whether the characteristics, management and outcomes of women varied between Syrian and Palestinian refugees, migrant women of other nationalities and Lebanese women giving birth at a public tertiary centre in Beirut, Lebanon.

Methods This was a secondary data analysis of routinely collected data from the public Rafik Hariri University Hospital (RHUH) between January 2011 and July 2018. Data were extracted from medical notes using text mining machine learning methods. Nationality was categorised into Lebanese, Syrian, Palestinian and migrant women of other nationalities. The main outcomes were diabetes, pre-eclampsia, placenta accreta spectrum, hysterectomy, uterine rupture, …

Team Moms And Tiger Moms: Formal Sports Participation And Closeness To Mothers: Supplementary Materials, Tom R. Leppard, Mikaela J. Dufur

Faculty Publications

Recent research highlights that relationships with parents are among those strengthened when youth play sports. This recent work, however, largely focuses on fathers, arguing that because of the persistent emphasis on masculinity in sporting spaces, youth sports might be especially effective at facilitating stronger relationships between fathers and children. This chapter asks how the mother-child dyad is influenced by youth formal participation in sports during their adolescence, including whether these patters differ for daughters and sons. The intense time investments the entire family unit incurs to support youth sport participation might be borne primarily by mothers; this in turn might …

How Do Denisonians Feel About Lacrosse On Campus, Paul A. Djupe

Faculty Publications

No abstract provided.

Search For Rare Decays B+→D (*)+SΗ, D (*)+ SK̅, D+ Η, And D+ K0, M. Kumar, V. Bhardwaj, K. Lalwani, I. Adachi

Faculty Publications

We present a study of rare decay modes B+→D⁺_Sh⁰, B+→D^*+_S h⁰, and B+→D+h⁰, where h⁰ denotes the neutral meson η or K⁰, using a data sample of (772±10)×10⁶   BB̅ events produced at the Υ(4S) resonance. The data were collected by the Belle detector operating at the asymmetric-energy KEKB collider. We find no evidence for these decays, so we set upper limits at the 90% confidence level on the branching fractions of B+→D⁺ _S h⁰, D^*+ _S h⁰, …

Turbulent Mixing Simulation Using The Hierarchical Parcel-Swapping (Hips) Model, Tommy Starick, Masoomeh Behrang, David O. Lignell, Heiko Schmidt, Alan R. Kerstein

Faculty Publications

Turbulent mixing is an omnipresent phenomenon that permanently affects our everyday life. Mixing processes also
plays an important role in many industrial applications. The full resolution of all relevant flow scales often poses a major challenge to the numerical simulation and requires a modeling of the small-scale effects. In transported Probability Density Function (PDF) methods, the simplified modeling of the molecular mixing is a known weak point. At this place, the Hierarchical Parcel-Swapping (HiPS) model developed by A.R. Kerstein [J. Stat. Phys. 153, 142-161 (2013)] represents a computationally efficient and novel turbulent mixing model. HiPS simulates the effects of turbulence …

Antibody Development To Identify Components Of Iis And Mtor Signaling Pathways In Lepidopteran Species, A Set Of Non-Model Insects, Alissa R. Armstrong, Carol Boggs

Faculty Publications

Nutritional stress impacts many insect species that have differing reproductive strategies and life histories, yet it is unclear how nutrient-sensing signaling pathways mediate tissue-specific responses to changes in dietary input. In Drosophila melanogaster , insulin/insulin-like growth factor (IIS) and mTOR-mediated signaling within adipocytes regulates oogenesis. To facilitate comparative study of nutrient-sensing pathway activity in the fat body, we developed antibodies to assess IIS (anti-FOXO) and mTOR signaling (anti-TOR) across three nymphalid species (Lepidoptera). By optimizing whole-mount fat body immunostaining, we find FOXO nuclear enrichment in adult adipocytes, like that observed in Drosophila . Additionally, we show a previously uncharacterized TOR …

How Noise Thresholds Affect The Information Content Of Stellar Flare Sequences, Elmer C. Rivera, Jay R. Johnson, Jonathan Homan, Simon Wing

Faculty Publications

Systems that exhibit discrete dynamics can be well described and reconstructed by considering the set of time intervals between the discrete events of the system. The Kepler satellite has cataloged light curves for many Sun-like stars, and these light curves show strong bursts in intensity that are associated with stellar flares. The waiting time between these flares describes the fundamental dynamics of the stars and is driven by physical processes, such as flux emergence. While it is rather straightforward to identify large flares, the identification of weaker flares can be challenging because of the presence of noise. A common practice …