Digital Commons Network^™

Fluctuating Hydrodynamics And The Rayleigh–Plateau Instability, Bryn Barker, John B. Bell, Alejandro L. Garcia

Faculty Research, Scholarly, and Creative Activity

The Rayleigh–Plateau instability occurs when surface tension makes a fluid column become unstable to small perturbations. At nanometer scales, thermal fluctuations are comparable to interfacial energy densities. Consequently, at these scales, thermal fluctuations play a significant role in the dynamics of the instability. These microscopic effects have previously been investigated numerically using particle-based simulations, such as molecular dynamics (MD), and stochastic partial differential equation–based hydrodynamic models, such as stochastic lubrication theory. In this paper, we present an incompressible fluctuating hydrodynamics model with a diffuse-interface formulation for binary fluid mixtures designed for the study of stochastic interfacial phenomena. An efficient numerical …

Artistic Approaches: A Study Of Creative Writers Who Teach First-Year Writing, Tyler Gillespie

Electronic Theses and Dissertations Archive

Currently, Writing Studies and Creative Writing occupy different disciplinary positions, but this relationship doesn’t need to be adversarial. This project illustrates “line-crossing” pedagogies of creative writers who teach first-year writing (FYW) to further discussions of how they can situate themselves into Writing Studies. To help bridge disciplinary gaps, I narrate the practices of participants and put them in conversation with existing Writing Studies scholarship and the field’s expertise. For several years, I interviewed 26 creative writers who teach FYW at 15 different institutions, which included R1s, Community Colleges, Historically Black Colleges & Universities (HBCUs), Private Art Schools, Small Liberal Arts …

Butte Priority Soils Operable Unit (Bpsou) Draft Final Insufficiently Reclaimed Sites – Field Sampling Plan (Fsp) Bres No. 31 – Waste Dump #5, Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Butte Priority Soils Operable Unit (Bpsou) Draft Final Insufficiently Reclaimed Sites – Field Sampling Plan (Fsp) Bres No. 134 – Star West Dump, Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Draft Final 2023 Residential Metals Abatement Program (Rmap) School Soil Sampling Field Sampling Plan (Fsp) Submittal #11 [Montana Technological University (North Campus)], Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

The Impact Of Climate Change On Selected Pnw Watersheds Through The Lens Of Western Red Cedar Habitat, Jordan T. Hamann

Dissertations and Theses

Climate change is a real phenomenon that is exacerbating existing natural processes and developing into a new normal for the planet. This change may be devastating for Pacific Northwest populations of Western Red Cedar (WRC) west of the Cascade Mountain range in the states of Oregon and Washington. WRC is a valuable tree species for reasons both economic and cultural. Dieback among WRC is following an accelerating trend. Since dieback is usually followed by tree mortality, understanding its causes and distribution is beneficial to the overall success of the species going into the future.

Through the use of ESRI's ArcGIS …

Confronting Web3 Technology: Opportunities, Challenges And Community Formation, Christopher-John Rogers

Dissertations and Theses

The emergence of blockchain technology created an entire industry of innovative new digital assets--or tokens--and diverse new fields of expertise founded on ideological aspirations of a new World Wide Web that reimagines digital value transfer through decentralization and disintermediation. Experimentation in the so-called "Web3" industry produces rich new fields of ethnographic study revealing the experiences of diverse individuals navigating novel technological capabilities which give way to new avenues of identity formation, community building, and ecosystem creation. These exciting new endeavors come with difficult challenges threatening the realization of ambitious visions for digital futures. Ethnographic research conducted through discourse analysis, participant …

Collaborative Action In Informal Social Networks Of Wildfire Managers In Northwestern Wyoming, Hannah Lynn Spencer

Dissertations and Theses

Wildfire is a cross-boundary, collective action issue. Previous research has demonstrated the importance of collaborative relationships in wildfire for purposes such as increasing capacity, trading information, and facilitating landscape-scale mitigation projects. However, a stakeholder's location in social networks, as well as personal factors, may impact their collaboration. Furthermore, stakeholders must prioritize their own organizational goals and responsibilities, which may differ from those of their collaborators. I used interview and survey methods to investigate these questions in the context of wildfire management professionals in northwestern Wyoming. For the interviews, I selected 12 individuals with high betweenness centrality who were involved in …

Standardized Medical Terminology For Cardiac Computed Tomography 2023 Update: An Expert Consensus Document Of The Society Of Cardiovascular Computed Tomography (Scct), American Association Of Physicists In Medicine (Aapm), American College Of Radiology (Acr), North American Society For Cardiovascular Imaging (Nasci), And Radiological Society Of North America (Rsna) With Endorsement By The Asian Society Of Cardiovascular Imaging (Asci), The European Association Of Cardiovascular Imaging (Eaci), And The European Society Of Cardiovascular Radiology (Escr), Ricardo Cury

All Publications

Since the emergence of cardiac computed tomography (Cardiac CT) at the turn of the 21st century, there has been an exponential growth in research and clinical development of the technique, with contributions from investigators and clinicians from varied backgrounds: physics and engineering, informatics, cardiology, and radiology. However, terminology for the field is not unified. As a consequence, there are multiple abbreviations for some terms, multiple terms for some concepts, and some concepts that lack clear definitions and/or usage. In an effort to aid the work of all those who seek to contribute to the literature, clinical practice, and investigation of …

Test-Retest Reliability Of A 4-Minute All-Out Critical Force Test In Rock Climbers, Zachary J. Mcclean, Keenan Macdougall, Jared R. Fletcher, Saied J. Aboodarda, Brian R. Macintosh

International Journal of Exercise Science

International Journal of Exercise Science 16(4): 912-923, 2023. The purpose of this study was to assess the test-retest reliability of a 4-minute all-out critical force test in well-trained rock climbers. Thirteen rock climbers (n=4 females) completed a familiarization session and two all-out critical force tests on different days. During each trial, participants completed 24 repetitions of 7s right-handed, maximal effort hangs from a 20mm edge interspersed with 3 s rest. The end-test force (EF; i.e., critical force), impulse above EF (IEF), and peak force achieved durin g the test were analyzed with paired t-tests to determine differences between trials. Intraclass …

Bring On The Heat, Renée Stoute

The Journal of International Relations, Peace Studies, and Development

According to the World Economic Forum, in retaliation to European Union sanctions and embargoes, Russia cut EU gas flows by around 80% between May and October 2022 (WEF, 2022). The EU, in turn, has had to not only reduce energy consumption within the public and private sectors but has also scrambled to find energy alternatives to compensate for its energy shortcomings. However, due to the EU’s rejection of Russian oil and gas, there are now opportunities to embrace more sustainable energy alternatives quicker than previously expected. This could lead to a faster transition towards the use of cleaner and more …

Universal Design For Learning (Udl) In Inclusive Preschool Science Classrooms, Marla J. Lohmann, Katrina A. Hovey, Ariane N. Gauvreau

Journal of Science Education for Students with Disabilities

Science instruction is a critical aspect of early learning. Teachers can support young children’s learning about scientific concepts through the use of the Universal Design for Learning (UDL) framework, which is a proactive approach to instructional planning that helps ensure success for all learners. This teaching techniques article offers preschool teachers practical solutions for implementing in the UDL framework for science instruction in their classrooms.

Reducing Access Barriers: Exploring Student Smartphone Use Across Higher Education Institutions, Alex Rockey, Jenae Cohn, Samantha Eastman

Journal of Educational Research and Practice

With near ubiquitous smartphone ownership among 18–29-year-olds, many students carry mobile technology everywhere they go, yet little is known about how students use mobile devices for learning. For historically marginalized students, in particular, their phone may be an important tool for learning—especially if it is the primary device used to access the internet. This study explores student perceptions of using mobile devices for learning in focus groups with students from a California community college, a California state university, and a California university. Findings suggest that students often rely on their mobile devices as both an emergency bridge and to make …

Prompt-Based Tuning Of Transformer Models For Multi-Center Medical Image Segmentation Of Head And Neck Cancer, Numan Saeed, Muhammad Ridzuan, Roba Al Majzoub, Mohammad Yaqub

Computer Vision Faculty Publications

Medical image segmentation is a vital healthcare endeavor requiring precise and efficient models for appropriate diagnosis and treatment. Vision transformer (ViT)-based segmentation models have shown great performance in accomplishing this task. However, to build a powerful backbone, the self-attention block of ViT requires large-scale pre-training data. The present method of modifying pre-trained models entails updating all or some of the backbone parameters. This paper proposes a novel fine-tuning strategy for adapting a pretrained transformer-based segmentation model on data from a new medical center. This method introduces a small number of learnable parameters, termed prompts, into the input space (less than …

Understanding Political Polarization Using Language Models: A Dataset And Method, Samiran Gode, Supreeth Bare, Bhiksha Raj, Hyungon Yoo

Natural Language Processing Faculty Publications

Our paper aims to analyze political polarization in US political system using language models, and thereby help candidates make an informed decision. The availability of this information will help voters understand their candidates' views on the economy, healthcare, education, and other social issues. Our main contributions are a dataset extracted from Wikipedia that spans the past 120 years and a language model-based method that helps analyze how polarized a candidate is. Our data are divided into two parts, background information and political information about a candidate, since our hypothesis is that the political views of a candidate should be based …

Variable Synchrony In Insect Outbreak Cycling Across A Forest Landscape Gradient: Multi-Scale Evidence From Trembling Aspen In Alberta, Barry J. Cooke, Jens Roland

Aspen Bibliography

Using multi-scale trembling aspen tree-ring width data from Alberta, we show that scaling has a profound influence on dendroecological inferencing. At all scales of sampling, there is a significant climatological signal whose strength is nevertheless superseded by the pervasive effect of insect herbivory. At the smallest spatial scale, 20 km x 20 km, we demonstrate a quasi-periodic pattern of sharp growth reductions and the existence of negative spatial correlations among successive outbreaks. At the intermediate spatial scale of 20 km x 80 km, we show that the period 1930-1963 was marked by extremely low correlations in aspen ring widths, with …

Signal Classification Based On Analog Computing Using Mems Network, Mohammad Okour

Durham School of Architectural Engineering and Construction: Dissertations, Theses, and Student Research

The rising complexity of machine learning algorithms and Artificial Intelligence in many applications, such as smart building, has prompted the development of alternate computing options. Because of their compact size, low power consumption, and diverse functionality, microelectromechanical systems (MEMS) have emerged as a possible candidate. This thesis focuses on using MEMS networks as computing units to classify a simple signal classification task using neural network methodology. The study intends to show the potential of using MEMS as an analog computing unit by discussing the advantage of the bi-stability pull-in behavior and hysteresis to create an accurate classifier of these waveforms. …

Are Shrubs A Necessary Component Of The Habitat For Ammospermophilus Nelsoni In The San Joaquin Desert?, David J. Germano, Larry R. Saslaw

Western North American Naturalist

The San Joaquin antelope squirrel (Ammospermophilus nelsoni; SJAS) is a state-listed Threatened species in California that evolved in the shrublands of the San Joaquin Desert. Due to livestock overgrazing and fires, much of the desert has lost its shrub cover, which would be a conservation concern if shrubs are a necessary component of the habitat for squirrels. We established two 64-trap plots on the Lokern area of Kern County, California: one covered by saltbush scrub (Atriplex spp.) and another nearby without shrubs. We trapped quarterly starting in January 2019 and ending in November 2021 (12 trap sessions). …

Multi-Scale Attention Networks For Pavement Defect Detection, Junde Chen, Yuxin Wen, Yaser Ahangari Nanehkaran, Defu Zhang, Adan Zeb

Engineering Faculty Articles and Research

Pavement defects such as cracks, net cracks, and pit slots can cause potential traffic safety problems. The timely detection and identification play a key role in reducing the harm of various pavement defects. Particularly, the recent development in deep learning-based CNNs has shown competitive performance in image detection and classification. To detect pavement defects automatically and improve effects, a multi-scale mobile attention-based network, which we termed MANet, is proposed to perform the detection of pavement defects. The architecture of the encoder-decoder is used in MANet, where the encoder adopts the MobileNet as the backbone network to extract pavement defect features. …

Deep Dives And High Tissue Density Increase Mean Dive Costs In California Sea Lions (Zalophus Californianus), Mason R. Cole, Colin Ware, Elizabeth A. Mchuron, Daniel P. Costa, Paul J. Ponganis, Birgitte I. Mcdonald

Center for Coastal and Ocean Mapping

Diving is central to the foraging strategies of many marine mammals and seabirds. Still, the effect of dive depth on foraging cost remains elusive because energy expenditure is difficult to measure at fine temporal scales in wild animals. We used depth and acceleration data from eight lactating California sea lions (Zalophus californianus) to model body density and investigate the effect of dive depth and tissue density on rates of energy expenditure. We calculated body density in 5 s intervals from the rate of gliding descent. We modeled body density across depth in each dive, revealing high tissue densities and diving …

Ovid: Writing From Butler University's First Year Seminar 2023-2024, The Ovid Staff

Ovid

No abstract provided.

What Was I Made For?, Maythazin Minthu

Ovid

No abstract provided.

A Review On Membrane Fouling Prediction Using Artificial Neural Networks (Anns), Waad H. Abuwatfa, Nour Al Sawaftah, Naif Darwish, William G. Pitt, Ghaleb A. Husseini

Faculty Publications

Membrane fouling is a major hurdle to effective pressure-driven membrane processes, such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO). Fouling refers to the accumulation of particles, organic and inorganic matter, and microbial cells on the membrane’s external and internal surface, which reduces the permeate flux and increases the needed transmembrane pressure. Various factors affect membrane fouling, including feed water quality, membrane characteristics, operating conditions, and cleaning protocols. Several models have been developed to predict membrane fouling in pressure-driven processes. These models can be divided into traditional empirical, mechanistic, and artificial intelligence (AI)-based models. Artificial neural networks …

Comments On The Draft Butte Priority Soils Operable Unit (Bpsou) Buffalo Gulch 60 Percent Design (Dated December 9, 2022), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Comments On The Draft Butte Priority Soils Operable Unit (Bpsou) Buffalo Gulch 60 Percent Design (Dated December 9, 2022), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Final Butte Priority Soils Operable Unit (Bpsou) Insufficiently Reclaimed (Ir) Sites Colorado Dump – West Lot Construction Completion Report (Ccr), Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Re: Comments On The Draft Butte Priority Soils Operable Unit (Bpsou) Buffalo Gulch 60 Percent Design (Dated December 9, 2022), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Spatial Variations In Ancient Meteoric Water: An Investigation Of The Rattlesnake Tuff, Julian Michael Cohen

Dissertations and Theses

Volcanic glass has been used extensively as a paleoclimate proxy. Deuterium (²H) concentrations in glass have been found to be stable over geologic timescales, making δD a reliable proxy for ancient water chemistry. However, continued work revolves around better understanding how different factors affect preserved water in ash. Here, I analyze δD in the Rattlesnake Tuff (RST), a widespread ca. 7 Ma ashflow tuff, and create an isoscape to assess variations in δD across Oregon during that time. Additionally, I examine compositional data from glass shards to explore the relationship between δD and shard composition. The RST exhibits …

Disentangling Groundwater Dynamics At Oregon's Mckenzie River Headwaters, Taylor Nicole Salazar

Dissertations and Theses

Widespread mountain snowpack declines have been occurring across the western United States over the last century, and are increasing in duration and severity, with several record-breaking low-snowpack years in the last decade. In the Pacific Northwest, summer streamflow is largely a result of melting snow and groundwater discharge, as summers are typically dry and warm in this Mediterranean bioclimate, thus making spring-fed rivers critical for regional water resources. However, current trends and predictions in hydroclimate modeling indicate spring-fed rivers will experience reduced summer discharge driven by the increasingly larger impact of anthropogenic climate change (warming) on (decreased) mountain snowpack. A …

Wave Optics Approach To Solar Cell Brdf Modeling With Experimental Results, Madilynn Compean, Todd V. Small, Milo W. Hyde Iv, Michael Marciniak

Faculty Publications

Light curve analysis is often used to discern information about satellites in geosynchronous orbits. Solar panels, comprising a large part of the satellite’s body, contribute significantly to these light curves. Historically, theoretical bidirectional reflectance distribution functions (BRDFs) have failed to capture key features in the scattered light from solar panels. In recently published work, a new solar cell BRDF was developed by combining specular microfacet and “two-slit” diffraction terms to capture specular and periodic/array scattering, respectively. This BRDF was experimentally motivated and predicted many features of the solar cell scattered irradiance. However, the experiments that informed the BRDF were limited …