Physical Sciences and Mathematics Commons^™

Electric Vehicle Uptake: What Factors Are Motivating The Shift For College-Aged And Older Groups?, Jake Cardines

Honors Projects in Mathematics

Electric vehicles (EVs) arguably are the most quickly expanding form of transportation as the world races toward a greener future with advanced technology and reduced reliance on fossil fuels. This study analyzes various expected inputs to motivating consumers of particular age groups to purchase EVs, including examination of how the idea of EV ownership is currently perceived and testing which factors influence it positively and negatively. Data collected from 113 survey respondents serves as the basis for determining the responsiveness of potential future EV owners to variables such as vehicle brand and charging availability, electric range, costs associated with purchase …

The Influence Of Diamine Curing Additives On The Network Architecture Of Phthalonitrile Thermosetting Polymers, Tyler J. Richardson

Dissertations

Phthalonitrile monomers undergo diamine-promoted polymerization by a complex reaction mechanism involving two competitive cure pathways, forming two primary network architectures: linear polyisoindoline chains and branched triazine crosslinks. The influence of the diamine curing additive on the polymerization pathway, and the influence of the resulting network architectures on cured network properties, have not been adequately explored within the phthalonitrile field. Two structurally different diamine curing additives, bis[4-(3-aminophenoxy)phenyl] sulfone (mBAPS) and 1,3-phenylenebis((4-(4-aminophenoxy)phenyl)methanone) (AEK-134), were studied for the polymerization of resorcinol phenylphosphate phthalonitrile (RPPhPN), where the influence of diamine structure and concentration on the polymerization behavior, network architecture, and bulk thermal and thermomechanical …

High Frequency Radio Communication, Tyler Larsen

Physics Capstone Projects

High frequency radio communication has been the most reliable form of communication for many decades. Over that period, we have learned and experienced times of enhanced signals along with complete radio blackouts. The purpose of this research is to collect and analyze radio signal data to see the evidence of various reasons as to why these phenomena occur. A radio antenna was set up at USU campus to retrieve the signals from beacon networks across the globe that transmit signals every 15 minutes. By tracking a few of these signals we can locate the times of discrepancies in the signals …

The Santa Clara, 2023-04-21, Santa Clara University

The Santa Clara

No abstract provided.

Visual Art In The Age Of Ai, Roshnica Gurung

Cybersecurity Undergraduate Research Showcase

Artists and researchers have been deeply interested in using AI programs that generate art for quite some time now. As a result, there have been many advancements in making AI more accessible and easier to use for the public. This is because AI is not just for business anymore. Nowadays an individual without a college degree with even the slightest interest in art can go on a website like Stable Diffusion and create an artistic image using a text prompt in a quick couple minutes. The only limit is your imagination- and your internet’s stability. This accessibility was a huge …

The Kp Index And Behavior Of Quiet Periods, Collette Walbeck

Physics Capstone Projects

The Kp-index quantifies the electromagnetic effects in the Earth’s atmosphere and is used in a variety of scientific fields. Higher Kp values tend to be the focus in these fields as they relate to high solar activity and geomagnetic storms. This study aimed to examine the significance, if any, of lower Kp indices. A simple data analysis was performed on continuous sequences of low Kp values, deemed Quiet Periods. Both the daily average of the values and the full set of Kp data were used. A decaying exponential relationship was discovered between the length of these periods and their frequencies …

The Luminous Power Of Accretion Disks In Active Galactic Nuclei, Imogen Jade Courtney

Honors Theses

Active Galactic Nuclei (AGN) are the most luminous long-lived objects in the universe. The phenomenon of the immense luminosities we observe for AGN has interested physicists and astronomers for over a century and continues to fascinate scientists today. The work in this thesis aims to provide an introductory exploration of this phenomenon. This thesis uses a simple model of AGN accretion disks that was developed under the standard disk model proposed by Shakura & Sunyev in 1973 under the simplest assumptions. The model accurately demonstrates how physical parameters, such as the temperature, radiative flux, luminosity, and spectra, scale through an …

Residential Metals Abatement Program Investigation Summary Report (Non- Residential Parcels – Indoor Dust) West Elementary School, Environmental Resource Management (Erm)

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) West Elementary School, Environmental Resource Management (Erm)

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

The Bellarmine Bee Bed: Organizing A Native Plant Garden Using Feedback From The Local Community, Kate Moran

Undergraduate Theses

Animal pollinators are the cornerstone of healthy ecosystems. Their survival is essential for the persistence of entire food chains: from the flowers they cross-pollinate directly, to the animals who depend on those plants for nutrition. The establishment of pollinator gardens—particularly ones that consist of native plants—is an effective way to enhance their biodiversity, abundance, and well-being.

The main goal of this thesis is to construct a pollinator garden that maximizes the benefits for animal pollinators using feedback from local gardeners. A survey was used to gather information about the popularity and preferences of 40 flowering plants, and after analyzing the …

Two Kinds Of Average Approximation Accuracy, Qingzhao Kong, Wanting Wang, Dongxiao Zhang, Wenbin Zhang

Michigan Tech Publications, Part 1

Rough set theory places great importance on approximation accuracy, which is used to gauge how well a rough set model describes a target concept. However, traditional approximation accuracy has limitations since it varies with changes in the target concept and cannot evaluate the overall descriptive ability of a rough set model. To overcome this, two types of average approximation accuracy that objectively assess a rough set model’s ability to approximate all information granules is proposed. The first is the relative average approximation accuracy, which is based on all sets in the universe and has several basic properties. The second is …

In-Vitro Validated Methods For Encoding Digital Data In Deoxyribonucleic Acid (Dna), Golam Md Mortuza, Jorge Guerrero, Shoshanna Llewellyn, Michael D. Tobiason, George D. Dickinson, William L. Hughes, Reza Zadegan, Tim Andersen

Computer Science Faculty Publications and Presentations

Deoxyribonucleic acid (DNA) is emerging as an alternative archival memory technology. Recent advancements in DNA synthesis and sequencing have both increased the capacity and decreased the cost of storing information in de novo synthesized DNA pools. In this survey, we review methods for translating digital data to and/or from DNA molecules. An emphasis is placed on methods which have been validated by storing and retrieving real-world data via in-vitro experiments.

Zero And Few-Shot Concept Learning With Pre-Trained Embeddings, Jamison M. Moody

Theses and Dissertations

Neural networks typically struggle with reasoning tasks on out of domain data, something that humans can more easily adapt to. Humans come with prior knowledge of concepts and can segment their environment into building blocks (such as objects) that allow them to reason effectively in unfamiliar situations. Using this intuition, we train a network that utilizes fixed embeddings from the CLIP (Contrastive Language--Image Pre-training) model to do a simple task that the original CLIP model struggles with. The network learns concepts (such as "collide" and "avoid") in a supervised source domain in such a way that the network can adapt …

Race, Gender And Rawls' "A Theory Of Justice.", Robert Carico

Honors Theses

Should we use the concepts developed by John Rawls in his A Theory of Justice to guide research questions relevant to issues concerning race and gender? This paper argues not only that the concepts from A Theory of Justice should not be used as the primary tool in any debate concerning race and gender, but it also challenges the abstract thinking of 21st Century Western Philosophers to develop a theory of justice that acknowledges the fact that people have their own interests and depending on what race and/or gender they identify with, might not have equal rights protected under the …

Characterization Of Shinella 6-Hydroxy-(L)-Nicotine Oxidase (6hlno-Se), Kaitrin Funckes

Honors Theses

6-hydroxy-(L)-nicotine oxidase, isolated from the organism Shinella sp. HZN7 (6HLNO-SE), is an enzyme that during the catabolism of nicotine catalyzes the oxidation of (S)-6-hydroxynicotine to 6-hydroxypseudeooxynicotine. This enzyme is a member of the monoamine oxidase (MAO) structural family of flavoproteins, which contain a highly conserved FAD-binding domain. Within the binding domain is a conserved lysine residue that can be traced throughout evolutionary history in this family. 6HLNO isolated from Arthrobacter nicotinovorans serves as a model enzyme for the one isolated from Shinella as both catalyze the same reaction in this biochemical pathway and much has been studied about the Arthrobacter …

Code Generation Based On Inference And Controlled Natural Language Input, Howard R. Dittmer

College of Computing and Digital Media Dissertations

Over time the level of abstraction embodied in programming languages has continued to grow. Paradoxically, most programming languages still require programmers to conform to the language's rigid constructs. These constructs have been implemented in the name of efficiency for the computer. However, the continual increase in computing power allows us to consider techniques not so limited. To this end, we have created CABERNET, a Controlled Natural Language (CNL) based approach to program creation. CABERNET allows programmers to use a simple outline-based syntax. This syntax enables increased programmer efficiency.

CNLs have previously been used to document requirements. We have taken this …

The Rotational Period Distribution Of Massive Magnetic White Dwarfs, Zorayda Martinez

Honors Theses

Rapidly rotating white dwarfs (WDs) have the potential to come about by either double degenerate mergers or weak coupling between the core and the outer envelope during the asymptotic giant branch (AGB). For both cases, knowledge of the rotational period distribution places tight constraints on the evolution of angular momentum transfer. Here we present initial results from a study of the rotational period distribution of 19 massive (M > 0:9M), magnetic, DA WDs observed by the Transiting Exoplanet Survey Satellite (TESS) and 17 observed with ground-based telescopes and analyzed with the Lightkurve python package. We present periodograms, folded light curves, and …

From Big Farm To Big Pharma: A Differential Equations Model Of Antibiotic-Resistant Salmonella In Industrial Poultry Populations, Rilyn Mckallip

Honors Theses

Antibiotics are used in poultry production as prophylaxis, curative treatment, and growth promotion. The first use is as prophylaxis, or prevention of common bacterial diseases. The crowded conditions in concentrated animal feeding operations necessitate management of infectious disease to ensure overall animal health and the profitability of such operations. In these farms, between 20,000 and 125,000 birds are raised in shed-like enclosures [3], with an average of less than one square foot of space per chicken [34]. Antibiotics are currently used in chicken farms to manage and prevent common bacterial diseases such as respiratory and digestive tract infections, as well …

A Study Of The Collection And Sharing Of Student Data With Virginia Universities, Titus Voell

Cybersecurity Undergraduate Research Showcase

Data collection is a vital component in any organization in regards to keeping track of user activity, gaining statistics and improving the user experience, and user identification. While the underlying basis of data collection is understandable, the use of this data has to be closely regulated and documented. In many cases, the VCDPA (Virginia Consumer Data Protection Act) outlines the guidelines for data use, data controller responsibilities, and limitations however nonprofit organizations are exempt from compliance. Colleges and universities, although still held to some degree of limitation, range in permissiveness with what data they choose to collect and retain but …

Heavy Metal Content In Eggs From Wild And Managed-Care Humboldt Penguins, Mya Daniels-Abdulahad

All HCAS Student Capstones, Theses, and Dissertations

The Humboldt penguin, Spheniscus humboldti, has been recognized as a Vulnerable species (IUCN) for nearly two decades, with annual population declines of more than 10% largely attributed to pervasive anthropogenic activity occurring throughout the species’ range of Peru and Chile. Due to recent mining expansions near the species’ largest Peruvian rookery, located at the Punta San Juan (PSJ) reserve, the exposure of breeding individuals to elevated concentrations of trace elements (e.g., heavy metals) in the marine environment is a preeminent concern. While heavy metal toxicity is dependent on metal species, dose, route of exposure, and the physiologic parameters of …

Climate-Controlled Submarine Landslides On The Antarctic Continental Margin, Jenny A. Gales, Robert M. Mckay, Laura De Santis, Michele Rebesco, Jan Sverre Laberg, Amelia E. Shevenell, David M. Harwood, R. Mark Leckie, Denise K. Kulhanek, Maxine King, Molly Patterson, Renata G. Lucchi, Sookwan Kim, Sunghan Kim, Justin Dodd, Julia Seidenstein, Catherine Prunella, Giulia M. Ferrante, Iodp Expedition

Department of Earth and Atmospheric Sciences: Faculty Publications

Antarctica’s continental margins pose an unknown submarine landslidegenerated tsunami risk to Southern Hemisphere populations and infrastructure. Understanding the factors driving slope failure is essential to assessing future geohazards. Here, we present a multidisciplinary study of a major submarine landslide complex along the eastern Ross Sea continental slope (Antarctica) that identifies preconditioning factors and failure mechanisms. Weak layers, identified beneath three submarine landslides, consist of distinct packages of interbedded Miocene- to Pliocene-age diatom oozes and glaciomarine diamicts. The observed lithological differences, which arise from glacial to interglacial variations in biological productivity, ice proximity, and ocean circulation, caused changes in sediment deposition …

Is There Causation In Fundamental Physics? New Insights From Process Matrices And Quantum Causal Modelling, Emily Adlam

Mathematics, Physics, and Computer Science Faculty Articles and Research

In this article we set out to understand the significance of the process matrix formalism and the quantum causal modelling programme for ongoing disputes about the role of causation in fundamental physics. We argue that the process matrix programme has correctly identified a notion of ‘causal order’ which plays an important role in fundamental physics, but this notion is weaker than the common-sense conception of causation because it does not involve asymmetry. We argue that causal order plays an important role in grounding more familiar causal phenomena. Then we apply these conclusions to the causal modelling programme within quantum foundations, …

Progress And Reflection Of Intelligent Geological Guarantee Technology In Coal Mining Face, Wang Guofa, Zhang Jianzhong, Xue Guohua, Liu Zaibin, Liu Qing, Li Mei, Liu Junfeng, Cheng Jian, Zhang Xueliang

Coal Geology & Exploration

Coal mine geological guarantee technology is the key path to achieve accurate and green coal mining. In view of the requirements of intelligent mining and geological guarantee, the main problems faced by the geological guarantee of the mining face were analyzed, mainly including the weak basic theoretical research, insufficient geological exploration accuracy, modeling accuracy unable to meet the engineering application, difficulties in model dynamic updating, and lack of optimal decision-making means for global path of intelligent mining based on spatio-temporal evolution. According to the faced difficulties and technical status, the author explored and practiced the geological guarantee technology of intelligent …

Electromagnetic Methods In The Detection Of Water Hazards In Coal Mines: A Review, Zhang Jifeng, Sun Naiquan, Liu Zuiliang, Qi Zhipeng

Coal Geology & Exploration

Water hazards in coal mines are a major type of hidden danger in safe coal mining. The accurate detection of hidden factors to cause hazard is the prerequisite to solving the water hazards. Electromagnetic methods, which are sensitive to low-resistivity bodies and have multiple types and high adaptability, can be used to effectively detect water-rich hazard-causing factors. Traditional ground electromagnetic methods, including the controlled source audio-frequency magnetotellurics (CSAMT) method and the loop source transient electromagnetic method, play an important role in detecting hidden hazard-causing factors in coal mines. With the continuous development of new technologies, near-source electromagnetic methods have developed …

A Review On Research Of Reflected In-Seam Wave Detection Technology In Coal Mine, Wang Ji, Ye Hongxing, Zhang Guangzhong, Li Gang, Wu Guoqing, Niu Huan, Yang Yanjun, Guan Qi

Coal Geology & Exploration

Reflected in-seam wave can be used in one roadway to detect the abnormal geological structures such as faults in some area on both sides of the roadway or in front of tunneling. In this paper, the data and processing method of the reflected in-seam wave were compared based on the 2 different detection areas on side of the roadway and in front of tunneling. In particular, the technical principles, applicable conditions and research progress of three imaging methods of reflected in-seam wave were analyzed and sorted out, including the stack imaging, migration imaging and advance imaging of tunneling face. Besides, …

Detection Of Change In The Coal Thickness Of A Fully Mechanized Mining Face Based On Electromagnetic Wave Penetration, Wu Rongxin, Li Xiang, Xiao Yulin

Coal Geology & Exploration

A fully mechanized mining face tend to show great change in coal thickness, which affects the safe, efficient coal mining. Therefore, it is necessary to detect the change in the coal thickness before stoping. To determine the response of electromagnetic (EM) wave penetration to the change in the coal thickness, this study established a three-dimensional model of fully mechanized mining faces using simulation software. On this basis, this study simulated the change in the coal thickness under different ratios of the coal-to-rock resistivity based on EM wave penetration. The results are as follows: (1) With a decrease in the coal …

Development Status And Trend Of High-Density 3d Seismic Exploration Technology For Coal Fields, Dong Shouhua, Huang Yaping, Jin Xueliang, Yang Guangming, Nie Ailan, Qi Xuemei, Cheng Yan, Wu Haibo

Coal Geology & Exploration

Traditional 3D seismic exploration in coal mining areas is difficult to meet the requirements of transparent and accurate geological exploration for safe and efficient coal mining due to its low precision for complex structures, lower coal seams, and limestones. In this case, high-density 3D seismic exploration technology for coal fields emerged. This technology has undergone three developmental stages in China, namely the exploration and test stage during 2005‒2007, the test and demonstration stage during 2008‒2014, and the promotion and application stage since 2015. After nearly 20 years of development, its accuracy for the exploration of complex geological structures has been …

Source And Release Law Of Fluorine In Water-Rock System Of Coal Mine Goaf In Contiguous Area Of Shaanxi And Inner Mongolia, Wang Tiantian, Jin Dewu, Xue Jiankun, Ji Hongying, Shang Hongbo, Zhou Zhenfang, Yang Jian, Cao Yu

Coal Geology & Exploration

The coal mine goaf is the key area for the formation of high-fluoride mine water, and the source and release of fluorine in goaf water-rock system determines the enrichment or depletion of fluorine in mine water. Aiming at the unclear source and release rule of fluorine in the mine water of 3-1 coal goaf in the contiguous area of Shaaxi and Inner Mongolia, hydrochemical test, mineral composition analysis, mineral scanning electron microscopy and energy spectrum detection, as well as laboratory water-rock simulation experiment, were conducted to determine the source and occurrence carrier of fluorine in coal mine water, and to …

A Preliminary Study On The Multiscale Effect Of Seismic Anisotropy Of Coal Seams At Long Wavelengths, Wang Yun, Zheng Yongqin, Yang Chun, Zhang Yi, Li Yingda, Zhang Huimin

Coal Geology & Exploration

Terrestrial coal-bearing strata in China are all typical thin interbeds given the seismic frequency bands of coal exploration. The isotropic thin interbeds are superimposed in the coal-bearing strata, exhibiting seismic anisotropy at long wavelengths among different seismic wavelengths, for which simplified equivalent processing, such as vertical transverse isotropy (VTI) or isotropy (ISO) approximation, is generally adopted in seismic exploration. However, the long-wave approximation has different applicable conditions for strata with different elastic properties. Taking the coal-bearing strata in the Huainan Coalfield as an example, this study established two-dimensional models of horizontal thin interbeds using acoustic and density logging curves of …

Preparation And Characteristics Of Inorganic Curing Foam With Large-Volume Fly Ash In Goaf, Ma Li, Du Su, Zhang Zhaoyun, Wang Hui, Zhao Liang, Zhang Bo

Coal Geology & Exploration

Air leakage in the goaf of coal mine is an important cause of coal fire disaster. The traditional filling and plugging materials are easy to crack, with poor fluidity and high cost. Therefore, it is necessary to develop new materials for effective filling and plugging of the air leakage channels. Herein, the new filling and plugging material of inorganic curing foam with large-volume fly ash was developed by optimizing the mix ratio based on material fluidity, initial setting time and compressive strength using the single factor variable method. Meanwhile, the material hydration process was characterized by the infrared spectroscopy, X-ray …