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Characterizing The Informativity Of Level Ii Book Data For High Frequency Trading, Logan B. Nielsen Apr 2023

Characterizing The Informativity Of Level Ii Book Data For High Frequency Trading, Logan B. Nielsen

Theses and Dissertations

High Frequency Trading (HFT) algorithms are automated feedback systems interacting with markets to maximize returns on investments. These systems have the potential to read different resolutions of market information at any given time, where Level I information is the minimal information about an equity--essentially its price--and Level II information is the full order book at that time for that equity. This paper presents a study of using Recurrent Neural Network (RNN) models to predict the spread of the DOW Industrial 30 index traded on NASDAQ, using Level I and Level II data as inputs. The results show that Level II …

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Utilizing Isothermal Titration Calorimetry To Measure Β-Galactosidase Activity In Dairy Products, Tyler Ronald Jarrard Apr 2023

Utilizing Isothermal Titration Calorimetry To Measure Β-Galactosidase Activity In Dairy Products, Tyler Ronald Jarrard

Theses and Dissertations

The dairy industry uses enzymes to make cheese, alter product flavor, and eliminate lactose. The activities of these enzymes have been measured in clear buffered solutions, but because of the limitations of spectrophotometric methods, enzyme activities have not been measured in opaque or colored dairy products where they are used. Isothermal titration calorimetry (ITC) can be used to determine reaction kinetics in opaque and colored solutions by measuring the heat rate from enzyme-catalyzed reactions as a function of time. This study used ITC to measure β-galactosidase activity in opaque solutions of milk, sweet whey, sweet whey permeate, acid whey, and …

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Network Representation Theory In Materials Science And Global Value Chain Analysis, Mats C. Haneberg Apr 2023

Network Representation Theory In Materials Science And Global Value Chain Analysis, Mats C. Haneberg

Theses and Dissertations

This thesis is divided into two distinct chapters. In the first chapter, we apply network representation learning to the field of materials science in order to predict aluminum grain boundaries' properties and locate the most influential atoms and subgraphs within each grain boundary. We create fixed-length representations of the aluminum grain boundaries that successfully capture grain boundary structure and allow us to accurately predict grain boundary energy. We do this through two distinct methods. The first method we use is a graph convolutional neural network, a semi-supervised deep learning algorithm, and the second method is graph2vec, an unsupervised representation learning …

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Psychology Of Design Open Education Textbook: An Application-Driven Design, William Sowards Apr 2023

Psychology Of Design Open Education Textbook: An Application-Driven Design, William Sowards

Instructional Psychology and Technology Graduate Student Projects

Understanding the relationship between psychology and design is key for all of the different disciplines of design. The Design Psychology: Applying Theory to Design Practice textbook aims to address the gap in OER content by discussing more explicitly the relationship between psychology and design. A well-designed textbook can ensure that learners are enabled to learn both on their own and in a group setting. The chapter template for the Design Psychology: Applying Theory to Design Practice textbook is designed to ensure that every chapter in the textbook has consistent flow, pedagogy, and design. This consistency in design will provide learners …

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Real-Time Imaging And Measurement Of Compartmentalized Redox Shifts Using Novel Redox-Sensitive Biosensors: Implications In Developmental Toxicology, Brandon Mitchell Davies Apr 2023

Real-Time Imaging And Measurement Of Compartmentalized Redox Shifts Using Novel Redox-Sensitive Biosensors: Implications In Developmental Toxicology, Brandon Mitchell Davies

Theses and Dissertations

Glutathione (GSH) is a small antioxidant in the body and exists in large quantities compared to other antioxidants. The GSH redox state (Eh) helps developmental processes, however, when the GSH Eh is disrupted, cells may undergo significantly poor developmental pathways, possibly leading to long-lasting damages. Similarly, NADPH and Thioredoxin redox states can have a major impact on cellular function, viability, and response to both endogenous and exogenous toxicants. Subcellular, compartmentalized redox environments during normal or perturbed situations, specifically in the cytosol, mitochondria, and nucleus, are not well understood. Here, using the P19 neurogenesis model of cellular differentiation, the kinetics of …

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Large-Scale Testing Of Lightweight Cellular Concrete Backfill For Sliver-Fill Mse Wall Configurations, Meghann Dee Morgan Apr 2023

Large-Scale Testing Of Lightweight Cellular Concrete Backfill For Sliver-Fill Mse Wall Configurations, Meghann Dee Morgan

Theses and Dissertations

Lightweight cellular concrete (LCC) is an aerated or foamed concrete where 25-80% of the concrete matrix consists of air voids. The high volume of air voids reduces the strength but significantly decreases the weight of the material, which has made it an attractive alternative to soil for retaining structure backfills. Though the use of LCC has increased, little research has been performed on the large-scale behavior of retaining structures containing LCC as backfill. This research test attempts to fill knowledge gaps found with regard to the use of LCC in a mechanically stabilized earth (MSE) wall with a trapezoidal or …

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The Fourth Amendment In A Digital Age: Defining Boundaries In Law Enforcement Surveillance Of The Home, Josh Hoffman, Jared Xia Apr 2023

The Fourth Amendment In A Digital Age: Defining Boundaries In Law Enforcement Surveillance Of The Home, Josh Hoffman, Jared Xia

Brigham Young University Prelaw Review

As our country enters a new digital age, emerging technologies have increased the ability of law enforcement to monitor American citizens more closely. The tracking of suspects through thermal imaging, video monitoring, and cell phone GPSs are just a few examples of the unlocked potential now available to investigating authorities. When directed at the home, these technologies allow for unprecedented encroachment of our most intimate sphere of daily life. With this accelerating prevalence of technology in surveillance practices comes the need to reassess what boundaries the Fourth Amendment defines for our privacy. This paper explores the application of the Reasonable …

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Covid-19 Lockdown: Impact On College Students’ Lives, Wendy C. Birmingham, Lori L. Wadsworth, Jane H. Lassetter Apr 2023

Covid-19 Lockdown: Impact On College Students’ Lives, Wendy C. Birmingham, Lori L. Wadsworth, Jane H. Lassetter

Faculty Publications

Objective: In light of COVID-19, leaders issued stay-at-home orders, including closure of higher-education schools. Most students left campus, likely impacting their employment and social network. Leaders are making decisions about opening universities and modality of instruction. Understanding students' psychological, physiological, academic, and financial responses to the shut-down and reopening of campuses can help leaders make informed decisions. Participants: 654 students from a large western university enrolled during the pandemic shutdown. Methods: Students were invited via email to complete an online survey. Results: Students reported stress, depression, loneliness, lack of motivation, difficulty focusing on schoolwork, restless sleep, appetite changes, job loss …

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The Gig-Economy War: The Drive Towards Regulating Rideshare Employment Misclassification, Inae Cavalcante Apr 2023

The Gig-Economy War: The Drive Towards Regulating Rideshare Employment Misclassification, Inae Cavalcante

Brigham Young University Prelaw Review

With the emergence of the gig-economy, the doctrine distinguishing independent contractors from employees has never been more relevant in the state of California. Currently, the state faces a legal battle regarding employment misclassification of rideshare apps’ drivers, specifically Uber Technologies. While many believe that drivers should be entitled to the label of employee and receive benefits and protections under the California Labor Code, the law is not tailored to this new market and renders itself ambiguous. Although many solutions were presented in the past, such as the Borello Test, the ABC Test, Assembly Bill 5, and Proposition 22, no employment …

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Data For Caveat Emptor-Scan Quality Of Elsevier’S Digital Backfile Pdf Collection, Gregory M. Nelson, Paul Kj Robbins Apr 2023

Data For Caveat Emptor-Scan Quality Of Elsevier’S Digital Backfile Pdf Collection, Gregory M. Nelson, Paul Kj Robbins

ScholarsArchive Data

The data set contains two Supplementary Files that contain (1) metadata for 31 of Elsevier's journal backfile packages and (2) metadata and results of a PDF scan quality study.

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Large Eddy Simulation For Empirical Modeling Of The Wake Of Three Urban Air Mobility Vehicles, Denis-Gabriel Caprace, Andrew Ning Apr 2023

Large Eddy Simulation For Empirical Modeling Of The Wake Of Three Urban Air Mobility Vehicles, Denis-Gabriel Caprace, Andrew Ning

Faculty Publications

Recent advances in urban air mobility have driven the development of many new VTOL concepts. These vehicles often feature original designs departing from the conventional helicopter configuration. Due to their novelty, the characteristics of the super-vortices forming in the wake of such aircraft are unknown. However, these vortices may endanger any other vehicle evolving in their close proximity, owing to potentially large induced velocities. Therefore, improved knowledge about the wakes of VTOL vehicles is needed to guarantee safe urban air mobility operations. In this work, we study the wake of three VTOL aircraft in cruise by means of large eddy …

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Thermal Inactivation Of Salmonella, Escherichia Coli, And Enterococcus Faecium Nrrl B-2354 In Pasta Matrices, Kristi Shannon Gowans Mar 2023

Thermal Inactivation Of Salmonella, Escherichia Coli, And Enterococcus Faecium Nrrl B-2354 In Pasta Matrices, Kristi Shannon Gowans

Theses and Dissertations

Limited data are currently available characterizing the thermal resistance of foodborne pathogens in semolina flour and intermediate pasta matrices representative of commercial conditions during mixing, extrusion, and drying. These data are essential to pasta producers seeking to be compliant with federal regulations since Salmonella spp. and Escherichia coli demonstrate survival in wheat flour and dried pasta products. This study investigated the heat resistance of Salmonella, pathogenic E. coli, and E. faecium NRRL B-2354 in raw semolina flour and partially dried pasta intermediates via thermal death time (TDT) studies. This study also assessed the appropriateness of E. faecium NRRL B-2354 as …

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Developing Tools For Introducing Modifications Into The Chicken Genome, Zachary Eldon Olsen Mar 2023

Developing Tools For Introducing Modifications Into The Chicken Genome, Zachary Eldon Olsen

Theses and Dissertations

The chicken is a classic model organism that has provided key insights into embryonic development. Chicken embryos can be directly manipulated and observed during development while retaining the potential to reach adulthood. Despite this benefit, the utility of the chicken in studying development has been limited by the difficulty of introducing genetic changes to the genome. The recent development of cell culture conditions for chicken primordial germ cells (cPGC) has made it feasible to produce transgenic chickens, but there is still a lack of tools for introducing genetic modifications into cPGCs. Recombinase Mediated Cassette Exchange (RMCE) is a technique that …

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Identifying And Knocking Out Deep Brain Photoreceptors In The Larval Zebrafish Optic Tectum, Allison Pickens Mar 2023

Identifying And Knocking Out Deep Brain Photoreceptors In The Larval Zebrafish Optic Tectum, Allison Pickens

Undergraduate Honors Theses

Deep brain photoreceptors (DBPs) are light sensing neurons present in mammals and non-mammalian vertebrates. In non-mammalian vertebrates, studies have shown DBP involvement in various time and light dependent behaviors including circadian rhythm, phototaxis, and seasonal reproduction. In adult teleosts, DBPs are present throughout the brain, including the optic tectum (OT), a multilaminated midbrain structure responsible for multisensory integration. While their approximate location in teleosts is known, little is known about DBP’s functionality. In this study, we focused on DBPs present in the larval zebrafish OT. Single-cell RNA sequencing of the larval zebrafish OT showed the presence of several opsins. We …

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Analyzing Online Media Platforms For Hacktivist Group Organization And Proliferation, Quincy Taylor Mar 2023

Analyzing Online Media Platforms For Hacktivist Group Organization And Proliferation, Quincy Taylor

Undergraduate Honors Theses

The anonymity and lack of censorship online provides the perfect environment for hacker activists to pursue social change. The expansive reach and democratic access to social media has empowered groups to organize and develop messaging to specifically fit an online audience. As social media become ubiquitous, the reputation and use of messaging application have become mainstream. Due to a self-professed focus on privacy, platforms like Telegram have become the norm for hosting the hacktivist communities. The purpose of this research was to understand the features in Telegram messages that correlate with the most engagement from their audience. As expected, the …

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Control Education For Societal-Scale Challenges: A Community Roadmap, John Anthony Rossiter, Christos G. Cassandras, João Hespanha, Sebastian Dormido, Luis De La Torre, Gireeja Ranade, Antonio Visioli, John Hedengren, Richard M. Murray, Panos Antsaklis, Francoise Lamnabhi-Lagarrigue, Thomas Parisini Mar 2023

Control Education For Societal-Scale Challenges: A Community Roadmap, John Anthony Rossiter, Christos G. Cassandras, João Hespanha, Sebastian Dormido, Luis De La Torre, Gireeja Ranade, Antonio Visioli, John Hedengren, Richard M. Murray, Panos Antsaklis, Francoise Lamnabhi-Lagarrigue, Thomas Parisini

Faculty Publications

This article focuses on extending, disseminating and interpreting the findings of an IEEE Control Systems Society working group looking at the role of control theory and engineering in solving some of the many current and future societal challenges. The findings are interpreted in a manner designed to give focus and direction to both future education and research work in the general control theory and engineering arena, interpreted in the broadest sense. The paper is intended to promote discussion in the community and also provide a useful starting point for colleagues wishing to re-imagine the design and delivery of control-related topics …

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Simulations Of Morphology Control Of Self-Assembled Amphiphilic Surfactants, Qinyu Zhu, Douglas R. Tree Mar 2023

Simulations Of Morphology Control Of Self-Assembled Amphiphilic Surfactants, Qinyu Zhu, Douglas R. Tree

Faculty Publications

One of the grand challenges of amphiphilic self-assembly is the design of ordered structures whose morphology or shape can be explicitly and dynamically controlled by adjusting the properties of the amphiphiles or their surroundings. Such a capacity would enable researchers to create synthetic systems with functionality that meets or exceeds biological cells, and provide a robust platform for a broad range of engineering applications such as artificial tissues, drug delivery, and separation membranes. Despite significant progress, important fundamental questions remain unanswered, due in part to the limited resolution and the restricted parameter spaces that are readily accessible in experiments. Computational …

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Creating A Homophone-Based Chinese Language Censorship Evasion Tool, Emily Quan Mar 2023

Creating A Homophone-Based Chinese Language Censorship Evasion Tool, Emily Quan

Undergraduate Honors Theses

As the scope of Chinese language censorship expands, individuals will seek to bypass such censorship efforts. One of the most prevalent techniques in such censorship is automated keyword filtering. This research focuses on building a command-line tool that can bypass automated keyword filters for both traditional and simplified Chinese characters using a two-part approach. The first part involves detecting sensitive words in user-inputted text by using phrase matching techniques to identify character strings that have been censored in the past. The second part centers around generating possible obfuscated homonym alternatives. The tool relies on a compiled list of banned and …

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Simulations Of Morphology Control Of Self-Assembled Amphiphilic Surfactants, Qinyu Zhu, Douglas R. Tree Mar 2023

Simulations Of Morphology Control Of Self-Assembled Amphiphilic Surfactants, Qinyu Zhu, Douglas R. Tree

Faculty Publications

One of the grand challenges of amphiphilic self-assembly is the design of ordered structures whose morphology or shape can be explicitly and dynamically controlled by adjusting the properties of the amphiphiles or their surroundings. Such a capacity would enable researchers to create synthetic systems with functionality that meets or exceeds biological cells, and provide a robust platform for a broad range of engineering applications such as artificial tissues, drug delivery, and separation membranes. Despite significant progress, important fundamental questions remain unanswered, due in part to the limited resolution and the restricted parameter spaces that are readily accessible in experiments. Computational …

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Concentrating E. Coli At Initial Low Concentrations By Centrifugation With Phosphate Buffered Saline, Plasma, And Simulated Blood Suspensions, Sarah Williams Mar 2023

Concentrating E. Coli At Initial Low Concentrations By Centrifugation With Phosphate Buffered Saline, Plasma, And Simulated Blood Suspensions, Sarah Williams

Undergraduate Honors Theses

The rapid diagnosis of blood stream infections (BSIs) is limited by the low concentration of bacteria in the blood. Currently, culturing of blood samples is used to increase the concentration of bacteria before the type of bacteria and the best antibiotic to treat the infection can be identified. However, the culturing of blood samples takes tens of hours, and therefore concentrating the bacteria from blood without growth will allow for quicker analysis and is crucial to saving lives. This thesis explored the means of concentrating E. coli suspensions in phosphate buffered saline (PBS), plasma, and simulated blood by centrifuging the …

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Elevating The Silicon Slopes, Joseph Evans Mar 2023

Elevating The Silicon Slopes, Joseph Evans

Undergraduate Honors Theses

From Utah’s humble beginnings in agriculture and mining, Utah has become an economic powerhouse in the United States, largely due to the rise of Silicon Slopes. Despite the successes of Silicon Slopes, there are still significant shortcomings related to diversity and inclusion in Silicon Slopes that must be remediated if it intends to achieve its economic aspirations and ensure its economic benefits flow to people of all types and backgrounds. This work outlines both the rise of Silicon Slopes as well as existing and potential private- and state-ordered solutions that may be implemented to overcome Silicon Slopes’ existing diversity and …

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Creating The Listener Language: A Constructed Language With Semantic Rhythms And Tones, Dallyn H. Mccracken Mar 2023

Creating The Listener Language: A Constructed Language With Semantic Rhythms And Tones, Dallyn H. Mccracken

Undergraduate Honors Theses

Through creating a language that uses semantic rhythms to convey information in ways that typical intonation does not, I was able to see the benefits and drawbacks of strict semantic intonation. The Listener language replaces intonation with rhythms, and it uses rhythms in place of intonation in cases where intonation would generally be used in other languages, though it also uses rhythms in all other speech. Rhythms in the Listener language are grammatical, and speaking the language without the rhythms is considered to be ungrammatical. During the language construction process, there were several setbacks, both expected and unexpected. The Listener …

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A Model For Multi-Input Mechanical Advantage In Origami-Based Mechanisms, Jared Butler, Adam Shrager, Timothy Simpson, Landen Bowen, Mary Frecker, Robert Lang, Eric Wilcox, Paris Von Lockette, Larry L. Howell, Spencer P. Magleby Mar 2023

A Model For Multi-Input Mechanical Advantage In Origami-Based Mechanisms, Jared Butler, Adam Shrager, Timothy Simpson, Landen Bowen, Mary Frecker, Robert Lang, Eric Wilcox, Paris Von Lockette, Larry L. Howell, Spencer P. Magleby

Faculty Publications

Mechanical advantage is traditionally defined for single input and single-output rigid-body mechanisms. A generalized approach for identifying single-output mechanical advantage for a multiple-input compliant mechanism, such as many origami-based mechanisms, would prove useful in predicting complex mechanism behavior. While origami-based mechanisms are capable of offering unique solutions to engi neering problems, the design process of such mechanisms is complicated by the interaction of motion and forces. This paper presents a model of the mechanical advantage for multi input compliant mechanisms and explores how modifying the parameters of a model affects their behavior. The model is used to predict the force-deflection …

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Developable Mechanisms On Regular Cylindrical Surfaces, Jacob R. Greenwood, Spencer P. Magleby, Larry L. Howell Mar 2023

Developable Mechanisms On Regular Cylindrical Surfaces, Jacob R. Greenwood, Spencer P. Magleby, Larry L. Howell

Faculty Publications

Developable mechanisms can provide high functionality and compact stowability. This paper presents engineering models to aid in the design of cylindrical developable mechanisms. These models take into account the added spatial restrictions imposed by the developable surface. Equations are provided for the kinematic analysis of cylindrical developable mechanisms. A new classification for developable mechanisms is also presented (intramobile, extramobile, and transmobile) and two graphical methods are provided for determining this clas sification for single-DOF planar cylindrical developable mechanisms. Characteristics specific to four-bar cylindrical developable mechanisms are also discussed.

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Large Deflection Analysis Of General Beams In Contact-Aided Compliant Mechanisms Using Chained Pseudo-Rigid-Body Model, Mohui Jin, Collin Ynchausti, Xianmin Zhang, Zhou Yang, Benliang Zhu, Larry L. Howell Mar 2023

Large Deflection Analysis Of General Beams In Contact-Aided Compliant Mechanisms Using Chained Pseudo-Rigid-Body Model, Mohui Jin, Collin Ynchausti, Xianmin Zhang, Zhou Yang, Benliang Zhu, Larry L. Howell

Faculty Publications

The nonlinear analysis and design of contact-aided compliant mechanisms (CCMs) are challenging. This paper presents a nonlinear method for analyzing the deformation of general beams that contact rigid surfaces in CCMs. The large deflection of the general beam is modeled by using the chained pseudo-rigid-body model. A geometry constraint from the contact surface is developed to constrain the beam’s deformed configuration. The contact analysis problem is formulated based on the principle of minimum potential energy and solved using an optimization algorithm. Besides, a novel technique based on the principle of work and energy is proposed calculate the reaction force/moment of …

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Extra, Extra, Read All About It: An Analysis Of News Platform Preferences, Gabrielle Shiozawa Mar 2023

Extra, Extra, Read All About It: An Analysis Of News Platform Preferences, Gabrielle Shiozawa

Undergraduate Honors Theses

This thesis analyzes the correlation between age, political leaning, and the way people interact with news media by examining data from a sample survey of 254 news consumers. Results indicate that older and/or more conservative people are more likely to get their news from print newspapers, cable news, broadcast, and radio, while younger and/or more progressive individuals are more likely to get their news from social media. Younger and/or more progressive people are also more likely to trust the news than their older and/or more conservative counterparts. Subjects across the board preferred reading articles to watching the news, with no …

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Sources Of Atmospheric Dust Deposition On Utah Lake, Justin Telfer Mar 2023

Sources Of Atmospheric Dust Deposition On Utah Lake, Justin Telfer

Theses and Dissertations

Atmospheric deposition (AD) is a significant source of nutrient loading to waterbodies around the world. However, the sources and loading rates are poorly understood for major waterbodies and even less understood for local waterbodies. Utah Lake is a eutrophic lake located in central Utah, USA, and has high nutrient levels. Recent research has identified AD as significant sources for nutrient loading to the lake to better understand the dust AD sources, we sampled suspected source locations and collected deposition samples around the lake. We analyzed these samples using Inductively Coupled Plasma (ICP) for 25 metals to characterize their elemental fingerprints. …

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Nutrient Loadings To Utah Lake From Bulk Atmospheric Deposition, Mitchell Matthew Brown Mar 2023

Nutrient Loadings To Utah Lake From Bulk Atmospheric Deposition, Mitchell Matthew Brown

Theses and Dissertations

Atmospheric deposition is a marginally understood source of nutrient loadings to waterbodies. Atmospheric deposition occurs via wet (rain, snow) and dry (gaseous and particulate transport) pathways. Bulk atmospheric deposition is defined as the total deposition from both wet and dry pathways. Utah Lake is a shallow eutrophic freshwater lake located in central Utah, USA. Recent studies have shown atmospheric deposition to be a significant contributor to the nutrient budget of Utah Lake. This study presents the analysis using three different methods of six years' worth of wet atmospheric deposition samples from nine locations around the lake, though these samples do …

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Rigidly Foldable Thick Origami Using Designed-Offset Linkages, Robert J. Lang, Nathan Brown, Brian Ignaut, Spencer P. Magleby, Larry L. Howell Mar 2023

Rigidly Foldable Thick Origami Using Designed-Offset Linkages, Robert J. Lang, Nathan Brown, Brian Ignaut, Spencer P. Magleby, Larry L. Howell

Faculty Publications

We present new families of thick origami mechanisms that achieve rigid foldability and parallel stacking of panels in the flat-folded state using linkages for some or all of the hinges between panels. A degree-four vertex results in a multi-loop eight-bar spatial mechanism that can be analyzed as separate linkages. The individual linkages are designed so that they introduce offsets perpendicular to the panels that are mutually compatible around each vertex. This family of mechanisms offers the unique combination of a planar unfolded state, parallel-stacked panels in the flat folded state, and kinematic single-degree-of-freedom motion from the flat- unfolded to the …

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A Design Approach To Fully Compliant Multistable Mechanisms Employing A Single Bistable Mechanism, Yanjie Gou, Guimin Chen, Larry L. Howell Mar 2023

A Design Approach To Fully Compliant Multistable Mechanisms Employing A Single Bistable Mechanism, Yanjie Gou, Guimin Chen, Larry L. Howell

Faculty Publications

A fully compliant multistable mechanism is a monolithic structure that is capable of staying at multiple positions without power input, and has many applications including switches, valves, positioners. However, it is difficult to design such a mechanism because of the complexities of the multistable behavior, the practical stress limits and the buckling constraints. This paper discusses the design approach for fully compliant multistable mechanisms which employs a single bistable mechanism and several end-effectors connected in series. The force-displacement characteristics of the end-effectors are derived using the pseudo-rigid-body model. The design approach to the fully compliant multistable mechanism is provided to …

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