Digital Commons Network^™

Making Loud Noises Quiet, Logan Voigt, Nicholas Williams

Electrical and Computer Engineering

Guns are loud. Putting on ear protection takes time. Hunters need to listen for animals, so they can not wear ear protection constantly. Hunters have limited time to react when they see their target. They do not have time to put on ear protection. The Shot Silencer protects hunters’ hearing by actively noise cancelling the sound of the gunshot.

Sdgpu - Fpga Linux Gpu, Usu Department Of Electrical And Computer Engineering

Electrical and Computer Engineering

• Video output and accelerated rendering are an increasing important need for personal computers.
• FPGAs provide a hardware platform for reconfigurable hardware acceleration.
• This project involves designing and building a hardware platform, FPGA logic, and Linux driver stack for video output and accelerated rendering.
• Targeting a PCIe add-in card form factor with 1080p 60 Hz output via HMDI means the system works out of the box with nearly all modern hardware.
• An extensible software and HDL design serves to provide a platform for computational and graphical acceleration.

Mahanoy Area School District V. B.L.: The Court Protects Student Social Media But Leaves Unanswered Questions, David L. Hudson Jr.

Law Faculty Scholarship

In Mahanoy Area School District v. B.L.: The Court Protects Student Social Media but Leaves Unanswered Questions, published in the Cato Supreme Court Review, David L. Hudson Jr. analyzes the U.S. Supreme Court’s landmark decision addressing the scope of public schools’ authority over off-campus student speech on social media. Situating Mahanoy within the Court’s broader K–12 student speech jurisprudence—from Barnette and Tinker to Fraser, Hazelwood, and Morse—the Article explains how the Court declined to adopt a categorical rule excluding off-campus speech from regulation while nevertheless ruling in favor of the student. The majority recognized diminished school …

Card Barn, Taylor Nielson, Nicholas Wallace

Electrical and Computer Engineering

Create an automatic card storage system.

• The user first provides a stack of cards to be inventoried, and then allows the system to scan each card and store the scanned cards in a storage bin for later retrieval.
• The user can query the system for what cards are stored in the system, and the system will inform the user of which bin the desired card is in.

Enxor Open-Source Logic Analyzer, Matthew Crump

Electrical and Computer Engineering

Professional grade logic analyzers can cost a fortune, putting these devices out of reach from students and electronic hobbyists

• Enxor is an open-source FPGA project allowing anyone to use or customize it
• Enxor can be used to monitor external signals or added as a submodule in a larger FPGA allowing internal signal testing
• No device specific modules allowing Enxor to run on any FPGA
• User interface works on Windows and Linux

Modular Engine Control System (Mecs), Christian Hogan

Electrical and Computer Engineering

There are two purposes of this project:

• Develop an open source platform for designing electronic engine control systems
• Demonstrate the platform by designing an electronic control system for a small gasoline powered engine

Demonstration Objectives:

• Modify a small gasoline engine to run on electronic control
• Write a VHDL library
• Construct all components and wiring in a durable fashion

Code Learning Laptop, Max Gesullo

Electrical and Computer Engineering

• Learning basic coding skills on your own is difficult. You need to worry about the language, coding programs, and instructional content
• The above barriers to entry keep people from starting to learn coding who would otherwise enjoy it
• This project is designed to consolidate all the resources needed to learn basic coding concepts into one easy to use device

Plugsy Gardening System, Brandon Deakin, Andrew Williams, Daniel Beckett

Electrical and Computer Engineering

The Planting and Landscaping Utility Gardening System for You (PLUGSY) is an automated garden system. The PLUGSY performs many gardening tasks, including planting, watering, and weeding the garden.

The purpose of the PLUGSY is to make gardening more accessible and enjoyable. This will help remove some of the barriers that people experience when first getting into gardening. These include barriers such as limited time, burnout, and lack of gardening knowledge. The PLUGSY helps solve all of these barriers by performing the most time consuming and tedious tasks for the user. In this way, the PLUGSY will be able to help …

Covid-19 And Corporate Social Responsibility: Business Responses To The Pandemic In The Inland Northwest, Jacob H. Rooksby

Law Faculty Publications

The novel coronavirus upended the world beginning in early spring of 2020. As travel ground to a halt, and governments issued stay-at-home orders, the impact on commerce was immediate and has proven to be lasting. Employees accustomed to working in offices and job sites were told to stay home. Certain industries received permission to have so-called “essential” personnel continue their labor in person, but for many employers the reality they faced was not so simple: learn to adapt to the new environment or succumb to the new environment. ...

Coming To Terms: Using Contract Theory To Understand The Detroit Water Shutoffs, Marissa Jackson Sow

Law Faculty Publications

After the City of Detroit underwent financial takeover and filed the largest municipal bankruptcy in American history in 2013, the city’s emergency manager encouraged mass water shutoffs as a way of making the city’s water utility a more attractive asset for sale—and for privatization—by ridding the water department of its association with bad debt. The sale never took place, but the water shutoff, too, became the largest ever in American history, with over 141,000 homes subjected to water disconnections over a period of over six years. The governor of the State of Michigan ordered that the shutoffs be temporarily suspended …

Catalog 2021-2022, University Of North Florida

UNF Course Catalogs

No abstract provided.

Adolescent Obesity Case Study, Rachel Salvitti

All Student-Created Educational Resources

This handout shows some easy to digest information regarding adolescent obesity. It is targeted towards girls and suggests what they should or should not include in their daily habits to reduce their risk or continued development of obesity. The information presented is based off of MyPlate recommendations, as well as other studies of dietary interventions to improve health of adolescents suffering from or at risk of obesity.

Salad With Clams: Prey Choice Of An Intentionally Carnivorous Turtle, Kayleigh R. Erazmus, Luca Luiselli, Russell L. Burke

Biology Faculty Publications

Prey choice is the non-random foraging and consumption of prey species by their predators, and is therefore the basis for studies of topics as diverse as quantifying food webs, predator–prey relationships, and optimal-foraging models. Malaclemys terrapin (Diamond-back Terrapin) is a diet generalist with a large geographic distribution: the US Atlantic and Gulf coasts from Massachusetts to Texas. Individual terrapins have relatively small home ranges and feed primarily on local mollusc species. In feeding trials with 1 prey species and 2 prey species, wild-caught terrapins from New York readily consumed Mya arenaria (Soft-shelled Clam) and Geukensia demissa (Atlantic Ribbed Mussel), preferring …

Flight And Dietary Antioxidants Influence Antioxidant Expression And Activity In A Migratory Bird, Kristen J. Demoranville, Wales A. Carter, Barbara J. Pierce, Scott R. Mcwilliams

Biology Faculty Publications

Ecologically-relevant factors such as exercise and diet quality can directly influence how physiological systems work including those involved in maintaining oxidative balance; however, to our knowledge, no studies to date have focused on how such factors directly affect expression of key components of the endogenous antioxidant system (i.e., transcription factors, select antioxidant genes, and corresponding antioxidant enzymes) in several metabolically active tissues of a migratory songbird. We conducted a 3-factor experiment that tested the following hypotheses: (H1) Daily flying over several weeks increases the expression of transcription factors NRF2 and PPARs as well as endogenous antioxidant genes (i.e., CAT, SOD1, …

A Complex Interplay Between Balancing Selection And Introgression Maintains A Genus-Wide Alternative Life History Strategy, Kalle Tunstrom, Alyssa Woronik, Joseph J. Hanly, Pasi Rastas, Anton Chichvarkhin, Andrew D. Warren, Akito Kawahara, Sean D. Schoville, Vincent Ficarrotta, Adam H. Porter, Ward B. Watt, Arnaud Martin, Christopher W. Wheat

Biology Faculty Publications

Alternative life-history strategies (ALHS) are genetic polymorphisms generating phenotypes differing in life histories that generally arise due to metabolic resource allocation tradeoffs. Although ALHS are often be limited to a single sex or populations of a species, they can, in rare cases, be found among several species across a genus. In the butterfly genus Colias, at least a third of the species have a female limited ALHS called Alba. While many females develop brightly pigmented wings, Alba females reallocate nitrogen resources used in pigment synthesis to reproductive development, producing white-winged, more fecund females. Whether this ALHS evolved once or …

Gephyrin-Lacking Pv Synapses On Neocortical Pyramidal Neurons, Dika A. Kuljis, Kristina D. Micheva, Ajit Ray, Waja Wegner, Ryan Bowman, Daniel V. Madison, Katrin I. Willig, Alison L. Barth

Biology Faculty Publications

Gephyrin has long been thought of as a master regulator for inhibitory synapses, acting as a scaffold to organize γ-aminobutyric acid type A receptors (GABA_ARs) at the post-synaptic density. Accordingly, gephyrin immunostaining has been used as an indicator of inhibitory synapses; despite this, the pan-synaptic localization of gephyrin to specific classes of inhibitory synapses has not been demonstrated. Genetically encoded fibronectin intrabodies generated with mRNA display (FingRs) against gephyrin (Gephyrin.FingR) reliably label endogenous gephyrin, and can be tagged with fluorophores for comprehensive synaptic quantitation and monitoring. Here we investigated input- and target-specific localization of gephyrin at a defined …

Law's Ability To Further The "Menstrual Movement", Christopher A. Cotropia

Law Faculty Publications

"The current menstrual movement calls for overcoming the cultural stigma associated with menstruation, achieving “menstrual equity,” and ending “period poverty.” The stigma the movement seeks to address is that menstruation is seen as taboo, unclean, and impure. The movement’s aims are twofold: First, it wants to increase awareness of menstruation and remove discrimination against those who menstruate, thus achieving menstrual equity. Second, it intends to provide greater access to menstrual hygiene products (“MHPs”), particularly for homeless and lower income people, thus eliminating period poverty. To achieve these goals, the movement is advocating to legislatively eliminate the “tampon tax” and increase …

Single Machine Washer Dryer, Usu Department Of Electrical And Computer Engineering

Electrical and Computer Engineering

Current Washer-Dryer Units take over 6 hours to completely clean a single load of laundry

• The drying cycle is what causes the long cycle time
• To dry the clothes, a dehumidifier is employed to remove water, little to no heat is used to help dry

This system

• Uses a modified drum to create more space inside the machine

Speak Tool, Eric Rowles

Electrical and Computer Engineering

Speech instructors are important to help students speak accurately and clearly.

However, the most important part of learning is practice. Students can currently only practice while with their speech instructor.

This tool would allow students to practice while away from their instructor. This would help them learn more quickly and effectively.

Instructors would also be able to use this tool to monitor student progress.

Zootap, Zane Winkler

Electrical and Computer Engineering

A day at the zoo can be stressful. ZooTap solves two of the biggest problems found at every zoo.

1. Customers not being able to find Zoo Animals
2. Zoo customers not staying at an exhibit for an extended period of time

With ZooTap, you and your kids will be able to interact with every animal physically and digitally with the use of a cell phone

ZooTap will result in adults and kids being more involved in a single exhibit at any zoo. Aiding them in finding animals and causing them to stay at an enclosure for a longer amount of time

Space Weather Probes (Swp), Jason Powell, Levi Norman, Connor Landeen

Electrical and Computer Engineering

Problem:

Ionospheric plasma bubbles distort radio waves, causing disruptions with satellites to ground stations

Solution:

The objective of SWP is to understand the preconditions leading to plasma bubbles

• The is accomplished by measuring the electron density, 𝑛_𝑒, of the plasma environment in the Earth’s Ionosphere
• Previous Iterations of this project have been designed at the CSE (Most recently SPORT). This design attempts to improve upon those designs. 

Walkmatic, Chaz Cornwall, Ryan Berg

Electrical and Computer Engineering

The Walkmatic is a baby push toy with automated steering to keep babies from pushing the toy into walls or down the stairs. Parents who are anxious to watch their child learn how to walk will often buy push toys to help their child stand up while they learn to walk. Unfortunately, parents must constantly guide the push toy to prevent the baby from pushing it into obstacles. This can take a toll on parents’ backs and knees. With the Walkmatic, parents can relax while they watch their baby play with their fun new toy.

When the Walkmatic is first …

The Effects Of Singing Vs. Speech On Joint Engagement In A Young Child With Phelan-Mcdermid Syndrome, Marllys Banks, Hannah Kinney, Bridget Valla, Maura Jones Moyle

Speech Pathology and Audiology Faculty Research and Publications

Phelan-McDermid syndrome (PMS) is a rare genetic disorder typically caused by loss or disruption of the distal long arm of chromosome 22. Children with PMS exhibit severe to profound communication deficits, and the majority meet the criteria for Autism Spectrum Disorder (ASD). To date, no language or communication intervention studies focused on children with PMS exist in the literature despite a steady increase in diagnosed cases. Anecdotally, it has been reported that music facilitates learning and engagement in children with PMS. The purpose of this clinical case study is to investigate the effects of singing vs. speaking on joint engagement, …

Health Risk Assessment Of Burmese Related To Consumption Of Heavy Metals Contaminated Fish From Local Market In Bangkok, Thailand, Myat Myitzu

Chulalongkorn University Theses and Dissertations (Chula ETD)

Heavy metals contamination in human through the ingestion of contaminated fish may lead to serious health problems. This study was a cross sectional study conducted during February and March 2022 in Bangkok, Thailand. The objectives of this study were 1) to find the concentration of heavy metals contaminated in fish from local market in Thailand 2) to find the cancer risk and non-cancer risk of heavy metals from fish consumption. Face-to-face interview and online questionnaire were used to collect the personal information of 400 Burmese living in Bangkok. As, Cd, Cr, Pb, and Hg were analyzed by ICP-MS from four …

Optimization Of Ethanol-Based Reactive Extraction Process For Spent Coffee Grounds Biodiesel Production Using Duo-Function Diazabicycloundecene As Catalyst And Solvent, Huan Luong Trien

Chulalongkorn University Theses and Dissertations (Chula ETD)

The intention of this master's thesis was conducted to evaluate the potential of using 1,8-Diazabicyclo [5.4.0] undec-7-ene (DBU) as an eco-friendly solvent and catalyst in the in-situ transesterification (in-situ TE) process for producing fatty acid ethyl ester (FAEE) from spent coffee grounds (SCGs) waste. Several parameters were also optimized the FAEE yield in this process by response surface methodology, including temperature, time, ethanol and DBU loading and water content in ethanol. Results showed that promising FAEE yield could achieved under 40 °C. Moreover, FAEE yield tended to decrease under high temperatures due to DBU and ethanol evaporation at 70 °C. …

Physical Property And Biological Activity Of Bioscaffold Containing The Extracted Native Collagen And Acemannan On Proliferation And Growth Factor Secretion In Primary Human Pulpal Cells, Aye Aye Thant

Chulalongkorn University Theses and Dissertations (Chula ETD)

Dental pulp tissue regeneration is based on tissue engineering concepts using stem cells, scaffolds, and growth factors to regenerate the pulp-dentine complex. Up to now, native collagen is commonly used as a biomaterial scaffold for tissue regeneration due to its biocompatibility, biodegradability, and properties that mimic the natural extracellular matrix (ECM). However, the bioactivity of collagen scaffold on cell growth and differentiation, and regenerative activities such as extracellular matrix formation and growth factor secretion which are important for pulp revascularization and regeneration and accomplishment root formation is still unclear. Many studies elucidated that adding biomolecules into the collagen scaffold enhanced …

Spatial Heterogeneity Distributions And Seasonal Variations Of Microplastic Contaminations In Surface Waters And Sediments And Microplastic Pollution Level Assessments Of The Inner Gulf Of Thailand, Pathompong Vibhatabandhu

Chulalongkorn University Theses and Dissertations (Chula ETD)

Microplastics or the plastic particles less than 5 mm are the emerging pollutant that may be threat in marine ecosystems. Due to uncertainty in behavior of microplastics in the environment, this research objectives to analyze the characteristics of microplastic contaminations in surface waters and sediments of the inner Gulf of Thailand. The surface waters and sediments in dry season and wet season of 2018 were sampled from the coastal sea and the river estuaries of Mae Klong, Ta Chin, Chao Phraya, and Bang Pakong rivers. The analysis found that the influence of wet season increased contamination of microplastics from dry …

Parking Problems And Policies In Bangkok: Issues, Causes, And Implications, Chakaphan Chullabodhi

Chulalongkorn University Theses and Dissertations (Chula ETD)

Parking policies are integral to promoting sustainable urban mobility and enhancing a city's livability as they can shift people's movement toward more sustainable modes. However, Bangkok still lacks a concrete parking policy. The existing one consists primarily of regulations and standards that help reduce traffic congestion, albeit without well-defined policy objectives. This study examines the current problems of on-street and off-street parking policies, investigates the root causes of parking issues, and establishes a parking policy that supports the city's development of sustainable mobility. We used a modified conceptual framework comprising the Iceberg Model of analysis and the Political Economics Analysis …

An Sdn-Coordinated Multipath Transmission Steering Framework, Kiattikun Kawila

Chulalongkorn University Theses and Dissertations (Chula ETD)

Data transfer is a primary mechanism that can directly affect the overall performance of Big Data analytic systems. This is because most data are generated from several locations. It has been challenging to collect and transfer data among multiple storage regions. Using the traditional single-path transfer approaches is not efficient to serve several requirements of Big Data applications. In this dissertation, we propose an SDN-coordinated multipath transmission steering framework for Big Data transfer application. Multipath TCP protocol (MPTCP) and SDN architecture are mainly considered to design and develop our multipath transmission framework. To provide a practical routing solution, we propose …

The Cross-Sectional Return Dispersion With Momentum Strategyand The Spill Over Across Fx And Equity Markets, During Covid-19, Pisit Grittiyarangsan

Chulalongkorn University Theses and Dissertations (Chula ETD)

This paper investigates the relation of momentum strategy and the return dispersion across currency and global equity markets by using 30 currency pairs and 30 global equity indices during last 2 decades. This paper also examines the lead-lag relationship of return dispersions through spillover from one market to another. In addition, we are successfully detected the relation between return dispersion of those market and the significant return by momentum strategy on currency market. However, we cannot detect significant positive return by using momentum strategy on global equity indices, so we cannot use the return dispersion from the lead market as …