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Removal of Residual Stress in 3D Printed Polymers
Get PDFThis project aims to investigate the relationship between stress relaxation and the reduction of dimensional shrinkage and warping in 3D printed polymers produced through fused filament fabrication. The hypothesis suggests that residual stress in 3D printed structures results from factors such as temperature differences, molecular-level contributions, and rapid cooling, causing post-printing warpage and damage. To mitigate these issues, the project proposes annealing 3D printed polymers in a hot sandbath to allow stress relaxation without warping. The study will employ a Dynamic Mechanical Analysis (DMA) machine to assess mechanical properties of relaxed and unrelaxed samples, comparing their effectiveness. The project\u27s timeline spans from October to April, culminating in a report for The University of Akron Williams Honors College, which will be presented in a research showcase
Determination of Spore Viability in Concrete across Several Factors Using Most Probable Number
Get PDFTo determine the lowest concentration of spore added to polyurethane-cement composite (PUCCO) particles that can still germinate after curing in concrete. This research project is a small addition to the larger research project being undertaken by Mirza Mohammed Rashiduzzaman for his Masters. The larger project involves the use of fungal spores added in concrete to act as a self-healing component when cracks form in the concrete structure over time. These spores are suspended in a protective oil and loaded into small, hardened sponge-like PUCCO cubes to act as growth points when water and air can reach the PUCCO in the concrete structure. PUCCO have been loaded generally through a spore loading process that involves scraping/collection with vegetable oil. This leads to an unknown viability decrease of the PUCCO protected spores, going through concrete mixing, curing process, and different service. Determining the lower limit of spores needed reduces excess spore being wasted in the process, leading to increased output and reduced costs
The Effect of Early Intervention on Reducing Recidivism
Get PDFThe current punishment-based system has not led to promising recidivism rates showing the lack of effect it has on changing behavior. By working to understand the effect interventions can have on reducing recidivism, society can improve the criminal justice system. The intention of this paper is to show the benefits of moving to a system focused on rehabilitation instead of punishment, specifically for juvenile offenders. By conducting a literature review of available research, it can be seen that an incarceration-based system is not as effective as the implementation of intervention and prevention methods can be. Cognitive behavioral therapy and community-based programs have been observed to be the most effective of these programs at this time. With more work to change the system and the improvement of the implementation of these programs recidivism rates for juveniles could decrease from the current incarceration-based system
Constructing and Probing a Fortified Network
Get PDFComputer networking is extremely valuable and is essential to modern infrastructure and life. Due to this fact, network security is also extremely vital and is also constantly under attack due to how precious information is in the modern world. In order to set up network security and harden systems from attack, many organizations establish guidelines, standards and techniques to defend against such threats. There is also the major issue of needing to constantly test these different standards and procedures regarding network security as if these security measures are not tested, the danger of potential threats is exponential. This project seeks to determine whether or not current organization standards and guidelines regarding network security and network hardening are strong enough against current cyber threat actors using a basic secure and virtually created network. To accomplish this goal, it uses a virtualized basic but secure network for study purposes along with using penetration techniques to test the security features of the network. After determining whether or not the current guidelines are enough to defend against threats, suggestions of what could be improved upon and examinations into why certain guidelines are not followed closely enough when it comes to network security
Optimizing Metal 3D Printing
Get PDFPartnered with Lauren Novak we are doing our senior design project on optimizing metal 3D printing with the company nVent. A brief scope of the project is that nVent uses a metal 3D printer to create tooling that is used in a hydraulic pressed and used to create iterations of prototypes during the design process. We will be researching how to decrease the amount the time of the 3D print while doing load tests with vblocks, wiping tools, and a rib tool. The tests will be on the tooling made using different parameters including infill density, infill geometry, wall thickness, roof and floor thickness, and any others that can decrease the amount of time while keeping the needed strength of the tooling
A Comparison of Lexical Tokenization Methods
Get PDFThe purpose of this project was to compare tokenization methods, or methods of breaking up a text into meaningful parts for use in natural language processing. The effectiveness of several commonly used tokenization methods were investigated, including morpheme tokenization, which takes into account the linguistic features of the language. In addition, I proposed and implemented a new technique to consider the capitalization pattern of a word in the tokenization process, in order to allow this process to include more natural language features. The effectiveness of these methods was compared by using them in a sentiment analysis model for various datasets, including binary classification and multiclass classification datasets. This report summarizes these methods and the findings from the comparisons
Honors Project Hartville Potato Chips (Final) - College of Business - Team 5 (Marketing PartnerChip)
Get PDFTO EXPAND THE HARTVILLE POTATO CHIP COMPANY BRAND IN A WAY THAT WILL CREATE A UNIQUE POSITION IN THE MIND OF THE CONSUMER
UAV to Carry Heavy Loads
Get PDFOur senior design project aims to develop an innovative Unmanned Aerial Vehicle (UAV) capable of carrying heavy payloads up to 50 lbs. This UAV will address the growing demand for efficient and autonomous cargo transportation, unlocking new possibilities in logistics and remote deliveries. The primary goal is to design, build, and test a robust UAV platform equipped with advanced propulsion systems, stabilizing mechanisms, and a secure payload attachment system. The heavy-lift UAV will be capable of transporting payloads in challenging environments, enhancing its versatility for various industries, including emergency response, disaster relief, and commercial logistics. For the extent of this project, we created a scale model able to carry up to 2 pounds as a proof-of-concept