Presentations
The Presenter Directory is organized by last name. This is the best way to view the presenter’s project information.
The Symposium Schedule provides an overview of the agenda for the day. If you are looking for a specific session schedule, use the Session Schedule.
EFFICACY OF PRESATURATION FOR CONTROLLING THE EFFECTS OF EXPANSIVE SOIL BELOW SLAB-ON-GRADE IN SOUTHERN CALIFORNIA
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Kelly Bastidas, Jonathan Aguilar Cruz
Faculty Mentor(s): Mehrad Kamalzare
Abstract: In the field of Civil Engineering, addressing soil expansion often requires an in-depth understanding of chemistry to develop effective solutions. Hans T. has been researching and combining numerous studies to tackle the issue of soil expansion, which can cause significant lateral movements in structures, leading to unexpected shrinkage and uplift. This paper assumes that the implementation of various studied and reviewed solutions can significantly reduce the lateral movements caused by soil expansion. Solutions such as over excavation and replacement, chemical stabilization, perimeter water control, and pre-saturation have the potential to induce a reduction in structural shrinkage and uplift. Following a comprehensive literature review, we conducted a survey involving numerous individuals both in-person and online. The survey comprised approximately ten questions designed to assess the extent to which professionals consider pre-saturation a viable method for treating expansive soils and the success rate of the treatments. Utilizing this data, we aim to identify the state of practice in California using pre-saturation as a viable method to stabilize expansive soil, and to calculate the required pre-saturation depth based on previous research in expansive soil. This research is particularly beneficial to engineers constructing slab-on-grade foundations on expansive soils, as it could lead to significant reductions in both costs and construction time.
3D Modeling of Geowall Retaining Wall using Finfte Element Method
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Karen Yamiet Aguirre
Faculty Mentor(s): Mehrad Kamalzare
Abstract: Retaining walls are used to support structures specifically retaining soil laterally, which because of the stress points the walls can cause stone cracking which can be caused by poor drainage, and construction flaws. Among the works presented are new methods for creating retaining walls and experimenting with the different stress points of the retaining walls. Such examples include post-tensioned walls that can help with the resistance of the walls and new ways of soil mixing to have a solid base for the excavations. By using 3D modeling we can see the pressure points of each wall, that way researchers could move forward with the experiment. Some experiments included new coding formats and rendering the walls to not be on site but also to have a clearer idea of the site and needed materials. Other studies emphasize water erosion and how to make the wall resistant. The study is regarding a retaining wall built in the Beas River. A retaining wall on site would have to withstand water erosion by the river. The project's main point of the study was about the river and the channel’s activity but their work in retaining structures was seen as important due to the added water erosion variables. These studies report a correlation between different levels of stress and the walls' sturdiness. With the collection of these studies, we now know the different branches of research in developing retaining walls.
Lifestyle Prevention Tools for Individuals with Alzheimer's Type Pathology
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Amanda Rivada, Alyssa Alcala, Mario Sandoval
Faculty Mentor(s): Glenn Kageyama
Abstract: Alzheimer’s Disease (AD) is associated with a series of common biomarkers found in the pathology of those afflicted. Being one of the top causes of death in the modern day, the disease is heavily researched yet still has no known cure. In the interest of those at risk of developing AD later in life, our group has investigated possible prevention methods one can incorporate into their lifestyle to lower their own risk of dementia. Our research was focused on three main methods of prevention: diet, exercise, and nootropics. Beginning with brief background research on our respective areas, we established a solid foundation by collecting relevant primary research articles from multiple scholarly databases. After compiling and organizing our data, we sought to recognize any overlap between our topics that are associated with AD biomarkers. As a result, we have created a cohesive set of guidelines one can follow with the goal of improving one’s cognitive health long-term. We hope for our research to reach those at risk of AD as an alternative, proactive solution to the affliction.
Diets To Prevent Dementia: Comparing Blue Zone Diets with Health-Conscious Diets to Prevent Dementia in The Elderly
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Alyssa Alcala
Faculty Mentor(s): Glenn Kageyama
Abstract: Alzheimer’s Disease (AD) is associated with a series of common biomarkers found in the pathology of those afflicted. Despite the disease having no known cure, prevention is a reliable option for those looking into some form of treatment. In the interest of those at risk of developing AD later in life, our group has investigated possible prevention methods one can incorporate into their lifestyle to lower their own risk of dementia. My own research centered on the broad subject of dietary remedies, such as certain foods or habits that have been found to be of benefit to those struggling with mild cognitive decline due to AD. Beginning with brief background research on our respective areas, we established a solid foundation by collecting relevant primary research articles from multiple scholarly databases. After compiling and organizing our data, we sought to recognize any overlap between our topics that are associated with AD biomarkers, such as known anti-inflammatories or antioxidants that would prove restorative to someone at risk. My own research sought to compare known healthy diets with those found in blue zones, resulting in a generalized set of guidelines one can follow to hopefully decrease their own risk of dementia. We hope for our research to reach those at risk of AD as an alternative, proactive solution to the affliction.
Molybdenum Catalyzed Deoxydehydration of Vicinal Diols
Session 8: Health, Nutrition, and Clinical Science
Time: 3:15 PM
Location: BSC, Andromeda C
Authors: Lucy Alexandre, Olivia Kinney
Faculty Mentor(s): Alex John
Abstract: Our dependence on fossil fuels for energy and platform chemicals has raised concerns for both the environment and its dwindling supply. Thus, we aim to utilize biomass as a renewable source of feedstock. Biomass proves a challenge, as it is highly oxygenated and difficult to transform into usable chemicals for our needs. A possible sustainable option to replace our dependence on petroleum for the chemical feedstock is the use of molybdenum-catalyzed deoxydehydration (DODH) reactions to reduce the highly oxygenated biomass into useful olefins. Through altering ligands with different substituents, the effects of electronic properties, steric hindrance, and backbone rigidity on catalytic performance were evaluated. Utilizing a bulky group on the ortho and para positions on the ligand has elevated rates compared to other groups. Similarly, semi-rigid backbones such as a cyclohexyl group afford similar results. A completely rigid backbone such as a phenyl backbone completely hinders the reaction. Lastly, electronic effects can play a pivotal role in reaction rates as electronically withdrawing groups help while electron donating groups hinder the reaction. With these findings, summer work focused on the synthesis of novel ligand environments to investigate the effects of more extreme sterics and electronics, as well as combinations of previous designs. This presentation will cover how ligand effects influence reaction rate as well as yield of products. Initial observations about ongoing research into new ligand environments will be given, including synthesis, characterization, and additional challenges of these new designs.
A Literature Review of the Experiences of Parents of Children with IEP’s and How Feedback can Create a Welcoming Environment
Session 3: Behavioral, Social Sciences, and Public Administration
Time: 1:30 PM
Location: BSC, Andromeda A
Authors: Genesis Alvarado
Faculty Mentor(s): Socorro Morales
Abstract: This literature review will examine ten pieces of literature found through Google Scholar and the Cal Poly Pomona Online library. The research was conducted between the months of June and July. It will examine those involved in the process of developing an Individualized Educational Plan (IEP). A central question of this project is: “What are the experiences of parents and teachers in the IEP process?” This feedback can be used as suggestions for general and special education teachers, and related staff involved in IEP development. Parent feedback is organized into two main themes: a lack of communication and a lack of cultural understanding. In this instance, a lack of communication refers to parents being uninformed by educators of any information regarding what Special Education is or the overall process of an IEP. A lack of cultural understanding refers to parents feeling confused due to language barriers. Teacher feedback is organized into one major theme: a lack of professional preparation. This refers to general education teachers not being required to take Special Education courses for their credentials or not having extensive training. Suggestions for improving understanding sentiments in IEP meetings are based on the literature: stronger communication efforts and professional relationships, institutions requiring one or more Special Education courses for teaching credentials and/or extensive training, and better efforts to understand cultural differences by acquiring the necessary tools. Research in this area remains relevant because of the fact that literature demonstrates that parents continue to feel disregarded in the IEP process.
Impact of glutamate neuronal transmission in maintaining Synaptic Integrity of Demented vs Non-Demented Individuals that Express High Levels of Alzheimer’s Neuropathy
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Lee Tharachai, Juliette Arteaga, Kimberly Bercerra
Faculty Mentor(s): Glenn Kageyama
Abstract: Glutamate (Glu) is an amino acid abundant in all cell types and participates in numerous cellular functions. In neurons, it functions as the major excitatory neurotransmitter (Fonnum, 1984). To function as a neurotransmitter, glutamate must be packaged into synaptic vesicles within the presynaptic terminal. It then undergoes regulated release into the synaptic cleft. Glutamate is uploaded into the vesicles before its release into the presynaptic cleft through proton-dependent carriers called vesicular glutamate transporters (VGLUT) (Gasnier, 2000). The isotype VGLUT1 is highly expressed in the hippocampus, a region highly associated with learning and memory. Once glutamate is transported into vesicles, the vesicle associates with the integral membrane glycoprotein synaptophysin (Du, 2020). This association helps VGLUT1 dock onto the membrane of the presynaptic terminal where glutamate is exocytosis into the synaptic cleft (Figure 1). Alzheimer’s Disease (AD) is a neurodegenerative disease characterized by the abundance of beta-amyloid plaques (AB) and neurofibrillary tangles (NFT) of Tau. Dementia is a symptom commonly associated with AD. However, approximately 20-30% of individuals diagnosed with Alzheimer’s postmortem did not display the typical signs of dementia throughout their lifetime (NDAN) (Santa Cruz, 2011). Immunohistochemistry (IHC) was used to examine the relative abundance of synaptic marker proteins primarily synaptophysin and VGLUT1 within the CA1 region of the hippocampus between NDAN, AD, and control samples. The results indicate that NDAN cases expressed the highest level of staining for both synaptic markers within the CA1 region of the hippocampus. However, AD expressed the lowest level of staining for both synaptic markers.
EFFICACY OF PRESATURATION FOR CONTROLLING THE EFFECTS OF EXPANSIVE SOIL BELOW SLAB-ON-GRADE IN SOUTHERN CALIFORNIA
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Kelly Bastidas, Jonathan Aguilar Cruz
Faculty Mentor(s): Mehrad Kamalzare
Abstract: In the field of Civil Engineering, addressing soil expansion often requires an in-depth understanding of chemistry to develop effective solutions. Hans T. has been researching and combining numerous studies to tackle the issue of soil expansion, which can cause significant lateral movements in structures, leading to unexpected shrinkage and uplift. This paper assumes that the implementation of various studied and reviewed solutions can significantly reduce the lateral movements caused by soil expansion. Solutions such as over excavation and replacement, chemical stabilization, perimeter water control, and pre-saturation have the potential to induce a reduction in structural shrinkage and uplift. Following a comprehensive literature review, we conducted a survey involving numerous individuals both in-person and online. The survey comprised approximately ten questions designed to assess the extent to which professionals consider pre-saturation a viable method for treating expansive soils and the success rate of the treatments. Utilizing this data, we aim to identify the state of practice in California using pre-saturation as a viable method to stabilize expansive soil, and to calculate the required pre-saturation depth based on previous research in expansive soil. This research is particularly beneficial to engineers constructing slab-on-grade foundations on expansive soils, as it could lead to significant reductions in both costs and construction time.
Elevating the Online Presence of CPP Farm Store’s Gift Basket Products: A Search Engine Optimization (SEO) Strategy
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Heather Bautista
Faculty Mentor(s): In Hye Kang
Abstract: This project focuses on developing a Search Engine Optimization (SEO) marketing strategy for CPP Farm Store, specifically focusing on optimizing its gift basket products' online visibility. Leveraging tools like SEMRush, I conducted meticulous keyword research to identify and categorize high-value keywords. Building on the keyword research, I developed mock-up webpage designs, which include SEO-optimized webpage content, title tags, and meta description. The goal of this project is to boost CPP Farm Store's organic search ranking within the gift basket category on online search engine services, thereby increasing its online presence and competitiveness. This project not only serves the immediate needs of CPP Farm Store but also contributes valuable insights and practices to the broader landscape of SEO marketing strategies.
Impact of glutamate neuronal transmission in maintaining Synaptic Integrity of Demented vs Non-Demented Individuals that Express High Levels of Alzheimer’s Neuropathy
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Lee Tharachai, Juliette Arteaga, Kimberly Bercerra
Faculty Mentor(s): Glenn Kageyama
Abstract: Glutamate (Glu) is an amino acid abundant in all cell types and participates in numerous cellular functions. In neurons, it functions as the major excitatory neurotransmitter (Fonnum, 1984). To function as a neurotransmitter, glutamate must be packaged into synaptic vesicles within the presynaptic terminal. It then undergoes regulated release into the synaptic cleft. Glutamate is uploaded into the vesicles before its release into the presynaptic cleft through proton-dependent carriers called vesicular glutamate transporters (VGLUT) (Gasnier, 2000). The isotype VGLUT1 is highly expressed in the hippocampus, a region highly associated with learning and memory. Once glutamate is transported into vesicles, the vesicle associates with the integral membrane glycoprotein synaptophysin (Du, 2020). This association helps VGLUT1 dock onto the membrane of the presynaptic terminal where glutamate is exocytosis into the synaptic cleft (Figure 1). Alzheimer’s Disease (AD) is a neurodegenerative disease characterized by the abundance of beta-amyloid plaques (AB) and neurofibrillary tangles (NFT) of Tau. Dementia is a symptom commonly associated with AD. However, approximately 20-30% of individuals diagnosed with Alzheimer’s postmortem did not display the typical signs of dementia throughout their lifetime (NDAN) (Santa Cruz, 2011). Immunohistochemistry (IHC) was used to examine the relative abundance of synaptic marker proteins primarily synaptophysin and VGLUT1 within the CA1 region of the hippocampus between NDAN, AD, and control samples. The results indicate that NDAN cases expressed the highest level of staining for both synaptic markers within the CA1 region of the hippocampus. However, AD expressed the lowest level of staining for both synaptic markers.
Proton Single Events Effects Testing for CubeSAT Mission Assurance and Failure Analysis
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Matthew Chang, Pragun Bethapudi, Max Gross
Faculty Mentor(s): Tarek Elsharhawy
Abstract: The PROVES (Pleiades Rapid Orbital Verification Experimental System) CubeSat is a low-cost, modular bus launched three times into Low Earth Orbit (LEO), which experienced deployment failure in its first launch and short lifetimes of 50 minutes and 9.5 hours in its subsequent launches. In response to these short lifetimes, radiation testing was performed to investigate if radiation was a contributing factor. Specifically, the PROVES Flight Controller Board underwent irradiation with 200 MeV protons to a total fluence of 1e10, revealing a non-destructive Single Event Effect (SEE) error rate of 0.183 per system day and a destructive SEE error rate of 0.003 per system day. SEE testing was conducted using high-energy protons, as they are particularly concerning in Polar LEO due to trapped protons from the Van Allen Belts and solar flares. High-energy protons were selected for their cost-effectiveness and industry standard in board-level testing. The 97.5-degree inclination of the satellites also crosses the South Atlantic Anomaly (SAA), where heavy ions pose a risk, though they were not the paper's focus. The PROVES program opted for board-level testing over traditional component-level radiation testing due to cost efficiency and as an initial step to understanding radiation effects on a system level, prioritizing a holistic view of the board’s performance under radiation stress over detailed component analysis. After testing, analysis was conducted and it was concluded that the flash memory was disrupting the connection. Through research and integration, it was found that an magnetoresistive RAM would be better suited for the missions.
Mapping Legacies of Racial Violence in the era of Reconstruction
Session 3: Behavioral, Social Sciences, and Public Administration
Time: 1:00 PM
Location: BSC, Andromeda A
Authors: Veronica Black, Adam Tamengkel
Faculty Mentor(s): Peter Hanink
Abstract: The issue of racial violence in the United States stems from its histories of racism, slavery, and genocide. Following the Reconstruction era, the Bureau of Refugees, Freedmen, and Abandoned Lands (commonly referred to as the Freedmen's Bureau), from the years 1865 to 1868, kept records of murders and outrages committed against freedmen and union loyalists within former confederate states. Despite those records, the Freedmen's Bureau's legacy is not widely known. While research has been done using the archives to provide greater context to their respective states (Blair, 2021), and although recent research explores avenues of mapping relationships of racial and police violence (Muñoz Martinez, 2018; Schwartz and Jahn, 2020), there is little research that makes the legacy of the Freedmen's Bureau accessible. This project then aims to record and map these outrages understanding their contexts. Using the Freedmen's Bureau Online archives, each state's and their respective counties' documents will be standardized into a spreadsheet, which will then be prepared for geocoding. The data collected will then be mapped using ArcGIS Pro (ver. 3.1.3), representing each case as its own incident, providing individual records noted in the archives. While the archives of outrages are public, it is still underrepresented in U.S. history. The outrages occurring during Reconstruction highlight the U.S' history of racial violence in which similar patterns continue to exist in the present.
When Parents Become Strangers: Exploring the Dynamics of Toxic Parenting and Adult Child Estrangement
Session 3: Behavioral, Social Sciences, and Public Administration
Time: 1:15 PM
Location: BSC, Andromeda A
Authors: Daysy Bravo
Faculty Mentor(s): Rachel Baumsteiger
Abstract: The purpose of this presentation is to share key findings related to toxic parenting and to describe a study designed to evaluate how parenting styles affect emerging adults and their relationship with their parents. More specifically, it will examine toxic parenting: one of the most impactful and detrimental types of parenting. Toxic parenting can be characterized by behaviors such as manipulation, neglect, excessive control, and more (Reczek, Stacey, & Thomeer, 2023). These behaviors commonly result in adult children distancing themselves from their parents, often cutting all ties entirely. This study will address the decision-making factors that contribute to this phenomenon. In other words, the goal of this research is to understand better how toxic parenting influences adult children's decisions on whether to maintain, cautiously manage, or completely end their relationships with their parents, and to identify potential pathways for reconciliation or healing. Qualitative data will be collected via in-depth interviews with approximately 10-20 individuals who identify as children of toxic parents. These interviews will explore the specific parenting behaviors that contribute to estrangement and the personal experiences of the participants. Participant demographics will also be collected upon interviews to assess any existing group differences, such as age, family structure, religion, etc. Ultimately, this research aims to educate individuals and future parents about the effects of toxic parenting and facilitate healthier parent-adult relationships.
Mitigating Oxidative Toxicity in E-liquids: A Study on Aerosolized Chemicals
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Sagar Bulsara
Faculty Mentor(s): Adaickapillai Mahendran
Abstract: As vaping has grown in popularity, the chemistry and toxicity of vaping have emerged as key research areas whether it be vaping THC, CBD or simply just e-cigarettes. Scholars engaging in studying the chemistry and toxicity of vaping have found that there are many different chemicals used when creating the liquid (e-liquid) component of the vape which is used with a battery to aerosolize the liquid. However, my work addresses the oxidation of these chemicals and how to reduce their toxicity when being inhaled after being aerosolized. This research is designed to find the oxidants of the chemicals used in the e-liquid and create a filter which reduces the inhalation of these chemicals. We evaluated the oxidized products of e-liquid ingredients using reagents from Sigma-Aldrich and Thermo Fisher, prepared precise sample mixtures for Headspace Gas Chromatography/Mass Spectrometry (HS-GC/MS) analysis, and analyzed them under established conditions to assess their chemical behavior and toxicity. After conducting experiments using HS-GC/MS, we expect to identify the oxidants and to see how each chemical gets oxidized when aerosolized, and then go about creating a filter which removes a significant amount of those oxidized toxic products, leaving one with interesting compounds such as CBD/THC and nicotine. This work is significant because we will be looking at the harmful toxicants which come from aerosolizing the e-liquid in vapes. Then, we will create a filter which will remove a significant amount of those oxidized toxic products.
EfficientNet Application in Real-World Image Classification Applications
Session 7: Engineering and Computer Science
Time: 3:15 PM
Location: BSC, Perseus
Authors: Nikole Cabrera, Rayyan Hisham Abdul Jabbar, Alexander Torres
Faculty Mentor(s): John Korah
Abstract: EfficientNet Application in Real-World Image Classification Applications Rayyan Hisham, Nikole Cabrera, Alexander Torres Faculty Advisor: Dr. John Korah Image classification continues to be an essential application domain of AI since its conception. It is used to help computers and software recognize objects in our real world and conceptualize them in countless other uses, such as face recognition, cybersecurity, independently driven vehicles, and much more. Throughout the years, many algorithms were developed to help computers mimic how humans visually classify the world. For this research paper, our goal is to explore the potential advantages of EfficientNet, a modern CNN-based architecture, in practical image classification applications and test it on datasets to mimic real-world image classification cases in sectors such as medical, automotive, agriculture, and sports. With EfficientNet’s proven capabilities within image preprocessing techniques (Zubair et al.), which can boost an image’s quality so that model training will be at its peak performance, we can use those same techniques on other image datasets to effectively train our architecture to classify images. For our roadmap, we determined what CNN architecture would best suit our needs for better utilization of image classification and feature extraction, we shall pursue tests with image sets to test how well that architecture (EfficientNet) fares at classifying images based on various visual categories. Finally, we compare its accuracy against conventional architectures. Once we determine if EfficientNet can successfully implement image classification abilities on a set of images with higher accuracy balanced with lower computational efficiency, then it will be possible for other researchers to use our findings and possibly extend these results for other image classification problems.
How does the phenomenon of ‘U-Hauling’ among lesbians, characterized by rapid relationship progression, relate to psychological factors such as attachment styles, intimacy development, and relationship satisfaction, and why is it more common among women, considering aspects like safety, community, and solidarity?
Session 4: Business, Economics, and Hospitality Management
Time: 3:15 PM
Location: BSC, Andromeda A
Authors: Andrea Calderon
Faculty Mentor(s): Soeun Park
Abstract: The phenomenon of "U-Hauling," characterized by rapid progression in lesbian relationships, often including early cohabitation, has been observed within the lesbian community. This qualitative study aims to explore the psychological underpinnings of this phenomenon, focusing on factors such as attachment styles, intimacy development, and relationship satisfaction. Additionally, the study examines why U-Hauling appears more prevalent amongst women, particularly lesbians, by considering socio-cultural aspects like safety, community, and solidarity. Through in-depth interviews with lesbian women who have experienced same sex relationships, we seek to understand how these relationships develop and are perceived, and how psychological and socio-cultural factors intertwine to influence this pattern. Findings aim to provide a nuanced understanding of the dynamics at play, contributing to broader discussions on relationship formation and maintenance within marginalized communities.
Exploring the Heart Health Benefits of Avocados: A Comprehensive Analysis of Body Composition and Cholesterol Ratios
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Nghi Cao
Faculty Mentor(s): Bonny Burns-Whitmore
Abstract: This secondary study on avocado consumption re-analyzed data from the Avocado Study (IRB #11-136) which focused on body composition and blood cholesterol levels. This parallel design research was conducted over an 8-week period, to determine the effects of daily 5-ounce servings of avocados on specific health markers in participants. While the primary study found no noticeable changes in overall body fat percentage, cholesterol levels, or body water composition, this secondary analysis focused on more granular metrics. The results suggested that despite the lack of significant differences in broad measures, there were notable changes in the HDL/LDL ratio, indicating potential heart health benefits or cardioprotective effect of avocados. Moreover, individual variations in fat mass and muscle mass suggests that avocado consumption could lead to favorable shifts in body composition over a more extended period. These findings highlight the importance of looking beyond primary health markers to understand the full spectrum of dietary benefits that avocados may offer. Our research addresses the value of evaluating specific food interventions, such as avocados, to gain a deeper understanding of potential dietary health benefits.
Wool and Sheep Quality Impacts Through
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Madison Carranza
Faculty Mentor(s): Helen Trejo
Abstract: Wool is a product that is in demand all over the world with such countries as China, Australia, the United Kingdom, and the United States being the leading wool-producing and sheep-raising countries in the world. The production of wool relies on the quantity of wool a sheep can produce. The wool is shorn from the sheep and can be analyzed for quality, which can be affected by a sheep’s nutritional intake and reproductive status. Through a systematic literature review, this study focuses on assessing the effects of wool quality, a sheep’s diet, as well as the lambing and reproductive outcomes of sheep. Sheep nutrition allows for wool growth to occur through changes in mean fiber diameter, staple length, and strength through the appropriate amount of energy intake, protein intake, vitamins, and minerals. The lambing process, which can influence the fiber quality of wool, can also be altered by sheep producers by changing the period in which they breed through natural or hormonal manipulation allowing for better fiber quality. With this, sheep breeds such as Romeidale/CVM or Leicester Long wool which have better-quality wool can be sheared without stress or disruption during mid-pregnancy. Many articles have shown that without the proper laboring conditions, ewes may undergo stress that alters the fiber quality of wool. The literature describes the correct nutritional balance and laboring process for producers to breed and gain proper fiber quality from their sheep for clothing and manufacturing.
Proton Single Events Effects Testing for CubeSAT Mission Assurance and Failure Analysis
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Matthew Chang, Pragun Bethapudi, Max Gross
Faculty Mentor(s): Tarek Elsharhawy
Abstract: The PROVES (Pleiades Rapid Orbital Verification Experimental System) CubeSat is a low-cost, modular bus launched three times into Low Earth Orbit (LEO), which experienced deployment failure in its first launch and short lifetimes of 50 minutes and 9.5 hours in its subsequent launches. In response to these short lifetimes, radiation testing was performed to investigate if radiation was a contributing factor. Specifically, the PROVES Flight Controller Board underwent irradiation with 200 MeV protons to a total fluence of 1e10, revealing a non-destructive Single Event Effect (SEE) error rate of 0.183 per system day and a destructive SEE error rate of 0.003 per system day. SEE testing was conducted using high-energy protons, as they are particularly concerning in Polar LEO due to trapped protons from the Van Allen Belts and solar flares. High-energy protons were selected for their cost-effectiveness and industry standard in board-level testing. The 97.5-degree inclination of the satellites also crosses the South Atlantic Anomaly (SAA), where heavy ions pose a risk, though they were not the paper's focus. The PROVES program opted for board-level testing over traditional component-level radiation testing due to cost efficiency and as an initial step to understanding radiation effects on a system level, prioritizing a holistic view of the board’s performance under radiation stress over detailed component analysis. After testing, analysis was conducted and it was concluded that the flash memory was disrupting the connection. Through research and integration, it was found that an magnetoresistive RAM would be better suited for the missions.
Fiber Optic Sensor to Measure Strain and Temperature
Poster Session 1
Time: 9:30 AM
Location: BSC, Ursa Major
Authors: Shawn Chen, Halo Kwok, Nathan Kim, Leanordo Paulino
Faculty Mentor(s): Ertan Salik
Abstract: Fiber optic cables are best known for communication, but they can also be used for sensing. Due their low production cost, immunity to electromagnetic interference, and their potential for remote sensing, they have found applications in civil engineering, medical and defense industries. For example, a fiber sensor can be embedded in the concrete of a dam to remotely monitor its stress profile. We have investigated single-mode -multi-mode- single-mode (SMS) fiber optic sensors, which are sensitive to both mechanical stress and temperature. SMS fiber optic sensors are modal Mach-Zehnder interferometers. The propagation modes excited in the multimode fiber accumulate different phase based on the temperature of the medium and stress on the fiber, which leads to multiple spectral features that can be tracked for correlation with temperature and stress. Many fiber optic sensors are interrogated spectrally, including SMS sensors. Spectral features (peaks or dips) shift in response to physical parameters, such as temperature, stress, or refractive index of the environment. Extracting data for multiple parameters with single measurement has been shown possible. We explored methods to measure temperature and stress simultaneously using SMS sensors without the need of a separate temperature probe.