Digital Commons Network^™

Las Comunidades Asiáticas En Latinoamérica, Nina Lerrick

World Languages and Cultures

This project undertakes the examination of several prominent Asian communities in Latin American countries such as Mexico, Argentina, Peru, Brazil, and others in understanding the diverse intersection that is the Asian-Latino culture and identity. Within the United States, there is a growing community of Asian-Latinos that share both the cultural identities of the Hispanic/Latinx community (cultural environment) and the Asian communities (familial and cultural upbringing). Likewise, in U.S. cities such as New York City and Los Angeles, there have been notable Asian-Latino restaurants that offer Asian cuisine and Latin cuisine, as well as a rise of new Asian-Latin infused cuisines …

Third Trimester Plasma Metabolites Associated With Gestational Diabetes: An Ancillary Analysis Of The Healthy Beginnings Trial, Rodrigo D. Rosario

Master's Theses

Introduction: Gestational Diabetes Mellitus (GDM) results in complications affecting both mother and child. The implementation of metabolomics to assess metabolite alterations is needed to better understand its etiology. Prior research by our lab in first trimester samples of GDM patients indicated altered fatty acid utilization and purine degradation products.

Objective: Metabolomics analysis was conducted on third trimester (28 -35 weeks) plasma samples to observe differences associated with GDM.

Methods: Fifty samples taken from the Healthy Beginnings trial and their corresponding data were included in the study. Plasma samples were analyzed using UPLC-MS with metabolomic assays for primary metabolomics, aminomics, and …

Extinction Coefficient Measurement Comparison Of Tungsten Powder Clouds, Spencer P. Grenley

Master's Theses

All materials in dust form pose an increased risk of accidental deflagration, or explosion. For workplace safety, this risk of deflagration for a solid particulate sample is characterized through specialized dust explosibility testing systems. These systems disperse a cloud of powder inside a spherical chamber via a pressure gradient, where a timed ignition occurs. The accuracy of measurements taken during this process are predicated upon the assumption that the cloud of powder is uniformly distributed during the ignition period. Metal additive manufacturing (AM) is a rapidly expanding technology that, in some cases, involves heavy metal powders that do not disperse …

Optimization Of Interplanetary Transfer Trajectories Using The Invariant Manifolds Of Halo Orbits, Ryan Yedinak

Master's Theses

Traditionally, two-body dynamics have been used to design orbital trajectories for interplanetary missions using a series of Lambert’s transfers and gravity assists. Although these are reliable methods, they have extremely high fuel requirements, especially for missions to outer planets. From an orbital mechanics perspective, three ways of reducing fuel requirements for these types of missions are utilizing low energy transfer trajectories, applying low thrust engine parameters, and implementing orbit optimization techniques.

The goal of this thesis is to combine low energy transfers created from the dynamics of the Circular Restricted Three-Body Problem (CRTBP) with low-thrust orbit optimization techniques to develop …

Thermal Vacuum Chamber Modification, Testing, And Analysis, Jared C. Lehmann

Master's Theses

This work discusses the modification and analysis of the Blue Thermal Vacuum Chamber (TVAC) located at the Space Environments Lab at California Polytechnic State University, San Luis Obispo. The modified design has a cylindrical test section and can accommodate 6U Cubesats or larger for educational or research purposes. The sizing process for the modified shroud cooling system and modular heating plates is discussed. The modified cooling system uses existing nitrogen plumbing into the chamber and control systems with a new copper shroud. The modified heating system uses modular heater plates, which utilize the existing three heater strips. The modified system …

Assessing The Water Quality Of Three Bar-Built Estuaries In The Central Coast Of California, Micaelina Sarmiento Martinez

Master of Science in Environmental Sciences and Management Projects

Estuaries are coastal confluences with innumerable ecosystem services. With the continuous change in land use including the increasing number of people moving to live in coastal areas and on-going agricultural operations, these coastal systems are being adversely impacted. Climate change is also negatively affecting estuaries. Subsequently, this research study assessed the water quality, monthly, at three different locations of three bar-built estuaries in the Central Coast of California. Water quality was evaluated by the change in chlorophyll-a, nitrogen, phosphorus, pH, temperature, dissolved oxygen, and specific conductivity over the course of 19 months. The eutrophication potential and the role of open …

Equilibrium Without Statics: The Modern Muller Breslau Method, Claire Tyler Ballard

Architectural Engineering

This senior project report discusses the applications of the Modern Muller-Breslau Method. To complete this project, the student learned this method and created unique example problems. The report explores these unique example problems with explanations of the processes to solve each problem. The examples shown consist of determinant beams, frames, trusses, and 3-hinged arches. In addition, a more complex structural analysis topic, plastic analysis, will be explained. Lastly, the report concludes with an insight into a student’s experience with the method.

Solveig's Art Website, Isabella Underwood

Graphic Communication

This project is a website showcasing my late friend’s artwork. The goal of this website is to raise mental health awareness, and also as a means of immortalizing a part of my friend Solveig’s artwork for loved ones to look back on.. This website will be reminiscent of Solveig’s style and all of the things she loved.

Testing And Characterization Of Polymer Laminates For Swelling, Absorption, And Cracking, Matthew W. Carlson

Master's Theses

A polymer laminate consisting of multiple layers of proprietary blends of Ethylene Vinyl Alcohol (EVOH) and Thermoplastic Polyurethane (TPU) and used in the construction of air bladders was evaluated for hygroscopic effects driving delamination and multiple layer fragmentation. These air bladders are observed to suffer delamination during a manufacturing process that involves immersion in an alcohol/water solution. A plausible underlying mechanism is differential swelling and absorption by the laminate constituents. Both room and elevated temperature swelling tests were carried out to find the absorption and swelling coefficients of the constituents. These coefficients served as input into a Finite Element Analysis …

An Examination Of The Fuzzy Inference System On Probabilistic Roadmap Path Planning, Brandon Replogle

Master's Theses

In recent years, multi-robot systems have been widely used in many applications such as warehouse inventory tracking and automatic search and rescue operations. Probability roadmap (PRM) is a typical path planning algorithm that can determine an optimal trajectory once the robot start and goal positions are specified. However, when the number of robots in the system increases, it converges slowly and may even fail to find the solution.

In this thesis, a fuzzy inference system is proposed and combined with the probability roadmap algorithm for robot path planning. Computer simulation results in five different environments show this approach is very …

Potential Impact Of Contour Bunds On Diclofenac Removal For Stormwater Control In Rangeland Applications, Braden Alan Whitehead

Master's Theses

Diclofenac (DCF) and other emerging contaminants have been found in environments worldwide. These contaminants may enter the environment due to the application of treated wastewater, biosolids and direct excrement related to veterinary application. Leakage from the soils toward the groundwater is largely controlled by sorption and microbial degradation. Most studies on the environmental fate of DCF have focused on degradation during wastewater treatment processes. However, little is known about their behavior in soil. In this study, the combined effect of adsorption and degradation of diclofenac has been investigated in four (4) 24 ft³ agricultural soil-filled beds designed to mimic …

A Study Of Non-Computing Majors' Growth Mindset, Self-Efficacy And Perceived Cs Relevance In Cs1, Jae Hyuk Yoo

Master's Theses

As the demand for programming skills in today’s job market is rapidly increasing for disciplines outside of computing, CS courses have experienced spikes in enrollment for non-majors. Students in disciplines including art, design and biological sciences are now often required to take introductory CS courses. Previous research has shown the role of growth mindset, self-efficacy and relevance in student success within CS but such metrics are largely unknown for non-majors. In this thesis, we surveyed non-majors in CS1 at Cal Poly, San Luis Obispo during the early and late weeks of the quarter to gain insights on their growth mindset, …

Subnational Map Of Poverty Generated From Remote-Sensing Data In Africa: Using Machine Learning Models And Advanced Regression Methods For Poverty Estimation, Lionel N. Hanke

Master's Theses

According to the 2020 poverty estimates from the World Bank, it is estimated that 9.1% - 9.4% of the global population lived on less than $1.90 per day. It is estimated that the Covid-19 pandemic further aggravated the issue by pushing more than 1% of the global population below the international poverty line of $1.90 per day (WorldBank, 2020). To provide help and formulate effective measures, poverty needs to be located as exact as possible. For this purpose, it was investigated whether regression methods with aggregated remote-sensing data could be used to estimate poverty in Africa. Therefore, five distinct regression …

Short-Term Wind Speed Time Series Forecasting Using Artificial Neural Networks, Daniel Rezaee Garacani

Master's Theses

Renewable energies such as wind power have become integral parts of modern power networks. Short-term wind speed prediction is crucial for smart grids, as it can help balance the demand and supply, as well as set the energy price in the market.

In this thesis, we simulate and compare various neural network models for short-term wind speed prediction, including multi-layer feedforward neural networks, convolutional neural networks, long-short term memory networks, and hybrid models such as CNN- LSTM and ConvLSTM. Computer simulation results show that all artificial neural networks are able to provide satisfactory prediction. Among them, the multi-layer feedforward neural …

As-925-21 Resolution On Fall 2021 Repopulation Concerns, Academic Senate Executive Committee

Academic Senate Resolutions

Based on the COVID-19 pandemic situation in Summer 2021, the resolution articulates policies, practices and procedures that would facilitate the faculty, staff, students, and administration working together in partnership to support each other in creating a safe learning, teaching, and working environment for the campus community.

About The Creators, Eden Railsback, Juan Vergara

Underground Anthology

No abstract provided.

Leche Flan, Malia Weingarten

Underground Anthology

No abstract provided.

About The Editors, Eden Railsback, Juan Vergara

Underground Anthology

No abstract provided.

About The Authors, Eden Railsback, Juan Vergara

Underground Anthology

No abstract provided.

La Sobremesa, Shania Raylin Hernandez

Underground Anthology

No abstract provided.

On-Ramp, M. Alexander, Pamela Arciniega

Underground Anthology

No abstract provided.

Our Friend Maya Angelou, Ibrahim Ua

Underground Anthology

No abstract provided.

The Truth About Stories, Elizabeth Chan-Diaz

Underground Anthology

No abstract provided.

Penultimate, Ibrahim Ua

Underground Anthology

No abstract provided.

Fated To The Seas, Alyiah Marie Gonzales

Underground Anthology

No abstract provided.

Our Message From Death Row, Ibrahim Ua

Underground Anthology

No abstract provided.

Coqui, Alessandro Zanghi

Underground Anthology

I'm writing about this night I had an asthma attack back home over winter break. I awoke in the middle of the night unable to breathe so I went to my bathroom to sit in the shower and breathe in the humid air to help open up my lungs. While I was sitting there the humidity and water reminded me of Puerto Rico (Borinquen in Taino) and my memories of the island and thoughts of my ancestral connection to the land gave me comfort. The idea that I could travel there just by simply turning on the faucet and sitting …

Brown Eyes, Ibrahim Ua

Underground Anthology

No abstract provided.

Contributors, Eden Railsback, Juan Vergara, Shanae Aurora Martinez

Underground Anthology

No abstract provided.

Underground Anthology Title, Eden Railsback, Juan Vergara, Shanae Aurora Martinez

Underground Anthology

No abstract provided.