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Dental Cement Thickening Agents For Mudslide Prevention, Kristina Emiliya Babayev, Emily Elizabeth Johnson, Diana Evet Reihaneh Jun 2021

Dental Cement Thickening Agents For Mudslide Prevention, Kristina Emiliya Babayev, Emily Elizabeth Johnson, Diana Evet Reihaneh

Materials Engineering

The purpose of this project is to develop a non-toxic mud thickening agent for the application of decreasing mudslide intensity where performance is measured by flow rate, viscosity, and toxicity tests. We hypothesized that dental cements could be a potential candidate due to their adhesive, hydrophilic, and biocompatible properties. Zinc phosphate, glass ionomer, and polycarboxylate cement were among the dental cements tested. These tests were performed at low and high concentrations of 25 grams and 125 grams, respectively, mixed into soil to produce 3500 gram samples. The dental cements produced noticeable thickening effects in the mud, as the average viscosity …


Objective Design Standards For The City Of San Luis Obispo, Wilfrido Amaya, Ian Madrigal Jun 2021

Objective Design Standards For The City Of San Luis Obispo, Wilfrido Amaya, Ian Madrigal

City and Regional Planning

The state of California has been facing a housing crisis for several decades (Buhayar & Cannon, 2019). The state, along with other municipalities have been enacting laws to help mitigate the issue such as SB 35 (2017) and AB 2162 (2018). In recent years, cities and other municipalities have been using different methods of integrating missing middle housing into their planning practices. Missing middle housing is defined as being the “range of house-scale buildings with multiple units - compatible in scale and form with detached single-family homes” (missingmiddlehousing.com). There are different methods of implementing missing middle housing, however, in the …


An Analysis On The Future Of Parklets In San Luis Obispo, Reid Crandell, Aidan Lebow Jun 2021

An Analysis On The Future Of Parklets In San Luis Obispo, Reid Crandell, Aidan Lebow

City and Regional Planning

Currently, the parklet program in San Luis Obispo is a temporary program that utilizes encroachment permits to allow businesses to utilize sidewalks and a portion of the street for outdoor dining. With the emergence of parklets around the country due to COVID-19, commercial uses have been able to stay in business while adhering to the social distancing guidelines. Another added benefit has been the overall public enjoyment of utilizing parklets. Specifically in San Luis Obispo, the parklet program has made it easy for businesses to operate with added space. The question we asked in this project was whether or not …


San Joaquin Air Quality And Active Transportation Specific Plan, Samuel Robert Kuennen, William David Jarrett Jun 2021

San Joaquin Air Quality And Active Transportation Specific Plan, Samuel Robert Kuennen, William David Jarrett

City and Regional Planning

The focus of this project is to improve the overall air quality in San Joaquin. It will specifically focus on the PM2.5 pollutant, as this pollutant has the highest potential for change. Additionally, the PM2.5 pollutant poses major health risks to the community when there are high levels of it. The primary contributors of PM2.5 are automobiles, geography, and weather. This project will discuss methods that can reduce the reliance on single occupancy vehicles. These methods include the development of pedestrian and bicycle infrastructure as well as the improvement of the area’s regional transport services.


Effect Of Dissolved Oxygen On Corrosion Of Carbon And 13cr Steel In A Brine Environment, Kevin Peter Iu, Andy Zhou Jun 2021

Effect Of Dissolved Oxygen On Corrosion Of Carbon And 13cr Steel In A Brine Environment, Kevin Peter Iu, Andy Zhou

Materials Engineering

Oxygen corrosion is a major threat to seawater injection systems that are part of offshore drilling operations. Seawater is typically deoxygenated to an industry standard of(DO) by injection through a deaeration column followed by treatment with oxygen scavenging chemicals. Commercial simulation software like OLI Studio: Corrosion Analyzer predicts high corrosion rates when injection seawater contains high DO levels, justifying deoxygenation. However, a notable lack of experimental data exists concerning the effect of varying levels of dissolved oxygen on corrosion rate. The goal of this project is to measure the effect of three dissolved oxygen levels (0, 62, and 620 ppb) …


Phytoplankton Community Response To Changing Environmental Conditions Across Two Central California Sites, Nicholas Soares Jun 2021

Phytoplankton Community Response To Changing Environmental Conditions Across Two Central California Sites, Nicholas Soares

Biological Sciences

Understanding the role that changing environmental conditions play in altering phytoplankton abundance and community composition, and in turn ecosystem structure and function, will be increasingly important for the sustainable use and management of ocean resources in a changing climate. Characterizing change in nearshore ecosystems requires long-term studies with a broad spatial extent, with most studies sacrificing spatial extent for temporal duration. However, phytoplankton and ecosystem response can vary substantially over small spatial scales due to local oceanographic forcing and anthropogenic influence, making the application of long-term data from one site to another in the same geographic vicinity potentially challenging. In …


Uv Polymerization Of A Zwitterionic Antifouling Membrane Coating, Amanda Jia-Hwa Tsai, Vincent Matthew Guarino Jun 2021

Uv Polymerization Of A Zwitterionic Antifouling Membrane Coating, Amanda Jia-Hwa Tsai, Vincent Matthew Guarino

Materials Engineering

Membrane filtration is used in a wide array of industries to separate components in a mixture. Filtration membranes suffer from the external deposition of pollutants and microorganisms, a phenomenon known as fouling. Fouling reduces the lifetime of a membrane and therefore increases production costs. The goal of this project was to modify the surface of a hydrophobic commercial membrane with a charged coating to induce antifouling properties. A zwitterionic monomer, sulfobetaine methacrylate (SBMA), was used for its steric hindrance and hydration shell formation mechanisms, which result in superior non-specific antifouling performance. When polymerizing the coating onto the surface of the …


Effects Of Uv Exposure On The Thermo-Mechanical Properties Of Cactus Based Biopolymers, Madison Glozer, Megan Bolling, Addison Wolfson Jun 2021

Effects Of Uv Exposure On The Thermo-Mechanical Properties Of Cactus Based Biopolymers, Madison Glozer, Megan Bolling, Addison Wolfson

Materials Engineering

The viability of renewable biopolymers as sustainable alternatives to synthetic plastics is promising, however ultra-violet (UV) radiation can lead to premature degradation and reduction in the material’s performance. Biopolymers comprised of nopal cactus juice, animal protein, natural wax, and glycerin in differing percentages were studied to obtain thermo-mechanical data in relation to UV exposure. To quantify degradation, dynamic mechanical analysis, thermogravimetric analysis, differential scanning calorimetry, infrared spectroscopy, goniometry and gravimetric measurements were performed. Each formulation experienced mass loss as a result of UV exposure, which could be attributed to water evaporation. The thermogravimetric analysis indicated a reduction in the second …


The Effects Of Glass Fiber Fillers On Epoxy Resin Performance, Ashton Robert Reinhold, Manuel Jose Aguirre Ii Jun 2021

The Effects Of Glass Fiber Fillers On Epoxy Resin Performance, Ashton Robert Reinhold, Manuel Jose Aguirre Ii

Materials Engineering

Premature failure of filtration members in biochemical processing is a costly issue for manufacturers. This research aims to determine whether or not the premature failure due to thermal fatigue in medical filtration devices can be mitigated by glass fiber addition. The study was conducted to identify the effects of e-glass fiber filler content in an epoxy matrix on the mechanical and thermal properties of the epoxy system. The epoxy was evaluated over a filler content of 0-50wt% in level increments of 12.5wt% and temperatures ranging from ambient to 160°C in increments of 15°C. Cylindrical and tensile bar specimens were prepared …


Solvent Analysis Of Phenolic Resin Glass Fiber Reinforced Prepreg During Out-Time, Sixin Zhai, Crystal Ipong Jun 2021

Solvent Analysis Of Phenolic Resin Glass Fiber Reinforced Prepreg During Out-Time, Sixin Zhai, Crystal Ipong

Materials Engineering

Phenolic resin glass fiber reinforced prepregs are highly suitable for airplane interior components due to their high fire resistance, high temperature performance, and low-density characteristics. Safran Cabin seeks to improve their storage of the phenolic resin prepreg during their manufacturing process. The issues the company faces are the occasional delamination of prepreg laminas or the loss of tackiness rendering the lamina unfit for use. The area of investigation was determining the weight loss of volatiles during out-time. The term “out-time” consists of the time the prepreg experiences in transit, on the shop floor, and in short-term temperature-controlled storage. Simulated storage …


Reducing The Fouling Of Microfiltration Membranes Through Uv-Initiated Surface Modifications Using Poly (Ethylene Glycol) Based Monomers, Christopher Lo, Matthew Truong Jun 2021

Reducing The Fouling Of Microfiltration Membranes Through Uv-Initiated Surface Modifications Using Poly (Ethylene Glycol) Based Monomers, Christopher Lo, Matthew Truong

Materials Engineering

Meissner Filtration Product Inc. designs and manufactures membranes for food and beverage, microelectronics, ultrapure chemicals, and pharmaceutical industries. Membrane filters utilized in these industries have lifetimes greatly limited due to membrane fouling. Increasing membrane lifetime will reduce downtime, waste, and cost of operation. The proposed project is aimed to develop a methodology for synthesizing a fouling-resistant polymer coating layer on hydrophobic membrane surfaces for reducing membrane fouling and increasing membrane filterability (membrane lifetime) that are critical for effective membrane operations in the pharmaceutical industry. In this study, commercial membranes were coated with a solution containing a monomer, crosslinker, and photoinitiator …


Development Of A Marine Biodegradable Target Balloon, Blake Samuel Robinson, Arash Sam Akhavi, David Leonardo Albarran-Martinez Jun 2021

Development Of A Marine Biodegradable Target Balloon, Blake Samuel Robinson, Arash Sam Akhavi, David Leonardo Albarran-Martinez

Materials Engineering

The US Navy utilizes PVC target balloons, known as Killer Tomatoes, that are inflated onboard a naval vessel then deployed into the ocean to calibrate a variety of weaponry. The Navy has requested the investigation of biodegradable polymers to replace the PVC in attempts to reduce ocean waste that is generated from the leftover PVC material. After communicating with American Pacific Plastic Fabricators (APPF), the current manufacturer of the Killer Tomatoes, we gained an understanding of the manufacturing process and the material requirements that would allow a new material to be integrated into their current process. Two proprietary, trial polymers …


Strengthening Of 7175 Aluminum Alloy Through Multi-Step Aging Process, Colin E. Masterson, Ryland W. Jolliffe Jun 2021

Strengthening Of 7175 Aluminum Alloy Through Multi-Step Aging Process, Colin E. Masterson, Ryland W. Jolliffe

Materials Engineering

7175 is a heat-treatable aluminum alloy commonly used in aerospace forgings. This alloy is aged with a multi-step heat treatment. This treatment must balance strength with stress corrosion cracking resistance through a degree of overaging. The team was tasked by Weber Metals to increase the strength of this treatment without sacrificing stress corrosion cracking resistance. Both two-step and retrogression and reaging treatments were tested in experiments to find a heat treatment that could increase the yield and tensile strength by 1-2 ksi while maintaining a minimum electrochemical conductivity equivalence of 38% relative to copper. Two-step aging is the more conventional …


Designing A Replication Study In Kinesiology: Lessons From The Field, Ruben A. Montoya Vega, Regina F. Hockert, Emma L. Cutner, Jafra D. Thomas Jun 2021

Designing A Replication Study In Kinesiology: Lessons From The Field, Ruben A. Montoya Vega, Regina F. Hockert, Emma L. Cutner, Jafra D. Thomas

Kinesiology and Public Health

The submitted presentation material summarizes a project presented at the 2021 Cal Poly Virtual BEACoN Symposium. The title of the project which the presentation is based is, “Towards Equitable Communication: Explorations to Guide Knowledge Translation in Kinesiology.” The uploaded file document presents the presentation abstract, student testimony, as well as suggested citations for individual aspects of the presentation material. Please follow the social media profiles of the faculty mentor to the project, Dr. Thomas, for timely project updates. You may find related work from this lab group published to Cal Poly Digital Commons under the Kinesiology and Public Health section …


Inventory Locating With Quuppa: The Design And Development Of A Real-Time Process Monitoring Web Application Solution, Dylan C. Moreland, Trevor J. Howell, John W. Takiff, Patrick S. Dillon, Theo E. Fritz, William K. Mcintyre Jun 2021

Inventory Locating With Quuppa: The Design And Development Of A Real-Time Process Monitoring Web Application Solution, Dylan C. Moreland, Trevor J. Howell, John W. Takiff, Patrick S. Dillon, Theo E. Fritz, William K. Mcintyre

Industrial and Manufacturing Engineering

Viasat, Inc. requires precise inventory tracking at their production facility in San Diego, CA. Viasat has installed the Quuppa indoor real-time locating system (RTLS), which it uses to track the real-time position of high-value work-in-process items. In its current state, the system only displays in-the-moment location information, with no available functionality for storing historical data for review, analysis, or visualization. In addition, the data displayed is noisy and prone to significant random error. This paper provides an overview of RTLS methods and technologies, assesses alternative solutions to Viasat’s issue, demonstrates our RTLS integrated web app solution, analyzes its impact, and …


Training Novices To Evaluate The Quality Of Physical Activity Promotion Material: Results Of A Pilot Study, Ethan N. Tse, Savannah A. Longoria, Cameron N. Christopher, Jafra D. Thomas Jun 2021

Training Novices To Evaluate The Quality Of Physical Activity Promotion Material: Results Of A Pilot Study, Ethan N. Tse, Savannah A. Longoria, Cameron N. Christopher, Jafra D. Thomas

Kinesiology and Public Health

The credibility and usability of lay physical activity promotion material are a persistent problem (Thomas & Cardinal, 2020, TJACM). These quality issues deter the material in promoting health literacy, a major predictor of prevention-oriented health behaviors (e.g., regular exercise, U.S. National Action Plan to Improve Health Literacy). Few studies, however, have evaluated the quality of lay material over time (Thomas et al., 2018, Quest). PURPOSE: In order to conduct a repeated-measures study of the quality of physical activity promotion web articles for lay adults, one experienced researcher (JDT) trained undergraduates on how to use the Suitability …


Pressure Driven Desalination Membranes: Lyotropic Liquid Crystals Containing Single Walled Carbon, Matteo A. Del Giudice, Samantha Castillo Merigold Jun 2021

Pressure Driven Desalination Membranes: Lyotropic Liquid Crystals Containing Single Walled Carbon, Matteo A. Del Giudice, Samantha Castillo Merigold

Materials Engineering

This project presents a potential alternative desalination technique that utilizes the ion rejection properties of single walled carbon nanotubes dispersed in a lyotropic liquid crystal (LLC) matrix. Previous research has pointed to the polymerizable surfactant methacryloxy ethyl hexadecyl dimethyl ammonium bromide (C16MA) having capabilities of filtering molecular components smaller than a nanometer, when oriented in cylindrical micelles. SWCNTs were dispersed in deionized water by probe sonication and addition of surfactant cetyltrimethylammonium bromide (CTAB) due to SWCNTs’ hydrophobic properties. Membranes were produced containing 55wt% C16MA, 37wt% DI water, 0.1wt% with respect to the monomer (WRM) SWCNTs, 1.9 wt% WRM 2,2-dimethoxy-2-phenylacetophenone (photointiator), …


Eventhub Application: Sharing Medium For Popup Stores / Events, Coby Hong Jun 2021

Eventhub Application: Sharing Medium For Popup Stores / Events, Coby Hong

Liberal Arts and Engineering Studies

Creation of Full Stack web application using technologies MongoDB backend, REST API services, and React.JS front end. Web application centered around providing a news feed for local businesses and popup events to post / share their listings on. Users can log on with their Google account to traverse the website.


The Free Arena Of Literature: Science Fiction Films’ Critiques Of Capitalism In The United States, John (Jack) Michael Bilello Jun 2021

The Free Arena Of Literature: Science Fiction Films’ Critiques Of Capitalism In The United States, John (Jack) Michael Bilello

History

Capitalism is an inherently flawed system. The ideologies of Karl Marx have remained relevant for their critiques of the system, yet socially, his ideas are not accepted in the capitalist United States. Capitalism, as the dominant economic system of western civilization, has become synonymous with patriotism in the U.S. This has proved incredibly harmful to criticisms of capitalism, as they are met with questions of allegiance and patriotism rather than a careful reconsideration of ideals. Through science fiction films, these ideas that are usually difficult to express become much more palatable to a capitalist society. But to fully appreciate the …


Zoologijos Sodas, Arjun Elvis Urbonas, Dara Lin, Jesus Ramirez Zambrano, Samantha Ung, Robert Milkovich, Jakob Olsen, Azuolas Skucas Jun 2021

Zoologijos Sodas, Arjun Elvis Urbonas, Dara Lin, Jesus Ramirez Zambrano, Samantha Ung, Robert Milkovich, Jakob Olsen, Azuolas Skucas

Architecture

50'x50' glass house in Palm Springs.


The Leed Decision-Making Processes For Northern California Commercial Construction, Shannon Marie Coyle Jun 2021

The Leed Decision-Making Processes For Northern California Commercial Construction, Shannon Marie Coyle

Construction Management

The purpose of this project was to establish a common decision-making process behind selections on the Leadership in Energy and Environmental Design (LEED) scorecard. This report describes the similar and dissimilar motives and processes that lead construction project teams to choose the LEED credits to be implemented. By interviewing experienced project executives, architects, project managers, and LEED accredited professionals at industry-leading companies in the Bay Area, a summarization of the motives behind credit selection have been reported and commonalities and differences in the process have been noted. Through these interviews, time, cost, efficiency, and sensibility have all been considered prioritizing …


A Survey Of Computer Graphics Facial Animation Methods: Comparing Traditional Approaches To Machine Learning Methods, Joseph A. Johnson Jun 2021

A Survey Of Computer Graphics Facial Animation Methods: Comparing Traditional Approaches To Machine Learning Methods, Joseph A. Johnson

Master's Theses

Human communications rely on facial expression to denote mood, sentiment, and intent. Realistic facial animation of computer graphic models of human faces can be difficult to achieve as a result of the many details that must be approximated in generating believable facial expressions. Many theoretical approaches have been researched and implemented to create more and more accurate animations that can effectively portray human emotions. Even though many of these approaches are able to generate realistic looking expressions, they typically require a lot of artistic intervention to achieve a believable result. To reduce the intervention needed to create realistic facial animation, …


Development Plan For A Multi-Family Residential Building In San Luis Obispo, Shelby L. Wineman Jun 2021

Development Plan For A Multi-Family Residential Building In San Luis Obispo, Shelby L. Wineman

Construction Management

Real estate development is often regarded as a daunting effort that requires a large sum of time and money. However, a greater supply of multi-family housing will protect cities from this homelessness, lack of availability to education, along with poor mental and physical health conditions. This paper addresses methods in which any new developer can efficiently approach developing small-scale, multi-family housing in San Luis Obispo and see overall profitability. The initial research set forth provides interested parties with a generalized basis of the analysis of value, design considerations, and methods of savings involved in development. The research is then directly …


The Benefits And Challenges Of Automation In The Modular Construction Industry, Allen Le Jun 2021

The Benefits And Challenges Of Automation In The Modular Construction Industry, Allen Le

Construction Management

Modular construction combined with automation technology such as robotics presents benefits and challenges associated with it. Modular construction takes on the traditional building methods and has streamlined the production of modules making it safer, efficient, and productive. Along with innovation and cutting-edge technology such as automation, it offers an alternative building method to the modular construction industry that enhances productivity, worker safety, and efficiency. This research presents an investigation on factors that may be benefited from the adoption of automation but also addresses the challenges in modular construction. Qualitative interviews with designers and consultants in the modular industry were conducted …


Addressing Mep Labor Shortages And Methods To Attract Young Adults Into The Trades, Hernan Garcia Alonso Jun 2021

Addressing Mep Labor Shortages And Methods To Attract Young Adults Into The Trades, Hernan Garcia Alonso

Construction Management

The mechanical, electrical, and plumbing (MEP) fields require a large skilled workforce. In recent years, companies have experienced shortages of skilled employees. These shortages arise from many causes, a root cause identified is the decrease of young adults pursuing MEP careers. This project focuses on the reasons young adults are reluctant to enter these careers, such as misconceptions or lack of knowledge on MEP careers. A pool of twelve MEP companies was surveyed regarding their experiences with the causes of labor shortages and the short-term mitigation methods used. They were also asked about their perspective on the lack of young …


San Luis Obispo Botanical Garden Benches, Brandon Keefer Jun 2021

San Luis Obispo Botanical Garden Benches, Brandon Keefer

Construction Management

The San Luis Obispo Botanical Garden is an outdoor area where people often gather for events such as weddings or just simply for a casual stroll through nice scenery. There were 6 students, including myself, who teamed up to complete this project where we divided into two sub-teams, one design team and one construction team. Since I was assigned to be the team captain but was placed on the construction team, I will touch a little bit on the design process since I was involved with overseeing this aspect but focus mainly on the actual construction of the benches. This …


Sustainability In Residential Construction: Homeowner Input On Sustainable Features, Samuel Bina Jun 2021

Sustainability In Residential Construction: Homeowner Input On Sustainable Features, Samuel Bina

Construction Management

Recently, sustainability has become extremely popular in construction, and in particular residential construction. Regulations for sustainable construction have increased over the years and have begun to increase in popularity amongst homeowners. This report dives further into the importance of sustainability in residential construction, in particular working with homeowners to identify the best methods of increasing sustainability in their homes. Currently, little information has been published regarding homeowners’ perspectives on sustainability and the types of features they would be likely to incorporate into their homes that are not mandated by codes. This report serves to provide information to both the construction …


Analyzing The Causes Of Labor Shortage In The Commercial Carpentry Trades In The San Francisco Bay Area, Jack Crayne Jun 2021

Analyzing The Causes Of Labor Shortage In The Commercial Carpentry Trades In The San Francisco Bay Area, Jack Crayne

Construction Management

Skilled labor is vital to the success of any construction project, and no contractor would be able to operate without the skilled laborers that they employ. The construction industry has been subject to a shortage of skilled labor for the last two decades for many reasons, including the poor image of construction workers among the public, inadequate training measures, and an aging workforce. Reviewing the literature on the matter shows that the leading cause of shortage is low pay and increasing age of the workforce overall, while the demand for labor grows at a faster rate than the supply of …


Terra Nova High School Outdoor Development, Amanda J. Kaesler Jun 2021

Terra Nova High School Outdoor Development, Amanda J. Kaesler

Construction Management

This paper describes the preconstruction planning of an outdoor space at Terra Nova High School in Pacifica, Ca. The project involved the production of three separate proposals at a high, moderate, and low-cost point. Each proposal included a conceptual design, takeoff, estimate, and model renderings. To create the conceptual designs and estimates, several programs and outside sources were utilized, including Revit, Bluebeam, RS Means, and Precision Estimating Services. The end designs include varying combinations of outdoor picnic seating, site boulders, raised planter beds, and a concrete stage. The resulting proposals outline the expected project costs for each design as well …


Conceptual Proposal For New Student Housing In San Luis Obispo, Jack F. Tunney Jun 2021

Conceptual Proposal For New Student Housing In San Luis Obispo, Jack F. Tunney

Construction Management

This real property development project walked through the steps and procedures that are typical for real property development. The project focused on a conceptual multi-unit student housing project located near Cal Polys campus. The rental market in San Luis Obispo is very competitive and through market and financial analysis, it was determined that there is a demand for projects like the one proposed. The project walked through the processes associated with the financial analysis of a potential construction project in San Luis Obispo. The project identifies a site, creates a budget both for construction, development, and design costs, then analyzes …