Digital Commons Network^™

Finite-Difference Modeling Of The Batch Process Smoldering Combustion Of Wastewater, Laura H. Kawashiri

Master's Theses

A MATLAB model was developed for the smoldering combustion of wastewater in the context of a decentralized residential wastewater treatment appliance. Data from a batch process sewage smoldering experiment was simulated using implicit finite-difference approximations, assuming one-dimensional transient conductive heat transfer. The time-dependent temperature profiles within the column represented the main parameters of interest and were used to verify recoverable heat energy estimations. Given that the modeling method used for this thesis represents a unique approach, the assumptions and limitations of this model are thoroughly described in the context of reproducing results for other smoldering setups. A lack of convergence …

Acceleration Of Jaccard's Index Algorithm For Training To Tag Damage On Post-Earthquake Images, Kyle John Mulligan

Master's Theses

There are currently different efforts to use Supervised Neural Networks (NN) to automatically label damages on images of above ground infrastructure (buildings made of concrete) taken after an earthquake. The goal of the supervised NN is to classify raw input data according to the patterns learned from an input training set. This input training data set is usually supplied by experts in the field, and in the case of this project, structural engineers carefully and mostly manually label these images for different types of damage. The level of expertise of the professionals labeling the training set varies widely, and some …

Design, Simulation, And Hardware Construction Of A 600 W Solid State Dc Circuit Breaker For The Dc House Project, Calin Matthew Bukur

Master's Theses

DC circuit breakers must be able to arrest overcurrent conditions to prevent electrical equipment and wiring from causing building fires or other hazards from occurring. With more DC renewable sourced structures such as Cal Poly’s DC House, an inexpensive and reliable protection system is necessary to ensure safe energy transfer to the loads. One method of protecting a system is preventing excessive amounts of current to be drawn by the load when the surrounding components are rated at a lesser value. DC circuit breakers act as a monitoring system and barely presents an effect on the voltage or power. With …

Logging And Analysis Of Internet Of Things (Iot) Device Network Traffic And Power Consumption, Ryan Joseph Frawley

Master's Theses

An increasing number of devices, from coffee makers to electric kettles, are becoming connected to the Internet. These are all a part of the Internet of Things, or IoT. Each device generates unique network traffic and power consumption patterns. Until now, there has not been a comprehensive set of data that captures these traffic and power patterns. This thesis documents how we collected 10 to 15 weeks of network traffic and power consumption data from 15 different IoT devices and provides an analysis of a subset of 6 devices. Devices including an Amazon Echo Dot, Google Home Mini, and Google …

Effect Of Aquaponic Vs. Hydroponic Nutrient Solution, Led Light Intensity And Photoperiod On Indoor Plant Growth Of Butterhead, Romaine And Kale (L. Sativa, B. Oleracea), Sean M. Foster

Master's Theses

Vertical farming has been proposed as a solution for providing food security for an increasing, urbanized human population. Light-emitting diode (LED) technology has become increasingly affordable and efficient, making it an ideal choice as artificial lighting for indoor farms. Still largely undiscovered parameters are the optimal plant varieties and types of production systems for plant growth, profit, and human nutrition. Aquaponics may be able to provide sustainable animal protein for vertical farms, increasing their ability to provide more substantial nutrition to consumers. This research aimed to better understand vertical farming as a food production system, and to determine if aquaponics …

Evaluating The Potential For Social Change Through Fashion Blogging, Nina Anastasia Doering

Journalism

As fashion blogs grow in popularity and number, much research has been done to evaluate their potential for commercial gain. Little research, however, has been done on fashion blogging’s potential as a vehicle for political and social advocacy. This paper seeks to address this gap by examining two fashion blogs, StyleLikeU and Chinatown Pretty, that combine style blogging with advocacy, in order to understand how they communicate with audiences to pursue their advocacy-oriented missions. In a world where fashion blogging is only growing in popularity, but is increasingly tied to commercial goals, this study is more relevant than ever. This …

Collision Avoidance Smartphone, Matt Columbres, Aaron Parisi, Joey Schnecker, Luis Wong

Electrical Engineering

There are many instances in day-to-day life where people cannot or would rather not pay full attention to their surroundings. Walking while preoccupied with a smartphone or walking while blind are excellent examples where technology could be used to make the task of avoiding 2collisions reactive, instead of proactive. A device which monitors a user’s surroundings and notifies the user when a potential collision is detected (and, additionally, notifying them as to where the obstacle is with respect to them) could be used to make walking distracted less of a hazard for the user and those around the user and …

Modular Injection System And Sampling Template (M.I.S.S.T) Design Report, Froylan M. Aguirre

Computer Engineering

Digital systems are ubiquitous throughout modern life and their applications continue to grow. Thus system designers engineer and test modular systems to mitigate error rates. Smaller systems and their increasing importance in many applications demand the utmost reliability. Fault injection is the most common method used by researchers and engineers to test system reliability. However, most hardware fault injection implementations are ad hoc and only used to test a specific system or for specific tests. There is also software-implemented fault injection that adds overhead in the benchmark source code. The aim of this project is to develop a general use, …

Versatile Usb Powered Turntable, Kyle P. Mccarry

Electrical Engineering

People enjoy vinyl music’s warm sound, user participation, and nostalgic feel, but the large physical size and seemingly immobile system requirements prevent vinyl turntables branching into digital music dominated realms. USB ports power many important everyday devices. A USB powered turntable increases record player adaptability, versatility, and portability thus expanding usable turntable scenarios. The manual turntable plays seven to twelve-inch vinyl at 33 1/3 or 45 rpm. It includes a stylus, magnetic phono cartridge, tonearm, 45-rpm adapter, motor, audio output, and several setting switches and knob for easy use.

Design And Test Of Wide Input And Output Constant Current Led Driver, Kean Wee

Electrical Engineering

This senior project aims to provide design and test the performance of a DC-DC constant current LED driver for use in a larger DC smart building infrastructure. In this instance, a SEPIC topology is chosen to provide high efficiency output current at output voltages that can be above or below the input voltage. This is challenging since the same design must operate at similar efficiency for vastly different environmental conditions. As a part of a larger system, the design must be able to perform the given task consistently regardless of changes to the source and load power.

The design uses …

Forumsphere.Com, Nicholas Scott Gatehouse, Sam Robert Rastovich

Computer Science and Software Engineering

We live in the Age of Information & Technology where social media has become an integral part of our society. Social media platforms such as Facebook help bring people and ideas together in one place. However, currently there is no centralized hub on the internet that is geared towards individual college campuses. Our goal is to create an environment that promotes structured and productive discussion between students, alumni, and staff. A platform like ours is needed to bring a campus closer if the community is willing and able to help one another.

There are other platforms that focus on social …

Assembling And Characterizing The Efficiency Of An Injection Locked Laser System For Cold Neutral Atom Optical Traps, Alexandra Papa Crawford

Physics

Creating a quantum computer requires a system of particles that can be well-controlled to achieve quantum operations. We need a large array of these particles – called qubits – with long coherence times, which can be initialized, operated on by single and two qubit gates, and read out. For neutral atoms, the qubit states are stable ground states that interact minimally with the environment, leading to long coherence times. Experimentally, the qubits are manipulated using carefully timed laser beam pulses with controlled frequency and intensity, but the outstanding issue for optically trapping cold atoms is finding a light pattern that …

Detection Method Of Subclinical Atherosclerosis Of The Carotid Artery With A Hemodynamics Modeling Approach, Marisa Peressini

Master's Theses

Subclinical atherosclerosis is an important area of research to evaluate stroke risk and predict localization of plaque. The current methods for detecting atherosclerosis risk are insufficient because it is based on The Framingham Risk Score and carotid intima media thickness, therefore an engineering detection model based on quantifiable data is needed. Laminar and turbulent flow, dictated by Reynolds number and relative roughness, was modeled through the carotid artery bifurcation to compare shear stress and shear rate. Computer-aided design and fluid flow software were used to model hemodynamics through the carotid artery. Data from the model was derived from governing equations …

Characterization And Removal Efficiency Comparison Of Bioretention Soil Media Mixtures, Nathan T. Hanson

Master's Theses

Bioretention cells have become a commonly used green infrastructure technique to help infiltrate and remove contaminants from stormwater runoff. Bioretention cells are constructed from a layered or heterogeneous soil mixture designed to optimize their ability to infiltrate influent stormwater and remove contaminants carried by the water as it filters through the soil media. The soil mixture, composition, and planting vary depending the local regulatory agencies. As urbanization occurs across the United States, more natural land is converted from pervious surfaces, such as grasslands and forests, to impervious surfaces such as asphalt and concrete, to help reduce the impact of the …

25 Under 25 Film Fest, Michael Frank

Journalism

This project is a roadmap on how to create a film festival with unprecedented origins. It shows the amount of work, the amount of resources, and the amount of contacts that a student must gain in order to achieve success in an event of this nature. It details my own journey as the founder and architect of the 25 Under 25 Film Fest, a two-day film festival highlighting 25 films by filmmakers around the state of California. The festival was a highly successful event with numerous facets, which will be outlined with this evaluation. This examination of the festival will …

Proposal For An Advanced Structural Elective Pertaining To Fire Protection, Avery James Kwong, Taylor Sanchez, Lindsey Macdonald, Alvaro Gonzalez

Architectural Engineering

ARCE 401 Fire Protection is a class that will finally give ARCE students an introduction to fire-resilience and its major importance in the structural and planning spheres. The class would have a structural emphasis along with interdisciplinary qualities, unlike the graduate classes offered in the CE and ME departments. ARCE 401 covers a broad spectrum of topics and is meant to bring ARCE students closer to a comprehensive understanding of the overall work environment.

From Blog To Business: A Cycling Content Transition, Sean Michael Bird

Journalism

The following research project discusses the transition from blog to business, when considering the shift for a platform that offers cycling content. Within the cycling industry, there are a vast array of cyclists, ranging from competitive cyclists to casual, lifestyle riders. Additionally, platforms exist for content production and businesses offer custom products; however, this divide is rarely bridged.

From a content perspective, this research project focuses on storytelling for brand promotion, storytelling for personal branding, and storytelling for social interaction. Within the cycling industry, unique content that focuses on people, places, and adventure fares well. For Everjourney, offerings include features, …

The Effects Of Organizational Philanthropic Movements And Related Public Relations Strategies, Gabriella C. Trapani

Journalism

The following is a comprehensive public relations campaign created after extensive research on public relations efforts and corporate social responsibility. The study is mainly focused on establishing the relationship, if any, between a company’s philanthropic efforts and their profits. The study seeks to answer questions such as “Is the return on investment for philanthropic giving worth it?” and “How might this impact company morale?” With a focus on measuring the success of a philanthropic campaign created for Sereno Group Real Estate company, a small to midsize residential real estate company in the Silicon Valley, this study serves as a basis …

Anxiety Rates In Cal Poly Students: Short Documentary And Literature Review On Prevalence, Causes And Treatment, Anabelle M. Carpenter

Journalism

Anxiety is a leading mental health disorder at California Polytechnic State University, San Luis Obispo. Over 50% of students who visit the counseling reported feeling anxiety, and 14.8% of students met the diagnostic criteria for anxiety disorder during the 2016-2017 school year. Nationally, anxiety rates among college students have increased almost 16% from 2007- 2017 (LeViness, Bershad & Gorman, 2017). This project is comprised of two parts: a short, documentary style video on anxiety at Cal Poly, as well as a literature review. The video is a series of interviews from Cal Poly students who suffer from anxiety, and a …

Arm Mke1xf Mcu Replatform, Nathan Hong, Derek Lung, Japsimran Singh, Bevin Tang

Computer Engineering

After Cal Poly Racing’s electrical team began to hit the technical limits of the ADC and other I/O features of the current 8-bit Atmel AT90 microcontroller unit, it became clear that an upgrade was due. This replatforming project takes the functionalities of the old, 8-bit architecture, and aims to provide a 32-bit version using the ARM MKE1xF MCU. With the idea of having a working PCB as a stretch goal, the scope of the library development was limited to enable base functionality. Thus, the only libraries developed were for the Timer, ADC, SPI, UART, and CAN. Additionally, this document discusses …

Interracial Dating On Campus, Marisa Andersen

Social Sciences

The purpose of this study is to use mixed methods research and grounded theory to determine what obstacles a predominantly White university contains for interracial couples. Previous research involving interracial couples on college campuses has only focused on quantitative surveys. A sample size of 234 students from Cal Poly San Luis Obispo participated in a quantitative survey as well as 12 interracial couples that were separately interviewed. This data was used to gain insight on interracial couples’ experiences on campus. The data revealed that Cal Poly students felt interracial couples were generally supported on campus. However, the racial or ethnic …

Smart Espresso Machine, Hasham Ali, Justin L'Heureux, Hayden Yeung, Pei Hang Zhang

Electrical Engineering

With the recent “Internet of Things” trend, more and more home devices are connected to the Internet. Smart light bulbs, smart thermostats, smart door locks; just to name a few. These smart appliances enable users to view their status and control their settings remotely with just a few clicks on the smartphone. Moreover, the arrival of intelligent personal voice assistants such as Amazon Alexa revolutionized how users interact with these smart appliances. Nowadays, users are able to control these devices by just speaking.

If controlling smart devices is so easy, why not have your morning cup of joe be that …

Nutrient Removal In Microalgae Raceway Ponds And Nitrification Modeling, Esmeralda Diego

Master's Theses

This thesis explores the treatment of municipal wastewater using pilot-scale raceway ponds and looks specifically at the capability of the raceways in removing BOD and nitrogen. Nine 33 square-meter algal raceway ponds were used to conduct research at the San Luis Obispo Water Resources Recovery Facility. Main objectives of this study were to increase the removal of total ammonia nitrogen (NH₃-N plus NH₄⁺-N) from municipal wastewater through increased assimilation and nitrification. Raceway ponds with CO₂ addition were operated in series with an intermediate settling step and a total hydraulic retention time (HRT) of 4 …

Are Illegal Direct Actions By Animal Rights Activists Ethically Vigilante?, Michael P. Allen, Erica Von Essen

Between the Species

Constructed as terrorist, illegal direct actions by animal rights activists have become the subject of draconian law enforcement measures in the US and UK. Some scholars respond to this phenomenon by interpreting such actions to protect vulnerable animals not as terrorist but civilly disobedient. This approach highlights their ethical character, as a normatively relevant consideration in the state’s law enforcement response. Consistent with this approach, we argue that illegal direct actions by animal rights activists are not terrorist, although their motivations are sometimes anti-statist and anarchist. However, we also argue that civil disobedience is an awkward fit for many such …

Academic Senate - Agenda, 5/29/2018, Academic Senate

Academic Senate Agendas

No abstract provided.

Executive Committee - Agenda, 5/15/2018, Academic Senate

Academic Senate Agendas

No abstract provided.

Academic Senate - Meeting Minutes, 5/8/2018, Academic Senate

Academic Senate Minutes

No abstract provided.

As-855-18 Resolution Condemning Recent Racist Events At Lambda Chi Alpha, Gregory F. Domber, Seth D. Hanna

Academic Senate Resolutions

That the Academic Senate condemns the racist actions of the Lambda Chi Alpha, Phi Sigma Zeta Chapter as well as their inactions as an affront to our community standards, our academic endeavors, and the desire to create a more diverse and inclusive environment, and be it further That the Academic Senate stands in solidarity with all student groups, administrators, and community members seeking to transform the University into a more diverse and welcoming environment for students from historically underrepresented populations.

25 Under 25 Fest, Michael Frank

Baker/Koob Endowments Awarded Projects

The 25 Under 25 Fest is a student-organized, two-day film festival in San Luis Obispo that is dedicated to giving young California filmmakers a platform to show their work. The festival will highlight filmmakers under the age of 25 that are making films less than 25 minutes long. It’s an opportunity to only grow the already established film culture within San Luis Obispo county. It will be open to all young people within the state of California, which is the center of American film. We are currently in cooperation with ARTS Obispo and have started to gather other sponsors. With …

Graduate Internship Report Aged 539, Frank C. Roche Iii

Agricultural Education: Graduate Internship Reports

This internship and project report includes documentation required in meeting the quality criteria for secondary-level programs of instruction in agriculture. The documents are concurrently used for the Agriculture Incentive Grant review process at Corcoran High School conducted by representatives of the California Department of Education. The supporting material includes information to receive state and local funding, outline the goals and objectives of the program, along with an overview of Corcoran High School, the agriculture program and the community.