Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

California Polytechnic State University, San Luis Obispo

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1831 - 1860 of 12001

Full-Text Articles in Entire DC Network

Academic Senate - Agenda, 6/02/2020, Academic Senate Jun 2020

Academic Senate - Agenda, 6/02/2020, Academic Senate

Academic Senate Agendas

No abstract provided.


Short Run Box Maker, Jesus Valdez-Ruelas Jun 2020

Short Run Box Maker, Jesus Valdez-Ruelas

General Engineering

Small businesses with short run product catalogs have trouble finding the right size box that will work for multiple products. In turn, this leads most businesses to use oversized boxes resulting in unnecessary shipping fees. The objective of this project was to develop and test a cost-effective prototype of a box making machine that could create a short run of custom sized boxes. A Co2 laser was found to be the best option for cutting cardboard and a vertically standing machine was designed to feed the cardboard via rollers. To control cardboard movement stepper motors were used and controlled using …


Increasing Groundwater Recharge Activity In The San Joaquin Valley Of California, Jacob Willhite, Jacob Willhite Jun 2020

Increasing Groundwater Recharge Activity In The San Joaquin Valley Of California, Jacob Willhite, Jacob Willhite

Agricultural Education and Communication

Over the past several decades, groundwater has become a primary source of water used for agriculture in California. Surface water available for agricultural use has depleted due to declining rain totals and reallocation to environmental purposes. As a result, groundwater overdraft has become a severe challenge, especially in the San Joaquin Valley of California. This excessive overdraft causes a plethora of issues, one of the most serious being land subsidence (Faunt, Sneed, Traum, & Brandt, 2016). Studies suggest some areas of the San Joaquin Valley have experienced more than a 28-foot drop in the land level since the 1970’s (Alley …


Data Acquisition, Analysis, And Modeling Of Rotordynamic Systems, Michael P. Mullen Jun 2020

Data Acquisition, Analysis, And Modeling Of Rotordynamic Systems, Michael P. Mullen

Master's Theses

Data acquisition systems for rotordynamic analysis and machine vibration were explored for the purpose of replacing the obsolete Bently Nevada ADRE 208 and ADRE for Windows system. These included the development of Matlab based custom data acquisition systems and a user interface. A model of an anisotropic rotor response undergoing transient speed was developed for the rapid prototyping and testing of data acquisition systems. Several methods for the measurement of amplitudes and phase in both the time domain and frequency domain were developed and compared. An alternate data acquisition method which is more inline with industry practices was created for …


Yeti: A Cooler Way To Market Your Product, Alana Trnavsky Jun 2020

Yeti: A Cooler Way To Market Your Product, Alana Trnavsky

Experience Industry Management

With the increased use of technology, marketing has evolved to primarily use social and digital media as the platform utilized to share content. Brands have creatively implemented new ways to market their products and services to distinguish themselves from other brands. The purpose of this study was to examine YETI’s marketing strategies. YETI is a high-end outdoor gear brand that is known for its sturdy coolers and drinkware. The research was gathered using a case study guide developed by the researcher, which outlined YETI’s current marketing practices. Within this study, there is an instrument used as a guideline to evaluate …


Sedentary Flesh: Nineteenth-Century French Orientalists And Bodies Of The Female Other, Amelia Aitchison Jun 2020

Sedentary Flesh: Nineteenth-Century French Orientalists And Bodies Of The Female Other, Amelia Aitchison

The Forum: Journal of History

As visual texts of subjectivity and ideology, paintings are uniquely useful tools for historical analysis. Peaking in popularity in nineteenth-century Europe, the enduring erotic mystification of the Turkish seraglio manifested frequently in the form of paintings. At this time, French academicism and realism rose in status internationally and, bolstered by the esteem of the Paris Salon and the competitiveness generated by the advent of photography, so too did elaborately (and misleadingly) detailed depictions of the Orient. This paper concerns the inherent politics of French depictions of Turkish odalisques, focusing on the orientalist discourse generated by the quasi-realistic style of nineteenth-century …


Noble Animals, Brutish Animals, Marcus William Hunt Jun 2020

Noble Animals, Brutish Animals, Marcus William Hunt

Between the Species

The paper begins with a description of a grey seal performing conspecific infanticide. The paper then gives an account of “nobleness” and “brutishness.” Roughly, a behavioural-disposition is noble/brutish if it is one that would be a moral virtue/vice if the possessor of the behavioural-disposition were a moral agent. The paper then advances two pairs of axiological claims. The first pair of claims is that nobleness is good and that brutishness is bad. The second pair of claims is about an axiological interaction between nobleness/brutishness and well-being. That any non-human animal lacks well-being is bad. Yet, it is worse that …


The Midnight Ride Of Sybil Ludington: A Forgotten Hero In The Shadow Of Paul Revere, Jessica Kay Rebollo Jun 2020

The Midnight Ride Of Sybil Ludington: A Forgotten Hero In The Shadow Of Paul Revere, Jessica Kay Rebollo

History

The American historical narrative has always been dominated by men; the achievements of women are often left to the past. One such woman who has been forgotten is Sybil Ludington, who in 1777 at the age of sixteen, rode forty miles to alert a unit of the Continental Army of advancing British troops. In this paper, I will compare Sybil Ludington to history’s most renowned nightrider, Paul Revere. I will study the way in which Sybil Ludington and Paul Revere are memorialized in American history, and expose the reason for the lack of Sybil Ludington’s popularity in the American historical …


Central Coast Creamery Marketing Pamphlet, Camille E. Silvera Jun 2020

Central Coast Creamery Marketing Pamphlet, Camille E. Silvera

Agricultural Education and Communication

The author researched how to create an efficient pamphlet to effectively market and promote Central Coast Creamery's new catering services.


Fire Protection And Life Safety Analysis Of A Chicago Hotel, Thomas Hampton Jun 2020

Fire Protection And Life Safety Analysis Of A Chicago Hotel, Thomas Hampton

Fire Protection Engineering: Culminating Experience Project Reports

The following report contains an analysis of the life safety and fire protection features of a Chicago Hotel. The report is intended to meet the requirements for the Culminating Experience of the Cal Poly Master of Science Fire Protection Engineering Program.

The Chicago Hotel building chosen for the analysis is a mixed-use 7-story hotel. On the 1st, 2nd, and 7th floors of the building are spaces for mercantile and restaurant tenants as well as other spaces necessary for the operation of the building such as back of house space for the hotel, storage, employee locker rooms, hotel and retail lobbies, …


Fire And Life Safety Analysis: San Francisco Museum Of Modern Art, Jason Woo Jun 2020

Fire And Life Safety Analysis: San Francisco Museum Of Modern Art, Jason Woo

Fire Protection Engineering: Culminating Experience Project Reports

A fire and life safety analysis was conducted to fulfill a requirement for the Master of Science Degree in Fire Protection Engineering from California Polytechnic State University. A prescriptive and performance-based analysis was conducted on the San Francisco Museum of Modern Art. The SFMOMA is a 10-story, 460,000 𝑓𝑡2 , Type 1A mixed occupancy building. Located in the northwest corner of San Francisco, SFMOMA houses a collection of over 33,000 works of painting, sculpture, design and media making it one of the largest museums in the world for modern and contemporary art.

Four features of the prescriptive based analysis include: …


Powell Building, David John Devinney Jun 2020

Powell Building, David John Devinney

Fire Protection Engineering: Culminating Experience Project Reports

A detailed study of the fire and life safety systems was performed on the Powell Building located in Oak Ridge, TN. This report consists of both prescriptive and performance-based analysis. The prescriptive based analysis reviews the fire and life safety requirements in accordance with the applicable codes. The prescriptive portion of this report included life safety, fire suppression systems, fire alarm and detection systems, and structural fire protection. The performance-based analysis was used with viable fire scenarios to ensure that occupants could safely egress the building. This was accomplished by comparing the Required Safe Egress Time (RSET) with the Available …


Design And Implementation Of A Deterministic And Nondeterministic Finite Automaton Simulator, Camron C. Dennler Jun 2020

Design And Implementation Of A Deterministic And Nondeterministic Finite Automaton Simulator, Camron C. Dennler

Computer Science and Software Engineering

The purpose of this project is to assist students in visualizing and understanding the structure and operation of deterministic and nondeterministic finite automata. This software achieves this purpose by providing students with the ability to build, modify, and test automata in an intuitive environment. This enables a simple and efficient avenue for experimentation, which upholds the Cal Poly ideal of Learning by Doing.

Readers of this report should be familiar with basic concepts in the theory of finite state machines; a general understanding of object-oriented programming is also necessary.


Cascaded Voltage Clamping And Ldo Offline Power Supply, Elizabeth Davis, Timothy Jeong Jun 2020

Cascaded Voltage Clamping And Ldo Offline Power Supply, Elizabeth Davis, Timothy Jeong

Electrical Engineering

Offline power supplies are necessary for any sort of electronic device that utilizes wall power. For offline power supplies, it is a common practice to use the switching mode method where the high voltage AC input is first rectified and then switched at high frequency to a much lower voltage. This method has been known to be very efficient. Also, it’s more efficient than a linear supply method where the AC input is stepped down and then linearly regulated down to a low voltage. Despite the efficiency benefit, the switching method employs a high frequency transformer and inductor. This will …


Bi-Directional Dc-Dc Converter, John W. Hamlin, Oscar Ambriz, Luis Onofre Jun 2020

Bi-Directional Dc-Dc Converter, John W. Hamlin, Oscar Ambriz, Luis Onofre

Electrical Engineering

This project was developed with the purpose of creating an efficient energy management system for the DC House project, with a centralized 12V battery system fed by a 48V Multiple Input Single Output Source (MISO). The energy management system will consist of a bidirectional DC-DC converter. During the day when the renewable sources produce enough energy to fulfill the load’s energy demand, the converter will make use of the excess energy by taking a 48V DC input and stepping it down to a 12V DC output in order to charge a 12V 100 Ah battery. When renewable sources can no …


Miso Dc-Dc Farmbot, Quyen Thi Nguyen, Brian Armijo, Astha Adhikari Jun 2020

Miso Dc-Dc Farmbot, Quyen Thi Nguyen, Brian Armijo, Astha Adhikari

Electrical Engineering

Making use of renewable energy directly from the location of production requires converting source power into usable power. The specific scope of this project focuses on the DC to DC conversion within a user friendly universal farmbot system. Since renewable sources vary widely in voltage and current, a wide input-range DC to DC converter is desired. Physical isolation, long lifespan, and adverse weather requires safe and reliable final product specifications. The goal of a very wide customer base drives the need for a product that does not require tinkering to get working, but to be usable out of the box …


Lawn Buddy, Jayson Johnston, Andrew Brown, Jacob Maljian Jun 2020

Lawn Buddy, Jayson Johnston, Andrew Brown, Jacob Maljian

Electrical Engineering

Grass lawns are a common hallmark of the American home. In 2019, a survey from the National Association of Landscape Professionals found that 81% of all Americans owned a lawn [1]. Mowing is a time consuming and costly chore that is part of maintaining a grass lawn. The manual labor in mowing a lawn can exceed 40 hours per year [2]. People commonly incur weekly costs on mowing services to save time. Traditional gas powered mowers are physically demanding and use engines that need routine maintenance. They operate loudly enough that users should be wearing hearing protection and the noise …


Electricity Price Prediction With Computational Intelligence, Toan Hoang Jun 2020

Electricity Price Prediction With Computational Intelligence, Toan Hoang

Electrical Engineering

Electricity price depends on numerous factors including the weather, location, time of year/month/day (summer, holidays, day/night, etc.), consumption, and market changes or disruptions. The power loss in the transmission lines and the use of electricity also affect the load's price. Forecasting about the electricity price provides future trends and patterns consumption of the users. Forecasting electricity price is crucially important for producers and consumers in the energy trading markets. It is a complicated task because of the uncertainty behaviors and demand fluctuation. The maximization of profit for participants is highly associated with the bidding strategies. Multiple forecasting electricity price tools …


Plant Growing Control With Modicon M580, Brittany M.Y. Won, Eileen T. Tran Jun 2020

Plant Growing Control With Modicon M580, Brittany M.Y. Won, Eileen T. Tran

Electrical Engineering

Currently, the Industrial Power and Controls lab is being developed by the Cal Poly Electrical Engineering department. The lab is equipped with recently donated Modicon M580 Programmable Logic Controllers (PLCs) from Schneider Electric. In addition to PLCs, Schneider Electric also donated Human Machine Interfaces (HMI) and input/output modules. This project focuses on the creation of a lab experiment that will give future Cal Poly electrical engineering students hands-on experience with this equipment. To show students the broad range of PLCs and the role that electrical engineering plays in various industries, this experiment focuses on the agriculture industry, but more specifically, …


Energy And Economic Losses Due To Soiling On Utility Scale Pv Systems To Guide Timing Of Cost Effective Cleaning, Jackson P. Puckett, Maximilian M. Sosa, Brandon F. Grossman Jun 2020

Energy And Economic Losses Due To Soiling On Utility Scale Pv Systems To Guide Timing Of Cost Effective Cleaning, Jackson P. Puckett, Maximilian M. Sosa, Brandon F. Grossman

Electrical Engineering

The energy and associated economic losses due to soiling on both residential and utility scale PV (photovoltaic) systems can be both significant and avoidable. Losses from 1.2% up to 6% have been reported, which is of interest to system operators [1]. Modules may be cleaned to reduce losses, but this comes with an offsetting economic cost. A quantification of energy losses, and the corresponding economic loss, will allow a determination of a closer to optimal cleaning schedule depending on the level of soiling and corresponding energy loss. Two methods are proposed and compared. Method 1 uses an ARES Soiling Measurement …


Photovoltaic Emulator Labview Based Modeling And Simulation, Jeffrey So, Eric Jau Tse Jun 2020

Photovoltaic Emulator Labview Based Modeling And Simulation, Jeffrey So, Eric Jau Tse

Electrical Engineering

The design goal for this project is to create a system capable of creating a consistent testing environment for photovoltaic inverters and charge controllers. The solution is to create a photovoltaic emulator which is a DC power supply that would have the same electrical output characteristics to a photovoltaic panel. In current systems, consistency problems arise when depending on nature to conduct tests on PV modules because it is impossible to properly replicate scenarios while testing specific conditions. This project will provide the user the ability to test their PV modules under various parameters which replicate real-world scenarios such as …


Sweep-N-Go 3.0, Maria Cortelyou Pieroni Jun 2020

Sweep-N-Go 3.0, Maria Cortelyou Pieroni

Electrical Engineering

This project improves the current performance of the Sweep-N-Go LabVIEW program used in Cal Poly electrical engineering laboratories. Sweep-N-Go expedites the laboratory data collection process through automated testing. The new version of the program (Sweep-N-Go Version 3.0) reduces user debugging time, improves sustainability, increases efficiency, and considers all new lab bench equipment. Sweep-N-Go Version 3.0 includes an enhanced Graphical User Interface (GUI) to optimize user-efficiency and user-friendliness according to student survey feedback. To further achieve usability, this program has been well documented online, outlining LabVIEW functions, such as how to open the program in LabVIEW, how to run an executable …


Dual Axis Solar Panel Tracker, Xavier Joseph Lugue, Javier Harrison, Nicholas Ryan Wolfe Jun 2020

Dual Axis Solar Panel Tracker, Xavier Joseph Lugue, Javier Harrison, Nicholas Ryan Wolfe

Electrical Engineering

Photovoltaic systems generate more energy when orthogonally facing the sun where solar cells absorb the most light. By creating an effective, autonomous solar tracking system, the developed solar panels consistently generate maximum energy while using less power. Dual axis solar trackers surpass single axis trackers in energy generation, however, their cost and reliability provide a significant drawback. This project develops different algorithmic implementations designed to provide optimal and efficient behavior for photovoltaic systems. These algorithms adjust the solar panel’s position appropriately with the sun’s location, weather conditions, and selected operating modes. The solar tracking system’s operations include latitudinal axis capability …


Eeg Midi Controller, Jack Ellison, Eric Bettencourt Jun 2020

Eeg Midi Controller, Jack Ellison, Eric Bettencourt

Electrical Engineering

One of the greatest challenges for aspiring musicians is the amount of practice and commitment required to become fluent in a traditional instrument. Taken a step further, individuals who have impaired motor skills may be incapable of even executing the physical demands required to practice one. While this device does not create notes directly from a user's brain waves, exploring and designing EEG based musical hardware capable of using a person’s thoughts to control musical devices could pave the way for greater advances. It can also open many doors into psycho-acoustic research, treating the mind's response to hearing music and …


The Characterization Of Effective Electromagnetic Fields On The Safety And Quality Of Low-Moisture Foods (Effs) - Prototype Device Development, Joe G. Sandoval Jun 2020

The Characterization Of Effective Electromagnetic Fields On The Safety And Quality Of Low-Moisture Foods (Effs) - Prototype Device Development, Joe G. Sandoval

Electrical Engineering

Contamination of low-moisture foods including flour, wheat grain, baby formula, and more, have increasingly become a concern due to sanitizing challenges. While industrial food processors have long used RF heating to sanitize mass quantities, an equivalent consumer device is absent from the market today. The Characterization of Effective Electromagnetic Fields on the Safety and Quality of Low-Moisture Foods (EEFS) project is an interdisciplinary effort to develop an RF heating consumer device to sanitize low-moisture foods.

A prototype device was designed to sanitize low-moisture food items using RF heating acceptable for commercial or consumer applications.


Artificial Neural Network To Detect Alzheimer's In Mri Scans, James Alden Poirier, Michael Gary Tuttle Jun 2020

Artificial Neural Network To Detect Alzheimer's In Mri Scans, James Alden Poirier, Michael Gary Tuttle

Electrical Engineering

Alzheimer’s Disease ranks (AD) as one of the most common diseases in America. Currently, detecting Alzheimer’s Disease relies upon reported symptoms, however changes in the brain can manifest years or decades before symptoms appear. In recent years, researchers have successfully utilized Artificial Neural Networks (ANN) for a variety of image classification tasks. Here, we train an ANN to detect Alzheimer’s Disease using magnetic resonance imaging (MRI) brain scans. Giving an MRI to both a neural network and a doctor will allow the doctor to be more confident in their answer, as well as double-check their answer with an objective report …


Informing The Creation Of A Financial Literacy Tool For Cal Poly Students, Kelly Michelle Carroll Jun 2020

Informing The Creation Of A Financial Literacy Tool For Cal Poly Students, Kelly Michelle Carroll

Communication Studies

This research project examines the wants, needs, and desires of Cal Poly students to inform the creation of a financial literacy tool (tentatively named “MoneySmart”) to be created by another student. The methodologies used to gauge these metrics were a literature review and questionnaire. The literature review aids in understanding research regarding the current state of student financial literacy in the United States, including student attitudes toward the topic. Subsequent findings were used to create the questionnaire, which inquired about students’ financial stress, confidence in their abilities to manage their personal finances, specific interests for the design and contents of …


Heavenly Bodies Rsvp, Justin Tyler Spitzer, Allison Jean Turnbaugh, Jack William Boulware, Braden Alex Lockwood Jun 2020

Heavenly Bodies Rsvp, Justin Tyler Spitzer, Allison Jean Turnbaugh, Jack William Boulware, Braden Alex Lockwood

Mechanical Engineering

The purpose of the Heavenly Bodies RSVP project was to design and fabricate planet props, as well as a mechanism by which they could be raised and lowered in California Polytechnic State University’s Pavilion theater. The project team was comprised of four fourth year mechanical engineering students: Allison Turnbaugh, Braden Lockwood, Jack Boulware, and Justin Spitzer. We conducted extensive research to determine the ideal solution for the design problem brought to us by our sponsor. In our analysis, we discovered that the most important aspects of our design were the absolute reliability of the system, fire retardant material selection, and …


Cal Poly Microgrid Fixed Pv Array, Christopher L. Ewert, Justin R. Syracuse, Donald A. Syracuse, Jason M. Kehl Jun 2020

Cal Poly Microgrid Fixed Pv Array, Christopher L. Ewert, Justin R. Syracuse, Donald A. Syracuse, Jason M. Kehl

Mechanical Engineering

The Mechanical Engineering Department at California Polytechnic State University of San Luis Obispo would like an adjustable, fixed angle solar panel mount to help educate students on basic solar energy principles. Our team has developed a unique sawhorse design utilizing ideation techniques and design selection tools. The selected design allows for multiple panel adjustability and control of both azimuth and tilt angle. Safety concerns are addressed with action plans to mitigate risk. Concept prototypes to justify gearbox functionality and subsystem cohesion was utilized to reduce manufacturing issues. Manufacturing began in March 2020 and proceed through until the end of the …


Elevate Dental, Connor Merrick, Everett Johnson, Jonah Holbrook Jun 2020

Elevate Dental, Connor Merrick, Everett Johnson, Jonah Holbrook

Mechanical Engineering

During a dental procedure, patients are often required to have a bite block placed in their mouths to keep them open for the duration of their procedure. These can be very uncomfortable for patients due to lack of properly-fitting sizes. This project presents an alternative fully adjustable bite block that is affordable, comfortable, and easy to use for dental personnel.The bite block is a two piece side loading design that uses interlocking teeth to supply a range of five sizes.