Digital Commons Network^™

Construction Of A Sustainable High-Tech Greenhouse, Miguel A. Sadler

Construction Management

The purpose of this project is to assess the feasibility for farmers to upgrade from conventional farming methods to using sustainable, high-tech greenhouses. For all intensive purposes, the values presented in this paper are based off the assumption that a farmer already owns their land and can use this paper as a reference to see what it would look like if they wanted to make the upgrade to high-tech greenhouses. To assess the viability of this project my partner and I set out to complete all the preconstruction activities that a project team would need to complete for a potential …

Construction Installation Guide Concrete Reinforced Shear Wall Cal Poly Arce Department, Giovanni Koelsch Dal Canto

Construction Management

California Polytechnic University prides itself on its “Learn by Doing” teaching procedures. The “Learn by Doing” atmosphere is ingrained in every student that attends the university. It is necessary for students especially in the ARCE field to obtain real life experience before entering the professional world. Ensuring that ARCE students have a means to practice and create new knowledge in the field of reinforced concrete shear wall testing is necessary to maintain Cal Poly’s education progression. Creating a reinforced concrete shear wall that can be built year after year for ARCE students to test on has been asked for by …

Paso Robles Police Department Outdoor Training Facility Improvements – Phases 2 & 3, Gavin J. Abraham

Construction Management

This paper outlines the pre-construction and construction of the 24,300 square foot Paso Robles Police Department outdoor training facility improvements. The project focuses on 12,000 square feet of the total site with improvements that include earthwork and new concrete flatwork. This project is a group project with Zach Stellini and Nic Petri that is broken up into three phases. This report will primarily focus on phases 2 & 3, which include concrete flatwork and finish grading. The purpose of this project was to provide the Paso Robles Police Department with a modern, functional facility that allows its officers to be …

E-Commerce And Web Design For Small Businesses: Using Blogs To Build Engaging Consumer Marketing, Emma N. Tomlin

Journalism

The following study explores how to develop a successful website for an E-Commerce store that is user-friendly and engaging to consumers. A key concept that this study will discuss, is how a blog can create engaging consumer marketing. This study is focused on Moondoggies Beach Club, a surf shop with two brick-and-mortar locations in San Luis Obispo, California. A Cal Poly student saw the need for their existing online presence to be reevaluated and recreated. This paper will address the importance of well-done web design for E-Commerce, including ways to achieve user-friendly, easily accessible, well thought out web design; as …

Cal Poly’S Journalism Department: An Analysis Of Diversity And Inclusion, Sydney Gwenn Brandt

Journalism

In this project, I analyze what diversity and inclusion looks like in Cal Poly’s journalism department and how it compares to other universities and other programs. I spoke with several students about their experience in the department and their views on the efforts made to improve diversity. I also break down the demographics and share insight into goals the department has for improvements in staff and curriculum.

Economic Barriers To Media Entrepreneurship And Media Plurality, Aidan Christopher Mcgloin

Journalism

The purpose of this article started out with a simple hypothesis: the lack of media plurality in America is due to an increase in news publishing costs and standards over the past hundred years. News presses have increased in so much cost that new publishers have no chance to front the high up-front cost or maintain journalistic quality with their competition.

Academic Senate - Agenda, 5/26/2020, Academic Senate

Academic Senate Agendas

No abstract provided.

Executive Committee - Agenda, 5/12/2020, Academic Senate

Academic Senate Agendas

No abstract provided.

Academic Senate - Agenda, 5/05/2020, Academic Senate

Academic Senate Agendas

No abstract provided.

Brochure For California Counties Affected By Coccidioidomycosis, Taylor Craig Chalstrom

Agricultural Education and Communication

In many areas of California, workers involved in construction and agriculture are susceptible to a soilborne fungus which can cause coccidioidomycosis, or valley fever. The disease, which can be contracted by breathing in dirt or dust on a site, is contagious and can sometimes lead to serious and/or fatal symptoms without proper treatment (CDPH, 2018).

Valley fever has been one of the most prevalent diseases in recent years for San Luis Obispo County (VF Brochure, 2018). To counter the increasing number of cases, San Luis Obispo County and the Public Health Department collaborated to inform as many people as possible …

Overview And Uncertainty Analysis For An Irrigation Flow Measurement Facility, Kyle Feist, Zachary Markow, Stuart Styles

BioResource and Agricultural Engineering

Accurate flow measurement is critical for modern water resource management. At the irrigation district level, instantaneous flow rates must be well-measured at key bifurcation points to reliably meet downstream demand in open channel systems while also minimizing diversions. Furthermore, good flow measurement at each delivery point is a pre-requisite for successful volumetric water billing. Accuracy and repeatability are important characteristics of good flow measurement. Maximizing these traits requires periodic calibration to a common standard.

This paper presents an overview of calibration efforts and the engineering background behind an active flow measurement facility at the Irrigation Training and Research Center at …

Flow Rate Equation For Suppressed And Submerged Sluice Gates, Charles M. Burt, Albert J. Clemmens, Kyle Fesit

BioResource and Agricultural Engineering

In irrigation projects, the control and measurement of flow rates at key bifurcation points is essential. Sluice gates at the heads of irrigation canals are used by operators to control the flow into these canals. In US irrigation districts, canal operators often estimate flow rate at the heads of canals by “experience” unless they have a flume downstream. For example, they may open a gate a certain number of turns for a change in flow rate, regardless of upstream and downstream conditions. Theoretical estimates of discharge are often inaccurate in field situations. Problems include varying and uncertain discharge coefficients, entrance …

A Novel Arc Welding Power Supply With Improved Power Factor Correction, Benjamin H. Tan

Master's Theses

This paper presents the design and development of a novel Arc Welding Power Supply utilizing a modified two-switch forward converter topology. The proposed design improves the power quality by improving power factor to near unity and reducing total harmonic distortion. State space analysis of the proposed circuit showed that the circuit followed a boost-buck input output relationship. Simulation of the circuit was first implemented in LTspice to verify the functionality of the new topology. Hardware implementation of the proposed design was built on a scaled-down prototype for a proof-of-concept of the new topology. The prototype specifications were created for a …

Multiple Input Single Output Converter With Maximum Power Point Tracking For Renewable Energy Applications, Kenneth K. Nguyen, Taufik Taufik

Master's Theses

In this thesis, a maximum power point tracking (MPPT) for multiple input single output (MISO) converter is presented such that power generated from multiple individual energy sources can be combined to deliver the maximum amount of power to a common resistive load. Typically, MISO converters will employ techniques that yield equal current sharing from each energy source. However, this may not be desirable since each source may be rated at different power ratings and/or may experience different operating conditions, preventing the system MISO converter to acquire the most available total power from the sources. Utilizing MPPT control would therefore be …

Formation Pathways In Brightest Cluster Galaxies: Measuring The Distribution Of Ages, Metallicities, And Hydrodynamics Of Stellar Populations, Priscilla E. Holguin West

Physics

Brightest Cluster Galaxies (BCGs) are the most massive galaxies in the local universe and have had the full age of the universe to build. This makes their formation and evolution history particularly interesting as they offer a glimpse at potential evolutionary pathways for younger systems. We present the radial profile of ages, metallicities, and preliminary classification of companions to 23 BCGs observed using the SparsePak instrument on WIYN by running the STARLIGHT stellar population synthesis models. This analysis of the BCGs’ stellar populations is done by separating each BCG into different regions, and preliminary results of the stellar populations for …

Service Dog Ramp, Matthew Lundgren, Ariel Tolentino, Dallas Rocha, Adam Mayeda

Mechanical Engineering

This project involves designing a device to help a service dog easily get into and out of a truck. It details the design and manufacturing process. The project was interrupted due to the COVID-19 pandemic, so detailed instructions are provided for whoever takes on the project in the future.

Portable Calorimeter For Fire Experiments, Kayla Collins, Kara Hewson, Christopher Chen, Joel Keddie

Mechanical Engineering

Executive Summary

An oxygen consumption calorimeter works by measuring the heat release rate of a burning substance. This value is calculated by measuring the oxygen and byproducts in smoke from afire.In order to get these values two types of sensors were used. A non-dispersive infrared sensor (NDIR) that measured CO and CO2 and a zirconium O2 sensor were used to find their respective gas concentrations.The design to calculate the heat release rate is focused on maximizing sensor accuracy and portability while simplifying the manufacturing by using off-the-shelf components. The goal included making the system simple to recreate and package in …

An Investigation Of Diode Failure, Nicholas James Adams

Physics

Solar electricity can be used to cheaply cook food and charge electronic devices. We investigate the viability of using diodes as heating elements for insulated solar electric cooking (ISEC). In addition, information on designing and constructing ISEC compatible phone chargers and rechargeable LED lighting systems is included.

Cascaded Linear Regulator With Negative Voltage Tracking Switching Regulator, Ernest Lei

Master's Theses

DC-DC converters can be separated into two main groups: switching converters and linear regulators. Linear regulators such as Low Dropout Regulators (LDOs) are straightforward to implement and have a very stable output with low voltage ripple. However, the efficiency of an LDO can fluctuate greatly, as the power dissipation is a function of the device’s input and output. On the other hand, a switching regulator uses a switch to regulate energy levels. These types of regulators are more versatile when a larger change of voltage is needed, as efficiency is relatively stable across larger steps of voltages. However, switching regulators …

Pismo Clams (Tivela Stultorum) In Califorina: Population Status, Habitat Associations, Reproduction, And Growth, Alexandria R. Marquardt

Master's Theses

Marine shellfish play a vital role in intertidal ecosystems and coastal communities, but many of these fisheries are small-scale and lack the necessary monitoring to ensure long-term sustainability. Effective management often requires information on key demographic parameters, such as population status, reproduction and growth. Pismo clams (Tivela stultorum) are a culturally important and iconic species in California, which supported a thriving commercial and recreational fishery throughout much of the 1900’s. However, Pismo clam populations have declined statewide in recent decades and are attributed to human harvest and predation by California sea otters (Enhydra lutris); However, no …

Does The Press Have A Right To Be Wrong?: Fake News, Press Freedom, And Defamation Law In 2021, Nathan T. Danielson

Journalism

The following study analyzes defamation lawsuits filed against Fox News and its on-air personalities by companies that manufactured and maintained voting machines used in the 2020 US presidential election. Smartmatic and Dominion accused Fox in court of broadcasting debunked allegations that the companies had rigged the election against incumbent president (and longtime Fox viewer) Donald Trump. The size of the sought-after damages, and the size of Fox itself, make this the largest “fake news suit” in history. This study explores the merits of the suits, defenses to defamation (particularly opinion, political speech, and retraction) and the potential ramifications of a …

As-900-20 Resolution On The Marketing Of Cal Poly's Educational Identity And Goals, Academic Senate Executive Committee

Academic Senate Resolutions

That Cal Poly’s marketing/branding policies and materials include references to and definitions of Cal Poly’s educational identity and goals based only on those documents which have received both faculty endorsement via the Academic Senate and approval by the President; and be it further RESOLVED that Cal Poly’s Academic Senate be consulted through all stages of future efforts to modify marketing/branding policies and materials intended to promote Cal Poly’s educational identity.

Executive Committee - Agenda, 4/28/2020, Academic Senate

Academic Senate Agendas

No abstract provided.

As-894-20 Resolution On Revisions To University Faculty Personnel Policies Chapter 4: Ufpp 4 Responsibilities In Faculty Evaluation Processes, Academic Senate Faculty Affairs Committee

Academic Senate Resolutions

The policy included in the report “Proposed Revision of University Faculty Personnel Policies CHAPTER 4: UFPP 4 Responsibilities in Faculty Evaluation Processes” replace the policies currently in UFPP 4, and be it further RESOLVED that Colleges and the Library examine their personnel policies in light of these revisions to UFPP chapter 4, and if necessary, revise chapter 4 of their personnel policy documents by the beginning of Fall 2020 to comply with UFPP.

As-895-20 Resolution On Suspending Elearning Addendums, Academic Senate Curriculum Committee

Academic Senate Resolutions

That the Academic Senate suspend the requirement for an eLearning addendum for faculty who wish to teach courses virtually in Academic Year of 2020-2021; and furthermore let it be RESOLVED that any course offered virtually from Spring 2020 through Spring 2021 would need to be approved through the regular curricular review process before being offered again virtually after the Spring 2021 term unless this resolution is extended by the Academic Senate.

Aged 539 Internship Report - Waterford High School Agriculture Department, Crestina M. Abraham

Agricultural Education: Graduate Internship Reports

This internship and project report includes validation documents required in meeting the quality criteria for secondary-level programs of instruction in agriculture. The supporting material includes information to receive state and local funding, outline the goals and objectives of the program, along with an overview of Waterford High School, the agriculture program, and the community.

Fluid Power Vehicle Challenge, Jacob Torrey, Kayla Londono, Bryson Chan, Aaron Trujillo

Mechanical Engineering

The FPVC combines mechanical engineering disciplines to design and manufacture a vehicle that utilizes hydraulic power. The FDR covers the final manufacturing process and verification processes developed during the front end of research and analysis built upon the Critical Design Review (CDR) and the PDR (Preliminary Design Review). This report showcases the design decisions and extensive research that supports the continuing efforts by the Team Pump My Ride, to build upon the accomplishments of Cal Poly’s previous team, The Incompressibles. The FDR presents how Team Pump My Ride produced the design changes from the CDR and PDR to achieve improvements …

Heavy Civil Estimating Module For Cm 314, Everett A. Roberts

Construction Management

In the past, through engagement with students that have gone through the Heavy Civil class, it has been found that student understanding of typical heavy civil operations is subpar. Through an updated course module that focuses on estimating the four major operations, Earthwork, Underground, Asphalt, and Concrete, students will gain a deeper understanding of the heavy civil field of construction. The module consists of four assignments that pertain to the previously mentioned operations. Each contain a lecture detailing typical crew compositions and cycle times, reference material and resources the student can use when completing the assignments. This new module will …

Academic Senate - Agenda, 3/10/2020, Academic Senate

Academic Senate Agendas

No abstract provided.

Inverse Dynamics Analysis Of Youth Pitching Arm Kinetics Using Body Composition Imaging, Jay A. Sterner, Scott K. Reaves, Arnel L. Aguinaldo, Scott Hazelwood, Stephen M. Klisch

Biomedical Engineering

This study’s objectives were to: (1) assess whether dual energy X-ray absorptiometry (DXA)-mass inverse dynamics (ID) alters predictions of youth pitching arm kinetics and (2) investigate correlations between kinetics and body composition. Eighteen 10- to 11-year-olds pitched 10 fastballs. DXA scans were conducted to obtain participant-specific upper arm, forearm, and hand masses. Pitching arm segment masses and kinetics calculated with scaled and DXA masses were compared with paired t-tests and correlations were investigated with linear regression. Hand (p < 0.001) and upper arm (p < 0.001) DXA masses were greater, while forearm (p < 0.001) DXA masses were lesser, than their scaled masses. Shoulder compressive force (p < 0.001), internal rotation torque (p < 0.001), and horizontal adduction torque (p = 0.002) increased when using DXA masses. Shoulder compressive force correlated with body mass (p < 0.001) and body mass index (BMI; p = 0.002) and elbow varus torque correlated with body mass (p < 0.05). The main conclusions were that (1) using participant-specific mass ratios leads to different predictions of injury-related pitching arm kinetics and, thus, may improve our understanding of injury risk factors; and (2) pitching arm kinetics were correlated with body composition measures and a relatively high total body mass and/or BMI may increase shoulder and/or elbow injury risk.