California Polytechnic State University

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    Case Study - A Comparative Analysis of Two Different Wastewater Treatment Plants

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    This case study compares two different wastewater treatment plants and analyzes the different characteristics, including strengths and weaknesses of both. The first plant being addressed is the Stockton Regional Wastewater Controls Facility (RWCF), and the second plant studied is the Morro Bay Water Reclamation Facility. These facilities are both quite new at the time of this paper, though they are both very different in size and geographical location, as one is on top of a hill, and one is in the middle of a valley. The Stockton RWCF is currently under construction, nearing completion at the time of this paper, and has a current budget of approximately 300million.TheMorroBayWaterReclamationFacilitywascompletedin2023andcost300 million. The Morro Bay Water Reclamation Facility was completed in 2023 and cost 115.5 million to complete, including 78millionforthefacilityitselfandanother78 million for the facility itself and another 37.5 million for pipelines and pump stations. Factors such as these, different filtration systems being used, budget, and other miscellaneous information will be used to determine the pros and cons to each facility. The focus of this study is to provide valuable information which could improve future construction of wastewater treatment and evaluate the effectiveness of current technology and alternatives

    What Construction Management Students are Looking for in a Job Offer

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    Many construction companies and construction management firms invest large amounts of time and resources into the acquisition of new talent directly out of college from universities such as California Polytechnic State University San Luis Obispo (Cal Poly). Because of this, the knowledge of what incentives would be most enticing to a construction management student preparing to graduate would prove beneficial to the aforementioned construction management companies. In order to find a base level understanding of that knowledge this paper looks to report on a survey of construction management students at Cal Poly about how important a myriad of common job incentives are. From the survey the three most important job incentives were, in descending order of importance; the job having evidence/examples of career development; the job being high paying; and the job being in a desired location. While the least important job incentives were, in ascending order of importance; the job doing a desired type of work; the job having long term investment options; and the job offering formal training. From these results construction management companies should be using their resources allocated for recruitment more on emphasizing the higher valued incentives from the survey and not the less important options

    Traducciones de documentos de las Bibliotecas Públicas del Condado de San Luis Obispo y la organización Madrinas para Latinas USA

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    This project attempts to facilitate my personal engagement with the local Spanish-speaking community of San Luis Obispo by broadening the scope of which the local public-serving organizations are able to serve this community, as well as the bilingual English-and-Spanish-speaking inhabitants of the local area. My goal in completing this project is to expand the resources available to the Spanish-speaking inhabitants of SLO, as well as the families here with individuals of varying degrees of Spanish-speaking and English-speaking abilities. In order to do so, this project is comprised of my translations of multiple documents from the County of San Luis Obispo Public Libraries from their original form in English into Spanish, as well as my translations from Spanish into English of documents from the organization Madrinas para Latinas USA. The first step I took when carrying out this project was reading the documents over in order to make sure I had at least a general awareness of their meaning. Then, I began to translate them, by making use of both my knowledge of the two languages as acquired throughout my education, as well as the textbook, Introduction to Spanish Translation by Jack Child. Additionally, I occasionally also turned to online English-Spanish translation websites for help with my work, however, only while exercising caution. I attempted to avoid any error inherent to such platforms by cross-referencing multiple different platforms when making use of them. This project is of the utmost interest to me because it gives me the opportunity to put my bilingual skills that I have harnessed during my time as a Spanish major to good use in order to serve the local Hispanic/Latinx community

    Academic Senate - Agenda, 2/13/2024

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    Focused LED Sintering

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    This report provides a detailed overview of the final design of our light-emitting diode (LED) focusing system. Our system incorporates a converging lens and a specially designed glass funnel, which acts as a thick fiber optic that narrows the light to a fine point through internal reflection. The glass components of our system are precisely housed in a part made using advanced computer-numeric controlled (CNC) Mill and CNC Lathe manufacturing processes. This ensures high precision and durability of the overall system. Our LED focusing system is designed with a 60-watt stage light. The decision to use a glass funnel as the primary focusing mechanism was made after testing at the beginning of the year. Initial comparisons between the glass funnel and a system of lenses revealed that the funnel significantly outperformed the lens system in terms of the ability to focus the LED light. In this report, we will present the results of our testing procedures with the glass funnel. To conclude the report, we will outline the next steps we would recommend to enhance the efficiency and performance of the system

    Cal Poly Battle Bot

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    This senior project endeavored to design, construct, and optimize a 120lb robot combatant tailored for the competitive arena of combat robotics. The project is a collaborative effort between mechanical, computer, and electrical engineering students at Cal Poly, combining diverse expertise to achieve a unified goal. Our competition, RoboGames, was in April of this year in Northern California. The mechanical engineering team assumed primary responsibility for the physical components of the battle bot, focusing on three pivotal components: a robust drivetrain, armor, and a highperformance vertical spinner. These elements constitute the foundation of the battle bot\u27s offensive and defensive capabilities, crucial for success in the competition arena. This Final Design Review brings the results of our design and testing. All four subsystems have been engineered to meet the requirements of our sponsor as will be shown in our supporting documentation. This document includes theoretical calculations used to conduct comprehensive stress analyses, affording invaluable insights into the expected behavior of our robot at the competition. These analyses will serve as a benchmark for real-world testing, allowing for iterative refinement and optimization. The convergence of theoretical simulations and empirical data will drive the project towards an optimized and battle-ready configuration. Our project meets the criteria of being a functional prototype by serving as a foundation for the Cal Poly Battlebots team as something that next year’s team can build upon. The current robot can drive and only needs a few machining improvements to be mechanically battle ready for the competition next year. By synergizing the diverse expertise of mechanical, computer, and electrical engineering disciplines, this project aims to culminate in a battle bot that not only excels in the rigors of competition but also showcases the ingenuity and collaboration of our interdisciplinary team

    Snap It & Send It

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    This report details the final design, manufacturing and assembly, testing procedures and results, as well as future design recommendations of a device aimed at enhancing the mountain biking experience for individuals with limited thumb strength. This project particularly focused on the experience of our sponsor, Cal Poly Mechanical Engineering Professor Andrew Kean. Our team\u27s objective was to create a secure, ergonomic handlebar grip system that does not require thumb strength and is adaptable to various mountain bike models. The final design utilizes a rigid hook that snaps onto mountain bike handlebars with a long, flat piece that slides into a pocket of a modified wrist brace. Notable design changes include the removal of the glove attachment and velcro strap presented in CDR, and the implementation of a modified wrist brace. Our manufacturing process was quick and cost-effective since we utilized Mustang 60’s Markforged 3D printer with Carbon Fiber Nylon (Onyx) filament, an off-the-shelf wrist brace, and an off-the-shelf mountain bike grip. Qualitative testing was done by our sponsor, Andrew Kean, as well as a group of experienced mountain bikers. The participants ran through a series of four tests while our team recorded verbal feedback regarding our main specifications: thumb strength needed, attachment and detachment, comfortability, and safety. Our participants concluded that the device was able to meet all of the specifications and they gave suggestions as well. The report concludes with a discussion on the design process and recommendations to improve the final prototype. Overall, our product is successfully designed to enable the end user, Andrew Kean, to comfortably mountain bike without relying on the strength of his left thumb

    Team F16: Autonomous Research Plane

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    The autonomous research plane is a remote-controlled plane used for both in-flight data collection and to explore new manufacturing methods for Design Build Fly, an engineering club on campus. The club does not have the resources or time to implement data collection for their competition plane, so we built a plane in parallel, following similar rules to mimic the work and schedule that the club would use during their season. We first did research and analysis to determine the structure of the plane, geometry of wings, sizing of the tail, and what airfoil to choose. The manufacturing process included making an internal fuselage structure from carbon fiber tubes with ABS plastic joiners, with balsa spar and ribs for the wing and tail structure. The wing skin was made from 2- ply Kevlar and carbon fiber layup using prepreg composites. The first objective in researching more manufacturing methods concluded with the decision to make a composite plane. The second objective was to have the plane collect data from multiple sensors while flying. We chose to use a flight controller to handle many sensors needed for autonomous flight. The rest of the sensors were run with a separate data acquisition system using a microcontroller. The club had previously done testing on the ground, but no in-flight data collection. Our goal was to have 10 minutes of data collected in a flight, stored on an SD card for the club to use for research and analysis. This project taught the club and the students involved a lot about aircraft design, composites manufacturing, and analysis, culminating in recommendations and conclusions that conclude this document

    Smith Property Pre-Engineered Metal Barn

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    The Smith Residence Barn is a pre-engineered metal building designed to provide additional storage and workspace. The Architectural design was created by the Nunno Corporation, a San Luis Obispo based steel building general contractor. The soils report was created by Mid-Coast Geotechnical, INC. and the report’s conclusions were used for determining site conditions related to the foundation and lateral force system design. The structural calculations and plans were created by Trent Olmstead and reviewed by Brian Marc-Aurele, SE and Chris Murphy, SE. All calculations were done in accordance with the 2022 CBC, ASCE 7-16, 2023 AISC, ACI 318-19, and AISI S100-2013. The building is a steel structure utilizing both Cold-Formed Steel and Hot-Rolled Steel structural components. This report will cover the structural design and how the architectural design influenced the structural systems for the building. Also covered is how site conditions and design challenges effected the final design of the structure. The projects overall potential impact will also be covered, specifically the global, economic, political, environmental, and societal impacts

    Addressing Food Deserts in Underserved Communities Prepared for Mid-City, San Diego, CA

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    This senior project focuses on addressing food insecurity in the Mid-City region of San Diego, California, by proposing strategies to increase access to healthy, affordable food options. The two recommendations are to re-establish a community farmer\u27s market with city involvement and to establish a mobile produce market. These initiatives aim to bring fresh, nutritious food directly to underserved neighborhoods, promoting better health outcomes and community resilience. The recommendations are based on the past success of a community-run farmers\u27 market that had to be discontinued, as well as the demonstrated effectiveness of an existing mobile produce market run by a local nonprofit in increasing access to affordable produce in underserved areas, though with minimal coverage in Mid-City. By leveraging the City\u27s resources, expertise, and collaborative partnerships, these recommendations strive to increase affordable and equitable access to locally sourced produce, support local agriculture, and foster vibrant community spaces. The proposed approaches emphasize collaborative governance, strategic site selection, vendor recruitment, affordability strategies, community engagement, and sustainable funding models

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