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Articles 1501 - 1530 of 23542
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Sonifind: A Sonified Micro-Guidance Interface For The Visually Impaired, Lucas Li
Sonifind: A Sonified Micro-Guidance Interface For The Visually Impaired, Lucas Li
Master's Theses
We introduce Sonifind, a micro guidance system implemented on a smartphone that uniquely integrates computer vision and spatial audio intended to assist users who are visually impaired. Currently, micro guidance systems require head-mounted displays and various hardware, limiting their practicality for everyday use. Our system employs an off-the-shelf computer vision library and a smartphone to interpret the user's surroundings and provide intuitive spatial audio cues for real-time guidance. We conducted a between-subjects study with sighted, blindfolded participants to evaluate the learnability, performance, and user satisfaction of Sonifind using two different versions of the system to further inform our ongoing design …
The Effect Of Atomic Oxygen On Additively Manufactured Materials, Ryan Grogan
The Effect Of Atomic Oxygen On Additively Manufactured Materials, Ryan Grogan
Master's Theses
Additive manufacturing (AM) is a rapidly developing manufacturing method utilized in fields such as the aerospace industry. In-space AM is a technology of interest for the future of spaceflight, including on-orbit manufacturing. However, AM materials are subject to defects that may impact their performance in space-based applications. How these defects change the material’s reaction to the space environment, specifically atomic oxygen (AO), has only recently been explored. AO is a highly corrosive, dominant constituent in low Earth orbit that causes continuous erosion of spacecraft surfaces. The effect of AO on various AM materials is investigated in this thesis. Stainless steel, …
Contrastive Filtering And Dual-Objective Supervised Learning For Novel Class Discovery In Document-Level Relation Extraction, Nicholas Hansen
Contrastive Filtering And Dual-Objective Supervised Learning For Novel Class Discovery In Document-Level Relation Extraction, Nicholas Hansen
Master's Theses
Relation extraction (RE) is a task within natural language processing focused on the classification of relationships between entities in a given text. Primary applications of RE can be seen in various contexts such as knowledge graph construction and question answering systems. Traditional approaches to RE tend towards the prediction of relationships between exactly two entity mentions in small text snippets. However, with the introduction of datasets such as DocRED, research in this niche has progressed into examining RE at the document-level. Document-level relation extraction (DocRE) disrupts conventional approaches as it inherently introduces the possibility of multiple mentions of each unique …
Coolsplint: Inflammation Reduction Accessory, Laura C. Denney, Winston H. Giang, Aanchal Singh
Coolsplint: Inflammation Reduction Accessory, Laura C. Denney, Winston H. Giang, Aanchal Singh
Biomedical Engineering
This document outlines a project sponsored by Elizabeth Mentel and Michael Clausson that addresses the shortcomings in current splinting options, particularly for wrist fractures in elderly patients. Stakeholders include clinicians, patients, and emergency medical technicians. Multiple improvements can be made to current splinting options to help alleviate inflammation along with splint versatility, affordability, accessibility, and ease of use. After determining the critical customer requirements, the primary objective of this project was to find a way to manage inflammation. The project explores existing splinting solutions and proposes a new design that utilizes cooling rods to reduce inflammation. The document reviews various …
Building 21 Courtyard Barbecue Pit Demolition, Will Riviere
Building 21 Courtyard Barbecue Pit Demolition, Will Riviere
Construction Management
This project intended to demonstrate the process of a full-scope demolition project at a manageable scale. Almost sixteen yards of concrete were to be demolished, including all reinforcing structures within the barbecue. The purpose of this project was to clear space for the impending renovation of Building 21’s courtyard and remove the unsafe barbecue from the busy pedestrian pathway. Sledgehammers were used in conjunction with electric jackhammers to perform the demolition. Rebar from demolition was separated from the concrete and recycled separately from any cementitious materials. Careful attention was given to protecting existing brick beneath the structure, the surrounding area, …
The Challenges Of Building A Mass Timber Single-Family Home: A Case Study, Avery Emma Onan
The Challenges Of Building A Mass Timber Single-Family Home: A Case Study, Avery Emma Onan
Construction Management
This case study explores the various challenges faced by those involved in the pre-construction and construction of a mass timber, single-family home in Central Texas. Using semi-structured interviews, a subcontractor, an owner, a manufacturer, and two construction managers were questioned about their specific challenges with the build. These challenges were solely related to the use of mass timber on the project. In recent years in the United States, mass timber has become an increasingly desired building material to use in a commercial and multi-family residential context. Due to limited information and builder inexperience using mass timber in a single-family homebuilding …
Designing, Estimating, And Building A Deck And Overhang For The Paso Robles Police Department Shooting Range, Nicklaus Amil Zenner, Benjamin Henry Gallagher
Designing, Estimating, And Building A Deck And Overhang For The Paso Robles Police Department Shooting Range, Nicklaus Amil Zenner, Benjamin Henry Gallagher
Construction Management
This paper covers the design, estimating, and construction process by a team of students from Cal Poly to provide a deck and overhang for the Paso Robles Police Department Shooting Range. The project, initiated in the winter of 2024, aimed to provide a durable, functional, and aesthetically pleasing deck and overhang suitable for a barbecue and lounge area. The paper focuses on the design and estimation phases, as well as material procurement and construction. Through meetings with the client, the team developed a design that met the police department's criteria for functionality, durability, and cost. The design process involved collaboration …
San Luis Obispo High School Ffa Farm Chicken Coop Construction, Sofia A. Amalfitano
San Luis Obispo High School Ffa Farm Chicken Coop Construction, Sofia A. Amalfitano
Construction Management
This paper details the preconstruction and construction process accomplished by a team of California Polytechnic State University, San Luis Obispo Construction Management students during the construction of a new chicken coop for the San Luis Obispo High School’s FFA program. The project, initiated in the fall of 2023, aimed to replace the existing temporary coop to a larger, more functional structure capable of comfortably housing approximately a dozen chickens while ensuring their safety and well-being. While the primary focus of this paper revolves around the preconstruction and construction phases, it also touches upon the design phases, as these stages involved …
Skip The Grid: Navajo Nation Solar Power Project, Nathan Kealy Haub
Skip The Grid: Navajo Nation Solar Power Project, Nathan Kealy Haub
Construction Management
Skip the Grid, an initiative aimed at empowering communities in need was brought to life through the collaborative efforts of California Polytechnic State University San Luis Obispo (Cal Poly) students, industry partners like SOLV Energy, and the educational non-profit organization Heart of America (HOA). This project was a true testament to the power of teamwork and innovation. Our mission was to assist families of school-aged children in the Navajo Nation by providing them with solar energy systems, including batteries and lighting. We aimed to create a lasting impact by equipping these families with essential resources. In addition, we integrated educational …
Gateway Decathlon: Cost Estimation Of An Offsite Residential Construction Unit, Bradley Craig Blakemore Jr
Gateway Decathlon: Cost Estimation Of An Offsite Residential Construction Unit, Bradley Craig Blakemore Jr
Construction Management
This senior project focused on the cost of the materials used for the shell and structure of the Gateway Decathlon modular residential unit. Collectively, the group on the Gateway Decathlon project decided to design and build the structure using mass timber. A material takeoff of the building was performed, allowing for an accurate measurement of structural materials. After material selection, a final cost estimate was by multiplying the selected materials unit price by the total quantity of the material. The material cost estimate calculations were performed on the current Revit Model allowing for a full-scale analysis of the offsite building. …
A Case Study: Impacts Of A Building Retrofit On Employee Efficiency And Productivity, Rigo Zepeda
A Case Study: Impacts Of A Building Retrofit On Employee Efficiency And Productivity, Rigo Zepeda
Construction Management
This case study explores the effects of retrofitting building systems on operational efficiency and employee productivity in the contemporary office environment. As concerns over sustainability and the well-being of employees are now at the forefront of modern workplace design, the retrofitting of outmoded building systems has been seen as an option to enhance energy efficiency and occupant satisfaction. This research paper focuses on the recently retrofitted Performance Contracting office building in Benicia, California. As heating and ventilation systems, and lighting are two big contributors to energy consumption in buildings and comfort, analyzing these systems provided insight into its building performance. …
Skip The Grid: Solar Energy Concepts In Navajo Nation Schools, Dana M. Craighead
Skip The Grid: Solar Energy Concepts In Navajo Nation Schools, Dana M. Craighead
Construction Management
Skip the Grid is a non-profit initiative with a goal of providing solar power to homes with school-aged children in the Navajo Nation. California Polytechnic State University, San Luis Obispo (Cal Poly) partners with SOLV energy, and Heart of America (HOA) to provide approximately 30 homes each year with Goal Zero solar panels, and educate students in the surrounding areas about how solar energy can help power communities. This year, a group of 20 students from departments including Construction Management, Electrical Engineering, Environmental Management and Protection, Mechanical Engineering, and Graphic Communication joined the initiative and traveled to Shiprock, New Mexico …
Can Leadership Classes Help Women In Construction Embrace Vulnerability Early In Their Careers?, Crystal Giselle Martinez
Can Leadership Classes Help Women In Construction Embrace Vulnerability Early In Their Careers?, Crystal Giselle Martinez
Construction Management
This study investigates how a vulnerability lesson, integrated into a construction management university course, impacts women’s comfort levels in showing vulnerability in their early careers. It also examines the perceptions of individuals on the subject of vulnerability prior to taking the class expressing societal norms in relation to vulnerability and leadership in relation to vulnerability. Pre- and post-surveys, utilizing the Likert scale and free responses, were used to gather data from students enrolled in a leadership-focused class at California Polytechnic State University, San Luis Obispo. Findings reveal that while vulnerability is seen as vital for leadership, gender challenges persist, shaped …
Assessment Of Musculoskeletal Disorders (Msds) Risk During The Framing Of A 6' X 8' Wooden Shed Using Traditional Hammers, Maxwell R. Helfman
Assessment Of Musculoskeletal Disorders (Msds) Risk During The Framing Of A 6' X 8' Wooden Shed Using Traditional Hammers, Maxwell R. Helfman
Construction Management
Wood-framed construction will almost always use nails as a connector whether it be for different pieces of wall sections or connecting wall sections to the structure. Nails also act in Shear Walls in different nailing patterns to prevent the panel from splitting. Houses in modern times are usually nailed with nail guns, either with a cord or cordless, which reduces their exposure to Musculoskeletal disorders (MSDs). However, smaller jobs may opt to use traditional hammers instead of nail guns. This study aims to numerically quantify the forces and flexions one puts on the body when performing nailing tasks using a …
Skip The Grid: Pv System Installations In The Navajo Nation, Samuel Varney
Skip The Grid: Pv System Installations In The Navajo Nation, Samuel Varney
Construction Management
The Skip the Grid initiative is a collaborative effort between interdisciplinary California Polytechnic State University, San Luis Obispo students, SOLV Energy, and the non-profit organization Heart of America aiming to strengthen the quality of life for Navajo Nation families. Many of the Navajo Nation’s residents are not connected to the power grid and don’t have access to sustainable alternatives, and this project aims to combat this by installing photovoltaic energy panel systems with lights and a battery storage system in their homes. With the help and guidance of the Consolidated School District near Farmington New Mexico, the project team was …
Iron Filings Impact On The Compressive Strength Of Concrete, Dominic Daniel Aceves
Iron Filings Impact On The Compressive Strength Of Concrete, Dominic Daniel Aceves
Construction Management
In this study, compression tests were performed on three different mix designs of concrete to evaluate the effects of iron filings as an admixture to concrete. The first mix design served as the control mix, being the variable that the other two mixes will be based off. The second mix design was the same as the first mix design, but with an added 12 ounces of iron filings. The third mix design was, again, the same as the first mix design, but with an added 24 ounces of iron filings doubling that of the second mix design. The objective of …
Exploring The Role Of Construction Technology Copilots, James S. Thielmann Jr.
Exploring The Role Of Construction Technology Copilots, James S. Thielmann Jr.
Construction Management
In the rapidly evolving construction industry, the adoption of software solutions is essential for enhancing efficiency, reducing costs, and ensuring timely project delivery. This paper assesses the effectiveness and usefulness of existing construction software solutions, focusing on their functionalities, strengths, and limitations. Among the prominent solutions gaining traction are Trunk.Tools, Constructable.ai, and ProjectEngineer.ai. The construction industry, although historically slower to adopt new technologies, stands to gain a great deal from these tools in terms of project management and performance. This research includes a thorough examination of ProjectEngineer.ai's reach in the market, feature development, and growing uptake among experts in the …
Skip The Grid: Solar Panel And Battery Installations In Navajo Nation, Samir S. Ramanathan
Skip The Grid: Solar Panel And Battery Installations In Navajo Nation, Samir S. Ramanathan
Construction Management
Skip the Grid is a collaborative effort to bring off-grid power to communities that are isolated and experience inequalities, such as the Navajo Nation, in order to enhance their quality of life. This effort involved an interdisciplinary team of California Polytechnic State University, San Luis Obispo (Cal Poly) students, SOLV Energy, and Heart of America (HOA). Due to the vast nature of the reservation, lack of government focus in the region, and Covid’s severe damage to the community, a large number of homes of school age children do not have power. This project installed solar panels, battery systems, and lights …
Consumption And Waste For Hydrating Workers With Single Use Plastic Bottles, James Colnett
Consumption And Waste For Hydrating Workers With Single Use Plastic Bottles, James Colnett
Construction Management
The construction industry significantly contributes to environmental waste, notably through the extensive use of plastic water bottles for hydrating field personnel. This case study investigates the hydration practices of a midsize construction company in the Bay Area, focusing on the volume of plastic waste generated and potential sustainable alternatives. Data were collected via surveys sent to 15 employees, revealing that approximately 130,416 plastic bottles are used annually across 11 project sites. Despite the convenience and compliance with OSHA regulations, the reliance on single-use plastic bottles presents severe environmental and health concerns, such as resource depletion and microplastic pollution. Survey results …
Skip The Grid: Delivering Power To The Navajo Nation, William Jacob Bellios
Skip The Grid: Delivering Power To The Navajo Nation, William Jacob Bellios
Construction Management
Skip the Grid is a groundbreaking initiative designed to bring sustainable, off-grid power solutions to isolated communities facing significant challenges, such as the Navajo Nation. This collaborative effort involved an interdisciplinary team of California Polytechnic State University, San Luis Obispo (Cal Poly) SOLV Energy, and Heart of America (HOA). Due to the vast and dispersed nature of the reservation, a historical lack of government investment, and the severe impact of COVID-19 on the community, many homes are without electricity. This project aimed to address these issues by installing Goal Zero solar panels, battery systems, and lighting in 24 homes of …
Understanding The Behavior And Risk Tolerance Of Future Construction Industry Leaders, Mateo Daniel O'Sullivan
Understanding The Behavior And Risk Tolerance Of Future Construction Industry Leaders, Mateo Daniel O'Sullivan
Construction Management
A long persisting detriment to the construction industry is the impact of alcohol, substance abuse, and gambling throughout the field. Many workers fear the repercussions of missing work and push through smaller, manageable pain, leading to injuries and further pain as they age. This causes a heightened usage of opiates throughout the industry to stay at work without bothering your company. Additionally, many young project engineers are not used to the demand of long hours every week and look for vices to relieve stress. While there is plenty of data on the construction industry overall, this study aims to learn …
San Luis Obispo High School Ffa Swine Barn Demolition And Enclosure Reconfiguration, John F. Spurlock
San Luis Obispo High School Ffa Swine Barn Demolition And Enclosure Reconfiguration, John F. Spurlock
Construction Management
The San Luis Obispo High School (SLOHS) FFA program required an upgrade to its deteriorating swine barn. This project came in three unique scopes of work: demolition of the existing barn, proper disposal of materials, and reconfiguration of the enclosure and water lines. This paper will cover specifically the reconfiguration of the enclosures and the redesign of the watering system. This phase of the project required skills in framing and plumbing, which our team had absorbed during specific construction management courses at Cal Poly. The reconfiguration included framing and securing a long span of fencing along the northern side of …
Exploring Mass Timber And Mitek Posi-Strut System In Modern Construction, Matthew N. Maloney
Exploring Mass Timber And Mitek Posi-Strut System In Modern Construction, Matthew N. Maloney
Construction Management
This study evaluates the performance, cost-effectiveness, and constructability of two different truss systems by constructing identically sized mockup models. The comparison focuses on the top chord POSI-Strut Metal Web System and the bottom chord truss system, both utilizing Boise Cascade LVL engineered lumber. Our findings reveal that the top chord POSI structure truss system is more cost-effective and time-efficient compared to the bottom chord truss system. The top chord system's design reduces material costs and speeds up construction time, making it an attractive option for projects with tight budgets and schedules. However, the top chord POSI-Strut Metal Web System has …
The Future Of Fiberglass Rebar In Concrete Structures, Dillon Michael Elliott
The Future Of Fiberglass Rebar In Concrete Structures, Dillon Michael Elliott
Construction Management
In the working elements of the construction industry, the strive for materials that aim for strength, durability, and sustainability are never-ending. For traditional steel reinforcement this material faces inevitable challenges over time such as corrosion, weight of material, and environmental concerns. However with the emergence of fiberglass rebar, the negative impacts we see from traditional steel rebar may be resolved within the industry of construction. This paper aims to explore and propose a different alternative to reinforcement in concrete structures with the use and integration of fiberglass. The effectiveness which fiberglass as a reinforcement material offers will be investigated throughout …
Skip The Grid: Bringing Power To Navajo Nation Students, Colette Burd
Skip The Grid: Bringing Power To Navajo Nation Students, Colette Burd
Construction Management
Skip the Grid is an annual joint initiative facilitated by the non-profit Heart of America involving California Polytechnic State University, San Luis Obispo (Cal Poly) students and faculty, and SOLV Energy. The Skip the Grid project brings power and lighting to Navajo Nation families with school-age children by installing a self-contained solar battery system. Completed from March 24th through March 28th of 2024, this year the Skip the Grid project brought photovoltaic energy systems with solar panels, a battery, lights, and outlets to 24 homes, benefiting over 100 students in the Consolidated School District within the Navajo Nation. For the …
Evaluating Value Engineering Techniques Of California Contractors, Mason Alec Montoya
Evaluating Value Engineering Techniques Of California Contractors, Mason Alec Montoya
Construction Management
Value engineering plays a critical role in delivering the best possible project to an ownership team. Preconstruction teams across firms of all sizes perform value engineering studies to determine how project scopes can be changed to advance the construction schedule, reduce costs, and ensure the end user is satisfied with their building. To determine how California general contractors employ value engineering, I used a series of interview questions in a structured format to interview four professionals from different California general construction firms. The analysis and findings of my study provide insight into how familiar construction teams are with value engineering …
Son Care Foundation – Lean To Shade Structure Design And Construction, Ryan Joseph Mccann
Son Care Foundation – Lean To Shade Structure Design And Construction, Ryan Joseph Mccann
Construction Management
This paper discusses the design and construction of a lean-to-shade structure built for the Son Care Foundation in San Luis Obispo. The Son Care Foundation is a nonprofit organization that raises guide dogs for veterans and first responders with PTSD. This shade structure is 16 feet long and 6 feet wide, its height slopes from 9 feet in the front down to 8 feet in the back creating a roof pitch of 2:12. The sheet metal roof also has an overhang of approximately 1 foot. As requested by the client, the shade structure was designed to fit the aesthetic of …
Construction Wellness: Analyzing Mental Health Issues And Solutions For Construction Workers, Joshua Franks
Construction Wellness: Analyzing Mental Health Issues And Solutions For Construction Workers, Joshua Franks
Construction Management
The construction industry is known for its demanding nature, often leading to significant mental health challenges among its workforces. This study investigates mental health issues prevalent in construction, focusing on identifying key stressors and potential protective factors. A mixed-method approach was employed, combining a systematic literature review with a survey distributed to construction professionals. The survey gathered data on job satisfaction, stress, coping mechanisms, and the availability and utilization of mental health resources. Results indicated high levels of job dissatisfaction and stress, with respondents citing poor communication, excessive work hours, and lack of control over their roles as primary stressors. …
Heavy Civil Estimating Utilizing Hcss Heavybid, Quintan Matthew Davis
Heavy Civil Estimating Utilizing Hcss Heavybid, Quintan Matthew Davis
Construction Management
The estimate process is an essential aspect of the construction industry. Understanding how bids are formed and being able to create one for yourself is critical in being able to really understand cost breakdown of a construction process. This paper will focus around the process in creating a presentation for Cal Poly students, breaking down HCSS HeavyBid and its functions. This project was created to address this idea of attempting to teach HeavyBid to Cal Poly future young engineers. This was particularly important because young students learn how to be a great young engineer in the construction field, however not …
Electrical Design For Moringa Leaf Dryer, Jake Weiss
Electrical Design For Moringa Leaf Dryer, Jake Weiss
Construction Management
The objective of this project is to provide a methodology to the electrical scope of mechanical leaf dryers. This dryer was particularly designed for an off-grid farm in New Longoro, Ghana in which resources and materials are limited. The electrical system must be designed so that it works with motors, variable frequency drives, worm gears, and other materials that could be sourced in Ghana. The system should also draw minimal power so that remaining photovoltaic energy could be utilized on the farm. The system should be simplistic and repeatable for other farmers to utilize. By using both a numerical analysis …