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Articles 1861 - 1890 of 5311
Full-Text Articles in Engineering
Multi-Ton Bin Transport Device, Cole Kramer, Ruth Stirrup, Fabian Ruiz, Daniel Ramirez
Multi-Ton Bin Transport Device, Cole Kramer, Ruth Stirrup, Fabian Ruiz, Daniel Ramirez
Mechanical Engineering
This project sought to solve a problem at the Water Resource Recovery Facility in San Luis Obispo with the transportation of multi-ton bins on-site. Their current solutions prove ineffective, as they damage their equipment and the concrete pad, as well as pose major safety risks to the operators moving these bins. The Facility requires the bin transport design to be low-cost, effective, and without risk of damage to the bins or surroundings, while maintaining the integrity of the bins. This project presents a conceptual design that is similar to a scissor lift, integrated into a trailer which will connect to …
Elastic Actuator For Robotic Leg, Bruce Berg, Allan Pham, Madeline Slater, Sofie Zalatimo
Elastic Actuator For Robotic Leg, Bruce Berg, Allan Pham, Madeline Slater, Sofie Zalatimo
Mechanical Engineering
The Cal Poly Legged Robots Group (CPLRG) is developing a 12 degree of freedom robot with the goal of eventually performing highly dynamic movements such as jumps and flips. During such movements, large impact forces will be experienced by the leg, potentially resulting in damage to physical components such as the motors. The scope of this project is to integrate elastic elements into the quadruped legs to reduce shock loads on the motors and improve the efficiency of the legs through energy storage. The key stakeholders for this project are Professor Charlie Refvem and Dr. Simon Xing. Other stakeholders include …
2–4 Ghz Reconfigurable Rf Filters, Jason Corn, Roman Junes
2–4 Ghz Reconfigurable Rf Filters, Jason Corn, Roman Junes
Electrical and Computer Engineering Senior Theses
Wireless communication systems employ radio frequency (RF) filters to isolate desired signals while suppressing interference and noise. Conventional RF filters rely on fixed-frequency architectures that restrict system operation in increasingly dynamic communication environments. This project features the design and optimization of a reconfigurable RF filter prototype using coupled microstrip resonators and electronic tuning components. The filter design demonstrates a tunable range of 2−4 GHz. Future design of reconfigurable microstrip architectures must take steps to maintain signal integrity across active elements. Power loss may be mitigated through the selection of higher quality factor components and less lossy prototyping materials.
Thermodynamic Modeling Of Ph Impacts On Subsurface Microbial Consortia, Jackfin K C
Thermodynamic Modeling Of Ph Impacts On Subsurface Microbial Consortia, Jackfin K C
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
Underground hydrogen storage is affected by microbial consumption, and the different minerals present in the subsurface. However, most studies consider either biotic or abiotic factors in isolation and hence, the conditions that drive a self-sustaining storage remain poorly understood. This thesis uses a genome-informed thermodynamic model developed by Kharel et al. (2026) in which pH is the central variable coupling hydrogenotrophic microbial metabolism, inter-species competition, and carbonate mineral buffering. The model includes four hydrogen-consuming species: methanogen (Methanobacterium), acetogen (Acetoanaerobium), aerobic acetate oxidizer (Pseudomonas stutzeri), and sulfate reducer (Nitratidesulfovibrio) by conditioning each organism's …
Computational Modeling To Evaluate Bipolar Flexible Electrode Designs For Use In Sciatic Nerve Stimulation, Krystyna S. Allman
Computational Modeling To Evaluate Bipolar Flexible Electrode Designs For Use In Sciatic Nerve Stimulation, Krystyna S. Allman
Master's Theses
Peripheral nerve stimulation is clinically used to manage pain, rehabilitate motor function, and promote nerve regeneration. The sciatic nerve is often studied for stimulation due to its accessibility and clinical relevance. A conventional nerve cuff electrode is the least invasive method for nerve stimulation, but the mismatch of mechanical properties of the electrode with the nerve tissue can cause damage to the nerve and the electrode itself. This study investigated a novel bipolar, gold nanowire-based cuff electrode design and its ability to selectively activate fibers in the rat sciatic nerve at varying interelectrode spacings. In COMSOL, A finite element model …
Skip The Grid: Bringing Photovoltaic Energy To The Navajo And Hopi Nations, Emily Edmondson
Skip The Grid: Bringing Photovoltaic Energy To The Navajo And Hopi Nations, Emily Edmondson
Construction Management
Skip the Grid is an interdisciplinary service-learning initiative that provides off-grid solar energy systems to households within the Navajo and Hopi Nations that lack access to electricity. In March 2026, students from five academic disciplines at California Polytechnic State University partnered with industry professionals and community organizations to complete the fifth annual installation trip. The project's purpose was to improve quality of life by providing reliable access to lighting, refrigeration, and small-scale electrical power in underserved communities where traditional grid expansion is extremely costly. Preparation for the project included fundraising, procurement, technical training, and coordination among multiple stakeholders. Participants were …
2026 Annual V.E.S.T Hackathon: Improving Gender Inclusivity Of Glove Fitting, Makena E. Fix
2026 Annual V.E.S.T Hackathon: Improving Gender Inclusivity Of Glove Fitting, Makena E. Fix
Construction Management
Safety gloves are an essential part of field personnel's personal protective equipment (PPE). Gloves protect against cuts, burns, chemicals, and other hazards. Properly fitting gloves reduce the risk of injury by enabling the suitable use of task-specific protection. The 2026 Verifying Everyone’s Safety Together (V.E.S.T) Hackathon was hosted to identify ways in which gloves fit workers differently, and evaluated six different glove types, ranging from woven cut rated to firefighting gloves. To understand experiences faced by workers with their PPE, firefighters were interviewed and discussions were held at the Hackathon. The collaborative event brought industry members and students together to …
Skip The Grid: Bringing Renewable Energy To Off-Grid Navajo Homes, Zion Hall
Skip The Grid: Bringing Renewable Energy To Off-Grid Navajo Homes, Zion Hall
Construction Management
Skip the Grid is an interdisciplinary service-learning project that provides sustainable energy solutions to families with school-aged children living in the Navajo and Hopi Nations. In March 2026, a team of 23 students from five academic disciplines at California Polytechnic State University (Cal Poly) partnered with Heart of America, SOLV Energy, and NextPower to complete the fifth year of the program. The project's purpose was to improve quality of life and support educational success by providing reliable access to electricity, lighting, and refrigeration in underserved communities. Participants were organized into five installation teams consisting of Cal Poly students, faculty, industry …
International Construction In El Salvador, Daniel Roberts
International Construction In El Salvador, Daniel Roberts
Construction Management
My senior project focused on participating in international construction operations in El Salvador through hands-on involvement in the construction of a steel warehouse facility and a small residential home. The project emphasized structural concrete placement, field coordination, construction sequencing, and adaptation to regional construction practices. Work included assisting with concrete foundations, slab preparation, reinforcing steel placement, masonry work, and general site coordination activities. The experience provided practical exposure to labor productivity, material availability, scheduling challenges, and construction methods commonly used in developing regions. The project also highlighted the importance of communication, problem-solving, and flexibility when working in an international construction …
Economic Feasibility Of 3d-Printed Concrete Walls Vs. Traditional Framing Systems, David Hawk
Economic Feasibility Of 3d-Printed Concrete Walls Vs. Traditional Framing Systems, David Hawk
Construction Management
The construction industry faces mounting pressure to adopt more efficient building technologies. 3D-printed concrete (3DCP) has emerged as a promising alternative to wood-frame wall systems, offering reduced labor costs, shorter schedules, and lower long-term maintenance expenses. This study evaluates the economic feasibility of 3DCP versus traditional framing across three project scales — single-family (2K SF), multifamily (20K SF), and large development (100K SF) — using mixed-methods combining quantitative cost data with qualitative industry interviews. Results indicate 3DCP becomes cost-competitive at approximately 20,000 SF of wall area, with a decisive advantage at 100K+ SF ($26–$34/SF vs. $29–$45/SF traditional). Equipment mobilization ($8–$18/SF) …
Skip The Grid: Bringing Solar Energy To The Navajo Nation, Makaela L. Zavala
Skip The Grid: Bringing Solar Energy To The Navajo Nation, Makaela L. Zavala
Construction Management
Skip the Grid is an interdisciplinary service project in which California Polytechnic State University (Cal Poly) students partner with Heart of America and SOLV Energy to install off-grid solar systems for families in the Navajo Nation and Hopi Reservation. The project aims to address energy inequity by providing reliable electricity for lighting, refrigeration, and essential daily needs. This paper focuses on the communications and logistics planning required to support a large-scale service project involving over twenty students and multiple partner organizations. The methodology included coordinating travel, organizing team assignments, managing documentation, and maintaining communication throughout the trip. The project resulted …
City Farm Slo Sheep Pen Improvements, Oscar Rocha
City Farm Slo Sheep Pen Improvements, Oscar Rocha
Construction Management
City Farm SLO is a non-profit that focuses on educating under-served and at-risk youth on health, success, and environmental responsibilities. The organization’s mission is accomplished while connecting many people from different backgrounds, which include diverse ethnic, racial, and socio-economic backgrounds. City Farm SLO promotes hands-on learning, providing opportunities for Cal Poly Construction Management students to build on the farm. This senior project consists of the construction of a 50 cubic yards sheep hill, vehicle access gates, side entry gate, front catch pen, and back corral fencing. Outside of the field construction, there was extensive planning to coordinate with the farm’s …
The Effect Of Music On Construction Labor Productivity, Ayush Khare
The Effect Of Music On Construction Labor Productivity, Ayush Khare
Construction Management
Every day the construction industry is looking for ways to improve labor productivity, jobsite morale, and overall project efficiency. Contractors often focus on larger strategies such as scheduling, manpower planning, equipment selection, and material coordination to help projects stay on time and within budget. However, smaller jobsite conditions can also affect how workers perform throughout the day. Music is one of these conditions. On many construction sites, music is already used informally by laborers while they complete physical and repetitive tasks. Even though music is common in construction culture, its effect on productivity and morale is not often measured or …
Sheep Pen Improvements At City Farm Slo, Diego Eliseo Romero
Sheep Pen Improvements At City Farm Slo, Diego Eliseo Romero
Construction Management
City Farm SLO is a non-profit educational farm that focuses on creating clean produce and educational farm work environments in San Luis Obispo, California. The farm can provide its community with learning programs for the youth, hands-on experience in farming practices, and livestock care. The work was set out for this project across two quarters where we improved the existing sheep pen so that the volunteers and livestock who use the pen can enjoy the area much more comfortably and safely. The overall project scope included several improvements which all required initial designs, coordination with the farm and its volunteers, …
How Modular Construction Techniques Can Be Beneficial To The Nuclear Construction Industry, Samuel Lawrence Maurer
How Modular Construction Techniques Can Be Beneficial To The Nuclear Construction Industry, Samuel Lawrence Maurer
Construction Management
Nuclear energy will soon be needed to supply sustainable and clean power to companies that work with Artificial Intelligence and Quantum Computing. Across the world, lots of large-scale nuclear power plants that have been recently constructed have had many issues, such as cost overruns, schedule delays, permitting issues, and more. The purpose of this project is to examine how modular construction, specifically in the form of Small Modular Reactors (SMRs), can positively impact the nuclear construction industry and potentially reduce some of the common issues that these large-scale nuclear power plant projects typically face. The findings suggest that the use …
Skip The Grid: Installing Solar Systems In The Navajo Nation, Joey Massey
Skip The Grid: Installing Solar Systems In The Navajo Nation, Joey Massey
Construction Management
Skip the Grid is a student led interdisciplinary project that aims to bring sustainable solar energy to families in the Navajo Nation who lack reliable power at home. The 2026 Skip the Grid trip was the fifth consecutive year of the joint effort between California Polytechnic State University (Cal Poly) students across multiple departments, Heart of America (HOA), SOLV Energy, and Nextpower. Over the three working days the 5 teams installed Goal Zero Solar Systems in 50 homes on both the Navajo Nation and Hopi Reservation. These systems brough power, light, and refrigeration to families, enhancing their quality of life …
The Efficiency Of Residential Modular Construction, Alina Viola Dziuk
The Efficiency Of Residential Modular Construction, Alina Viola Dziuk
Construction Management
This study examines the efficiency of permanent modular construction in the residential multifamily sector framed with steel in the western United States, with a particular focus on labor productivity, materials, project scheduling, and cost performance in California. Research was conducted through five interviews with production managers from U.S.-based modular manufacturing companies. Results indicated that modular construction improves labor, material, time, and cost efficiency. Overall, the qualitative data gathered from interviews and the literature review suggest that modular construction offers a practical solution to California’s housing shortages, declining labor pool, and rising construction costs while improving overall project efficiency and productivity. …
The Use Of Modular Construction To Improve Schedule Efficiency, Brandon Ritchie
The Use Of Modular Construction To Improve Schedule Efficiency, Brandon Ritchie
Construction Management
The construction industry continues to face growing pressure to deliver projects on tighter schedules with fewer resources. Modular construction has emerged as a delivery method with the potential to improve schedule efficiency by allowing off site fabrication and on site work to occur simultaneously. This research examines how modular construction affects schedule performance compared to traditional construction methods. When modular construction is well coordinated, project schedules will show improved efficiency compared to traditionally built projects. Qualitative interviews were conducted with members of the Whiting Turner team on the Cal Poly Student Housing Project, backed up by a review of schedule …
Sheep Pen Improvements At City Farm Slo, Rylan Joseph Hickman
Sheep Pen Improvements At City Farm Slo, Rylan Joseph Hickman
Construction Management
This project took place on a non-profit community farming space called City Farm SLO which provides opportunities for local small scale independent farmers to farm and provide crops to the community. Our project provided improvements to the livestock pen that they have on the farm which is home to chickens and a flock of sheep. The main goal of this project was to provide a better living environment for the sheep including a 50 cubic yard sheep hill, a vehicle access gate, a side gate, a front catch pen, a back corral, and protective fencing for a guava tree. Within …
Hvac Ductwork Lab Series - New Curriculum, Dean Cavanna
Hvac Ductwork Lab Series - New Curriculum, Dean Cavanna
Construction Management
This senior project developed an HVAC Ductwork Lab Series to support Cal Poly Construction Management’s new mechanical coursework during the semester conversion. The main goal is to connect classroom instruction with practical fieldwork. The project addresses the need for applied learning materials that help students understand how duct design, fabrication, installation, and support affect system performance. The curriculum was created through a sequence of planning, model development, video-supported instruction, student handout design, and instructor guide preparation. The final lab series includes three activities: SimScale airflow modeling of a straight duct, direct 90-degree elbow, and curved 90-degree elbow; fabrication and connection …
Thematic Analysis Of Knowledge, Skills, And Abilities Required For Hydrogen Fuel Cell Transit Workforce, Steven Dandurand
Thematic Analysis Of Knowledge, Skills, And Abilities Required For Hydrogen Fuel Cell Transit Workforce, Steven Dandurand
Construction Management
The adoption and implementation of hydrogen fuel cell electric buses (FCEBs) in public transit creates opportunities for reducing emissions and a greener future, but causes challenges related to workforce readiness and training. This research uses thematic analysis to analyze interviews with professionals to evaluate the current knowledge and skill levels of transit bus drivers, maintenance personnel, and infrastructure teams, with the goal of identifying knowledge gaps that may cause problems with the implementation of hydrogen buses on a larger scale. Data was collected through a review of transit agency resources, and interviews with drivers, technicians and agencies. The findings indicate …
Designing And Building Benches For Slo City Farm, Julian Cervantes
Designing And Building Benches For Slo City Farm, Julian Cervantes
Construction Management
The purpose of this project was to design and create multiple small benches for the City Farm SLO during the term of Spring 2026 quarter. This project was specifically intended to be an affordable, pragmatic, and durable project that would last a long time in order to serve the people that visit a comfortable place to sit and come together. In order to achieve the project delivery for these benches the pre-construction of the project started by visiting the city farm to inspect the existing benches and taking the measurements of them in order to shorten them for the use …
Ada Concrete Walkway Improvements At The Gala Pride And Diversity Center, Jonathan A. Mintz, Manuel Gonzalez
Ada Concrete Walkway Improvements At The Gala Pride And Diversity Center, Jonathan A. Mintz, Manuel Gonzalez
Construction Management
This paper presents the planning, design, and construction of an accessible concrete walkway completed for the GALA Pride and Diversity Center in San Luis Obispo, California. The project addressed an accessibility gap between the center's front entrance and rear parking lot through a combination of site preparation, concrete work, retaining wall construction, and supporting improvements. Construction was managed around the active events schedule while staying within the constraints of a nonprofit budget. Challenges encountered during the project included scope changes, material selection decisions, and client coordination. The completed walkway provides a safe and stable path for all visitors and directly …
Modular Student Housing At California Polytechnic State University, San Luis Obispo: A Case Study On Efficiency And Implementation, Michelle Lara
Modular Student Housing At California Polytechnic State University, San Luis Obispo: A Case Study On Efficiency And Implementation, Michelle Lara
Construction Management
As universities continue searching for ways to deliver student housing more efficiently, volumetric modular construction has emerged as a potential alternative to traditional construction methods. However, there is limited documentation on how modular student housing projects are implemented on active California State University campuses. This study examines the implementation of volumetric modular construction on the California Polytechnic State University Student Housing Project through a qualitative case study approach. Data was collected through interviews with project personnel involved in construction management, project engineering, and fire and life safety compliance, along with a review of existing literature. While the project demonstrated several …
Skip The Grid: Bringing Power To The Navajo And Hopi Nation, Benjamin R. Narciso
Skip The Grid: Bringing Power To The Navajo And Hopi Nation, Benjamin R. Narciso
Construction Management
Skip the Grid is an interdisciplinary service-learning project that provides sustainable energy solutions to families with school-aged children living in the Navajo and Hopi Nations. In March 2026, a team of 23 students from five academic disciplines at California Polytechnic State University (Cal Poly) partnered with Heart of America, SOLV Energy, and NextPower to complete the program's fifth year. The project's purpose was to improve the quality of life and support educational success by providing reliable access to electricity, lighting, and refrigeration in underserved communities. Participants were organized into five installation teams consisting of Cal Poly students, faculty, industry partners, …
Beyond Contract Law: Expanding Legal Education In Construction Management, Grace M. Hetland
Beyond Contract Law: Expanding Legal Education In Construction Management, Grace M. Hetland
Construction Management
The California Polytechnic State University Construction Management (CM) program is designed to prepare students for the managerial responsibilities of the construction industry. However, construction projects involve a broad range of legal considerations that extend beyond traditional contract administration. While the CM curriculum currently includes a course focused on construction contract law, there is limited exposure to other legal disciplines that frequently affect construction professionals throughout the project lifecycle. This research explores the potential value of expanding construction law education in the CM curriculum by implementing an additional topics course as an elective for students. To determine which legal subjects would …
Robotic Layout Systems In Construction: Evaluating Accuracy And Efficiency In Blueprint Marking, Saxon Moseman
Robotic Layout Systems In Construction: Evaluating Accuracy And Efficiency In Blueprint Marking, Saxon Moseman
Construction Management
Robotic layout systems represent a significant advancement in construction technology, automating the transfer of Building Information Modeling (BIM) coordinates onto construction surfaces to improve accuracy and efficiency. This study evaluates the implementation of robotic layout systems, specifically the Dusty Robotics FieldPrinter, and their effectiveness in improving accuracy and efficiency during construction blueprint marking. Through a review of existing literature, analysis of the Skanska and Sutter Health healthcare case study, and qualitative interviews with three construction professionals, the research examines impacts on productivity, labor requirements, trade coordination, BIM integration, and project quality. Findings consistently demonstrate that robotic layout systems reduce layout …
Skip The Grid: Bringing Power To Navajo Nation Through Off-Grid Solar Systems, Maggie Papaharisi
Skip The Grid: Bringing Power To Navajo Nation Through Off-Grid Solar Systems, Maggie Papaharisi
Construction Management
Skip the Grid is an interdisciplinary service-learning project where California Polytechnic State University (Cal Poly) students partner with Heart of America and SOLV Energy to install off-grid solar systems for families in the Navajo Nation who do not have reliable access to electricity. Due to the remote location and high cost of infrastructure, a significant portion of households lack basic utilities, making access to lighting, refrigeration, and power difficult. During the 2026 project, a team of students from multiple disciplines spent several months preparing before traveling to Arizona, where installation teams completed solar systems in 50 homes over three days. …
Skip The Grid: Powering The Navajo And Hopi Reservations, Casey A. Nuti
Skip The Grid: Powering The Navajo And Hopi Reservations, Casey A. Nuti
Construction Management
Skip the Grid is an interdisciplinary service project targeted at providing essential off-grid power to families of the Navajo and surrounding sovereign nations. This year a group of twenty-three students and four faculty from California Polytechnic State University (Cal Poly) helped plan and execute the insulation of solar power and other essential amenities on the Navajo and Hopi reservations. Many families that live on the reservation are below the U.S. poverty line and obtaining grid power can be extremely difficult given the rigorous permitting requirements as well as the remote location of many of their homes. This service project is …
Solar Charging Station For Construction Gang Boxes, Scott J. Burfield
Solar Charging Station For Construction Gang Boxes, Scott J. Burfield
Construction Management
This senior project explores the feasibility of a solar-powered charging system that attaches to the top of a construction gang box or knack box. The purpose of the project is to provide a cleaner and more convenient way to charge tool batteries and small devices on construction sites. Adding on, it will reduce reliance on generators, extension cords, and temporary power setups by being supplemental support. Research included interviews with construction electricians, product selection, cost estimating, energy calculations, and an evaluation of constructability and project risks. The proposed design uses a 100-watt solar panel, a portable power station, and a …