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2021

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Full-Text Articles in Engineering

Summer Construction Bootcamp Building Activities, Ashley Leeann Isla Dec 2021

Summer Construction Bootcamp Building Activities, Ashley Leeann Isla

Construction Management

This paper outlines the trade-specific building activities that will take place at Cal Poly’s Summer Construction Bootcamp in Summer, 2022. The four construction trades that will be highlighted at the camp are concrete, carpentry, sheet metal, and plumbing. During each day, campers will build a small project that aligns with each highlighted construction trade. During the concrete day, campers will create stepping stones and perform a cylinder break test; during carpentry, campers will compete in a wall framing exercise; for sheet metal, campers will construct sheet metal roses; and for plumbing, they will make copper pipe “CPs.” This paper describes …

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Analysis Of Self-Consolidating Concrete In Architectural Shear Wall Applications: Case Study, Peter Finocchio Dec 2021

Analysis Of Self-Consolidating Concrete In Architectural Shear Wall Applications: Case Study, Peter Finocchio

Construction Management

Architectural concrete surfaces have always been a point of focus for concrete contractors, architects, and owners, especially when consolidation poses risks due to a high density of reinforcement. Contractors have begun using self-consolidating concrete (SCC) in exposed vertical applications to combat the risk of poor consolidation. This paper investigates the characteristics of SCC and evaluates a case study of a recent project that was completed on the Central Coast of California. The study examines the cost variance between using SCC mix and a standard mix in architectural shear walls. The analysis is done by evaluating a multi-story Type 1A structure …

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Reimagining The Construction Vest Through The Facilitation Of A Hackathon, Cole Bernabei Dec 2021

Reimagining The Construction Vest Through The Facilitation Of A Hackathon, Cole Bernabei

Construction Management

This paper outlines the organizational process prior to hosting a Hackathon event in the upcoming year. When the event happens, it will be held in the Simpson Strong-Tie Building on California Polytechnic State University’s Campus. Data from a previous study shows that many individuals feel the current construction vest is flawed; the fit as currently designed is unfit for women. To resolve this, this paper will identify how a Hackathon can help produce a new prototype for the standard construction vest, while also highlighting the steps taken to develop a sound logistics plan and a financial breakdown for the event. …

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Son Care Handicap Ramp And Fence, Brendan T. Mulholland Dec 2021

Son Care Handicap Ramp And Fence, Brendan T. Mulholland

Construction Management

The purpose of this project was to build a fence on one side of the parking lot and a handicap entrance ramp for the front entrance of the Son Care Foundation in San Luis Obispo, California. This project aims to help limit the edge of the parking lot so that cars are not parked to far into the neighboring field and to make the front office more accessible to customers. The parking lot for The Son Care Foundation is located next to a field that is used for a multitude of tasks. With nothing to separate the two areas from …

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San Luis Obispo Botanical Garden Amphitheater Benches - The Design, Devon Barthmaier Dec 2021

San Luis Obispo Botanical Garden Amphitheater Benches - The Design, Devon Barthmaier

Construction Management

This paper will outline the process of designing, building, and installing ten concrete benches at the San Luis Obispo Botanical Gardens with an emphasis on the design phase. The San Luis Obispo Botanical Gardens is home to an amphitheater that is used for event spaces. The goal of the project was to create a design to seat approximately forty people facing the stage. The project group consisted of six students broken into two teams, a pre-construction team and a construction team. The preconstruction team focused on designing the benches and procuring the materials while the construction team focused on the …

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Campus Improvement Cm460 Manual To Improve Project Based Success, John C. Palmer Dec 2021

Campus Improvement Cm460 Manual To Improve Project Based Success, John C. Palmer

Construction Management

This Senior project research will critically assess the process for campus improvement on the Cal Poly Campus. The purpose of this research is providing a final deliverable that is a usable document for future students with the intention of creating a campus improvement project. The project includes the necessary resources such as campus facility contacts, permitting process explanation, the documentation process for preconstruction, funding opportunities and the expected delays to create a realistic plan. The document is created as a manual for Construction Management undergraduates in hopes of encouraging future students to create a project-based campus-improvement plan that is more …

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The Benefits Of Utilizing Qr Codes On Construction Jobsites To Conduct Punch, Jack Richard Stryker Dec 2021

The Benefits Of Utilizing Qr Codes On Construction Jobsites To Conduct Punch, Jack Richard Stryker

Construction Management

The punch process of construction is an important task that a construction project team is faced with before a project reaches final completion. A punch list documents and tracks items that need to be corrected, repaired, or are incomplete. If not closely managed, open punch items can drag out the completion of a project, and is often seen as a tedious task for project engineers. The industry has not seen much change as to how this process is conducted until recent advancements in construction software. This paper will take a deeper look into the benefits seen from utilizing Procore’s location-based …

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Exploring The Relationships Between Gpa, Gender, Internship Participation, And Familial Influence In Salary And Salary Growth Of Construction Management Alumni, Kyra Leigh Glaus Dec 2021

Exploring The Relationships Between Gpa, Gender, Internship Participation, And Familial Influence In Salary And Salary Growth Of Construction Management Alumni, Kyra Leigh Glaus

Construction Management

College students seek to make themselves desirable to employers upon graduation, and employers use subjective and objective information to determine the best applicants. This study aims to survey the factors of college GPA, gender, internship experience, and familial influence and independently explore their relationship to career success as measured by starting salary and salary growth. A convenience sample was collected from construction management graduates from California Polytechnic State University, San Luis Obispo. The data for this sample found higher starting salaries for respondents who reported having higher GPAs, being female, having completed more internships, and who had an immediate family …

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Attractive Features For San Luis Obispo's Collegiate Rental Market, Ava Bednarek Dec 2021

Attractive Features For San Luis Obispo's Collegiate Rental Market, Ava Bednarek

Construction Management

The purpose of this study is to analyze what college students would like to see in their rental units and would potentially pay more for if they had the option. It attempts to identify key features that would make valuable investments for rental unit owners. Data collection consisted of an anonymous online survey. Student respondents in the construction management major at California Polytechnic State University were asked questions regarding their current rental housing unit conditions and monthly rental costs. In addition, respondents were asked to further analyze the importance of a set list of features that could be added to …

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Modular Interior Partitions In Commercial Housing: A Case Study, Adam David Meleo Dec 2021

Modular Interior Partitions In Commercial Housing: A Case Study, Adam David Meleo

Construction Management

The ability to modify an interior space with ease and reasonable cost is beneficial to designers, owners, and end-users. Modular interiors are not a new concept. Modular interior partitions can come in the form of Japanese Shoji screens, as well as folding walls that would be found in a convention center. While not new in concept, the market for products that allow partitioning an interior space with ease appears to be growing with the introduction of innovative products and solutions. This paper will focus on two student housing projects in San Luis Obispo, California, with regards to their design and …

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Caed Support Shop Concrete Slab, Nathan Horst, Steven Zheng Dec 2021

Caed Support Shop Concrete Slab, Nathan Horst, Steven Zheng

Construction Management

This senior project paper will explore the history, background, process, and challenges encountered while constructing a dream project for the Cal Poly CAED Support Shop during the Summer of 2021. From the initial site survey, through the design and permitting process and the physical construction, this project truly encapsulated the “learn-by-doing” philosophy. The project was successful in constructing a final product that enables ADA wheelchair access, creates more useable project work area, as well as addresses drainage issues and provides underground electrical conduits for future electrical upgrades.

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Effect Of The Melt Pool Boundary Network On The Anisotropic Mechanical Properties Of Selective Laser Melted 304l, Myranda Spratt, Joseph William Newkirk, Okanmisope Fashanu, K. Chandrashekhara Dec 2021

Effect Of The Melt Pool Boundary Network On The Anisotropic Mechanical Properties Of Selective Laser Melted 304l, Myranda Spratt, Joseph William Newkirk, Okanmisope Fashanu, K. Chandrashekhara

Materials Science and Engineering Faculty Research & Creative Works

Anisotropic mechanical properties are a well-known issue in selective laser melted parts. The microstructure produced by selective laser melting (SLM) is directional, including the solidified melt pool structures and grains. This work investigates the melt pool boundary's effects on 304L stainless steel's compressive properties. 304L stainless steel solid cylinders were built using a pulse laser SLM machine in four directions using three hatch angle rotations: 0⁰, 67⁰, and 105⁰ . The twelve samples were compression tested, and the results were analyzed. Numerical models were also created with the different hatch angles and directions. The melt pool boundary network (MPBN) in …

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Development Of A Conceptual Design, Estimate, & Schedule For Cal Poly Track & Field Hurdle Shed, Jonathan Chagnon Dec 2021

Development Of A Conceptual Design, Estimate, & Schedule For Cal Poly Track & Field Hurdle Shed, Jonathan Chagnon

Construction Management

This paper details the processes completed to produce the conceptual design, estimate, and schedule for a track and field hurdle shed at the Cal Poly Track facility. The main objective for this project was to create a conceptual idea for the track team that would make use of the current open space at the facility and create more storage space for current and future equipment obtained by the program. By completing this project, the track team would be able to receive a design that would allow them to push the concept forward as possible, an estimate that would give the …

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Hybrid: The Future Of Construction Meetings In The Digital Age, Nicholas G. Orozco Dec 2021

Hybrid: The Future Of Construction Meetings In The Digital Age, Nicholas G. Orozco

Construction Management

Over the last few years, many construction companies have had to upheave traditional methods of construction meetings to adapt to rapidly changing COVID-19 safety and regulation protocols. For many, this has meant taking common in-person meetings (OAC, pre-construction, and design) and shifting them virtual. As companies continue to move forward in a post-pandemic climate, the question of whether they will continue with virtual meetings or revert to in-person meetings still lingers in the air. To get a better read on the future of construction meetings post-pandemic, a survey was sent to determine what most people prefer. A total of 21 …

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Protecting The Caed Shop Equipment Yard, Chloe K. Stevens Dec 2021

Protecting The Caed Shop Equipment Yard, Chloe K. Stevens

Construction Management

Anytime a construction project is considered, there is a lengthy process that happens before breaking ground. It is important to consider the environment around the project, the intended purpose and use of the space, and the materials, time, and budget needed to develop it. If you do not take these things into consideration correctly, it will negatively impact the functionality and the efficiency of both the use and the construction process. This project consists of creating a pre-construction plan for building out a weather protective and space efficient enclosure at the College of Architectural and Environmental Design Shop Yard. The …

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Coal Moisture Variations In Response To Rainfall Event In Mines And Coal-Fired Power Plant Stockpiles—Part 1: Runoff, Infiltration, And Drainage, Quentin Peter Campbell, Marco Le Roux, Fardis Nakhaei Dec 2021

Coal Moisture Variations In Response To Rainfall Event In Mines And Coal-Fired Power Plant Stockpiles—Part 1: Runoff, Infiltration, And Drainage, Quentin Peter Campbell, Marco Le Roux, Fardis Nakhaei

Mining Engineering Faculty Research & Creative Works

Excessive coal moisture leads to a lower heating value and power plant efficiency, and increased transportation costs. Therefore, coal stockpile management and moisture control are particularly important in regions with heavy precipitation. This paper and Part 2 address factors influencing moisture retention and migration in coal stockpiles. Part 1 of this paper series simulates phenomena of runoff, infiltration, and drainage in a stockpile after a rainfall event. Part 2 reports the effect of coal particle size and climate conditions on the rate and depth of moisture evaporation process within a coal stockpile. To perform this study, two coal samples were …

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Coal Moisture Variations In Response To Rainfall Events In Mine And Coal-Fired Power Plant Stockpiles—Part 2: Evaporation, Quentin Peter Campbell, Marco Le Roux, Fardis Nakhaei Dec 2021

Coal Moisture Variations In Response To Rainfall Events In Mine And Coal-Fired Power Plant Stockpiles—Part 2: Evaporation, Quentin Peter Campbell, Marco Le Roux, Fardis Nakhaei

Mining Engineering Faculty Research & Creative Works

Additional moisture added in coal stockpiles due to rain and other climatic processes causes a significant problem worldwide, which leads to not only decrease in the heating value of the coal but also creates an extra efficiency penalty. Therefore, it is important to make some predictions for control of coal moisture within stockpiles after the rainfall. When the rain falls on the stockpile, it either runs off the surface or infiltrates the stockpile. The infiltrated water may evaporate from the surface, drain or stay within the stockpile. The aims of this study (parts 1 and 2) are to describe and …

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Protection And Disturbance Mitigation Of Next Generation Shipboard Power Systems, Marounfa Djibo Dec 2021

Protection And Disturbance Mitigation Of Next Generation Shipboard Power Systems, Marounfa Djibo

Electrical & Computer Engineering Theses & Dissertations

Today, thanks to modern advances mainly in the power electronics field, megawatt-level electric drives and magnetic levitation are being integrated into the marine power grids. These technologies operate based on Direct Current (DC) power which require Alternating Current (AC) to DC conversion within the current grid. Medium-voltage Direct Current (MVDC) and Flywheel Energy Storage Systems (FESS) are the next state-of-the-art technologies that researchers are leaning on to produce, convert, store, and distribute power with improved power quality, reliability, and flexibility. On the other hand, with the extensive integration of high-frequency power electronic converters, system stability analysis and the true system …

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A Design Build Company’S Pain Points For Field Staff Working Outside Of A Company’S Home Area, Mason Barber Dec 2021

A Design Build Company’S Pain Points For Field Staff Working Outside Of A Company’S Home Area, Mason Barber

Construction Management

Design-Build is the project-delivery system of the future but is not without pain points. The Design-Build system is an efficient form of project delivery that has a strong focus on relationships and can begin the construction phase while the design phase is still active. This study aims to identify and analyze the additional challenges or pain points that arise when Design-Build construction is taking place in an unfamiliar location and distant from the company office. The pain points are identified with field staff feedback through the form of survey responses. This study uses The Neenan Company as an example because …

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Analyzing The Gender Gap In Field Positions On Commercial Construction Projects, Adriana L. Frazier Dec 2021

Analyzing The Gender Gap In Field Positions On Commercial Construction Projects, Adriana L. Frazier

Construction Management

The percentage of women working in the construction industry is on the rise. However, most women working in the construction industry often fill administrative roles, office positions, and project management roles rather than field positions such as tradeswomen, foremen, or superintendents. According to the United States Bureau of Labor Statistics, as of 2020, women constitute 10.9 percent of the entire construction industry. Specifically, 86.7 percent of those women are in office positions with only 3.5 percent of women in trade positions. Those numbers signify that the construction industry is not benefitting from women in field positions. That is due to …

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The Causes Of Electrical Labor Shortages Within Central California, Madeline S. Brogno Dec 2021

The Causes Of Electrical Labor Shortages Within Central California, Madeline S. Brogno

Construction Management

Labor shortages within various trades in the construction industry have become a prominent issue throughout the world for decades. The negative effects due to lack of manpower affect construction personnel ranging from general contractors to manufacturers who are finding themselves struggling as many subcontractors are having to turn down work, which in turn affects general contractors timelines in projects- extending durations, and increasing costs. There has been general research done that has provided some insight, suggesting the root cause be attributed to the baby-boomer generation retiring, or a general lack of interest in the industry. This research paper on labor …

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Feasibility Study: Demolition Of Cal Poly’S “Powerhouse”, Evan W. Tookey Dec 2021

Feasibility Study: Demolition Of Cal Poly’S “Powerhouse”, Evan W. Tookey

Construction Management

The “Powerhouse” is currently an abandoned building located next to the Construction Innovations Center on the campus of Cal Poly San Luis Obispo. The building was constructed in 1908 and is currently the oldest standing building located on campus. Students at Cal Poly have always been aware of the building, as it takes up a significant portion of campus and is located in an area that receives a lot of foot traffic. Unfortunately, many Cal Poly students and faculty are uninformed as to the building’s history since it has been boarded-up and abandoned since 1990. This paper examines the Powerhouse …

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Effects Of Cal Poly Construction Management Software Curriculum On Graduate Employment Choices, Andrew Holland Dec 2021

Effects Of Cal Poly Construction Management Software Curriculum On Graduate Employment Choices, Andrew Holland

Construction Management

As technology continues to advance at an accelerated pace, the construction industry struggles to keep up with these rapid changes. Understanding and adopting new technologies, specifically software, are key to the future of the construction industry. Studies have shown that the slow adoption of software in the industry has more to do with a lack of training than the limitations of the software. New hires out of universities with experience and training in these software are the linchpin to adapting this industry to new technology. The Construction Management Department at Cal Poly is renowned for putting out new hires with …

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City Of Guadalupe Cultural Arts & Education Center Veterans Memorial Wall, Alejandra Arroyo Perez Dec 2021

City Of Guadalupe Cultural Arts & Education Center Veterans Memorial Wall, Alejandra Arroyo Perez

Construction Management

As a student in Construction Management, the importance of firsthand experience in the construction industry should not be taken lightly. The responsibility of every construction manager is to learn how to take a project from concept to reality. The primary five elements of construction management entail project programming, design development, material specifications, estimating, and scheduling. This paper documents the construction management process related to a Veterans Memorial Wall. Through coordination with the project stakeholders (i.e. property owners, engineer consultants, material fabricators, and vendors) a fully immersive construction management experience is gained. One of the stakeholder requirements was to establish a …

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Erratum: Physicochemical Insights Of Irradiation-Enhanced Hydroxyl Radical Generation From Zno Nanoparticles(Toxicology Research Doi: 10.1039/C5tx00384a), Qingbo Yang, Tien Sung Lin, Casey Burton, Sungho Park, Yinfa Ma Dec 2021

Erratum: Physicochemical Insights Of Irradiation-Enhanced Hydroxyl Radical Generation From Zno Nanoparticles(Toxicology Research Doi: 10.1039/C5tx00384a), Qingbo Yang, Tien Sung Lin, Casey Burton, Sungho Park, Yinfa Ma

Electrical and Computer Engineering Faculty Research & Creative Works

In the originally published version of this manuscript, the fourth author's name is incorrect. The name should read "Sungho Park", instead of "Sung-Ho Park". These details have been corrected only in this corrigendum to preserve the published version of record.

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Investigations Into Unintended Esd Generator Artifacts: Prepulse And Postpulse, Jianchi Zhou, Pengyu Wei, Li Shen, Xin Yan, Giorgi Maghlakelidze, Guido Notermans, Sergej Bub, Steffen Holland, David Pommerenke Dec 2021

Investigations Into Unintended Esd Generator Artifacts: Prepulse And Postpulse, Jianchi Zhou, Pengyu Wei, Li Shen, Xin Yan, Giorgi Maghlakelidze, Guido Notermans, Sergej Bub, Steffen Holland, David Pommerenke

Electrical and Computer Engineering Faculty Research & Creative Works

An electrostatic discharge (ESD) generator may create pre- and post-pulses in addition to the main pulse. These artifacts can cause additional device under test (DUT) failures. The origin and magnitude of these pulses were investigated in four commercial generators using measurements and simulation. Two types of unwanted pulses were identified. One is caused by the reignition of the spark, and the other relates to the relay contacting for charging the main capacitor. These pulses cause strong high-frequency signals, partially surpassing the radio frequency content of the main pulse. The spectrum of the pre- and postpulses varies greatly between different generators. …

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An Introductory Study Of Coal Fly Ash Enhancement For Heavy Metal Removal In Wastewater Treatment., Samuel T. Romes Dec 2021

An Introductory Study Of Coal Fly Ash Enhancement For Heavy Metal Removal In Wastewater Treatment., Samuel T. Romes

Electronic Theses and Dissertations

Coal Combustion Products are the materials that remain after pulverized coal is burned to generate electricity. The fine portion, fly ash, has many re-use capabilities across various industries. Most recent data shows that approximately 60% of fly ash produced in the United States was used with the largest re-use being concrete additives. This work aims to enhance fly ash via hydrothermal treatment in order to expand the re-use capabilities of the material. These materials were tested as adsorbents for heavy metal removal from wastewater samples. The metals tested for removal were Copper (II) Acetate, Cadmium Chloride, Boric Acid, Sodium Selenite, …

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Coal Fly Ash Beneficiation For Reuse And Removal Of Boron, Cadmium, Chromium, Copper, And Selenium In Wastewater Treatment., Joseph E. Cahill Dec 2021

Coal Fly Ash Beneficiation For Reuse And Removal Of Boron, Cadmium, Chromium, Copper, And Selenium In Wastewater Treatment., Joseph E. Cahill

Electronic Theses and Dissertations

New regulations on coal-fired power plants make previously used wastewater treatment methods aimed to remove heavy metals obsolete. Therefore, there has been increased interest and investment into new technologies to treat coal-fired power plants effluent in the past few years. Traditionally, heavy metal removal technologies have been broken into three categories: physical, chemical or biological. However, with new regulations, each category by itself does not offer an ideal solution to removing acceptable concentrations of heavy metals found in the effluents at the coal-fired power plants. Here we report a novel proof-of-concept utilizing adsorption through ion-exchange/co-precipitation - chemical and physical - …

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Scalable Synthesis Of Alumina Nanowires By Wet Chemical Method., Luis N Moreno Dec 2021

Scalable Synthesis Of Alumina Nanowires By Wet Chemical Method., Luis N Moreno

Electronic Theses and Dissertations

To satisfy an increasing demand for large-scale processes for producing alumina nanomaterials, a wet chemical method was evaluated. A potassium salt precursor was combined with aluminum to produce alumina – based nanowires. Compared with current methods such as thermal oxidation, sol-gel, and laser ablation, this method is highly scalable due to relatively low energy requirements and the ability to carry out the primary reaction under ambient conditions. The nanowire samples were evaluated using SEM, XRD, BET, and TEM to confirm morphology, phases present, and surface area. A porous nanowire structure was confirmed which has a BET surface area of 324.6 …

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Update Of Multicellular Data Standard To Match Physicell "Compact" Output., Reid A Honeycutt Dec 2021

Update Of Multicellular Data Standard To Match Physicell "Compact" Output., Reid A Honeycutt

Electronic Theses and Dissertations

In the field of multicellular biology, it is currently very difficult for researchers to share digital data, due to a lack of standards for said data. Each laboratory will collect data from a particular project, which will describe only the features relevant to their research, and then present that data using written descriptions, charts, graphs, and images. This makes it difficult for the data produced by these studies be leveraged in other research efforts by scientists studying similar phenomena. An open-source, universal standard that attempts to meet this need is the MultiCellular Data Standard (MultiCellDS). MultiCellDS is described as a …

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