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2021

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Articles 121 - 150 of 1621

Full-Text Articles in Civil and Environmental Engineering

The Preconstruction Of Foundation For A Greenhouse, Alla I. Hashim Dec 2021

The Preconstruction Of Foundation For A Greenhouse, Alla I. Hashim

Construction Management

This project outlines the preconstruction process for building a concrete base for a prefabricated greenhouse unit. This project was initiated by the Cal Poly Garden Club so they could plan for the installation of a greenhouse at the Student Experimental Farm on Cal Poly’s campus. The members of the club currently share a greenhouse with another Cal Poly Club which restricts their ability to use the greenhouse freely. The initial goal of the project was to request a permit, however, that will be postponed until the specific location is determined. This project still provides the necessary elements for requesting a …

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A Linear Dynamical Perspective On Epidemiology: Interplay Between Early Covid-19 Outbreak And Human Mobility, Shakib Mustavee Dec 2021

A Linear Dynamical Perspective On Epidemiology: Interplay Between Early Covid-19 Outbreak And Human Mobility, Shakib Mustavee

Electronic Theses and Dissertations, 2020-2023

This research investigates the impact of human activity and mobility (HAM) in the spreading dynamics of an epidemic. Specifically, it explores the interconnections between HAM and its effect on the early spread of the COVID-19 virus. During the early stages of the pandemic, effective reproduction numbers exhibited a high correlation with human mobility patterns, leading to a hypothesis that the HAM system can be studied as a coupled system with disease spread dynamics. This study applies the generalized Koopman framework with control inputs to determine the nonlinear disease spread dynamics and the input-output characteristics as a locally linear controlled dynamical …

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Modeling Driver Distraction Mechanism And Its Safety Impact In Automated Vehicle Environment., Song Wang Dec 2021

Modeling Driver Distraction Mechanism And Its Safety Impact In Automated Vehicle Environment., Song Wang

Electronic Theses and Dissertations

Automated Vehicle (AV) technology expects to enhance driving safety by eliminating human errors. However, driver distraction still exists under automated driving. The Society of Automotive Engineers (SAE) has defined six levels of driving automation from Level 0~5. Until achieving Level 5, human drivers are still needed. Therefore, the Human-Vehicle Interaction (HVI) necessarily diverts a driver’s attention away from driving. Existing research mainly focused on quantifying distraction in human-operated vehicles rather than in the AV environment. It causes a lack of knowledge on how AV distraction can be detected, quantified, and understood. Moreover, existing research in exploring AV distraction has mainly …

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Analyzing The Non-Isothermal Multiphasic Flow In Porous Media Through Strongly Coupled Thermo-Hydro-Mechanical Modeling., Mohammadreza Mir Tamizdoust Dec 2021

Analyzing The Non-Isothermal Multiphasic Flow In Porous Media Through Strongly Coupled Thermo-Hydro-Mechanical Modeling., Mohammadreza Mir Tamizdoust

Electronic Theses and Dissertations

Underground geo-structures and climate change can trigger coupled heat, moisture, and vapor flow in shallow and deep subsurface which is frequently referred to as non-isothermal multiphase flow. The coupled multiphasic flow in soil may induce volumetric shrinkage or expansion deformation depending on the thermo-hydraulic loading condition. In saturated porous media, temperature gradient and heat transfer may affect pore fluid pressure and/or pore fluid flow depending on thermal, mechanical, and hydraulic properties of the media and the saturating fluid. In vadose zones, the prediction of coupled nonisothermal multiphase flow in porous media has been the subject of many theoretical and experimental …

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Building And Infrastructure Defect Detection And Visualization Using Drone And Deep Learning Technologies, Yuhan Jiang, Sisi Han, Yong Bai Dec 2021

Building And Infrastructure Defect Detection And Visualization Using Drone And Deep Learning Technologies, Yuhan Jiang, Sisi Han, Yong Bai

Civil and Environmental Engineering Faculty Research and Publications

This paper presents an accurate and stable method for object and defect detection and visualization on building and infrastructural facilities. This method uses drones and cameras to collect three- dimensional (3D) point clouds via photogrammetry, and uses orthographic or arbitrary views of the target objects to generate the feature images of points’ spectral, elevation, and normal features. U-Net is implemented in the pixelwise segmentation for object and defect detection using multiple feature images. This method was validated on four applications, including on-site path detection, pavement cracking detection, highway slope detection, and building facade window detection. The comparative experimental results confirmed …

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Slicing-Based Artificial Intelligence Service Provisioning On The Network Edge: Balancing Ai Service Performance And Resource Consumption Of Data Management, Mushu Li, Jie Gao, Conghao Zhou, Xuemin Shen, Weihua Zhuang Dec 2021

Slicing-Based Artificial Intelligence Service Provisioning On The Network Edge: Balancing Ai Service Performance And Resource Consumption Of Data Management, Mushu Li, Jie Gao, Conghao Zhou, Xuemin Shen, Weihua Zhuang

Civil and Environmental Engineering Faculty Research and Publications

Edge intelligence leverages computing resources on the network edge to provide artificial intelligence (AI) services close to network users. As it enables fast inference and distributed learning, edge intelligence is envisioned to be an important component of 6G networks. In this article, we investigate AI service provisioning for supporting edge intelligence. First, we present the features and requirements of AI services. Then we introduce AI service data management and customize network slicing for AI services. Specifically, we propose a novel resource-pooling method to regularize service data exchange within the network edge while allocating network resources for AI services. Using this …

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Progress And Prospect Of Anodic Oxidation For The Remediation Of Perfluoroalkyl And Polyfluoroalkyl Substances In Water And Wastewater Using Diamond Electrodes, Sean T. Mcbeath, Adrián Serrano Mora, Fatemeh Asadi Zeidabadi, Brooke K. Mayer, Patrick J. Mcnamara, Madjid Mohseni, Michael R. Hoffman, Nigel J. D. Graham Dec 2021

Progress And Prospect Of Anodic Oxidation For The Remediation Of Perfluoroalkyl And Polyfluoroalkyl Substances In Water And Wastewater Using Diamond Electrodes, Sean T. Mcbeath, Adrián Serrano Mora, Fatemeh Asadi Zeidabadi, Brooke K. Mayer, Patrick J. Mcnamara, Madjid Mohseni, Michael R. Hoffman, Nigel J. D. Graham

Civil and Environmental Engineering Faculty Research and Publications

Although diamond electrodes are widely used in the field of electroanalysis and sensing, their application in the field of environmental engineering has yet to be fully realized. Many research studies have considered their potential application in water and wastewater treatment, where the in-situ electrochemical process can avoid the need for chemical additives by facilitating the oxidation of pollutants on the electrode surface or mediated by electrochemically synthesized oxidants in solution. Diamond-based electro-oxidation can effectively treat a number of organic micropollutants and is now being evaluated for the abatement of perfluoroalkyl and polyfluoroalkyl substances, which pose health concerns and are ubiquitous …

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Evapotranspiration In Mid-South Rice Production, Colby Wade Reavis Dec 2021

Evapotranspiration In Mid-South Rice Production, Colby Wade Reavis

Graduate Theses and Dissertations

Rice provides much needed sustenance to a large portion of the global population, particularly in the developing world. With stress placed on food production systems under the reality of climate change and an increasing global population, rice production systems require solutions to a number of issues, including a limited water supply. As producers explore new strategies for conserving local water resources to continue to maintain yields, new irrigation strategies and technologies are being developed and validated for use at commercial production scales. Alternate wetting and drying (AWD) is an irrigation practice that provides water savings through the capture of rainfall …

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The Bridge Newsletter Winter 2021, Missouri University Of Science And Technology Dec 2021

The Bridge Newsletter Winter 2021, Missouri University Of Science And Technology

The Bridge Newsletter

-S&T contributes to infrastructure through national center
-Brinkmann leads Missouri Highways and Transportation Commission
-Wu wins NSF CAREER Award for 2D metals work
-Academy of Civil Engineers induction and 150th celebration

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An Investigation Of Phosphorus Removal By Purple Bacteria In Dairy Wastewater Lagoons, Lauren M. Gomez, Andrew J. Schuler, Jose M. Cerrto, David T. Hanson Dec 2021

An Investigation Of Phosphorus Removal By Purple Bacteria In Dairy Wastewater Lagoons, Lauren M. Gomez, Andrew J. Schuler, Jose M. Cerrto, David T. Hanson

Civil Engineering ETDs

The objective of this study was to determine whether the polyphosphate metabolism in purple photosynthetic bacteria (PPB) is similar to that of wastewater polyphosphate-accumulating organisms (PAOs) such as Accumulibacter. Dairy lagoon samples were studied in continuous and batch laboratory tests to evaluate whether cyclic light and dark conditions for PPB are similar to aerobic and anaerobic conditions for PAOs in domestic wastewater treatment systems. 16s rRNA gene amplicon sequencing indicated the presence of the purple sulfur bacterium Thiolamprovum (53.92%) in one lagoon source, and Thiodictyon (3.50%) in a second lagoon. Phosphorus contents were at least 0.7% higher than the …

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Hybrid Structural Health Monitoring Using Data-Driven Modal Analysis And Model-Based Bayesian Inference., Jice Zeng Dec 2021

Hybrid Structural Health Monitoring Using Data-Driven Modal Analysis And Model-Based Bayesian Inference., Jice Zeng

Electronic Theses and Dissertations

Civil infrastructures that are valuable assets for the public and owners must be adequately and periodically maintained to guarantee safety, continuous service, and avoid economic losses. Vibration-based structural health monitoring (VBSHM) has been a significant tool to assess the structural performance of civil infrastructures over the last decades. Challenges in VBSHM exist in two aspects: operational modal analysis (OMA) and Finite element model updating (FEMU). The former aims to extract natural frequency, damping ratio, and mode shapes using vibrational data under normal operation; the latter focuses on minimizing the discrepancies between measurements and model prediction. The main impediments to real-world …

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What Is An Effective Way To Measure Arterial Demand When It Exceeds Capacity?, Mecit Cetin, Hong Yang, Kun Xie, Giridhar Kattepogu, Behrouz Salahshour Dec 2021

What Is An Effective Way To Measure Arterial Demand When It Exceeds Capacity?, Mecit Cetin, Hong Yang, Kun Xie, Giridhar Kattepogu, Behrouz Salahshour

Civil & Environmental Engineering Faculty Publications

This project focused on developing and evaluating methods for estimating demand volume for oversaturated corridors. Measuring demand directly with vehicle sensors is not possible when demand is larger than capacity for an extended period, as the queue grows beyond the sensor, and the flow measurements at a given point cannot exceed the capacity of the section. The main objective of the study was to identify and develop methods that could be implemented in practice based on readily available data. To this end, two methods were proposed: an innovative method based on shockwave theory; and the volume delay function adapted from …

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Building Energy Model Simulation Of A Single Building In Comparison To A Broader Building Stock, Paola Michelle Santillano Dec 2021

Building Energy Model Simulation Of A Single Building In Comparison To A Broader Building Stock, Paola Michelle Santillano

Open Access Theses & Dissertations

Residential facilities and buildings are the largest consumers of energy in the United States. More than 76% of electricity and more than 40% of all energy consumption comes from providing a comfortable and healthy environment in buildings. Prioritizing building energy technology goals for performance and cost can significantly reduce energy use within the next ten years despite a substantial forecasted population increase. Retrofitting existing buildings and improving future construction has the potential to realize cost savings and environmental benefits over time. A key component to realizing these benefits is regional building energy modeling. One of the challenges to widespread building …

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Identification And Evaluation Of Critical Transportation Infrastructure Resilience After Hydro-Meteorological Event, Herman Serrato Dec 2021

Identification And Evaluation Of Critical Transportation Infrastructure Resilience After Hydro-Meteorological Event, Herman Serrato

Open Access Theses & Dissertations

Modern civilization is dependent on essential infrastructure assets that allow society to function in today’s standards. Critical interdependent infrastructure such as transportation, communication, security, and public health are marvels of human innovation and an important aspect of civilization's evolution. Recent world events such as climate change have underlined the necessity to develop strategic plans to enhance the resilience of infrastructure. This study aimed to identify and evaluate the flooding potential of critical transportation infrastructure that will influence traffic flow and impact the economy. The technical workflow is based on observations, predictions, experiments, testing, and analysis to derive a resilience score …

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Drying Of Digested Biosolids For Weight Reduction Prior To Disposal, Juan Manuel Canales Dec 2021

Drying Of Digested Biosolids For Weight Reduction Prior To Disposal, Juan Manuel Canales

Open Access Theses & Dissertations

Disposal of belt filter pressed digested sludge (known as biosolids) to landfills cost El Paso Water about $1.1 million in the past year. With an increasing population, the amount of influent wastewater to El Paso treatment plants will also increase, resulting in increased biosolids generation and biosolids disposal costs. A method for reducing biosolids transportation cost is biosolids drying.The cost that El Paso Water pays for transporting biosolids to a dedicated landfill facility is based on the weight of the biosolids that are carried. Biosolids collected from the belt filter presses is about fifteen percent solids by weight, with water …

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Bathroom Remodel For Son Care Foundation, Inc., Tae Hun Kwak Dec 2021

Bathroom Remodel For Son Care Foundation, Inc., Tae Hun Kwak

Construction Management

The purpose of this paper is to provide insight into the process of remodeling a 42 SF bathroom for Son Care Foundation, Inc. The initial scope included the removal of an existing fiberglass bathtub, plumbing work, drywall installation, mudding, drywall texturing, new flooring, a new toilet, and a new sink. During construction, the owner requested that I add paint, an ADA-compliant sink, a new lighting fixture, a new vinyl baseboard, a new mirror, a new cabinet, new door trim, and new door hardware as part of my scope. I used what I learned in class to solve problems during the …

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Paso Robles Police Department Shooting Range Electrical Installation, Shelby I. Prosch Dec 2021

Paso Robles Police Department Shooting Range Electrical Installation, Shelby I. Prosch

Construction Management

The Paso Police Department has a shooting range for police officers to practice and master using firearms. A shooting range is a crucial part of police officer training to ensure public safety and correct and accurate usage of safety weapons. The construction for the shooting range began in the spring of 2021 by Cal Poly students where they laid the foundation. I became involved to further the progress of the shooting range by installing an electrical system. For that phase to begin, I completed a pre-construction package that details the materials and steps for installation. The package includes a scope …

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Granulated Blast Furnace Slag And Its Effects On Concrete Mixes, Adam Jacobson Dec 2021

Granulated Blast Furnace Slag And Its Effects On Concrete Mixes, Adam Jacobson

Construction Management

This paper explores what place slag, or granulated blast furnace slag has in our changing environment and evaluates how it compares to Portland cement. The purpose of this research is to discern how slag will be applicable in the future of construction and find what place it will have in concrete mixes. Slag is a Supplementary Cementitious Material (SCM) that is being utilized in more and more concrete applications due to its desirable properties and low environmental impact. Slag also reduces the amount of CO2 released that is produced in manufacturing and placing concrete. In this research, compressive strength of …

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Sustainability In Commercial Office Buildings, Jack Cullen Dec 2021

Sustainability In Commercial Office Buildings, Jack Cullen

Construction Management

Sustainability in the construction of commercial structures has been expanding through the recent years, largely in part due to the increasing ambitions to maintain a green and healthy planet. Regulations for including sustainable features in new or renovated commercial buildings have been growing throughout the country. In fact, many prospective buyers and lessees are even adding sustainable features to the list of what they look for in a potential place to buy or rent. This report will explore whether or not a building’s sustainable aspects appeal to buyers and lessees of commercial buildings, and if these sustainable aspects contribute to …

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Development Of A Topics Course For Construction Law, Julia C. Hoever Dec 2021

Development Of A Topics Course For Construction Law, Julia C. Hoever

Construction Management

The Cal Poly Construction Management program is designed to prepare students heading into the construction industry for daily management tasks. With construction comes many legal aspects integrated into a project’s operations. Though the curriculum includes a contract law course, a gap exists with a minimal number of classes that address the array of legal matters the construction industry must be versed in. Working with faculty member, Thomas Kommer, J.D., there is a need for a course that expands on these varying legal topics. In order to determine the specific topics that would impactfully benefit and educate Cal Poly Construction Management …

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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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