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Skip The Grid 25-26: A Safety-Driven Solar Installation Project In The Navajo And Hopi Nations, James R. Wall Mar 2026

Skip The Grid 25-26: A Safety-Driven Solar Installation Project In The Navajo And Hopi Nations, James R. Wall

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 …

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The Impact Of Bilingual Superintendents On A Multilingual Job Site, Cesar Barajas Mar 2026

The Impact Of Bilingual Superintendents On A Multilingual Job Site, Cesar Barajas

Construction Management

Language barriers are frequently encountered on construction job sites. Construction crews can often be limited in their proficiency when speaking English and in states like California, construction superintendents oversee a lot of Spanish-speaking crews. This study aims to identify if bilingual superintendents lead to better performing projects. Communication impacts major metrics of project performance including schedule, rework costs, safety performance, and coordination across trades. This qualitative study includes superintendents, project managers, and field crew semi structured interviews backed by survey answers. Interview participants discuss specific examples of how communication can affect jobsite performance both negatively and positively. Subjects are asked …

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The Future Of Commercialized Bamboo Construction, Katie Hunt Mar 2026

The Future Of Commercialized Bamboo Construction, Katie Hunt

Construction Management

Bamboo construction is a niche area of research and development in the sustainable construction realm. The material has impressive structural properties and minimal carbon emissions relative to the world’s most common building materials (concrete, steel, and timber). It has long been used to build homes in tropical regions around the world. Outside of these regions, bamboo is rarely used for construction despite its abundant benefits as a sustainable building material. This report took an interview-based approach to address why bamboo is not more popular in the American commercial construction market and where it has potential for growth in the global …

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Cmbuilder Introduction Tutorial, Hannah G. Benner Mar 2026

Cmbuilder Introduction Tutorial, Hannah G. Benner

Construction Management

This paper details the process and deliverables for a introductory-level tutorial for the program, cmBuilder. Recognizing the software’s growing relevance in the construction industry and its ease of-use, this student tutorial project aims to provide early exposure to the program for first- and second-year Cal Poly Construction Management students. There is currently no existing course or module at Cal Poly that covers an introduction to the basics of cmBuilder, so the goal of this course module is to bridge that gap. The deliverable is a course module for the Fundamentals of Virtual Design and Construction class, containing two tutorial videos …

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Microstructural Evolution Of Zirconium Diboride Irradiated With 5–10 Mev Au Ions At Room Temperature And 570 °C, Narrie Loftus, José Olivares, Miguel Crespillo, Esther Enríquez Pérez, Jeremy Watts, Eric W. Bohannan, Gregory Hilmas, William Fahrenholtz, Joseph Graham Mar 2026

Microstructural Evolution Of Zirconium Diboride Irradiated With 5–10 Mev Au Ions At Room Temperature And 570 °C, Narrie Loftus, José Olivares, Miguel Crespillo, Esther Enríquez Pérez, Jeremy Watts, Eric W. Bohannan, Gregory Hilmas, William Fahrenholtz, Joseph Graham

Materials Science and Engineering Faculty Research & Creative Works

Zirconium diboride was irradiated with 5 MeV Au2 + , 7 MeV Au4+ and 10 MeV Au3+ ions at room temperature and 570 °C to doses from 1 to 8 displacements per atom (dpa). Grazing incidence X-ray diffraction (GIXRD) analysis revealed no secondary phase formation. Rietveld analysis of the GIXRD data indicated an accumulation of microstrain at low dpa and room temperature. Dislocations observed in transmission electron microscopy (TEM) cross-sections are likely the main contributor to the microstrain. High dpa and high-temperature samples exhibit lower lattice distortion than lower dpa samples, suggesting the presence of enhanced defect …

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Thermally Stable Sic Particulate-Reinforced Sic Composites Up To 2000 ℃ Fabricated By Precursor Impregnation And Pyrolysis Method, Jian Gu, Vu Viet Hung, Lun Feng, William G. Fahrenholtz, Daejong Kim, Seyoung Kim, Sea Hoon Lee Mar 2026

Thermally Stable Sic Particulate-Reinforced Sic Composites Up To 2000 ℃ Fabricated By Precursor Impregnation And Pyrolysis Method, Jian Gu, Vu Viet Hung, Lun Feng, William G. Fahrenholtz, Daejong Kim, Seyoung Kim, Sea Hoon Lee

Materials Science and Engineering Faculty Research & Creative Works

The thermo-mechanical properties of SiC particulate-reinforced SiC composites (SiC-PRCs), fabricated using precursor impregnation & pyrolysis (PIP) process, were analyzed up to 2000 ℃. The relative density of the SiC-PRCs after 4 PIP cycles was 88.6 %. The number of PIP cycles required decreased to nearly half compared with the conventional PIP method by using ultra-high concentration slurries up to 70 vol%. In addition, room-temperature bending strength (215 MPa) and Young's modulus (269 GPa) improved as the solid loading of the slurry increased. The bending strength increased to 232 MPa at 2000 ℃ in Ar. Despite the thermal deterioration of the …

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A Software Package For Generating Robust And Accurate Potentials Using The Moment Tensor Potential Framework, Josiah Roberts, Biswas Rijal, Simon Divilov, Jon Paul Maria, William G. Fahrenholtz, Douglas E. Wolfe, Donald W. Brenner, Stefano Curtarolo, Eva Zurek Mar 2026

A Software Package For Generating Robust And Accurate Potentials Using The Moment Tensor Potential Framework, Josiah Roberts, Biswas Rijal, Simon Divilov, Jon Paul Maria, William G. Fahrenholtz, Douglas E. Wolfe, Donald W. Brenner, Stefano Curtarolo, Eva Zurek

Materials Science and Engineering Faculty Research & Creative Works

We present the Plan for Robust and Accurate Potentials (PRAPs), a software package for training and using moment tensor potentials (MTPs) in concert with the Machine Learned Interatomic Potentials (MLIP) software package. PRAPs provides an automated workflow to train MTPs using active learning procedures, and a variety of utilities to ease and improve workflows when utilizing the MLIP software. PRAPs was originally developed in the context of crystal structure prediction, in which one calculates convex hulls and predicts low energy metastable and thermodynamically stable structures, but the potentials PRAPs develops are not limited to such applications. PRAPs produces two potentials, …

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Superhard Refractory High-Entropy Diborides, M. D. Hossain, N. S. Mcilwaine, N. O. Marquez-Rios, A. C. Feltrin, V. Chawla, R. A. Mayanovic, W. G. Fahrenholtz, D. Penumadu, E. Zurek, D. W. Brenner, D. E. Wolfe, S. Divilov, H. Eckert, S. Curtarolo Mar 2026

Superhard Refractory High-Entropy Diborides, M. D. Hossain, N. S. Mcilwaine, N. O. Marquez-Rios, A. C. Feltrin, V. Chawla, R. A. Mayanovic, W. G. Fahrenholtz, D. Penumadu, E. Zurek, D. W. Brenner, D. E. Wolfe, S. Divilov, H. Eckert, S. Curtarolo

Materials Science and Engineering Faculty Research & Creative Works

Using first-principles calculations and companion experimental validations, we demonstrate that the valence electron concentration (VEC) can be used to self-consistently parameterize the bonding characteristics of high-entropy diborides (HEBs) and in turn predict their mechanical properties. When VEC is 10.0 per formula unit (f.u.), HEBs enter the superhard category where Hv>40GPa because bonding states are optimally filled to resist shear deformation. Conversely, above or below a VEC of 10.0, the hardness decreases due to the filling of antibonding or the emptying of bonding states of the HEBs, respectively. This result is supported by analyses of the electronic structure, bonding, antibonding, …

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Evaluating The Feasibility Of Recycled Asphalt Pavement And Warm Mix Asphalt In California Highway Construction, Ryan A. Milanesa Mar 2026

Evaluating The Feasibility Of Recycled Asphalt Pavement And Warm Mix Asphalt In California Highway Construction, Ryan A. Milanesa

Construction Management

California’s highway infrastructure faces increasing material costs, limited aggregate availability, and aggressive greenhouse gas reduction mandates. Reclaimed Asphalt Pavement (RAP) offers a practical solution to reduce virgin binder demand and improve sustainability. However, Caltrans maintains conservative RAP limits due to concerns regarding stiffness related cracking and long term durability. This research evaluates the feasibility of increasing RAP content to approximately 40% when combined with Warm Mix Asphalt (WMA) technologies under California performance standards. A performance based framework was developed by reviewing federal guidance, peer-reviewed fatigue studies, life cycle cost analysis, and environmental assessment literature. Findings indicate that high RAP mixtures …

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Slo Botanical Garden Outdoor Classroom, Nathan Berger, Jake Galster Mar 2026

Slo Botanical Garden Outdoor Classroom, Nathan Berger, Jake Galster

Construction Management

This paper focuses on the construction and completion of outdoor benches and tabletops for the renovation of the SLO Botanical Garden’s Outdoor Classroom. This project is student lead for the completion of the Cal Poly SLO Construction Management curriculum requirement of a senior project by the project team consisting of Nathan Berger and Jake Galster. The objective of the project is to build two 12’ long benches that allow the SLO Botanical Garden staff to store four bins beneath each bench. The table tops objective to provide students in the outdoor classroom a flat and level workspace that is removable …

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Family Christian Center Storage Shed, Jacob Nehemiah Zuniga Mar 2026

Family Christian Center Storage Shed, Jacob Nehemiah Zuniga

Construction Management

This project focused on the planning and construction of a storage shed for my church to address growing space limitations. As classrooms and other functional areas were being used for storage, the goal was to create a dedicated storage solution that would free up interior space for ministry use. After receiving approval from church leadership, I developed a full project plan including a scope of work, cost estimate, quantity takeoff, schedule using Microsoft Project, site logistics plan, safety plan, and construction drawings. I also coordinated with the City of Patterson Planning Department to ensure compliance with local requirements. The project …

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Life Cycle Assessment And Cost Analysis Of Exterior, Electrical, And Appliance Systems In A Prefabricated Mass Timber Residential Unit, Ella Rohrbough Mar 2026

Life Cycle Assessment And Cost Analysis Of Exterior, Electrical, And Appliance Systems In A Prefabricated Mass Timber Residential Unit, Ella Rohrbough

Construction Management

This study presents a detailed process-based life cycle assessment and life cycle cost analysis of selected building systems within a prefabricated mass timber residential unit constructed through an interdisciplinary design build project at California Polytechnic State University. The research focuses specifically on exterior envelope systems electrical infrastructure and major appliances. Material quantities were derived from a comprehensive construction material takeoff and modeled in OpenLCA using the ecoinvent database. A cradle to site system boundary including modules A1 through A5 was applied to quantify embodied environmental impacts such as global warming potential acidification fossil fuel depletion and human toxicity. Results indicate …

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Sustainabake, Kevin Kunta Swanson Ii Mar 2026

Sustainabake, Kevin Kunta Swanson Ii

Electrical Engineering

This senior project outlines the development of an oven that utilizes renewable energy to operate safely and effectively. It aims to test building an oven using mostly basic hardware students acquired during their time at Cal Poly and provide a starting point for those interested in creating a solar-powered oven. As our society continues to innovate and increasingly relies on electricity, it is important to place more emphasis on how we can make our lives sustainable to take care of our environment without introducing excessive pollutants. Food preparation is a daily activity that typically involves significant energy consumption, making this …

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Bridging 2d And 3d Computational Modeling Of Vacuum Arc Remelting: Capturing Rotating Arc Dynamics In Axisymmetric Simulations, Zilong Zhang, Elaheh Dorari, Ramesh Minisandram, Shakarjee Krishnamoorthi, Lang Yuan Mar 2026

Bridging 2d And 3d Computational Modeling Of Vacuum Arc Remelting: Capturing Rotating Arc Dynamics In Axisymmetric Simulations, Zilong Zhang, Elaheh Dorari, Ramesh Minisandram, Shakarjee Krishnamoorthi, Lang Yuan

Faculty Publications

Computational modeling of the Vacuum Arc Remelting (VAR) process has been developed to provide a deeper physical and metallurgical understanding and assist in the manufacture of defect-free ingots. While fully 3D, time-resolved arc models capture arc–melt interactions with high fidelity, their high computational cost makes 2D steady arc models still the preferred option in industrial applications. In this study, a multi-physics VAR model, which accounts for magnetohydrodynamics, heat transfer, fluid dynamics, and melting/solidification, was established in ANSYS Fluent for Alloy 718 in 3D with a rotating arc. It was validated against measured melt pool morphology. A new 2D axisymmetric oscillating …

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Machine Learning-Based Upscaling Of Rock Permeability From Pore Scale To Core Scale: Effect Of Training Dataset Size And Sub-Core Volumes, Yaotian Guo, Fei Jiang, Takeshi Tsuji, Yoshitake Kato, Mai Shimokawara, Lionel Esteban, Mojtaba Seyyedi, Marina Pervukhina, Maxim Lebedev, Ryuta Kitamura Mar 2026

Machine Learning-Based Upscaling Of Rock Permeability From Pore Scale To Core Scale: Effect Of Training Dataset Size And Sub-Core Volumes, Yaotian Guo, Fei Jiang, Takeshi Tsuji, Yoshitake Kato, Mai Shimokawara, Lionel Esteban, Mojtaba Seyyedi, Marina Pervukhina, Maxim Lebedev, Ryuta Kitamura

Research outputs 2022 to 2026

Permeability characterizes the capacity of porous formations to conduct fluids, thereby governing the performance of carbon capture, utilization, and storage (CCUS), hydrocarbon extraction, and subsurface energy storage. A reliable assessment of rock permeability is therefore essential for these applications. Direct estimation of permeability from low-resolution CT images of large rock samples offers a rapid approach to obtain permeability data. However, the limited resolution fails to capture detailed pore-scale structural features, resulting in low prediction accuracy. To address this limitation, we propose a convolutional neural network (CNN)-based upscaling method that integrates high-precision pore-scale permeability information into core-scale, low-resolution CT images. In …

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A Knowledge Transfer-Based Membrane Evolutionary Algorithm For Solving Large-Scale Sorted Waste Collection Problem With Timeliness, Wenxue Zhang, Boquan Gao, Aldy Gunawan, Yunyun Niu, Jianhua Xiao Mar 2026

A Knowledge Transfer-Based Membrane Evolutionary Algorithm For Solving Large-Scale Sorted Waste Collection Problem With Timeliness, Wenxue Zhang, Boquan Gao, Aldy Gunawan, Yunyun Niu, Jianhua Xiao

Research Collection School Of Computing and Information Systems

The sorted collection of municipal solid waste has emerged as an effective waste management strategy due to varying timeliness requirements across different waste types, giving rise to the critical research challenge of timeliness-based waste collection. While existing algorithms primarily focus on small-scale versions of this problem, solving large-scale timeliness-based waste collection problems remains particularly challenging. To tackle this issue, this paper proposes a knowledge transfer-based membrane evolutionary algorithm. Specifically, the original problem and simplified problem are constructed in different membranes respectively, and the knowledge transfer learning mechanism is incorporated into the membrane evolutionary algorithm, enabling effective information exchange between the …

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Plm-Effector: Unleashing The Potential Of Protein Language Models For Bacterial Secreted Protein Prediction, Dandan Zheng, Lihong Chen, Guansong Pang, Jian Yang Mar 2026

Plm-Effector: Unleashing The Potential Of Protein Language Models For Bacterial Secreted Protein Prediction, Dandan Zheng, Lihong Chen, Guansong Pang, Jian Yang

Research Collection School Of Computing and Information Systems

Bacterial secreted proteins, particularly effectors delivered by specialized secretion systems, are key mediators of virulence and host-pathogen interactions. However, accurate computational identification remains challenging, as many existing methods rely heavily on sequence similarity or handcrafted features, and often focus on a single secretion system. Recent studies have reported that some bacterial effectors may be associated with more than one secretion system, highlighting the complexity of secretion system annotation and motivating the development of system-aware computational prediction approaches. Here, we present PLM-Effector, a hybrid deep learning framework that integrates modern protein language models (PLMs) with multiple neural architectures via a two-layer …

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Navigation Beyond Wayfinding: Robots Collaborating With Visually Impaired Users For Environmental Interactions, Shaojun Cai, Nuwan Janaka, Ashwin Ram, Janidu Shehan, Yingjia Wan, Kotaro Hara, David Hsu Mar 2026

Navigation Beyond Wayfinding: Robots Collaborating With Visually Impaired Users For Environmental Interactions, Shaojun Cai, Nuwan Janaka, Ashwin Ram, Janidu Shehan, Yingjia Wan, Kotaro Hara, David Hsu

Research Collection School Of Computing and Information Systems

Robotic guidance systems have shown promise in supporting blind and visually impaired (BVI) individuals with wayfinding and obstacle avoidance. However, most existing systems assume a clear path and do not support a critical aspect of navigation—environmental interactions that require manipulating objects to enable movement. These interactions are challenging for a human–robot pair because they demand (i) precise localization and manipulation of interaction targets (e.g., pressing elevator buttons) and (ii) dynamic coordination between the user’s and robot’s movements (e.g., pulling out a chair to sit). We present a collaborative human–robot approach that combines our robotic guide dog’s precise sensing and localization …

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Addressing System Strength And Reliability Concerns In Renewable Energy-Based Weak Grids Using Synchronous Condensers Determined By Hybrid Gru-Classical Optimization Method, Md Ohirul Qays, Iftekhar Ahmad, Daryoush Habibi, Mohammad A.S. Masoum, Thair Mahmoud Mar 2026

Addressing System Strength And Reliability Concerns In Renewable Energy-Based Weak Grids Using Synchronous Condensers Determined By Hybrid Gru-Classical Optimization Method, Md Ohirul Qays, Iftekhar Ahmad, Daryoush Habibi, Mohammad A.S. Masoum, Thair Mahmoud

Research outputs 2022 to 2026

Owing to the higher-integration of renewable energy generators (REGs), conventional coal-based synchronous generators are being decommissioned from generation fleets, resulting in system strength and reliability concerns. Along with the increasing load demand, deficiency of system strength can be a huge risk to system stability and can eventually lead to blackouts by disconnecting REGs from grid systems. In the literature, researchers and power engineers have proposed to deploy synchronous condensers (SynCons) as a mitigation strategy to address the system strength and reliability challenges. SynCons are, however, expensive and require investigation for higher reliability results before installation. To address the concerns, SynCons’ …

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Orthogonal Time Frequency Space Modulation For Underwater Acoustic Communication Systems: A Review, Bevek Subba, Quoc Viet Phung, Stefan Lachowicz, Walid K. Hasan, Muhammad Haziq, Daryoush Habibi, Iftekhar Ahmad Mar 2026

Orthogonal Time Frequency Space Modulation For Underwater Acoustic Communication Systems: A Review, Bevek Subba, Quoc Viet Phung, Stefan Lachowicz, Walid K. Hasan, Muhammad Haziq, Daryoush Habibi, Iftekhar Ahmad

Research outputs 2022 to 2026

Underwater Acoustic Communication (UAC) has garnered significant attention due to its applications in marine science, defence, and exploration. With the vast majority of the Earth's surface covered by water, there is a growing demand for reliable and effective communication techniques in underwater environments. However, the underwater acoustic channel is the most challenging channel due to its harsh characteristics, which significantly hinder the reliability and performance of UAC systems. Orthogonal Time Frequency Space (OTFS) modulation has emerged as a promising solution for next-generation UAC systems to address high Doppler and high mobility scenarios. It has demonstrated tolerance to fast time-varying channel …

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Shear Stability Enhancement In Fracture Plugging Zones: Unveiling Failure Mechanisms And Adhesive Benefits Through Photoelastic Analysis, Haoran Jing, Yili Kang, Chengyuan Xu, Lei Liu, Xiaopeng Yan, Zhenjiang You Mar 2026

Shear Stability Enhancement In Fracture Plugging Zones: Unveiling Failure Mechanisms And Adhesive Benefits Through Photoelastic Analysis, Haoran Jing, Yili Kang, Chengyuan Xu, Lei Liu, Xiaopeng Yan, Zhenjiang You

Research outputs 2022 to 2026

Addressing lost circulation during drilling operations typically involves the utilization of lost circulation materials (LCMs) to create a fracture plugging zone (FPZ), which effectively decouples the wellbore fluid column pressure (Pw) from the formation pressure (Pf). This FPZ, comprised of aggregated granular LCM particles, frequently succumbs to shear stress, with shear failure being the predominant mode of structural failure, leading to ongoing fluid losses. To illuminate the failure mechanisms of the FPZ under conditions of escalating drilling differential pressure (Pw - Pf), we utilized photoelastic experiments to capture and visualize the evolving mesoscopic mechanical structure of the FPZ. Photoelastic images …

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Magnetically Driven Engineering Of Magnetic Hydroxyapatite/Ca Ro Membranes: Enhancing Surface Physicochemical Properties For High-Performance Water Desalination, Fariba Oulad, Ali Akbar Zinatizadeh, Sirus Zinadini, Amir Razmjou, Sara Eavani Mar 2026

Magnetically Driven Engineering Of Magnetic Hydroxyapatite/Ca Ro Membranes: Enhancing Surface Physicochemical Properties For High-Performance Water Desalination, Fariba Oulad, Ali Akbar Zinatizadeh, Sirus Zinadini, Amir Razmjou, Sara Eavani

Research outputs 2022 to 2026

This research focuses on the development of innovative hydrophilic reverse osmosis (RO) hydroxyapatite/cellulose acetate (HAP/CA) and magnetic-hydroxyapatite (M-HAP)/CA membranes, utilizing a phase-inversion technique with varying nanoparticles (NPs) concentration. The positioning of magneto-responsive M-HAP NPs within the advanced M-HAP/CA membranes was adeptly controlled using magnetic guidance during immersion- precipitation process in a coagulation bath. This precise control enabled a densely organized arrangement of M-HAP NPs, shifting from the membrane's core to its upper separation layer. Consequently, the barrier properties, mechanical integrity, and surface characteristics of the advanced M-HAP/CA membranes saw significant enhancement due to the uniform distribution of hydrophilic porous NPs …

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Emerging Design Paradigms And Microstructural Innovations In Refractory High-Entropy Alloys: A Critical Review, Deyu A. Jiang, Lai Chang Zhang, Kuaishe Wang, Mahmoud Ebrahimi, Wen Wang, Liqiang Wang, Weijie Lu, Di Zhang Mar 2026

Emerging Design Paradigms And Microstructural Innovations In Refractory High-Entropy Alloys: A Critical Review, Deyu A. Jiang, Lai Chang Zhang, Kuaishe Wang, Mahmoud Ebrahimi, Wen Wang, Liqiang Wang, Weijie Lu, Di Zhang

Research outputs 2022 to 2026

Refractory high-entropy alloys (RHEAs) are being developed to meet mechanical, thermal and chemical requirements that exceed what current super-alloys can withstand. This review explains how composition design, processing routes and the resulting microstructures now combine to realize that potential. We first link phase selection in BCC-, FCC- and dual-phase RHEAs to atomic-size mismatch, mixing enthalpy and valence-electron concentration, and compare manufacturing paths ranging from arc melting to powder metallurgy, additive manufacturing and vapor deposition, showing how each reshapes grain structure and defect chemistry to improve high-temperature strength, corrosion resistance and irradiation tolerance. Computation-led tools—density-functional theory, calculation of phase diagrams and …

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Evaluation Of Sanafoam Vaporooter Ii Stress On Activated Sludge Performance For Carbonaceous Removal And Nitrification, Ensiyeh Taheri, Ali Fatehizadeh, John Nazimek, Mustafa Nabi, Wayne Bagg, Amir Razmjou, Paul Nolan, Ratish Permala, Mehdi Khiadani Mar 2026

Evaluation Of Sanafoam Vaporooter Ii Stress On Activated Sludge Performance For Carbonaceous Removal And Nitrification, Ensiyeh Taheri, Ali Fatehizadeh, John Nazimek, Mustafa Nabi, Wayne Bagg, Amir Razmjou, Paul Nolan, Ratish Permala, Mehdi Khiadani

Research outputs 2022 to 2026

Root intrusion control in sewer pipelines often relies on chemical herbicides, yet their unintended impacts on downstream biological treatment remain underexplored. This study investigated the effects of Sanafoam Vaporooter II (SVII) on carbon removal and nitrification in activated sludge reactors (ASRs) under long-term operation. Two parallel bench-scale ASRs were installed and operated at Subiaco municipal wastewater treatment plant in Perth, Western Australia: one was exposed to incremental SVII concentrations (1–3000 mg/L), while the other served as an unamended control. Stoichiometric analysis revealed stable organic matter removal across all SVII doses. In contrast, nitrification decreased progressively at concentrations exceeding 128 mg/L. …

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Green And Charge-Tuned Β-Cyclodextrin Polymers For Efficient Removal Of Pfas And Anionic Dyes From Water, Samira Sadeghi, Ahmad Najafidoust, Mark Mullett, Shayan Karimi, Masoumeh Zargar Mar 2026

Green And Charge-Tuned Β-Cyclodextrin Polymers For Efficient Removal Of Pfas And Anionic Dyes From Water, Samira Sadeghi, Ahmad Najafidoust, Mark Mullett, Shayan Karimi, Masoumeh Zargar

Research outputs 2022 to 2026

Water contamination by per- and polyfluoroalkyl substances (PFAS) poses a major environmental challenge due to their persistence. This study evaluates positively charged, green-synthesized β-cyclodextrin polymers (β-CDP+) for the removal of perfluorobutanoic acid (PFBA) and perfluorooctanoic acid (PFOA) as short- and long-chain PFAS, respectively, from water. Methyl orange (MO) and acid red 1 (AR1), as anionic dyes, were used as proxies to optimize PFAS adsorption conditions. β-CDP+ exhibited high removal efficiencies (>90%) for all pollutants within 15–50 mg/L, reaching equilibrium within 30 min. Maximum adsorption capacities (Qm) were achieved for MO (335 mg/g), AR1 (384 mg/g), PFOA …

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Synergist Free Solvent Extraction Of Lithium From Alkaline Salt Lake Brines Using Thenoyltrifluoroacetone In Octanol, Shayan Abrishami, Amir Razmjou Mar 2026

Synergist Free Solvent Extraction Of Lithium From Alkaline Salt Lake Brines Using Thenoyltrifluoroacetone In Octanol, Shayan Abrishami, Amir Razmjou

Research outputs 2022 to 2026

The growing demand for lithium in energy storage applications necessitates the development of efficient and selective extraction technologies for recovering lithium from alkaline brines containing high concentrations of competing alkali metals. This study presents an investigation of a thenoyltrifluoroacetone (TTA)-octanol solvent extraction system for selective lithium recovery from high‑sodium brines, utilizing 1-octanol as an environmentally benign diluent without requiring any synergistic co-extractant. Through systematic optimization of key operational parameters including pH, extractant concentration, scrubbing conditions, and stripping agent concentration, the system demonstrated excellent performance with lithium extraction efficiency of 67.5% ± 3.4% and a maximum separation factor of 28.0 ± …

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Pollinators Exhibit For Paso Robles Children’S Museum, Isabelle Moll, Matthew Moore, Joseph Hovanesian, Evan Stock, Matthew Wiecking Mar 2026

Pollinators Exhibit For Paso Robles Children’S Museum, Isabelle Moll, Matthew Moore, Joseph Hovanesian, Evan Stock, Matthew Wiecking

Mechanical Engineering

This report documents the design and development of an interactive pollination exhibit created for the Paso Robles Children’s Museum as part of the Mechanical Engineering Senior Project program. The goal of the project was to design a durable, safe, and engaging educational exhibit that introduces children to the role of pollinators in local ecosystems and agriculture through hands-on play. The final design features a triple-track system with rolling bee elements and a central pollen ball pathway that demonstrates how pollinators move between flowers and return resources to the hive. The exhibit incorporates visual feedback and locally inspired design elements to …

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Baja Sae Gear Testing, Selina Bayles, Lucia Giacalone, Claire Cornelsen, Sarah Talbert Mar 2026

Baja Sae Gear Testing, Selina Bayles, Lucia Giacalone, Claire Cornelsen, Sarah Talbert

Mechanical Engineering

The Baja SAE Gear Testing project outlined a test stand and procedure to update the S-N curve currently used by the Baja SAE team. Currently the Cal Poly Baja SAE geartrain team uses a S-N curve to design custom gears, but this S-N curve does not accurately reflect the gears uses and their fatigue life. This project outlines the exploration of a dyno set up to allow for future testing of different categories of short life cycle gears to collect data and generate a new S-N curve and, ultimately, update the design of the gears. This team created a dyno …

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3d Bouldering Project, Joseph Robison Mar 2026

3d Bouldering Project, Joseph Robison

Liberal Arts and Engineering Studies

Many indoor rock climbers struggle to make the transition from indoor to outdoor bouldering due to differences in route visualization. This project applies photogrammetry to create 3D scans of outdoor holds with accurate measurements and textures to improve climber visualization. The measurements were then mapped onto a Tension Board 1 simulation. Six climbers were divided into control and simulation groups to test effectiveness. Results showed that confidence and perception of outdoor ability were increased in the simulation group. Performance outcomes were approximately equal between both groups. These findings suggest that visualization tools can enhance mental preparation for outdoor climbing.

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A Unified Methodological Framework For Generating Digital Twins Of Multi Class Uncrewed Systems (Uxs), Sai Raghava Pathuri Mar 2026

A Unified Methodological Framework For Generating Digital Twins Of Multi Class Uncrewed Systems (Uxs), Sai Raghava Pathuri

Shelby Hall Graduate Research Forum Presentations

No abstract provided.

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