Digital Commons Network^™

Small-Scale Rainwater Harvesting: A Sustainable Practice For Single-Family Homes In Southern California, Azzah R. Bensrhir

Construction Management

Southern California is prone to drought and struggles with low water supplies. Los Angeles and San Diego County have enacted outdoor water regulations that aim to reduce the overall reliance on municipal and groundwater supplies. Rainwater harvesting (RWH) is a feasible way for single-family homeowners in Southern California to contribute to water conservation efforts. To determine the feasibility of installing, maintaining, and understanding overall challenges and costs of small-scale rainwater harvesting systems, four interviews were conducted with residents of Los Angeles and San Diego County who have owned and operated a RWH system for more than five years. The results …

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 …

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 …

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 …

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

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 …

Construction Of Lightly Reinforced Concrete Walls And Foundations For Fiber Reinforced Polymer Testing, Aidan D. Seed, Coulter Langmaid, Ryan R. Bousfield, Bennett B. Steiger

Construction Management

This paper details the construction of two cast-in-place concrete walls with attached footings, built to continue ongoing research into Fiber Reinforced Polymer (FRP) retrofitting conducted by California Polytechnic State University, San Luis Obispo, Architectural Engineering (ARCE) department. The project was located inside the College of Architecture and Environmental Design (CAED) High Bay testing facility and is part of a multi-year effort to evaluate FRP wrap as a seismic retrofitting option for lightly reinforced concrete walls dating to the pre-1980s. Formwork from the previous year's senior project was reused for this effort, and a two-phase pour was utilized and executed by …

The Sleep Effects Of Construction Management Students At Cal Poly Slo, Riley James Coalwell

Construction Management

Sleep deprivation and poor sleep quality have become increasingly common among college students, particularly in demanding studies such as construction management. This study examined sleep patterns, sleep duration, and perceptions related to sleep deprivation among construction management students at California Polytechnic State University, San Luis Obispo. The study replicated prior research conducted at Mississippi State University while focusing exclusively on one academic program and institution. A quantitative research method was used through an anonymous Microsoft Forms survey distributed to construction management students over a ten-week period. The survey collected demographic information, sleep behaviors, academic workload, and perceptions regarding sleep within …

Logistics And Workforce Management In Remote Reforestation Projects: A Case Study Of Ponterra In Panama, Omar Mejia-Meraz

Construction Management

With global efforts in reducing carbon emissions, large-scale reforestation projects are becoming increasingly important. While the environmental benefits of reforestation are well known, the operational and logistical challenges of reforestation projects are often overlooked. This case study examines the reforestation efforts conducted by Ponterra in the Azuero Peninsula region of Panama and analyzes how construction management principles support the planning, execution, and long-term success of restoration projects. Through a qualitative analysis consisting of an interview with Ponterra’s Field Operations Lead and supporting literature, this study evaluates the planning strategies, logistical challenges, workforce coordination, and client engagement involved in large-scale reforestation …

Cost–Benefit Analysis Of Undergrounding Power Lines For Wildfire Mitigation: Construction Management Implications Compared To Conventional Overhead Systems, Max T. Clement

Construction Management

Wildfires in California have increasingly been linked to failures in electrical infrastructure, particularly overhead power transmission, and distribution systems. As wildfire frequency and severity continue to escalate, utility providers, regulatory agencies, and construction professionals are evaluating undergrounding power lines as a long-term mitigation strategy. This research examines the construction management implications of undergrounding power lines compared to conventional overhead systems, focusing on cost, scheduling, constructability, risk allocation, and lifecycle performance. A mixed-methods approach is utilized, incorporating quantitative cost and lifecycle data alongside qualitative analysis of industry reports and case studies. The results indicate that although underground systems require significantly higher …

Analyzing Productivity In California’S Residential Construction Industry, Logan K. Booher

Construction Management

Following technological advancement over past years in California's residential construction industry, productivity levels have fallen short. This has revealed a pressing issue and raises the question of whether advancements in technology correlate with productivity improvements. This study investigates whether the lack of growth is a significant problem, specifically in California's residential construction industry, and what underlying factors are limiting improvements. Using an action-based research approach, the data for this study were collected through surveys that consisted of multiple-choice questions and checklist rankings, given to construction professionals across various roles and project types in California. The objective is to examine how …

Student Perceptions, Advantages, And Challenges Of Artificial Intelligence Tool Use In Higher Education, Olivia Lynch

Construction Management

Increasingly AI tools are being integrated into higher education and are starting to influence students’ access to information, the completion of assignments, and the use of new material. Generative AI-based tools, writing assistants, and automated research tools allow students to get explanations easily, sort out materials, or explore new areas of knowledge. While these technological advancements can improve productivity and make learning more efficient, they also raise questions of accuracy and academic integrity, as well as concerns about excessive reliance. This study focuses on how Construction Management (CM) students perceive AI tools in their academic work. An anonymous survey was …

On The Right To Obscurity, Woodrow Hartzog, Evan Selinger

Faculty Scholarship

Tragically, U.S. privacy law has neglected to address a significant dimension of privacy. While lawmakers and judges have routinely recognized intrusions into our secluded spaces and breaches of our confidentiality and secrecy, they have largely failed to protect our most common yet also our most underappreciated form of privacy: the practical obscurity that allows us to live freely and with dignity. Obscurity, which is the state of protection that arises when personal information is difficult for some people to obtain or correctly interpret, serves several vital interests: (1) it safeguards our ability to express ourselves without fear that everything we …

Geometric Characterization Of Ideals In Bipolar Semigroups, Kittipong Laipaporn, Rasimate Maungchang, David M. Cook, Prathomjit Khachorncharoenkul

Research outputs 2022 to 2026

This paper develops a geometric framework for analyzing the ideal structure of the bipolar semigroup ��={(−��,��)∣��,��∈ℝ+0} under coordinate-wise addition. Subsets of B are interpreted as planar regions, allowing ideals to be described in terms of boundary behavior. In particular, we prove that the complement of a simply connected region is an ideal of the commutative additive semigroup (��,+) if and only if its boundary contains no strictly decreasing segment. This provides a direct and visually verifiable criterion for ideality, linking algebraic structure to geometric shape. Each ideal can be written as a union of translates of the form ��+��, with …

Spatiotemporal Dynamics Of Riparian Land-Cover Change And Impervious-Cover Expansion In A Rapidly Urbanising Himalayan Capital City, Karma Jamtsho, Tashi Dorji, David Blake, Mark A. Lund, Eddie Van Etten

Research outputs 2022 to 2026

Urbanisation and impervious-cover expansion are reshaping riparian landscapes, particularly in mountain cities where steep terrain concentrates development along valley floors. This study examined spatiotemporal land-cover change within the regulated riparian corridors of Thimphu City, Bhutan, over a 25-year period from 1997 to 2022 using Landsat imagery, Random Forest classification and Google Earth Engine. Results show substantial transformation of riparian land cover, with impervious cover increasing from 26.14% to 32.63%, equivalent to an overall increase of 24.83%, while agriculture/barren/low-vegetation declined from 30.59% to 26.01%, equivalent to an overall decrease of 14.98%. A modest increase in detectable vegetation cover was also observed, …

June 2026, Office Of Research

Research Update

No abstract provided.

Enhancing Urban Refueling Efficiency: Strategies For Sustainable Mobility And Economic Impact, Navid Hashemi Taba, Iftekhar Ahmad, Ahdieh Sadat Khatavakhotan

Research outputs 2022 to 2026

In response to increasing concerns about operational inefficiencies and environmental impacts at petrol stations, this operational research investigates strategies to enhance refueling efficiency across 103 stations in Perth. A pilot study employing observational methods and time-motion analysis established ideal benchmarks for core refueling activities. Empirical analysis of driver behavior during high-demand periods—often driven by fuel price discounts—and regular off-peak hours revealed significant performance gaps, highlighting substantial opportunities for efficiency improvements. Eliminating non-essential tasks could yield time savings of up to 67% during peak periods and 45% during off-peak periods. Economic analysis demonstrated mutual benefits when refueling processes align with these …

Multiple-Nozzle Sprays: Comparison To Single-Nozzle Sprays And Role Of Directional Conditional Filtering, Farzad Hossain, Matthew J. Cleary, Yasir M. Al-Abdeli, Mehdi Khiadani

Research outputs 2022 to 2026

Spray-based droplet evaporation systems used in desalination and cooling applications depend on both nozzle arrangement and the interpretation of measured droplet behaviour. This study examines (i) how multi-nozzle configurations differ from single-nozzle characteristics and (ii) how ensemble-averaged measurements change when droplets are separated according to their motion direction (upward or downward). Atmospheric water sprays generated by full-cone spray nozzles were investigated using Particle Image Velocimetry (PIV) for droplet axial velocity measurements and Shadowgraph imaging to determine droplet size and count. Directional filtering was performed using Large Eddy Simulation (LES), validated against experiments. Single- and dual-nozzle configurations were tested with horizontal …

Gas Adsorption Behavior In Organic-Rich Carbonate Source Rocks: Insights Into Hydrogen Storage, Methane Recovery, And Co2 Sequestration In Oil Shales, Muhammad Usman, Muhammad Ali, Tawanda Matamba, Alireza Keshavarz, Stefan Iglauer, Hussein Hoteit, Volker Vahrenkamp

Research outputs 2022 to 2026

Gas adsorption in unconventional petroleum source rocks, e.g. organic-rich mudrocks and shales, is influenced by significant heterogeneities in organic and inorganic composition, structure, and pore networks. An understanding of the interplay between these properties is essential for optimizing hydrocarbon extraction, CO2 sequestration, and hydrogen storage in such reservoirs. Herein, the factors controlling hydrogen, methane, and CO2 adsorption in unconventional organic-rich Jordan source rock samples are investigated, focusing on the roles of organic matter, mineral composition, and textural properties. The samples are characterized via multiple techniques, followed by adsorption experiments. The results reveal that H2 has the lowest adsorption capacity, being …

The City As Showroom: Singapore And The Rise Of The "Urban Solutions" Industry, Sol Andrew Stokols

Research Collection College of Integrative Studies

This article uses the concept of the “city as showroom” to describe an emergent logic shaping urban development that stems from the growing importance of “urban solutions” as an industry. Focusing primarily on Singapore, the article examines how certain urban districts and high-profile sites are conceptualized as “showrooms” for the infrastructure and urban technologies they aim to export around the world. The idea of the “city as showroom” combines aspects of the curation of a city’s image through showcase districts, as well as “testbed urbanism” seen in certain smart-city projects. Singapore's need to reproduce itself as a model of urban …

Emerging Biomaterials For Next-Generation Wound Healing: From Infection Control To Tissue Regeneration, Unqa Mustafa, Aiman Kaleem, Syeda Zunaira Bukhari, Hamna Riaz, Maryam Iftikhar, Muhammad Usman Munir, Xianghao Xiao, Mingwu Shen, Xiangyang Shi, Mostafa Yazdi, Ayesha Ihsan

Chemical and Biochemical Engineering Faculty Research & Creative Works

Wound healing is a multifactorial biological process that regenerates damaged tissues through a series of molecular and cellular events in a coordinated manner. An interruption in this cascade can lead to impaired healing, especially in diabetic complications, where effective treatment is crucial for controlling infections and promoting tissue regeneration. Recent advances in bioengineering and digital health have catalyzed the development of next-generation wound therapies capable of actively modulating the wound microenvironment, promoting regeneration, and enabling real-time clinical assessment. This review summarizes the fundamentals of physiological wound healing and highlights the significant developments in biomaterial dressings and scaffolds, 3D bioprinting, as …

The Bridge Newsletter Summer 2026, Missouri University Of Science And Technology

The Bridge Newsletter

Features:

• Networking Nights

• McEvilly named president of S&T's Board of Trustees

• Forsee joins Kummer Foundation Board

• Lamitola named Outstanding Engineer in Government

Pso-Style Social Influence In An Ant Colony Algorithm For Continuous-Domain Optimization, Ashraf M. Abdelbar, Donald C. Wunsch

Electrical and Computer Engineering Faculty Research & Creative Works

ACOR is a well-established Ant Colony Optimization (ACO) algorithm for continuous-domain optimization. In this paper, we propose an extension (which we call ACOR∗) in which several fundamental modifications are made to ACOR's solution construction process, including the incorporation of a social influence mechanism borrowed from Particle Swarm Optimization (PSO). Our modifications to the ACOR algorithm are intended to promote search diversity and combat premature convergence. We experimentally evaluate our proposal in the context of training feedforward neural networks for classification using 65 widely used datasets from the University of California Irvine (UCI) repository, as well as the optimization of several …

Multiplexed Fabry-Pérot High-Temperature Sensing Based On Dispersive Microwave-Photonic Frequency-Time Domain Analysis, Ruimin Jie, Chen Zhu, Bohong Zhang, Koustav Dey, Jie Huang

Electrical and Computer Engineering Faculty Research & Creative Works

We propose and experimentally demonstrate a multiplexed high-temperature Fabry-Pérot (FP) fiber sensing system interrogated by dispersive microwave-photonic frequency-time domain analysis (DM-FTDA). In the proposed architecture, incoherent broadband probing light is modulated by radio-frequency (RF) signals and then reflected by a parallel network of hollow-core photonic crystal fiber FP (HCPCF-FP) sensors. A chirped fiber Bragg grating provides strong dispersion to map the composite FP spectral response into a well-defined microwave transfer function. Unlike conventional optical Fourier-domain multiplexing that requires deliberate cavity-length allocation, the proposed approach achieves multiplexing via delay-dominated discrimination. Distinct delay fibers are assigned to each sensor branch, and an …

Sainik Vol 1 Issue 3, Sastra Deemed To Be University

SAINIK

No abstract provided.

Digital Advertising Regulation And Consumer Protection Policy In The Uae: Ethical Challenges And Consumer Trust In The Digital Era, Harith Yas, Wided Dafri, Basma Kashmoola, Maytha Al-Ali, Omnia Salem, Ahmed Almufti

All Works

It is remarkable that the current research primarily aims to measure the extent to which UAE Consumers use various Digital Advertising Channels, as well as to evaluate e-marketing requirements and the degree of compliance in the United Arab Emirates. The Research, however, has employed a Descriptive-Analytical Approach, collecting data through a questionnaire that includes several questions targeting a sample of 150 consumers from different Emirates. The data were analyzed using SPSS and statistical method s, including complaint analysis, Interest Frequencies, and graphical representations. Our results show that social media is the most widely used digital advertising channel, accounting for 34% …

A Machine Learning Framework For Residential District Cooling: Forecasting Consumption, Explaining Drivers, And Evaluating Decarbonization Pathways, Kadhim Hayawi, Husna Maliakkal, Neethu Venugopal, Thanveer Musthafa Hussain, Gomathi Bhavani Rajagopalan

All Works

District Cooling Systems (DCS) in the Middle East, while energy-efficient, are significant contributors to carbon emissions. This study introduces a novel framework to decarbonize DCS operations by integrating predictive machine learning, explainable AI (XAI), and renewable energy planning, all grounded in extensive real-world data. Leveraging a unique dataset from 59 residential buildings in the UAE—including energy consumption, climate variables, and building features—we developed a high-fidelity cooling load forecasting model. Following a rigorous chronological validation methodology, the Random Forest model was identified as the most robust, achieving a strong performance (R² = 0.8256, RMSE = 11,668.31). Outdoor temperature was confirmed …

Access Denied: Financial Aid Inequalities And The Economic Impact On Daca Students, Teresa D. Jordan

Dissertations, Theses, and Capstone Projects

This capstone project argues that financial aid policies in the United States create a system of structural inequality that systematically denies Deferred Action for Childhood Arrivals (DACA) recipients’ equitable access to higher education. Drawing on peer-reviewed scholarship, federal policy data, and large-scale survey research, this paper demonstrates how the categorical exclusion from federal financial aid, inconsistent in-state tuition laws, and recurring DACA renewal fees form an interlocking barrier with profound psychological and economic consequences for a population that is deeply integrated into American society. These compounding barriers force students into a framework of constrained rationality, distorting their academic major choices …

Gramsci’S ‘Democratic Philosopher’ And The Concept’S Foundations In Marxian Social Ontology, Eli Recht-Appel

Dissertations, Theses, and Capstone Projects

This thesis deals with the term ‘democratic philosopher’ from Antonio Gramsci’s Prison Notebooks. In order to lay the groundwork for my distinct interpretation of the ‘democratic philosopher,’ I begin by providing an overview of Gramsci’s theory of the role of intellectuals in civil and political society. I then argue that the ‘democratic philosopher’ emerges from Gramsci’s typology of intellectuals but is a category which is both temporally and ontologically distinct from his more well-known concept of ‘organic intellectuals.’ ‘Organic intellectuals,’ intellectuals who co-develop alongside their fundamental social group or class, occupy a variety of cultural and political roles in …

Wageless By Design: Dependency In U.S. Visa Regimes, Cristina Ochoa Echeverri

Dissertations, Theses, and Capstone Projects

This capstone examines how U.S. dependent visa regimes create a population of migrants who are legally present but structurally excluded from paid work and independent legal status. Focusing on visa categories such as H-4, F-2, M-2, O-3, P-4, R-2, and TD, it argues that wagelessness is not incidental but structurally embedded in the legal design of temporary migration governance through employment restrictions, derivative legal status, and the tethering of dependents to a principal visa holder.

Using a qualitative, interpretive approach, this study draws on documentary and secondary sources as well as digital narratives from platforms such as Reddit. This capstone …