Digital Commons Network^™

Evaluating And Managing Ccr Variability At An Active Beneficial Use Clean Closure Site, John Garten, Bob Baker, Lee Lenhart

World of Coal Ash Proceedings

The basin is a 132-acre (534,200 square meter) coal combustion residual (CCR) disposal impoundment that has been undergoing closure-by-removal since 2021, with CCRs harvested for use in concrete manufacturing. Excavated CCRs are processed on-site through initial drying and screening before being routed through a thermal beneficiation process. Despite an extensive pre-closure CCR characterization program, pockets of material encountered in 2025 caused significant off-specification issues for the beneficiation feedstock that required immediate corrective action. To address this, a supplemental surveying, sampling, and on-site testing program was implemented to obtain additional grainsize and Loss on Ignition (LOI) data for active and upcoming …

Identifying And Controlling Landfill Construction Impacts To Stormwater Flow Paths, Kory Anstead

World of Coal Ash Proceedings

This presentation will examine the engineering challenges and lessons learned associated with construction impacts and altered stormwater flow paths in the vicinity of a Sediment Pond adjacent to a newly constructed landfill. During construction activities, the sediment basin liner experienced multiple instances of flotation. Early corrective measures were implemented as quick fixes; however, these proved ineffective and ultimately necessitated more comprehensive solutions once the underlying causes were better understood. The presentation will begin with an analysis of the initial liner flotation events, focusing on the conditions that led to the problem, the immediate responses, and the eventual engineered solution. It …

Three Use Cases For Interferometric Synthetic Aperture Radar (Insar) For Coal Ash Combustion (Ccr) Pond Closure Projects, Zach Boucias

World of Coal Ash Proceedings

Interferometric Synthetic Aperture Radar (InSAR) is a satellite-based radar system that uses electromagnetic pulses and advanced post-processing software to detect ground subsidence across large areas with millimetric precision. This paper has two primary objectives: (1) to outline the advantages and limitations of InSAR and (2) to present three specific use cases for InSAR in connection with coal combustion residual (CCR) pond closures. InSAR offers key advantages over traditional monitoring methods: remote monitoring without field intervention, full-surface coverage, all-weather and day/night operation, and high precision. InSAR also has limitations in connection with rapidly changing surface conditions, and the presence of water …

Harvesting Rare Earths From Coal Ash Using An Ionic Liquid, Laura Stoy

World of Coal Ash Proceedings

This presentation highlights a promising early-stage pathway for transforming coal fly ash from a long-term liability into a source of both critical minerals and construction materials. The speaker describes a recyclable ionic-liquid process that, at bench scale, demonstrates selective recovery of rare earth elements (REEs) from a wide range of U.S. fly ashes under mild conditions while preserving the treated solids for potential use as supplementary cementitious materials (SCMs). Attendees gain insight into why this chemistry is attracting attention: it avoids full acid digestion, shows strong preference for REEs over bulk metals, and enables repeated solvent reuse in a closed …

Testing Of Accelerated Pozzolanic Activity Of Fly Ash, Anne Oberlink, Tom Robl, Bob Jewell, Haley Johnson

World of Coal Ash Proceedings

The determination of the pozzolanic reaction in fly ash by ASTM strength activity index has been shown to be problematic, frequently producing false positives. The use of Wenner probe resistivity has been demonstrated to be rapid, simple and non-destructive method, producing no false positives. However, using this method and confirming it with other techniques finds that the reaction itself is slow with a dilatancy of 28 days or more before the measurements become discriminatory, a major drawback to this method. This study used high-temperature, high humidity curing of OPC-based mortars with various fly ash sources to determine how pozzolanic activity …

Innovative Analysis Of Groundwater Data For Scalable, Defensible, And Predictive Compliance, Shannon Zahuranec

World of Coal Ash Proceedings

Groundwater monitoring networks at coal combustion residual (CCR) facilities now yield dataset volumes that routinely exceed the capacity of traditional, univariate interpretation. This presentation introduces a scalable multivariate and machine learning (ML) framework that prioritizes understanding data structure before predictive models are applied. The workflow applies Principal Component Analysis and other multivariate statistics to groundwater datasets, to illustrate how unsupervised learning can rapidly reveal dominant sources and controls on impacted and unimpacted groundwater quality. The talk frames multivariate analysis as a practical portfolio management tool, emphasizing inference categories rather than concentrations or site identifiers. Fleet-scale multivariate screening offers strategic advantages …

Subsurface Delineation Of Coal Combustion Residuals Using Multiple Geophysical Methods, Eric Hageman, Adam Rak, Thomas Jordan, Kate Mckinley

World of Coal Ash Proceedings

Geophysical techniques provide alternative methods of Coal Combustion Residual (CCR) delineation and characterization to supplement more invasive boring programs used for beneficial reuse planning. A demonstration project was designed to characterize the electromagnetic and seismic stratigraphy of CCR material and test the effectiveness of three geophysical techniques: Electrical Resistivity Imaging (ERI), Transient Electromagnetic (TEM) induction, and Multi-channel Analysis of Surface Wave (MASW). The demonstration project was completed at a dry-stack CCR unit containing a variety of CCR ash, gypsum, and thin layers of drainage aggregate (limestone). During a single-day deployment, several geophysical survey tests were conducted in specific areas of …

Geopolymers For Construction And Mining: Material Characterization And Application Prospects, Radoslaw Pomykala, Gabriela Fuks

World of Coal Ash Proceedings

Geopolymers have long been presented as an alternative to conventional concretes and cement-based binders, yet their practical use remains limited for various reasons. This paper examines both the material properties of such mixtures and their potential for broader application.

The study evaluated geopolymers produced from different types of fly ash, including typical siliceous ashes and ash with elevated CaO content. The influence of mixture components, such as solids content, activator type, and sample preparation and curing methods, on technological properties was investigated. Research covered fresh mixtures—rheological behavior and setting time—as well as hardened samples using mechanical testing, XRD, and SEM. …

Riki&Dolphin: Real Time Data Transmission From The Bottom Of A Cave To A Website, Luca Tringali, Giacomo Canciani Dr., Tecla Tripari, Alexander Debenjak, Caterina Bearzotti

International Journal of Speleology

Coming from over 10 years of experience in cave monitoring in northeast Italy, Gruppo Speleologico Talpe del Carso, has designed Riki and Dolphin: customizable, low cost, and easy to assemble tools for getting real time data transmission from the bottom of a cave, even underwater, to a webserver. Their use has been tested to monitor air temperature inside the Abisso Bonetti Cave (Classical Karst, Italy), proving for the first time that a cave in Gorizian Karst can systematically be colder than the outdoor temperature even in winter, recording an internal temperature even lower than 0°C. The Dolphin device can be …

Evaluating The Properties Of Ohio Ponded Fly Ash For Reliable Use In Concrete Mixtures, Ayah Suliman

World of Coal Ash Proceedings

Concrete producers are under pressure to reduce the carbon footprint of concrete while maintaining a reliable supply of supplementary cementitious materials. Meanwhile, U.S. coal production in 2023 declined to less than half of its 2008 peak, significantly reducing the availability of fresh ASTM C618 compliant fly ash. At the same time Ohio contains more than 145 million cubic yards of coal combustion residuals stored in ponds, representing a large and underutilized source of potential fly ash for concrete applications. This study evaluates the suitability of harvested Ohio ponded fly ash for use in concrete through practical and specification-driven testing aligned …

Benefits Of Geophysical Imaging For Coal Combustion Residuals Management Unit Delineation, Gabriel Herbert

World of Coal Ash Proceedings

Gabriel J. Hebert1, Gregory B. Byer1, Margaret Gentile1 1Arcadis U.S., Inc., 2839 Paces Ferry Road SE, Suite 1000, Atlanta, GA 30339 KEYWORDS: geophysical imaging, delineation, CCRMU ABSTRACT Under the 2024 Legacy CCR Rule detailed in 40 CFR Part 257, Section 75, all electric utility companies with a known legacy coal combustion residuals (CCR) surface impoundment are required to conduct a facility evaluation to identify the location, dimensions, and volumes of CCR placed and remaining on site and to assess structural stability. At a minimum, the presence or absence of CCR management units (CCRMUs) must be documented through a desktop records …

Extracting Rees From Refuse Pile Coal, Howard Mcclintic

World of Coal Ash Proceedings

Concurrent Technologies Corporation (CTC) has a patented high temperature electric arc furnace (EAF) technology that reaches 4000-degree centigrade temperature(s). Such high temperatures are sufficient to extract each of the seventeen rare earth elements (REEs) from coal fly ash to ultimately manufacture diverse magnets. Neodymium iron boron magnets (NdFeB) are the strongest magnets produced, heretofore almost exclusively by the Chinese. For national security reasons, CTC has become part of the domestic supply chain, as an alternate to China. Scaling is the next hurdle, since our demonstration unit is operational. Nationwide, coal is decreasingly used as a fuel for generating electricity. However, …

Basin Ash Harvesting At The Brunner Island Station, Kyle Flynn

World of Coal Ash Proceedings

Tribo-electrostatic separation has been used for the commercial beneficiation of coal combustion fly ash to produce a low carbon product for use as a cement replacement in concrete for over twenty-five years. With 24 separators in 18 coal-fired power plants and cement plants across the world, ST Equipment & Technology LLC’s (STET) patented electrostatic separator has been used to produce over 25 million tons of low carbon product that has been recycled for use in concrete or cement production. STET has developed and commercialized a new process for beneficiation of reclaimed fly ash from landfills and ponds that utilizes fly …

Adaptive Design And Execution In Ccr Pond Closure: A Case Study Of Technical And Regulatory Innovation, Jay Mokotoff, Angie Casbon-Scheller

World of Coal Ash Proceedings

Closure by removal (CbR) of CCR impoundments presents complex challenges, particularly when unique hydrogeologic conditions exist. This presentation highlights the advance planning and ongoing closure of a Midwestern utility’s East Ash Pond (EAP), a relatively small facility with highly atypical characteristics. To comply with the CCR Rule, sluicing to the EAP ceased while the generating unit remained operational. Fly ash handling was converted to a dry system for beneficial reuse; however, wet sluicing of bottom ash continued. To avoid constructing a new regulated CCR impoundment, an innovative geotextile tube containment area (GTCA) was designed and implemented to capture bottom ash …

Evolution Of Instrumentation Use For Ccr Unit Decision Making, Nick Mcclung, Victoria Bierwirth, Matt Bishop

World of Coal Ash Proceedings

Over the past decades, the power industry’s instrumentation needs and requirements have shifted to meet industry standards and regulations. In the early 2010s, piezometers and slope inclinometers were the primary types of instrumentation used to evaluate the stability of a CCR Unit. Some of the piezometers and slope inclinometers installed are still in use today to evaluate long-term stability for operations and closure. Since this time, additional instrument types were selected for installation including observation wells and temporary wells to further understand phreatic conditions within the CCR Unit. As utilities are faced with closures including removal of free liquids, data …

Gun Rights And Public Safety: A Constitutional Tension, Kirsten Zonkowski

NSU Undergraduate Law Journal

This paper examines the constitutional tension between gun regulation and the right to bear arms in the United States. By analyzing landmark Supreme Court cases and major legislative developments, tracing the historical foundations of the Second Amendment, exploring judicial interpretations, and identifying ongoing doctrinal challenges, it highlights  the central constitutional conflict: the Second Amendment guarantees an individual right to keep and bear arms, yet that right often clashes with the government’s responsibility to protect citizens and maintain public safety. Courts and legislatures continue to struggle to define the limits of governmental authority without infringing upon fundamental constitutional rights, revealing an …

The Prosecution Of Nicolás Maduro, Jose Manuel Vanegas

NSU Undergraduate Law Journal

This paper examines the complex legal and political issues that came from the capture of Nicolás Maduro by United States authorities, an event that has generated controversy in both domestic and international legal debate. It begins by providing the necessary background of Maduro’s rise to power, his role as president, and the broader political and economic conditions of Venezuela under his administration. The paper then analyzes the criminal charges brought against him in U.S. federal court, including allegations of narco-terrorism, conspiracy to import cocaine, and related offenses tied to alleged collaborations with transnational criminal organizations. Building on this foundation, the …

Property And Social Justice In Thomas Paine’S Agrarian Justice: Revaluating Modern American Property Law, Amanda Infante

NSU Undergraduate Law Journal

This paper critically examines the philosophical core of property law through the lens of Thomas Paine’s Agrarian Justice. Paine challenges the conception of property as a natural right, instead theorizing land ownership as a social construct contingent on communal needs and obligations. This framework is situated as an intellectual precursor to contemporary legal debates regarding the legitimacy and moral limits of private property. The analysis engages with pivotal Supreme Court decisions, including Village of Euclid v. Ambler Realty Co., Penn Central Transportation Co. v. New York City, and Lucas v. South Carolina Coastal Council, to set …

Current Atmosphere Of Artificial Intelligence Liability: Implications And Best Practices For Legal Professionals And Ai Providers, Alyssa Heinze

NSU Undergraduate Law Journal

The rapid integration of artificial intelligence into the legal profession has transformed legal research, drafting, and decision-making, while simultaneously introducing novel ethical, regulatory, and liability risks. As attorneys increasingly rely on generative AI systems, concerns surrounding hallucinations, bias, confidentiality breaches, and deceptive outputs have led to heightened scrutiny for both legal professionals and AI developers. This paper examines the current and emerging landscape of artificial intelligence liability in the United States. It gives particular attention to the absence of a comprehensive federal regulatory framework, the constitutional controversy surrounding Executive Order 14179, and its preemption of state AI legislation.

By analyzing …

The Current Legal Landscape Of The War On Terror; An Analysis Of The 2001 Authorization For Use Of Military Force And Its Constitutionality, Scope And Applicability, Avalyn Crosson

NSU Undergraduate Law Journal

This paper will examine the 2001 Authorization for Use of Military Force [hereby known as “The Authorization”] passed by Congress in the wake of September 11, 2001. For the past two decades, the applicability and legality of its application have been called into question by both Congress and the public. While controversial, The Authorization continues to be the central legal authority for counterterrorism operations against Al-Qaeda and affiliated forces. Signed into law by President George W. Bush, The Authorization mirrors the urgency of defending against further terrorist attacks and the demand by the American public to bring those responsible to …

The Manifestation Of George Orwell’S 1984 In The Legal Profession’S Use Of Ai, Alexa Cedras

NSU Undergraduate Law Journal

George Orwell’s 1984 tells the chilling story of an oppressive regime that uses information control and manipulation to further its political agenda. Within the realm of 1984, the Party, the head of the regime, weaponizes instruments, such as a telescreen, to subject citizens to ongoing surveillance with the promise that any suspicious activity will be punished. In furtherance of that agenda, the Party controls every existing narrative of the past, present, and future, using their authoritarian position to alter primary and secondary sources for their benefit. Lastly, by creating a new language to serve as a linguistic constraint, the Party …

“Supreme Court, Tear Down This Wall!”: Kennedy V. Bremerton School District And The Erosion Of The Barrier Between Church And State, Ari Allon

NSU Undergraduate Law Journal

This Article conducts a critical examination of Kennedy v. Bremerton’s ruling, which replaced the Lemon test with the historical practices and understandings test. Following a brief background on the Religion Clauses’ jurisprudence, the author contests that the historical practices and understandings test fails to adhere to long-held Supreme Court reasoning behind the creation of the Religion Clauses. This new test is likewise an insufficient framework for determining Establishment Clause violations.

The Article continues with an analysis on the conflicting fact patterns between the majority and dissenting opinions of Kennedy v. Bremerton. The author then discusses the precedential impact …

Merely Bystanders: Understanding And Overcoming The "Appalling Silence Of The Good People”, Catherine A. Sanderson

Heroism Science

This article reviews classic and contemporary research on the psychological processes that contribute to silence and inaction in the face of problematic behavior. In ambiguous situations, people look to others for cues, but mutual hesitation can result in collective inaction. In group contexts, diffusion of responsibility reduces people’s sense of obligation to intervene, decreasing the likelihood that help is offered. Additionally, fears of social and professional costs—such as rejection, ostracism, or reputational harm—discourage speaking up, reflecting a broader human sensitivity to social pain. The article concludes by outlining evidence-based strategies for overcoming bystander inaction, including skills-based training, opportunities for practice, …

Communication Competency And Intercultural Adaptation Of Multinational Company Leaders In The Local Cultural Context, Andi Kurniawati S.E., M.M., Dr. Fuad Mas'ud , Mir

International Conference on Business and Management Research (ICBMR)

This study discusses the role of intercultural communication competencies of leaders in the context of multinational companies in Indonesia. The background is a multicultural global business landscape, where the ability to communicate across cultures is key to organizational success. The objectives of this research are to identify the forms of intercultural communication competencies that emerge in interactions between foreign leaders and local employees, to explore leaders' communication adaptation strategies in the Indonesian cultural context, and to analyze how local cultural dimensions such as high communication context, power distance, and collectivism influence the effectiveness of leadership and communication styles of multinational …

System And Method For Relational Matching Using Non-Presentational Behavioral Signals With Pre-Exposure Bilateral Model Correction, Joseph Jm Walker

Defensive Publications Series

This disclosure establishes prior art for a computer-implemented system and method for privacy-first, values-aligned relational matching and community formation. The system is defined by a fixed operational sequence: private reflection, behavioral observation, simulated interaction modeling, bilateral correction, and conditional identity revelation. Behavioral modeling is performed on non-presentational behavioral signals—user-generated data produced in the absence of a perceived audience—thereby reducing incentive for strategic self-representation and mitigating data distortion common in existing social and dating platforms.

A Behavioral Pattern Recognition Engine (BPRE) generates compatibility distributions grounded in established relational research frameworks. A Simulation and Correction Interface (SCI) presents interpretive models of potential …

Gci Aurora-Grid Ev Structural Battery Pack (G-Sef), Michael Victor Caldwell Mr.

Defensive Publications Series

The Aurora-Grid EV Battery Pack (G-SEF) is a next-generation electric vehicle battery pack architecture that replaces conventional EV pack structures—housing, cooling plates, and busbar assemblies—with a unified gyroid-based structural-energy frame.

The system is designed specifically for electric vehicle applications, where pack-level mass, thermal bottlenecks, and interconnect complexity limit charging speed, range efficiency, and long-term durability.

By embedding mechanical load-bearing, thermal distribution, and electrical routing into a single structural lattice, the design reduces subsystem redundancy while maintaining compatibility with standard lithium-ion EV cells (LFP/NMC).

The result is a structurally integrated EV battery pack intended to improve:

• driving range efficiency (mass reduction) …

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The #Blackgirlmagic Of Educational Leadership: Self Identity And Leadership, Sascha Elayne Naa Yarkai Quartey

Educational Leadership Theses, Dissertations, and Student Creative Activity

The ongoing underrepresentation of Black women in PK–12 principalships and district-level leadership roles impacts equitable representation in educational decision-making spaces and the opportunities for students to see leaders who reflect and affirm their identities. Existing research highlights barriers such as hypervisibility and invisibility (Alfred, 2018), isolation, stereotype threat, and limited mentorship (Dumas, 2022; Julien, 2019), and yet these experiences may not be connected to leadership theory in ways that honor the resilience, cultural knowledge, and transformative practices Black women enact. This study addresses that gap through an autoethnographic examination of a personal leadership journey as a Black woman in PK–12 …

Comparative Analysis Of Antegrade And Retrograde Nailing For Proximal, Shaft, And Distal Femur Fractures, Saahil Noupada

Rowan-Virtua Research Day

Background:

Antegrade and retrograde intramedullary nailing are widely used for femoral fractures, yet their relative advantages across fracture locations remain debated. This study compares union rates, time to union, malunion, and functional outcomes between approaches, stratified by AO/OTA classification.

Methods:

A systematic review of PubMed, Embase, Cochrane Library, Web of Science, and Scopus (2015 to 2025) was performed. Studies reporting outcomes of antegrade and/or retrograde nailing for proximal (31), diaphyseal (32), and distal (33) femoral fractures were included. Data on demographics, fracture classification, fixation method, and outcomes were extracted. Risk of bias was assessed using ROBINS-I. Pooled estimates were calculated …

Medical Providers’ Perspective On Barriers Faced By Intellectual And Developmental Disabled (Idd) Patients From Medically Underserved Backgrounds, Mayra A. Flores

Rowan-Virtua Research Day

•Complexities of obtaining healthcare access can be difficult for all patients across the board, so much so that it’s viewed as a maze. Studies have shown that these challenges are added on for medically underserved communities.2-3 Some of these challenges include insurance, language barriers, appointment availability, stigma, financial limitations and lack of transportation.2 •Identify the barriers that patients with intellectual and developmental disabilities (IDD) from medically underserved backgrounds face in healthcare access. •Intellectually and developmentally disabled patients from medically underserved communities face exacerbated barriers in healthcare access. •Participating medical providers from the Regional Integrated Special Needs Center (RISN) – Sewell …

Management Of Libman-Sacks Endocarditis: The Role Of Anticoagulation And Immunosuppressive Therapy, Klaudia Matanaj, Demi Poulathas, David Altimore

Rowan-Virtua Research Day

Background: Libman-Sacks endocarditis (LSE) is a nonbacterial thrombotic endocarditis detected in 10-40% of patients with systemic lupus erythematosus (SLE), depending on imaging modality. LSE is strongly associated with antiphospholipid syndrome (APS). The condition significantly increases the risk of cerebrovascular accidents and inpatient mortality compared to SLE without cardiac involvement. Despite these serious complications, optimal management remains uncertain. Objective: To review the current evidence on the pathophysiology and management of LSE. Methods: A literature review was conducted using 12 peer-reviewed articles addressing LSE pathophysiology, clinical outcomes, and treatment strategies. Results: Combination anti-inflammatory and antithrombotic therapy achieved 76% …