Digital Commons Network^™

Capillary Pressures Of Hydrogen-Brine In Carbonate And Dolomite Rocks Under Stress And With Pore Pressure, Nilesh Kumar Jha, Faisal Awan, Mathieu Roger, Alireza Keshavarz, Stefan Iglauer

Research outputs 2022 to 2026

The recent discovery of high purity natural hydrogen in South Australia prompts the need for hydrogen-brine capillary pressure data to understand the behavior of fluid movement in the rock matrix. Furthermore, this investigation provides deeper insights into the suitability of carbonate reservoirs for potential large scale hydrogen storage and its deliverability. We measured core-scale drainage and imbibition capillary pressures for hydrogen-brine systems in limestone and dolomite under stress and hydrogen pore pressure, using advanced centrifuge techniques. Drainage capillary pressures range from 0.23 MPa (33.2 psi) to 0.02 MPa (3.2 psi) at 57.3-80.2% brine saturation in limestone and 72.7-99.8% in dolomite …

Informing The In-Water Humpback Whale (Megaptera Novaeangliae) Interaction Management Program In The Ningaloo Marine Park, Western Australia, Julian A. Tyne, Holly Raudino, Lyn Irvine, Chandra Salgado Kent, Kelly Waples

Research outputs 2022 to 2026

Introduction: Whale and dolphin watching tourism continues to expand globally, generating substantial economic benefits for coastal communities. However, ensuring that tourism activities remain safe, sustainable, and do not adversely affect cetacean populations remains a significant management challenge. This study evaluated humpback whale (Megaptera novaeangliae) distribution in relation to the intensity of commercial in-water interactions at the commencement of a tourism program off Ningaloo Marine Park (NMP), Western Australia.

Methods: Aerial surveys were conducted in 2016, 2017, and annually from 2022 to 2024 to assess humpback whale distribution and abundance, while vessel-based Electronic Monitoring System data were used to quantify commercial …

A New Reptile Search Algorithm For An Intelligent Video Retrieval System, Ansam Nazar Younis, Fawziya Mahmood Ramo

Baghdad Science Journal

The increasing volume of videos produced and shared via smart devices has made indexing and retrieving them a clear challenge. Current retrieval systems, such as specialized video retrieval systems, rely on text-based searches, which often misrepresent and frequently result in erroneous descriptions of the requested video, particularly when it comes to videos about certain specialities like security or medical procedures that are hard to describe. As a result, we developed a model that handles information-rich video queries, making it easier to find related videos that are specifically relevant to the user's needs. This paper proposes a new method for indexing …

Representations Of Cartel Leaders In Narcocorridos: A Reflexive Thematic Analysis, Gael Gamboa

Theses and Dissertations

Narcocorridos have become one of the most recognized expressions of narcoculture in Mexico. Despite growing scholarly interest in narcoculture, relatively few studies have examined how cartel leaders are represented across narcocorridos. This study addresses this gap by examining the symbolic representations of Joaquín “El Chapo” Guzmán, Miguel Ángel Félix Gallardo, and Amado Carrillo Fuentes in narcocorrido lyrics. The study is guided by cultural criminology and subculture theory; this study employed a qualitative research design using reflexive thematic analysis. A purposive sample of 25 narcocorridos was analyzed to identify recurring patterns in the representation of cartel leadership. As a result, six …

Personal Authenticity For Engagement And Transfer In Introductory Cybersecurity Education, Daniel T. Hickey, Ronald J. Kantor

Journal of Cybersecurity Education, Research and Practice

Abstract—This conceptual/theoretical paper explores how personal authenticity might promote generative learning in introductory cybersecurity courses. Generative learning transfers confidently to future educational, professional, personal, and testing situations. This cycle of design-based research addresses the concern that more typical professionally authentic contexts (e.g., hospitals, banks, etc.) may be alien and overwhelming to many students, particularly those in introductory courses and/or from non-professional families and communities. If so, this leads to “inert” knowledge that does not transfer. Personal authenticity is rooted in expansive framing, a modern theory of learning transfer. We reframe expansive framing as personal authenticity to make it …

Spot: A Cubesat Mission For High-Resolution Monitorig Of Anthropogenic Sulfur Emissions, Carla Roesch, Colleen Golja, James Custer, Catherine Ember, Jerome Woodwark, Andrew Matheson, Joshua Vande Hey, Sonymol Vk, Steven Heer, Zixuan Gao, Tim Trent

Small Satellite Conference

Resolving individual industrial sources of SO₂ to constrain aerosol forcing — one of the largest remaining uncertainties in Earth's energy budget.

The Varieties Of Precaution: Which Risks, Whose Attitudes?, Tomasz Żuradzki

Animal Sentience

The Edge of Sentience offers an ambitious and timely institutional framework for proportionate precaution under uncertainty about sentience. Its systematic treatment of empirical and theoretical uncertainty across diverse cases is a major contribution. Focusing on the problem of identifying and weighing different risks when designing proportionate precautions, this commentary suggests three areas in which Birch’s framework could be developed further: a more domain-sensitive justification of the priority given to avoiding under-attribution; a clearer distinction among competing forms of risk aversion and their divergent policy implications; and a fuller explanation of how the framework generates different recommendations across cases.

‘Passing’ The Baton Of Trauma: Queer Failure Of The Women’S Sport Policy Working Group’S Anti-Trans ‘Position’, Meredith M. Bagley, Mary Anne Taylor, Sarah F. Price

Publications and Research

Engaging in critical rhetorical theory and methodology, we interrogate the contemporary landscape of anti-trans backlash in women’s sport. Specifically, we read the ‘TERF wars’ (Pearce et al.) across critiques of biofeminism (Pape) and whiteness (Fischer) while drawing upon critical social science research into trauma-bonding, bullying, and the structural impacts of gender verification policies. Our analysis focuses on the Women’s Sports Policy Working Group (WSPWG), offering a trauma-informed reading of the WSPWG’s ‘Position’ statement to illuminate how lesbian female athletes who were previously slandered for failing to meet femininity norms in sport are unable to overcome that trauma to recognize and …

Deep Learning-Based Burned Area Mapping Of California Wildfires Using Sentinel-2 And Landsat-8 Imagery Enhanced With Super-Resolution Techniques, Youngmin Seo, Seung Hee Kim, Menas Kafatos, Jinsoo Kim, Yangwon Lee

Institute for ECHO Articles and Research

The increasing frequency of wildfires under a changing climate has led to extensive ecosystem destruction, highlighting the need for reliable burned area assessment using satellite imagery. Single-satellite data are constrained by observation gaps and interference from smoke and clouds, whereas multi-satellite data fusion can mitigate these limitations. Nonetheless, the fusion techniques still encounter challenges such as spatial information loss from resolution differences and cross-satellite domain mismatch. This study presents a burned area mapping framework that integrates super-resolution (SR) with transfer learning to address spatial and domain gaps in multi-satellite data. Specifically, Landsat-8 imagery is super-resolved to 7.5 m resolution, and …

A Stackable Multi-Mppt Power Architecture With Paralleled Inputs For Scalable Cubesat Solar Energy Harvesting, Muhammed Syedali N., Anamika A. Kamath, Nithin Krishnan S. S., Ashfaque K. P., Sijo George, Arun P., Jr-Chiun Roger Tsai, Tensae Ali, Jesmin Jose, Athira B. S.

Small Satellite Conference

In traditional CubeSat configurations, the Maximum Power Point Tracking (MPPT) circuit acts as a critical single point of failure because all harvested solar energy is funneled through a single, non-redundant conversion stage. Consequently, the failure of this individual component completely blocks power delivery to the system, permanently stranding otherwise healthy solar arrays and batteries and causing catastrophic mission termination.

This work introduces a modular, stackable solar energy architecture that distributes power conditioning across multiple identical, autonomous modules connected to shared PV and battery buses. By relying purely on analog input-voltage regulation at a common operating point, it eliminates radiation-vulnerable digital …

Autongc Flight Opnav Experiment Results On Capstone, Andrew J. Liounis, Sun Hur-Diaz, Behnam Azimi, Nichalas L. Cason, Chris R. Gnam, Grant Hecht, Steven Z. Queen, Michael J. Romeo, Sean R. Semper, Nathan Stacey, Andrew Tennenbaum, Daniel G. Berdugo, Carl J. De Vries, Benjamin Leser, Anne Long, Liam A. Greenlee, Joseph W. Patton, Steven B. Slegel, Isaac R. Witte

Small Satellite Conference

Summary: We successfully demonstrated on-board automated optical navigation (OpNav) in a lunar near rectilinear halo orbit (NRHO) using images of the Moon, the Earth, and other solar system bodies, advancing the technology readiness level (TRL) of the autonomous guidance navigation and control (autoNGC) OpNav capabilities from 5 to 7.

Resilient Positioning And Resident Space Object Identification Using Miniaturized Star Tracker Hardware, Justin Kruger, Aviad Golan, Simone D’Amico

Small Satellite Conference

Robust alternative positioning, navigation, and timing (APNT) is a critical enabling capability in orbits where GNSS availability is degraded or denied.

Timely, accurate space situational awareness (SSA) knowledge is necessary for autonomy and safety in dynamic space environments.

Swap: An Ai-Enabled Cubesat For Low-Latency Space Weather Alerting, Miles H. Currie, Douglas Franz, Paul Kocyla, Omar Sharaf, Sarvesh Garimella

Small Satellite Conference

1 — Background

• Growing dependence on space-based assets (telecom, transport, grid, GPS) = growing space-weather exposure
• A Carrington-class storm today would mean cascading failures and losses in the trillions
• Current assets (e.g. GOES, ACE, DSCOVR) are excellent but large, costly, and with minutes to hours of alert latency from ground processing; weak coverage off the Earth–Sun line, where multi-point views could untangle the solar flare/SEP/ CME chain
• The Space Weather Alerting Platform (SWAP) concept mission (right) is a low-cost, 3U cubesat solution for proliferated solar monitoring with low-latency onboard AI alerting

Environmental Durability Of Silver Teflon Fep Thermal Control Tape Protected By A Sio2/Nicr Backcoat, Warren Su, Brian Phan

Small Satellite Conference

Silver Teflon® FEP thermal control tapes are widely used on small satellites due to their low solar absorptance and high infrared emittance. However, long-term operation in low Earth orbit (LEO) is often limited by degradation mechanisms associated with atomic oxygen (AO), ultraviolet (UV) radiation, and thermal cycling. In particular, silver–adhesive interactions and defect-mediated undercutting have been identified, based on results from NASA’s Long Duration Exposure Facility (LDEF) mission (5.7 years in LEO), as primary contributors to the increase in solar absorptance over mission life. This work investigates a SiO₂/NiCr protective backcoat film stack sputtered on top of the …

Hospital Charity Care And Medical Debt Among Low-Wage Workers In The United States, Mathieu Despard, Stephen Roll, Eva Stahl, Camila Salvagno, Ruth Lande

Center for Social Development Research

With one in five low-wage workers reporting medical or dental debt they cannot afford to pay, financial assistance programs (also known as charity care) are an important resource. Federal law requires nonprofit hospitals to offer such programs, but evidence suggests that workers experience administrative burdens in learning about and applying for the assistance. Drawing upon data from the Workforce Economic Inclusion and Mobility (WEIM) survey, this brief presents findings on associations between the characteristics of low-wage workers and their experiences with financial assistance programs. The brief also shares examples of how hospital policies and patients’ needs may not align, presenting …

Cultural Tailoring And Co-Design Of Telehealth Interventions With Immigrants And Refugees, Saleema Allana, Thuvaraha Jeyakumaran, Dhruv Rathod, Maham Khan, Darryl Ku, Raza M. Haider, Victoria Smye, Richard Booth

International Nursing Research Congress (INRC)

Background: Immigrants and refugees face significant barriers in accessing and using telehealth.(1,2) Although cultural tailoring and co-production approaches are recommended,(3) little is known about how deeply these practices are integrated into existing telehealth interventions for these populations.

Purpose: The purpose of this scoping review was to map the current evidence on telehealth interventions involving immigrants and refugees, assess how cultural tailoring was applied using the Cultural Sensitivity Framework, and evaluate the extent to which co-design approaches were used.

Methods: We conducted this scoping review following PRISMA-ScR.(4) Systematic search was undertaken in MEDLINE, CINAHL, Scopus, and Cochrane using telehealth, immigrant, and …

Feasibility Of A Nurse Led Sailing Program To Enhance Resilience Among Autistic School Aged Children, Myrian Sze Nga Fan, William Ho Cheung Li, Laurie Long Kwan Ho, Kay Rawbone, Kai Chow Choi, Rob Allen, Trinitey Letterman, Sek Ying Chair

International Nursing Research Congress (INRC)

Promoting resilience and mental health among autistic children remains a global health priority, consistent with the United Nations Sustainable Development Goal 3 and the World Health Organisation’s vision for inclusive, community based care. While existing interventions focus on functional outcomes, resilience among autistic children remains understudied. To address this gap, a nurse led community based sailing program was developed and implemented in partnership with Sailability Hong Kong.

A pilot assessor blinded, parallel group randomised controlled trial evaluated the program’s feasibility, acceptability, and preliminary effects. Children aged 7–12 years with autism diagnosis were recruited, then randomised to either: (1) an intervention …

The Impact Of Covid-19 On The Mental Health And Well-Being Of Black And Latinx Nurses In California, Jerry John Ouner, Patience Afulani, David A. Asakitogum, Nneka Umeh, Monica Getahun, Jaffer Okiring, Michael Denyu, Orlando Harris, Osamuedeme Odiase

International Nursing Research Congress (INRC)

On January 31, 2020, Santa Clara County reported California’s (CA) first COVID-19 case. As the pandemic unfolded, health systems were severely strained, and health care workers faced dual exposure risks from their communities and households alongside heightened occupational risk from direct patient care.1,2 For Black and Latinx nurses, COVID-19’s disproportionate impact on their communities intensified stress, fear, and uncertainty, and when combined with the demands of frontline work, greatly increased their risk of psychological distress and burnout. We examined COVID-19’s impact on the mental health and well-being of Black and Latinx nurses in CA.

Method: We conducted an explanatory sequential …

Developing Congenital Heart Disease Screening: Adult From Heart To Sole, Tami L. Jakubowski, Sarah Curtis, Carole Kenner, Marina Boykova, Simranjot Mann, Emma Cartnick, Mia Conners, Kayla Creedon

International Nursing Research Congress (INRC)

Introduction: “Adult From Heart to Sole” is a study exploring a non-invasive, low-cost screening method for congenital heart disease (CHD).

Methods: This pilot study explores identification of a specific crease on the sole of the foot as a marker for early detection of CHD in newborns. A Qualitrics survey was developed and distributed on social media platforms (Facebook, LinkedIn, etc) and the Adult Congenital Heart Association “Studies Recruiting Subjects” webpage. Participants were asked about demographic data, whether they have been diagnosed with a CHD and what type, if they have the specific crease on either foot, and if they have …

Nursing Beyond Borders: Ethics, Trust, And Relational Safety In Global Practice, Jitana P. Benton-Lee, Jerry John Ouner, Amy Beth Staley, Jasper Erwin Tolarba, Regina Yuen, Siobhan O'Connor, Charlotte Mcardle

International Nursing Research Congress (INRC)

Nurses encounter ethical dilemmas daily in clinical, community, and cross-cultural care settings. Relational ethics provides a guiding foundation for ethical nursing practice by emphasizing human connection, mutual respect, and shared meaning rather than rules, duties, or procedural norms alone. This workshop examines how relational ethics operates across borders, highlighting how nurses adapt their communication strategies, clinical judgment, and ethical reasoning to support individuals whose cultural values, histories, and expectations of care differ from their own. By framing ethics as relational rather than universal, the session positions relational safety as an essential precursor to ethical decision-making and professional accountability.

The workshop …

Making An Impact! Development Of An Interprofessional Clinical Effectiveness Training Program, Katherine Melton, Kara Misto, Ashley Perry, Michelle Marie Parent, Christian Keenan, Olivia Young, Katherine Mason

International Nursing Research Congress (INRC)

Achieving and maintaining meaningful change in patient safety outcomes remains an ongoing challenge.(1) Clinical Effectiveness Education (CEE) is a promising method to help address the challenge of creating sustainable change in healthcare. CEE is a comprehensive approach to improving patient safety by educating healthcare team members in methods to use best-evidence to inform care decisions.(2) Two foundational CEE strategies are Evidence-Based Practice (EBP) and Quality Improvement (QI). EBP and QI practices have both been shown to have a positive impact on patient safety and return on investment.(1,3) Despite its documented benefits, CEE is not typically covered in-depth in health-professions education …

Cover, Owen Isachsen

.RAW Journal of Art and Design

No abstract provided.

Full Issue, Michaela Velleno, Zoé Shaikh

.RAW Journal of Art and Design

No abstract provided.

Lightweight Open Source On-Spacecraft Machine Learning With Mlpack And F Prime, Ryan R. Curtin, Scott M. Gilliland, Sterling L. Peet

Small Satellite Conference

Onboard machine learning is an increasingly important topic in spaceflight systems, as machine learning and AI models are increasingly used for data processing, anomaly detection, attitude control systems, and other predictive applications. However, successfully deploying a machine learning model in a spaceflight computing environment is fraught with difficulty, as spaceflight computing environments are low-resource, but typical machine learning software solutions are implemented in languages like Python, which require an interpreter and other heavyweight dependencies. It is therefore virtually mandatory for any on-spacecraft machine learning to be written with lightweight toolkits that minimize dependencies and resource usage.

We demonstrate a solution …

A Miniaturized, High Geometric Factor, Electrostatic Analyzer For Fast Plasma Measurements, Dhiren Kataria, Justyna M. Sokol, Jianliang Lin, Camden Ertley, Jonathan Gasser, Guy Grubbs, Kwang-Joo Hwang, Michael Starkey

Small Satellite Conference

With advances in machining techniques that can manufacture high aspect ratio structures at high accuracy, cylindrical geometry electrostatic analyzers present a versatile alternative to spherical designs. We report on the development of the 3D Cylindircal And Tiny Spectrometer (3D-CATS), a novel space plasma analyzer that performs instantaneous 3D (multiple energy, azimuth and elevation angles) measurements, providing differential energy, wide field of view particle imaging in a compact, low-SWaP (size, weight and power) package.

The baseline analyzer design consists of a nest of 8 cylindrical analyzers, providing measurements of incoming particle energy distributions over an energy range of 10 eV to …

Optimization Of Orbit-Maintenance Strategies For Small Satellites In Cislunar Space, Timothy Lauinger, Bradley Cotten, Robert E. Zee

Small Satellite Conference

Renewed interest in lunar exploration and the development of a sustained cislunar economy has driven demand for low-cost missions supporting mapping, communications networks, navigation services, and scientific studies. Recent growth in rideshare opportunities to the Moon has made small-satellite architectures a viable and cost-effective approach for these missions. Successful execution of these missions, however, depends critically on fuel-efficient and reliable orbital insertion and maintenance strategies, as cislunar missions impose substantially higher delta V requirements than low-Earth orbit missions due to the inherent instability of low lunar orbits. Perturbations arising primarily from lunar mass concentrations drive secular growth in orbital eccentricity …

Nasa Stari Mission: A Formation-Flying Pathfinder For Space Interferometry, Akshat Dubey, Caden Burkhardt, Raven St. Clair, Austin Thomas, Tobey Chang, Shivani Sunil, Jacob Klingler, Bradley Bialke, Hannah Cherry, Adrien Boissy, Yethinder Ragav Lakshmi Kumar, Daniil Voloshin, Michael Meyer, John D. Monnier, James W. Cutler, Ethan Foss, Samuel Y. W. Low, Antonio Rizza, Simone D'Amico, Althea Noonan, Mark Gorrow, E. Glenn Lightsey, Melissa Flores, Alexa Lapinta, Albert Ostoja-Starzewski, Leonid Pogorelyuk, Gautam Vasisht, Kerri Cahoy

Small Satellite Conference

The STarlight Acquisition and Reflection toward Interferometry (STARI) mission is a NASA-funded two spacecraft 8U CubeSat technology demonstrator currently in Phase B designed to advance key capabilities required for future space-based optical interferometers. STARI will demonstrate end-to-end beam transfer by reflecting starlight from one spacecraft to another and injecting the received beam into a single-mode optical fiber when it launches in 2029. Formation flying and transferring starlight at very close proximities (25-200 m) presents GNC challenges such as collision safety, precision position control, and fast, precise beam control. The mission ConOps along with a sophisticated GNC system enables passively safe …

Software Defined Swarms, Nathan Benz, Scott Miller, Jeff Huang, Sonny Hwang, Todd Sarshad, Edmund De La Cruz, Thomas Magesarcher

Small Satellite Conference

The Starling Extended Mission has demonstrated the transformative potential of software-defined architectures in multi-spacecraft swarms. Building on the original Starling mission, which validated autonomous coordination and networking among small satellites, the extended phase focused on adaptability—updating onboard payload software and software-defined radios (SDRs) to enable entirely new experiments without hardware modifications. This capability signals a new approach: spacecraft swarms can evolve post-launch to meet emerging scientific and operational objectives. 

Central to this extension was the deployment of new software enabling two-way ranging and “reverse GPS” source identification using raw radio frequency (RF) signals. Traditionally, ranging and navigation rely on pre-integrated …

Sar Disksat Demonstration Mission For Constellation In Vleo, Hirobumi Saito, Mitsuteru Kaneoka

Small Satellite Conference

We proposed a novel concept of quasi-two-dimensional SAR (synthetic aperture radar) satellites, SAR DiskSats, in 2023 at this conference. This year, in 2026, the demonstration missions of SAR DiskSats are authorized by the Japanese government as a Space Strategy Fund’s Mission. This paper describes the concept and the mission scenario of the demonstration mission in 2028 and 2030. The SAR DiskSat features a deployable passive slot array antenna that can be compactly folded within the quasi-two-dimensional satellite body. This configuration allows for flexible solar cell sheets to be installed on the backside of the antenna, as the antennas do not …

Asynchronous One-Way Range (Aowr) – Alone Positioning And The Applications, Junichiro Kawagichi, Shingo Nishimoto

Small Satellite Conference

The paper first reports the recent operational results of the HOKUSHIN satellite. It explains how our extended code correlation method has performed and provides link threshold information, specifically the demonstrated C/N0 figures. The paper next focuses on cis-lunar space applications, beginning with direct AOWR-alone positioning directly from Earth using three or more small-aperture ground stations. The application employs a ‘Self-Positioning’ strategy. This system operates in cis-lunar space with 3-meter-class ground stations and CubeSats larger than 6U in size equipped with 200x300 mm patch-array antennas on. It enables universities and startups to conduct genuine lunar exploration. The team won the Strategic …