Digital Commons Network^™

From Estimation To Certainty: Enhancing Smallsat Constellation Replenishment Planning With Physics-Based Solar Forecasting, Scott W. Mcintosh, Katherine Monson, Carolyn Belle, Chris Habib, Brianna Aubin

Small Satellite Conference

Poster Presented at the 2026 Small Satellite Conference

First Generation Of Project A.S.P.I.R.E. – A 1u Cubesat Mission For Technology Demonstration And Student Involvement In New Zealand, Shuanghui Zhao, Shunxing Shi, Kristen Lian, Rose Peens-Hough, Arami Peens-Hough, Changrui Wang, Joowon Hwang, Jerry Sun, Edward Sun

Small Satellite Conference

MOTIVATION

A feasibility study conducted at an Auckland secondary school in December 2024 found strong interest in satellite-related learning. Following an outreach presentation, 63 students (Majority aged 15 - 18) completed a questionnaire, with an average interest rating of 4.86/5. The most popular subjects were Orbital Physics, Mathematics, Mechanical Engineering, and Electrical Engineering (fig. 1).

Mission Orientated Flight Software Development: Cubestep, Tirth Thakkar, Howard Lee, Viren Kumar, Maranda Laws, Shridhi Seth, Marco Maggia, Navid Nakhjiri

Small Satellite Conference

Small satellite teams often develop flight software and mission operations separately, leading to software behaviors that drift out of sync with ground procedures. To fix this, we present a co-design approach that directly links mission goals and operational procedures to the onboard flight software architecture. Demonstrated on the CubeSTEP-Cerberus mission using NASA’s F′ framework and FreeRTOS, our system maps mission intent into five constrained software states (Initialization, Safe, Idle, Experiment, and Transmit) guarded by automated health checks. This co-design strategy ensures the spacecraft acts autonomously to preserve its goals while strictly maintaining operator control over critical decisions.

Modular, Scalable Electroadhesive Technology For Rapid Response Satellite Servicing And De-Orbit, Kalia Crowder, Victor Agüero

Small Satellite Conference

Building on previous surface attachment testing and a study of the Cambrian Works Space Payload for Inertial Despin Efficient Effects (SPIDEE) architecture carried out under AFRL support, this work presents a modular, scalable electroadhesive attachment architecture enabling rapid-response satellite servicing and de-orbit missions. Prior test and analysis campaigns provided quantified performance validation across the small satellite size range, from 3U CubeSats to ESPA-class platforms, demonstrating the scalability required for diverse time-critical servicing scenarios.

Testing validated performance under representative on-orbit conditions and dynamic scenarios. Attachment force measurements across spacecraft materials representing aluminum bus structures, composite panels, multi-layer insulation, and solar cells …

A Survey Of The State Of The Art In Multi-Spacecraft, Multi-Agent Swarms, Caleb Adams, Trey Smith, Aaron Woodard, Ellemieke Van Kints, Brian Kempa, Jeremy Frank

Small Satellite Conference

The Next-Generation Multi-Agent Swarm (NGS) Study conducted by NASA’s Ames Research Center for NASA’s Space Technology Mission Directorate (STMD) has developed a comprehensive understanding of emerging multi-agent swarm capabilities for applications in cislunar and lunar space. This paper addresses specific shortfalls identified by STMD, including intelligent multi-agent constellations, autonomy, edge computation, position, navigation, and timing for small spacecraft, and small spacecraft propulsion. This paper surveys the current state of the art in technology areas relevant for the next-generation multi-agent swarm design. Our primary focus is on surveying relevant deployed space systems, supplemented with selective analysis of relevant proposed missions and …

Design, Qualification, And Implementation Of Modular Spacecraft Radio Testing Enclosures For Small Satellite Missions, Dexter Stewart

Small Satellite Conference

As small satellite missions evolve, spacecraft platforms increasingly integrate radio-frequency (RF) antennas to support telemetry, command, and inter-satellite communication links that must be verified following full system integration. Recent changes in launch site safety policy, most notably SpaceX’s ban on over-the-air (OTA) testing, have created a critical gap in the ability to qualify spacecraft communication systems during testing at the launch site. This paper presents the design, qualification, and implementation of modular RF containment enclosures, known as ’antenna hats’, developed to enable safe, non-OTA testing of fully integrated small satellites. The antenna hats are self-contained enclosures that interface directly with …

Distribution Of Urinary Calculi And Its Association With Clinical And Laboratory Findings In Dogs And Cats With Stone Analysis At Chulalongkorn Animal Teaching Hospital, Thailand (2020-2024), Tanattha Ladabornvidhaya, Natkrita Baikloy, Theaparak Thipjaroen, Parapond Kongrakchang, Warisara Kaechaiya, Sumonwan Chamsuwan, Monkon Trisiriroj, Chollada Buranakarl

The Thai Journal of Veterinary Medicine

Urinary calculi are commonly encountered in veterinary practice; however, information regarding their distribution of stone that underwent analysis and associated clinical findings remains limited. This study investigated the distribution of urolithiasis and the associations between stone types and clinical and laboratory findings in dogs and cats presented to the Chulalongkorn Small Animal Teaching Hospital between 2020 and 2024. The three most common stone types in both species were calcium oxalate (CaOx), struvite, and urate, with relatively stable trends over the 5-year period. Small-breed dogs had a higher risk of developing CaOx urolithiasis than medium-breed dogs (OR = 10.4, 95% CI …

Development, Analysis, And Qualification Of A Hinge And Hdrm Assembly For Small Satellite Deployable Probes, Josh Taylor

Small Satellite Conference

Small satellites commonly utilize deployable systems to expand their space environment sensing and power generation capabilities. Sensing the space environment is required for certain missions, as it provides information about space weather events such as scintillation and solar flares. To accurately measure the space environment, the probes must be placed away from the spacecraft while in orbit. This paper presents the development, analysis, and qualification of a hinge and Hold-Down and Release Mechanism (HDRM) assembly for deployable space weather probes. These two mechanisms were developed as an assembly to be lightweight, compact, and reliable for deploying space weather probes. The …

Beyond Parametric Adaptation: Periodic Redesign For Reaction Wheel Degradation In Precision Pointing Cubesats, Bruno Ingrao

Small Satellite Conference

CubeSat missions increasingly require sustained science-grade precision pointing over long durations. Although sub-arcsecond line-of-sight (LoS) stability is achievable, maintaining this performance is challenged by nonlinear, speed-dependent, and time-varying reaction wheel behavior. As actuator degradation progresses from beginning-of-life (BOL) to end-of-life (EOL), model-plant mismatch can lead to significant pointing degradation and potential loss of mission capability. This work investigates the limitations of fixed-gain and parametric adaptive control under degraded actuator conditions and proposes a periodic identification and controller redesign framework. The approach detects persistent model mismatch using innovation-based consistency and performance metrics, triggers on-orbit identification, and updates the actuator model using …

Radma: Resource-Aware, Dynamic Deployment Of Ml Architectures On An Edge Tpu In Space, Robert Rathert

Small Satellite Conference

As the number of Space Vehicles (SVs) orbiting Earth grows, downlink bitrate bottlenecks necessitate a shift to Orbital Edge Computing (OEC). Size, Weight, and Power, and Cost (SWaP-C) limit onboard Machine Learning (ML) autonomy, and State-of-the-Art (SotA) systems deploy static ML models that do not adapt to dynamic orbit conditions. This work proposes and evaluates RADMA, a resource-aware framework that selects Neural Network (NN) models in response to changing latency and energy constraints. We quantify the performance of RADMA on an open-hardware picosatellite payload that hosts a Google Coral Edge Tensor Processing Unit (TPU). Orbit simulation and modeling predict processing …

Validated Lie Group Variational Integrator-Based Simulator For Passive Magnetic Attitude Control Of The Gasrats Cubesat, Truman T. Abbe

Small Satellite Conference

Passive magnetic attitude control (PMAC) systems are selected for integration in CubeSat designs on account of their simplicity and lack of power consumption. These systems function by simultaneously dissipating a satellite’s rotational kinetic energy as heat and orienting it according to the Earth’s magnetic field. This process is critical for establishing steady-state attitude, a stable rotational state required for conducting mission operations and enabling downlink to ground stations. Comprehensive attitude simulations are necessary for confirming the reliability of a PMAC system to provide timely attitude convergence for a wide range of deployment velocities and orientations. An attitude damping phase precedes …

Awh‑Ω4.0 — Adaptive Hyper‑Arid Atmospheric Water Engine Open‑Hardware Research Invention For Hyper‑Arid Atmospheric Water Harvesting With Modular Mof Cartridges, Solar Regeneration, Closed Vapor Condensation, And Radiative Cooling License: Cern‑Ohl‑P V2.0 (Open Hardware, No Patents), Michael Victor Caldwell Mr.

Defensive Publications Series

AWH‑Ω4.0 is a builder‑ready, research‑mode atmospheric water engine designed for hyper‑arid climates (3–15% RH). It uses metal–organic framework (MOF) sorbents (MOF‑303, MOF‑801, and future composites) to adsorb water vapor from extremely dry air, then regenerates the sorbent using solar thermal energy and a thermal battery, routing desorbed vapor through a closed condenser loop to produce liquid water.

The system is explicitly engineered as an open‑hardware research platform, not a commercial product. It defines:

• Full geometry and dimensions for sorbent cartridges, intake, condenser, and thermal subsystems.

• Exact MOF mass per cartridge and structured contactors to minimize pressure drop.

• Nighttime adsorption / …

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The Composite Timepiece That Concurrently Contain A Classic Watch And A Distributed Smart Watch Display Where The Distributed Smart Watch Display Will Utilize 16 Distributed Projection Configurations., Punarjeewa Abeysekera

Defensive Publications Series

This paper describes a composite timepiece that concurrently contain a classic watch and a distributed smart watch display where the distributed smart watch display will utilize 16 distributed projection configurations. The entire composite timepiece will consist of a traditional watch and a smart watch with a distributed display. The containing traditional watch structure and the smart watch including the distributed smart watch display will be housed within a physical structure. And the physical structure will house all the entities that will be required to make the containing traditional watch function and will house all the entities that will be required …

Solid-State Forms And Compositions Of Bexicaserin, Prashanth Venukathala, Venukathala Prashanth

Defensive Publications Series

The present invention relates to the field of pharmaceutical sciences and medicinal chemistry. More particularly, the invention relates to novel crystalline forms, amorphous forms, co-crystals, solid dispersions, pharmaceutical compositions, processes for preparing the same, and methods of use thereof comprising Bexicaserin or a pharmaceutically acceptable salt thereof.

Autonomous In-Loop Sealing Of Microdefects In Cryogenic Systems Of Particle Accelerators, Fusion Reactors And Space Technology Using Circulating Nanocapsulated Agents, Volodymyr Kotegov

Defensive Publications Series

Operation of large-scale cryogenic installations—particle accelerators, fusion reactors, space propulsion stages and quantum systems—demands continuous maintenance of leak-tightness in coolant and liquefied-gas circulation loops. Conventional methods for locating and repairing microleaks through intergranular pores of structural materials and microcracks in welded joints require complete shutdown of equipment, prolonged thermal recovery of isolated sectors and external mechanical intervention.

This publication presents a method of autonomous in-loop sealing in which the working cryogenic fluid itself serves as the carrier medium for functional nanocapsules. The method relies on thermodynamic, barometric, mechanical and electro-inductive triggers. When the nanostructured suspension passes through a microdefect into …

Method And System For Dynamic Trust Orchestration In Payment Networks, Pranjal Gautam, Sakshi Goyal, Divya Jain

Defensive Publications Series

A method (500) for dynamic trust orchestration in payment networks is provided. The method (500) includes receiving (505) data pertaining to a payment event associated with a payment transaction occurring within a payment network, identifying (510) a plurality of entities associated with the payment event from the received data. The method (500) further includes configuring (515) a relationship graph at a graph database with nodes representing the plurality of entities and edges representing relationships among the plurality of entities. The method (500) further includes extracting (520), transaction features, historical features, lifecycle features, and graph-context features from the relationship graph. The …

Dynamic Adaptation Of In-Memory Data Structures For Session-Specific Workloads, Abirami Sukumaran

Defensive Publications Series

Systems and methods are described for a polymorphic in-memory data store that can dynamically adapt its physical structure on a per-session basis. Some applications may experience performance bottlenecks from rigid, static in-memory data structures that may not be well-suited for certain dynamic workloads. The described technology can analyze real-time indicators, such as incoming data patterns and executed query types, to help determine a suitable memory layout. An adaptive engine can then transition the physical representation of the data between different formats, such as key-value, columnar, document, or vector-indexed structures. This approach may allow the in-memory data representation to align with …

Mitigating High Central Processing Unit (Cpu)-Induced Link Aggregation Control Protocol (Lacp) Flapping In Large-Scale Bundles, Anthoni Rajanikanth Jasti

Defensive Publications Series

Large-scale data center and enterprise networks frequently employ Link Aggregation Control Protocol (LACP) to aggregate multiple physical interfaces for redundancy and bandwidth. However, high central processing unit (CPU) utilization can disrupt LACP operations, causing interface flapping and network instability, especially when fast LACP timers and many virtual local area networks (VLANs) are configured. A mitigation technique is proposed herein that uses the LACP Out-of-Sync bit to coordinate interface unbundling during high-CPU events, thereby reducing repeated timer-driven flapping and supporting orderly recovery.

Time-Division Multiplexing And Adaptive Connection Adjustment In Pipeline Arrays, Jinhui Wu

Defensive Publications Series

This paper describes a time-division multiplexing implementation of Pipeline Arrays. Through TDM and
BRAM-based state management, a limited number of physical Pipelines support a larger number of
Pipeline instances. Each Pipeline instance maintains independent energy state management with automatic
deactivation upon energy depletion. This paper also describes state replication and migration methods,
adaptive adjustment of connection relationships, sparse connection storage and query methods, energy
state propagation and influence calculation, as well as statistical metric collection and event detection. The
above solutions are described in a parametric manner, and relevant parameters can be adjusted according
to actual requirements.

Numerical Validation Of An Aperiodic Bi-Ionic Magnetic Nozzle Architecture For High-Field (48.38 T) Continuous Electromagnetic Acceleration., Daniel Schramm

Defensive Publications Series

This disclosure details the multi-physics finite element verification and structural co-optimization of a continuous-operation, meter-scale electromagnetic propulsion architecture. The design utilizes a bi-ionic, aperiodic golden-ratio magnetic nozzle configuration. Computational evaluation confirms structural, thermal, and electrical viability under a continuous 48.38 Tesla field at a 1 Megawatt load.

Key closed-loop validation metrics include:

• Structural Containment: Implementation of a 32% CuNb/high-strength metal interleaving fraction successfully attenuates peak local magnetic stresses (1.630 GPa), yielding a secure 1.40x safety margin against an 80.0 MPa epoxy delamination threshold.

• Electrical Viability: The co-optimized winding pack sustains an engineering current density of 227.5 A/mm², maintaining the critical …

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Ccwe‑Ω4.0 — Unified Atmospheric‑Hydrodynamic‑Plasma Clean‑Water Engine A Builder‑Ready, Multi‑Physics Pfas/Microplastic Mineralization Reactor For Global Deployment, Michael Victor Caldwell Mr.

Defensive Publications Series

The CCWE‑Ω4.0 is a fully integrated, open‑hardware clean‑water engine designed to permanently destroy PFAS, microplastics, pathogens, hydrocarbons, and recalcitrant contaminants using a unified multi‑physics architecture. Unlike conventional filtration systems that trap contaminants on media, CCWE‑Ω4.0 performs true molecular mineralization, eliminating toxic waste streams entirely.

CCWE‑Ω4.0 integrates:

• Atmospheric water harvesting (GCI #272 Hyper‑Arid MOF Engine)

• Hydrodynamic cavitation (VMR Titan‑2.0)

• Acoustic vortex concentration (Vortex Sentinel AV‑1)

• Cold‑plasma PFAS destruction (Sentinel‑AV‑1‑2.0)

• Gyroid thermal buffering (Forgecell Prime‑2.0)

• Gyroid cooling & resilience (UGCRM‑1.0)

• Multi‑modal resonance mapping (MMRA‑2.0)

• Cognitive multi‑physics stabilization (CMRS‑1)

• Thermoacoustic gradient amplification (CRFG‑1R‑2.0)

• Atmospheric resonance alignment (ARPN‑2.0)

• Hydrology mapping (GRHN‑2.0)

• Off‑grid energy harvesting …

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Multi-Probe Dehp Validation Protocols For Jwst, Euclid, And Roman Space Telescope Telemetry Data, Christopher L. Eckes

Defensive Publications Series

Modern cosmological observations are encountering acute foundational tensions within the standard ΛCDM framework. These include the 5σ Hubble Tension, anomalously mature galaxy populations at high redshifts (z > 10) revealed by the James Webb Space Telescope (JWST), and large-scale cosmic anisotropy dipoles detected in radio and infrared surveys. This white paper presents a formal empirical framework to evaluate the Dimensionally Extended Holographic Projection (DEHP) model against these anomalies. By treating space-time as an emergent bulk generated by a two-dimensional boundary information layer, DEHP treats cosmic expansion as a manifestation of viscoelastic substrate mechanics rather than an intrinsic vacuum metric expansion. We …

Token Prediction Using Grammar Estimation, Shivam Mohan

Defensive Publications Series

A system for token prediction using grammar estimation includes a sequence intake component configured to receive a token sequence and organize the token sequence into ordered progression units retaining positional and temporal structure. A context conditioning component associates the token sequence with contextual dimensions comprising user-specific interaction patterns, session-local behavior, and environmental state. A grammar estimation component maintains a state-transition graph comprising states representing progression conditions inferred from observed token behavior and transitions accumulating evidence of how token sequences evolve. A state merge component computes a merge score for state pairs based on token co-occurrence frequency, similarity of transition neighborhoods, …

Adaptive Media Interruption Placement Using Causal Analysis Of Audience Engagement, Joanna Piega, David Lepkowski, Szymon Socha

Defensive Publications Series

A challenge in the field of digital media distribution relates to static interruption placements, such as advertisements, which may be determined without considering evolving audience engagement data. This approach can result in interruptions during periods of low viewer interest, potentially increasing session abandonment. Systems and methods are described that can address this by utilizing a quasi-experimental statistical framework to analyze audience engagement data. The framework may compare viewer abandonment rates between sessions where an interruption was presented and sessions where an interruption was not presented for the same temporal location. This comparison can yield a causal abandonment penalty metric for …

System For Automated Cross-Feed Auditing Of E-Commerce Product Data, N/A

Defensive Publications Series

In multi-channel e-commerce, merchants may utilize separate product data feeds, for instance, for online and local inventory, which can lead to data conflicts and inconsistencies that may not be detected by single-feed validation checks. A system for automated, cross-feed auditing can address these potential issues. The system can integrate and cross-reference data from multiple sources, including online, local, and historical data repositories, to create a more comprehensive view of product data. It may use analytical modules to identify price or availability discrepancies between feeds, diagnose reasons for suppressed promotional badging based on time-series rules, and suggest missing product attributes based …

Siddha Formulations: A Traditional Reservoir Of Valuable Medicines For The Contemporary World, Agnes Preethy

International Journal of Traditional Knowledge

Traditional Medicine had been practised for many centuries in different parts of the world. However, the deep insights drawn from the traditional knowledge have remained highly localized as it had been privy only to the generations of traditional medicine practitioners. This, combined with lack of scientific evidence of their therapeutic action, had limited access, acceptance and awareness of these preparations to the larger segment of the community. The emergence of new lifestyle disorders and drug-resistant diseases in recent years has fuelled the search for alternate treatment strategies and has revived interest in traditional medicines. Concerted efforts to decipher the molecular …

Ayurvedic Herbs In The Management Of Benign Prostatic Hyperplasia: A Comprehensive Narrative Review, Latha Damle, Chandrasekhar C

International Journal of Traditional Knowledge

Benign Prostatic Hyperplasia (BPH) is a common, non-cancerous enlargement of the prostate gland, primarily affecting older men. It frequently leads to lower urinary tract symptoms (LUTS) such as increased urinary frequency, urgency, nocturia, and weak urine flow, which can significantly impair quality of life. Standard treatments for BPH include alpha-blockers, 5-alpha reductase inhibitors, and surgical interventions. However, limitations in efficacy and potential adverse effects have driven interest in complementary and traditional therapies, including Ayurveda. In Ayurvedic medicine, BPH is described as Mutraghata and Vatashthila, conditions attributed to an imbalance of Vata and Kapha doshas that disrupt normal prostate and …

Addressing Sustainability Challenges: Perspectives From Bhagavad Gītā, B Mahadevan, Dhrithi Mahadevan

International Journal of Traditional Knowledge

The industrialization-driven growth has ushered in economic progress over the past few centuries. However, it has also raised serious concerns about the sustainability of life on this planet. Despite considerable attempts to address sustainability issues using newer frameworks and efforts by corporates as well as governmental, and non-governmental institutions, we have remained ineffective in implementing sustainable solutions. The “last mile” to successfully implementing sustainable solutions is the individual. This calls for addressing individual values and aligning them to sustainability. This paper presents a fresh perspective on the problem by drawing some insights from the Bhagavad Gītā. We introduce the basic …

A Treasure House Called Traditional Knowledge, Sudha Seshayyan

International Journal of Traditional Knowledge

Centuries of observation, experimentation, and cultural continuity have formed the basis of traditional knowledge, which is a huge and complex repository of scientific information. Engineering, hydrology, fluid dynamics, medicine and cosmology are just a few of the many domains in which ancient Indian wisdom demonstrates an astonishing depth of factual understanding that is ingrained in daily activities, architectural principles, and literature. From Avvaiyar’s verses of wisdom to the magnificent temples whose architecture continues to amaze humanity and the structural brilliance of the Kallanai dam constructed in the second century CE and still serving the local population, all serve as testimony …

Gaining From Captured Indian Traditional Knowledge Systems: Paths Taken And Way Forward, Ramasami T

International Journal of Traditional Knowledge

India’s scientific heritage is deeply reflected in Ayurveda, a tradition of integrative medicine documented for over two millennia. P.C. Ray, the father of modern chemistry in India, highlighted the depth of ancient chemical knowledge and early use of mercury compounds, while M.S. Valiathan later revived and analyzed the classical texts of Charaka, Sushruta, and Vagbhata to bridge Ayurveda with modern science. Building on this foundation, the Government of India launched initiatives linking Ayurveda with genomics, personalized medicine, and rasayana therapies, yielding promising insights such as the genetic basis of prakriti classifications and protective effects of Amalaki Rasayana. Efforts like the …