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Articles 5071 - 5100 of 1815305
Full-Text Articles in Entire DC Network
Journal Ida 2021 100 4
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Journal Ida 2021 100 3
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Journal Ida 2021 100 2
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Journal Ida 2020 99 4
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Journal Ida 2020 99 3
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Journal Ida 2020 99 2
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Journal Ida 2020 99 1
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Journal Ida 2019 98 4
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Journal Ida 2019 98 3
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Journal Ida 2019 98 2
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Journal Ida 2019 98 1
Journal IDA
The Journal IDA is a peer-reviewed, scientific periodical owned and published by the Indiana Dental Association, a constituent of the American Dental Association.
Journal IDA concentrates on the clinical aspects of dentistry, including case studies and research; practice management and business aspects of dentistry, from start up to transition; and also includes special and regular feature articles.
Scaling Distributed Spacecraft Autonomy Operations With Simple Temporal Networks: Introducing Splinter, Michael Iatauro, Caleb Adams, Caroline Lassiter
Scaling Distributed Spacecraft Autonomy Operations With Simple Temporal Networks: Introducing Splinter, Michael Iatauro, Caleb Adams, Caroline Lassiter
Small Satellite Conference
The Absolute Time Sequence (ATS) is a well-established mechanism for high-level spacecraft control, executing commands at specific times. One weakness of ATSs is that the cost of making a change to the command sequence grows with the length of the sequence, and the cost paid is many repetitive-but-detailed changes to the timing of commands, which is error-prone.
This weakness becomes a liability when scaling up to spacecraft swarms or long ATS durations because any perturbation to the command sequence or schedule incurs significant cost. Fitting that cost within a small team or short sequence development timeline becomes a central challenge …
In-Orbit Demonstration Of The Vyom-2u: A Green Monopropellant-Based Propulsion System Onboard Isro's Pslv C60 Poem-4, Ashtesh Kumar, Tushar Jadav, Prashant Singh, Rajat Kumar, Sajo George, Sivakami S., Rohit Shanbhag, Neel Gharat, Shubham Singh, Henry Sam, Suman Vadla
In-Orbit Demonstration Of The Vyom-2u: A Green Monopropellant-Based Propulsion System Onboard Isro's Pslv C60 Poem-4, Ashtesh Kumar, Tushar Jadav, Prashant Singh, Rajat Kumar, Sajo George, Sivakami S., Rohit Shanbhag, Neel Gharat, Shubham Singh, Henry Sam, Suman Vadla
Small Satellite Conference
Vyom 2U is a compact 2U green monopropellant propulsion system designed to deliver a total impulse of 1700 Ns. At Beginning-of-Life (BOL) conditions, corresponding to a tank pressure of 24 bar, the thruster can deliver up to 1.1 N with a specific impulse of approximately 250 s, while requiring a peak electrical power of 15 W. At an operating pressure of 14 bar, the propulsion system delivers a thrust of approximately 0.67 N with a specific impulse of about 238 s. This operating point was deliberately selected for in-orbit operations to maintain sub-newton thrust levels compatible with the attitude control …
Payload Selection To Correlate Shielding Performance With Molecular Structure And Elemental Composition For Rosisat: The Radiation Orbital Shielding Investigation Satellite, Chase Patterson, Jacob L. Blanton, Kylie Nager
Payload Selection To Correlate Shielding Performance With Molecular Structure And Elemental Composition For Rosisat: The Radiation Orbital Shielding Investigation Satellite, Chase Patterson, Jacob L. Blanton, Kylie Nager
Beyond: Undergraduate Research Journal
Exposure to space weather in the Low Earth Orbit (LEO) environment poses significant challenges to both the integrity and longevity of orbital hardware, as well as the health of astronauts, driving the necessity for improved means of radiation shielding for future missions. With a 1U CubeSat formfactor, ROSISat is a planned LEO mission that aims to characterize the radiation shielding capabilities of seven candidate materials: ultra-high molecular weight polyethylene, boron nitride, carbon nanotubes, boron nitride nanotubes with polyethylene fibers, carbon fiber reinforced composite, and aerographene, as well as two control materials: aluminum 6061 and ep33. By comparing the shielding performance …
Initial Flight Test Data Of The Duplex 6u Satellite And The Fppt And Mvp Thrusters, Conor Blount, Magdalena Parta, Chris Young, Andrew Woodruff, Brendan Schulz, Darren King, Curtis Woodruff, Iain Murphy, David Carroll
Initial Flight Test Data Of The Duplex 6u Satellite And The Fppt And Mvp Thrusters, Conor Blount, Magdalena Parta, Chris Young, Andrew Woodruff, Brendan Schulz, Darren King, Curtis Woodruff, Iain Murphy, David Carroll
Small Satellite Conference
NASA’s Space Technology Mission Directorate (STMD) funded CU Aerospace (CUA) to develop and fabricate the Dual Propulsion Experiment (DUPLEX) 6U CubeSat to perform an on-orbit mission demonstration of two new polymer fiber electric propulsion technologies developed by CUA using NASA Small Business Innovative Research (SBIR) funding. Both new propulsion technologies have multiple advantages: they utilize no fluid propellant, no pressure vessel, no valves to clog or leak, and no toxic materials. The 1.7U fiber-fed pulsed plasma thruster (FPPT) uses spooled Teflon filament as its propellant, has extremely high total impulse ( > 29,000 N-s) with high specific impulse ( > 3,500 s), …
Self Efficacy And Instructional Support Predict Cyber Deception Acceptance In Ics And Ot Cybersecurity, Daniel Ward
Self Efficacy And Instructional Support Predict Cyber Deception Acceptance In Ics And Ot Cybersecurity, Daniel Ward
Journal of Cybersecurity Education, Research and Practice
Cyber deception can produce high-confidence evidence of unauthorized activity in industrial control systems (ICS) and operational technology (OT), but practitioners must consider the technology useful, safe, understandable, and supported before they will use it. This study reports a secondary quantitative analysis of a deidentified survey of United States-based ICS and OT professionals to determine whether psychological and instructional factors predict adoption readiness and effective utilization beyond education, experience, and sector. Hierarchical ordinary least squares regression with HC3 robust standard errors was conducted on 262 complete cases. The demographics-only model was not significant and explained 2.8 percent of outcome variance. Adding …
The Gleneagles Communique Climate Change, Energy And Sustainable Development
The Gleneagles Communique Climate Change, Energy And Sustainable Development
Law and Business Review of the Americas
No abstract provided.
Opengrcrmf: A Vendor-Neutral Framework For Teaching And Modeling Rmf Automation, Continuous Authorization, And Zero Trust Governance, Anand Janjal
Journal of Cybersecurity Education, Research and Practice
Abstract—Federal and regulated organizations continue to rely on document-centric Authorization to Operate (ATO) processes even as the NIST Risk Management Framework (RMF), continuous monitoring guidance, Zero Trust Architecture (ZTA), and continuous authorization initiatives require more continuous, evidence-driven risk management [1]-[3], [13], [15]. Manual System Security Plan (SSP) updates, spreadsheet-based Plan of Action and Milestones (POA&M) tracking, and disconnected assessment evidence create governance latency: the delay between operational security events and authorization-ready governance response. This paper presents OpenGRCRMF, a proposed open, vendor-neutral reference framework that models RMF lifecycle activities as workflow states, treats authorization artifacts as structured governance objects, and …
Enabling Earth Independent Navigation, Guidance And Control With The Autongc Flight Software Framework, Michael Romeo, Sun Hur-Diaz, Behnam Azimi, Sean Semper, Robert Pritchett, James Marshall, Liam Greenlee, Joseph Patton, Steven Slegel, Carl De Vries, Benjamin Leser, Andrew Liounis
Enabling Earth Independent Navigation, Guidance And Control With The Autongc Flight Software Framework, Michael Romeo, Sun Hur-Diaz, Behnam Azimi, Sean Semper, Robert Pritchett, James Marshall, Liam Greenlee, Joseph Patton, Steven Slegel, Carl De Vries, Benjamin Leser, Andrew Liounis
Small Satellite Conference
autoNGC is a framework for enabling onboard autonomous Navigation, Guidance and Control. Encompassing flight software, ground system software, reference hardware platforms, and simulation/analysis tools, autoNGC is designed to be an end-to-end solution to enabling onboard navigation, guidance and control with minimal ground operator supervision.
Implemented as a suite of apps for NASA’s core Flight System (cFS), autoNGC is designed with a modular architecture, allowing it to be customized to meet the needs of nearly any mission. This modular architecture enables a high-degree of reusability, allowing autoNGC to be rapidly implemented on new missions.
autoNGC is built on Goddard-developed software products, …
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
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
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
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
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
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
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
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
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
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
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
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 …