Research papers
5,883 papers · NASA NTRS, NTSB, FAA CAMI
NASA NTRS · 1,269 NTSB Safety Studies · 12 NTSB Aircraft Accident Reports · 17 Embry-Riddle Scholarly Commons · 1,993
5,883 matches
- arXiv 2022 ARXIV arXiv preprint
Analysis of the Effect of Time Delay for Unmanned Aerial Vehicles with Applications to Vision Based Navigation
In this paper, we analyze the effect of time delay dynamics on controller design for Unmanned Aerial Vehicles (UAVs) with vision based navigation.
- arXiv 2022 ARXIV arXiv preprint
When Robotics Meets Wireless Communications: An Introductory Tutorial
The importance of ground Mobile Robots (MRs) and Unmanned Aerial Vehicles (UAVs) within the research community, industry, and society is growing fast.
- NASA NTRS 2022 GSFC Conference Paper
Propulsive Trajectory Optimization to Minimize Surface Contamination
Descent retroburns using hydrazine thrusters will generate contaminants in their exhaust that can alter underlying samples, such as water-rich surfaces coinciding with possible life signatures or other science measuremen…
- NASA NTRS 2022 LaRC Accepted Manuscript (Version with final changes)
Framework for Estimating Performance and Associated Uncertainty for Modified Aircraft Configurations
Flight testing has been the historical standard for determining aircraft airworthiness. However, increases in the cost of flight testing and the accuracy of inexpensive CFD encourage the adoption of certification by anal…
- FAA-affiliated R&D (MITRE / Volpe / FAA Tech Center) 2022 MITRE MITRE risk analysis
Runway Incursion Prevention Systems — Surface Domain Risk Analysis
MITRE risk analysis of runway-incursion prevention systems (RIPS) — ASDE-X / ASSC + Airport Surface Detection Equipment performance characterization. Findings drove FAA Surface Safety Action Plan.
- arXiv 2022 ARXIV arXiv preprint
Trajectory Optimization of Cellular-Connected UAV for Information Collection and Transmission
In this paper, we consider a cellular-connected unmanned aerial vehicle (UAV) with an information collection and transmission mission for multiple ground targets.
- AOPA Air Safety Institute 2022 AOPA-ASI Safety advisor
Safety Advisor: Spatial Disorientation
Safety advisor on the perceptual illusions that cause spatial disorientation: the leans, graveyard spiral, somatogravic and somatogyral illusions, false horizon, and Coriolis.
- Semantic Scholar 2022 Article (Cancers)
The Effects of a Mediterranean Diet Intervention on Cancer-Related Fatigue for Patients Undergoing Chemotherapy: A Pilot Randomized Controlled Trial
Simple Summary Cancer-related fatigue affects the majority of people undergoing chemotherapy for cancer. The Mediterranean Diet provides healthy macro- and micronutrients that promote energy production and counter known …
- arXiv 2022 ARXIV arXiv preprint
Joint Optimization of Resource Allocation, Phase Shift and UAV Trajectory for Energy-Efficient RIS-Assisted UAV-Enabled MEC Systems
The unmanned aerial vehicle (UAV) enabled mobile edge computing (MEC) has been deemed a promising paradigm to provide ubiquitous communication and computing services for the Internet of Things (IoT).
- arXiv 2022 ARXIV arXiv preprint
A Comprehensive Survey on Aerial Mobile Edge Computing: Challenges, State-of-the-Art, and Future Directions
Driven by the visions of Internet of Things (IoT), there is an ever-increasing demand for computation resources of IoT users to support diverse applications.
- arXiv 2022 ARXIV arXiv preprint
Rapid wetting of shear-thinning fluids
Using experiments and numerical simulations, we investigate the spontaneous spreading of droplets of aqueous glycerol (Newtonian) and aqueous polymer (shear-thinning) solutions on smooth surfaces.
- arXiv 2022 ARXIV arXiv preprint
Nonlinear Control Allocation Using A Piecewise Multi-Linear Representation
Nonlinear control allocation is an important part of modern nonlinear dynamic inversion based flight control systems which require highly accurate model of aircraft aerodynamics.
- arXiv 2022 ARXIV arXiv preprint
Transonic buffet characteristics under conditions of free and forced transition
Transonic buffet is commonly associated with self-sustained flow unsteadiness involving shock-wave/boundary-layer interaction over aerofoils and wings.
- Semantic Scholar 2022 Article (Aerospace)
Natural Language Processing of Aviation Safety Reports to Identify Inefficient Operational Patterns
With the growth in commercial aviation traffic and the need for improved environmental performance, strategies to lower emissions that can be implemented in the near term are necessary.
- Semantic Scholar 2022 Article (Cognition, Technology & Work)
The case for change: aviation worker wellbeing during the COVID 19 pandemic, and the need for an integrated health and safety culture
The workplace is an important setting for health protection, health promotion and disease prevention. Currently, health and wellbeing approaches at an aviation organisational level are not addressing both human and safet…
- arXiv 2022 ARXIV arXiv preprint
Performance Analysis of Charging Infrastructure Sharing in UAV and EV-involved Networks
Electric vehicles (EVs) and unmanned aerial vehicles (UAVs) show great potential in modern transportation and communication networks, respectively.
- arXiv 2022 ARXIV arXiv preprint
A mushy source for the geysers of Enceladus
Enceladus is a primary target for astrobiology due to the $\rm H_2O$ plume ejecta measured by the Cassini spacecraft and the inferred subsurface ocean sustained by tidal heating.
- arXiv 2022 ARXIV arXiv preprint
Energy Efficiency Analysis of Charging Pads-powered UAV-enabled Wireless Networks
This paper analyzes the energy efficiency of a novel system model where unmanned aerial vehicles (UAVs) are used to provide coverage for user hotspots (user clusters) and are deployed on charging pads to enhance the flig…
- arXiv 2022 ARXIV arXiv preprint
Increased solidification delays fragmentation and suppresses rebound of impacting drops
The splat formed after drop impact on supercooled solid surfaces sticks to it. On the contrary, a sublimating supercooled surface such as dry ice inhibits pinning and therefore efficiently rebounds drops made of a variet…
- arXiv 2022 ARXIV arXiv preprint
Integrated Adaptive Control and Reference Governors for Constrained Systems with State-Dependent Uncertainties
This paper presents an adaptive reference governor (RG) framework for a linear system with matched nonlinear uncertainties that can depend on both time and states, subject to both state and input constraints.
- arXiv 2022 ARXIV arXiv preprint
Adaptation Strategy for a Distributed Autonomous UAV Formation in Case of Aircraft Loss
Controlling a distributed autonomous unmanned aerial vehicle (UAV) formation is usually considered in the context of recovering the connectivity graph should a single UAV agent be lost.
- arXiv 2022 ARXIV arXiv preprint
GAS: Generating Fast and Accurate Surrogate Models for Autonomous Vehicle Systems
Modern autonomous vehicle systems use complex perception and control components. These components can rapidly change during development of such systems, requiring constant re-testing.
- arXiv 2022 ARXIV arXiv preprint
Experimental investigations on the characteristics of snow accretion using the EMU-320 model train
This paper presents a snow accretion test conducted in a climate wind tunnel to investigate the icing process on a model train. The model used within this experiment was the cleaned-up and 2/3-scaled version of EMU-320, …
- NASA NTRS 2022 KSC Contractor or Grantee Report
Phase II and III Solid Waste Management Unit Assessment and Confirmatory Sampling Report for Per- and Polyfluorinated Alkyl Substances, Potential Release Location 237, Kennedy Space Center, Florida
Per- and polyfluoroalkyl substances (PFAS) Phase II and III Solid Waste Management Unit (SWMU) Assessment (SA) and Confirmatory Sampling (CS) were conducted at the John F.
- Semantic Scholar 2022 Article (International Journal of Environmental Research and Public Health)
Resource-Strengthening Training for Parents of Adolescents with Problematic Gaming (Res@t-P): A Clinical Pilot Study
Background: Problematic gaming (PG) has become an increasing mental health issue among adolescents during the preceding years. The role of parents and the family environment in the development of PG has been repeatedly e…
- FAA-affiliated R&D (MITRE / Volpe / FAA Tech Center) 2022 FAA-TC FAA Tech Center report (DOT/FAA/TC-22/08)
Lithium Battery Thermal Runaway in Aircraft Cargo Holds
Hughes Technical Center fire-research evaluation of lithium-ion battery thermal runaway in Class C cargo compartments. Drove revisions to FAR 25 cargo fire-suppression certification and the SAFO 18001 on lithium battery …
- arXiv 2022 ARXIV arXiv preprint
Networked Drones for Industrial Emergency Events
Uncontrolled emissions of gases from industrial accidents and disasters result in huge loss of life and property. Such extreme events require a quick and reliable survey of the site for effective rescue strategy planning…
- arXiv 2022 ARXIV arXiv preprint
Trajectory Planning of Cellular-Connected UAV for Communication-assisted Radar Sensing
Being a key technology for beyond fifth-generation wireless systems, joint communication and radar sensing (JCAS) utilizes the reflections of communication signals to detect foreign objects and deliver situational awaren…
- arXiv 2022 ARXIV arXiv preprint
Global Incremental Flight Control for Agile Maneuvering of a Tailsitter Flying Wing
This paper proposes a novel control law for accurate tracking of agile trajectories using a tailsitter flying wing unmanned aerial vehicle (UAV) that transitions between vertical take-off and landing (VTOL) and forward f…
- arXiv 2022 ARXIV arXiv preprint
How does gravity influence freezing dynamics of drops on a solid surface
Water droplet freezing is a common phenomenon in our daily life. In both natural scenarios and industrial production, different surface inclinations bring distinctive deformation and freezing dynamics to frozen droplets.…
- arXiv 2022 ARXIV arXiv preprint
Static Hovering Realization for Multirotor Aerial Vehicles with Tiltable Propellers
This paper presents a theoretical study on the ability of multi-rotor aerial vehicles (MRAVs) with tiltable propellers to achieve and sustain static hovering at different orientations.
- arXiv 2022 ARXIV arXiv preprint
Double-diffusive transport in multicomponent vertical convection
Motivated by the ablation of vertical ice faces in salt water, we use three-dimensional direct numerical simulations to investigate the heat and salt fluxes in two-scalar vertical convection.
- arXiv 2022 ARXIV arXiv preprint
Proactive Distributed Emergency Response with Heterogeneous Tasks Allocation
Traditionally, traffic incident management (TIM) programs coordinate the deployment of emergency resources to immediate incident requests without accommodating the interdependencies on incident evolutions in the environm…
- arXiv 2022 ARXIV arXiv preprint
Competition between Rayleigh--Bénard and horizontal convection
We investigate the dynamics of a fluid layer subject to an imposed bottom heat flux and a top monotonically-increasing temperature profile driving horizontal convection.
- arXiv 2022 ARXIV arXiv preprint
Design of Dynamics Invariant LSTM for Touch Based Human-UAV Interaction Detection
The field of Unmanned Aerial Vehicles (UAVs) has reached a high level of maturity in the last few years. Hence, bringing such platforms from closed labs, to day-to-day interactions with humans is important for commercial…
- arXiv 2022 ARXIV arXiv preprint
Joint Ranging and Phase Offset Estimation for Multiple Drones using ADS-B Signatures
A new method for joint ranging and Phase Offset (PO) estimation of multiple drones/aircrafts is proposed in this paper. The proposed method employs the superimposed uncoordinated Automatic Dependent Surveillance Broadcas…
- NASA NTRS 2022 LaRC Poster
Transient Aircraft Soot Emissions Indicate That Steady-State Measurements Likely Underestimate Real-World, Take-Off Emissions: Time-Varying Aircraft Take-Off Emissions Indices Measured at Los Angeles International Airport
Aircraft engine emissions are unique among mobile pollution sources in that their impacts affect the local air quality near airports as well as upper tropospheric composition and climate over regional-to-hemispheric scal…
- arXiv 2022 ARXIV arXiv preprint
State Prediction of Human-in-the-Loop Multi-rotor System with Stochastic Human Behavior Model
Reachability analysis is a widely used method to analyze the safety of a Human-in-the-Loop Cyber Physical System (HiLCPS). This strategy allows the HiLCPS to respond against an imminent threat in advance by predicting re…
- arXiv 2022 ARXIV arXiv preprint
ISAC from the Sky: UAV Trajectory Design for Joint Communication and Target Localization
Unmanned aerial vehicles (UAVs) as aerial base stations (BSs) are able to provide not only the communication service to ground users, but also the sensing functionality to localize targets of interests.
- arXiv 2022 ARXIV arXiv preprint
Nonlinear simulation of wave group attenuation due to scattering in broken floe fields
Direct phase-resolved simulations are performed to investigate the propagation and scattering of nonlinear ocean waves in fragmented sea ice.
- NASA NTRS 2022 ARC Conference Paper
Urban Air Mobility Airspace Dynamic Density
Airspace safety must be assured for Urban Air Mobility (UAM) to become reality. Emerging operations need to safely integrate with existing and future air traffic. UAM is anticipated to evolve in stages.
- Semantic Scholar 2022 Article (PHM Society European Conference)
Failures Mapping for Aircraft Electrical Actuation System Health Management
This paper presents the different types of failure that may occur in flight control electrical actuation systems. Within an aircraft, actuation systems are essential to deliver physical actions.
- NASA NTRS 2022 ARC Conference Paper
Preliminary Characterization of Unmanned Air Cargo Routes Using Current Cargo Operations Survey
The introduction of regional cargo unmanned aircraft systems into the National Airspace System is anticipated within the coming years.
- NASA NTRS 2022 ARC Presentation
Preliminary Characterization of Unmanned Air Cargo Routes Using Current Cargo Operations Survey
The introduction of regional cargo unmanned aircraft systems into the National Airspace System is anticipated within the coming years.
- NASA NTRS 2022 LaRC Presentation
Particle and Trace Gas Emissions Indices Measured During the 2021 Boeing ecoDemonstrator Emissions Ground Test
We present particle and trace gas emissions indices sampled on the ground at 30 meters behind the CFM LEAP-1B engines of the 2021 Boeing ecoDemonstrator, an Alaska Airlines 737-9 aircraft.
- arXiv 2022 ARXIV arXiv preprint
Safe Schedule Verification for Urban Air Mobility Networks with Node Closures
In Urban Air Mobility (UAM) networks, takeoff and landing sites, called vertiports, are likely to experience intermittent closures due to, e.g., adverse weather.
- arXiv 2022 ARXIV arXiv preprint
Event-triggered and distributed model predictive control for guaranteed collision avoidance in UAV swarms
Distributed model predictive control (DMPC) is often used to tackle path planning for unmanned aerial vehicle (UAV) swarms. However, it requires considerable computations on-board the UAV, leading to increased weight and…
- Semantic Scholar 2022 Article (Diagnostyka)
Health management using fault detection and fault tolerant control of multicellular converter applied in more electric aircraft system
The increased cost of fuel and maintenance in aircraft system lead to the concept of more electric aircraft, moreover this concept increase the use of power electronic converters in aircraft power system.
- arXiv 2022 ARXIV arXiv preprint
Drone Delivery Systems and Energy Management: A Review and Future Trends
Advanced technological breakthroughs and exceptional levels of innovation are enhancing the capabilities and potential of autonomous unmanned aerial vehicles (UAVs or drones), and in so doing attracting the interest of a…
- arXiv 2022 ARXIV arXiv preprint
Multi-UAV Planning for Cooperative Wildfire Coverage and Tracking with Quality-of-Service Guarantees
In recent years, teams of robot and Unmanned Aerial Vehicles (UAVs) have been commissioned by researchers to enable accurate, online wildfire coverage and tracking.