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Academia · 5,559 papers
Aviation research, sourced & cited.
Curated index of aviation-relevant research from NASA NTRS, NTSB safety studies, FAA CAMI, and academic sources. Every record links back to its original — we don't host PDFs, we describe each paper and credit the authors. Built for cross-link with the rest of Atlas: search by topic, drill into a CFR section or airframe and see the research that bears on it.
5,559 matches
- NTSB Aircraft Accident Reports 2019 NTSB Accident report
Loss of Engine Power and Subsequent Ditching of Southwest Airlines Flight 1380
Southwest 1380 (B737-700) Philadelphia, April 17, 2018 — uncontained engine failure, passenger fatality. Examines the uncontained failure of a CFM56-7B fan blade due to high-cycle fatigue that breached the engine inlet c…
- arXiv 2019 ARXIV arXiv preprint
Nonlinear Model Predictive Control with Enhanced Actuator Model for Multi-Rotor Aerial Vehicles with Generic Designs
In this paper, we propose, discuss, and validate an online Nonlinear Model Predictive Control (NMPC) method for multi-rotor aerial systems with arbitrarily positioned and oriented rotors which simultaneously addresses th…
- arXiv 2019 ARXIV arXiv preprint
Self-Powered Solar Aerial Vehicles: Towards Infinite Endurance UAVs
A self-powered scheme is explored for achieving long-endurance operation, with the use of solar power and buoyancy lift. The end goal is the capability of infinite endurance while complying with the Unmanned Aerial Vehic…
- arXiv 2019 ARXIV arXiv preprint
Wave measurements from ship mounted sensors in the Arctic marginal ice zone
Increased research interest and economic activity in the Arctic raise the need for new observations of sea ice dynamics. Remote sensing as well as mathematical and numerical models of wave propagation in sea ice would be…
- Semantic Scholar 2019 Article (Journal of Neurologic Physical Therapy)
Calling Out MS Fatigue: Feasibility and Preliminary Effects of a Pilot Randomized Telephone-Delivered Exercise Intervention for Multiple Sclerosis Fatigue
Supplemental Digital Content is Available in the Text. Background and Purpose: Fatigue is a common and debilitating symptom of multiple sclerosis (MS).
- arXiv 2019 ARXIV arXiv preprint
Deep Reinforcement Learning Attitude Control of Fixed-Wing UAVs Using Proximal Policy Optimization
Contemporary autopilot systems for unmanned aerial vehicles (UAVs) are far more limited in their flight envelope as compared to experienced human pilots, thereby restricting the conditions UAVs can operate in and the typ…
- arXiv 2019 ARXIV arXiv preprint
Variable-Scaling Rate Control for Collision-Free Teleoperation of an Unmanned Aerial Vehicle
We propose that automatically adjusting the scale factor in rate-control teleoperation could enable a human operator to better control the motion of a remote robot.
- arXiv 2019 ARXIV arXiv preprint
Beacon-referenced Pursuit for Collective Motions in Three Dimensions
Motivated by real-world applications of unmanned aerial vehicles, this paper introduces a decentralized control mechanism to guide steering control of autonomous agents maneuvering in the vicinity of multiple moving enti…
- arXiv 2019 ARXIV arXiv preprint
Rapid Uncertainty Propagation and Chance-Constrained Path Planning for Small Unmanned Aerial Vehicles
With the number of small Unmanned Aircraft Systems (sUAS) in the national airspace projected to increase in the next few years, there is growing interest in a traffic management system capable of handling the demands of …
- NASA NTRS 2019 ARC Presentation
Fatigue and Fatigue Countermeasures
Sleep can play an important role in alleviating health disparities, as inadequate sleep is associated with serious, adverse health conditions including cardiovascular disease, diabetes, obesity, cancer, and premature mor…
- arXiv 2019 ARXIV arXiv preprint
3D-Map Assisted UAV Trajectory Design Under Cellular Connectivity Constraints
The enabling of safe cellular controlled unmanned aerial vehicle (UAV) beyond visual line of sight is expected to open important future opportunities in the area of transportation, goods delivery, and system monitoring.
- arXiv 2019 ARXIV arXiv preprint
Trajectory Synthesis for a UAV Swarm to Perform Resilient Requirement-Aware Surveillance: A Smart Grid-based Study
A smart grid is a widely distributed engineering system with overhead transmission lines. Physical damage to these power lines, from natural calamities or technical failures, will disrupt the functional integrity of the …
- Semantic Scholar 2019 Article (The International Journal of Management Education)
A new training program in developing cultural intelligence can also improve innovative work behavior and resilience: A longitudinal pilot study of graduate students and professional employees
Abstract The ever-increasing globalization and workforce diversity in today's business environment present ongoing challenges for organizational leaders and employees who wish to function effectively in cross-cultural se…
- Semantic Scholar 2019 Article (Psychology of Sport And Exercise)
The feasibility of Pilates to improve symptoms of anxiety, depression, and fatigue among people with Multiple Sclerosis: An eight-week randomized controlled pilot trial
Abstract Objective Evidence supports benefits of exercise for mental health among people with Multiple Sclerosis (PwMS). However, non-traditional exercise modes like Pilates remain understudied.
- arXiv 2019 ARXIV arXiv preprint
Method to Characterize Potential UAS Encounters Using Open Source Data
As unmanned aerial systems (UASs) increasingly integrate into the US national airspace system, there is an increasing need to characterize how commercial and recreational UASs may encounter each other.
- arXiv 2019 ARXIV arXiv preprint
Application of the second law to the atmosphere: impacts of the third-law definition for the moist-air entropy
Calculations of entropy fluxes and production rate have been evaluated with some success to study atmospheric processes. However, recurring questions arise as to how best to take into account entropy flux due to radiatio…
- Embry-Riddle Scholarly Commons 2019 ERAU Journal article (IJAAA)
Cleared to Land: Pilot Visual Detection of Small Unmanned Aircraft During Final Approach
Sighting reports of unmanned aircraft systems (UAS) by pilots, air traffic controllers, and other aviation stakeholders have continued to rise since the Federal Aviation Administration (FAA) began tracking in 2014.
- arXiv 2019 ARXIV arXiv preprint
Ferrofluid Droplet Behavior on Gradient Surfaces Inside a Uniform Magnetic Field
The spontaneous motion of liquid droplets on solid surfaces is the result of an unbalanced surface tension force, which is sometimes called the "Marangoni effect".
- arXiv 2019 ARXIV arXiv preprint
Toward Underground Localization: Lidar Inertial Odometry Enabled Aerial Robot Navigation
Localization can be achieved by different sensors and techniques such as a global positioning system (GPS), wifi, ultrasonic sensors, and cameras.
- NASA NTRS 2019 ARC Conference Paper
Validation of Proposed Go-Around Criteria Under Various Environmental Conditions
This paper evaluates the effects of environmental conditions on touchdown performance under varying approach states and validates proposed go-around criteria developed using data from a previously conducted study under t…
- arXiv 2019 ARXIV arXiv preprint
A Safety Constrained Control Framework for UAVs in GPS Denied Environment
Unmanned aerial vehicles (UAVs) suffer from sensor drifts in GPS denied environments, which can lead to potentially dangerous situations.
- arXiv 2019 ARXIV arXiv preprint
The effect of turbulence on drifting snow sublimation
Sublimation of drifting snow, which is significant for the balances of mass and energy of the polar ice sheet, is a complex physical process with intercoupling between ice crystals, wind field, temperature, and moisture.…
- NASA NTRS 2019 ARC Conference Paper
Training for Long-Duration Space Missions: A Literature Review into Skill Retention and Generalizability
In long-duration space missions, skill retention and generalizability become ever more important as mission length increases, for it is through these capabilities that astronaut crews achieve autonomy.
- arXiv 2019 ARXIV arXiv preprint
Autonomous Control of a Quadrotor-Manipulator; Application of Extended State Disturbance Observer
In this work, the autonomous control of a quadrotor-manipulator unmanned aerial vehicle is treated using an extended dynamic model. Due to persistent aerodynamic disturbances and dynamic couplings, the control of a quadr…
- arXiv 2019 ARXIV arXiv preprint
The friction of tilted skates on ice
The friction felt by a speed skater is calculated as function of the velocity and tilt angle of the skate. This calculation is an extension of the more common theory of friction of upright skates.
- Embry-Riddle Scholarly Commons 2019 ERAU Journal article (IJAAA)
A Data Mining Approach to Building a Predictive Model of Low-Cost Carriers' Presence in the U.S. Domestic Routes
The purpose of the study was to build the predictive model of the presence of U.S. low-cost carriers (LCCs) in the domestic network structure.
- arXiv 2019 ARXIV arXiv preprint
Autoignition and detonation development from a hot spot inside a closed chamber: effects of end wall reflection
The advancement of highly boosted internal combustion engines (ICEs) with high thermal efficiency is mainly constrained by knock and super-knock respectively due to the end gas autoignition and detonation development.
- Semantic Scholar 2019 Article (Clinical Interventions in Aging)
The Effectiveness Of Radial Extracorporeal Shock Wave Therapy In Patients With Chronic Low Back Pain: A Prospective, Randomized, Single-Blinded Pilot Study
Purpose This prospective, randomized and single-blinded study assesses the influence of radial extracorporeal shock wave therapy (rESWT) in patients with low back pain (LBP).
- Semantic Scholar 2019 Article (2019 IEEE 1st International Conference on Civil Aviation Safety and Information Technology (ICCASIT))
Grey Correlation Analysis of Hard Landing Based on QAR Data
In this paper, an analysis model is established based on grey theory, and the key flight control parameters of hard landing events are studied by using Quick Access Recorder (QAR) decoded data.
- Semantic Scholar 2019 Article (2019 IEEE 16th International Conference on Smart Cities: Improving Quality of Life Using ICT & IoT and AI (HONET-ICT))
Your Flight Data is on Us!!
The Flight Data Tracker (FDT) developed at SUNY Fredonia is a system for transmitting and saving flight safety data in real-time on the cloud that is otherwise only stored in an aircraft’s Flight Data Recorder (aka FDR o…
- NASA NTRS 2019 ARC Abstract
"Sensor Web Evolution - Webs of Webs for NASA Science - Focus on small Uninhabited Aerial Systems (sUAS)"
This paper will describe the evolution of information collection, derivation and delivery mechanisms in webs of NASA sensor webs, with a focus on recent advancements in small Uninhabited Aerial Systems (sUAS).
- NASA NTRS 2019 LaRC Poster
Combining GOES-16 and Surface Ceilometer Data to Improve Cloud Ceiling Estimates over the U.S.
To better address the low ceiling hazard to aviation, a hybrid approach is taken that utilizes satellite data to extend cloud ceiling information contained in surface station observations to much wider areas.
- Semantic Scholar 2019 Article (Cancer)
Internet-Assisted Cognitive Behavioral Intervention for Targeted Therapy–Related Fatigue in Chronic Myeloid Leukemia: Results From a Pilot Randomized Trial
Fatigue is a common and disabling side effect of targeted therapies such as tyrosine kinase inhibitors (TKIs) used to treat chronic myeloid leukemia (CML).
- Semantic Scholar 2019 Article (BioMed Research International)
Comparison of the Effectiveness of High-Intensity Interval Training in Hypoxia and Normoxia in Healthy Male Volunteers: A Pilot Study
Aims The study investigated the effect of high-intensity interval training in hypoxia and normoxia on serum concentrations of proangiogenic factors, nitric oxide, and inflammatory responses in healthy male volunteers.
- arXiv 2019 ARXIV arXiv preprint
Ship resistance when operating in floating ice floes: a combined CFD&DEM approach
Whilst climate change is transforming the Arctic into a navigable ocean where small ice floes are floating on the sea surface, the effect of such ice conditions on ship performance has yet to be understood.
- NASA NTRS 2019 ARC Poster
The Relationship between Workload, Performance and Fatigue in a Short-Haul Airline
Short-haul flights are associated with irregular work schedules and increased workload, due to frequent takeoffs and landings. We examined the relationship between pilot workload, performance and subjective fatigue durin…
- NTSB Safety Studies 2019 NTSB Safety study
Bell 525 Relentless In-Flight Breakup
Investigation report and safety study on the 6 July 2016 in-flight breakup of a Bell 525 Relentless helicopter prototype during a developmental flight test near Italy, Texas.
- NTSB Aircraft Accident Reports 2019 NTSB Accident report
In-Flight Breakup of Bell 525 Relentless Helicopter
Bell 525 prototype helicopter in-flight breakup near Italy, TX, July 6, 2016 — 2 fatalities. Investigation of the developmental-flight-test in-flight breakup of a Bell 525 Relentless prototype.
- arXiv 2019 ARXIV arXiv preprint
Experimental Validation of Stable Coordination for Multi-Robot Systems with Limited Fields of View using a PortableMulti-Robot Testbed
In this paper, we address the problem of stable coordinated motion in multi-robot systems with limited fields of view (FOVs). These problems arise naturally for multi-robot systems that interact based on sensing, such as…
- arXiv 2019 ARXIV arXiv preprint
Freezing a rivulet
We investigate experimentally the formation of the particular ice structure obtained when a capillary trickle of water flows on a cold substrate.
- arXiv 2019 ARXIV arXiv preprint
Special Orthogonal Group SO(3), Euler Angles, Angle-axis, Rodriguez Vector and Unit-Quaternion: Overview, Mapping and Challenges
The attitude of a rigid-body in the three dimensional space has a unique and global definition on the Special Orthogonal Group SO (3).
- arXiv 2019 ARXIV arXiv preprint
Flight Controller Synthesis Via Deep Reinforcement Learning
Traditional control methods are inadequate in many deployment settings involving control of Cyber-Physical Systems (CPS). In such settings, CPS controllers must operate and respond to unpredictable interactions, conditio…
- arXiv 2019 ARXIV arXiv preprint
A Swash Mass Unmanned Aerial Vehicle: Design, Modeling and Control
In this paper, a new unmanned aerial vehicle (UAV) structure, referred to as swash mass UAV, is presented. It consists of a double blade coaxial shaft rotor and four swash masses that allow changing the orientation and m…
- Semantic Scholar 2019 Article (Cognitive and Behavioral Neurology)
Effects of a Mixed Reality-based Cognitive Training System Compared to a Conventional Computer-assisted Cognitive Training System on Mild Cognitive Impairment: A Pilot Study
Background: Mixed reality (MR) technology, which combines the best features of augmented reality and virtual reality, has recently emerged as a promising tool in cognitive rehabilitation therapy.
- FAA-affiliated R&D (MITRE / Volpe / FAA Tech Center) 2019 FAA-TC FAA Tech Center certification report
Engine Bird Ingestion Certification Testing — Large Flocking Birds
Hughes Technical Center bird-ingestion certification testing for turbofan engines — drove revisions to FAR 33.76 large-bird ingestion thresholds after the Hudson River ditching (NTSB AAR-11/01).
- Semantic Scholar 2019 Article (BMC Medical Education)
Determining the feasibility and effectiveness of brief online mindfulness training for rural medical students: a pilot study
We sought to determine the feasibility and effectiveness of a mindfulness training program, delivered online to medical students at a Rural Clinical School.
- arXiv 2019 ARXIV arXiv preprint
An optimization framework for route design and allocation of aircraft to multiple departure routes
In this article, we present the development of a two-step optimization framework to deal with the design and selection of aircraft departure routes and the allocation of flights among these routes.
- NASA NTRS 2019 ARC Conference Paper
Pilot Evaluation of Proposed Go-Around Criteria for Transport Category Aircraft
The primary objective of this study was to capture pilot feedback and decision-making with regard to proposed, hypothetical, go-around criteria that were developed based on previous research.
- NASA NTRS 2019 GRC Poster
Molten Silicate Reactivity with Environmental Barrier Coating Materials for Gas Turbine Engine Applications
Rare earth (RE) disilicates are utilized in environmental barrier coatings (EBCs) to protect SiC-based ceramic matrix composites (CMCs) from destructive reactions with water vapor and other combustion species.
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
NASA research experience on jet aircraft control problems in severe turbulence
NASA research experience on jet aircraft control problems in severe turbulence