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
- NASA NTRS 2019 CDMS Contractor Report (CR)
Investigation of the sonic fatigue characteristics of randomly excited aluminum viscoelastic panels at ambient temperatures
Sonic fatigue effects on structural reliability of randomly excited aluminum viscoelastic panels at ambient temperatures
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
Application of ultrasonics to detection of fatigue cracks
Ultrasonics applied to detection of fatigue cracks in aluminum, mild steel, and alloys of aluminum and nickel
- Semantic Scholar 2019 Article (Neuropsychological Rehabilitation)
Cognitive behavioural therapy for post-stroke fatigue and sleep disturbance: a pilot randomised controlled trial with blind assessment
Overall, CBT is a promising treatment for improving post-stroke fatigue, sleep quality and depression and warrant extension to a phase III clinical trial.
- arXiv 2019 ARXIV arXiv preprint
ImgSensingNet: UAV Vision Guided Aerial-Ground Air Quality Sensing System
Given the increasingly serious air pollution problem, the monitoring of air quality index (AQI) in urban areas has drawn considerable attention.
- Semantic Scholar 2019 Article (Acta Cardiologica)
Effectiveness of high intensity interval training supplemented with peripheral and inspiratory resistance training in chronic heart failure: a pilot study
Abstract Background: Cardiac rehabilitation (CR) is an evidence-based therapy in chronic heart failure (CHF). There is still debate about the optimal training protocol in CHF.
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
Flat-spin recovery system
Spinning technique for low altitude, single parachute recovery system
- NASA NTRS 2019 CDMS Conference Paper
Summary of nasa research on jet transport control problems in severe turbulence.
Wind tunnel, simulator and flight test results to evaluate cockpit accelerations, handling qualities and stability and control of jet transports in severe turbulence
- NASA NTRS 2019 CDMS Conference Paper
A review of nasa high-altitude clear air turbulence sampling programs.
Occurrence frequency and intensity of clear air turbulence as function of altitude between 20,000 and 75,000 ft
- NASA NTRS 2019 CDMS Conference Paper
Integrated operating mode of the apollo mission simulator.
Integrated operating mode of Apollo mission simulator with mission control center for combined training of Apollo flight and ground crews
- NASA NTRS 2019 CDMS Conference Paper
Fatigue behavior of aluminum and titanium sheet materials down to -423 deg f.
Tension-compression fatigue properties under axial loading for aluminum and titanium sheet metal
- arXiv 2019 ARXIV arXiv preprint
Evaluating the Effects of Control Surfaces Failure on the GTM
Despite the advances in aircraft guidance and control systems technology, Loss of Control remains as the main cause of the fatal accidents of large transport aircraft.
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
Some aspects of wind shear in the upper atmosphere
Hydrodynamic turbulence and wind shear in upper atmosphere
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
Effects of gust-induced and maneuvering acceleration stress on pilot-vehicle performance
Piloted motion simulator study of gust induced and maneuvering acceleration stress on pilot performance in low level mission
- NASA NTRS 2019 CDMS Other - NASA Technical Note (TN)
Power spectral measurement of atmospheric turbulence in severe storms and cumulus clouds
Power spectrum measurements of atmospheric turbulence in severe storms and cumulus clouds
- Semantic Scholar 2019 Article (Inflammatory Bowel Diseases)
A Prospective Pilot Randomized Study: Electroacupuncture vs. Sham Procedure for the Treatment of Fatigue in Patients With Quiescent Inflammatory Bowel Disease.
BACKGROUND Fatigue is a common symptom in patients with inflammatory bowel disease (IBD), and it often persists despite clinical remission.
- arXiv 2019 ARXIV arXiv preprint
Connectivity-Aware UAV Path Planning with Aerial Coverage Maps
Cellular networks are promising to support effective wireless communications for unmanned aerial vehicles (UAVs), which will help to enable various long-range UAV applications.
- arXiv 2019 ARXIV arXiv preprint
Depth map estimation methodology for detecting free-obstacle navigation areas
This paper presents a vision-based methodology which makes use of a stereo camera rig and a one dimension LiDAR to estimate free obstacle areas for quadrotor navigation.
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
ANALYTICAL INVESTIGATION AND PREDICTION OF SPIN AND RECOVERY CHARACTERISTICS OF THE NORTH AMERICAN X-15 AIRPLANE
Spin and recovery characteristics of north american x-15 aircraft
- NASA NTRS 2019 CDMS Other - NASA Technical Note (TN)
Erosion Resistance and Failure Mechanisms of Several Nozzle Materials in a Small Solid-Propellant Rocket Engine
Erosion resistance and failure mechanisms of nozzle materials in small solid-propellant rocket engine
- NASA NTRS 2019 CDMS Other
THEORY AND IMPLEMENTATION OF THE PITOT-STATIC TECHNIQUE FOR UPPER ATMOSPHERIC MEASUREMENTS
Pitot-static technique for upper atmospheric measurements
- arXiv 2019 ARXIV arXiv preprint
Massive Autonomous UAV Path Planning: A Neural Network Based Mean-Field Game Theoretic Approach
This paper investigates the autonomous control of massive unmanned aerial vehicles (UAVs) for mission-critical applications (e.g., dispatching many UAVs from a source to a destination for firefighting).
- arXiv 2019 ARXIV arXiv preprint
Impact of 3D Antenna Radiation Patterns on TDOA-Based Wireless Localization of UAVs
Next big commercial applications of drones require to fly the drone beyond the visual line of sight (BVLOS). This inevitable ability to fly BVLOS will also necessitate the ability to keep track of the drone's location, i…
- NASA NTRS 2019 CDMS Other
SOME MEASURED CHARACTERISTICS OF SEVERE STORM TURBULENCE
Severe storm turbulence
- NASA NTRS 2019 CDMS Other
AUTORADIOGRAPHY OF FATIGUE FRACTURE IN ALUMINUM
Autoradiography of fatigue fracture in aluminum
- arXiv 2019 ARXIV arXiv preprint
Robust Cooperative Formation Control of Fixed-Wing Unmanned Aerial Vehicles
Robust cooperative formation control is investigated in this paper for fixed-wing unmanned aerial vehicles in close formation flight to save energy. A novel cooperative control method is developed.
- arXiv 2019 ARXIV arXiv preprint
Autonomous Air Traffic Controller: A Deep Multi-Agent Reinforcement Learning Approach
Air traffic control is a real-time safety-critical decision making process in highly dynamic and stochastic environments. In today's aviation practice, a human air traffic controller monitors and directs many aircraft fl…
- Semantic Scholar 2019 Article (Journal of pediatric hematology/oncology)
Cognitive Behavior Therapy for Persistent Severe Fatigue in Childhood Cancer Survivors: A Pilot Study
Objectives: Fatigue is a common and disabling late effect in childhood cancer survivors (CCS). In this pilot study, the effectiveness of cognitive behavior therapy (CBT) in CCS with persistent and severe fatigue was retr…
- arXiv 2019 ARXIV arXiv preprint
Resilient UAV Traffic Congestion Control using Fluid Queuing Models
In this paper, we address the issue of congestion in future Unmanned Aerial Vehicle (UAVs) traffic system in uncertain weather. We treat the traffic of UAVs as fluid queues, and introduce models for traffic dynamics at t…
- NASA NTRS 2019 ARC Technical Memorandum (TM)
Factors Affecting the Use of Emergency and Abnormal Checklists: Implications for Current and NextGen Operations
The purpose of the current study was two-fold: 1) identify current practices associated with the design and content of checklists used to guide pilot response to emergency and abnormal situations, particularly those know…
- arXiv 2019 ARXIV arXiv preprint
A Game Theoretical Framework for the Evaluation of Unmanned Aircraft Systems Airspace Integration Concepts
Predicting the outcomes of integrating Unmanned Aerial Systems (UAS) into the National Aerospace (NAS) is a complex problem which is required to be addressed by simulation studies before allowing the routine access of UA…
- arXiv 2019 ARXIV arXiv preprint
Drones in Distress: A Game-Theoretic Countermeasure for Protecting UAVs Against GPS Spoofing
One prominent security threat that targets unmanned aerial vehicles (UAVs) is the capture via GPS spoofing in which an attacker manipulates a UAV's global positioning system (GPS) signals in order to capture it.
- Semantic Scholar 2019 Article (Computing in Civil Engineering)
Vision-model-based Real-time Localization of Unmanned Aerial Vehicle for Autonomous Structure Inspection under GPS-denied Environment
UAVs have been widely used in visual inspections of buildings, bridges and other structures. In either outdoor autonomous or semi-autonomous flights missions strong GPS signal is vital for UAV to locate its own positions…
- arXiv 2019 ARXIV arXiv preprint
Indoor Testing and Simulation Platform for Close-distance Visual Inspection of Complex Structures using Micro Quadrotor UAV
In recent years, using drone, also known as unmanned aerial vehicle (UAV), in close-distance visual inspection has became an active area in many disciplines.
- Embry-Riddle Scholarly Commons 2019 ERAU Industry report (AQRR)
Airline Quality Rating 2019
To contribute to AQR 2020, we encourage you to take the Airline Passenger Survey. Please CLICK HERE. The results of the 29th annual national Airline Quality Rating (AQR).
- arXiv 2019 ARXIV arXiv preprint
A Hybrid Compositional Approach to Optimal Mission Planning for Multi-rotor UAVs using Metric Temporal Logic
This paper investigates a hybrid compositional approach to optimal mission planning for multi-rotor Unmanned Aerial Vehicles (UAVs). We consider a time critical search and rescue scenario with two quadrotors in a constra…
- Embry-Riddle Scholarly Commons 2019 ERAU Safety program report
Quality Analysis of United States Commercial Air Carriers: Airline Quality Rating 2019
Past research regarding major U.S. commercial air carriers and consumer perceptions of airline performance has provided little more than a descriptive “snapshot” of the average air traveler.
- Semantic Scholar 2019 Article (Aerospace Medicine and Human Performance)
Speech Analysis for Fatigue and Sleepiness Detection of a Pilot.
BACKGROUND: Mental fatigue and sleepiness are well recognized determinants of human-error related accidents and incidents in aviation.
- arXiv 2019 ARXIV arXiv preprint
MAT-Fly: An Educational Platform for Simulating Unmanned Aerial Vehicles Aimed to Detect and Track Moving Objects
The main motivation of this work is to propose a simulation approach for a specific task within the Unmanned Aerial Vehicle (UAV) field, i.e., the visual detection and tracking of arbitrary moving objects.
- arXiv 2019 ARXIV arXiv preprint
Theory for the effect of fluid inertia on the orientation of a small particle settling in turbulence
Ice crystals settling through a turbulent cloud are rotated by turbulent velocity gradients. In the same way, turbulence affects the orientation of aggregates of organic matter settling in the ocean.
- arXiv 2019 ARXIV arXiv preprint
Multi-agent estimation and filtering for minimizing team mean-squared error
Motivated by estimation problems arising in autonomous vehicles and decentralized control of unmanned aerial vehicles, we consider multi-agent estimation and filtering problems in which multiple agents generate state est…
- arXiv 2019 ARXIV arXiv preprint
Priority Maps for Surveillance and Intervention of Wildfires and other Spreading Processes
Unmanned Aerial Vehicle (UAV) path planning algorithms often assume a knowledge reward function or priority map, indicating the most important areas to visit.
- arXiv 2019 ARXIV arXiv preprint
Attitude- and Cruise Control of a VTOL Tiltwing UAV
This paper presents the mathematical modeling, controller design, and flight-testing of an over-actuated Vertical Take-off and Landing (VTOL) tiltwing Unmanned Aerial Vehicle (UAV).
- arXiv 2019 ARXIV arXiv preprint
Physics-Based Freely Scalable Continuum Deformation for UAS Traffic Coordination
This paper develops a novel physics-inspired traffic coordination approach and applies it to Unmanned Aircraft System (UAS) traffic management.
- Semantic Scholar 2019 Article (International Journal of Aviation Management)
How does aviation industry measure safety performance Current practice and limitations
In this paper we present a review of existing aviation safety metrics and we lay the foundation for our four-years research project entitled “Measuring Safety in Aviation – Developing Metrics for Safety Management System…
- arXiv 2019 ARXIV arXiv preprint
A magnetically driven equatorial jet in Europa's ocean
During recent decades, data from space missions have provided strong evidence of deep liquid oceans underneath a thin outer icy crust on several moons of Jupiter, particularly Europa.
- arXiv 2019 ARXIV arXiv preprint
Object recognition and tracking using Haar-like Features Cascade Classifiers: Application to a quad-rotor UAV
In this paper, we develop a functional Unmanned Aerial Vehicle (UAV), capable of tracking an object using a Machine Learning-like vision system called Haar feature-based cascade classifier.
- arXiv 2019 ARXIV arXiv preprint
Realtime Rooftop Landing Site Identification and Selection in Urban City Simulation
Safe autonomous landing in urban cities is a necessity for the growing Unmanned Aircraft Systems (UAS) industry. In urgent situations, building rooftops, particularly flat rooftops, can provide local safe landing zones f…
- arXiv 2019 ARXIV arXiv preprint
A Novel Technique for Rejecting Non-Aircraft Artefacts in Above Horizon Vision-Based Aircraft Detection
Unmanned aerial vehicle (UAV) operations are steadily expanding into many important applications. A key technology for better enabling their commercial use is an onboard sense and avoid (SAA) technology which can detect …
- arXiv 2019 ARXIV arXiv preprint
Below Horizon Aircraft Detection Using Deep Learning for Vision-Based Sense and Avoid
Commercial operation of unmanned aerial vehicles (UAVs) would benefit from an onboard ability to sense and avoid (SAA) potential mid-air collision threats.
- Semantic Scholar 2019 Article (Odontology : official journal of The Society of the Nippon Dental University)
Fatigue resistance of monolithic lithium disilicate occlusal veneers: a pilot study
A threshold value of 0.8 mm may represent an acceptable compromise between fatigue resistance and tooth reduction in LD molar veneer restorations using a simplified fatigue testing machine.