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 KSC Conference Paper
Space Shuttle Corrosion Protection Performance
The reusable Manned Space Shuttle has been flying into Space and returning to earth for more than 25 years. The launch pad environment can be corrosive to metallic substrates and the Space Shuttles are exposed to this en…
- NASA NTRS 2019 HQ Other
N.A.C.A. Stall-Warning Device
With some airplanes the approach to the stall is accompanied by changes in the behavior, such as tail buffeting or changes in the control characteristics of the airplane so that the pilot obtains a warning of the impendi…
- NASA NTRS 2019 HQ Other - Patent
Dual Expander Cycle Rocket Engine with an Intermediate, Closed-cycle Heat Exchanger
A dual expander cycle (DEC) rocket engine with an intermediate closed-cycle heat exchanger is provided. A conventional DEC rocket engine has a closed-cycle heat exchanger thermally coupled thereto.
- arXiv 2019 ARXIV arXiv preprint
Trajectory-Based Urban Air Mobility (UAM) Operations Simulator (TUS)
Nowadays, the demand for optimized services in urban environments to provide better society wellness is increasing. In this sense, ground transportation in dense urban environments has been facing challenges for many yea…
- arXiv 2019 ARXIV arXiv preprint
Towards Integrating Formal Verification of Autonomous Robots with Battery Prognostics and Health Management
The battery is a key component of autonomous robots. Its performance limits the robot's safety and reliability. Unlike liquid-fuel, a battery, as a chemical device, exhibits complicated features, including (i) capacity f…
- Semantic Scholar 2019 Article (American Journal of Audiology)
Diurnal Cortisol Levels and Subjective Ratings of Effort and Fatigue in Adult Cochlear Implant Users: A Pilot Study
Purpose There is a growing body of literature that suggests a linkage between impaired auditory function, increased listening effort, and fatigue in children and adults with hearing loss.
- arXiv 2019 ARXIV arXiv preprint
A Domain-Knowledge-Aided Deep Reinforcement Learning Approach for Flight Control Design
This paper aims to examine the potential of using the emerging deep reinforcement learning techniques in flight control. Instead of learning from scratch, we suggest to leverage domain knowledge available in learning to …
- NASA NTRS 2019 GSFC Reprint (Version printed in journal)
The Effects of Safety Information on Aeronautical Decision Making
The importance of aeronautical decision making (ADM) has been considered one of the most critical issues of flight education for future professional pilots.
- NASA NTRS 2019 HQ Other - NASA Memorandum (MEMO)
Crash-Fire Protection System for T-56 Turbopropeller Engine Using Water as Cooling and Inerting Agent
A crash-fire protection system to suppress the ignition of crash-spilled fuel that may be ingested by a T-56 turbopropeller engine is described.
- NASA NTRS 2019 LaRC Other - NASA Technical Note (TN)
Thrust Characteristics of Multiple Lifting Jets in Ground Proximity
An investigation has been made to determine the thrust characteristics within ground proximity of a series of models which might represent vertical take-off-and-landing (VTOL) aircraft with multiple exit jet engines exha…
- NASA NTRS 2019 HQ Other - NASA Technical Note (TN)
A Combined Water-Bromotrifluoromethane Crash-Fire Protection System for a T-56 Turbopropeller Engine
A crash-fire protection system is described which will suppress the ignition of crash-spilled fuel that may be ingested by a T-56 turbo-propeller engine.
- NASA NTRS 2019 GSFC Reprint (Version printed in journal)
Another Approach to Enhance Airline Safety: Using Management Safety Tools
The ultimate goal of conducting an accident investigation is to prevent similar accidents from happening again and to make operations safer system-wide.
- NASA NTRS 2019 HQ Other - NASA Technical Note (TN)
Longitudinal Aerodynamic Characteristics of a Four-Propeller Deflected Slipstream VTOL Model Including the Effects of Ground Proximity
Results are presented of a wind-tunnel investigation of the longitudinal stability, control, and performance characteristics of a model of a four-propeller deflected-slipstream VTOL airplane in the transition speed range…
- NASA NTRS 2019 HQ Book
The Airline Quality Rating 2003
The Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline quality on combined multiple performance criteria.
- NASA NTRS 2019 HQ Other
Pilot Program for the Development of Classification and Accuracy Assessment Methods and Improved Accessibility for Landsat and Related GIS Data and Technology Transfer of These Methods to State and Local Governments
This project has a single, comprehensive objective that is manifested in many tangible products and impacts throughout the state and the mid-south region.
- arXiv 2019 ARXIV arXiv preprint
Persistent Surveillance With Energy-Constrained UAVs and Mobile Charging Stations
We address the problem of achieving persistent surveillance over an environment by using energy-constrained unmanned aerial vehicles (UAVs), which are supported by unmanned ground vehicles (UGVs) serving as mobile chargi…
- NASA NTRS 2019 LaRC Other - NASA Technical Note (TN)
Investigation of a Water-Pond Arresting of a Dynamic Model of a Jet Transport
Brief dynamic-model tests have been made at the request of the Federal Aviation Agency to investigate the use of a shallow pond of water at the end of a runway as a means of arresting jet-transport aircraft when they are…
- NASA NTRS 2019 HQ Conference Proceedings
The Conference Proceedings of the 1998 Air Transport Research Group (ATRG) of the WCTR Society
Thirteen papers (presentations) from the 8th World Conference on Transportation Research are presented. Topics include European Airline competition, cost analyses, performance evaluations, deregulation; aviation policy i…
- NASA NTRS 2019 HQ Reprint (Version printed in journal)
Quality Training and Learning in Aviation: Problems of Alignment
The challenge of producing training programs that lead to quality learning outcomes is ever present in aviation, especially when economic and regulatory pressures are brought into the equation.
- NASA NTRS 2019 HQ Other - NASA Technical Note (TN)
A Summary of Operating Conditions Experienced by Three Military Helicopters and a Mountain-Based Commercial Helicopter
The results of a survey of the flight conditions experienced by three military helicopters engaged in simulated and actual military missions, and a commercial helicopter operated in the mountainous terrain surrounding De…
- NASA NTRS 2019 HQ Reprint (Version printed in journal)
Aviation System Safety and Pilot Risk Perception: Implications for Enhancing Decision-Making Skills
This research explores risk perception in a defined population of flight instructors and the implications of these views for flight training.
- NASA NTRS 2019 HQ Conference Paper
Cloudy 94 and Applications to Quasar Emission Line Regions
This review discusses the most recent developments of the plasma simulation code Cloudy and its application to the, emission-line regions of quasars.
- NASA NTRS 2019 HQ Conference Proceedings
Human Factors Certification of Advanced Aviation Technologies
Proceedings of the Human Factors Certification of Advanced Aviation Technologies Conference held at the Chateau de Bonas, near Toulouse, France, 19-23 July 1993.
- NASA NTRS 2019 HQ Reprint (Version printed in journal)
The Effect of Corporate Influence in the Short Haul Business Travel Market
The importance of corporate involvement in the decision making process for business related air travel is being increasingly recognised in the literature. Business travellers consume air services (i.e.
- NASA NTRS 2019 GSFC Reprint (Version printed in journal)
Corporate Social Responsibility in Aviation
The dialog within aviation management education regarding ethics is incomplete without a discussion of corporate social responsibility (CSR).
- NASA NTRS 2019 HQ Technical Memorandum (TM)
Ditching Investigation of a Dynamic Model of a HU2K-1 Helicopter
Various configurations and approach conditions were investigated in order to determine the ditching behavior and the best ditching procedure.
- NASA NTRS 2019 HQ Conference Paper
Icing: Accretion, Detection, Protection
The global aircraft industry and its regulatory agencies are currently involved in three major icing efforts: ground icing; advanced technologies for in-flight icing; and tailplane icing.
- NASA NTRS 2019 HQ Reprint (Version printed in journal)
The Effect of Corporate Influence in the Short Haul Business Travel Market
The importance of corporate involvement in the decision making process for business related air travel is being increasingly recognized in the literature. Business travellers consume air services (i.e.
- NASA NTRS 2019 HQ Reprint (Version printed in journal)
The ''Rock'': The Role of the Press in Bringing about Change in Aircraft Accident Policy
From 1926 to 1938, the Aeronautics Branch, forerunner of the Federal Aviation Administration (FAA), had been charged with aircraft accident investigation.
- arXiv 2019 ARXIV arXiv preprint
Robust Translational Force Control of Multi-Rotor UAV for Precise Acceleration Tracking
In this paper, we introduce a translational force control method with disturbance observer (DOB)-based force disturbance cancellation for precise three-dimensional acceleration control of a multi-rotor UAV.
- NASA NTRS 2019 HQ Conference Paper
Fly-by-Wire Flight Control System Experience with a Free-Flight Lunar-Landing Research Vehicle
Ground and flight tests to evaluate lunar landing research vehicle fly-by-wire control system
- NASA NTRS 2019 HQ Other - NASA Technical Note (TN)
Investigation of Propeller-power-plant Autoprecession Boundaries for a Dynamic-aeroelastic Model of a Four-engine Turboprop Transport Airplane
A flexibly mounted aircraft engine may under certain conditions experience a self-excited whirling instability involving a coupling between the gyroscopic and aerodynamic forces acting on the propeller, and the inertial,…
- NASA NTRS 2019 HQ Contractor Report (CR)
Aircraft Engine Sump Fire Mitigation
An investigation was performed of the conditions in which fires can result and be controlled within the bearing sump simulating that of a gas turbine engine; Esso 4040 Turbo Oil, Mobil Jet 2, and Monsanto MCS-2931 lubric…
- NASA NTRS 2019 ARC Conference Paper
Clustering Days with Similar Airport Weather Conditions
On any given day, traffic flow managers must often rely on past experience and intuition when developing traffic flow management initiatives that mitigate imbalances between the aircraft demand and the weather impacted a…
- NASA NTRS 2019 AFRC Presentation
Unmanned Aircraft Systems (UAS) Integration in the National Airspace System (NAS) Project KDP-C Review
The topics discussed are the UAS-NAS project life-cycle and ARMD thrust flow down, as well as the UAS environments and how we operate in those environments.
- NASA NTRS 2019 ARC Abstract
Enhanced/Synthetic Vision Systems for Advanced Flight Decks
One of the most challenging arenas for enhanced and synthetic vision systems is the flight deck. Here, pilots must perform active and supervisory control behaviors based on imagery generated in real time or transduced fr…
- NASA NTRS 2019 AFRC Presentation
Unmanned Aircraft Systems Demand and Economic Benefit Forecast Study
This presentation describes the need to calculate projections for the demands and benefits of operating commercial unmanned aircraft within the NAS.
- NASA NTRS 2019 AFRC Presentation
UAS Integration in the NAS Project UAS Commericalization Industry Conference
Description and Update of NASA UAS in the NAS Project
- NASA NTRS 2019 AFRC Presentation
NASA UAS Integration Efforts
This is a benefit to NASA because of all the networking opportunities as well as sharing information about UAS-NAS within the UAS community. NASA has developed, and is executing, a Cohesive Strategy for UAS Integration
- NASA NTRS 2019 ARC Presentation
Clustering Days with Similar Airport Weather Conditions
On any given day, traffic flow managers must often rely on past experience and intuition when developing traffic flow management initiatives that mitigate imbalances between the aircraft demand and the weather impacted a…
- NTSB Aircraft Accident Reports 2019 NTSB Accident report
Embraer ERJ 175 Runway Excursion at Charlotte Douglas
Republic Airline ERJ-175 runway excursion CLT, January 2018. Examines a low-energy runway excursion involving misuse of autobrakes + thrust reverser response after a high-crosswind landing on a contaminated runway.
- NASA NTRS 2019 CDMS Conference Paper
Aircraft wake turbulence minimization by aerodynamic means
The paper reviews NASA's efforts on wake vortex turbulence minimization by aerodynamic design or retrofit modifications to large transport aircraft.
- NASA NTRS 2019 LaRC Conference Paper
Symbolic Computation of Strongly Connected Components Using Saturation
Finding strongly connected components (SCCs) in the state-space of discrete-state models is a critical task in formal verification of LTL and fair CTL properties, but the potentially huge number of reachable states and S…
- NASA NTRS 2019 CDMS Other
Experimental flight test vibration measurements and nondestructive inspection on a USCG HC-130H aircraft
This paper presents results of experimental flight test vibration measurements and structural inspections performed by the Federal Aviation Administration's Airworthiness Assurance NDI Validation Center (AANC) at Sandia …
- NASA NTRS 2019 LaRC Conference Paper
Detection of Intergranular Corrosion in Cold Plate Face Sheets
Cold plates are critical for cooling electronic systems in the shuttle. As a result of the environmental conditions in which they operate, water can condense between them and a support shelf.
- NASA NTRS 2019 AFRC Presentation
Where to Land: A Reachability Based Forced Landing Algorithm for Aircraft Engine Out Scenarios
No abstract available
- NASA NTRS 2019 JSC Abstract
Dynamic Visual Acuity and Landing Sickness in Crewmembers Returning from Long-Duration Spaceflight
Long-term exposure to microgravity causes sensorimotor adaptations that result in functional deficits upon returning to a gravitational environment.
- NASA NTRS 2019 LaRC Conference Paper
Quantifying Pilot Contribution to Flight Safety during Hydraulic Systems Failure
Accident statistics cite the flight crew as a causal factor in over 60% of large transport aircraft fatal accidents. Yet, a well-trained and well-qualified pilot is acknowledged as the critical center point of aircraft s…
- NASA NTRS 2019 ARC Presentation
NASA Airline Operations Research Center
This is a PowerPoint presentation NASA airline operations center (AOC) research. It includes information on using IBM Watson in the AOC.
- NASA NTRS 2019 LaRC Conference Publication (CP)
The 1991 International Conference on Aging Aircraft and Structural Airworthiness
Civil aviation serves a strategic interest to the United States. Thus, the need to maintain a high standard of aviation safety is axiomatic.