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 ARC Preprint (Draft being sent to journal)
NASA Spinoff Article: Automated Procedures To Improve Safety on Oil Rigs
On May 11th, 2013, two astronauts emerged from the interior of the International Space Station (ISS) and worked their way toward the far end of spacecraft.
- NASA NTRS 2019 KSC Other
Design and Development of Functionally Effective Human-Machine Interfaces for Firing Room Displays
This project involves creating software for support equipment used on the Space Launch System (SLS). The goal is to create applications and displays that will be used to remotely operate equipment from the firing room an…
- NASA NTRS 2019 ARC Reprint (Version printed in journal)
Structural Diversity in the Inner Ear of Teleost Fishes: Implications for Connections to the Mauthner Cell
A body of literature suggests that the Mauthner cell startle response can be elicited by stimulation of the ear. While we know that there are projections to the M-cell from the ear, the specific endorgan(s) of the ear pr…
- NASA NTRS 2019 JSC Conference Paper
On the Modeling of Electrical Effects Experienced by Space Explorers During Extra Vehicular Activities: Intracorporal Currents, Resistances, and Electric Fields
Recent research has shown that space explorers engaged in Extra Vehicular Activities (EVAs) may be exposed, under certain conditions, to undesired electrical currents.
- NASA NTRS 2019 LaRC Conference Paper
Psychophysiological Sensing and State Classification for Attention Management in Commercial Aviation
Attention-related human performance limiting states (AHPLS) can cause pilots to lose airplane state awareness (ASA), and their detection is important to improving commercial aviation safety.
- NASA NTRS 2019 JSC Other - NASA Tech Brief
Module for Oxygenating Water without Generating Bubbles
A module that dissolves oxygen in water at concentrations approaching saturation, without generating bubbles of oxygen gas, has been developed as a prototype of improved oxygenators for water-disinfection and water-purif…
- NASA NTRS 2019 KSC Thesis/Dissertation
A Study to Estimate the Effectiveness of Visual Testing Training for Aviation Maintenance Management
The Air Commerce Act of 1926 set the beginning for standards in aviation maintenance. Even after deregulation in the late l970s, maintenance standards and requirements still have not changed far from their initial criter…
- NASA NTRS 2019 LaRC Other
Flight Simulator and Training Human Factors Validation
Loss of control has been identified as the leading cause of aircraft accidents in recent years. Efforts have been made to better equip pilots to deal with these types of events, commonly referred to as upsets.
- NASA NTRS 2019 CDMS Other - NASA Tech Brief
In-Flight Simulator for IFR Training
Computer-controlled unit feeds navigation signals to airplane instruments. Electronic training system allows students to learn to fly according to instrument flight rules (IFR) in uncrowded airspace.
- NASA NTRS 2019 JSC Other - NASA Tech Brief
Algorithm for Training a Recurrent Multilayer Perceptron
An improved algorithm has been devised for training a recurrent multilayer perceptron (RMLP) for optimal performance in predicting the behavior of a complex, dynamic, and noisy system multiple time steps into the future.…
- NASA NTRS 2019 CDMS Other - NASA Tech Brief
Pseudogradient Training For A Class Of Neural Networks
Developmental second-order recurrent neural networks of special type modified to enhance stability in face of inputs beyond range of inputs on which trained.
- NASA NTRS 2019 JSC Presentation
Flight Operations
Outline the process that takes new hires with zero knowledge all the way to the point of completing missions in Flight Operations. Audience members should be able to outline the attributes of a flight controller and inst…
- NASA NTRS 2019 CDMS Other - NASA Tech Brief
Testing Instrument for Flight-Simulator Displays
Displays for flight-training simulators rapidly aligned with aid of integrated optical instrument. Calibrations and tests such as aligning boresight of display with respect to user's eyes, checking and adjusting display …
- NASA NTRS 2019 LaRC Technical Memorandum (TM)
Survey of Quantitative Research Metrics to Assess Pilot Performance in Upset Recovery
Accidents attributable to in-flight loss of control are the primary cause for fatal commercial jet accidents worldwide. The National Aeronautics and Space Administration (NASA) conducted a literature review to determine …
- NASA NTRS 2019 LaRC Technical Memorandum (TM)
Review of Research On Guidance for Recovery from Pitch Axis Upsets
A literature review was conducted to identify past efforts in providing control guidance for aircraft upset recovery including stall recovery.
- NASA NTRS 2019 ARC Technical Memorandum (TM)
Autogenic-Feedback Training Exercise (AFTE) Mitigates the Effects of Spatial Disorientation to Simulated Orion Spacecraft Re-Entry: Individual Differences
NASA has identified a potential risk of spatial disorientation to future astronauts during re-entry of the proposed Orion spacecraft. The purpose of this study was to determine if a 6-hour physiological training procedur…
- NASA NTRS 2019 LaRC Other - Patent
System and Method for Providing Model-Based Alerting of Spatial Disorientation to a Pilot
A system and method monitor aircraft state parameters, for example, aircraft movement and flight parameters, applies those inputs to a spatial disorientation model, and makes a prediction of when pilot may become spatial…
- NASA NTRS 2019 LaRC Technical Memorandum (TM)
Mock Certification Basis for an Unmanned Rotorcraft for Precision Agricultural Spraying
This technical report presents the results of a case study using a hazard-based approach to develop preliminary design and performance criteria for an unmanned agricultural rotorcraft requiring airworthiness certificatio…
- NASA NTRS 2019 ARC Conference Paper
Argument-Based Airworthiness Assurance of Small UAS
Presently, there are three avenues by which Unmanned Aircraft System (UAS) operations are authorized in the U.S. National Airspace System (NAS): obtaining either (i) a certificate of authorization (COA), or (ii) a specia…
- NASA NTRS 2019 HQ Other - Patent
In-Flight Pitot-Static Calibration
A GPS-based pitot-static calibration system uses global output-error optimization. High data rate measurements of static and total pressure, ambient air conditions, and GPS-based ground speed measurements are used to com…
- NASA NTRS 2019 CDMS Other - NASA Tech Brief
Miniature Flow-Direction/Pitot-Static Pressure Probes
Precision flow-direction/pitot-static pressure probes, ranging from 0.035 to 0.090 inch (0.89 to 2.29 mm) in outside diameter, successfully fabricated and calibrated for use in Langley 20-inch Mach 6 Tunnel.
- NASA NTRS 2019 GRC Technical Memorandum (TM)
Investigation of Spiral Bevel Gear Condition Indicator Validation via AC-29-2C Combining Test Rig Damage Progression Data with Fielded Rotorcraft Data
This is the final of three reports published on the results of this project. In the first report, results were presented on nineteen tests performed in the NASA Glenn Spiral Bevel Gear Fatigue Test Rig on spiral bevel ge…
- NASA NTRS 2019 CDMS Other - NASA Tech Brief
Fault Detection and Isolation for Hydraulic Control
Pressure sensors and isolation valves act to shut down defective servochannel. Redundant hydraulic system indirectly senses failure in any of its electrical control channels and mechanically isolates hydraulic channel co…
- NASA NTRS 2019 GRC Technical Memorandum (TM)
Causal Factors and Adverse Events of Aviation Accidents and Incidents Related to Integrated Vehicle Health Management
Causal factors in aviation accidents and incidents related to system/component failure/malfunction (SCFM) were examined for Federal Aviation Regulation Parts 121 and 135 operations to establish future requirements for th…
- NASA NTRS 2019 ARC Conference Paper
Trajectory Specification for Automation of Terminal Air Traffic Control
"Trajectory specification" is the explicit bounding and control of aircraft tra- jectories such that the position at each point in time is constrained to a precisely defined volume of space.
- NASA NTRS 2019 ARC Technical Memorandum (TM)
Survey of Methods to Predict Controller Workload for Real-Time Monitoring of Airspace Safety
The Real Time Safety Monitoring (RTSM) approach allows for assessment and prediction of the safety margin in the National Airspace System (NAS) to help preempt incidents and accidents, rather than having to reactively mi…
- NASA NTRS 2019 ARC Abstract
Heart Rate Variability as a Measure of Airport Ramp-Traffic Controllers Workload
Heart Rate Variability (HRV) has been reported to reflect the person's cognitive and emotional stress levels, and may offer an objective measure of human-operator's workload levels, which are recorded continuously and un…
- NASA NTRS 2019 HQ Other - Patent
Automatic Dependent Surveillance Broadcast (ADS-B) System for Ownership and Traffic Situational Awareness
The present invention proposes an automatic dependent surveillance broadcast (ADS-B) architecture and process, in which priority aircraft and ADS-B IN traffic information are included in the transmission of data through …
- NASA NTRS 2019 AFRC Other
UAS-NAS Stakeholder Feedback Report
The need to fly UAS in the NAS to perform missions of vital importance to national security and defense, emergency management, science, and to enable commercial applications has been continually increasing over the past …
- NASA NTRS 2019 ARC Technical Memorandum (TM)
UAS-NAS Flight Test Series 3: Test Environment Report
The desire and ability to fly Unmanned Aircraft Systems (UAS) in the National Airspace System (NAS) is of increasing urgency. The application of unmanned aircraft to perform national security, defense, scientific, and em…
- NASA NTRS 2019 ARC Other
UAS-NAS Integrated Human in the Loop: Test Environment Report
The desire and ability to fly Unmanned Aircraft Systems (UAS) in the National Airspace System (NAS) is of increasing urgency. The application of unmanned aircraft to perform national security, defense, scientific, and em…
- NASA NTRS 2019 ARC Presentation
Flight Test Evaluation of an Unmanned Aircraft System Traffic Management (UTM) Concept for Multiple Beyond-Visual-Line-of-Sight (BVLOS) Operations
Many applications of small Unmanned Aircraft System (UAS) have been envisioned. These include surveillance of key assets such as pipelines, rail, or electric wires, deliveries, search and rescue, traffic monitoring, vide…
- NASA NTRS 2019 ARC Technical Memorandum (TM)
Modeling and Evaluating Pilot Performance in NextGen: Review of and Recommendations Regarding Pilot Modeling Efforts, Architectures, and Validation Studies
NextGen operations are associated with a variety of changes to the national airspace system (NAS) including changes to the allocation of roles and responsibilities among operators and automation, the use of new technolog…
- NASA NTRS 2019 ARC Technical Memorandum (TM)
Evaluating Nextgen Closely Spaced Parallel Operations Concepts with Validated Human Performance Models: Flight Deck Guidelines
The objectives of the current research were to develop valid human performance models (HPMs) of approach and land operations; use these models to evaluate the impact of NextGen Closely Spaced Parallel Operations (CSPO) o…
- NASA NTRS 2019 GSFC Book Chapter
Ultraviolet Satellite Measurements of Volcanic Ash
Ultraviolet (UV) remote sensing of volcanic ash and other absorbing aerosols from space began with the launch of the first Total Ozone Mapping Spectrometer (TOMS) instrument in 1978.
- NASA NTRS 2019 KSC Conference Paper
Martian Atmospheric Dust Mitigation for ISRU Intakes via Electrostatic Precipitation
The Mars 2020 and Mars Sample Return missions expected to fly to Mars within the next ten years will each include an In Situ Resource Utilization (ISRU) system.
- NASA NTRS 2019 JSC Other
Risk of Adverse Health and Performance Effects of Celestial Dust Exposure
Crew members can be directly exposed to celestial dust in several ways. After crew members perform extravehicular activities (EVAs), they may introduce into the habitat dust that will have collected on spacesuits and boo…
- NASA NTRS 2019 GSFC Preprint (Draft being sent to journal)
Is There a Metallicity Ceiling to Form Carbon Stars? - A Novel Technique Reveals a Scarcity of C-Stars in the Inner M31 Disk
We use medium-band near-infrared (NIR) Hubble Space Telescope WFC3 photometry with model NIR spectra of Asymptotic Giant Branch (AGB) stars to develop a new tool for efficiently distinguish- ing carbon-rich (C-type) AGB …
- NASA NTRS 2019 LaRC Conference Paper
Using Vision System Technologies for Offset Approaches in Low Visibility Operations
Flight deck-based vision systems, such as Synthetic Vision Systems (SVS) and Enhanced Flight Vision Systems (EFVS), have the potential to provide additional margins of safety for aircrew performance and enable the implem…
- NASA NTRS 2019 CDMS Reprint (Version printed in journal)
Age, splanchnic vasoconstriction, and heat stress during tilting
During upright tilting, blood is translocated to the dependent veins of the legs and compensatory circulatory adjustments are necessary to maintain arterial pressure.
- NASA NTRS 2019 LaRC Conference Paper
Toward Head-Up and Head-Worn Displays for Equivalent Visual Operations
A key capability envisioned for the future air transportation system is the concept of equivalent visual operations (EVO). EVO is the capability to achieve the safety of current-day Visual Flight Rules (VFR) operations a…
- NASA NTRS 2019 LaRC Abstract
Toward Head-Worn Displays for Equivalent Visual Operations
The Next Generation Air Transportation System represents an envisioned transformation to the U.S. air transportation system that includes an "equivalent visual operations" (EVO) concept, intended to achieve the safety an…
- NASA NTRS 2019 LaRC Conference Paper
Air STAR Beyond Visual Range UAS Description and Preliminary Test Results
The NASA Airborne Subscale Transport Aircraft Research Unmanned Aerial System project's capabilities were expanded by updating the system design and concept of operations.
- NASA NTRS 2019 GRC Technical Memorandum (TM)
Funding and Strategic Alignment Guidance for Infusing Small Business Innovation Research Technology Into Aeronautics Research Mission Directorate Projects at NASA Glenn Research Center for 2015
This document is intended to enable the more effective transition of NASA Glenn Research Center (GRC) SBIR technologies funded by the Small Business Innovation Research (SBIR) program as well as its companion, the Small …
- NASA NTRS 2019 GSFC Other - Journal Issue
Journal of Air Transportation, Volume 11, No. 1
Topics covered include: Analysis of System-wide Investment in the National Airspace System: A Portfolio Analytical Framework and an Example; Regional Air Transport in Europe: The Potential Role of the Civil Tiltrotor in …
- NASA NTRS 2019 GRC Technical Memorandum (TM)
Analysis of Aviation Safety Reporting System Incident Data Associated with the Technical Challenges of the Atmospheric Environment Safety Technology Project
This study analyzed aircraft incidents in the NASA Aviation Safety Reporting System (ASRS) that apply to two of the three technical challenges (TCs) in NASA's Aviation Safety Program's Atmospheric Environment Safety Tech…
- NASA NTRS 2019 GRC Technical Memorandum (TM)
Aviation Trends Related to Atmospheric Environment Safety Technologies Project Technical Challenges
Current and future aviation safety trends related to the National Aeronautics and Space Administration's Atmospheric Environment Safety Technologies Project's three technical challenges (engine icing characterization and…
- NASA NTRS 2019 LaRC Contractor Report (CR)
Frequency of Specific Categories of Aviation Accidents and Incidents During 2001-2010
The purpose of this study was to determine the types of accidents or incidents that are most important to the aviation safety risk. All accidents and incidents from 2001-2010 were assigned occurrence categories based on …
- NASA NTRS 2019 LaRC Contractor Report (CR)
Differences in Characteristics of Aviation Accidents during 1993-2012 Based on Flight Purpose
Usually aviation accidents are categorized and analyzed within flight conduct rules (Part 121, Part 135, Part 91) because differences in accident rates within flight rules have been demonstrated.
- NASA NTRS 2019 GRC Technical Memorandum (TM)
Investigation of Micro-Scale Architectural Effects on Damage of Composites
This paper presents a three-dimensional, energy based, anisotropic, stiffness reduction, progressive damage model for composite materials and composite material constituents.