Analytical Core Noise Model Improved for Modern Turbofan Engines
Cruise-Efficient, Low-Noise, Short-Takeoff-and-Landing Vehicle Studied for the Revolutionary System Concepts for Aeronautics Project
Water Injection in Commercial Aircraft Investigated for Increasing Engine Life and Reducing Costs and Emissions
XLerator Software Released
Global Integrated Design Environment (GLIDE) v.1.1 Software Released
Leak Sensor Project Achieved a Major Milestone--a Miniaturized Leak Sensor System With an Integrated Wireless Antenna
12-kW Proton-Exchange-Membrane Fuel Tested at Glenn
Nontoxic Turbine Power Unit Demonstrated Successfully
New Tools Developed for Bioscience Experiments on the International Space Station
High-Power Space Traveling-Wave Tube Demonstrated Record Power Levels
High-Fidelity International Space Station Flight Training Hardware Shipped to the NASA Johnson Space Center
Inflatable Membrane Reflector and Shape-Memory Polymer Antenna Developed for Space and Ground Communications Applications>
Software-Defined Radio Architecture Framework Developed for Space-Based Radios>
Software-Defined Radio Technology Analyzed for Space Exploration Scenario>
Reconfigurable, Software-Defined Waveform Developed on the Basis of theSoftware Communications Architecture>
Multifocal Flat Lens Demonstrated With Left-Handed Metamaterial
Robust Circuit Designs Developed for High-Frequency Vacuum Electronics Amplifiers>
High-Efficiency Power Combining of Ka-Band Traveling-Wave Tubes Demonstrated for High-Data-Rate Space Communications>
Lunar Radometric Navigation Analysis
Mobile Router Technology Investigated for Space Radiation Effects>
Advanced Extravehicular Activity Subsystems Tested at Desert Research and Technology Studies Field Outing>
Architectures and Protocols Assessed for Optical Networks Deployed on Aircraft Communication Systems>
Phase I Space Communications Testbed Developed
Closed-Loop Actuation Concepts Investigated for Active Clearance Control
Hybrid-Fuel-Cell Power System Modeling and Controls Design Being Developed
Retrofit Architecture for Intelligent Propulsion Control Demonstrated to Compensate for Thrust Asymmetry Due to Engine Degradation
Data Qualification and Validation Testbed--New Tool Developed and Demonstrated for Evaluating the Performance of Engine Health Management Systems
Fiber Bragg Gratings Operated at 1000 °C
In-Plane Biaxial Loading Tests Used to Develop and Optimize a Heater Head Pressure Vessel Design
Finite Element Analysis Used to Study a Rotating Disk Subject to Cracking Under Typical Turbine Engine Loading Conditions
Impact Damage in SiC/SiC Composite Materials Characterized With Pulsed Thermography
Broadband, Capacitive-Based Wireless Slip Ring Designed and Fabricated for Application in Turbomachinery
Quantum Optical System Developed for Ultra-Low-Power Communications
Molecular Rayleigh Scattering Technique Developed to Measure Temperature Fluctuations in Heated Gas Flows
Particle Image Velocimetry Used Successfully to Nonintrusively Capture Novel Features of Steady and Unsteady Exhaust Flows
Approaches Demonstrated for Flaw-Detection Enhancement for Liquid-Crystal-Display-Based Ultrasonic Imaging
False Alarms Reduced With New Fire Detection System
Nanometer Step Height Standard Chip Developed for Calibration of Scanning Probe Microscopy Instruments
Packaged SiC Transistor Operated at 500 °C for 2000 hr in Oxidizing Air Ambient
First-Principles-Based Battery Model Investigated for the International Space Station
Glenn’s Fuel Cell Test Laboratory Became Operational
Life-Cycle Testing of Mars Surveyor Program Lander Lithium-Ion Battery Achieved Over 10,000Low-Earth-Orbit Cycles
Flywheel Integrated Power and Attitude Control System Demonstrated
High-Power Hall Thruster Designed for Exploration Applications
Piezoelectric Ignition Systems Demonstrated for Spacecraft Propulsion Applications
Microwave Discharge and Neutralization Plasma Production
Developed as an Alternative to Direct-CurrentHollow Cathode Plasmas for Ion Propulsion
Hall Thruster Developed for Robotic Science Missions
Electric Propulsion Technology Developed for Prometheus 1
Brayton-Cycle Power-Conversion Unit Tested for Operational Vibration Levels
Novel Analysis Tools Created to Enable Stirling Radioisotope Space Power Systems
Brayton Power-Conversion Modeling Enhanced With Closed-Cycle System Simulation
Stirling Power Convertors Demonstrated in Extended Operation
Alpha-Voltaic Power Source Designs Investigated
Carbon Nanotubes Synthesized and Assessed for Space Photovoltaics
Indium Arsenide (InAs) Quantum Dots Grown for Space Solar Cells
Integrated Photovoltaic and Communications Technology Demonstrated
Contamination Flakes in the Discharge Chamber of a NASA Solar Electric Propulsion Technology Readiness (NSTAR) Ion Engine Found To Be Test-Cell Generated
Conductive Thermoplastic Composites Fabricated
Honeycomb Target Evaluated for Reducing Backsputter From Chamber Walls During Long-Life Tests of Ion Thrusters
Silicon Germanium Power Transistors Developed for Cryogenic Space Missions
Concepts Explored for Atmospheric Mining in the Outer Solar System
Combustion Experiments Performed With Metallized Gelled Propellants in a Pulse Detonation Engine
Miniature Pump for Spacecraft Designed and Tested
Critical Contributions to the Space Shuttle Return-to-Flight Effort Made by Glenn’s Ballistic Impact Team
Analysis and Modeling Methods Being Developed for Evaluating External Tank Foam
High-Temperature Chemical Reactions in Reinforced Carbon/Carbon Studied
Glenn Refractory Adhesive for Bonding and Exterior Repair (GRABER) Technology Given2005 R&D 100 Award
Flexible Metallic Overwrap Concept Evaluated for Potential On-Orbit Repair of Space Shuttle Leading Edges
Root Cause Determined for Cracking in the Niobium Reaction Control System Thrusters for the Space Shuttle Orbiter
Epoxy and Layered Silicate Nanocomposite Tanks Produced and Tested for Cryogen Storage Applications
Crack-Growth Properties of Specialty Windows for the International Space Station Fluids and Combustion Facility Evaluated
Active Clearance Control System Concept Performance Tests Successfully Completed at NASA Glenn
Laser Rig High-Heat-Flux Testing of Thermal Barrier Coatings at NASA Glenn Proved To Be Especially Valuable for Testing Combustor Section Coatings
Delamination-Indicating Thermal Barrier Coatings Using a Luminescent Sublayer Implemented Successfully
NiCrAlY and CuCr Protective Coatings Tested for Copper-Based Thrust Chambers
Probabilistic Fracture Strength of High-Aspect-Ratio Silicon Carbide Microspecimens Predicted
Numerical Analysis Methods Developed for Predicting the Oxidation Behavior in Carbon Silicon-Carbide Composite Structures
Design Analysis Methods Developed for Carbon-Fiber-Reinforced Silicon-Carbide Composite Structures
Advanced SiC/SiC Ceramic Composite Systems Developed for High-Temperature Structural Applications
Cumulative Fatigue Behavior Investigated for a Woven, Melt-Infiltrated SiC/SiC Composite
Multicomponent Hafnia-Based Oxide Systems Developed, Characterized, and Evaluated for Advanced Ceramic-Matrix-Composite Barrier-Coating Applications
Crack-Driving Forces Investigated in a Multilayered Coating System for Ceramic Matrix Composite Substrates
Silicone Elastomers Evaluated for Sealing Applications in Space Environments
Densities of Polymer Crosslinked Aerogels Minimized
New Perylene Dye Prepared
Polymers Developed That Change Shape When Exposed to Ultraviolet Light
Solid-Film Lubricants Tested for Galling and Wear Protection of Ti-6Al-4V Under Fretting Conditions inNASA and Department of Defense Aerospace Applications
Forces Generated by the Ballistic Impact of Ice Evaluated
Advanced Heat Treatment Technology for Superalloy Disks Verified
Relationship Between Microstructure and Hold-Time Crack-Growth Behavior in Nickel-Based Superalloys Investigated
Wire Drawing and Postprocessing Procedures Developed for a New NiTiPt High-TemperatureShape-Memory Alloy
Benchtop Demonstration of an Adaptive Chevron Completed Using a New High-Temperature Shape-Memory Alloy
Advanced Stirling Convertor Superalloy Heater Head Developed and Demonstrated
Long-Term Structural Benchmark Testing Started for Stirling Convertor Heater Heads
Materials Compatibility Evaluated for Advanced Heat Pipes in Space Power Thermal Management Systems
Reaction Zones Associated With Joining Ni-Based Superalloys to Refractory Metals Studied
Techniques Investigated to Join Advanced Materials for Future Space Exploration Missions
Simple Test Developed to Determine the Effectiveness of Different Braze Compositions for Joining Titanium Tubes to Carbon/Carbon Composite Plates
Thermochemistry for Chromia Volatility Determined by the Transpiration Technique
Proof of Concept (Design, Fabrication, and Testing) of a Novel High-Power-Density Solid Oxide Fuel Cell Established
Mechanical Properties of Solid Oxide Fuel Cell Seal Glass Enhanced by Boron Nitride Nanotubes
Flutter and Response Studied for a Mistuned Bladed Disk With Structural and Aerodynamic Coupling
Advanced Vibration Analysis Tools and New Strategies Developed for Robust Engine Rotor Development
Integral Damping Studied for Trailing Edge Blowing Fan
Turbine Structure Investigated for the Constant-Volume Combustion Cycle Engine
Probabilistic Creep Life Analysis of an Engine Combustor Composite Liner Performed
Stator and Rotor Designed and Manufactured for an Ironless High-Power-Density Permanent Magnet Electric Motor for Pollution-Free Aircraft Propulsion
Bearingless Motor Demonstrated
Novel Eight-Stator-Pole, Six-Rotor-Pole, Bearingless Switched-Reluctance Motor PerformanceCorrelated With Analysis
Performance of Switched-Reluctance Cryogenic Motor Tripled
Radial Forces Derived for a Switched-Reluctance Motor for Aerospace Applications
Vertical-Axis, Bearingless Switched-Reluctance Motor for All-Electric Propulsion SystemDemonstrated Successfully
Mission Analysis Conducted of a High-Altitude, Long-Endurance, Remotely Operated Aircraft With a High-Power-Density Electric Motor
Thioether Tested for the High-Temperature Vapor/Mist Phase Lubrication of Bearings and Gears
Influence of Speed and Load on High-Speed Helical Gear Trains Investigated
Damage Tolerance of Gears Demonstrated for Application to the Space Shuttle Rudder/Speed Brake Safety Assessment
Space Shuttle Power Drive Unit Gears Tested for Scuffing
Environmental Seals of the Space Shuttle Main Landing Gear Door Investigated
Tradeoffs of Various Concepts for Planetary Vehicle Drives Studied
Modeling of Nonmetallic Inclusions in Powder Metallurgy Alloys Improved
Design of an Airliner-Stabilizer Optimized Through Component Mode Synthesis
Multimechanism Viscoelastoplastic Model Used to Characterize and Predict High-TemperatureTIMETAL 21S Cyclic and Cyclic-Relaxation Deformation Behavior
Software Tool Developed to Integrate Probabilistic Structural Analysis With the Simulation of Manufacturing Processes
Progressive Failure Analysis Capability for Composite Stiffened Panels Developed
Hybrid Power Management Program Developed a Fuel-Cell-Powered Utility Vehicle
Versatile Modular Modeling Framework Completed and Validated for Multibody Mechanics
Acoustic Emission Verification Testing of Fluids and Combustion Facility Flight Racks Conducted atGlenn’s Acoustical Testing Laboratory
NASA Headquarters Program Offices
Programs and Projects
Index of Authors and Contacts
NASA Glenn Organizational Chart
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