| 1. | 19th Space Photovoltaic Research and Technology Conference |
| 2. | 2006 NASA Seal/Secondary Air System Workshop |
| 3. | A 1/10th Scale Model Test of a Fixed Chute Mixer-Ejector Nozzle in Unsuppressed Mode: Part I: Test Overview |
| 4. | A Comparison of Various Stress Rupture Life Models for Orbiter Composite Pressure Vessels and Confidence Intervals |
| 5. | A Database of Supercooled Large Droplet Ice Accretions |
| 6. | A Framework for Performing Multiscale Stochastic Progressive Failure Analysis of Composite Structures |
| 7. | A Historical Review of Brayton and Stirling Power Conversion Technologies for Space Applications |
| 8. | A Microfabricated Involute-Foil Regenerator for Stirling Engines |
| 9. | A Microfabricated Segmented-Involute-Foil Regenerator for Enhancing Reliability and Performance of Stirling Engines: Phase II Final Report for the Radioisotope Power Conversion Technology NRA Contract NAS3-03124 |
| 10. | A New High-Speed Oil-Free Turbine Engine Rotordynamic Simulator Test Rig |
| 11. | A Retro-Fit Control Architecture to Maintain Engine Performance With Usage |
| 12. | A Review of Tribomaterial Technology for Space Nuclear Power Systems |
| 13. | A Sequential Shifting Algorithm for Variable Rotor |
| 14. | A Synopsis of Interfacial Phenomena in Lithium-Based Polymer Electrolyte Electrochemical Cells |
| 15. | A Time-Accurate Upwind Unstructured Finite Volume Method for Compressible Flow With Cure of Pathological Behaviors |
| 16. | Adhesion of Lunar Dust |
| 17. | Advanced Stirling Convertor Testing at NASA Glenn Research Center |
| 18. | Advanced Stirling Technology Development at NASA Glenn Research Center |
| 19. | Advances in Scanning Reflectarray Antennas Based on Ferroelectric Thin Film Phase Shifters for Deep Space Communications |
| 20. | Aerosol Measurements of the Fine and Ultrafine Particle Content of Lunar Regolith |
| 21. | AEVA: Sensor Networks and Power Trade Study |
| 22. | An Analysis of Fuel Cell Options for an All-Electric Unmanned Aerial Vehicle |
| 23. | An Elongated Tetrakaidecahedron Model for Open-Celled Foams |
| 24. | An Evaluation of High Temperature Airframe Seals for Advanced Hypersonic Vehicles |
| 25. | An Introduction to Thermodynamic Performance Analysis of Aircraft Gas Turbine Engine Cycles Using the Numerical Propulsion System Simulation Code |
| 26. | Apparent Relations Between Solar Activity and Solar Tides Caused by the Planets |
| 27. | Application of Carbon Based Nano-materials to Aeronautics and Space Lubrication |
| 28. | Array Phase Shifters: Theory and Technology |
| 29. | Assessment of Creep Capability of HSR-EPM Turbine Airfoil Alloys |
| 30. | AST Critical Propulsion and Noise Technologies for Future Commercial Subsonic Engines: Low Emission Combustion for Regional Jet |
| 31. | Astronaut Risk Levels During Crew Module (CM) Land Landing |
| 32. | Benefits Derived From Laser Ranging Measurements for Orbit Determination of the GPS Satellite Orbit |
| 33. | Catalytic Ignition and Upstream Reaction Propagation in a Platinum Tube |
| 34. | Characterization of Lubricants on Ball Bearings by FT-IR Using an Integrating Sphere |
| 35. | Comparing the Robustness of High-Frequency Traveling-Wave Tube Slow-Wave Circuits |
| 36. | Comparison Between Simulated and Experimentally Measured Performance of a Four Port Wave Rotor |
| 37. | Comparison of GRCop-84 to Other High Thermal Conductive Cu Alloys |
| 38. | Comparison of the Atomic Oxygen Erosion Depth and Cone Height of Various Materials at Hyperthermal Energy |
| 39. | Compatibility Condition in Theory of Solid Mechanics (Elasticity, Structures, and Design Optimization) |
| 40. | Composite Nanomechanics: A Mechanistic Properties Prediction |
| 41. | Concepts for Distributed Engine Control |
| 42. | Crew Exploration Vehicle (CEV) Water Landing Simulation |
| 43. | Crew Exploration Vehicle Ascent Abort Trajectory Analysis and Optimization |
| 44. | Cryogenic Fluid Management Technologies for Advanced Green Propulsion Systems |
| 45. | Cryogenic Technology Development for Exploration Missions |
| 46. | Deployable Landing Leg Concept for Crew Exploration Vehicle |
| 47. | Design and Measurement of Self-Matched, Dual-Frequency Coplanar-Waveguide-Fed Slot Antennas |
| 48. | Design and Optimization of Composite Gyroscope Momentum Wheel Rings |
| 49. | Design of Oil-Lubricated Machine for Life and Reliability |
| 50. | Design, Fabrication and Performance of Open Source Generation I and II Compliant Hydrodynamic Gas Foil Bearings |
| 51. | Design, Fabrication, and Test of a LOX/LCH4RCS Igniter at NASA |
| 52. | Determination of the Shear Stress Distribution in a Laminate From the Applied Shear Resultant-A Simplified Shear Solution |
| 53. | Determination of Turboprop Reduction Gearbox System Fatigue Life and Reliability |
| 54. | Development and Application of a Portable Health Algorithms Test System |
| 55. | Development and Evaluation of TiAl Sheet Structures for Hypersonic Applications |
| 56. | Development of a Linear Stirling System Model With Varying Heat Inputs |
| 57. | Development of Advanced Stirling Radioisotope Generator for Space Exploration |
| 58. | Development of Oxidation Resistant Coatings on GRCop-84 Substrates by Cold Spray Process |
| 59. | Development of Probabilistic Structural Analysis Integrated With Manufacturing Processes |
| 60. | Development of Techniques to Investigate Sonoluminescence as a Source of Energy Harvesting |
| 61. | Developmental Considerations on the Free-Piston Stirling Power Convertor for Use in Space |
| 62. | Dilution-of-Precision-Based Lunar Surface Navigation System Analysis Utilizing Earth-Based Assets |
| 63. | Dilution-of-Precision-Based Lunar Surface Navigation System Analysis Utilizing Lunar Orbiters |
| 64. | Documentation and Control of Flow Separation on a Low Pressure Turbine Linear Cascade of Pak-B Blades Using Plasma Actuators |
| 65. | Effect of Temperature on Jet Velocity Spectra |
| 66. | Effective Training for Flight in Icing Conditions |
| 67. | Effects of Long Term Thermal Exposure on Chemically Pure (CP) Titanium Grade 2 Room Temperature Tensile Properties and Microstructure |
| 68. | Effects of Thermal Barrier Coatings on Approaches to Turbine Blade Cooling |
| 69. | Effects of Unsteadiness Due to Wake Passing on Rotor Blade Heat Transfer |
| 70. | Elevated Temperature Fatigue Endurance of Three Ceramic Matrix Composites |
| 71. | Energy Storage: Batteries and Fuel Cells for Exploration |
| 72. | Environmental/Thermal Barrier Coatings for Ceramic Matrix Composites: Thermal Tradeoff Studies |
| 73. | Evaluation and Testing of Commercially-Available Carbon Nanotubes as Negative Electrodes for Lithium Ion Cells |
| 74. | Evaluation of a Low-Noise Formate Spiral-Bevel Gear Set |
| 75. | Experimental Investigation of Rotating Stall in a Research Multistage Axial Compressor |
| 76. | Experimental Investigation of Transition to Turbulence as Affected by Passing Wakes: Effects of High FSTI and Increased Rod Spacing |
| 77. | Experimental Performance Evaluation of a High Speed Permanent Magnet Synchronous Motor and Drive for a Flywheel Application at Different Frequencies |
| 78. | Experimental Results of Performance Tests on a Four-Port Wave Rotor |
| 79. | Experimental Study of Transitional Flow Behavior in a Simulated Low Pressure |
| 80. | Failure Maps for Rectangular 17-4PH Stainless Steel Sandwiched Foam Panels |
| 81. | Feasibility Study of Vapor-Mist Phase Reaction Lubrication Using a Thioether Liquid |
| 82. | Feedback Control Systems Loop Shaping Design With Practical Considerations |
| 83. | Filling the Assurance Gap on Complex Electronics |
| 84. | Final Results for the GRC Supporting Technology Development Project for the 110-Watt Stirling Radioisotope Generator (SRG110) |
| 85. | Flame Radiation, Structure, and Scalar Properties in Microgravity Laminar Fires |
| 86. | Flight Testing an Iced Business Jet for Flight Simulation Model Validation |
| 87. | Fracture Strength of Single-Crystal Silicon Carbide Microspecimens at Room and Elevated Temperature |
| 88. | Fuel Cell Auxiliary Power Study: Volume 1: RASER Task Order 5 |
| 89. | Full-Scale System for Quantifying Leakage of Docking System Seals for Space Applications |
| 90. | Further Characterization of an Active Clearance Control Concept |
| 91. | Future Opportunities for Dynamic Power Systems for NASA Missions |
| 92. | Gas Foil Bearing Technology Advancements for Closed Brayton Cycle Turbines |
| 93. | Heat Transfer Analysis of a Closed Brayton Cycle Space Radiator |
| 94. | High Specific Power Motors in LN2 and LH2 |
| 95. | High-Capacity Communications From Martian Distances |
| 96. | High-Temperature Desulfurization of Heavy Fuel-Derived Reformate Gas Streams for SOFC Applications |
| 97. | Hybrid Power Management (HPM) |
| 98. | Hydrodynamic Force on a Cylinder Oscillating at Low Frequency |
| 99. | Hydrogen Generation Through Renewable Energy Sources at the NASA Glenn Research Center |
| 100. | Impact Testing on Reinforced Carbon-Carbon Flat Panels With BX-265 and PDL-1034 External Tank Foam for the Space Shuttle Return to Flight Program |
| 101. | Initial Test Results of a Dual Closed-Brayton-Cycle Power Conversion System |
| 102. | Integration of On-Line and Off-Line Diagnostic Algorithms for Aircraft Engine Health Management |
| 103. | Investigating Holey Metamaterial Effects in Terahertz Traveling-Wave Tube Amplifier |
| 104. | Investigation of Current Methods to Identify Helicopter Gear Health |
| 105. | Investigation of Low-Cycle Bending Fatigue of AISI 9310 Steel Spur Gears |
| 106. | Large and Small Droplet Impingement Data on Airfoils and Two Simulated Ice Shapes |
| 107. | Low Noise Cruise Efficient Short Take-Off and Landing Transport Vehicle Study |
| 108. | Lunar Dust on Heat Rejection System Surfaces: Problems and Prospects |
| 109. | Lunar Simulation in the Lunar Dust Adhesion Bell Jar |
| 110. | Lunar South Pole Illumination: Review, Reassessment, and Power System Implications |
| 111. | Lunar Surface-to-Surface Power Transfer |
| 112. | Mechanical Properties of 17-4PH Stainless Steel Foam Panels |
| 113. | Methane Hydrates: More Than a Viable Aviation Fuel Feedstock Option |
| 114. | Micro-Fabricated Solid-State Radiation Detectors for Active Personal Dosimetry |
| 115. | Minnowbrook I: 1993 Workshop on End-Stage Boundary Layer Transition |
| 116. | Model Specification for Rework of Aircraft Engine, Power Transmission, and Accessory/Auxiliary Ball and Roller Bearings |
| 117. | Modeling and Analysis of Space Based Transceivers |
| 118. | Modular, Cost-Effective, Extensible Avionics Architecture for Secure, Mobile Communications |
| 119. | NASA GRC Antenna Elements for the TDRSS Enhanced Multiple Access System |
| 120. | NASA's Advanced Radioisotope Power Conversion Technology Development Status |
| 121. | NASA's Evolutionary Xenon Thruster (NEXT) Ion Propulsion System Prototype Model (PM) Thermal Model |
| 122. | NASA's Evolutionary Xenon Thruster (NEXT) Ion Propulsion System--Service Life Assessment |
| 123. | Near Field Radiation Characteristics of Implantable Square Spiral Chip Inductor Antennas for Bio-Sensors |
| 124. | NEXT Thruster Component Verification Testing |
| 125. | NIRSS Upgrades: Final Report |
| 126. | Noise Benefits of Rotor Trailing Edge Blowing for a Model Turbofan |
| 127. | Noise Generation in Hot Jets |
| 128. | Noise Reduction Technologies for Turbofan Engines |
| 129. | Notch Fatigue Strength of a PM Disk Superalloy |
| 130. | Numerical Technique for Analyzing Rotating Rake Mode Measurements in a Duct With Passive Treatment and Shear Flow |
| 131. | Observations on the Growth of Roughness Elements Into Icing Feathers |
| 132. | Offset Stream Technology Test--Summary of Results |
| 133. | Oil-Free Rotor Support Technologies for an Optimized Helicopter Propulsion System |
| 134. | Operational Condition and Superfinishing Effect on High-Speed Helical Gearing System Performance |
| 135. | Operational Results From a High Power Alternator Test Bed |
| 136. | Orbit Determination Analysis Utilizing Radiometric and Laser Ranging Measurements for GPS Orbit |
| 137. | Oxidation Kinetics of a NiPtTi High Temperature Shape Memory Alloy |
| 138. | Oxidation Through Coating Cracks of SiC-Protected Carbon/Carbon |
| 139. | Passive Endwall Treatments for Enhancing Stability |
| 140. | Path Loss Prediction Over the Lunar Surface Utilizing a Modified Longley-Rice Irregular Terrain Model |
| 141. | Performance and Comparison of Lithium-Ion Batteries Under Low-Earth-Orbit Mission Profiles |
| 142. | Performance of the NEXT Engineering Model Power Processing Unit |
| 143. | Physical Laws for Mechanobiology |
| 144. | Pitting and Bending Fatigue Evaluations of a New Case-Carburized Gear Steel |
| 145. | Polymethylmethacrylate (PMMA) Material Test Results for the Capillary Flow Experiments (CFE) |
| 146. | Preliminary Assessment of Turbomachinery Codes |
| 147. | Preliminary Structural Sizing and Alternative Material Trade Study of CEV Crew Module |
| 148. | Probabilistic Methods for Structure Reliability and Risk |
| 149. | Probabilistic Simulation for Nanocomposite Characterization |
| 150. | Progress Toward Improving Jet Noise Predictions in Hot Jets |
| 151. | Progressive Fracture of Laminated Composite Stiffened Plate |
| 152. | Propulsion Controls and Diagnostics Research at NASA Glenn Research Center |
| 153. | Propulsion Health Management System Development for Affordable and Reliable Operation of Space Exploration Systems |
| 154. | Pyrolysis of Large Black Liquor Droplets |
| 155. | Radio Frequency Mass Gauging of Propellants |
| 156. | RDS-21 Face-Gear Surface Durability Tests |
| 157. | Reexamination of Ball-Race Conformity Effects on Ball Bearing Life |
| 158. | Reinforced Carbon-Carbon Subcomponent Flat Plate Impact Testing for Space Shuttle Orbiter Return to Flight |
| 159. | Reliability and Creep/Fatigue Analysis of a CMC Component |
| 160. | Resilient Propulsion Control Research for the NASA Integrated Resilient Aircraft Control (IRAC) Project |
| 161. | RF and Optical Communications: A Comparison of High Data Rate Returns From Deep Space in the 2020 Timeframe |
| 162. | RF Performance of Membrane Aperture Shells |
| 163. | Robust Low-Cost Cathode for Commercial Applications |
| 164. | Secure, Autonomous, Intelligent Controller for Integrating Distributed Sensor Webs |
| 165. | Sensor Selection and Optimization for Health Assessment of Aerospace Systems |
| 166. | Shear History Extensional Rheology Experiment: A Proposed ISS Experiment |
| 167. | Shock Characteristics Measured Upstream of Both a Forward-Swept and an Aft-Swept Fan |
| 168. | Solid Lubricants and Coatings for Extreme Environments: State-of-the-Art Survey |
| 169. | Space Telecommunications Radio System (STRS) Architecture Goals/Objectives and Level 1 Requirements |
| 170. | Spherical Cryogenic Hydrogen Tank Preliminary Design Trade Studies |
| 171. | SRG110 Stirling Generator Dynamic Simulator Vibration Test Results and Analysis Correlation |
| 172. | Stability Analysis of a High-Speed Seal Test Rotor With Marginal and Extended Squeeze-Film Dampers--Theoretical and Experimental Results |
| 173. | Status of the NASA Stirling Radioisotope Project |
| 174. | Stirling Isotope Power Systems for Stationary and Mobile Lunar Applications |
| 175. | Strategic Adaptation of SCA for STRS |
| 176. | Stress Rupture Life Reliability Measures for Composite Overwrapped Pressure Vessels |
| 177. | Structural Benchmark Testing for Stirling Convertor Heater Heads |
| 178. | The Attenuation of a Detonation Wave by an Aircraft Engine Axial Turbine Stage |
| 179. | The Effect of Variable End of Charge Battery Management on Small-Cell Batteries |
| 180. | The Effects of Lunar Dust on EVA Systems During the Apollo Missions |
| 181. | The Grain Size-Temperature Response of Advanced Nickel-Base Disk Superalloys During Solution Heat Treatments |
| 182. | The NASA “PERS” Program: Solid Polymer Electrolyte Development for Advanced Lithium-Based Batteries |
| 183. | The Potential Benefits of Advanced Casing Treatment for Noise Attenuation in Ultra-High Bypass Ratio Turbofan Engines |
| 184. | Thermal Analysis on Cryogenic Liquid Hydrogen Tank on an Unmanned Aerial Vehicle System |
| 185. | Thermal Analysis on Plume Heating of the Main Engine on the Crew Exploration Vehicle Service Module |
| 186. | Thermal Performance of High Temperature Titanium—Water Heat Pipes by Multiple Heat Pipe Manufacturers |
| 187. | Thermal Properties of Oxides With Magnetoplumbite Structure for Advanced Thermal Barrier Coating |
| 188. | Three-Dimensional Digital Image Correlation of a Composite Overwrapped Pressure Vessel During Hydrostatic Pressure Tests |
| 189. | Toward a Real-Time Measurement-Based System for Estimation of Helicopter Engine Degradation Due to Compressor Erosion |
| 190. | Towards Autonomous Inspection of Space Systems Using Mobile Robotic Sensor Platforms |
| 191. | Tribological Performance of PM300 Solid Lubricant Bushings for High Temperature Applications |
| 192. | Ultra-Lightweight Hybrid Thin-Film Solar Cells: A Survey of Enabling Technologies for Space Power Applications |
| 193. | Unsteady Turbine Blade and Tip Heat Transfer Due to Wake Passing |
| 194. | Unsteady Velocity Measurements in the NASA Research Low Speed Axial Compressor: Smooth Wall Configuration |
| 195. | Use of Atomic Oxygen for Increased Water Contact Angles of Various Polymers for Biomedical Applications |
| 196. | Use of Plasma Actuators as a Moving-Wake Generator |
| 197. | User’s Guide for the Commercial Modular Aero-Propulsion System Simulation (C-MAPSS) |
| 198. | Vibration Transmission Through Bearings With Application to Gearboxes |
| 199. | Water Droplet Impingement on Simulated Glaze, Mixed, and Rime Ice Accretions |
| 200. | Water Injection-Could it Reduce Airplane Maintenance Costs and Airport Emissions? |
| 201. | Wear Behavior of Low-Cost, Lightweight TiC/Ti-6Al-4V Composite Under Fretting: Effectiveness of Solid-Film Lubricant Counterparts |
| 202. | Wear of Spur Gears Having a Dithering Motion and Lubricated With a Perfluorinated Polyether Grease |
| 203. | Wireless Channel Characterization in the 5 GHz Microwave Landing System Extension Band for Airport Surface Areas |