| 1. | 2006 Icing Cloud Calibration of the NASA Glenn Icing Research Tunnel |
| 2. | 2007 NASA Seal/Secondary Air System Workshop |
| 3. | A Cryogenic High-Power-Density Bearingless Motor for Future Electric Propulsion |
| 4. | A Globally Optimal Particle Tracking Technique for Stereo Imaging Velocimetry Experiments |
| 5. | A Modeling Technique and Representation of Failure in the Analysis of Triaxial Braided Carbon Fiber Composites |
| 6. | A Modular Aero-Propulsion System Simulation of a Large Commercial Aircraft Engine |
| 7. | A Novel Multiscale Physics Based Progressive Failure Methodology for Laminated Composite Structures |
| 8. | A Numerical Study of Anti-Vortex Film Cooling Designs at High Blowing Ratio |
| 9. | A Review of Engine Seal Performance and Requirements for Current and Future Army Engine Platforms |
| 10. | A Step Towards CO2-Neutral Aviation |
| 11. | A Stereo Imaging Velocimetry Technique for Analyzing Structure of Flame Balls at Low Lewis-Number (SOFBALL) Data |
| 12. | A Successful Infusion Process for Enabling Lunar Exploration Technologies |
| 13. | A Temperature Sensor Using a Silicon-on-Insulator (SOI) Timer for Very Wide Temperature Measurement |
| 14. | Adaptation and Re-Use of Spacecraft Power System Models for the Constellation Program |
| 15. | Additional Technologies and Investigations for Provision of Future Aeronautical Communications |
| 16. | Adhesion of Silicone Elastomer Seals for NASA’s Crew Exploration Vehicle |
| 17. | Adsorption of Water on Simulated Moon Dust Samples |
| 18. | Advanced Chemical Propulsion for Science Missions |
| 19. | Advanced Stirling Convertor (ASC)-From Technology Development to Future Flight Product |
| 20. | Advanced Stirling Convertor Heater Head Durability and Reliability Quantification |
| 21. | Aerodynamic Design of a Dual-Flow Mach 7 Hypersonic Inlet System for a Turbine-Based Combined-Cycle Hypersonic Propulsion System |
| 22. | Air Flow and Pressure Drop Measurements |
| 23. | Aircraft Engine On-Line Diagnostics Through Dual-Channel Sensor Measurements: Development of a Baseline System |
| 24. | Aircraft Engine On-Line Diagnostics Through Dual-Channel Sensor Measurements: Development of an Enhanced System |
| 25. | Airfoil Ice-Accretion Aerodynamics Simulation |
| 26. | Alternate Fuels for Use in Commercial Aircraft |
| 27. | An Active Damping at Blade Resonances Using Piezoelectric Transducers |
| 28. | An Adaptive Instability Suppression Controls Method for Aircraft Gas Turbine Engine Combustors |
| 29. | An Assessment of Current Fan Noise Prediction Capability |
| 30. | An Idealized, Single Radial Swirler, Lean-Direct-Injection (LDI) Concept Meshing Script |
| 31. | An Investigation of Noise Reduction for the 3BB Nozzle With a Pylon Using External Flaps |
| 32. | Analysis of Bonded Joints Between the Facesheet and Flange of Corrugated Composite Panels |
| 33. | Analysis of Plume Effects on Sonic Boom Signature for Isolated Nozzle Configurations |
| 34. | Application of Ruze Equation for Inflatable Aperture Antennas |
| 35. | Application of Synthetic Jets to Reduce Stator Flow Separation in a Low Speed Axial Compressor |
| 36. | Application of the Systematic Sensor Selection Strategy for Turbofan Engine Diagnostics |
| 37. | Assessment of Current Jet Noise Prediction Capabilities |
| 38. | Assessment of Microphysical Models in the National Combustion Code (NCC) for Aircraft Particulate Emissions: Particle Loss in Sampling Lines |
| 39. | Assessment of the Partially Resolved Numerical Simulation (PRNS) Approach in the National Combustion Code (NCC) for Turbulent Nonreacting and Reacting Flows |
| 40. | Assuring Life in Composite Systems |
| 41. | Astable Oscillator Circuits Using Silicon-on-Insulator Timer Chip for Wide Range Temperature Sensing |
| 42. | Atomic Oxygen Erosion Yield Predictive Tool for Spacecraft Polymers in Low Earth Orbit |
| 43. | Automated Power Assessment for Helicopter Turboshaft Engines |
| 44. | Benchmarking Gas Path Diagnostic Methods: A Public Approach |
| 45. | Boiling Experiment Facility for Heat Transfer Studies in Microgravity |
| 46. | Centrifugal and Axial Pump Flow Code--PUMPA: User's Manual |
| 47. | CFD Analyses and Jet-Noise Predictions of Chevron Nozzles With Vortex Stabilization |
| 48. | CFD Modeling of Superheated Fuel Sprays |
| 49. | CFD Results for an Axisymmetric Isentropic Relaxed Compression Inlet |
| 50. | Channel Temperature Determination for AlGaN/GaN HEMTs on SiC and Sapphire |
| 51. | Characteristics of Elastomer Seals Exposed to Space Environments |
| 52. | Characterization and Simulation of the Thermoacoustic Instability Behavior of an Advanced, Low Emissions Combustor Prototype |
| 53. | Characterization of Lunar Polar Illumination From a Power System Perspective |
| 54. | Closed-Cycle Hydrogen-Oxygen Regenerative Fuel Cell at the NASA Glenn Research Center--An Update |
| 55. | Communication Needs Assessment for Distributed Turbine Engine Control |
| 56. | Comparison Between Numerically Simulated and Experimentally Measured Flowfield Quantities Behind a Pulsejet |
| 57. | Comparison of Far-Field Noise for Three Significantly Different Model Turbofans |
| 58. | Comparison of LEWICE and GlennICE in the SLD Regime |
| 59. | Comparison of Nonlinear Filtering Techniques for Lunar Surface Roving Navigation |
| 60. | Comparison of the Isothermal Oxidation Behavior of As-Cast Cu-17%Cr and Cu-17%Cr-5%Al : Part II: Scale Microstructures |
| 61. | Comparison of the Isothermal Oxidation Behavior of As-Cast Cu-17%Cr and Cu-17%Cr-5%Al: Part I: Oxidation Kinetics |
| 62. | Compliant Foil Journal Bearing Performance at Alternate Pressures and Temperatures |
| 63. | COMSOL Multiphysics Modeling Software: Use and Comparative Performance in Determining and Comparative Performance in Determining Dispersion and Interaction Impedance in Coupled-Cavity and Folded-Waveguide Slow-Wave Circuits |
| 64. | Concepts for Variable/Multi-Speed Rotorcraft Drive System |
| 65. | Continued Development of the Advanced Stirling Convertor (ASC) |
| 66. | Cryogenic Fluid Transfer for Exploration |
| 67. | Current Methods for Modeling and Simulating Icing Effects on Aircraft Performance, Stability and Control |
| 68. | Data Optical Networking Architecture Using Wavelength-Division Multiplexing Method for Optical Sensors |
| 69. | Demonstration of Active Combustion Control |
| 70. | Design Guidelines for Quiet Fans and Pumps for Space Vehicles |
| 71. | Design of a Model Execution Framework: Repetitive Object-Oriented Simulation Environment (ROSE) |
| 72. | Design, Fabrication, and Performance of Foil Gas Thrust Bearings for Microturbomachinery Applications |
| 73. | Development and Buildup of a Stirling Radiosotope Generator Electrical Simulator |
| 74. | Development of a Power Electronics Controller for the Advanced Stirling Radioisotope Generator |
| 75. | Development of a Temperature Sensor for Jet Engine and Space Missions Environments |
| 76. | Effect of Adding a Regenerator to Kornhauser's MIT "Two-Space" (Gas-Spring+Heat Exchanger) Test Rig |
| 77. | Effect of Orion Post-Touchdown Parachute Release Time on Vehicle Rollover |
| 78. | Effects of a Rotating Aerodynamic Probe on the Flow Field of a Compressor Rotor |
| 79. | Effects of High-Temperature Annealing in Air on Hi-Nicalon Fiber-Reinforced Celsian Matrix Composites |
| 80. | Effects of Palladium Content, Quaternary Alloying, and Thermomechanical Processing on the Behavior of Ni-Ti-Pd Shape Memory Alloys for Actuator Applications |
| 81. | Electromagnetic Forces in a Hybrid Magnetic-Bearing Switched-Reluctance Motor |
| 82. | Engine Validation of Noise and Emission Reduction Technology Phase I |
| 83. | Enhanced Self Tuning On-Board Real-Time Model (eSTORM) for Aircraft Engine Performance Health Tracking |
| 84. | Enigmatic Moisture Effects on Al2O3 Scale and TBC Adhesion |
| 85. | Environmental Testing of the NEXT PM1 Ion Engine |
| 86. | Environmental Testing of the NEXT PM1R Ion Engine |
| 87. | Estimation of the Unsteady Aerodynamic Load on Space Shuttle External Tank Protuberances From a Component Wind Tunnel Test |
| 88. | Evaluation of a Seat Attenuation System for the Orion Crew Module |
| 89. | Evaluation of Separation Mechanism Design for the Orion/Ares Launch Vehicle |
| 90. | Evaluation of Silicon Nitride for Brayton Turbine Wheel Application |
| 91. | Experimental Investigation of Elastomer Docking Seal Compression Set, Adhesion, and Leakage |
| 92. | Experimentation for the Maturation of Deep Space Cryogenic Refueling Technologies |
| 93. | Fatigue Behavior of a Third Generation PM Disk Superalloy |
| 94. | Fatigue Crack Growth Behavior Evaluation of Grainex Mar-M 247 for NASA’s High Temperature, High Speed Turbine Seal Test Rig |
| 95. | Foam-Metal Liner Attenuation of Low-Speed Fan Noise |
| 96. | Fuel Cell Thermal Management Through Conductive Cooling Plates |
| 97. | Full-Field Strain Methods for Investigating Failure Mechanisms in Triaxial Braided Composites |
| 98. | Future Aeronautical Communication Infrastructure Technology Investigation |
| 99. | Gas Foil Bearing Misalignment and Unbalance Effects |
| 100. | Gelation in Aerosols: Non-Mean-Field Aggregation and Kinetics |
| 101. | Geometric Modeling of Inclusions as Ellipsoids |
| 102. | GRC Supporting Technology for NASA's Advanced Stirling Radioisotope Generator (ASRG) |
| 103. | GRCop-84 Rolling Parameter Study |
| 104. | Halbach Magnetic Rotor Development |
| 105. | Hardware Architecture Study for NASA’s Space Software Defined Radios |
| 106. | Heat Transfer in a Superelliptic Transition Duct |
| 107. | Heat Transfer in Conical Corner and Short Superelliptical Transition Ducts |
| 108. | Heat Transfer Measurements for a Film Cooled Turbine Vane Cascade |
| 109. | High Conductivity Carbon-Carbon Heat Pipes for Light Weight Space Power System Radiators |
| 110. | High Power and Efficiency Space Traveling-Wave Tube Amplifiers With Reduced Size and Mass for NASA Missions |
| 111. | High Speed Solution of Spacecraft Trajectory Problems Using Taylor Series Integration |
| 112. | Hydrogen Research for Spaceport and Space-Based Applications: Fuel Cell Projects |
| 113. | Hydrogen Research for Spaceport and Space-Based Applications: Hydrogen Sensors and Systems |
| 114. | Hydrogen Research for Spaceport and Space-Based Applications: Hydrogen Production, Storage, and Transport |
| 115. | Ice Shape Scaling for Aircraft in SLD Conditions |
| 116. | IceVal DatAssistant--An Interactive, Automated Icing Data Management System |
| 117. | Identifying Bearing Rotordynamic Coefficients Using an Extended Kalman Filter |
| 118. | Impact Resistance of EBC Coated SiC/SiC Composites |
| 119. | Implementation and Validation of a Laminar-to-Turbulent Transition Model in the Wind-US Code |
| 120. | Implementation Challenges for Multivariable Control: What You Did Not Learn in School! |
| 121. | Initial Assessment of the Ares I-X Launch Vehicle Upper Stage to Vibroacoustic Flight Environments |
| 122. | Initial Noise Assessment of an Embedded-Wing-Propulsion Concept Vehicle |
| 123. | Intelligent Engine Systems: Smart Case System |
| 124. | Intelligent Engine Systems: Acoustics |
| 125. | Intelligent Engine Systems: HPT Clearance Control |
| 126. | Intelligent Engine Systems: Bearing System |
| 127. | Intelligent Engine Systems: Thermal Management and Advanced Cooling |
| 128. | Intelligent Engine Systems: Alternate Fuels Evaluation |
| 129. | Intelligent Engine Systems: Adaptive Control |
| 130. | Intelligent Engine Systems: Thermal Management and Advanced Cooling |
| 131. | Intelligent Propulsion System Foundation Technology: Summary of Research |
| 132. | Intravenous Fluid Mixing in Normal Gravity, Partial Gravity, and Microgravity: Down-Selection of Mixing Methods |
| 133. | Investigating Dielectric and Metamaterial Effects in a Terahertz Traveling-Wave Tube Amplifier |
| 134. | Investigation of Flow Instabilities in the Inlet Ducts of DP-1C VTOL Aircraft |
| 135. | IPv6 and IPsec Tests of a Space-Based Asset, the Cisco Router in Low Earth Orbit (CLEO) |
| 136. | K-Band TWTA for the NASA Lunar Reconnaissance Orbiter |
| 137. | Lessons Learned From Atomic Oxygen Interaction With Spacecraft Materials in Low Earth Orbit |
| 138. | Liquid Space Lubricants Examined by Vibrational Micro-Spectroscopy |
| 139. | Long-Range Transhorizon Lunar Surface Radio Wave Propagation in the Presence of a Regolith and a Sparse Exospheric Plasma |
| 140. | Low Cost Electric Propulsion Thruster for Deep Space Robotic Science Missions |
| 141. | Low Frequency Noise Contamination in Fan Model Testing |
| 142. | LOX/Methane Main Engine Igniter Tests and Modeling |
| 143. | LSPRAY-III: A Lagrangian Spray Module |
| 144. | Lunar Dust Chemical, Electrical, and Mechanical Reactivity: Simulation and Characterization |
| 145. | Lunar Polar Illumination for Power Analysis |
| 146. | Medical Grade Water Generation for Intravenous Fluid Production on Exploration Missions |
| 147. | Microgravity Flame Spread in Exploration Atmospheres: Pressure, Oxygen, and Velocity Effects on Opposed and Concurrent Flame Spread |
| 148. | Microstructure Modeling of 3rd Generation Disk Alloys |
| 149. | Misalignment in Gas Foil Journal Bearings: An Experimental Study |
| 150. | Mixing of Multiple Jets With a Confined Subsonic Crossflow Part III--The Effects of Air Preheat and Number of Orifices on Flow and Emissions in an RQL Mixing Section |
| 151. | Model-Based Fault Tolerant Control |
| 152. | Modeling of Fixed-Exit Porous Bleed Systems |
| 153. | Models of Lift and Drag Coefficients of Stalled and Unstalled Airfoils in Wind Tunnels and Wind Turbines |
| 154. | Moisture-Induced Delamination Video of an Oxidized Thermal Barrier Coating |
| 155. | NASA and Superalloys: A Customer, a Participant, and a Referee |
| 156. | NASA Glenn High Pressure Low NOx Emissions Research |
| 157. | NASA Glenn Research Center's Materials International Space Station Experiments (MISSE 1-7) |
| 158. | NASALIFE--Component Fatigue and Creep Life Prediction Program |
| 159. | NASA's PEM Fuel Cell Power Plant Development Program for Space Applications |
| 160. | Near-Field Noise Computation for a Subsonic Coannular Jet |
| 161. | NEXT Ion Propulsion System Development Status and Capabilities |
| 162. | NEXT Ion Propulsion System Development Status and Performance |
| 163. | NEXT Ion Thruster Performance Dispersion Analyses |
| 164. | Novel Carbon Dioxide Microsensor Based on Tin Oxide Nanomaterial Doped With Copper Oxide |
| 165. | Numerical Investigation of LO2 and LCH4 Storage Tanks on the Lunar Surface |
| 166. | Open Architecture Standard for NASA’s Software-Defined Space Telecommunications Radio Systems |
| 167. | Operability of an Ejector Enhanced Pulse Combustor in a Gas Turbine Environment |
| 168. | Optical Properties of Thermal Control Coatings After Weathering, Simulated Ascent Heating, and Simulated Space Radiation Exposure |
| 169. | Orion Crew Member Injury Predictions During Land and Water Landings |
| 170. | Overview of Multi-Kilowatt Free-Piston Stirling Power Conversion Research at Glenn Research Center |
| 171. | Parameter Analysis of Lunar Surface Navigation Utilizing Dilution-of-Precision Methodology With Lunar Orbiters |
| 172. | Performance Evaluation of the Prototype Model NEXT Ion Thruster |
| 173. | Performance of Subscale Docking Seals Under Simulated Temperature Conditions |
| 174. | Permanent Magnetic Bearing for Spacecraft Applications |
| 175. | Post Test Evaluation of HSCT Nozzle Acoustic Liner Subcomponents Subjected to a Hot Acoustic Durability Test |
| 176. | Power System Trade Studies for the Lunar Surface Access Module |
| 177. | Preliminary Analysis for an Optimized Oil-Free Rotorcraft Engine Concept |
| 178. | Preliminary Test Results of a Non-Contacting Finger Seal on a Herringbone-Grooved Rotor |
| 179. | Pre-Stall Behavior of a Transonic Axial Compressor Stage Via Time-Accurate Numerical Simulation |
| 180. | Probabilistic Analysis of Space Shuttle Body Flap Actuator Ball Bearings |
| 181. | Probabilistic Multi-Factor Interaction Model for Complex Material Behavior |
| 182. | Probabilistic Usage of the Multi-Factor Interaction Model |
| 183. | Problems With Deployment of Multi-Domained, Multi-Homed Mobile Networks |
| 184. | Process for Assessing NASA's Capability in Aircraft Noise Prediction Technology |
| 185. | Processing and Preparation of Advanced Stirling Convertors for Extended Operation at NASA Glenn Research Center |
| 186. | Progress of Ongoing NASA Lithium-Ion Cell Verification Testing for Aerospace Applications |
| 187. | Propellant Mass Gauging: Database of Vehicle Applications and Research and Development Studies |
| 188. | Quiet Cruise Efficient Short Take-Off and Landing Subsonic Transport System |
| 189. | Radioisotope Reduction Using Solar Power for Outer Planetary Missions |
| 190. | Regionalized Lunar South Pole Surface Navigation System Analysis |
| 191. | Relation Between Hertz-Life Exponent, Ball-Race Conformity, and Ball Bearing Life |
| 192. | Reliability Assessment of Graphite Specimens Under Multiaxial Stresses |
| 193. | Research & Technology 2007 |
| 194. | Review of End-of-Life Thermal Control Coating Performance |
| 195. | RF MEMS Switches With SiC Microbridges for Improved Reliability |
| 196. | Scalability of Localized Arc Filament Plasma Actuators |
| 197. | Seal Technology Development for Advanced Component for Airbreathing Engines |
| 198. | Seven Key Principles of Program and Project Success: A Best Practices Survey |
| 199. | Shear Modulus for Nonisotropic, Open-Celled Foams Using a General Elongated Kelvin Foam Model |
| 200. | Signal Detection Theory Applied to Helicopter Transmission Diagnostic Thresholds |
| 201. | Simultaneous Noncontact Precision Imaging of Microstructural and Thickness Variation in Dielectric Materials Using Terahertz Energy |
| 202. | SmaggIce 2.0: Additional Capabilities for Interactive Grid Generation of Iced Airoils |
| 203. | Space Telecommunications Radio System (STRS) Definitions and Acronyms |
| 204. | Space Telecommunications Radio System (STRS) Hardware Architecture Standard: Release 1.0 Hardware Section |
| 205. | Space Telecommunications Radio System Software Architecture Concepts and Analysis |
| 206. | Spectral Separation of the Turbofan Engine Coherent Combustion Noise Component |
| 207. | Spray Chemical Vapor Deposition of Single-Source Precursors for Chalcopyrite I-III-VI2Thin-Film Materials |
| 208. | Status of the NEXT Ion Thruster Long-Duration Test After 10,100 hr and 207 kg Demonstrated |
| 209. | Stirling System Modeling for Space Nuclear Power Systems |
| 210. | Strength, Fatigue, and Fracture Toughness of Ti-6Al-4V Liner From a Composite Over-Wrapped Pressure Vessel |
| 211. | Stress Analysis and Fracture in Nanolaminate Composites |
| 212. | STRS Compliant FPGA Waveform Development |
| 213. | Structural Benchmark Creep Testing for the Advanced Stirling Convertor Heater Head |
| 214. | Structural Dynamic Analysis of a Spacecraft Multi-DOF Shaker Table |
| 215. | System Concepts for Affordable Fission Surface Power |
| 216. | System Study: Technology Assessment and Prioritizing Update |
| 217. | System Study for Axial Vane Engine Technology |
| 218. | Test Results From a Simulated High-Voltage Lunar Power Transmission Line |
| 219. | The a(3) Scheme--A Fourth-Order Space-Time Flux-Conserving and Neutrally Stable CESE Solver |
| 220. | The Effect of Reaction Control System Thruster Plume Impingement on Orion Service Module Solar Array Power Production |
| 221. | The Effect of Simulated Lunar Dust on the Absorptivity, Emissivity, and Operating Temperature on AZ-93 and Ag/FEP Thermal Control Surfaces |
| 222. | The Effect of Spray Initial Conditions on Heat Release and Emissions in LDI CFD Calculations |
| 223. | The General Aviation Propulsion (GAP) Program |
| 224. | The Need for High Fidelity Lunar Regolith Simulants |
| 225. | The Use of a Vehicle Acceleration Exposure Limit Model and a Finite Element Crash Test Dummy Model to Evaluate the Risk of Injuries During Orion Crew Module Landings |
| 226. | Thermal and Environmental Barrier Coating Development for Advanced Propulsion Engine Systems |
| 227. | Thermal Barrier and Protective Coatings to Improve the Durability of a Combustor Under a Pulse Detonation Engine Environment |
| 228. | Thin Film Ceramic Strain Sensor Development for High Temperature Environments |
| 229. | Transient Thermal Model and Analysis of the Lunar Surface and Regolith for Cryogenic Fluid Storage |
| 230. | Turbulence Associated With Broadband Shock Noise in Hot Jets |
| 231. | Unmanned Aircraft System Control and ATC Communications Bandwidth Requirements |
| 232. | Unsteady Analysis of Blade and Tip Heat Transfer as Influenced by the Upstream Momentum and Thermal Wakes |
| 233. | Updates to the NASA Space Telecommunications Radio System (STRS) Architecture |
| 234. | User's Manual for LEWICE Version 3.2 |
| 235. | Using COMSOL Multiphysics Software to Model Anisotropic Dielectric and Metamaterial Effects in Folded-Waveguide Traveling-Wave Tube Slow-Wave Circuits |
| 236. | Vibration Analysis of the Space Shuttle External Tank Cable Tray Flight Data With and Without PAL Ramp |
| 237. | Vibroacoustic Response of the NASA ACTS Spacecraft Antenna to Launch Acoustic Excitation |
| 238. | Volume Dynamics Propulsion System Modeling for Supersonics Vehicle Research |
| 239. | Wave Propagation Through Inhomogeneities With Applications to Novel Sensing Techniques |