| 1. | 2005 NASA Seal/Secondary Air System Workshop |
| 2. | A Bearingless Switched-Reluctance Motor for High Specific Power Applications |
| 3. | A Compact, Broadband Antenna for Planetary Surface-to-Surface Wireless Communications |
| 4. | A Comparison of Coolant Options for Brayton Power Conversion Heat Rejection Systems |
| 5. | A Comparison of Fission Power System Options for Lunar and Mars Surface Applications |
| 6. | A Current Source Method For tq Measurement of Fast Switching Thyristors |
| 7. | A Method for Calculating Viscosity and Thermal Conductivity of a Helium-Xenon Gas Mixture |
| 8. | A Novel, Free-Space Optical Interconnect Employing Vertical-Cavity Surface Emitting Laser Diodes and InGaAs Metal-Semiconductor-Metal Photodetectors for Gbit/s RF/Microwave Systems |
| 9. | A Practical Approach to Starting Fission Surface Power Development |
| 10. | A Preliminary Foil Gas Bearing Performance Map |
| 11. | A Resonant Synchronous Vibration Based Approach for Rotor Imbalance Detection |
| 12. | A Theoretical Solid Oxide Fuel Cell Model for System Controls and Stability Design |
| 13. | A Three-Dimensional Unsteady CFD Model of Compressor Stability |
| 14. | Accelerated Life Structural Benchmark Testing for a Stirling Convertor Heater Head |
| 15. | Acoustic Characteristics of Various Treatment Panel Designs for HSCT Ejector Liner Acoustic Technology Development Program |
| 16. | Acoustic Characteristics of Various Treatment Panel Designs Specific to HSCT Mixer-Ejector Application |
| 17. | Acoustic Efficiency of Azimuthal Modes in Jet Noise Using Chevron Nozzles |
| 18. | Adaptive Engine Technologies for Aviation CO2 Emissions Reduction |
| 19. | Additional Investigations of Ice Shape Sensitivity to Parameter Variations |
| 20. | Advanced Polymers Containing the Phenyltrifluoroethylidene Connecting Group |
| 21. | Advances in Engine Test Capabilities at the NASA Glenn Research Center's Propulsion Systems Laboratory |
| 22. | Aerodynamic Performance Measurements for a Forward Swept Low Noise Fan |
| 23. | Aerosol-Assisted Chemical Vapor Deposited Thin Films for Space Photovoltaics |
| 24. | Aircraft Particle Emissions eXperiment (APEX) |
| 25. | Aligned and Unaligned Coherence: A New Diagnostic Tool |
| 26. | Alternative Fuels and Their Potential Impact on Aviation |
| 27. | An Analysis of Nondestructive Evaluation Techniques for Polymer Matrix Composite Sandwich Materials |
| 28. | An Assessment of NASA Glenn's Aeroacoustic Experimental and Predictive Capabilities for Installed Cooling Fans: Part 1: Aerodynamic Performance |
| 29. | An Assessment of NASA Glenn's Aeroacoustic Experimental and Predictive Capabilities for Installed Cooling Fans : Part 2: Source Identification and Validation |
| 30. | An Automated Classification Technique for Detecting Defects in Battery Cells |
| 31. | An Initial Non-Equilibrium Porous-Media Model for CFD Simulation of Stirling Regenerators |
| 32. | Apollo Seals: A Basis for the Crew Exploration Vehicle Seals |
| 33. | Application of Composite Mechanics to Composites Enhanced Concrete Structures |
| 34. | Application of the Bootstrap Statistical Method in Deriving Vibroacoustic Specifications |
| 35. | Assessments of Fracture Toughness of Monolithic Ceramics--SEPB Versus SEVNB Methods |
| 36. | Assessments of Mechanical and Life Limiting Properties of Two Candidate Silicon Nitrides for Stirling Convertor Heater Head Applications |
| 37. | Assisting Public Organizations in Their Outsourcing Endeavors: A Decision Support Model |
| 38. | AST Critical Propulsion and Noise Reduction Technologies for Future Commercial Subsonic Engines: Area of Interest 1.0: Reliable and Affordable Control Systems |
| 39. | Atmospheric Mining in the Outer Solar System |
| 40. | Autonomous Civil Aircraft-Are They the Future of Aviation? |
| 41. | Autonomous Navigation Error Propagation Assessment for Lunar Surface Mobility Applications |
| 42. | Bench-Scale Monolith Autothermal Reformer Catalyst Screening Evaluations in a Micro-Reactor With Jet-A Fuel |
| 43. | Blade-to-Blade Variations in Shocks Upstream of Both a Forward-Swept and an Aft-Swept Fan |
| 44. | Burst Testing and Analysis of Superalloy Disks With a Dual Grain Microstructure |
| 45. | Calculation of Thermally-Induced Displacements in Spherically Domed Ion Engine Grids |
| 46. | Carbon-Carbon Recuperators in Closed-Brayton-Cycle Space Power Systems |
| 47. | Carrier Modulation Via Waveform Probability Density Function |
| 48. | Centaur Test Bed (CTB) for Cryogenic Fluid Management |
| 49. | Characterization of a High Current, Long Life Hollow Cathode |
| 50. | Comparison of Atomic Oxygen Erosion Yields of Materials at Various Energy and Impact Angles |
| 51. | Comparison of Balloonsonde and Remote Sensing Atmospheric Measurements |
| 52. | Composite Erosion by Computational Simulation |
| 53. | Comprehensive Report of Fan Performance From Duct Rake Instrumentation on 1.294 Pressure Ratio, 806 ft/sec Tip Speed Turbofan Simulator Models |
| 54. | Computer Aided Design of Ka-Band Waveguide Power Combining Architectures for Interplanetary Spacecraft |
| 55. | Conceptual Design of a Condensing Heat Exchanger for Space Systems Using Porous Media |
| 56. | Conjugate Heat Transfer Analyses on the Manifold for Ramjet Fuel Injectors |
| 57. | Constrained Kalman Filtering Via Density Function Truncation for Turbofan Engine Health Estimation |
| 58. | Continued Investigation of Leakage and Power Loss Test Results for Competing Turbine Engine Seals |
| 59. | Cool and Quiet: Partnering to Enhance the Aerodynamic and Acoustic Performance of Installed Electronics Cooling Fans: A White Paper |
| 60. | Current Research Activities in Drive System Technology in Support of the NASA Rotorcraft Program |
| 61. | Cyclic Oxidation Behavior of Cold Sprayed CuCrAl-Coated and Uncoated GRCop-84 Substrates for Space Launch Vehicles |
| 62. | Demonstration of an Ice Contamination Effects Flight Training Device |
| 63. | Design and Development of a CPCI-Based Electronics Package for Space Station Experiments |
| 64. | Design and Testing of Space Telemetry SCA Waveform |
| 65. | Developing Multilayer Thin Film Strain Sensors With High Thermal Stability |
| 66. | Development and Testing of a Radial Halbach Magnetic Bearing |
| 67. | Development and Testing of an Axial Halbach Magnetic Bearing |
| 68. | Development of a 32 Inch Diameter Levitated Ducted Fan Conceptual Design |
| 69. | Development of a Liner Design Methodology and Relevant Results of Acoustic Suppression in the Farfield for Mixer-Ejector Nozzles |
| 70. | Development of a Numerical Model for High-Temperature Shape Memory Alloys |
| 71. | Development of Design Analysis Methods for C/SiC Composite Structures |
| 72. | Development of Laser Fabricated Ti-6Al-4V |
| 73. | Dilution of Precision-Based Lunar Navigation Assessment for Dynamic Position Fixing |
| 74. | Discharge Chamber Plasma Structure of a 30-cm NSTAR-Type Ion Engine |
| 75. | Dual Input AND Gate Fabricated From a Single Channel Poly (3-Hexylthiophene) Thin Film Field Effect Transistor |
| 76. | Dynamic Wind-Tunnel Testing of a Sub-Scale Iced Business Jet |
| 77. | Dynamics of Orbital Masses in an Unbalanced Rotor |
| 78. | Effect of Heat on Space-Time Correlations in Jets |
| 79. | Effect of Prolonged Exposure to High Temperature Air on PhysicalCharacteristics of a Powder Metallurgy Composite Solid Lubricant |
| 80. | Effects of Doping on Thermal Conductivity of Pyrochlore Oxides for Advanced Thermal Barrier Coatings |
| 81. | Effects of Hydrogen on GRCop-84 |
| 82. | Effects of Transducer Installation on Unsteady Pressure Measurements on Oscillating Blades |
| 83. | Engine Company Evaluation of Feasibility of Aircraft Retrofit Water-Injected Turbomachines |
| 84. | Engineering Analysis Studies for Preliminary Design of Lightweight Cryogenic Hydrogen Tanks in UAV Applications |
| 85. | Enhancement of the Feature Extraction Capability in Global Damage Detection Using Wavelet Theory |
| 86. | Enhancing Icing Training for Pilots Through Web-Based Multimedia |
| 87. | Entropy Generation/Availability Energy Loss Analysis Inside MIT Gas Spring and "Two-Space" Test Rigs |
| 88. | Evaluation of a Stirling Solar Dynamic System for Lunar Oxygen Production |
| 89. | Evaluation of an Outer Loop Retrofit Architecture for Intelligent Turbofan Engine Thrust Control |
| 90. | Evaluation of Long Duration Flight on Venus |
| 91. | Experimental and Computational Analysis of Unidirectional Flow Through Stirling Engine Heater Head |
| 92. | Experimental Results of Thin-Film Photovoltaic Cells in a Low Density LEO Plasma Environment: Ground Tests |
| 93. | Experimental Validation of a Closed Brayton Cycle System Transient Simulation |
| 94. | Extended Operation of Stirling Convertors in a Thermal Vacuum Environment |
| 95. | Fabrication Materials for a Closed Cycle Brayton Turbine Wheel |
| 96. | Fan Performance From Duct Rake Instrumentation on a 1.294 Pressure Ratio, 725 ft/sec Tip Speed Turbofan Simulator Using Vaned Passage Casing Treatment |
| 97. | Fast Turn-Off Times Observed in Experimental 4H SiC Thyristors |
| 98. | Feasibility Study of Jupiter Icy Moons Orbiter Permanent Magnet Alternator Start Sequence |
| 99. | Flight Development for Cryogenic Fluid Management in Support of Exploration Missions |
| 100. | Flow and Noise Control in High Speed and High Reynolds Number Jets Using Plasma Actuators |
| 101. | Forces Generated by High Velocity Impact of Ice on a Rigid Structure |
| 102. | Foreign Object Damage in a Gas-Turbine Grade Silicon Nitride by Spherical Projectiles of Various Materials |
| 103. | Free Body Dynamics of a Spinning Cylinder With Planar Restraint (a.k.a. Barrel of Fun) |
| 104. | Fuel Cell Airframe Integration Study for Short-Range Aircraft: Volume 1: Aircraft Propulsion and Subsystems Integration Evaluation |
| 105. | Further Assessment of MVD Effects in SLD Applications |
| 106. | Further Investigations of High Temperature Knitted Spring Tubes for Advanced Control Surface Seal Applications |
| 107. | Further Refinement of the LEWICE SLD Model |
| 108. | G2 Flywheel Module Design |
| 109. | Gas Foil Bearings for Space Propulsion Nuclear Electric Power Generation |
| 110. | Gas Seal Pad With Herringbone-Grooved Rotor-Stiffness and Load Capacity |
| 111. | Grid Gap Measurement for an NSTAR Ion Thruster |
| 112. | Heat Rejection Concepts for Lunar Fission Surface Power Applications |
| 113. | Heat Transfer and Fluid Dynamics Measurements in the Expansion Space of a Stirling Cycle Engine |
| 114. | High Fidelity System Simulation of Multiple Components in Support of the UEET Program |
| 115. | High Power ECR Ion Thruster Discharge Characterization |
| 116. | High Power High Efficiency Ka-Band Power Combiners for Solid-State Devices |
| 117. | High Temperature Evaluation of an Active Clearance Control System Concept |
| 118. | High-Strain-Rate Compression Testing of Ice |
| 119. | HiPEP Ion Optics System Evaluation Using Gridlets |
| 120. | Hybrid Kalman Filter Approach for Aircraft Engine In-Flight Diagnostics: Sensor Fault Detection Case |
| 121. | Hybrid Kalman Filter: A New Approach for Aircraft Engine In-Flight Diagnostics |
| 122. | Hybrid Solid Oxide Fuel Cell/Gas Turbine System Design for High Altitude Long Endurance Aerospace Missions |
| 123. | Identification of Technologies for Provision of Future Aeronautical Communications |
| 124. | Impact Damage and Strain Rate Effects for Toughened Epoxy Composite Structures |
| 125. | Improved Seals for High Temperature Airframe Applications |
| 126. | Intermediate Fidelity Closed Brayton Cycle Power Conversion Model |
| 127. | International Space Station Increment--6/8 Microgravity Environment Summary Report: November 2002 to April 2004 |
| 128. | Investigation of Swirling Air Flows Generated by Axial Swirlers in a Flame Tube |
| 129. | Investigation of Tapered Roller Bearing Damage Detection Using Oil Debris Analysis |
| 130. | Ion Beam Characterization of a NEXT Multi-Thruster Array Plume |
| 131. | Junction-to-Case Thermal Resistance of a Silicon Carbide Bipolar Junction Transistor Measured |
| 132. | Key Issues for Navigation and Time Dissemination in NASA's Space Exploration Program |
| 133. | Large Engine Technology (LET) Short Haul Civil Tiltrotor Contingency Power Materials Knowledge and Lifing Methodologies |
| 134. | Latest Developments in SLD Scaling |
| 135. | Life and Operating Range Extension of the BPT-4000 Qualification Model Hall Thruster |
| 136. | Life Limiting Behavior in Interlaminar Shear of Continuous Fiber-Reinforced Ceramic Matrix Composites at Elevated Temperatures |
| 137. | Liquid Hydrogen Sensor Considerations for Space Exploration |
| 138. | Measurement of Flow Pattern Within a Rotating Stall Cell in an Axial Compressor |
| 139. | Mechanical Characterization of ZnSe Windows for Use With the Flow Enclosure Accommodating Novel Investigations in Combustion of Solids (FEANICS) Module |
| 140. | Metallized Gelled Propellants Combustion Experiments in a Pulse Detonation Engine |
| 141. | Micro-Energy Rates for Damage Tolerance and Durability of Composite Structures |
| 142. | Minnowbrook V: 2006 Workshop on Unsteady Flows in Turbomachinery |
| 143. | MISSE PEACE Polymers Atomic Oxygen Erosion Results |
| 144. | MISSE Scattered Atomic Oxygen Characterization Experiment |
| 145. | Model-Based Self-Tuning Multiscale Method for Combustion Control |
| 146. | Modeling of Aerosols in Post-Combustor Flow Path and Sampling System |
| 147. | Modeling of the Near Field Coupling Between an External Loop and an Implantable Spiral Chip Antennas in Biosensor Systems |
| 148. | Modular, Cost-Effective, Extensible Avionics Architecture for Secure, Mobile Communications |
| 149. | Motion of Air Bubbles in Water Subjected to Microgravity Accelerations |
| 150. | Multi-Megawatt Gas Turbine Power Systems for Lunar Colonies |
| 151. | NASA Aeroelasticity Handbook: Volume 2: Design Guides: Part 2 |
| 152. | NASA Hydrogen Research at Florida Universities: Program Year 2003 |
| 153. | NASA Hydrogen Research for Spaceport and Space Based Applications |
| 154. | NASA's 2004 In-Space Propulsion Refocus Studies for New Frontiers Class Missions |
| 155. | NASA's Plum Brook Station Water Systems |
| 156. | Near Discharge Cathode Assembly Plasma Potential Measurements in a 30-cm NSTAR-Type Ion Engine During Beam Extraction |
| 157. | Neutralizer Characterization of a NEXT Multi-Thruster Array With Electrostatic Probes |
| 158. | Nozzle Acoustic Test Rig User Manual |
| 159. | NPSS Multidisciplinary Integration and Analysis |
| 160. | Observations of a Cast Cu-Cr-Zr Alloy |
| 161. | On Space-Time Inversion Invariance and its Relation to Non-Dissipatedness of a CESE Core Scheme |
| 162. | On the Mixing of Single and Opposed Rows of Jets With a Confined Crossflow |
| 163. | On Whether Angular Momentum in Electric and Magnetic Fields Radiates to Infinity |
| 164. | Operational Influence on Thermal Behavior of High-Speed Helical Gear Trains |
| 165. | Optimal Control of Shock Wave Turbulent Boundary Layer Interactions Using Micro-Array Actuation |
| 166. | Pattern Formation in Diffusion Flames Embedded in von Kármán Swirling Flows |
| 167. | Performance and Operational Characteristics for a Dual Brayton Space Power System With Common Gas Inventory |
| 168. | Performance Assessment of a Large Scale Pulsejet-Driven Ejector System |
| 169. | Performance Evaluations of Ceramic Wafer Seals |
| 170. | Performance of Solar Electric Powered Deep Space Missions Using Hall Thruster Propulsion |
| 171. | Phased-Array Study of Dual-Flow Jet Noise: Effect of Nozzles and Mixers |
| 172. | Phosphate Reactions as Mechanisms of High-Temperature Lubrication |
| 173. | Plasma Characteristics Measured in the Plume of a NEXT Multi-Thruster Array |
| 174. | Power System Concepts for the Lunar Outpost: A Review of the Power Generation, Energy Storage, Power Management and Distribution (PMAD) System Requirements and Potential Technologies for Development of the Lunar Outpost |
| 175. | Precision of Sensitivity in the Design Optimization of Indeterminate Structures |
| 176. | Probabilistic Design of Composite Structures |
| 177. | Probabilistic Structural Evaluation of Uncertainties in Radiator Sandwich Panel Design |
| 178. | Procedure for Separating Noise Sources in Measurements of Turbofan Engine Core Noise |
| 179. | Proceedings of the Sixth Integrated Communications, Navigation, and Surveillance (ICNS) Conference and Workshop |
| 180. | Progress in the Development of Practical Remote Detection of Icing Conditions |
| 181. | Proposed Approach for Estimating Launch Vehicle Explosive Risk |
| 182. | Propulsion IVHM Technology Experiment |
| 183. | Quiet High Speed Fan (QHSF) Flutter Calculations Using the TURBO Code |
| 184. | Rate-Based Model Predictive Control of Turbofan Engine Clearance |
| 185. | Reliability of Radioisotope Stirling Convertor Linear Alternator |
| 186. | Research & Technology 2005 |
| 187. | Responding to Mechanical Antigravity |
| 188. | Restricted Acoustic Modal Analysis Applied to Internal Combustor Spectra and Cross-Spectra Measurements |
| 189. | Review of Current State of the Art and Key Design Issues With Potential Solutions for Liquid Hydrogen Cryogenic Storage Tank Structures for Aircraft Applications |
| 190. | Rotating Rake Mode Measurements Over Passive Treatment in a Ducted Fan |
| 191. | Rotorcraft Health Management Issues and Challenges |
| 192. | Round Trip Energy Efficiency of NASA Glenn Regenerative Fuel Cell System |
| 193. | Seal Investigations of an Active Clearance Control System Concept |
| 194. | Sealing in Turbomachinery |
| 195. | Seals/Secondary Fluid Flows Workshop 1997 |
| 196. | Seals/Secondary Fluid Flows Workshop 1997: HSR Engine Special Session |
| 197. | Sensor Data Qualification for Autonomous Operation of Space Systems |
| 198. | Separation Control in a Multistage Compressor Using Impulsive Surface Injections |
| 199. | Settled Cryogenic Propellant Transfer |
| 200. | Short Haul Civil Tiltrotor Contingency Power System Preliminary Design |
| 201. | Simulated Data for High Temperature Composite Design |
| 202. | Single Phase Passive Rectification Versus Active Rectification Applied to High Power Stirling Engines |
| 203. | Slow Crack Growth and Fracture Toughness of Sapphire for the International Space Station Fluids and Combustion Facility |
| 204. | Small Hot Jet Acoustic Rig Validation |
| 205. | Smectic A Filled Birefringent Elements and Fast Switching Twisted Dual Frequency Nematic Cells Used for Digital Light Deflection |
| 206. | Solar Effects on Tensile and Optical Properties of Hubble Space Telescope Silver-Teflon® Insulation |
| 207. | Solar Electric Propulsion for Primitive Body Science Missions |
| 208. | Solid Oxide Fuel Cell APU Feasibility Study for a Long Range Commercial Aircraft Using UTC ITAPS Approach: Volume I: Aircraft Propulsion and Subsystems Integration Evaluation |
| 209. | Spin Testing of Superalloy Disks With Dual Grain Structure |
| 210. | Spotlight-8 Image Analysis Software |
| 211. | Spread and SpreadRecorder--An Architecture for Data Distribution |
| 212. | Stability Limits of a PD Controller for a Flywheel Supported on Rigid Rotor and Magnetic Bearings |
| 213. | Stabilizing Gyroscopic Modes in Magnetic-Bearing-Supported Flywheels by Using Cross-Axis Proportional Gains |
| 214. | Static and Switching Characteristics of a 4H-SiC Based BJT to 200 ºC |
| 215. | Status of a Power Processor for the Prometheus-1 Electric Propulsion System |
| 216. | Status of NASA's Advanced Radioisotope Power Conversion Technology Research and Development |
| 217. | Stirling Convertor Fasteners Reliability Quantification |
| 218. | Structural Analysis of Pyrolytic Graphite Optics for the HiPEP Ion Thruster |
| 219. | Structural Composites Corrosive Management by Computational Simulation |
| 220. | Summary of Stirling Convertor Testing at NASA Glenn Research Center |
| 221. | Switching Characteristics of a 4H-SiC Based Bipolar Junction Transistor to 200 °C |
| 222. | Taking the Politics Out of Satellite and Space-Based Communications Protocols |
| 223. | Tapered Roller Bearing Damage Detection Using Decision Fusion Analysis |
| 224. | Tensile and Creep Property Characterization of Potential Brayton Cycle Impeller and Duct Materials |
| 225. | The 2kW Mini-BRU Electrical Controls Concept and Transient Performance |
| 226. | The Advanced Noise Control Fan |
| 227. | The Equivalence of the Radial Return and Mendelson Methods for Integrating the Classical Plasticity Equations |
| 228. | The Nutating Engine-Prototype Engine Progress Report and Test Results |
| 229. | The Role of Flight Experiments in the Development of Cryogenic Fluid Management Technologies |
| 230. | Thermal Management Techniques for Oil-Free Turbomachinery Systems |
| 231. | Thin Film Ceramic Strain Sensor Development for Harsh Environments: Interim Report on Identification of Candidate Thin Film Ceramics to Test for Viability for Static Strain Sensor Development |
| 232. | Thin Film Physical Sensor Instrumentation Research and Development at NASA Glenn Research Center |
| 233. | Three-Dimensional Field Solutions for Multi-Pole Cylindrical Halbach Arrays in an Axial Orientation |
| 234. | Torque Production in a Halbach Machine |
| 235. | Transient Response of Rotor on Rolling-Element Bearings with Clearance |
| 236. | Turbulent Chemical Interaction Models in NCC: Comparison |
| 237. | Two Phase Flow Modeling: Summary of Flow Regimes and Pressure Drop Correlations in Reduced and Partial Gravity |
| 238. | Two Point Space-Time Correlation of Density Fluctuations Measured in High Velocity Free Jets |
| 239. | Two-Dimensional Simulation of Left-Handed Metamaterial Flat Lens Using Remcon XFDTD |
| 240. | Undercutting Studies of Protected Kapton® H Exposed to In-Space and Ground-Based Atomic Oxygen |
| 241. | Update on Extended Operation of Stirling Convertors in Thermal Vacuum at NASA Glenn Research Center |
| 242. | Use of High-Power Brayton Nuclear Electric Propulsion (NEP) for a 2033 Mars Round-Trip Mission |
| 243. | User Guide for Compressible Flow Toolbox: Version 2.1 for Use With MATLAB® |
| 244. | Validating Coherence Measurements Using Aligned and Unaligned Coherence Functions |
| 245. | Validation of Multi-Dimensional Stirling Engine Design Codes: Measurements in the 90-Degree Turn Test Section |
| 246. | Variable Frequency Diverter Actuation for Flow Control |
| 247. | Wearable Wireless Telemetry System for Implantable Bio-MEMS Sensors |
| 248. | Weather Information Communication (WINCOMM) VDL-3 and 1090ES Final Test Requirements, Test Plans, and Test Results |
| 249. | Weather Information Communication Technologies for Increased Safety and Mobility in the National Airspace System |