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  1. NASA's Curiosity Rover Making Tracks and Observations

    http://www.jpl.nasa.gov/images/msl/20150416/pia19391-226.jpg

    NASA's Curiosity Mars rover is approaching a new geological unit and has surpassed 10 kilometers in total distance driven on Mars. ...
  2. NASA Nominated for 2015 Best-of-the-Web Honors

    http://www.jpl.nasa.gov/images/awards/20150416/webby20150416-226.jpg

    Fans of NASA can vote for the agency's nominees in the 2015 Webby awards competition.



    ...
  3. Application of Spectral Analysis Techniques in the Intercomparison of Aerosol Data: Part III. Using Combined PCA to Compare Spatiotemporal Variability of MODIS, MISR and OMI Aerosol Optical Depth

    Abstract: Satellite measurements of global aerosol properties are very useful in constraining aerosol parameterization in climate models. The reliability of different data sets in representing global...
  4. OMPS Limb Profiler Instrument Performance Assessment

    Abstract: Following the successful launch of the Ozone Mapping and Profiler Suite (OMPS) aboard the Suomi National Polar-orbiting Partnership (SNPP) spacecraft, the NASA OMPS Limb team began an...
  5. Performance Simulations for a Spaceborne Methane Lidar Mission

    Abstract: Future spaceborne lidar measurements of key anthropogenic greenhouse gases are expected to close current observational gaps particularly over remote, polar, and aerosol-contaminated...
  6. Computational and Experimental Unsteady Pressures for Alternate SLS Booster Nose Shapes

    Abstract: Delayed Detached Eddy Simulation (DDES) predictions of the unsteady transonic flow about a Space Launch System (SLS) configuration were made with the Fully UNstructured Three-Dimensional...
  7. Surface Ozone Variability and Trends over the South African Highveld from 1990 to 2007

    Abstract: Surface ozone is a secondary air pollutant formed from reactions between nitrogen oxides (NOx = NO + NO2) and volatile organic compounds in the presence of sunlight. In this work we examine...
  8. Strategies for Independent V&V of the MSL Fault Protection Software

    Abstract: No abstract available

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  9. Microarcsec Astrometry with Moderate Telescopes

    Abstract: No abstract available

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  10. Preliminary Weight Savings Estimate for a Commercial Transport Wing Using Rod-Stiffened Stitched Composite Technology

    Abstract: A structural concept called pultruded rod stitched efficient unitized structure (PRSEUS) was developed by the Boeing Company to address the complex structural design aspects associated with...
  11. Dawn Glimpses Ceres' North Pole

    http://www.jpl.nasa.gov/images/dawn/20150416/pia19317-226.gif

    After spending more than a month in orbit on the dark side of dwarf planet Ceres, NASA's Dawn spacecraft has captured several views...
  12. Blade Vibration Measurement System for Unducted Fans

    Abstract: With propulsion research programs focused on new levels of efficiency and noise reduction, two avenues for advanced gas turbine technology are emerging: the geared turbofan and ultrahigh...
  13. Embedded Data Acquisition Tools for Rotorcraft Diagnostic Sensors

    Abstract: Rotorcraft drive trains must withstand enormous pressure while operating continuously in extreme temperature and vibration environments. Captive components, such as planetary and spiral...
  14. Design Concepts for Cooled Ceramic Matrix Composite Turbine Vanes

    Abstract: This project demonstrated that higher temperature capabilities of ceramic matrix composites (CMCs) can be used to reduce emissions and improve fuel consumption in gas turbine engines. The...
  15. Design Environment for Multifidelity and Multidisciplinary Components

    Abstract: One of the greatest challenges when developing propulsion systems is predicting the interacting effects between the fluid loads, thermal loads, and structural deflection. The interactions...
  16. Fast Response Shape Memory Effect Titanium Nickel (TiNi) Foam Torque Tubes

    Abstract: Shape Change Technologies has developed a process to manufacture net-shaped TiNi foam torque tubes that demonstrate the shape memory effect. The torque tubes dramatically reduce response...
  17. Integrated Multidisciplinary Optimization Objects

    Abstract: OpenMDAO is an open-source MDAO framework. It is used to develop an integrated analysis and design environment for engineering challenges. This Phase II project integrated additional...
  18. Simulation Tool for Dielectric Barrier Discharge Plasma Actuators

    Abstract: Traditional approaches for active flow separation control using dielectric barrier discharge (DBD) plasma actuators are limited to relatively low speed flows and atmospheric conditions....
  19. Astrometric Detection of Earthlike Planets with Moderate Telescopes

    Abstract: No abstract available

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  20. The Soil Moisture Active Passive (SMAP): Radar Measurements at High Latitudes and of Freeze/Thaw State

    Abstract: The Soil Moisture Active/Passive (SMAP) mission is scheduled for a late 2014 launch date. The mission will use both active radar and passive radiometer instruments at L-Band. In order to...
  21. Fully Integral, Flexible Composite Driveshaft

    Abstract: An all-composite driveshaft incorporating integral flexible diaphragms was developed for prime contractor testing. This new approach makes obsolete the split lines required to attach...
  22. Blade Vibration Measurement System

    Abstract: The Phase I project successfully demonstrated that an advanced noncontacting stress measurement system (NSMS) could improve classification of blade vibration response in terms of mistuning...
  23. Real-Time Aircraft Engine-Life Monitoring

    Abstract: This project developed an inservice life-monitoring system capable of predicting the remaining component and system life of aircraft engines. The embedded system provides real-time,...
  24. Ultrahigh Temperature Capacitive Pressure Sensor

    Abstract: Robust, miniaturized sensing systems are needed to improve performance, increase efficiency, and track system health status and failure modes of advanced propulsion systems. Because...
  25. Deployable Engine Air Brake

    Abstract: On approach, next-generation aircraft are likely to have airframe noise levels that are comparable to or in excess of engine noise. ATA Engineering, Inc. (ATA) is developing a novel quiet...
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