October 11, 2009 NASA Tech Briefs - October 2009 - Vol. 33 No. 10 Here are links to this issue's Features, Tech Briefs, Products and more. You can download the complete issue, LOGIN TO DOWNLOAD Don't have an account? Sign up here. Subscribe to future issues. SUBSCRIBE Inside this issue Supplements Features Eye on Innovation Return on Investment of Model-Based Design: Increasing Innovation Capacity Application Briefs Tool Coil Springs Aid in Hubble Repairs Fire Suppression System Protects Giant Crawler Transporters Who's Who Gary Martin, Director, New Ventures & Communications Directorate, Ames Research Center, Moffett Field, CA Articles Getting Green and Staying Green Tech Briefs Physical Sciences Cloud Water Content Sensor for Sounding Balloons and Small UAVs Pixelized Device Control Actuators for Large Adaptive Optics Transparent Conveyor of Dielectric Liquids or Particles Multi-Cone Model for Estimating GPS Ionospheric Delays Progress Toward a Compact, Highly Stable Ion Clock High-Sensitivity GaN Microchemical Sensors On the Divergence of the Velocity Vector in Real-Gas Flow Manufacturing & Prototyping Mercuric Iodide Anticoincidence Shield for Gamma-Ray Spectrometer Improved Method of Design for Folding Inflatable Shells Materials Using Ozone To Clean and Passivate Oxygen-Handling Hardware Two-Piece Screens for Decontaminating Granular Material Metal Standards for Waveguide Characterization of Materials Information Sciences Guaranteeing Failsafe Operation of Extended-Scene Shack-Hartmann Wavefront Sensor Algorithm Integrated Risk and Knowledge Management Program — IRKM-P Constructing LDPC Codes From Loop-Free Encoding Modules LDPC Codes With Minimum Distance Proportional to Block Size Extending Newtonian Dynamics to Include Stochastic Processes Mechanics & Machinery Light-Driven Polymeric Bimorph Actuators T-Slide Linear Actuators Ultra-Large Solar Sail Cooperative Three-Robot System for Traversing Steep Slopes Assemblies of Conformal Tanks Microfluidic Pumps Containing Teflon® AF Diaphragms Semiconductors & ICs Low-Noise MMIC Amplifiers for 120 to 180 GHz Three MMIC Amplifiers for the 120-to-200 GHz Frequency Band Electronics & Computers G⁴FET Implementations of Some Logic Circuits Complementary Paired G⁴FETs as Voltage-Controlled NDR Device Electrically Variable or Programmable Nonvolatile Capacitors System for Automated Calibration of Vector Modulators MMICs With Radial Probe Transitions to Waveguides Tests of Low-Noise MMIC Amplifier Module at 290 to 340 GHz Products Graphical System Design Software Photonics Tech Briefs LOGIN TO DOWNLOAD Subscribe to future issues. SUBSCRIBE Briefs Instruments for Imaging From Far to Near Reflectors Made From Membranes Stretched Between Beams Applications Choosing Optics for Medical Lasers Articles Designing Electro-Optical Sensors Using Collaborative Systems Engineering Technology Products Product of the Month: Short-Pulse Ultrafast Laser VGA Cameras Gamma-Ray Spectrometer Vision Software Machine Vision Software Photodarkening-Resistant Fibers UV LEDs Ambient Light Sensor ICs Digital Wavefront Analyzing System DUV Dynamic Interferometer Thin Film Measurement Instrument LED Color Correction Filters Marking Laser Organic Photovoltaic Technology Specialty Fibers for Er:YAG Lasers Fiber Optic Switches Light Guide Foils High-Speed Nanopositioner Motion Control Technology LOGIN TO DOWNLOAD Subscribe to future issues. SUBSCRIBE Products Machine Controller Level Switch Rotary Position Sensor Motion Control Card Air Bearing Actuator Linear Motor Stages Cylinder Position Sensor Fiber Optic Rotary Encoder Axis Compensation Unit Applications Fanuc Painting Robot Boosts Production for Metal Finisher HEIDENHAIN Gauge Facilitates Precision Stereology Research Magnetic Rotary Encoders Aid Remote Control Vehicle Articles Electric Actuators Deliver Energy Efficient, Low Maintenance Solutions View the discussion thread.