April 1, 2008 NASA Tech Briefs - April 2008 - Vol. 32 No. 4 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 Articles Eye On Innovation 2007 NASA Tech Briefs "Create the Future" Design Contest Machinery & Equipment Category Winner, "Create the Future" 2007 Design Contest Grand Prize Winner, "Create the Future" 2007 Design Contest Medical Category Winner, "Create the Future" 2007 Design Contest Consumer Products Category Winner, "Create the Future" 2007 Design Contest Safety & Security Category Winner, "Create the Future" 2007 Design Contest Transportation Category Winner, "Create the Future" 2007 Design Contest Sustainable Technologies Category Winner, "Create the Future" 2007 Design Contest Meet the Judges, "Create the Future" 2007 Design Contest Contest Sponsors, "Create the Future" 2007 Design Contest Who's Who Dr. Steve Hipskind, Chief, NASA's Earth Science Division Application Briefs Rugged, Flight-Ready Data Storage Selected for NASA Aircraft Project Software Improves Access to Data at NASA Wind Tunnel Facility Tech Needs NASA Technology Needs: An Overview Tech Briefs Semiconductors & ICs Dual-Input AND Gate From Single-Channel Thin-Film FET Mechanics & Machinery Tactile Robotic Topographical Mapping Without Force or Contact Sensors Ultrasonic/Sonic Impacting Penetrators Miniature, Lightweight, One-Time-Opening Valve Information Sciences Supplier Management System Improved CLARAty Functional-Layer/Decision-Layer Interface JAVA Stereo Display Toolkit PyPele Rewritten To Use MPI Materials Gas Sensors Based on Coated and Doped Carbon Nanotubes Photochemically Synthesized Polyimides Hydroxide-Assisted Bonding of Ultra-Low-Expansion Glass Optimized Carbonate and Ester-Based Li-Ion Electrolytes Software Simulating Operation of a Complex Sensor Network Manufacturing & Prototyping Fabrication of Gate-Electrode Integrated Carbon-Nanotube Bundle Field Emitters Physical Sciences Thin-Film Magnetic-Field-Response Fluid-Level Sensor for Non-Viscous Fluids Remote-Sensing Time Series Analysis, a Vegetation Monitoring Tool Data Assimilation Cycling for Weather Analysis Probing a Spray Using Frequency-Analyzed Light Scattering Bio-Medical Progress in Development of Improved Ion-Channel Biosensors Activating STAT3 Alpha for Promoting Healing of Neurons Hydrocyclone/Filter for Concentrating Biomarkers From Soil Electronics & Computers Using Transponders on the Moon to Increase Accuracy of GPS Controller for Driving a Piezoelectric Actuator at Resonance Coaxial Electric Heaters High-Density, High-Bandwidth, Multilevel Holographic Memory Products Products Simscape™ Photonics Tech Briefs Briefs Compact 6-DOF Stage for Optical Adjustments Applications Smoothing the Wave for High-Power Lasers Articles Thermographic Imaging Selecting an IR Camera with the Right Detector Products Photonics Tech Briefs Announces 2007 Products of the Year Product of the Month: 1940nm Diode Laser Arrays Pyroelectric Detectors Vibration Cancellation System Power Converters Digital Potentiometer Laser Interferometer Kit Optical Table Supercontinuum Laser Source PXIT Modules Waveguide Optics Design Suite Motion Control Technology Articles Linear Motors and Actuators Meets Automation Needs Motion Control Components Lend Hand to Biomedical Applications Applications Universal Joint Carries Power in Surgical Device Linear Rails Bear Weight of New X-Ray Table Apps Encoder Helps Track Molecular Level Movement Products Brushless Motor Design Kit Bevel Gear Drives Load Cells Linear Actuators and Amplifiers Absolute Encoder PTFE Bearing Liner Single-Axis Motion Control Linear Translation Stages Linear Actuated Sensor Accelerometer Industrial Joysticks Microactuator Mini Bearing Motor Control Reference Platform Brushless DC Pump High-Temp Bearing Materials Linear Actuators Precision Tensioning Brake Clutch/brake Module View the discussion thread.