April 1, 2015 NASA Tech Briefs - April 2015 - Vol. 39 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 Products of Tomorrow: April 2015 Reducing Interconnection Weight in Autosports SAE 2015 World Congress Preview Who's Who Emily Wilson, Scientist, Goddard Space Flight Center, Greenbelt, MD Application Briefs Precision Measurement and Inspection Ensure Quality of SLS Rocket Panels Tech Briefs Mechanics & Machinery ACS Anchor Guide Stud and Caddy Next-Generation, Lightweight Hard Upper Torso/Hatch Assembly Elastic Deployable Composite Tubular Roll-Out Boom Reduced-Speed Duplex-Ring Seal Performing Launch Depressurization Test on Large Test Articles Using Two Vacuum Chambers in Tandem Pyramid Micro-Electrofluidic-Spray Propulsion Thruster with Integrated Attitude and Thrust Vector Control Sampling Mechanism for a Comet Sample Return Mission Materials Purifying Nanomaterials by Dissolving Excess Reactants and Catalysts in Ferric Chloride White, Electrically Conductive, Radiation-Stable, Thermal Control Coating Plasma-Assisted Thin Film Coatings to Create Highly Hydrophobic Porous Structures High-Performance Photocatalytic Oxidation Reactor System Software Lunar Cold Trap Contamination by Landing Vehicles Visualization of Terascale Datasets with Imposters Transforming DAVE-ML Models to Executable C/C++ Context-Based Configuration Management System Mesh: Lightweight Grid Middleware Using Existing Secure Shell Infrastructure Delay Tolerant Networking Contact Graph Routing MACHETE Model JavaGenes Data Optimization A Large-Eddy Simulation Model of the Atmospheric Boundary Layer Physical Sciences Hydrogen Peroxide for Microbial Growth Control in Space Potable Water Systems Method of Water Regeneration From Waste and Cascade Distillation Test & Measurement Low Er-Doped Yttrium Gallium Garnet (YGG) as Active Media for Solid-State Lasers at 1651 nm Dual-Cavity Rayleigh Scattering Measurement System Miniature Laser Magnetometer Cryogenic Slosh Apparatus Negative-Ion Time Projection Chamber Polarimeter for Measuring Polarization of Bright Transient Astrophysical Sources Nonlinear Swept Frequency Technique for CO2 Measurements Using a CW Laser System Sensors/Data Acquisition Advanced Methodology for Precisely Simulating RTD Sensor Types Microwave Radar Sensor Module Microphones and Accelerometer Sensors Network for Acoustic Diagnostics (MASNAD) MEMS Gyroscope with Dual Interferometric Sense Elements MMOD Risk Mitigation Technology for Spacecraft Thermal Protection Systems Shock-Sensing Apparatus Aerospace An Operationally Based Vision Assessment Simulator for Domes Ad Hoc Adaptive Pitch Axis Pilot Model Development of a Turnkey Clear Air Turbulence Detection System Products Products Product of the Month: April 2015 Motion Control and Automation Technology Briefs Reducing Power-On/Off Glitches in Precision DACs Piezoelectric Actuated Inchworm Motor (PAIM) Advanced Rolling Mechanics Analysis (AROMA) 1.0 Reducing Power-On/Off Glitches in Precision DACs: Part 2 Articles PLC-Based Robotic Controls Versus OEM Robotic Controls Applications Autonomous Robots Keep Warehouse Running Green Products Magnetic Encoders Servo Drive Planetary Gearbox Clutches Bearings Linear Motors Electric Cylinder Pump Drive Stages Nanopositioning Stages Coupling Brushless Motor Drive Motion Controller Robotic Tool Changer Positioning Assemblies View the discussion thread.