April 1, 2012 NASA Tech Briefs - April 2012 - Vol. 36 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 Application Briefs Mission Control Core Trajectory Subsystem Gets Software Upgrade Medical Robotics Experts Help Advance NASA’s Satellite Surgery Project Who's Who Michael Gazarik, Director of Space Technology Programs, NASA Headquarters, Washington DC Articles 3D Printing Gets Real Tech Briefs Physical Sciences Gas Composition Sensing Using Carbon Nanotube Arrays Computational Ghost Imaging for Remote Sensing Indium Tin Oxide Resistor-Based Nitric Oxide Microsensors Sensor for Boundary Shear Stress in Fluid Flow Oxygen-Methane Thruster Lunar Navigation Determination System — LaNDS Supercritical CO₂ Cleaning System for Planetary Protection and Contamination Control Applications Design and Performance of a Wideband Radio Telescope Launch Method for Kites in Low-Wind or No-Wind Conditions Manufacturing & Prototyping Processing of Nanosensors Using a Sacrificial Template Approach Fabrication of a Cryogenic Bias Filter for Ultrasensitive Focal Plane Software Dispersed Fringe Sensing Analysis — DFSA 'In Situ' Mosaic Brightness Correction Simplex GPS and InSAR Inversion Software Virtual Machine Language 2.1 Multi-Scale Three- Dimensional Variational Data Assimilation System for Coastal Ocean Prediction Pandora Operation and Analysis Software Materials High-Temperature Shape Memory Polymers Non-Toxic, Low-Freezing, Drop-In Replacement Heat Transfer Fluids Modular Flooring System Materials That Enhance Efficiency and Radiation Resistance of Solar Cells Information Sciences Model-Based Method for Sensor Validation Finite Element Models for Electron Beam Freeform Fabrication Process IMAGESEER — IMAGEs for Education and Research Vehicle Detection for RCTA/ANS (Autonomous Navigation System) HyDE Framework for Stochastic and Hybrid Model-Based Diagnosis Autonomous Information Unit for Fine-Grain Data Access Control and Information Protection in a Net-Centric System Image Mapping and Visual Attention on the Sensory Ego-Sphere Mechanics & Machinery Static Gas-Charging Plug Low-Cost, Rugged High-Vacuum System Stemless Ball Valve Floating Oil-Spill Containment Device Electronics & Computers Digital Architecture for a Trace Gas Sensor Platform Qualification of Engineering Camera for Long-Duration Deep Space Missions Remotely Powered Reconfigurable Receiver for Extreme Environment Sensing Platforms Bump Bonding Using Metal-Coated Carbon Nanotubes Products Product of the Month: HP Z1 Workstation Motion Control and Automation Technology LOGIN TO DOWNLOAD Subscribe to future issues. SUBSCRIBE Articles Underwater Autonomous Vehicles Combine Robotics and Vision to Inspect Oil Pipelines Applications Creating a Fully Automated Pharmacy Warehouse Products Measurement Machine Software Linear Actuators Linear Systems Servomotors Rubber Mountings Drives Software-Based PLC Tri-Axial Inclinometer Piezo Stage System Stepper Drive/Controller Diaphragm Micropump Embedded Technology LOGIN TO DOWNLOAD Subscribe to future issues. SUBSCRIBE Products Smart Reset ICs Battery Simulation Software DRAM-on-Logic IC Articles Implementing PCI Express on PC/104-Size Modules COM Express Revision 2.0: What’s new in the latest specification? Topics: View the discussion thread.