NASA Tech Briefs - January 2009 - Vol. 33 No. 1

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Inside this issue

Features

Feature Articles

CAD Tools: Breaking Barriers
Micromachining with Lasers

Who's Who

Dr. Woodrow Whitlow Jr., Director, John H. Glenn Research Center, Cleveland, OH

Products of the Month

ML7 BGS sensors
Photonics West Exhibitor Preview

Application Briefs

Connectors Provide Signal Reliability for Mars Science Laboratory
Wireless Video Surveillance System Secures Aircraft
Measuring LED and Solid State Lighting Performance
Tech Briefs

Semiconductors & ICs

Submillimeter-Wave Amplifier Module With Integrated Waveguide Transitions
Economical Implementation of a Filter Engine in an FPGA

Mechanics & Machinery

Alternative OTEC Scheme for a Submarine Robot
Utilizing Ocean Thermal Energy in a Submarine Robot
Fuel-Cell Power Systems Incorporating Mg-Based H₂ Generators

Information Sciences

High-Performance Algorithm for Solving the Diagnosis Problem
Efficient Method for Optimizing Placement of Sensors
Truncation Depth Rule-of-Thumb for Convolutional Codes

Materials

Gadolinia-Doped Ceria Cathodes for Electrolysis of CO2

Manufacturing & Prototyping

Improved Joining of Metal Components to Composite Structures
Machined Titanium Heat-Pipe Wick Structure

Physical Sciences

Small CO₂ Sensors Operate at Lower Temperature
Effects of Temperature on Polymer/Carbon Chemical Sensors
Tele-Supervised Adaptive Ocean Sensor Fleet
CGH Figure Testing of Aspherical Mirrors in Cold Vacuums
Silicon Microleaks for Inlets of Mass Spectrometers
Series-Coupled Pairs of Silica Microresonators
Formation Flying of Components of a Large Space Telescope
Laser Metrology Heterodyne Phase-Locked Loop

Bio-Medical

Sensitive, Rapid Detection of Bacterial Spores
Adenosine Monophosphate-Based Detection of Bacterial Spores

Photonics

Metrology System for a Large, Somewhat Flexible Telescope
Formation Flying of Components of a Large Space Telescope
Laser Metrology Heterodyne Phase-Locked Loop
Precise Stabilization of the Optical Frequency of WGMRs
Spatial Modulation Improves Performance in CTIS

Electronics & Computers

The Radio Frequency Health Node Wireless Sensor System
Synthesis of Submillimeter Radiation for Spectroscopy
Generating Ka-Band Signals Using an X-Band Vector Modulator
100-GHz Phase Switch/Mixer Containing a Slot-Line Transition
SiC Optically Modulated Field-Effect Transistor
Metrology System for a Large, Somewhat Flexible Telescope
Precise Stabilization of the Optical Frequency of WGMRs
Spatial Modulation Improves Performance in CTIS
Tech Exchange

Tech Needs

Technology for Improved Performance of Release Agents in Die Casting
In-Store Hair Analysis Tools

Tech for License

Single-Layer Electrochromic Polymer Technology for Automotive and Architectural Glazing Light Control
Tool-Free Engineered Composite Thermoforming Technology