NASA Tech Briefs

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Articles in Nov 2001 issue of NASA Tech Briefs

• Experiments on residual-stress bondline failures in an RSRM
• Profiling the atmosphere by use of an elevated GPS receiver
• Technologies of the month
• Laser sensor for weld seam tracking
• Computer program for designign diffractive optics
• Improved etalon-type fiber-optic hydrogen sensors
• Fourier-transform X-ray microscope
• Sizes of surface and capped In(x)Ga(1-x)As/GaAs quantum dots
• Product of the month
• A technique for injecting Ag(+) ions as biocide inot H(2)O
• NASA patents
• Software processes SRTM ScanSAR data into topographical maps
• Ease of use is key for analysis software vendors
• Algorithm for autonomous visual discovery
• Wavelength-agile exernal-cavity diode laser
• Fiber-optic illumination for microscope
• Thermal detection of gas in a tube containing flowing liquid
• Software manages documentation in a large test facility
• Improved charge-termination technique for lithium-ion cells
• Optical acceleration sensor for highly sensitive acceleration and vibration measurement
• Improved model of spectral response of an HEB mixer
• Software for displaying and comparing wind-tunnel data
• Ring-resonator/Bragg-grating laser-feedback elements
• Redundant oxygen-deficiency monitoring system
• Self-organization based on quantum entanglement
• Saturation technique for rapid binary image processing
• Fuel cell would generate power from martian atmosphere
• Thermal imaging for diagnosing fuel cells
• Tunable ultraviolet light source for combustion experiments
• Theory of formation-flying control for multiple spacecraft
• System for measuring three tilts and distance of an object
• Relatively simple atmospheric-CO(2) controller
• Improved spherical energy analyzer
• Thermoelectric contact cooler/freezer
• Network for forecasting weather and diffusion of toxins
• Onboard estimation of times of periapsis during aerobraking
• Report on user's guide for monthly vector wind profile model
• Equipment for on-wafer testing at frequencies up to 220 GHz
• search for the all-optical switch, The
• Who's who at NASA: Dr. Yoseph Bar-Cohen, senior research scientist, nondestructive evaluation (NDE) group, Jet Propulsion Laboratory
• Software for processing serial cross sections into 3D images
• Molten-carbonate electrolyzers for making CO and O(2)
• Reader forum
• Robotic surgery spans an ocean
• Software performs testing, monitoring, and control functions
• Computer program generates test cases
• Integrated environmental monitoring instrument
• Algorithm for optimizing designs of diffractive optics
• Improved micromachined vaporizing-liquid microthruster
• Breathing-air and cooling apparatus for protective suit
• MSC's "clean" meshing solution
  by Ross, Steven S
• NASA tech briefs goes digital
• Software for ground operations for a prototype Mars rover
• Enhanced optical microresonators for detecting molecules