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Briefs: Materials
Fabricating Copper Nanotubes by Electrodeposition
Copper tubes having diameters between about 100 and about 200 nm have been fabricated by electrodeposition of copper into the pores of alumina nanopore membranes. Copper nanotubes are under consideration as alternatives to copper nanorods and nanowires for applications involving thermal and/or...
Briefs: Materials
The use of hybridized carbon/silicon carbide (C/SiC) fabric to reinforce ceramic matrix composite face sheets and the integration of such face sheets with a foam...
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Briefs: Mechanical & Fluid Systems
Some simple structural modifications have been demonstrated to be effective in reducing aerodynamic drag on vehicles that have empty open cargo bays. The modifications were originally...
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Briefs: Mechanical & Fluid Systems
The term “rotary percussive autogopher” denotes a proposed addition to a family of apparatuses, based on ultrasonic/sonic drill corers (USDCs), that have been described in...
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Briefs: Mechanical & Fluid Systems
Thermostatic Valves Containing Silicone-Oil Actuators
Flow-splitting and flow-mixing thermally actuated spool valves have been developed for controlling flows of a heat-transfer fluid in a temperature-regulation system aboard the Mars Science Laboratory (MSL) rover. Valves like these could also be useful in terrestrial temperature-regulation...
Application Briefs: Photonics/Optics
Assembly Machines Produce Optics for NASA’s NuSTAR Telescope
Cylindrical optics module assembly machines ABTech Swanzey, NH 603-358-6431 www.abtechmfg.com ABTech has completed the first of two cylindrical optics module assembly machines for Columbia University’s Nevis Astrophysics Laboratory. The multi-axis air bearing machine platforms are...
Application Briefs: Sensors/Data Acquisition
CCD Imaging Sensors Aid Hubble in Exploring the Universe
Charge coupled device (CCD) imaging sensors e2v Chelmsford, UK 44 (0)1245 493493 www.e2v.com e2v CCD imaging sensors were launched recently on the Space Shuttle Atlantis as part of a mission to upgrade and repair the Hubble Space Telescope. The imaging sensors equip the Wide Field Camera 3...
NASA Tech Needs
John C. Stennis Space Center is embarking on a very ambitious era in its rocket engine propulsion test history. The first new large rocket engine test stand to be built at Stennis Space Center in...
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Techs for License
Fluorinated ZDDP Improves Mileage and Reduces Engine Wear
This technology takes ZDDP — Zinc Dialkyl Dithiophos - phate, an anti-wear oil additive — and enhances it by adding fluorine to the chemical backbone. The resulting new molecule improves engine fuel economy by 3%, reduces engine wear from that available with conventional ZDDP, and...
Techs for License: Imaging
Real-Time Dogfight Guiding System
Successful performance of BFM (Basic Flight Maneuvers) presents the greatest challenge facing combat pilots. Acquiring and maintaining the required skills for dogfights is a long, complicated and costly process. The solution is a system that provides automatic assessment of a situation and automatic recommendation...
Articles: Robotics, Automation & Control
Today’s pumps, valves, and flow meters are being designed with greater accuracy and flexibility to handle a wide range of fluids, chemicals, and other materials. Demands for more...
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Briefs: Mechanical & Fluid Systems
Modular exploratory robotic vehicles that will be able to reconfigure themselves in the field are undergoing development. These vehicles at the initial concept stage were described in...
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Tech Needs
Anchoring Technology to Hold an Active Ingredient Within a Targeted Depth of Soil
A company seeks technologies that enhance the duration that herbicides, insecticides, fungicides, and similar products are held at a targeted depth within the top layers of soil. Duration should be between 30 and 60 days. The targeted depth varies with the crop plant,...
Briefs: Materials
Cyclic Oxidation Behavior of CuCrAl Cold-Sprayed Coatings for Reusable Launch Vehicles
The next generation of reusable launch vehicles is likely to use GRCop-84 [Cu-8(at.%)Cr-4%Nb] copper alloy combustion liners. The application of protective coatings on GRCop-84 liners can minimize or eliminate many of the environmental problems experienced by...
Briefs: Materials
Ceramic Fiber Structures for Cryogenic Load-Bearing Applications
This invention is intended for use as a load-bearing device under cryogenic temperatures and/or abrasive conditions (i.e., during missions to the Moon). The innovation consists of small-diameter, ceramic fibers that are woven or braided into devices like ropes, belts, tracks, or...
Briefs: Materials
Elastomer Reinforced With Carbon Nanotubes
Elastomers are reinforced with functionalized, single-walled carbon nanotubes (SWNTs) giving them high- breaking strain levels and low densities. Cross-linked elastomers are prepared using amine-terminated, poly(dimethylsiloxane) (PDMS), with an average molecular weight of 5,000 daltons, and a...
Tech Needs
Dissolvable Paper/Packaging Material
A company is searching for a disruptive technology relating to dispersible packaging materials. The material should easily dissolve in cold water and be 100% biodegradable in a short space of time, without compromising the strength and performance of the material for its given application. While paper-based...
Briefs: Materials
Improving Heat Flux Performance of Flat Surface in Spray-Cooling Systems
A method has been developed for improving heat flux performance relative to flat surfaces in spray-cooling systems. Similar enhancement techniques have been used for convective heat transfer, but, to the best knowledge at the time of this reporting, never spray cooling of...
Briefs: Materials
Treating Fibrous Insulation To Reduce Thermal Conductivity
A chemical treatment reduces the convective and radiative contributions to the effective thermal conductivity of porous fibrous thermal-insulation tile. The net effect of the treatment is to coat the surfaces of fibers with a mixture of transition-metal oxides (TMOs) without filling the...
Briefs: Materials
Silica-Aerogel Composites Opacified With La0.7Sr0.3MnO3
As part of an effort to develop improved lightweight thermal-insulation tiles to withstand temperatures up to 1,000 °C, silica aerogel/fused-quartz- fiber composite materials containing La0.7Sr0.3MnO3 particles as opacifiers have been investigated as potentially offering thermal...
Briefs: Materials
Biologically Inspired Purification and Dispersion of SWCNTs
A biologically inspired method has been developed for (1) separating single-wall carbon nanotubes (SWCNTs) from other materials (principally, amorphous carbon and metal catalysts) in raw production batches and (2) dispersing the SWCNTs as individual particles (in contradistinction to ropes...
Who's Who: Aerospace
Allen Parker is a systems engineer with expertise in the areas of fiber optics and data acquisition. He is currently part of the team that...
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Briefs: Materials
Quantifying Airborne Hydrogen in Nearly Real Time
An indirect method of measuring small concentrations of hydrogen gas in air in nearly real time has been devised to circumvent the difficulty of performing such measurements directly. In this method, a sample of air suspected of containing hydrogen is first enclosed in a suitable container, and its...
Briefs: Physical Sciences
A Technique for Adjusting Eigenfrequencies of WGM Resonators
A simple technique has been devised for making small, permanent changes in the eigenfrequencies (resonance frequencies) of whispering-gallery-mode (WGM) dielectric optical resonators that have high values of the resonance quality factor (Q). The essence of the technique is to coat the...
Briefs: Physical Sciences
A small mass spectrometer utilizing a miniature field ionization source is now undergoing development. It is designed for use in a variety of applications in which there are requirements for a...
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Briefs: Physical Sciences
Modifying Operating Cycles To Increase Stability in a LITS
The short-term instability in the frequency of a linear-ion-trap frequency standard (LITS) can be reduced by modifying two cycles involved in its operation: (1) the bimodal (bright/dim) cycle of a plasma discharge lamp used for state preparation and detection and (2) a...
Briefs: Physical Sciences
An apparatus for simulating the environment at the surface of Mars has been developed. Within the apparatus, the pressure, gas composition, and temperature of the atmosphere; the...
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Briefs: Information Technology
Algorithm for Detecting a Bright Spot in an Image
An algorithm processes the pixel intensities of a digitized image to detect and locate a circular bright spot, the approximate size of which is known in advance. The algorithm is used to find images of the Sun in cameras aboard the Mars Exploration Rovers. (The images are used in estimating...
Briefs: Information Technology
Extreme Programming: Maestro Style
“Extreme Programming: Maestro Style” is the name of a computer-programming methodology that has evolved as a custom version of a methodology, called “extreme programming” that has been practiced in the software industry since the late 1990s. The name of this version reflects its origin in the work of the...

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