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Briefs: Mechanical & Fluid Systems
The figure shows several aspects of an experimental robotic manipulator that includes a housing from which protrudes a tendril- or tentacle-like arm 1 cm thick and 1 m long. The arm consists of two...
Briefs: Mechanical & Fluid Systems
Foil Gas Thrust Bearings for High-Speed Turbomachinery
A methodology has been developed for the design and construction of simple foil thrust bearings intended for parametric performance testing and low marginal costs, supporting continued development of oil-free turbomachinery. A bearing backing plate is first machined and surface-ground to...
Articles: Energy
With auto sales down as much as 40 percent, it can feel to some like the industry is coming apart. But a "revolution in fasteners" may soon help bridge the gap to greener...
Articles: Green Design & Manufacturing
Industry and consumers are increasingly aware of the benefits of efficacious use of metered power, as costs and cost trends increase. Making the right choices...
Briefs: Mechanical & Fluid Systems
Long tool bits are undergoing development that can be stowed compactly until used as rock- or ground-penetrating probes actuated by ultrasonic/sonic mechanisms. These bits are...
Briefs: Mechanical & Fluid Systems
A compact, high-current, hollow cathode utilizing a lanthanum hexaboride (LaB6) thermionic electron emitter has been developed for use with high-power Hall thrusters and ion thrusters. LaB6cathodes are...
Briefs: Mechanical & Fluid Systems
This innovation has been developed to improve the resolutions of future spacebased active and passive microwave antennas for earth-science remote sensing...
Briefs: Mechanical & Fluid Systems
Rapid Active Sampling Package
A field-deployable, battery-powered Rapid Active Sampling Package (RASP), originally designed for sampling strong materials during lunar and planetary missions, shows strong utility for terrestrial geological use. The technology is proving to be simple and effective for sampling and processing materials of strength....
Briefs: Mechanical & Fluid Systems
Miniature Lightweight Ion Pump
This design offers a larger surface area for pumping of active gases and reduces the mass of the pump by eliminating the additional vacuum enclosure. There are three main components to this ion pump: the cathode and anode pumping elements assembly, the vacuum enclosure (made completely of titanium and used as the...
Products: Green Design & Manufacturing
Maxwell Technologies Inc. (San Diego, CA) has introduced its new K2 series large cell BOOSTCAP ultracapacitors. About the size of a soda can, the K2 series BOOSTCAP cells operate at 2.7 volts and incorporate design...
NASA Tech Needs: RF & Microwave Electronics
Developing a Commercial Nanoionics Switch for RF Applications
The Antenna and Optical Systems Branch at NASA’s Glenn Research Center is working on many innovations in nanotechnology for use in communications applications. One such emerging field of nanotechnology receiving significant attention for its promising results is nanoionics....
News: Transportation
A new PHEV traction drive power electronics system provides more power than typical freestanding portable generators, and can be used in emergency situations such as power outages and...
Techs for License: Mechanical & Fluid Systems
Positive-Locking Fastener
Phil-Lok Fastener
Most locking fastener systems use some sort of vibrationresistant method to prevent fastener loosening. The most common method is the lock washer, in use for over 100 years. Although lock washers will inhibit rotation of the nut by increasing friction, they do not provide a positive rotation stopping...
Briefs: Mechanical & Fluid Systems
Assemblies comprising multiple limited-height toroidal inflatable structures nested in a concentric arrangement have been invented to obtain more design flexibility than can be obtained in single...
Briefs: Mechanical & Fluid Systems
Investigating Dynamics of Eccentricity in Turbomachine
A methodology (and hardware and software to implement the methodology) has been developed as a means of investigating coupling between certain rotordynamic and hydrodynamic phenomena in turbomachines. Originally, the methodology was intended for application in an investigation of coupled...
INSIDER: Energy
Sandia National Laboratories will use $4.2 million in American Recovery and Reinvestment Act funds to modify and enhance its existing Battery Abuse Testing Laboratory (BATLab), with the...
Articles: Green Design & Manufacturing
DOE has prepared a Multi-Year Research, Development, and Demonstration Plan to provide hydrogen as a viable fuel for transportation after 2020, in order to reduce the consumption of...
INSIDER: Transportation
Chemical plants spend from 50 to 70 percent of their energy in "separations," which are usually distillation steps required to separate a raw material into various products. An...
Briefs: Mechanical & Fluid Systems
A proposed mobile robot, denoted the amorphous rover, would vary its own size and shape in order to traverse terrain by means of rolling and/or slithering action. The amorphous rover was conceived as a robust, lightweight...
Briefs: Mechanical & Fluid Systems
The space-frame antenna is a conceptual antenna structure that would be lightweight, deployable from compact stowage, and capable of deforming itself to a size, shape, and orientation required for a specific use. The...
Briefs: Mechanical & Fluid Systems
The space-frame lunar lander is a conceptual spacecraft or spacecraftlike system based largely on the same principles as those of the amorphous rover and the space-frame antenna described in the two immediately...
Briefs: Mechanical & Fluid Systems
Traditionally, infrared (IR) space instruments have been focused by iterating with a number of different thickness shim rings in a thermal vacuum chamber until the focus meets requirements. This...
Briefs: Mechanical & Fluid Systems
This actuator design allows the extension and contraction of turnbuckle assemblies. It can be operated manually or remotely, and is extremely compact. It is ideal for turnbuckles that are hard to reach by...
News: Energy
Engineering researchers from the University of Leeds have discovered how to recover significant quantities of rare-earth oxides, present in titanium dioxide minerals. Rare-earth oxides are useful...
News: Energy
Using nanotechnology, Stanford scientists are producing ultra-lightweight, bendable batteries and supercapacitors in the form of everyday paper. Coating a sheet of paper with ink made of carbon nanotubes...
News: Energy
Tel Aviv University researchers have found a novel way to control the atoms and molecules of peptides so that they "grow" to resemble small forests of grass. These "peptide...
News: Transportation
The Solar Impulse HB-SIA - the first airplane designed to fly day and night without fuel - left the ground yesterday for the first time. Recent results from ground tests had verified the...
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