Briefs: Electronics & Computers

A spatio-temporal equalizer has been conceived as an improved means of suppressing multipath effects in the reception of aeronautical telemetry signals, and may be adaptable to...

Briefs: Electronics & Computers
Lunar Dust-Tolerant Electrical Connector

An electrical connector was developed that is tolerant of the presence of lunar dust. Novel features of the connector include the use of a permeable membrane to act both as a dust barrier and as a wiper to limit the amount of dust that makes its way into the internal chamber of the connector. The...

Briefs: Electronics & Computers

Nanoionics-based devices have shown promise as alternatives to microelectro-mechanical systems (MEMS) and semiconductor diode devices for switching radio-frequency (RF) signals in...

Techs for License
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...

Techs for License
Low-Cost “Green” Coatings Modify Metal Surfaces

GreenKote

Greenkote coating technology is a coating method for steel and other metals that can replace a range of existing coating methods. The coating is environmentally friendly, and it is applicable to a range of base materials. In the process, parts are introduced to a rotating...

Tech Needs
Technology for Drilling, Cutting, and Separating Materials

A company seeks alternative methods for sawing, drilling, boring, cutting, or otherwise separating materials such as wood, metal, and composites. When compared to conventional methods, the new technology should be faster, easier, provide a cleaner cut in terms of smoothness and dust in...

Tech Needs
Improving Thermoplastic Performance Using Additives and Reinforcers

A company seeks to improve the performance properties of polyolefins, polyethylenes, and thermoplastics. Additives, ingredients, fillers, modifiers, agents, and other methods are all of interest. Properties of interest include lighter weight, higer modulus, increased tensile...

NASA Tech Needs

John C. Stennis Space Center provides rocket engine propulsion testing for the NASA space programs. Since the development of the Space Shuttle, every Space Shuttle Main Engine...

Briefs: Information Technology
ICER-3D Hyperspectral Image Compression Software

Software has been developed to implement the ICER-3D algorithm. ICER-3D effects progressive, threedimensional (3D), wavelet-based compression of hyperspectral images. If a compressed data stream is truncated, the progressive nature of the algorithm enables reconstruction of hyperspectral data at...

Briefs: Information Technology
Context Modeler for Wavelet Compression of Spectral Hyperspectral Images

A context-modeling subalgorithm has been developed as part of an algorithm that effects three-dimensional (3D) wavelet-based compression of hyperspectral image data. The context-modeling subalgorithm, hereafter denoted the context modeler, provides estimates of probability...

Briefs: Manufacturing & Prototyping

Two concepts that could be applied separately or together have been suggested to enhance the utility of deployable truss structures. The concepts were intended originally for application to a truss...

Briefs: Manufacturing & Prototyping
Use of Nanofibers to Strengthen Hydrogels of Silica, Other Oxides, and Aerogels

Research has shown that including up to 5 percent w/w carbon nanofibers in a silica backbone of polymer crosslinked aerogels improves its strength, tripling compressive modulus and increasing tensile stress-at-break fivefold with no increase in density or decrease in...

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...

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...

Briefs: Materials
Improved Low-Temperature Performance of Li-Ion Cells Using New Electrolytes

As part of the continuing efforts to develop advanced electrolytes to improve the performance of lithiumion cells, especially at low temperatures, a number of electrolyte formulations have been developed that result in improved low-temperature performance (down to –60...

Briefs: Physical Sciences

White-light phase-conjugate mirrors would be incorporated into some optical systems, according to a proposal, as means of correcting for wavefront distortions caused by...

Briefs: Physical Sciences
Biasable, Balanced, Fundamental Submillimeter Monolithic Membrane Mixer

This device is a biasable, submillimeter-wave, balanced mixer fabricated using JPL’s monolithic membrane process — a simplified version of planar membrane technology. The primary target application is instrumentation used for analysis of atmospheric constituents,...

Briefs: Physical Sciences
Integrity Monitoring of Mercury Discharge Lamps

Mercury discharge lamps are critical in many trapped ion frequency standard applications. An integrity monitoring system can be implemented using end-of-life signatures observed in operational mercury discharge lamps, making it possible to forecast imminent failure and to take action to mitigate...

Briefs: Information Technology

A methodology and software to implement the methodology are under development in an effort to automate at least part of the process of designing integrated-circuit (IC) chips that...

News: Green Design & Manufacturing

The first computer modeling study to simulate the impact of white roofs on urban areas worldwide - led by scientists at the National Center for Atmospheric Research (NCAR) in Boulder, CO -...

Who's Who: RF & Microwave Electronics

Dr. Robert Romanofsky has over 75 publications and holds five patents in the fields of microwave device technology, high-temperature superconductivity, and the use of...

Podcasts
Robert Romanofsky, Senior Scientist, Antenna and Optical Systems Branch

Dr. Robert Romanofsky has over 75 publications and holds five patents in the fields of microwave device technology, high-temperature superconductivity, and the use of thin ferroelectric films in microwave applications. A recipient of NASA’s Exceptional Service Medal,...

Products

The new Manlight ML1550-PL-R-OEM mini laser transmitter for LIDAR, telemetry, or range finding applications has a compact size of 90mm x 70mm x 15mm. The pulsed fiber laser provides short to ultra short...

Products

Nextreme has integrated its OptoCooler UPF4 thermoelectric cooler into Voxtel’s VDHAX line of hermetically-packaged avalanche photodiode (APD) receivers. The OptoCooler-equipped APD device will be...

Products

The ICI 7320 infrared camera operates on 1 watt of power via USB connection. IR Flash software provides real time radiometric data stream directly to a hard drive or portable device. The camera can be...

Articles: Motion Control

Modern industrial machines rely on fast, accurate motion control in order to achieve high product quality and productivity, as measurement errors can lead to increased scrap...

Articles: Motion Control

Increasingly competitive markets make efficient and accurate processes more critical than ever before. To meet the demands of manufacturers, machine builders...

Articles: Robotics, Automation & Control

In 1938, General Electric began producing a two-phase synchronous induction motor which, at 60 Hz, ran at 75 RPM. The low speed resulted from using a different number of rotors to stator poles or teeth, which...

Articles: Robotics, Automation & Control

The economic realities of the industrial marketplace are driving machine builders and integrators to get creative and build more intelligence into their machines in order to increase...

Videos