Briefs: Information Technology

A method has been developed of computing bounds on the performance of a code comprised of two linear binary codes generated by two encoders serially concatenated through an...

Briefs: Information Technology
Mission Reliability Estimation for Repairable Robot Teams

A mission reliability estimation method has been designed to translate mission requirements into choices of robot modules in order to configure a multi-robot team to have high reliability at minimal cost. In order to build cost- effective robot teams for long-term missions, one must be...

Briefs: Information Technology
Algorithm for Stabilizing a POD-Based Dynamical System

This algorithm provides a new way to improve the accuracy and asymptotic behavior of a low-dimensional system based on the proper orthogonal decomposition (POD). Given a data set representing the evolution of a system of partial differential equations (PDEs), such as the Navier-Stokes...

Briefs: Information Technology
Parameterizing Coefficients of a POD-Based Dynamical System

A method of parameterizing the coefficients of a dynamical system based of a proper orthogonal decomposition (POD) representing the flow dynamics of a viscous fluid has been introduced. (A brief description of POD is presented in the immediately preceding article.) The present...

Briefs: Information Technology
Confidence-Based Feature Acquisition

Confidence-based Feature Acquisition (CFA) is a novel, supervised learning method for acquiring missing feature values when there is missing data at both training (learning) and test (deployment) time. To train a machine learning classifier, data is encoded with a series of input features describing each...

Briefs: Information Technology

A recently developed algorithm for demodulation and decoding of a pulse-position-modulation (PPM) signal is suitable as a basis for designing a single hardware decoding apparatus to be capable of...

Briefs: Information Technology
Metal Vapor Arcing Risk Assessment Tool

The Tin Whisker Metal Vapor Arcing Risk Assessment Tool has been designed to evaluate the risk of metal vapor arcing and to help facilitate a decision toward a researched risk disposition. Users can evaluate a system without having to open up the hardware. This process allows for investigating components...

Briefs: Manufacturing & Prototyping

A two-fluid accumulator has been designed, built, and demonstrated to provide an acceptably close approximation to constant differential static pressure between two fluids over the full...

Products: Energy

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...

Briefs: Energy

A new thermoelectric power generator from Johnson Space Center consists of an oven box and a solar cooker/solar reflector unit. The solar reflector concentrates sunlight into heat and...

Briefs: Energy

NASA’s Jet Propulsion Laboratory has proposed a scheme for generating electric power from rivers and from ocean currents, tides, and waves that not entail the high maintenance...

Briefs: Green Design & Manufacturing
Nitrous Oxide/Paraffin Hybrid Rocket Engines

Nitrous oxide/paraffin (N2OP) hybrid rocket engines have been invented as alternatives to other rocket engines — especially those that burn granular, rubbery solid fuels consisting largely of hydroxyl-terminated polybutadiene (HTPB). Originally intended for use in launching spacecraft,...

Application Briefs: Robotics, Automation & Control
High-Flex
Cables Cicoil Corp.
Valencia, CA 661-295-1295
www.cicoil.com

Cicoil has provided a custom-formed high-flex cable to the Mars Science...

Application Briefs: Aerospace
TTEthernet
TTTech North America
Carlsbad, CA
760-603-9393
www.tttech.com

TTEthernet, a high-bandwidth databus developed by TTTech and Honeywell, will...

Articles: Automotive

The automotive industry has faced hardships in recent times, but it can and will survive by renewing itself through innovation. After enduring a $14.6 billion loss in 2008, Ford...

Who's Who: Sensors/Data Acquisition

Dr. Gary Hunter, who joined NASA in 1990, is an expert in the design, fabrication, and testing of sensors, especially...

Podcasts
Dr. Gary Hunter, Intelligence Systems Hardware Lead and Technical Lead of Chemical Sensors, Sensors and Electronics Branch

Dr. Gary Hunter, who joined NASA in 1990, is an expert in the design, fabrication, and testing of sensors, especially chemical species gas sensors. In 1995 and 2005, he led the development of sensor systems that won...

Products

Hewlett-Packard, Palo Alto, CA, has introduced the HP Z200 workstation computer for engineers and designers using CAD software. Also introduced are two monitors: the HP ZR22w and HP ZR24w Performance Displays. The HP Z200 offers...

NASA Tech Needs: Mechanical & Fluid Systems
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....

Techs for License
PicoEndo Tethered Endoscope

Stevrin & Partners

The PicoEndo endoscope is the smallest tethered endoscope in the world (4.5mm × 12.0mm). It is also inexpensive enough to use and discard. The PicoEndo system is applicable to medical tasks such as photographing the surface of the esophagus, and to applications in any industry that needs...

Techs for License
Flat-Plate Lens Achieves Negative Refraction at 100-nm Resolution

AIST Innovations

Experiments with holograms have led to a thin-film flat-plate lens that has a periodic (layered) structure and that is capable of a resolution of 100 nm or finer. The flat lens provides excellent image-forming characteristics by the incidence of light...

Tech Needs
Technology for Drilling/Cutting/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 sawing, drilling, boring, or other cutting methods, the new method should be faster and easier; provide a cleaner cut...

Tech Needs
Near-Field UHF RFID Systems

A company seeks a near-field ultra-high-frequency (UHF) RFID system solution that can communicate in near-field while keeping the field region localized so that far-field talks can be suppressed. A new near-field UHF RFID reader antenna is sought that has strong magnetic near-field, but small far-field gain and beam...

Briefs: Imaging

The Electrical Capacitance Volume Tomography (ECVT) system has been designed to complement the tools created to sense the presence of water in nonconductive spacecraft...

Briefs: Imaging

A machine-vision system capable of detecting obstacles large enough to damage or trap a robotic vehicle is undergoing development. The system includes (1) a pattern generator that...

Briefs: Physical Sciences
Wavefront Control and Image Restoration With Less Computing

PseudoDiversity is a method of recovering the wavefront in a sparse- or segmented-aperture optical system typified by an interferometer or a telescope equipped with an adaptive primary mirror consisting of controllably slightly moveable segments. (PseudoDiversity should not be confused...

Articles: Robotics, Automation & Control

From industrial panel PCs, to open-platform graphic operator interface terminals (OITs), to microOITs, to human-machine interfaces (HMIs), there are many...

Application Briefs: Imaging

People whose bodies cannot produce effective or sufficient insulin are said to have diabetes. This chronic disease has several serious long-term effects that are well documented:...

Briefs: Imaging
Wide-Field-of-View, High-Resolution, Stereoscopic Imager

A device combines video feeds from multiple cameras to provide wide-field-of-view, high-resolution, stereoscopic video to the user. The prototype under development consists of two camera assemblies, one for each eye. One of these assemblies incorporates a mounting structure with multiple...

Webcasts

Upcoming Webinars: Automotive

The Art of EV Propulsion System Design

Upcoming Webinars: Automotive

Solutions for Automotive Interior Colors

Upcoming Webinars: Automotive

Latest Enhancements for ADAS Sensor Testing and Simulation

Upcoming Webinars: Automotive

Adhesives and the Future of Battery Designs

Upcoming Webinars: Manufacturing & Prototyping

Using High-Resolution X-ray Computed Tomography to Inspect...

Upcoming Webinars: Automotive

Digital Solutions to Design Vehicles for Noise and Vibration

Videos