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Printer Peril

A study by scientists at the Queensland University of Technology in Australia has determined that some laser printers used in offices and homes release tiny particles of toner-like material into the air that people can inhale deep into their lungs, where they may pose a health hazard.

The study team classified 17 out of 62...

INSIDER: Electronics & Computers
Cyber-Training Today’s Fighting Forces

Dramatic changes are taking place in the way U.S. service men and women prepare for their assignments. Since 9/11, the U.S. Department of Defense (DoD) is moving from a training cycle in which...

INSIDER: Electronics & Computers
Embedded Development and the .NET Micro Framework

The scenario:

You’ve been assigned the task of designing and producing an embedded device. You’ve been given time, cost and size constraints that impact your design. An initial analysis of the requirements leads you to the conclusion that a 32-bit processor with a relatively small...

Blog
Create the Future

Your unique invention could win you $20,000 or other great prizes in the 2007 Create the Future Design Contest, presented by SolidWorks Corp. and NASA Tech Briefs. Innovative design ideas are being accepted in six categories: Machinery, Equipment, and Component Technology; Consumer Products; Medical; Safety and Security;...

Blog
Coming Attractions

SolidWorks® 2008 3D CAD software from SolidWorks Corp. (Concord, MA) has been named NASA Tech Briefs' Product of the Month for August. The latest version of the software features a new user interface and 3D graphics, an enhancement of the SolidWorks Intelligent Feature Technology (SWIFT), and advanced design analysis...

Blog
Tech Needs of the Week

A company seeks a material that will be used to transmissive-polarize 630-nanometer LED emissions. The material will be cut into flat disks no thicker than 2 mm. Diameters range from 9 mm to 72 mm. Temperature ranges are from -40 to 125 degrees Celsius for operation and -55 to 150 degrees Celsius for storage. Click here to...

Blog
New! Digital Design Center

NASA Tech Briefs has launched the Digital Design Center, sponsored by Autodesk, that provides a one-stop source for the latest information on digital prototyping, simulation, and analysis tools to help designers and engineers design better products faster.

The site features CAD and CAE software news, design and...

Excerpts
Better Be Running! Tools to Drive Design Success (part 1)

This is the first in a series of excerpts from "Better Be Running! Tools to Drive Design Success" by Dr. Ronald Hollis, President, CEO, and Co-founder of Quickparts.com (Atlanta, GA). Written for business managers, the book focuses on manufacturing processes, tooling choices, and...

The production of many electronic devices begins with wafer processing. In addition to complementary metal oxide semiconductor (CMOS) integrated circuits (ICs), this can include such diverse...

Presto Imaging Software
Inmagic
Woburn, MA
781-287-6277
www.inmagic.com

With every space shuttle mission, hundreds of individuals across NASA...

MSC Nastran and MSC Adams Enterprise
Simulation Software
MSC.Software Corp.
Santa Ana, CA
714-540-8900
www.mscsoftware.com...

Theoretical analysis and some experiments have demonstrated that silicon-on-insulator (SOI) 4-gate transistors of the type known as G4FETs could be efficiently...

Briefs: Electronics & Computers
Radiation-Tolerant Dual Data Bus

An architecture, and a method of utilizing the architecture, have been proposed to enable error-free operation of a data bus that includes, and is connected to, commercial off-the-shelf (COTS) circuits and...

Briefs: Software
Program Merges SAR Data on Terrain and Vegetation Heights

X/P Merge is a computer program that estimates ground-surface elevations and vegetation heights from multiple sets of data acquired by the GeoSAR instrument [a terrain-mapping synthetic-aperture radar (SAR) system that operates in the X and P bands]. X/P Merge software combines data from...

Briefs: Information Technology
Two Algorithms for Processing Electronic Nose Data

Two algorithms for processing the digitized readings of electronic noses, and computer programs to implement the algorithms, have been devised in a continuing effort to increase the utility of electronic noses as means of identifying airborne compounds and measuring their concentrations. One...

Briefs: Software
General-Purpose Front End for Real-Time Data Processing

FRONTIER is a computer program that functions as a front end for any of a variety of other software of both the artificial intelligence (AI) and conventional data-processing types. As used here, "front end" signifies interface software needed for acquiring and preprocessing data and making...

Briefs: Semiconductors & ICs
Cumulative Timers for Microprocessors

It has been proposed to equip future microprocessors with electronic cumulative timers, for essentially the same reasons for which land vehicles are equipped with odometers (total-distance-traveled...

Briefs: Electronics & Computers
Nanocomposite Photoelectrochemical Cells

Improved, solid-state photoelectrochemical cells for converting solar radiation to electricity have been proposed. (In general, photoelectrochemical cells convert incident light to electricity through electrochemical reactions.) It is predicted that in comparison with state-of-the-art photoelectrochemical...

Whenever a data acquisition (DAQ) system is moved from the controlled environment of the laboratory to validation testing or the manufacturing floor,...

Briefs: Electronics & Computers
Ultracapacitor-Powered Cordless Drill

The figure depicts a portable, handheld power drill with its attached powersupply unit, in which ultracapacitors, rather than batteries, are used to store energy. This ultracapacitor-powered drill is a...

Photocatalytic/ magnetic composite particles have been invented as improved means of exploiting established methods of photocatalysis for removal of chemical and biological pollutants from air and...

A special double-wall container and a process for utilizing the container are being developed to enable (1) acquisition of a sample of material in a "dirty" environment that may...

The figure schematically depicts a system of electronic hardware and software that noninvasively tracks the direction of a person’s gaze in real time. Like prior commercial noninvasive...

Briefs: Medical
Detergent-Specific Membrane Protein Crystallization Screens

A suite of reagents has been developed for three-dimensional crystallization of integral membranes present in solution as protein-detergent complexes (PDCs). The compositions of these reagents have been determined in part by proximity to the phase boundaries (lower consolute boundaries)...

Railguns, which propel a projectile using electromagnetic forces instead of chemical explosions, promise to revolutionize projectile launchers. Such guns have...

Briefs: Physical Sciences
Plasmonic Antenna Coupling for QWIPs

In a proposed scheme for coupling light into a quantum-well infrared photodetector (QWIP), an antenna or an array of antennas made of a suitable metal would be fabricated on the face of what would...

Suits cooled by evaporation of water have been proposed as improved means of temporary protection against high temperatures near fires. When air temperature exceeds 600 °F (316 °C)...

Electronic tongue 2 (E-tongue 2) represents the second generation of the apparatus described in "Electronic Tongue for Quantitation of Contaminants in Water" (NPO-30601), NASA Tech...

Briefs: Information Technology
Improved Heat-Stress Algorithm

NASA Dryden presents an improved and automated site-specific algorithm for heat-stress approximation using standard atmospheric measurements routinely obtained from the Edwards Air Force Base weather...

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