Stories
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Briefs: Software
Trajectory Optimization: OTIS 4
The latest release of the Optimal Trajectories by Implicit Simulation (OTIS4) allows users to simulate and optimize aerospace vehicle trajectories. With OTIS4, one can seamlessly generate optimal trajectories and parametric vehicle designs simultaneously. New features also allow OTIS4 to solve non-aerospace...
Briefs: Software
Computer Software Configuration Item-Specific Flight Software Image Transfer Script Generator
A K-shell UNIX script enables the International Space Station (ISS) Flight Control Team (FCT) operators in NASA’s Mission Control Center (MCC) in Houston to transfer an entire or partial computer software configuration item (CSCI) from a flight software...
Briefs: Information Technology
Efficient Bit-to-Symbol Likelihood Mappings
This innovation is an efficient algorithm designed to perform bit-to-symbol and symbol-to-bit likelihood mappings that represent a significant portion of the complexity of an error-correction code decoder for high-order constellations. Recent implementation of the algorithm in hardware has yielded an...
Briefs: Information Technology
NASA’s planetary missions have collected, and continue to collect, massive volumes of orbital imagery. The volume is such that it is difficult to manually review all of the data...
Briefs: Information Technology
Some non-traditional signal constellations have been proposed for transmission of data over the Additive White Gaussian Noise (AWGN) channel using such channel-capacity-approaching codes as low-density...
Products: Energy
New large cell prismatic electrochemical double layer capacitors (EDLC) from Ioxus (Oneonta, NY) are for transportation and utility applications and are lower in cost for the overall system design. The...
News: Energy
Scientists have discovered the world’s smallest superconductor - a sheet of four pairs of molecules less than one nanometer wide. The Ohio University-led study provides the first evidence that...
Articles: Energy
Keeping pace with emerging solid-state lighting (SSL) applications can be difficult for design engineers, not only from an end-product standpoint, but at the component level as well. Design...
News: Energy
A recent advance by Arizona State University researchers in developing nanowires could lead to more efficient photovoltaic cells as well as better LEDs. ASU electrical engineers are...
Articles: Lighting
It is in the headlines worldwide. Cities, states, and countries around the globe are transitioning away from traditional lighting and towards newer technologies such as high-power LEDs for...
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: Transportation
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: Information Technology
Processing Images of Craters for Spacecraft Navigation
A crater-detection algorithm has been conceived to enable automation of what, heretofore, have been manual processes for utilizing images of craters on a celestial body as landmarks for navigating a spacecraft flying near or landing on that body. The images are acquired by an electronic camera...
News: Lighting
The first issue of Lighting Technology has arrived! This digital magazine is the latest offering from Green Design & Manufacturing, and features articles, tech briefs, applications and more...
Articles: Green Design & Manufacturing
Fluorescent lamps are a popular lighting option for businesses and consumers that are looking for ways to conserve energy and cut down on...
Videos: Green Design & Manufacturing
RTI International developed a polymer nanofiber material with nanoscale properties that provides cost-effective management of visible light in a solid-state lighting device. This video shows prototypes of...
Briefs: Lighting
Luminescent materials were developed using aerosol processes, for making improved LED devices for solid-state lighting. In essence this means improving...
Briefs: Energy
Light Emitting Diode (LED) driver ICs associated with specific (uniquely operated) switching power supplies that optimize performance for High Brightness...
News: Energy
Smart meters – intelligent devices to measure consumption – make it possible to read and control power consumption, even of private households, while away from the property. New software shadows the...
News: Green Design & Manufacturing
A team of University of Wisconsin-Madison engineers has developed a highly efficient, environmentally friendly process that selectively converts gamma-valerolactone - a biomass...
Articles: Green Design & Manufacturing
Articles: Lighting
Understanding how LEDs work and what materials are used for ideal operation in various spectral ranges will aid in selecting the right color and ideal wavelengths for a variety of...
Articles: Lighting
We normally think of ‘white’ light as being comprised of all wavelengths in the visible spectrum, or at least of being comprised of red, green, and blue. However, white LEDs emit...
Articles: Lighting
Two overriding issues should be considered when driving high-brightness (HB) LEDs. The first is to ensure that a fairly constant current is available with minimal variation, since a...
Products: Lighting
The PIL300U-V Series LED power modules from Power Partners, Hudson, MA, provide 300W of output power from a 90-305VAC input range. The PIL300U-V design incorporates high PFC, meeting the requirements for EN61000-3-2....
Products: Lighting
EXFO's Life Sciences & Industrial Division, Mississauga, ON, Canada, introduces the OmniCure® LX400 UV LED Spot Curing System. The system is able to control up to four UV LED heads simultaneously with a single...
Products: Lighting
The Jaz™ Modular Measuring Suite from Ocean Optics, Dunedin, FL, is now available for radiometric analysis of LEDs, flat panel displays, lamps, and other radiant sources. The Jaz Light Meter is a pre-configured,...
Products: Lighting
The ORBEOS panel from OSRAM Opto Semiconductors, San Jose, CA, has a round lamp surface of 80mm diameter, is 2.1mm thick, and weighs 24g. With an efficiency of 25lm/W, the panel beats that of conventional halogen lamps. Its warm...
Products: Lighting
QuasarBrite™ UV LEDs from Lumex, Palatine, IL, are available in 385nm, 405nm, and 415nm wavelengths at 4-6mW in through-hole format. A robust TO-46 package with a glass lens provides a lifespan of more than 50,000 hours. QuasarBrite...
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