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Space Optical Communications Using Laser Beams
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Tech Needs of the Week

Wanted: Coating Solutions for UV Applications A cost-efficient anti-graffiti coating solution is needed for application to flexible PVC film. The coating should add a flexible transparent layer with specific properties: scratch & UV resistant, stable physical behavior between -30 degrees and 90 degrees Celsius, and resistant to solvents and alcohols used for graffiti cleaning. To respond to this Tech Need visit click here.

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NASA News

NASA Spacecraft Zaps Venus with a Laser On June 5, NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft flew past Venus just 338 km above the planet's surface and shot a laser into the clouds. Although MESSENGER is on a mission to Mercury, the spacecraft must pass by Venus for a gravity assist en route. In passing, researchers hope to learn a few things about the planet with sulfuric acid clouds, a choking carbon dioxide atmosphere, and a surface hot enough to melt lead.

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SMP vs. AMP: How Homogenous Is Your Embedded System?

Multiprocessing system architectures come in all shapes and sizes, so it is dangerous to make any generalizations. But perhaps there’s agreement that most systems can be classified as either symmetric multiprocessing (SMP) or asymmetric multiprocessing (AMP).

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Secure Partitioning Safeguards Real-time Performance

High performance multi-core processors are providing opportunities to consolidate multiple applications into a single system. However, embedded applications often have real-time requirements that cannot be put in jeopardy by other software clamoring for the same system resources such as CPU cycles and memory.

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Navy Remote Sensing



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Visualization Tools Aid Multi-core Development

Multi-core processing is a “disruptive technology”, transforming the way embedded systems are architected, developed, and debugged. With greatly improved performance and lower power, multi-core processors have caught the attention of designers who don’t think twice about putting two, four, or even eight processor cores into a system. But many software developers are playing catch up, working hard to quickly parallelize code. They are finding traditional debug methods aren’t sufficient to profile the complex interactions between concurrently running tasks. “In a system with interacting applications running simultaneously on multiple processor cores, breakpoints have reduced applicability as a tool for understanding system behavior,” says Rob McCammon, Director of Advanced Technology Planning at Wind River Systems.

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Sensor Spinoff



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