Articles

Reinventing Disease Detection and Diagnosis

As devices for disease detection and diagnosis become more advanced, they also are becoming smaller. Next-generation technologies for faster detection of diseases such as cardiovascular disease, melanoma, and breast cancer are handheld devices that are easy to use, portable, and more accurate than many of the currently available diagnostic tools. As the following examples illustrate, immediate diagnosis and detection of life-threatening diseases may soon be held in the palm of your hand.

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Using Micro OTDRs to Test Fiber Optic Networks

Uses for traditional optical time domain reflectometers, or “OTDRs” include the certification and troubleshooting of very long-haul fiber optic networks such as campus and metro networks. In many LAN, WAN or FTTH environments, however, fiber links are relatively short and, therefore, usually operate over multimode fiber cables at wavelengths of 850nm and 1300nm. A new generation of “Micro OTDR” is ideally suited for this application, which typically has a maximum range of about 25 miles.

Posted in: Articles, ptb catchall

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Development of a Centrifugal Hydrogen Pipeline Gas Compressor

DOE has prepared a Multi-Year Research, Development, and Demonstration Plan to provide hydrogen as a viable fuel for transportation after 2020, and commissioned Concepts NREC (CN) with the project of developing a centrifugal hydrogen pipeline gas compressor. Phase I of this project has been completed and is described in this article.

Posted in: Features, Articles, Energy Efficiency, Government Initiatives, Alternative Fuels

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Laser-Sintering 3D Manufacturing Made Simple

Laser-sintering has evolved significantly since its commercial introduction in the 1980s. Born out of the rise of rapid prototyping technology, laser-sintering is now the design-driven catalyst for global innovation in such industries as aerospace, medical device design, automotive and consumer.

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CAD and Virtual Prototyping Software: Continuous Development in a Challenging Economy

In our annual poll of executives at leading design and virtual prototyping software companies, we found that in difficult economic times, providing customers with easy-to-use, value-added products is even more important. We asked executives to give their views on the importance of 2D to 3D, upfront simulation, and trends that will affect the software market in 2010.

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VITA 66 & 67 Bringing Fiber Optic and Mixed Signal Capability to VPX

Today’s rugged embedded computing industry demands the best of technology and reliability. Driven by requirements for higher performance solutions, platforms continually evolve. Standards organizations, such as the VSO (VMEbus Standards Organization), are diligently working to bring the technology for these solutions to the mainstream. The VSO’s VPX architecture, based on Tyco Electronics’ MULTIGIG RT2 backplane connector as qualified to the VITA 46.0 standard, is the latest technology to be applied to rugged embedded computing. In addition to dealing with escalating processing, power, and cooling requirements of leading edge solutions, the VSO is now addressing the need to realize high bandwidth and high fidelity transmission via alternative media — e.g. fiber optic and coaxial wave guides. This technology is crucial in realizing the full potential of today’s cutting edge C4ISR gear, including RF intensive radar, SIGINT and IED defeat gear, as well as systems benefiting from fiber optics, including secure, long distance and high data rate communications lines.

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The Inner Workings of Solid State Flash: SLC versus MLC

Because all solid state flash products are not created equal and flash storage is finding its way into more and more embedded computing applications, system designers should understand the critical tradeoffs between competing technologies when evaluating flash products. Most commonly, the endurance and reliability required in end-user applications help dictate the appropriate storage technology to use. Two well-known flash storage technologies, Single Level Cell (SLC) and Multi Level Cell (MLC), offer distinct advantages, depending on a user’s needs.

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