Home

Advances in Vision-Aided Navigation Keep Soldiers on Track

Eric Bickford, U.S. Army CERDEC engineer, compares the current prototype vision-aided navigation system with a 3-D rendition of a planned smaller, more soldier-wearable system. CERDEC engineers are analyzing the systems as a possible emerging and alternative navigation technologies for future combat operations. (Photo: U.S. Army RDECOM) The Army Materiel Command’s Communications-Electronics Research, Development and Engineering Center, or CERDEC, is using miniature cameras to create vision-aided navigation capabilities in GPS-denied situations.

Posted in: News

Read More >>

Acrylate-Based Specialty Optical Fiber Coatings for Harsh Environments

Applications of optical fibers at high temperatures and in harsh environments demand coatings sustainable under those conditions. The goal of this work was to evaluate thermal and environmental stability of a series of commercially available and in-house formulated acrylate-based coatings. Dual and single-coat fiber designs were tested. The individual formulations included non-urethane and urethane acrylates, silicone acrylates and an organic-inorganic hybrid acrylate. The “as drawn” fibers were tested for attenuation, mechanical reliability, microbend sensitivity, delamination resistance and coating stripability. Thermogravimetric analysis (TGA) was used for estimating the use temperature of the coatings. In addition, the fibers were exposed to harsh environments, including dry aging in air (150°C) and in nitrogen (250°C), autoclaving, immersion in high pressure/temperature water (up to 200°C and 2000 psi) and immersion in a hot cable gel (160°C). Based on the obtained results, the best formulations were ranked for suitability in different types of fiber application.

Posted in: White Papers, Aeronautics, Defense, Optics, Photonics

Read More >>

Thermal Management: Heat Pipes, HiKTM Plates, and Vapor Chambers – Selection and Modeling

Heat pipes, high conductivity (HiK™) plates, and vapor chambers are two phase technologies that are often considered for electronics cooling.  All three devices rely on the very high evaporation and condensation coefficients of two phase fluids to reduce the ΔT between the source and the sink for a given power.  When properly engineered for power and mission duration, all of these devices provide passive, reliable cooling.

Posted in: On-Demand Webinars

Read More >>

Keysight Technologies Engineering Education and Research Resources DVD 2016

Keysight is enabling the next generation of engineers to tackle and solve the toughest electronic design and test challenges. With 200 new items in areas relating to education and research (Software Design & Simulation Solutions; Communications Technology; Test & Measurement Science; Nanotechnology & Material Measurement; Power, Energy & Automotive; and Classroom Applications), it includes application notes, white papers, case studies, videos, webcasts, and details on various Keysight solutions. Order your DVD today!    

Posted in: White Papers, Electronics & Computers, RF & Microwave Electronics, Test & Measurement

Read More >>

Qormino™ - Complex Embedded Design Made Quick, Easy, and Enduring

Qormino™ is an ultra-compact, 64-bit multi-core, NXP QorIQ™ processor based module integrating DDR SDRAMs for high performance, communication intensive applications. Designed to aid fast time to market, it solves the thorny problem of premature product obsolescence. Thankfully, Qormino is supplied from e2v’s SLiM™ expert inventory management program, offering prolonged supply up to 15 years. Embedded designs based on Qormino are guaranteed an extended time-in-market.

Posted in: White Papers, Aerospace, Defense, Electronics & Computers

Read More >>

Technical Webinar Series from the Editors of SAE: Next-Generation Advanced Combustion/Aftertreatment

In Conjunction with SAE The proven, reliable, and still low-cost internal-combustion engine continues to evolve to meet more stringent global vehicle emission and fuel economy regulations, driven by ongoing technology developments by OEMs, engineering consultancies, national labs, and research universities.

Posted in: On-Demand Webinars

Read More >>

Evaluation of Platelet Aggregation on Commonly-Used Blood-Contacting Medical Polymers

The blood compatibility of polymers used for medical devices which facilitate the movement or storage of blood is critical, particularly in devices whose applications where device-contacting blood will be re-introduced into a patient (dialyzer housings, storage vessels, IV components, etc.). Standard biocompatibility testing conducted in accordance with the ISO 10993 series of standards for these materials includes various tests for hemocompatibility1, including platelet interactions, but direct microscopic examination of platelet adhesion and activation is less common. This white paper presents the results of a scanning electron microscopic (SEM) examination of human platelet adhesion on polymeric materials, which shows that CYROLITE® materials may be less likely to aggregate and activate platelets than some other commonly-used blood-contacting materials.

Posted in: MDB, White Papers, White Papers, Medical

Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.