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Schematic of electrode process design: (a) Components mixing under ultrasonic irradiation, (b) an optical image of the as-fabricated electrode made of SiNP, SG and PAN, (c) the electrode after SHT, (d) Schematic of the atomic scale structure of the electrode. (Source: Nature Communications 6, article 8597). Current lithium-ion batteries normally use graphite anodes. Engineers at the University of Waterloo have found that silicon anode materials have a much higher capacity for lithium and are ...
  Future commercial hypersonic flight will require an orbiter stage which, after main engine cut-off, will enter a high-speed gliding flight phase and will be capable of attaining altitudes of 80 km and Mach numbers beyond Mach 20. This vehicle would travel long intercontinental distances within a very short time--flight times from Australia to Europe would take just 90 minutes, Europe to California no more than 60 minutes. A new kind of high-speed transport based on a two-stage Reusable La ...
Artist's impression of "Blue Wolf"   The range of underwater vehicles is limited by the amount of energy available for propulsion and the power required for a given underwater speed. Underwater propulsive power varies roughly with the cube of speed, and energy sources are practically limited by safety and certification requirements.   Currently, this means that for a given speed and range (endurance) envelope and a minimum volume for payloads and electronics, vehicle size is proporti ...
By announcing its HY4 four-seater aircraft, the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) is taking a big step towards making zero-emission commercial flying a reality.  Powered solely by a hydrogen fuel cell battery system the HY4 is aimed at demonstrating the feasibility of this technology for passenger aircraft. First fight is expected in the summer of 2016.   Researchers at the Stuttgart-based DLR Institute of Engineering Thermodynamics have deve ...
Powered by the Tobii EyeChip, an application-specific integrated circuit (ASIC) developed specifically for eye tracking, the new Tobii IS4 eye tracking module provides OEMs and integrators with a lightweight platform featuring near-infrared sensors, illuminators, EyeCore algorithms, Tobii’s proprietary middleware engine and a software development kit (SDK).  The sixth generation Tobii eye-tracking platform, IS4 is said to be the first to meet integration requirements for consumer devi ...
  In creating a laser weapon for military use the biggest challenges for researchers are: 1) creating a laser that can reach high enough power to partially destroy or disable a target; 2) tracking numerous target objects simultaneously and 3) propagating the laser efficiently and staying focused on the target even in difficult atmospheric conditions, such as that caused by dust or humidity.   Two different approaches are in contention in the race to develop working high-energy lasers ...
Raytheon has successfully fired its new Excalibur N5 projectile during a recent live guided flight test at Yuma Proving Ground, Ariz.  It was fired from a 5-inch naval gun during testing (shown, top photo). Excalibur N5 (bottom photo) is a 5-inch/127 mm naval variant of the projectile used by the U.S. Army, the U.S. Marine Corps and several international armies--Sweden, Canada, Australia and the Netherlands have selected Excalibur for their military services. The projectile uses a built-in ...
Silicon transistors have been made smaller year after year, but they are approaching a point of physical limitation. Continuing to shrink the size of the transistor – including the channels and contacts – without compromising performance has become a major technology hurdle..   Researchers have known that carbon nanotube (CNT) chips could provide an answer, greatly improving the capabilities of high performance computers and other devices, The carbon nanotubes form the core of ...

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