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In this paper a forward-looking synthetic aperture radar (IceSAR) system is described for the ‘Very deep Autonomous Laser-powered Kilowatt-class Yo-yoing Robotic Ice explorer’ (VALKYRIE) project. Fabrication and laboratory characterization of novel log periodic antennas for IceSAR and system design and in situ testing of the synthetic aperture radar system are presented.
Rebreather diving systems have many advantages with respect to standard open circuit system (or SCUBA). They offer higher gas efficiency together with silent and bubble free diving. Moreover instead of cold and dry gas found in open circuit systems the diver takes advantage of a warm and humid breathing gas. While most rebreathers require intensive training and high technical understanding, the Poseidon...
Wafer Level Package (WLP) technology has seen tremendous advances in recent years and is rapidly being adopted at the 65nm Low-K silicon node. For a true WLP, the package size is same as the die (silicon) size and the package is usually mounted directly on to the Printed Circuit Board (PCB). Board level reliability (BLR) is a bigger challenge on WLPs than the package level due to a larger CTE mismatch...
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