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Non-linear pulse cleaning is used along with an OPA front end and improved stretcher designs to improve pre-pulse contrast on the high intensity short pulse beam line of the Trident Laser.
Fresnel diffraction of x-ray beam from laser-plasma interaction shows incoherent-source diameter??8 ??m. Analysis shows this corresponds to accelerated electron profile in plasma agreeing with simulation.
We analyze an architecture based on mobility to address the problem of energy efficient data collection in a sensor network. Our approach exploits mobile nodes present in the sensor field as forwarding agents. As a mobile node moves in close proximity to sensors, data is transferred to the mobile node for later depositing at the destination. We present an analytical model to understand the key performance...
This paper presents and analyzes a three-tier architecture for collecting sensor data in sparse sensor networks. Our approach exploits the presence of mobile entities (called MULEs) present in the environment. When in close range, MULEs pick up data from the sensors, buffer it, and deliver it to wired access points. This can lead to substantial power savings at the sensors as they only have to transmit...
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