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Collisionless shocks are relevant to a variety of astrophysical scenarios, such as the generation of highly energetic particles and cosmic rays during supernova explosions, and have recently been the focus of several laboratory plasma investigations employing high-power lasers. We present here a study of the generation and evolution of collisionless shocks in tenuous plasma, carried out at the VULCAN...
Design and characterization of a new generation of single-photon avalanche diodes (SPAD) array, manufactured by ST-Microelectronics in Catania, Italy, are presented. Device performances, investigated in several experimental conditions and here reported, demonstrate their suitability in many applications. SPADs are thin p-n junctions operating above the breakdown condition in Geiger mode at low voltage...
As many thermoelectrics are in polycrystalline form with grain size down to nanometer scale, the size and boundary effect play important roles in their physical properties. In the paper we develop an approach to simulate the electronic and thermo-electric property of polycrystalline. In the first step, the polycrystalline texture is created from phase field method in a two dimension scale for simplicity...
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