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An inherent property of medical ultrasound imaging is the speckle noise that generally obscures the image and reduces the diagnostic image resolution and contrast. Consequently, substantial improvement of ultrasound images is an important prerequisite for ultrasound imaging. Some recent research has suggested that the spatial distribution of tissue densities may be used in ultrasound imaging to reconstruct...
Two-dimensional full particle electromagnetic particle-in-cell simulations are used in order to reproduce and analyze in details the intrinsic turbulence of the terrestrial collisionless bow shock. In order to compare numerical results and local experimental measurements performed by the four-satellite space mission CLUSTER, one has developed ldquovirtual proberdquo techniques crossing the ldquonumericalrdquo...
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