PBS NEWSHOUR: NPR’s Tamara Keith and Amy Walter of "The Cook Political Report with Amy Walter" join Geoff Bennett to discuss the latest political news, including the Senate voting to clear a path to ...

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Abstract: In order to further improve the detectability of laser ultrasonic testing method for internal defects of materials, this paper studies a new phased array laser ultrasonic detection and ...

Abstract: In this paper, a design concept of sparse array is applied to total focusing imaging technique. During the process, the elements of a phased array are partially selected according to the ...