“Water activity” or “the activity of water” (typically abbreviated as “aw”) is a critical parameter in food science that influences microbial growth and chemical reactions (including enzymatic ...

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 ...