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Cu/Ni multilayer films with sublayer thickness (h) ranging from 10 to 1000nm were prepared on ANSI 1045 steel by brush plating of periodically changing layers of Cu and Ni. The microstructure, composition, microhardness and sliding wear properties against standard SiC ball under unlubricated condition were examined. It was found that the brush plated multilayer films are highly dense and free from...
Exact segment of the laser image is the key of three-dimensional laser scanning in natural lighting condition. Conventional image segment algorithms, however, can hardly deal with the influence of the system noise caused by the intense scattering under natural lighting. In this paper, an image segment algorithm based on the level set was proposed. First, the original two-dimensional profile curve...
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