Since Pulse Code Modulation emerged in 1937, digitized speech has experienced rapid development due to its outstanding voice quality, reliability, robustness an
Fuzzy pattern recognition has been employed to identify some atlas and images of the unevenness of carbide in tool steel. Three models have been constructed. Th
[1]W. Y. Chu, L. J. Qiao, Q. Z. Chen, et al:Fracture and Environmental Fracture. Science Press, Beijing, 2000.[2]D. A. Jones: Corrosion, 52(1996), No.5, p.356.[3]T. M