In order to minimize the disturbance of the scattering wave induced by crystal-grain-structure of the material to the useful signals and raise the signal-to-noise ratio(SNR),wavelet neural network is introduced to the signal denoising for ultrasonic detection of coarse-grain materials.
为了最大限度地消除粗晶材料超声检测时,晶粒散射波对有用信号的严重干扰,提高接收信号的信噪比,将小波神经网络引入粗晶材料超声检测信号处理领域中。
参考来源 - 小波神经网络在超声检测信号降噪中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
Various properties of coarse-grain WC powder are described, as well as the alloys made by coarse-grain WC powder and its uses of all kinds in hard-surface materials.
评述了粗晶碳化钨粉的各种特殊性能，列举了用粗昌碳化钨粉制成的合金及粗晶碳化钨粉在硬面材料中的多种多样的用途。
According to the specification recently promulgated, it is required to determine filling criteria of incoherent coarse grain materials on the basis of their relative density.
我国近期颁布的设计规范，对土石坝的无粘性粗粒坝料的要求是以相对密度确定其填筑标准。
After annealing coarse grain structure was observed and the impact ductility and the elongation of materials increased.
退火以后，发现材料的晶粒长大，材料的冲击韧性与延性提高。
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