When strain waves pass through a ferromagnetic bar,owing to piezomagnetic effect,a nonuniform magnetic current will be stimulated by the strain wave simultaneously. 應(yīng)變波通過鐵磁性桿件時，由于壓磁效應(yīng)，會同時在桿件中激發(fā)出不均勻的磁流。
A thresholding method based on fuzzy exponential entropy and simulated annealing algorithm is proposed to segment a gridding image with nonuniform illumination efficiently. 摘要為了有效分割照度不均勻的網(wǎng)格圖像，提出了一種基于模糊指數(shù)熵和模擬退火算法的閾值分割方法。