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梯度指数
    Advanced gradient index analysis method for the evenness based on computer vision and its application
    视觉匀度分析的改进梯度指数法及其应用
    In order to characterize the gradient structure of the copolymers, we define a parameter, I, which is called gradient index.
    结果证明利用梯度指数表征梯度聚合物的梯度结构是可行的,并讨论了各反应参数对梯度因子的影响。
    An advanced gradient index texture analysis algorithm based on computer vision methods is proposed with paper as the research object, which uses pyramid-like structure squared variance based on the standard evenness (detecting) method. This method has both micro evenness characteristics and the macro ones.
    以纸张为研究对像,利用计算机视觉方法,在分析了标准匀度检测方法的基础上,采用类金字塔结构方差给出了改进的梯度指数纹理分析算法,它既体现了微观匀度特性,又体现了宏观匀度特性.
    The critical buckling loads were presented for a simply supported rectangular plate made of functionally graded material bonded piezoelectric patches by using bi-triangle series expansion method. The numerical examples were given and the influences of the plate aspect ratio and functionally gradient index on the buckling voltage were discussed.
    利用双三角级数展开法,得到了四边简支具有压电元件的功能梯度矩形板的临界屈曲载荷,在此基础上通过数值例子讨论了弹性板的几何尺寸、材料梯度指数的变化对临界电压(载荷)的影响。
    The influences of the geometrical size of plate,functionally gradient index and displacement at mid-plane of plate on the critical voltage are discussed.
    在此基础上,讨论了板的几何尺寸、材料梯度指数的变化和中面变形等因素对临界电压(电载荷)的影响.
    The influence of electric field and gradient index on its natural characteristics is discussed by using numerical examples.
    并进一步通过数值例子讨论了电场强度、材料的梯度指数等对板固有特性的影响。
 

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