A novel digital image scrambling method based on the function transform 一种基于函数变换的数字图象置乱新方法
Function transformation and exact analytical solutions for the combined kdv - mkdv equation 方程的函数变换和精确解析解
By constructing approximate functions and using prior estimate and conversion of variable , it is proved that the inverse problem has weak solution for given initial value , boundary value and the oil output 通过变量和函数变换,作逼近函数和估计等方法,证明了对给定的初边值和石油产量,此反问题存在弱解。
The key techniques are the introductions of a typical function transformation and a - weighted norm , which yield the uniform estimate with respect to the scaled debye length ) ,对任意的( 0 , min { , 2 } )都有我们应用的主要方法是能量方法,关键技巧是引入函数变换和-加权范数,使我们能够得到关于量级化德拜长度的一致估计。
In this paper , the transitional method of the spherical har monics is applied and a new model is gained . the parameters of the new model are geocentric radius , range cross - deviation and polar is decided by different trajectories 本文对球谐函数的改进主要是采用了换极法,根据不同的弹道重新选择极点,将球谐函数变换为以地心距、射程角、侧向偏差为参数的新的形式。