分布的

In order to describe the random-like feature of chaotic signal, the statistical analysis method for discrete time chaos system is studied. A domain iterative algorithm for numerical estimation of the invariant probability distribution is presented, which is the foundation for the statistical analysis and processing of chaotic signal.

针对混沌系统的随机性特征，本文研究了离散时间混沌系统的统计分析方法，并给出了一种基于Frobenius-Perron算子的区间迭代算法用于混沌映射不变分布的数值求解，该方法在样本数较少时，仍可以获得不变分布的良好估计，为混沌信号进一步的统计分析和处理奠定了基础。

From the basic theory of spherical symmetry GRIN medium, we bring out a new method on calculating the GRIN distributiing function., then several examples are given on the method.

第四章：由一种新的光线轨迹提出一种新的梯度折射率分布，并研究了具有这种分布的介质的光学性质，其中重点是其对表面漫射材料性能的改善。

With the help of the variable separation transformation and the Laplace-equation, the distribution of the electric field inside a parallel-plate capacitor with a convex of a semi-round-post scar or a convex of semi-ball scar is investigated.

利用分离变数法和势的拉普拉斯方程分别讨论带有半圆柱形凸出疤和半球形凸出疤两种缺陷的平行板电容器内电场分布；通过对疤上电量的计算，从电荷分布的微观解释出发，得出一些有益的结论。

The methods of parametric calculation and circuit equation calculation are also introduced.

阐述了超高压电压互感器冲击电压分布计算的电路模型、参数计算和电路方程计算的方法，计算了三种不同结构的模型，并就这些结构的特点对冲击电压分布的影响进行了比较。

The electric field component of TM310 mode in cylindrical coaxial resonator presents periodic distribution along with circumference, the cylindrical resonator circumference borders with tunable inductors is irregularity and uniformity of the distribution is destruction.

中国科学院电子学研究所北京 100080；②中国科学院研究生院北京 100039摘要圆柱型同轴谐振腔中的横磁模TMs10的电场分量沿圆周方向呈周期性均匀分布，电感调谐的圆柱型谐振腔的圆周边界不再规则，腔内场分布的均匀性遭到破坏。

The results indicated that the area of SOC increase after 20 years was 621.3 km2 and the increase was 0~5 g/kg and 5~10 g/kg, but that of decrease was 38.4 km2 .The areas of SOC changes in soils derived from phyllite, granite, red sandstone, Quaternary red clay and purple shale were 361.7 km2, 144.7 km2, 76.5 km2, 48.7 km2 and 27.8 km2, respectively. The areas of SOC changes in soils with elevations below 300 m, 300~500m, 500~800m and above 800 m were 358.9 km2, 200.2 km2, 62.9 km2 and 28.0 km2, respectively.

结果表明， 20 a来，兴国县农田土壤中土壤有机碳增加的面积为621.3 km2，减少的面积为38.4 km2，增幅主要在0~5 g/kg和5~10 g/kg；千枚岩、花岗岩、红砂岩、第四纪红粘土和紫色砂页岩发育的土壤中有机碳变化量分布的面积分别为361.7 km2、 144.7 km2、 76.5 km2、 48.7 km2和18.0 km2，海拔在300 m以下、 300~500 m、 500~800 m和800 m以上的土壤中有机碳变化量分布的面积分别为358.9 km2、 200.2 km2、 62.9 km2、 28.0 km2。

To achieve better than first-order accuracy in Godunov method, a piecewise linear function instead of a piecewise constant function is used along the line between the centroids of two neighbored cells.

为了提高Godunov算法的求解精度，本文将相邻两个三角形单元重心连线上的参数分布看作是分段线性函数，线性函数的坡度取决于网格单元内参数分布的梯度在插值方向的投影。

This dissertation studies several kinds of instantaneous frequency estimation methods, pay much attention to the performance of instantaneous frequency estimation algorithm based on the peak of time-frequency distribution. It gives the theory and algorithm of polynomial Wigner-Ville distribution, analyzes its performance to the noise of the moving target in the air.

对常用的几种瞬时频率估计算法进行了研究，重点研究了基于时频分布峰值的瞬时频率估计算法的性能，给出了多项式Wigner-Ville分布的原理与算法，分析了在直升机定位这种特定情况下的有效性。

The strong link of the stress distribution of the compact issued from a roll press fed by a single screw with the periodicity of the screw was demonstrated and explained.

对强烈环节紧凑的应力分布的解释和说明，这些应力是分布在由一根周期旋转的螺杆喂料的滚压机上的。

In the proposed frame of theory, probability density function or distribution function are also involved, but their standing are secondary. Probability density function is treated only as a probabilistic features of the failure rate function.

在本文倡导的理论体系中，也要涉及概率密度函数或分布函数，但他们仅被视为失效率函数的概率特征，讨论的路线是失效率函数的模式如何决定寿命分布的概率性质。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。