对数分布

The development and application of the conventional coreless generator and electromagnetic damper are introduced at the beginning of this paper.

文中简要介绍了常规空心杯电机与电磁阻尼器的结构、发展和应用，基于Ansoft公司的电磁场分析软件Maxwell 2D学生版软件建立了电磁阻尼器静磁场的二维仿真模型，分别对不同充磁方向、极弧系数、磁极对数的气隙磁密分布进行了静态仿真分析，得出了相应结论。

The velocity distribution of the numerical simulation and the theoretical equations calculation are compared on the condition of axial symmetry.

结果表明，在轴对称条件下，对数模、理论计算的速度分布进行对比分析，证实了旋涡流场不仅是径向的函数，而且还是轴向的函数。

However, MLE is a biased estimator of the fold change and minimum variance estimator of the fold change exists under the log-normal distribution.

然而相对表现量在对数常态分布时应用最小变异不偏估计法较 MLE 具有不偏性和最小变异。

When we study stock market, we usually think that the model of stock price obeys Brownian movement, which log-return characterize normal distribution.

我们研究股票市场价格时，通常认为股票价格模型服从布朗运动，即对数收益率是正态分布的。

By studying the stock market, however, many researchers discover that the stock prices do not obey the geometry Brownian movement, i.e., the logarithm return rate of stock prices do not obey normal distribution.

然而大多研究者通过对股市的研究发现股票价格并不服从几何布朗运动，即对数收益率不服从正态分布，如文献[6][7]通过对实测数据的分析，说明布朗运动与市场实际相距甚远。

The model types include frequency histogram,cumulative frequency distributing graph and theoretical model with double logarithmic coordinates.

模型类型包括频率直方图、累积频率分布图以及用双对数坐标表示的理论分布模型。

Single bit and multi-bit random errors in a data block can be forward corrected with a simple cyclic redundancy check code.

出现差错的符号主要分布在对数似然比绝对值较小的若干符号之中，可以利用这一特性实现差错符号的定位。

The experimental results show that the distribution founction p of the whole signal group and the different pulse width subsets all fit the lognormal distribution with very high precision in the amplitude's field of definition (V0,VM) under the condition of the big samples, which indicates that the random signal group has the statistical fractal (self-similarity) characteristic.

实验数据表明，在大样本条件下，脉冲信号集合整体及不同脉宽信号子集的p 函数在幅度定义域(V0，VM)内均以很高的精度满足对数正态分布形式，即该随机脉冲信号群具有统计分形特征。

In this paper,the law of iterated logarithm for product sums of positive as- sociated sequences with the strong stability and the strong law of large numbers for product sums of positive associated sequences with different distributions are proved.

证明了强平稳正相协列乘积和的重对数律与不同分布正相协列乘积和的强大数律，指出了部分和服从强大数律但乘积和未必服从强大数律这一事实，并讨论了定理2中一个条件的必要性。

Classical limit theory includes the central limit theory, the law of large numbers, and the law of iterated logarithm etc.

经典的极限理论包括中心极限定理，大数律，重对数律等等，相对于收敛性来讲，就是依分布收敛，依概率收敛，和几乎必然收敛等等。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。