查询词典 random deviation

This paper, the future market conditions as a random event, according to the probability of higher mathematics in the theory of the future market and the level of information, analysis and evaluation of mathematical expectation of random variable as a random variable reflects the average level, it is important to the probability of random variable characteristics.

本文把未来市场状况作为随机事件，依据高等数学中的概率理论，对未来市场和信息的水平作出分析和评价，由于随机变量的数学期望体现了随机变量的平均水平，它是随机变量的重要概率特征。

The primitive polynomial of 3-12 pseudo-random sequence generator is obtained after the deductions. The better nonlinear feedback function of all states pseudo-random sequence generator can be picked out according to the characteristic of pseudo- random sequence signal, then using all states of shifting counter through modifying the linear shift register feedback network to realize the all states pseudo-random sequence signal.

经过推导可以得到3-12 bit伪随机序列发生器的本原多项式，再根据伪随机序列信号的特性选择出较好的全状态伪随机序列发生器的非线性反馈函数，即通过修改线性移位寄存器的反馈网络将移位型计数器的全部状态加以利用，实现全状态伪随机序列信号。

Describes how to generate random numbers of articles in the computer does not have a true random number generator, but it can be done to generate the number of repetition rate is very low, this might seem true random numbers, to achieve this functionality program is called pseudo-random number generator.

详细说明：介绍怎样产生随机数的文章，在计算机中并没有一个真正的随机数发生器，但是可以做到使产生的数字重复率很低，这样看起来好象是真正的随机数，实现这一功能的程序叫伪随机数发生器。

In the study of the stochastic chaos in simple pendulum, the random Melnikov process is derived and the mean-square criterion is used to determine the threshold amplitude of the bounded noise excitation for the onset of the chaos or random chaos in the system. For the coupled simple pendulum and harmonic oscillator, the Melnikov function is used to determine the condition for the onset of chaos in the case of Hamiltonian perturbations. In the case of non-Hamiltonian perturbation, the generalized random Melnikov process and mean-square criterion are used to determine the threshold amplitude of the bounded noise for the onset of random chaos.

在随机混沌研究中，应用随机Melnikov过程的均方准则研究了单摆在有界噪声激励下发生混沌或随机混沌时有界噪声激励的临界幅值；对于耦合的单摆-谐振子系统，先用Melnikov函数研究了在哈密顿扰动下发生混沌的必要条件；然后用推广的随机Melnikov过程方法研究了在非哈密顿扰动下发生随机混沌的必要条件；用最大Lyapunov指数及Poincaré截面方法结果与上述理论结果作了对比。

In the third part, we study an application of stereographic projection transformation in statistics, deriving Box-Muller formula (use two independent uniform random number to generate two independent standard normal random number) and spherical symmetric distribution (a product of a positive random variable and a random vector with uniform distribution) in multivariate statistical analysis.

第3章，研究了球极投影变换在统计中的应用，通过球极投影变换获得了利用两个相互独立的均匀随机数生成两个相互独立的标准正态随机数的Box-Muller公式以及多元统计分析中的球对称分布（一个正的随机变量和一个与之相互独立的均匀分布的随机向量的乘积）。

And according to Krashen's (1980) Input Hypothesis, different learners at different levels should be given different suitable input. So the present thesis studies what kind of listening input is comprehensible for the intermediate college students and hypothesizes that the memory for random digits is subcomponent of primary memory, and that the memory for random words and for phrases are the subcomponents of speech-processing memory; these components rank in order of phrases contributing the most to an explanation of the variance in listening scores, random words the second and the random digits the least.

因此本论文旨在研究什么样的听力输入适合中级水平中国大学英语学习者，并且假设对随机数字的记忆是基础记忆的成分；而对单词的记忆和对词组的记忆是语言处理记忆的组成部分，并且以上各成分对听力理解的影响依次是对词组的记忆影响最大，对单词的记忆位于第二位，对数字的记忆位于最后。

The local averaging method is used to discretize the random field, correlated random variables are transformed to a set of uncorrelated normalized random variables, combining viscoelastic stochastic finite element method with H-L algorithm, the reliability of solid propellant grain is studied with different random parameters.

为了讨论各类随机因素对药柱结构可靠性的影响，采用局部平均法离散参数随机场，并通过相关结构分解成归一化的独立随机变量，将可靠度指标算法和粘弹性随机有限元法相结合，进行了固体推进剂药柱的结构可靠性分析。

The random errors of main factors in flood regulation process are identified; and combining flood forecast, the randomnesses of main parameters such as initial reservoir level, inflow flood, outflow flood, etc., are analyzed. By using the first order second moment method and theoretic distribution, the random distributions of parameters are described then the routing process of a certain preflood limit water level is random, which can well reflect the random preflood influences in actual regulation.

对防洪调度过程各主要相关参数进行了随机误差识别，结合洪水预报对起始水位、人库洪水、泄流等主要参数的随机性进行分析，应用一次二阶矩法和相应的理论分布函数描述事件的随机分布，对应某一汛限水位的调洪过程不再是一确定过程，而是具有随机分布特性，反映了实际防洪调度中各随机因素的影响作用。

Our main result is for any immigration-emigration birth and death matrix random environment, q, with birth rateless than death rate, there are a unique q-process in random environment P9*(0;t and a bi-immigration birth and death process in random environment with random transition matrix P(9*{Q);t such that P9*(0;t is ergodic and X* is a strictly stationary process.

在这一部分，我们将经典的生灭过程理论推广到了随机环境下，证明了对任意给定随机环境移入-移出-生灭密度矩阵q，当生率小于死率时，存在一个唯一的随机环境下的q过程—θ~*(0；t和随机环境下的移入-移出-生灭过程，使得严平稳，遍历，其随机转移阵为？

A new data management algorithm for anycast based random sampling in sensor networks;2. Composite random sampling algorithm for scheduling concurrent projects;3. In the existing methods of random summing of total resource,the shape of the total resource curve sometimes distributes skewly,in view of which,the new method was put forward to improve random sampling .

针对现有的资源总量随机求和中存在的资源总量曲线形态有时呈偏态分布的问题，提出了对其随机抽样方法的改进方案，即把随机抽样入口由原来定义在(0，1)区间上改为定义在(0，ki)区间上(ki为第i个局部地质单元的石油资源量保险系数)，利用(0，ki)区间上均匀分布的随机数对风险分析后的资源总量分布函数进行随机抽样。

Fostering the concept of multi-culture firmly and mastering the development of advanced culture correctly are conductive to resisting terrorism, separatism of nationalities and ultraism of religion, which is of great academic theoretical, immediate and profound historical si...

牢固树立多元文化的理念和正确把握先进文化的发展方向，有助于在世界范围内自觉地抵制恐怖主义，民族分裂主义和宗教极端主义。不仅具有重大的学术理论意义，而且也具有重大的现实意义和深远的历史意义。

But if anyone walks in the night, he stumbles, because the light is not in him.

11：10 若在黑夜行走，就必碰跌，因为那光不在他里面。