随机

It turns out that the traffic characters of the improved NS model with partitive open boundary conditions are different from that of this model with fully open boundary conditions.

对于描述高速公路一维情况的典型的CA交通流模型，有Nagel和Schreckenberg提出了考虑车距分布的随机加速，随机减速的CA模型[7]。

The former receivers randomly perform an arbitrary unitary operation on each of the particles, which is equivalent to eneryption of the particle with a random key and ensures the security of the present pro- tocol.

先前的接收者在每个粒子上随机地执行一个任意的幺正操作，相当于用一个随机的密钥加密粒子，确保了这个方案的安全性。

In this paper, adigitalcorrelation device wasdesigned, and correlation function of two periodic pseudo-random sequence s wascompleted using FPGA device.

设计了一种数字相关器，使用FPGA器件实现了伪随机序列相关运算，能够对伪随机序列的相关特性进行快速检测。

The co-polarized and cross-polarized backscattering coefficients and polarizability of a layer of non-uniformly oriented metamaterial spheroids under illumination of an elliptic polarized plane wave are numerically simulated.

计算了任一椭圆极化入射下一层非均匀取向的随机分布异向材料粒子的同极化和交叉极化后向散射系数，以及随机粒子产生散射场去极化的极化度。

Fifthly, we research the problem about the stochastic fluctuate of the contents of organic compounds and microelements in the land under the assumption continuous-time model. The first, a dynamic model about fertility of plowland is presented using stochastic diffusion processes and distributed parameter system.

在分析了农业耕地中有机物含量及微量元素含量的随机变化过程的基础上，利用扩散随机过程理论及分布参数系统建立分析模型描述耕地肥力的分布状况；研究了以维护耕地最优质量状态作为目标值的最优控制问题。

According to poisson distribution and percolation theory, we construct stock price model, and use characteristic function to prove the convergence of this model, we can get that the characteristic function of the constructed model converge on the characteristic function of the Black-Scholes function.

根据泊松分布和渗流理论构造了股票价格的随机模型，并利用特征函数的性质论证了该模型的收敛性，得出所构造的股票价格随机模型的特征函数收敛到某一个Black-Scholes公式的特征函数的结论。

The frequency spectrum of the electric field, produced by an electric current dipole on the surface of the uniform conductive and polarizable earth, is transformed into time spectrum, with or without some random error added, and the time spectrum is then inversely transformed into the frequency domain.

基于层状导电和可极化大地表面，电偶源电场的时间谱在无随机干扰和有随机干扰时，进行频谱转换的计算结果，证明了时—频转换的误差传递问题严重。

Chapter four first analyzes the forming reason for the supply chain satety st -ock and analyzes the relationship between lead time and the safety stock of com -ponent commonality, and it establishes a decision framework of safety stock. There is a case study based on an Auto-electric Motor Company.

第4章介绍了供应链的安全库存的形成，并结合汽车电机产品的特点和企业库存特点，分析了随机提前期下采用通用件对安全库存的影响，提出了随机提前期下安全库存的控制策略，并在结合实例分析了安全库存控制策略选择问题。

The concepts of random regular function and random potential function are introduced.

引入随机正则函数和随机位势函数的概念。

Methods Randomised,prepositive,and controled study.116 patients with hypertension were devided into two groups of ACEI+diuretic or diuretic.

采用随机、前瞻、对比法，将116例原发性高血压病患者随机分成双克组和开博通+双克组。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。