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Based on CORDIC algorithm, research reveals how to calculate hyperbolic function by simple hardware.

研究基于CORDIC算法如何应用简单的硬件实现双曲正弦／余弦函数的计算。

At the same time, the method how to calculate the optimum width of the window has been found;(3)A basic hyperelliptic curve cryptosystems integrated encryption system is implemented on the Java platform.

在Java平台上实现了一种超椭圆曲线密码体制的综合加密系统。

First,a formula to calculate the normal vector of any hyperplane is given and a mixing matrix recovery algorithm based on the normal vector of any hyperplane is proposed.

首先给出了m维超平面的法矢量的计算公式，提出了一个基于超平面法矢量的矩阵恢复算法。

A partly analytical composite Monte-Carlo method on structural failure hyperplane was proposed to efficiently and accurately calculate structural reliability.

为了提高采用蒙特卡罗方法计算结构可靠度的效率和精度，提出了一种部分解析的失效面上的复合蒙特卡罗方法。

To calculate the aerodynamic forces on the vehicle and grid-fins, we use time-dependent method to solve the Navier-Stokes equation of ideal gas, and flux conservational multizones method to divide the complex vehicle and grid-fins into eight computational zones which are relatively independent, and correlative with each other at once with satisfactory results.

为了计算作用在飞行器和栅格翼上的气动力，采用时间相关法数值求解完全气体的三维Navier－Stokes方程，并运用通量守恒的分区计算方法，将复杂的飞行器和栅格翼系统分解成八个既相对独立，又相互关联的计算区域，得到了满意的结果。

The transfer matrix method is used to calculate the band structures of 1D crystals with complex dielectric constant,in this paper,The authors put emphasis on the case of negative imaginary part.

利用传输矩阵法计算了一维光子晶体的能带结构和光传输特性，重点讨论了介电常量的虚部为负值时对传输特性的影响。

To calculate the quantity of overall airiness most importantly depends on the exhaust quantity of harmful air. In the research, we get the quantity of the overall airiness by achieving the datas of consumption of organic impregnant per year and one year' s work time in the company, and it is efficient to measure the harmful air exhausts.

对全面通风换气量的计算，关健在于是否了解有害气体的排放量，本研究通过了解该公司有机溶剂年使用量与年工作时经过计算而得，这种方法不失为了解有害气体排放量的一种有效途径。

This article discusses the use of the theorem of the residues to calculate Cauchy's Principal values of the improper integral, where auxiliary function has poles of higher order on the real axis and proposes a new theorem of culcuation.

在复函中应用留数定理计算广义积分的科希主值时，许多著作仅讨论了辅助函数在实轴上有一阶极点的情形[1-3]，有的则认为：辅助函数"在实轴上的奇点不能是二阶或二阶以上的极点["4，5]。

This method, based on the physical characteristics of clould, such as incompressibility, low density and inviscid, uses the fluid equations to calculate the properties of cloud. Then by accelerating this method through GPU, it achieves a good effect, which is continuous, dynamic and real cloud .

首先分析了云的物理模型，考虑到GPU的特点建立了云的模型；然后根据云的不可压缩、低密度、无粘性的特点，通过流体方程计算了云的物理属性，并将其求解过程在GPU中实现，从而得到了动态的，真实感强的，实时的统一，得到了较真实的模拟效果。

Firstly, This paper processes geometry filtration based on character of orbit's apogee and perigee after orbit model is analyzed and based. Secondly Space Debris is separated into two kinds, coplanar and not coplanar according as location interrelation of target and debris. In Dynamic filtration's processing, considering prediction time limit and orbit perturbation, secular effects which have increaser effect is considered so that some need catching danger time point is appeased, some law about time when target and debris pass intersectant line each other is inferred, when debris and object are in different plane and some similar law also is inferred otherwise. The time list is arithmetical progression. These laws can improve calculation efficiency remarkably; Lastly orbit predict is a course approaching least distance. Danger time point in the last step become beginning time point from which debris and object's position and velocity are calculated by SXP4 Model which is an analytic model.By result, determine that relative movement trend is closer or apart, farther calculate the interval apart from time when predictive least relative distance occurs. Least relative distance and time when least distance occurs is calculated finally. It is a fast approach course adopting varied interval.

本文在分析、建立轨道摄动计算模型的基础上，首先采用基于轨道远、近地点特征对大量编目在册的空间碎片进行初步几何静态筛选，然后根据碎片与目标轨道面的相对位置特点把碎片分为异面与准共面两种情况以进行动态筛选，在筛选过程中考虑到预报时限长度和轨道摄动影响，引入了轨道摄动中具有积累效应的长期项以满足危险时间点的捕捉要求，利用了长期项摄动变化线性的特点导出了碎片与目标异面情况下各自过交线的时间序列成准等差数列的规律性和准共面情况下类似的规律性，从而显著地提高了前期轨道筛选的计算效率；最后对剩余危险碎片和目标飞行器利用SXP4轨道预报模型在前期轨道筛选的基础上以各个危险探测时间点为预报的时间起点，并根据预报计算结果，分析目标和碎片在该时间点的运动趋势是相互远离还是相互接近，推出预计最小相对距离发生时刻相对此刻的时间长度，得到其随时间变化的局部最小相对距离以及危险距离发生的时刻和相对速度，这是一个采用变时间步长、快速逼近最小相对距离的过程。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！