基于计算机的

Moreover,the paper also presented a method of model stationary vector stochasticseries with given correlation matrix on the basis of a triamgulardecompo...

另外还提出了一种基于块形Toeplith 矩阵的三角形分解模拟有指定相关矩阵的平稳矢量随机序列的方法。此方法需要较少的计算机存贮量。

It order to overcome the difficulties in representation of developable surface s utilizing traditional approaches,based the concept of duality between points and planes in 3D projective space, a direct explicit method of computer-aided design for developable surface s was presented.

基于三维射影空间中点和平面间的对偶性，提出了计算机辅助设计五次样条上可展曲面的一种简单且有效的方法，通过采用该方法，可利用具有B啨zier和B样条基的控制平面设计可展曲面。

METHODS: Subtractive cDNA DNA library of PDLF was constructed with a recently developed gene cloning technique that is based on PCR and subtractive hybridization and then screened by restriction analysis and reverse southern dolt blot.

采用基于PCR和消减杂交的基因克隆技术构建体外培养的人PDLF与GF差异表达基因的扣除文库，采用酶切和反向杂交的方法筛选目的克隆，并进行测序和计算机分析。

Design of irregular template based on the concentric equipotential line of target contour,combined with the projection,can quicly and efficiently realize automatic identification and position of irregular images by the computer.

针对工业自动装配产品过程中异形工件出现旋转后的定位问题，提出一种新的异形目标识别方法，设计基于目标轮廓的同心等势线异形模板，并结合圆投影方法，能快速有效地实现计算机对异形目标的自动识别与定位。

Based on Collins integral formula and the expansion of the hard aperture function into a finite sum of complex Gaussian functions,the approximate analytical expression of the diffraction field of Gaussian beam by a circular disc is derived,and its characteristics are analyzed by the numerical calculation and numerical simulation.

基于圆孔光阑函数展开为复高斯函数和的方法，用Colins积分公式，导出了高斯光束照射下圆盘衍射的光场近似解析表达式，经计算机数值计算，对高斯光束照射下圆盘衍射的衍射特性进行了详细的分析

In this paper, combining the technique of parallel computation with the numerical method of 3D eddy current field, we designed the algorithms of generating mesh, forming finite element equations and solving them in parallel on a shared memory multiprocessor (SGI Challenge L 8 CPUs), and presented a concrete and effective method.

本文将并行计算技术和三维涡流场计算方法相结合，对三维涡流场有限元分析的并行处理技术进行了细致的研究，设计了基于共享内存并行计算机(SGI Challenge L 8 CPUs)的网格剖分并行算法和三维涡流场有限元方程形成和求解的并行算法，为数值求解实际三维涡流问题提供了一种有效途径和具体方法。

Basing on the finite element geometrical model of body framework for the passenger car that is satisfied with the need of the strength and the stiffness, and Using method of model data transform which talked before, the passenger car body modeling is built.

针对满足车身骨架强度和刚度要求的某客车车身骨架有限元几何模型，采用所阐述的模型转化方法，并结合现代计算机辅助设计的方法和手段，实现了基于模型数据转化的客车车身造型。

Chapter 5 deals with the solvable theorem of adaptive inverse optimal control problems for a class of stochastic nonlinear systems driven by Wiener noises of unknown covariance. The systems are depicted by It〓 stochastic differential equations. By using an adaptive backstepping algorithm and stochastic control Lyapunov functions, the designing procedure of control laws of global asymptotic stability in probability and adaptive inverse optimal stabilization in probability are presented systematically. Adaptive control laws and parameter update laws can be obtained at the same time by this design scheme.

在第5章中，针对具有方差不确定Wiener噪声扰动和未知定常参数的随机非线性系统（假设方差的F—范数是一个常数或一个缓慢变化的量，对其进行在线辨识），给出并证明了自适应逆最优控制问题可解定理，基于随机Lyapunov定理和It〓微分规则，采用自适应Backstepping设计方法，系统地设计了全局依概率渐近稳定和自适应逆最优控制策略，这种设计方法可同时获得控制策略和自适应律，计算机数值仿真结果表明该控制算法是有效性的。

This paper is focusing on the setup of non-contact automatic measurement for the end face of fiber connector by applying micrography and image processing technology.

介绍了一个基于显微成像和数字图像处理技术的非接触式光纤连接器端面自动检测系统：待测的光纤连接器固定于显微平台上，CCD接收显微物镜放大的图像并输入计算机中，然后由系统软件自动对图像进行对比度增强，二值化，平滑去噪，图像分割等处理，从而分析计算出纤芯、包层的各项几何参数。

On the basis of computer two-eye vision technology and heterodyne multiple frequency technology, 3D dense point cloud optical measurement software named by XJTUOM software had been developed,3D data of the object surface mought be acquired precisely by means of this way, According to the whole marked points come from XJTUDP,every pieces of point cloud mought be assembled automatically.

开发的XJTUOM三维光学密集点云测量系统软件，基于外差式多频相移技术和计算机双目立体视觉技术，可以精确采集物体表面的三维数据，利用XJTUDP产生的全局标志点，可以实现每幅点云的自动拼接。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了