查询词典 mathematical models

The scientificalness is an important problem in the methodology of water quality models,and the reasonable understanding of the mathematical models will effect directly their practical application.

水质模型的科学性是其方法论上的重要问题，对数学模型科学性的理解将直接影响其在实际工作中的应用。

The physical models and mathematical models of flow,heat transfer and weight calculation in the network were established.

采用网络分析原理，研究由环控生保系统中气、液流体回路所构成的流动和热网络，建立此网络中流动、传热及重量计算的物理模型和数学模型。

The physical models and mathematical models of flow,heat transfer and weight calculation in the network were established.

采用网络分析原理，研究专家由环控生保系统中气、液流体回路所构成的流动和热网络，建立此网络中流动、传热及重量计算的物理模型和数学模型。

Mathematical models for timelapse seismic inversion are designed, which depend on the prospecting time. On the basis of this kind of models, the globally convergent continuous and recursive algorithms are constructed.

针对时间推移地震反演问题建立了依赖勘探时间的数学模型，并在此基础上设计了全局收敛的连续型及逐次递归算法。

When a few of local 3D terrain models have been reconstructed respectively,firstly find the common 3D points between every two adjacent local models based on edge detection and image matching,secondly fit the matrix of coordinate transformation employing the technique of separating rotation matrix and translate vector,and lastly register these local 3D models into a single coordinate system.

当恢复出多个局部3D地形模型时，首先基于边缘检测和图像匹配技术提取出相邻局部模型之间的公共数据点，然后采用分离旋转变换和平移矢量的策略拟合出相邻模型之间的坐标转换关系，之后就可以将局部模型统一在同一个坐标系下。

With this useful add-in you will: Browse through your built models, manage the versions of your models, rotate through opened files, freeze or divide panes, Monitor a specific cell all the time, Rotate, hide, show, add, delete, arrange, protect, unprotect, rename, etc. to your activates spreadsheets, Mark your workbooks or spreadsheets as favorites and access to them quickly, Arrange all of your windows as you like, Save your models by versions with this useful tool, Schedule your tasks directly in your worksheets.

与这个有用的添加-在你会：浏览您的兴建模式，管理版本的模型，旋转，通过开放的档案，冻结或鸿沟窗格，监测特定细胞的所有时间，旋转，隐藏，显示，添加，删除，安排好，保护好，撤消，重新命名等，以激活您的试算表，马克您的工作簿或试算表，作为收藏和获得他们迅速，安排所有您的Windows如你所愿，保存您的模型版本，与此有用的工具，附表您的任务直接在您的工作。

The data of forest inventory and stem analysis were used to build models about diameter breast-high, high of tree, volume of single timber, stand volume, and these models were correlative to age and stand density. The models were transforming into three-dimension graphs, and the stand growth processes were simulated to visual images.

利用林分调查和解析木数据建立了具有一定适应性的湿地松纸浆林胸径、树高、单株材积和林分蓄积模型，对生长模型进行了图形化表达，并对林分生长过程进行了可视化模拟再现。

In the present study, three different blood constitutive models, namely, the Newtonian, the Casson and the hybrid fluid constitutive models were used in the flow simulation of the human carotid bifurcation. The results were compared among the three models.

为此，本文采用数值方法比较了三种不同血液本构关系（牛顿模型，Casson模型和混合模型）所模拟的血液在颈动脉分岔血管内的流动情况。

In the studies of EEG forward problems, primarily the EEG computation models are established, the analysis solution for concentric circle models and the boundary element method for piecewise humongous models are developed. These provide the basis for EEG inverse problems.

在EEG正问题的研究中，首先建立EEG计算模型，研究了针对同心球模型的解析解法和针对任意分层均匀介质的边界元法，为EEG逆问题研究奠定了基础。

Chapter 1 briefs the relation between invariance and computer vision and summarizes the research and application of invariance in computer vision. Chapter 2 first derives the transformations of three camera models, then makes the correpondences between the models and three typical geometrical transformation groups by analysing the transformations respectively. The correspondences supply the theoretical basis for applying geometrical invariants to resolve the problems of computer vision. In Chapter 3, we describe the geometrical invariant theory and prove some geometrical invariants of coplanar points, lines or conics by algebraic method. In order to use the invariants of conic pairs to describe general 2D shapes, we discuss the perspectively invariant representation of planar curves using conies in detail. A system consisted of two TMS320C25 and based on moment invariants is introduced in Chapter 5. The system can recognize more than 30 different shapes of object model or more than 10 plane models with similar shape in real time.

第一章简述了不变性与计算机视觉的关系，以及计算机视觉中的不变性研究和应用概况；第二章推导了计算机视觉中常用三种投影模型的变换关系，通过对这三种变换关系的分析，分别建立了这三种投影模型和几何学中的三种变换群之间的一一对应关系，为几何不变性在计算机视觉中的应用提供了理论基础；在第三章中，我们介绍了几何不变性的理论，并且用代数方法证明了共面点、直线、二次曲线的几何不变量和射影不变量；为了把二次曲线的不变量用于一般二维形状描述，在第四章中我们详细地讨论了用二次曲线实现一般平面曲线的透视不变性表示的方法；第五章介绍了用两片TMS320C25构成的、基于不变矩形特征的运动目标实时识别系统。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。