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The paper proposes Back Propagation Network, Radial Basis Function Network and Support Vector Machines on urban water consumption prediction.

本文分别采用BP网络、RBF网络算法、SVM回归法求解城市用水量预测模型，并比较了各种方法的特点。

NMF can find basis vector through observation data,and discover image feature,obtaining the fusion image.

介绍了非负矩阵分解的基本思想，讨论了非负矩阵分解用于图像融合的可能性，并实现了基于非负矩阵分解的遥感SAR图像与SPOT图像的融合，NMF能通过观测图像数据找到图像的基矩阵，发现图像的特征，从而最终获得融合图像。

According to the statistic model of piezometric level, model of piezometric level monitoring on the basis of support vector machines is founded. Comparing with traditional statistic model, the new model is more accurate and has better extension forecasting capability.

此后，针对统计模型的不足之处，引入了支持向量机方法的相关理论，建立了基于支持向量机方法的测压管水位监测预报模型，与统计模型相比，结果拟合精度更高，预测趋势更加符合实际情况。

In addition,"Beas Pillow","toad head" and other paper-cutting is an ancient philosophical concept of yin and yang of the vector.

此外，《双鱼枕》、《虎头蟾》等剪纸都是远古阴阳哲学观念的载体。

The movement characteristic analysis of elbow-bar framework is dealt with to gain displacement, velocity and acceleration of moving bedplate by adopting polar coordinates vector method.

具体内容和创新归纳如下：1 采用极坐标矢量法对肘杆机构进行了运动特性分析，得到活动平台的位移、速度和加速度等参数。

In June 1919, Henry Berliner built a machine with two co-axial propellers with vanes to vector the downwash for pitch control.

在1919年6月，亨利柏林建造的两个合作轴与叶片为载体，以螺距螺旋桨气流控制一台机器。

The main research work in this paper is as follows:(1) A detailed analysis about the theory of the SVM is given in the paper. And one framework of the Network Fault Diagnosis System based on SVM in network Application Layer is proposed. The handle process and the function, mechanism of the components of this framework are discussed in the paper.(2) When the size of the training sets is uneven, the classification error rate of the results based on the traditional C-Support vector machine is undesirably biased with the less sample in the training sets.

由于故障诊断是有限样本学习问题在实际中的体现，因此可以将支持向量机方法引入到网络应用层的故障诊断中来，本文涉及的内容主要包括：(1)详细深入的分析了支持向量机的理论特点及其与网络应用层故障诊断的关联，并就构建的基于支持向量机的网络应用层故障诊断模型，阐述了该模型的处理流程以及其中各个模块的功能、机制。

The bifurcation theory of the plane polynomial vector fields is one important research domain of the theory of ordinary differential equation.

平面多项式向量场的分岔理论是常微分方程定性理论的重要研究领域之一，主要研究依赖于参数的向量场的全局轨线拓扑结构随参数变化的规律。

In this paper,using numerical solution method of vector diffraction theory,we discuss the dependence of reflectivity upon structural parameters of subwavelength grating,particularly upon substrate thickness.It can be used as the basis for design and fabrication of binary optical element with proper antireflection property.

文摘：利用矢量衍射理论的数值求解方法，研究了亚波长光栅结构参数对反射率的影响，特别是基底厚度对反射率的影响，这些为设计和制作具有优良的抗反射性能的二元光学元件提供了设计依据。

We propose and demonstrate a new method to implement parallel matrix-vector multiplication with every element encoded in binary in aphotorefractive crystal.

追求衍射效率极大是我们的主要研究方向，这一研究结论对我们在存储与固定中如何获得极大衍射效率的全息图具有重要的指导意义。3光折变全息实现矩阵-矢量乘法

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。