查询词典 vector component

Firstly, the equivalent changes of the effective resultant rotation vector and its vertical component with time are estimated by imaging the data in successive partially overlapped intervals and subsequently estimating the Doppler spread and the centerline slope of the ship target shown in each subimage.

该方法首先对回波数据进行分段短时成像，通过估计每幅图中舰船目标在方位向的多普勒频率展宽和船体中心线斜率，获得等效的雷达与舰船之间合成有效转动矢量和其垂直转动分量随时间的变化。

The devices, such as multi-component measurement table and thrust vector measurement rotating table, are used frequently, but they are suitable only for steady test of the thrust misalignment, especially it cant do very well when some load is very high and other loads were low.

目前，发动机推力偏心测试装置常用多分力测试台架和推力矢量测试转台装置，但通常只适合稳态推力偏心测量，且当各分力的量程相差太大时，难以取得理想的效果。

A new approach-two dimensional principal component analysis(2DPCA) is developed for face recognition. 2DPCA approach dont need to transform the image matrix into feature vector. It directly uses the image matrix to construct the sample covariance matrix.

5研究了二维主成分分析(2DPCA)方法，2DPCA方法不需要先将图像矩阵展开成一维向量，而是直接利用图像矩阵来构建样本协方差矩阵，所以2DPCA比PCA的识别时间更短，识别更高。

ABSTRACT A three-component boundary element algorithm for the calculation of 3-d linear eddy currents is presented,which employs an imaginary magnetic charge scalar and an imaginary current density vector with two components,distributed over the interfaces of different regions,as unknowns.

提出一种计算三维线性涡流场的三分量边界元算法。该算法采用在导体表面上虚设的磁荷和电流密度为求解变量，仅需求解3个分量：虚设磁荷标量和电流密度矢量的2个分量。

This method took the correlation of every color component into account reasonably, and converted the computation of a vector space to scalar quantity in a natural way.

这种边缘检测方法，在一定程度上合理地考虑了个各颜色分量的相关性，将向量空间的计算以自然的方式转换成了标量的计算，在思想上是一种不同于其他算法新的算法。

So, When the power system is in transient, the sliding mode control rule is chose directly to make transient component decrease quickly, and when the power system is in stability, the direct current control method based on voltage space vector method is imported to make the error current reduce to zero by inches and avoid surge.

为此，当系统处于暂态时，论文直接选择滑模控制率使暂态分量迅速减小，当系统处于稳态时，引入基于电压空间矢量的直接电流控制方法，使误差电流趋于0缓慢变化，在有效补偿系统无功的同时，提高了系统的动态特性，并大大降低了系统振荡的可能性。

The vector sum of the angular momentums of each component particle of an extended body.

动量矩伸展体的每个组成微粒的角动量的矢量值。

Thirdly , a conclusion has been settled down in this dissertation: Because the shaft inertial force vector do not pass the center of the rotating center of the system, there is a moment generated by the shaft inertial force and the counterforce of the cylinder wall to counterbalance the pressure which is imposed by the piston, so, it is important to consider the tortile effect on the flexible supporting component of the balancing machine dedicated to motorcycle crank set, which is originated by the moment.

第三：得到了一个结论：在设计制作曲柄连杆机构动平衡测试装置时，必须考虑这一受力情况，即连杆在作平面运动时，其自身的惯性力与汽缸对活塞的反作用力二者之间形成的力偶将会对弹性支承元件产生扭矩的作用。

Finally, the ideas of principal component analysis and support vector machine can also be used to document classification, the results of simulation is discussed.

在此基础上，提出了一种Web文档分类的基本框架，分析了用于文档分类的降维技术，给出了基于主分量分析和支撑矢量机的文档分类的基本思想，分析了仿真实验的结果。

Then, kernel principal component analysis and support vector machines with optimal parameters are proposed to classify driving mental fatigue.

然后用核主分量分析和优化支持向量机对基于脑电信号的驾驶精神疲劳进行分级。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。