查询词典 vector density

Firstly,the densities of point defects and line defects in terms of the vector orderparameter fields are obtained directly from the definition of topological charges ofdefects(winding numbers of zero points of the vector order parameters),which aremore general than usually considered and will be a development of the works ofdefects done by Halperin and Mazenko.

本文首先从缺陷拓扑荷(即矢量序参数零点的环绕数)的定义出发得到了以矢量序参数表示的点缺陷和线缺陷的密度。

Angular momentum: The vector product of the position vector and the linear momentum of a particle.

角动量：的矢量和粒子线性动量的向量积。

Angular momentum: The vector product of the position vector and the linear momentum of a particle .

角动量：的矢量和粒子线性动量的向量积。一个完全新的粒子可以由于固体或液体表面因分裂或碎裂而形成。

The method relies on the facts that the row vectors composed of all the image points span, the same linear subspace as the row vectors composed of 3D space points span and that a basis of the subspace can consist of two row vectors composed of all the image points and one row vector in 3D space that is orthogonal to the former. The row vector can be determined, and the 3D reconstruction is accomplished. The novelty lies in the fact that the method can treat all the image points uniformly.

利用所有图像序列构成的行向量生成的子空间之和与三维空间点构成的行向量生成的子空间是同一线性子空间、同时由所有图像点构成的2个行向量外加一个行向量就可以组成该子空间的一个基底的特性，线性地求取子空间中的行向量，最后完成三维重建。

Shape and color characteristics were used to form the separated pattern vector and RBF network was used as classifier for each pattern. Each classifier was linearly combined to give the final identification result. Shape pattern consists of rectangularity, elongation, roundness, sphericity, lobation and seven movement invariants. R, G, B, L histogram and R.G chromaticity histogram were treated as separated color characteristic vector.

昆虫图像的形态特征值由矩形度、延长度、球状型、叶状型、似圆度和 7个Hu不变矩等12个特征值组成，颜色特征值由红、绿、蓝、灰度真方图及基于红、绿的二维色度直方图特征值分别组成，然后建立径向基神经网络分类器，每一特征向量由独立的径向基神经网络做为分类器，最终识别由每个分类器识别结果的线性组合而成。

The offset direction is defined by the local coordinate system, which is formed of the tangent vector and the normal vector of every point on the curve.

本文利用曲线上各点的切向量和法向量所形成的局部坐标系来确定等距方向，从而给出一种广义偏距曲线的新定义。

In accordance with the basic principle and method of vector control, by using Matlab/Simulink module, a simulation model of vector control system that is offering torque and magnetic link for AC asynchronous motor is built based on rotor flux directional rotating coordinates.

依据矢量控制的基本原理和方法，在基于转子磁场定向的旋转坐标系下，采用Matlab/Simulink模块构建了一个具有转矩、磁链闭环的交流异步电机矢量控制系统仿真模型。

To improve accuracy of detection of current direction, components of magnetizing current and torque current are transformed into two-phase stationary frame. Therefore compensating voltage vector can be decided according to the sector the current vector is locating.

为了提高电流极性检测的准确性，利用旋转轴系中的励磁电流和转矩电流分量经过坐标反变换，判断电流在两相静止轴系所处的扇区来决定需要施加的补偿电压。

In this paper, a new model adaptation using vector Taylor series is presented, which adapts the mean vector and covariance matrix of hidden Markov model.

该文将矢量泰勒级数用于模型自适应，同时对HMM模型的均值向量和协方差矩阵进行变换，使其与实际环境相匹配。

Using the powerful calculation capability of MATLAB for matrix,and adopting vector ring and vector chain equation,the paper calculates and imitates the characteristic of kinematics and kinetics about equivalent force model of plane machinery.

利用MATLAB软件对矩阵强大的计算能力，采用矢量环与矢量链方程对平面机构的等效力学模型的运动学特性和动力学特性进行计算仿真，主要针对机构的速度波动特性进行了仿真和分析。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。