查询词典 moments method

The method of moments is used to establish the linear equationfunctions and the currents can be calculated by solving these functions.

利用矩量法建立线性方程组，通过求解这个线性方程组，得到各个基函数上的电流值，从而很容易地计算出天线的辐射和阻抗特性。

By using the method of moments ,the integral equation can be discretized into matrix form.

建立起反演积分方程，将积分方程离散化为矩阵方程，用迭代方法求解目标区电导率分布。

Finally, applying the current basis function of three-term sinusoidal expansion, the radiation characteristic and input impedance of the vertical and horizontal antennas above lossy ground are analyzed by the method of moments with the variation of frequency, height from the ground and ground parameters.

最后，用矩量法，采用正弦插值基函数，研究地面上方垂直、水平线天线的辐射特性和输入阻抗随着频率、离地高度、地面参数等变化的情况。

A comparison of the present method with the Probability Weighted Moments indicates that the two methods are comparable to each other both in unbiasedness and in efficiency for the studied cases.

统计试验结果表明，修改后的双权函数法无偏性方面优于矩法，有效性与矩法相当；与PWM法的部分结果对比表明，两者统计性能接近。

A method to detect ellipses and circles rapidly is proposed by invariant moments.

为了能快速识别椭圆曲线，给出了利用不变矩的识别方法。

Tables of seconx dary fixed end moments for prismatic and haunched beams with straight and parabolic tendons have been prepared for use in practical applications, A method of using concordant pressure line for the elimination of secondary forces due to prestressing is introduc...

本文并介绍了采用协调压力曲线以消除因予加应力所引起的附加内力的方法，同时介绍了通过施工方法消除因收缩与蠕变所引起的附加内力的方法。文中并对按极限状态理论计算超静定予应力钢筋混凝土结构的问题作了一般性的探讨。

According to this method, the end-moments produced by loading and those pro-duced by sidesway need not to be determined separately and afterwards super-posed.

继在各个杆端将荷载所生的定端力矩与侧移所生的定端力矩叠加，而得各该杆端的总的定端力短。

The stereo image pair is acquired by a pair of calibrated cameras. Global disparity of foot is estimated at first. After the image pair is preprocessed automatically, using non-contact information-collecting technique and phase-correlation method, which is based on complex wavelet, surface matching with sub-pixel accuracy in the frequency domain is carried out. By taking order matching constraint, continuity constraint and correlation constraint together, 3D point cloud of foot is reconstructed and 3D model of foot is built by mosaicking point cloud at various angles automatically. After normalization, high-order moments are compared, which is useful for the subsequent shoe last design.

运用已标定的双目照相机拍摄立体图像对，进行足部整体视差估计；在对立体图像对进行自动预处理后，采用非接触式的信息采集技术，运用基于复小波的相位相关技术对足部表面进行亚像素级小区域频域匹配，考虑顺序匹配约束、连续性约束和相关性约束条件，重建足部密集三维点云信息，并自动拼接不同角度点云生成相应的足部三维模型；对其归一化后，提取其高阶矩向量进行比对，为后续的三维鞋楦设计提供必要信息。

Momentum is a Full-Wave Method of Moments simulator intended to be used for RF and Microwave component, circuit and planar antenna analysis.

Momentum是一个基于矩量法的全波仿真器，它主要用于分析RF及微波元器件、电路及平面结构天线。

They are mainly: the probe-fed square patch antenna with shorting pins,and the probe-fed rectangular patch antenna with a pair of wide slits (E-shaped patch). The analyses were carried out using method of moments software package. It is shown that the probe-fed square patch antenna can be made resonate at three different frequencies of 1.83 GHz,2.16 GHz and 2.74 GHz respect...

同时，采用基于MOM的软件包分析了天线性能，证明方形天线可以工作在3个频率点，即1.83GHz、2.16GHz和2.74GHz，其最大的增益达到9.4dB；E形天线工作在2.13GHz和2.5GHz，当中心频率为2.4GHz时，带宽达到33.33%(反射损耗≤-10dB)，其最大增益为9.25dB。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。