矩

Through analyzing the rheological properties of PVC high polymer,the rheological characteristics of PVC in an extruder and that in a rheometer were discussed,and the correlation of these two kinds of rheological characteristics were described as well as their application.

通过分析PVC高聚物的流变性能，讨论了PVC物料在挤出机中和转矩流变仪中的流变特征，阐述了两种流变特征的相互关系及应用。

A new kind of excitation source model, which is more approximate practical situation, is presented. Based on the results, the input impedance, gain and directivity of a rhombic antenna is analyzed by using moment method and microwave network theory.

针对卫星通信拥挤、短时无法补充的缺陷，提出了一种新的更接近实际的平衡激励源处理方法，并在此基础上利用微波网络理论与矩量法相结合，系统地分析、计算了菱形天线的输入阻抗、增益及方向特性。

Further more, the main reason of the torque ripple is analyzed by simulation in the viewpoint of energy.

另外，从能量的观点仿真分析了SCLRM动态转矩波动的主要原因。

According to the change of the motor parameters, the torque ripple is analyzed based on the model .

永磁交流伺服电动机的转矩波动直接影响系统的控制精度，是最为关注的伺服性能指标之一。

Considering the characters of the waveform of impulsive noise, on the base of robust statistics, the thesis uses the robust statistical function mending the customary adaptive algorithm based on second order statistic, applies it to the system identification problem.

考虑到α-稳定分布波形的性质，在稳健估计理论的基础上，利用稳健估计函数改进了原有的基于二阶矩的自适应算法。

At the same time a subdivision method for constant amplitude rotating current vector is adopted to achieve the equal subdivision control of stepping motor's constant torque.

同时采用电流矢量恒幅旋转的细分方法实现了步进电机恒转矩均匀细分控制，提高了步进电机的分辨率和运行稳定性。

ResultsThe shapes of fruit are usually different from each other;there are obvious differences in color;the types of ornamentation of fruit coat are mainly similar to ruga and washboard.

结果果实形态多为椭圆形、卵形和矩圆形；颜色为灰褐色至黑色；表面纹饰以皱褶状和搓板状为主。在大小、表面纹饰等方面表现出明显的种间差异。

Methods8 species of its fruit were observed under light microscope and scanning electron microscope, and most of them were examined for the first time.resultsthe shapes of fruit are usually different from each other;there are obvious differences in color;the types of ornamentation of fruit coat are mainly similar to ruga and washboard.

方法对菊属8种植物的果实进行了光学显微镜与扫描电子显微镜下的形态特征观察研究，其电镜资料为首次报道。结果果实形态多为椭圆形、卵形和矩圆形；颜色为灰褐色至黑色；表面纹饰以皱褶状和搓板状为主。在大小、表面纹饰等方面表现出明显的种间差异。

The influencing factors that glutathione molecular umbrella penetrates lipid bilayers with the shielded conformation were analyzed with VolSurf parameters. The results show that the major influencing factors are smaller amphiphilic moment and larger molecular rugosity of the shielded conformation, which are independent of definite hydrophobic regions of the conformation.

利用VolSurf参数分析了分子伞以屏蔽构象穿透磷脂双分子层的影响因素，结果表明屏蔽构象较小的两亲矩及较大的分子褶皱程度是其能够穿透细胞膜的主要影响因素，与构象的绝对疏水区域无关。

Image Recognition;Small Sample;Invariant Moment;Neural Network;Support Vector Machine

图像识别；小样本；不变矩；神经网络；支持向量机

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。