查询词典 cross action

Nonreversible chemical reaction involving sulfur or other suitable agent wherein cross links are formed between molecular chains in rubber materials.

硫化是采用硫或者其它适当添加剂处理橡胶原料过程中发生的不可逆化学反应。此种反应在橡胶的分子链间形成横向连接，橡胶的弹性模量和强度会得到提高。

In the last part of this dissertation, we discuss how to model an image is discussed and how to segment an image by EDEK.Zero-Cross principle is a classical concept in signal processing. We generalize the concept to be zero normal curvature after the geometry frame built. Furthermore, we present the explanation to choose the dual parameters in SPMVIF. And we research why the Laplacian gradient superior to edge gradient.

梯度方向二阶导数过零原理是信号处理中的经典结论，在运用微分几何的知识建立SPMVIF的几何框架的同时，将这个结论推广到零-法曲率的形式；另外我们对SPMVIF的双参数选取规则进行了讨论并给出它们的几何意义，并且对SPMVIF中法向矢量选取时拉普拉斯梯度优于边缘图像梯度的结论给予统计信息熵的解释。

The results show that because of fourth-order dispersion,cross-phase modulational instability occurs at two spectrum regions in both the normal and the anomalous dispersion regime of fiber.

结果表明：由于四阶色散的影响，在色散缓变光纤的正、反常色散区，交叉相位调制不稳定均发生在两个频谱区。

It is shown that because of the fourth-order dispersion,cross-phase modulational instability occurs at two spectrum regions in both anomalous and normal dispersion regimes of fiber.

结果表明：由于四阶色散的影响，在光纤的正常、反常色散区，交叉相位调制不稳定性均发生在两个频谱区。

Throuth computer simulation, we have numerically investigated the effect of pulse walkoff on optical pulse compression based on cross phase modulation in the normal dispersion regime of single mode fibers.

通过数值模拟，分析了脉冲离散效应对单模光纤正群速色散区基于暗孤子交叉相位调制的脉冲压缩的影响，并提出了减轻这种影响的办法。

The NCCFPDA (Normalized Cross-Correlation Function Pitch Detection Algorithm) is studied and improved in this paper.

研究和改进了一种基于归一化互相关系数的基音检测方法。

This method, based on the normalized cross-correlation function, is the modified Speckle Pattern Correlation method in the application of the digital image processing technique to the speckle pattern metrology.

该法实质上是借助数字图像处理技术，通过物体位移前后二个散斑场之间的相关性来进行位移测量方法的发展。

He also has engaged in numerous public art and cross-media projects in the North-East.

他还在东北部从事了许多公众艺术和交叉媒体的项目。

Cross the road and take a northbound No. 38 bus to the Central Hotel and then change there to the No. 24 bus. It will take you right there.

穿过马路到对面乘向北走的38路汽车到中央酒店站，然后在那儿换乘24路汽车，直接就可以到达了。

The next morning we had to cross the river to Pukou and to take the northbound train.

到南京时，有朋友约去游逛，勾留了一日；第二日上午便须渡江到浦口，下午上车北去。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。