查询词典 vector field

And the perfect Q-vector was applied to diagnose a heary rain process for August 3～5, 1996. The results showed that there were more advantageous using the perfect Q-vector, and suggested that the perfect Q-vector could clearly reveal the system development of the heary rain; the divergence center or line, the divergence field and the frontogenesis function field of the perfect Q-vector could be used to locate the heary rain area; the center magnitudes of the perfect Q-vector divergence field and the frontogenesis function field could be signified the intensity of the heary rain.

结果表明，完全Q矢量能较清楚地揭示暴雨天气系统的演变；考虑了湿过程的完全Q矢量在暴雨的诊断过程中显示了其更大的优越性；定性而言，完全Q矢量散度的辐合中心或辐合线、散度场和锋生函数场有助于确定暴雨的落区，暴雨区正好落在低层完全Q矢量散度场辐合中心和锋生函数场正值中心之间；定量而言，低层完全Q矢量散度场辐合中心和锋生函数场正值中心大小对暴雨强度有显著的指示作用。

The method can cover more points in one streamline, it is fast enough to visualize vector field interactively.

由于该方法一条流线上覆盖了更多的点，提高了计算速度，可达到交互可视化的要求。

Let be a vector field, where ,,have continuous first derivatives.

设是一向量场，，，有一阶连续偏导数。

In accordance with the vector field existence and uniqueness of the traveling wave solution were proved.

根据相量场说明满足条件的行波解是否唯一存在。

Through proving feasibility and validity of fast Clifford Fourier transform, a new method of vector field data analysis is introduced.

通过证明快速Clifford傅立叶变换的可行性和有效性，介绍了应用快速Clifford傅立叶变换对矢量场数据进行分析的新方法。

We present a novel approach for vector field guided solid texture synthesis from 2D examples.

提出一种考虑方向场的体纹理合成新方法。

Firstly, this paper studied on the existing technologies in the field of wireless sensor networks, then introduced the existing routing protocols such as Beaconed Tree Mode Routing Protocol, LEACH, AODV and so on.

首先，本文讨论了无线传感器网络的发展概况，进而引出了低功耗和相应的基于Beacon~1的树状路由、LEACH(Low-energy adaptive clustering hierarchy)、AODV(Ad hoc On demand Distance Vector Routing Protocol)等路由协议。

Through merging the grids over the physically less important subregions and computing new topology skeleton of the vector field defined on this area, a physical feature preserving topological simplification is performed perfectly. Meanwhile, a remarkable data compression is implemented as well.

通过合并次要物理特征所在区域上的网格及在新网格布局下重新提取向量场拓扑，该算法不仅能完好地保持场内的重要特征，还能同时实现向量场的数据压缩。

First an advanced snake model based on the gradient vector field was used to segment the contour of the left ventricular and an initial snake line of the contour was got, then optical flow method was used to track the contour of the LV in the successive images. Finally, the Simpson method was applied to calculate the volume of the LV.

首先采用基于梯度向量流的主动轮廓模型对左心室内膜进行分割获取初始轮廓线，再采用光流法跟踪得到心脏序列中后续帧图像的心腔内膜轮廓线，最后采用Simpson方法计算得到左心室容积。

The guidance vector field can be procedurally generated, or computed from 3D medical images.

方向场可由过程式方法生成，也可由三维医学数据处理而得。

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。