grid cells

This structure not only stores non-empty grid cells , but also keeps their relative position relationships , so as to improve storage and retrieve efficiency .

该索引树结构仅存储非空网格单元，并保持网格单元之间的位置关系，以提高聚类时的存储和检索效率。

As to the STING algorithm , the tune complexity of clustering isO ( n ), but the time complexity of query is O ( g ), where g is the number of grid cells at the lowest level and g is far smaller than n.

如STING算法，产生聚类的时间复杂度为O（n），但查询处理时间是O（g），g是最低层网格单元的数目，通常g远远小于n。

Computation of seismic first-arrival times in triangular grid cells

三角网格中地震波初至旅行时的计算

We recommend an accurate fast new algorithm for computing the seismic first arrival times in triangular grid cells .

本文提出一种在三角阿格中计算地震波初至旅行时的精确、快速新算法。

The new proposed algorithm judges whether grid cells are connected , and guarantees the clustering results of different shape of clusters .

并充分利用网格聚类算法的特点，通过判断网格是否相连，保证对于不同形状聚类的聚类效果。

The method of making leaning field grid cells consists of drawing by hand and drawing with the help of a computer program .

划分倾斜网格的方法有手工绘制和编程绘制两种。

In this work , in order to define various regions of interest , 3-dimensional environment is divided into cubic grid cells .

在这个工作中，为了定义各种感兴趣的区域，三维环境被划分成立方体格子单元。

The algorithm with this approach may have some inconsistency and thus will have O ( 1 ) magnitude errors in some grid cells some time .

由于采用了此技巧就会使得算法在某时刻在某网格上会存在非相容性并且会产生O（1）强度的误差。

The chief applications of the field grid cells include sampling navigation , the creation of a thematic map and grid cell identification in the field .

网格划分主要有采样导航、专题图制作和田间识别等重要应用。

High-aspect-ratio and anisotropic tetrahedral grid cells are constructed in viscous dominated flow regions by advancing-layers method ( ALM ) .

在物面附近的粘性作用区域，采用推进层方法生成各向异性的扁平四面体网格，并通过一定的网格伸长控制参数，实现整个流场区域网格高度的平滑过渡。

Then , the Particle-tracing Method is designed , which calculates the advection term by setting some particles in the grid cells and tracing them .

然后，本文又设计了质点跟踪法，该方法通过在网格内设置一些质点并对质点进行跟踪来计算平流项。

One decomposes the domain using a given subdomain size defined by the number of grid cells in a subdomain and each CPU may compute more than one subdomain .

一种方式是将整个区域按CPU数进行分解，每个CPU计算一个子域；

The improved nonlinear lumped network ( INL ~ 2N ) - FDTD method has been used to analyze the Schottky diode in more than one FDTD grid cells .

提出了一种改进的非线性集总网络算法（INL2N），解决了肖特基二极管在FDTD法中轴向占多个网格情况的处理方法；

A new algorithm using density pointer is proposed to initialize cluster centers . The density pointer ( DP ) algorithm takes the geometric centers of grid cells as symmetrical centers .

提出了一种采用密度指针的聚类中心初始化方法&densitypointer（DP）算法。

The solution of these problems has an important influence on optimizing clustering algorithms of stream systems , application and so on . Firstly , an index tree structure Pks-tree is designed to store grid cells .

这些问题的研究对现有数据流系统的聚类分析功能的优化以及在具体领域的应用具有重要意义。首先，设计了一种基于网格划分的索引树结构Pks-tree。

Under the consideration of required fertilizer prescription data structure in the fertilizer machine , the vector prescription with the grid cells can integrate organically with fertilizer machine by adopting the Coordinate WGS-84 System .

充分考虑施肥机对施肥处方数据结构要求，在WGS-84坐标系下采用具有栅格单元的矢量施肥处方。

This algorithm includes the following four procedures : ( 1 ) Automatically recognizing and signing the grid cells located in each river basin according to the flow vector raster data and the classified river raster data ;

该算法包括以下四个进程：①以水流方向数据和自然水系的分级标识数据为依据，将同一级别每一条水系汇水盆地内的栅格自动识别出来；

Based on the finite element method and finite difference method of the GPR forward modeling are need to divide a large number of grid cells , the form of grid cell and size has a direct impact on the calculation accuracy and the computation time is every large .

基于有限元法和有限差分法的探地雷达正演模拟需要对计算区域进行网格剖分，剖分形式与网格大小对计算精度有直接影响且计算开销大。

Based on the Pks-tree , a corresponding clustering algorithm is implemented to get final results by traversing storage structure and marking grid cells with different cluster labels . Secondly , a new approach for clustering evolving data streams is proposed , which is based on grid density and correlation .

在Pks-tree的基础上设计基于网格密度的数据流聚类算法，通过遍历Pks-tree，并标记不同的网格单元来获得聚类结果。其次，提出了一种基于网格密度和关联度的数据流聚类算法。

The GridLayout element specifies the dimensions of a grid of cells that components can occupy .

GridLayout指定了由一个单元网格组成的维度，用于容纳组件。

It creates a2-D grid of cells .

它创建了2-D网格的单元格。

At first , the coverage area is divided into a grid of cells . The map layers of landforms are overlayed on the cells and geographical and special attributes of geographical elements are saved in corresponding cells .

首先，将网络覆盖范围划分成等边长的正方形网格，将地形地貌图层与网格叠加，将地理元素的地理属性和专题属性投影到网格中。

Study of the Chemical Plating Accurate Grid of Solar Cells

化学镀精细太阳电池栅线的研究