1、

Study of spatial three-dimensional divergent method of pore aquifer system based on GIS

基于GIS的孔隙含水层系统三维空间离散方法研究

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2、

The spatial similarity of groups were displayed by GIS using compound of three primary colors to represent three dimension configuration of group similarity transformed from intra_group climatic variable mean matrix.

各类型的气候因子平均值经矩阵转换构成三维相似空间,分别以三原色的色调代表各气候类型在不同维上的相似距离,用GIS以合成色彩表示各气候类型的空间相似程度。

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3、

The algorithm based on time and spatial domains is that video image sequences regard as a three-dimensional array, then use 3D DT-CWT threshold to remove the blocking artifacts.

本算法采用基于时-空域对视频序列进行块效应去除,将视频图像序列看成三维数组,再采用三维双树复数小波3DDT-CWT(Three dimensional DT-CWT)阈值法进行去噪。

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4、

In this thesis, the parabolic stability equations ( PSE) in the different coordinate systems are driven from Navier-Stokes ( N-S) equations. The stability problems of the boundary layers for three-dimensional body, and the spatial evolution process of the C-type instability are studied.

本文从Navier-Stokes(N-S)方程出发,导出了不同坐标系下的抛物化稳定性方程(PSE),研究了三维物体的边界层稳定性问题,以及三维扰动的C型失稳的空间演化过程。

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5、

A model for its static and dynamic analysis of a large deformation spatial beam is developed, based on the virtual work increment equation for three-dimensional continuum, considering effect of shearing and warping deformations.

以三维连续体增量虚功原理为基础,建立了空间大挠度梁考虑剪切影响的静态分析模型和动态特性分析模型;

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6、

The system developed a number of function plug-ins, implement map browsing, free zoom, roam the map, map measurement, three-dimensional display, layer control, query, spatial analysis, GIS thematic map production and other common functions.

系统开发了多个功能插件,实现地图浏览、地图自由缩放、地图漫游、地图测量、三维显示、图层控制、查询、空间分析、专题图制作等GIS通用功能。

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