Firstly, DEM model of this district generated by GIS and TM image was overlapped, and fetch relative data.
首先，运用GIS相关软件生成研究区的DEM模型并与其TM影像进行叠加，提取相关数据。
Moreover, a new technique for calculating the strain and stress of DEM model has been proposed by using the concept of meshless method.
通过无网格技术，改进了离散元法应变、应力的计算方案，使其能够在连续介质大变形的计算中得到更为准确的应变、应力分布。
By means of GIS method, the digital elevation model(DEM)is established, the subcatchment boundaries are studied.
利用GIS方法建立了数字高程模型（DEM），研究了子汇水面积的边界。
Combining with particle impact heat transfer model, DEM method is also used to systematically simulate the heat transfer process in fluidized bed at the level of particle.
将DEM方法与颗粒碰撞传热模型结合，在颗粒层次上对密相流化床内的传热过程进行了较为系统的数值研究。
For example, Digital Elevation Model (DEM) data points are equally arranged in a grid pattern.
例如，数字高程模型(Digital Elevation Model,DEM)数据点在网格图形中均匀排列。
Digital elevation model (DEM) is the fundamental infrastructure of geographical information systems and has wide applications in both military and civil areas.
数字高程模型(dem)是重要的基础地理信息数据，在军事和民用领域有着重要的应用价值。
The hydrological simulation based on DEM has become one of the hot topics of hydrological model.
基于DEM的流域水文模拟已成为近年来流域水文模型的热点之一。
Digital elevation model (DEM) analysis is one of the most effective methods for studying surficial processes and geomorphology.
数字高程模型(dem)是人们研究地表过程、构造地貌的一种行之有效的方法和手段。
This paper discusses the methods of automatic extraction of digital elevation model (DEM) from remote sensing image. A system of scheme is established to extract DEM from SPOT image.
本文研究了利用航天遥感影像自动提取数字高程模型（DEM）的方法技术，建立了一整套利用SPOT影像提取DEM的方案。
The key problem to generate automatically the digital elevation model (DEM) by three-line CCD camera for photographic measurement is the stereo image matching technology.
利用三线阵c CD图像自动提取数字高程模型(dem)的关键问题是立体像对的匹配相关技术。
However to produce high accuracy DEM, the technique of digital photogrammetrics and stereoscopic model are needed to editor DEM.
但要生产高精度DEM，一般是采用数字摄影测量方法，借助于立体模型对DEM进行可视化编辑、修改。
Through analysis of the sensitive parameter CN of the SCS model, the sensitivity of runoff modeling to DEM resolution is described from the perspective of slope change.
根据SCS模型敏感参数cn，从坡度参数变化角度分析了不同分辨率的DEM对流域径流量影响。
By means of GIS method, the digital elevation model(DEM)is established, the flow direction, flow accumulation, subcatchment boundaries and stream network spatial distribution are studied.
采用GIS的方法，建立了环县数字高程模型（DEM），研究了本区地表水流方向、集流能力、子集水区的划分及水系网络空间分布等水文特征。
This paper studies the application of digital elevation model (DEM) to the design of the surface drainage ditch system.
研究数字高程模型(DEM)在滑坡地表排水辅助设计中的应用。
Abstract : When using the Range-Doppler model for SAR image geometric correction, the error of satellite orbit, imaging parameter and DEM elevation will affect the geometric correction accuracy.
摘要 ：使用距离多普勒模型进行SAR影象几何校正时，卫星轨道误差、系统成像参数误差和DEM高程的误差会影响几何校正精度。
Otherwise, based on DEM, digital model of KSD distribution, digital Se model and profile-map analysis, the research has a quantitative analysis of macro change rule in microelement distribution.
另外，建立了数字高程模型、数字克山病分布模型、数字硒模型并作剖面图分析，定量分析了地形与微量元素分布的宏观变化规律。
Taking the shield machine tunneling in a subway section as the research object, the DEM geometrical model for analyzing the chamber pressure of the shield machine is established.
以某地铁标段施工的土压平衡盾构机为研究对象，建立了盾构密封舱土压力系统离散元仿真的几何模型；
Based on remote sensing technology the GIS grid model generated by digital elevation model (DEM) is utilized to analyze the flood submergence.
在遥感与GIS技术的基础上，应用数字高程模型(DEM)生成的格网模型进行洪水的淹没分析。
The discrete element method (DEM) is introduced, which includes hard sphere model and soft sphere model.
着重介绍了非连续介质模型中的离散元法(dem)：硬球模型和软球模型。
Taking the comprehensive evaluation of "DEM" as an example, the model of fuzzy comprehensive evaluation for "DEM" is based.
并以DEM产品质量的综合评价为例，建立了DEM产品质量的模糊综合评价模型。
The model presented here only USES a digital elevation model (DEM) to compute direct solar radiation, time of irradiation and simply diffuse radiation.
本模型只需数字高程模型(dem)就可计算太阳直接辐射、日照时间和简化的散射辐射。
These values obtained by DEM simulation are close to that obtained by prediction model.
结果表明，模拟试验值与模型预测趋势一致。
Water depth data (main parameters), which was matching to model's grid structure, was obtained by using the function of GIS digital elevation model (DEM) to linear-interpolate the isobath of chart.
在模型参数求取中应用了GIS的数字高程模型(DEM)功能将海图等深线通过线性内插得到与模型网格相匹配的具有栅格结构的水深数据(模型的主要参数)。
The equivalent discrete element model of the conditioned sands is provided, on the basis of which the DEM numerical model of the slump test and the shear test of the conditioned sands are established.
提出了改性砂土的等效离散元模型，在此基础上建立改性砂土坍落度实验和直剪实验的离散元数值实验模型。
A set of algorithms for extracting drainage network from digital elevation model (DEM) based on ground water overflow model is introduced.
介绍基于地表径流漫流模型从数字高程模型(dem)提取水系的一系列算法。
Under fly model, already corrected TM and DEM images are set up, which can form three-dimensional flying model of remote information.
在FLY模块下，分别装入纠正好的TM影像和DEM，即可生成遥感信息三维飞行数据模型。
Digital Elevation ModeI (DEM) is a common model of three dimension terrain, and digital analysis is mainly based on DEM.
数字高程模型(DEM)是一种常用的三维地形建模数据模型，三维地形的数字分析主要是针对dem模型的。
Digital Elevation ModeI (DEM) is a common model of three dimension terrain, and digital analysis is mainly based on DEM.
数字高程模型(DEM)是一种常用的三维地形建模数据模型，三维地形的数字分析主要是针对dem模型的。
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