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Secondly, interpret the water-bearing status of drainage-base substance fromTM,according to the water-bearing spectral features,using GIS and RS technologies,based on thesurveying hydrologic data,and build up the projectional mathematical model of the Karstdrainage low-flow resource, in order to solve the calculation of the amount of low-flow resourcesin no documents and data regions.
二是以实测的水文数据为基础,利用 GIS 和 RS 技术,根据赋水光谱特征,从 TM 影像判读枯季流域下垫面物质赋水状况,建立喀斯特流域枯水资源预测的数学模型,用于解决无资料、无数据地区枯水资源量的计算。
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Methods 10 specimen of adult cadaver heads were collected and the following data was measured under microscope: the distance between the pterion and seller region, and that between the pterion and anatomical landmarks of the middle cranial base as well as the angle between them, which provided data basis for choice of various surgical instruments.
方法在显微镜下对10例成人尸头,测量其颞部锁孔下翼点至鞍区和中颅窝底解剖标志的距离和角度,为手术器械的选择提供依据,并对鞍区和中颅窝底不同解剖间隙进行观察。
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Our effort is on the base of TOSHIBA 1MR—15 linear accelerator and PH- ILIPS OSS radiotherapeutic plan system,put the data of American Varian therapy device into O SS system,then merge the data of LMR—15 and Varian two kind of therapy devices into a DIF document,put it into OSS system,so reach the function that OSS system surports two kind of therapy devices at the same time.
本工作是在东芝LMR—15直线加速器和菲利浦公司的OSS放射治疗计划系统的基础上,将美国Varian治疗机数据装入OSS系统,进而将LMR—15和Varian两种治疗机的数据合并为一个DIF文件,装入到OSS系统中,实现了OSS系统同时支持两种治疗机的功能。
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The results showed that:(1) some governing points, which were measured by submeter precision GPS, were utilized to correct the 1 m precision remote sensing image and it could satisfy the desired precision of geometrical correction, therefore, this method could be used as geometrical correction in the region where was short of the big scale relief map;(2) the density of the original data was the main factor to affect precision of the volume, and the precision of the calculated volume of earthwork could be improved to more than 90% when using the test points and feature points; the sparser the data density were, more significant could be improved; On the base that elevation of test points were measured by the submeter precision GPS, the error of the volume, which was produced by vectoring relief map to obtain DEM, could be calculated, and the calculation precision of the earthwork could be improved markedly.
结果表明:利用平面精度达亚米级的GPS测量控制点坐标对1米分辨率的遥感卫星影像进行几何校正,能够满足其几何校正的精度要求,可以解决缺乏大比例尺地形图地区的高分辨率遥感卫星影像的几何校正问题;通过对模型数据的分析,数据密度是影响体积精度的主要因素,利用检测点高程和特征点可以提高土方量计算的精度,使土方量计算的精度达到90%以上,数据密度越稀疏,精度提高越显著;采用高程精度达厘米级的RTK(Real Time Kinematic实时动态差分)测量检测点的高程,对用地形图扫描矢量化形成的DEM模型进行检测求出误差体积,可以大大提高土方量的计算精度。
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Considering the difference of the use of clustering algorithms caused by the diffference of data distribution, on the base of the analysis of Kmeans algorithm, fuzzy Cmeans algorithm and genetic algorithm, a new algorithm was brought forward based on the genetic algorithm and the improved neighbor function criterion. In view of the intrinsic connection of the special and the advantage of genetic algorithms wholesearch strategy, to a certian extent, this new algorithm solve the problem about the uncompact and irregular data distribution.
考虑到空间数据分布特性差异造成聚类算法采用的不同,在比较分析K均值算法、模糊均值算法和遗传算法的基础上,提出了改进的近邻函数准则,并有机整合形成遗传算法与改进近邻函数准则的新算法,综合了遗传算法的全局性概率搜索的优点,并考虑到空间数据内在的连接方式,在一定程度上较好地解决了数据的非致密非规则分布问题。
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On the base of reviewing the development of NSP models, some deficiencies of existent models are analysed and listed as follows: most models can be applied only to very small watershed; mechanism models involve too many parameters which can not be calibrated properly by limited data; amoung practical models, empirical models are much more common than mechanism models; most models are focus on the conservative soluble pollutants rather than non-conservative and particulate pollutants; almost all models rely highly on the measured data, and there are fewer studies about the load estimation for ungauged areas.
本文在评述非点源污染模型研究进展的基础上,分析了现有模型的不足,主要有:大多数模型只能适应于很小的流域面积;机理类模型参数过多,率定困难,应用效果不理想;实用模型中,经验类模型多,机理类模型少;对保守性的液态污染物研究得较多,对非保守性和固态污染物研究得较少;各类模型均高度依赖于实测资料,无资料地区的模型或预测方法研究得很少。
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In this paper,we use geostatistics to analyse special variability of soil salinity in Yanqi Basin of Xinjiang base on soil salinity data,and then we predict and draw the soil-salinity-class maps including unsampled region,it shows: the soil salinity data's Cv are not less than 100% and have very strong special variability;the spherical model f...
在焉耆盆地大规模的土壤取样、试验分析盐分数据的基础上,采用地统计学的方法对研究区的土壤盐分进行了空间特征变异分析,并采用普通克里格插值法制作出焉耆盆地的土壤盐分空间数字地图,结果表明:研究区各层土壤盐分变异系数均大于100%,具有强空间变异性;对土壤盐分进行半方差函数计算分析,发现拟合的理论模型均为球状模型,各层土壤盐分表现出强烈的空间相关性;土壤盐渍化程度在水平方向的分布与地形地势的关系密切,在垂直方向则表现出强烈的表聚特性。
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This research achievements is the result at the base of field geologic data colligating with the data of some drilling and seismic, and of the combining of sedimentology and tectonic geology researches, theory and practice researches, actual measurement of skeleton sections and observation of complemented sections, macroscopical studies and microcosmic studies. The classification and characteristics of sedimentary system and the genetic types and expression form are systematically analyzed in the thesis, and the division scheme of the Youjiang basin is put forward.
研究成果是以大量的野外地质资料为基础,综合了部分钻井和少量地震等资料,采取沉积研究和构造研究相结合、理论研究和实际研究相结合、实测基干剖面与补充观察剖面研究剖面相结合、宏观研究和微观研究相结合的方法,系统地分析了右江盆地的沉积体系种类和特征、层序界面的成因类型和表现形式,进而提出了右江盆地的层序划分方案。
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On the platform of VB6.0 and Microsoft Access, by studying the measurement methods and data processing principles of differential pressure meter, base point's method with air gauge and double point's method with air gauge, data processing software was developed about resistance measurement for mine ventilation.
在研究压差计法、气压计基点法和气压计双测点法3种常用矿井通风阻力测定方法及其数据处理原理的基础上,以VB程序语言和Microsoft Access数据库管理软件为平台,开发了矿井通风队力测定数据处理软件。
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The opened 4-layer structure data exchange model was put forward on base of analyzing other net data exchange protocol in order to ensure the reliable communication .
针对家庭控制网络的特点,在分析其它家电控制协议的基础上设计了四层网络结构的开放型数据交换模型,并且设计了控制网络数据通信协议,以确保通信的可靠性。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。