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The article begins with data model, with the theories of binary relation, function dependence and Fan's, establish the measures of query and the safety of database, which provides theories for developping DFDS in de...

论文根据钻探泥浆数据库系统的开发要求从研究数据模型入手,利用二元关系、函数依赖及范式理论对数据模型进行较为详细的分析,建立了数据库的查询优化措施和安全方法,为钻探泥浆数据库的具体设计提供了理论依据。

Using bipartition model of electron transport proposed by applicants, combined with Fermi-Eyges theory, a new pencil beam model, hybrid electron pencil beam model, was proposed.

应用申请人提出和发展的电子输运两群理论并结合Fermi-Eyges理论,提出了一个新的笔束模型—电子混合笔束模型。

The statistical theory and the grand canonical ensemble are used, in it the matter and energy can be exchanged. The paper is divided into four parts.

我们所用的理论模型是统计模型,系统有物质和能量的交换,采用的是统计理论下的巨正则系综。

The research results show:(1) we combine time series method with the dispersed Markov Chains theory of stochastic process, and present a Markov Model based the time series analysis for predicting the precipitation for groundwater resources evaluation. Results show that the time series-Markov Model is efficient, and it has higher accuracy than that of the single model of time series;(2) started from the systematic point of view, we analyze the metabolic process of groundwater, establish the ultimate metabolic equation of groundwater for protecting the water resources, and discuss the value of reducing evaporation for making full use of the water resources;(3) Through a theoretical analysis of the results of the experiments, we draw a conclusion: the critical depth on evaporation of groundwater is in step with the height of the maximal capillary rise of media.

通过理论分析与实验研究,得出主要结论如下:(1)论文将传统的时间序列方法与随机过程马尔可夫预报模型相结合,以预报大气降水量,并用于地下水资源评价,创造性的提出了地下水资源评价中降水量的时序——马尔可夫预报模型;(2)论文从系统的观念出发,分析了地球水循环中地下水代谢过程,建立了旨在保护水资源的地下水极限代谢条件方程,并进一步阐明了减少蒸发量和增加补给量在水资源保护中的重要作用;(3)论文通过实验研究和理论分析,论证了潜水蒸发存在极限埋藏深度,得出了潜水蒸发极限埋深与介质最大毛管水上升高度一致的重要结论。

Automobile smooth-going characteristic imitating model is set up. This model provide theory basis for zhe automobile design and development.

运用随机振动理论和计算机技术对汽车进行了模拟仿真,建立了汽车平顺性仿真模型,该仿真模型为汽车设计和开发提供了理论依据。

In order to further reveal and distinguish the dynamics and changing regularity of the stochastic integer multiple spiking and the deterministic integer multiple spiking, the integer multiple spik-ing from the experiment, the stochastic Chay model, and the deterministic Wang model and their chang-ing regularity with respect to extra-cellular concentrations of Ca2+([Ca2+]o) or the reversal potential of Ca2+ in model were studied.

为进一步区分神经自发整数倍峰放电节律的随机性和确定性模式的动力学性质,详细研究了实验神经起步点、随机理论模型和确定性理论模型产生的3种整数倍峰放电节律及其变化规律。

At first, according to the mechanical vibrationtheory and detailed analysis on coiling the different stage mathematical models of coiling are set-up. The correlation equations of the models are also given. Then, the paper presents an analysis ofthe moment of inertia of coiler in hot strip mill in detail, the equation of the inertia moment and theanalysis.

本课题首先从振动理论出发,对卷取的整个过程做了详尽的动力学分析,建立了不同卷取阶段的数学模型;接着分析了卷筒的惯性力矩,建立了卷筒张力控制的数学模型,推导了惯性力矩的理论表达式。

The experimental results also showed that different results produced for different location and reflectivity of the compensative mirror.

根据腔镜结构,从波的传播理论出发,给出含补偿腔的理论模型,用MATLAB编程对模型进行的数值模拟结果与实验结果吻合得很好。

Firstly, the paper utilizes the method of criterion research to analyze the construct of brand's gender traits by integrating the Gender Schema Theory with the Self-concept Congruity Model, and create a model of brand gender traits.

首先,本文把性别图式理论和自我概念一致性模型结合起来,对品牌的性别气质结构进行了理论分析,构建出了品牌的性别气质模型。

Chapter 1 briefs the relation between invariance and computer vision and summarizes the research and application of invariance in computer vision. Chapter 2 first derives the transformations of three camera models, then makes the correpondences between the models and three typical geometrical transformation groups by analysing the transformations respectively. The correspondences supply the theoretical basis for applying geometrical invariants to resolve the problems of computer vision. In Chapter 3, we describe the geometrical invariant theory and prove some geometrical invariants of coplanar points, lines or conics by algebraic method. In order to use the invariants of conic pairs to describe general 2D shapes, we discuss the perspectively invariant representation of planar curves using conies in detail. A system consisted of two TMS320C25 and based on moment invariants is introduced in Chapter 5. The system can recognize more than 30 different shapes of object model or more than 10 plane models with similar shape in real time.

第一章简述了不变性与计算机视觉的关系,以及计算机视觉中的不变性研究和应用概况;第二章推导了计算机视觉中常用三种投影模型的变换关系,通过对这三种变换关系的分析,分别建立了这三种投影模型和几何学中的三种变换群之间的一一对应关系,为几何不变性在计算机视觉中的应用提供了理论基础;在第三章中,我们介绍了几何不变性的理论,并且用代数方法证明了共面点、直线、二次曲线的几何不变量和射影不变量;为了把二次曲线的不变量用于一般二维形状描述,在第四章中我们详细地讨论了用二次曲线实现一般平面曲线的透视不变性表示的方法;第五章介绍了用两片TMS320C25构成的、基于不变矩形特征的运动目标实时识别系统。

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推荐网络例句

I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。