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Based on the Saint-venant equations describing the channel flow movement, the nonlinear algebraic equations derived by the use of Preissmann weighted implicit four-point scheme are solved with the Netwon-Raphson method. A combined Gauss main-element elimination method with compress-storage technique is proposed. The relaxation iterative method for solving branch river networks is extended, which can turn the problem of any complex river networks into the problem of a series of single rivers. The coupling of hydraulic model with water quality model is built up. The combined model was applied to a large complicated river networks with numerical hydraulic structure which influenced by strong tide, storm and heave rain. Visualization of computational results is realized by means of MapInfo, which displays the computational results in fast, convenient and accurate way.

水力模型以描述河道洪水波运动的Saint-Venant方程组为基础，用Newton-Raphson方法直接求解按Preissmann加权四点格式进行离散所得的非线性代数方程组，提出了压缩存贮形式的Gauss列主元消去法并对数值解的收敛性进行了讨论；将支流流量的松弛迭代方法从树状河系推广到了环状河网，使任意复杂河网水力计算的问题都可化为一系列的单一河道的水力计算问题；建立了水力模型与水质模型的联接，初步应用于既有洪水、暴雨、强潮等综合影响，又存在多种水工建筑物及水力调度问题的大型复杂河网中的非恒定流水力、水质计算问题；利用MapInfo对计算结果的可视化进行了研究，有利于决策者快速、方便、准确地作出决策。

The Gross Control Model of Semantic Vocabulary as Dictionary with Examples is a new theory or method or tool. There are tow kinds of GCM in man-com-net including the Gross Text Control Model and the Gross Syllable Control Model on Language Understanding. GTCM means 0~16 levels with all kinds of texts in GLPS. GSCM means 1~n levels with all kinds of syllables in SVDE. The meanings of SVDE controlled by geminate numbered list("1...n" to "1...n").

义项语汇典例的总量控制模型，把中文信息处理的"字处理平台、词处理平台和句处理平台这3个层次"有机地联系在一起，从而，为"中文自动分词和词性自动标注系统"与"其他深层次的语言处理技术，如名词短语捆绑、句法分析、语义分析等"奠定了坚实的基础。

Leading entropy into establishing model of assessment models of system risk, new type of fuzzy pattern recognized model is put forward based on entropy and least generalized distance square sum of weight and fuzzy synthesize judgement model of assessment matrix defined by subordinated function of sine or cosine function.

2将模糊熵引入系统危险性评价模型的建模之中，提出了基于模糊熵及权广义距离之和最小的新型的模糊模式识别模型。

During the modeling of approximate sequence, a generalized autoregressive conditional heteroscedasticity model, to which the exogenous variables are added, is built to form GARCHX model to avoid the defect of traditional time sequence model that the external impacting factors are neglected.

建立考虑异方差的广义自回归条件异方差模型(generalized autoregressive conditional heteroscedasticity，GARCH)对概貌序列建模，并在GARCH模型中加入外生变量形成GARCHX模型，以弥补传统时间序列模型忽略外界影响的缺陷。

This dissertation is deals with study some of the specific linearity tests and investigate the possibility to find a specific linearity test that can use to accurately determinant the alternative nonlinear model and avoiding chose alternative nonlinear model other than the true DGP series generating from, in the case of rejecting the null model.

本文主要研究非线性时间序列模型的一些特定线性性检验问题，通过对研究文献的回顾与综述，研究者试图回答：为什么研究者倾向于使用非线性时序模型？为什么要进行非线性时序模型的线性性检验，并以此作为本研究的逻辑引导。

In Chapter 4, the pricing of Asian geometric average option under stochastic interest rates is studied, assuming CIR model for the interest rates. Asian option is strongly dependent with path, usually have a long duration, the movement of interest rates becomes more important in pricing such long-dated options. The CIR interest rate model not only considered the interest rate behavior has mean-reverting but also take into account that the fluctuation rate is direct proportion with the square root of its interest rate. Finally, the method of finite difference for the Asian geometric average option under CIR interest rate model is given.

第四章在利率满足CIR利率模型的假设下，研究了几何亚式期权的定价公式，亚式期权是强路经依赖性期权，通常有效期较长，在进行较长时期的投资时，利率的变化是非常重要的，CIR利率模型不仅考虑了利率行为具有均数回归的现象，而且还考虑其波动性的大小与利率大小的平方根成正比，最后给出了CIR利率模型下的几何亚式期权定价的有限差分法。

In this paper, 3ds model file format is analyzed and adopted as a primary representation of the geometric model in virtual environment. The feasibility and generality are investigated from the point of view of principle, practical application and experiment result. It is proved that, for application not very complex, it is a practical way to adopting 3ds model and relative 3-d modeling software to establ...

该文采用了 3DS模型文件作为虚拟环境中几何模型的主要存储格式，并且从理论上、实际应用方法以及试验仿真结果几个方面分析了该方法的可行性、通用性，说明了在要求不高的条件下，采用 3DS模型和相关的三维建模软件进行虚拟现实研究工作是一条现实的途径

Therefore the following research works have been done in the dissertation: To put forward a unified surface-solid geometric model and its topological representation which can represent surface model and solid model in an integrated data environment.

该模型可以将曲面模型与实体模型表示在一个统一的数据环境中，从而达到了拓宽几何造型系统的形体定义范围和造型覆盖域的目的。

Concept data model of MRGISDM analyses entity's character and relationship. Logic data model designs logical and geometric representation of entity and relathionship; physical data model designs the schema of classification and coding ,orgnization of layers,and physical storage structure.

在MRGISDM概念模型中确定了市政道路中需要表达的要素实体，提取出每个要素实体的属性，并描述出实体之间的关系；MRGISDM逻辑模型则把市政道路实体以及实体之间的关系表达成地理信息系统所能识别的方式，并用UML语言等工具描述成UML逻辑模型图；MRGISDM物理模型从市政道路要素的分类与编码、图层的组织以及物理表结构等几个方面来设计市政道路要素的组织和存储结构。

The paper presents how to use the technique of OLE and ARX of AutoCAD to build the geometrical model, the finite element model of the given structure visually and use the template and wizard to build the optimization model of it. During the iterative process of the optimization, the method of tracing visualization and interactive control is also provided. Some examples are given to show the appliance of visualization aided structural optimization. Finally, the work of systematic integration is carried out.

同时论述了在优化建模中运用OLE ARX技术实现可视化地建立优化对象的几何模型，结构有限元模型，以及使用模板和专家向导来辅助建立优化模型；在优化迭代过程中实现了跟踪可视和交互式监控，以具体的例子说明了在可视化技术辅助下的结构优化在工程中的应用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。