比较函数

The thesis first recommends the famous fuzzy Gaussian approximation system which is based on the Gaussian membership function, the fuzzy logic of product reasoning and the fuzzy law of weight approach. This thesis is discusses the general fuzzy Gaussian membership function that can approximate the form of triangular, trapezoid and Gaussian function , and its basic form is .The general fuzzy Gaussian membership function is to be generally used in the field of approximation .

模糊逼近是近年来发展比较迅速的一个新兴方向，论文首先给出了模糊理论中著名的基于高斯隶属函数、乘积推理模糊逻辑和重心解模糊法的模糊高斯型万能逼近定理，在此基础上本文进一步给出了可以用来逼近三角形、梯形和高斯形的广义高斯隶属度函数形式，它的基本形式是。

Using VC to call MATLAB functions in the mapping function of the examples of relatively simple examples.

利用VC＋＋调用MATLAB中的函数进行函数绘图的实例，比较简单的例子。

The analysis results of these shift orthogonal functions in GSM channel, which is compared with that of conventional shaping filters such as square root raised cosine functions, show that it has better performance.

最后通过与常用的平方根升余弦函数波形在GSM信道中的数值解比较，说明了基于小波包函数的移位正交传输波形优于传统的波形。

To obtain more practically optimal solutions for production planning in chemical enterprises, piecewise linear function and polynomial function were used to model nonlinear unit consumptions.The optimal solutions obtained by the two approaches were compared in case studies.

为了得到更切合实际的化工企业生产计划优化结果，采用分段线性函数和多项式函数对非线性单耗问题建模并进行比较。

This article's conclusion is that flexible method can be a good simulation of real data relevant situation, especially tail dependence. When we compare with the normal copula function method and the t-copula function method in predecessor literature, our model show more predominance than others.

本文的结论是本文的方法能较好的模拟出真实数据相关性的情况，特别是尾部的特征，在和前人文献中常使用的正态copula函数方法和t-copula函数方法进行比较时发现，我们的模型在拟合度方面更具优势。

In the thesis the theory of time series analysis, several models about time series analysis and the dynamic feature of time series analysis are expatiated in detail; how to use autocorrelation function and partial correlation function to judge the model is analyzed; a kind of better rule to determined rank is determined by comparing several kinds of determined rank; thereby the reverse function can be used to forecast.

本文详细阐明了时间序列的基本思想、几种常见的时间序列模型以及时间序列的动态特征；分析如何利用自相关函数和偏相关函数来对模型进行判定；通过对时间序列的几种定阶准则的比较，确定出一种较好的定阶准则来建立模型，从而利用逆函数法进行预报。

Section two elaborates the structure of a simple model on static yield curve of zero-coupon bond. According to the difference of constitution principle, the dissertation divides the numerous static models into direct ones and indirect ones. On the basis of setting forth the different constitution thoughts of two methods, it compares the merits, shortcomings, and the application scopes of the two methods. Spline model is the most common indirect method, and is the study emphasis of this section, especially its three key approaches that are defining the rank of function, the subinterval number to be divided, and knot of each subinterval, which are fully elaborated in the dissertation.

第二节阐述了现行静态零息票债券收益率曲线简单模型的构造，根据构造原理的不同，论文把众多静态模型划分为直接法和间接法两大类，在简述两种方法各自不同的构造思想的基础上，对两种方法的优缺点及适应范围进行了比较；分段样条函数模型作为最常用的间接法，是本节研究的重点，尤其是对它的三个关键环节：确定函数的阶数、确定所分的段数、确定各段的分解点，论文更是给予了充分的论述。

The efficiency correction function of source absorption of an HPGe γ detector is determined by experiment in energy range from 59.5keV to 1408keV and density range from 0.3g/cm^3 to 2.0g/cm^3. Fit Polynomial and fit Sigmoidal are compared.

采用实验法在59.5keV~1408keV的能区和0.3g/立方公分~2.0g/立方公分的密度范围内，测定一台HPGeγ谱仪效率的源自吸收修正函数，比较了多项式拟合和S拟合两种形式的源自吸收效率修正函数。

Under rational approximations, the symmetry and resolution properties are analyzed in detail and compared to those of the traditional processing.

论文第六章推导给出了双差拍处理下的模糊函数，详细分析了其对称特性和分辨率特点，并与传统差拍处理下的模糊函数特性进行了比较。

After that, analytically using the Taylor formula, it reduces the expansion to one-variable function and makes a specific discussion.

在判别法失效的情况下，从几何方面引入了判别二元函数极值的一些必要条件，然后在分析方面利用Taylor公式，将展式化为一元函数，进行了比较细致的讨论。

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。