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Because the data separate, the adulatory property are big, easily influenced by a variety of factors outside, this is also determined by the characteristics of Small and medium technology enterprises. The theory of Gray Correlative Analysis makes up for the lack of Mathematical Statistics inGray

因此本文对数据进行了预处理，以消除噪声和去除干扰因素，并在此基础上引入了灰色关联度理论，对安徽省中小型科技企业的发展因素进行灰关联分析，最后针对其发展提出一些对策和建议。

Go around the high duty mathematical education target we should advance with time and accurate allocation around.

围绕高职数学教学目标要与时俱进，准确定位。

Through an analysis of aquifer deformation machanism caused by groundwater pumping ,the seepage flow equation with considering adynamic unit is deduced in this paper,and the mathematical model for the effect of aquifer deformation caused by groundwater pumping upon seepage field is presented.

通过分析抽水引起含水层变形机理，推导出了考虑单元体位移的渗流方程，提出了抽水引起含水层变形对渗流场影响的数学模型。

Treating with coils as aeolotropy, this paper brings forward a set of mathematical mode for computing internal stress distribution of coil in the process of coil coiling, in which some factors are taken into account, such as the transverse distribution of shape, crown and curl tension of the strip, the friction between the strip and the reel, the friction between strips, and etc. Because the reel shrinkage and the inner circle of the strip losing radial restrain and circumferential restrain can induce interlayer slipping and the change of the whole coil compactedness , the assumption concerned ——"virtual reel" in the process of coil uncoiling is put forward, which takes the form of slow action to express the uncoiling process and, therefore clearly simulates the variation course of internal stress distribution of coil in the process of coil uncoiling.

考虑到带材板凸度、卷取张力的横向分布以及带材与卷筒之间、带材与带材之间的摩擦力等因素的影响，并将钢卷按各向异性体处理，提出一套计算卷取过程中钢卷内部应力分布的数学模型；同时考虑到卸卷过程中由于卷筒的收缩，钢卷内圈失去径向和周向约束而引起层间滑移及整个钢卷紧密程度发生变化，提出钢卷卸卷过程中有关"虚拟卷筒"假设，将卸卷过程以"慢动作"的形式表示出来，清楚地模拟出卸卷过程中钢卷内部应力分布的变化历程。

In this paper,the relation of primary aeration coefficient and NOx emission rates are obtained through mathematical analysis.

本文通过实验数据的回归分析给出了一次空气与NOx函数关系的数学表达式，并对NOx的排出特性进行了理论解释。

To stability analysis of the tethered balloon, A three dimensional nonlinear mathematical model of tethered aerostat was assembled.

摘 要：为研究系留气球稳定性，建立了系留气球的三维非线性动力学模型。

Thismethod adopted affine transformation model and a Lie derivative-based analytical algorithm.We introduced the process and characters in extracting information of biological visionsystem, studied the feasibility of the generalized Gabor function used as receptive fieldfunction in extracting information and analyzed affine transformation group and Liederivatives. Finally, we deduced the mathematical denotation for Lie derivatives, i.e. theinfinitesimal generator of the geometric distortion in affine transformation.

对生物视觉信息提取的过程及特点进行了介绍，其中主要研究了广义Gabor函数作为感受野函数提取初级视觉信息的可行性；对仿射变换作为外界图像信息在视觉成像系统上的投影模型的原理进行了初步讨论；对Lie变换群微分算子用于提取仿射变换不变量的分析方法作了剖析，并推导了该方法中关键部分——仿射变换Lie微分算子的具体表达式，也就是几何变形无限小微分算子的计算表达式，使下一步编程实现该方法成为可能。

A mathematical model of dynamic neural networks is built, which is shown to be equivalent to an affine nonlinear control system.

引 言 神经网络系统是在现代神经生物学和神经心理学的研究基础上，模仿人的大脑神经元的结构特征和功能特征而建立起来的一种非线性系统。

And it has given the effects of the all factors on the runoff by 1D river networks mathematical model. Due to the natural and artificial influences, the water-sediment transport has greatly changed. It is characterized by marked decrease in runoff and sediment diverted from these outfalls and increase in water-sediment transport of main stream. The key factors causing these changes are aggradation of the three outfalls channels and Jingjiang river cutoff work.

结果表明，受自然因素和人为因素的影响，荆江－洞庭湖江湖水沙输移有了较大调整变化，主要表现为三口分流分沙大幅度减小，干流水沙输移增加；江湖关系变化的主要因素是三口分流道的淤积萎缩和荆江裁弯。

Based on gas dynamics,a mathematical model for the air brake system of train is established.

根据气体动力学原理建立了列车空气制动系统的数学模型，预测了制动系统紧急制动作用；陆界长度与机车大闸排气口面积、列车管定压及列车长度的关系。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。