法的理论

The interpolate algorithms of three-order NURBS curve and double three-orders NURBS surface are presented. The expressions of partial derivative and normal curvature of NURBS surface are derived by the theory of differential geometry. The geometric characteristics of different curvature area of the free-form surfaces are analyzed in detail. All these work lays a theoretical foundation for constructing the cutter location calculating model of free-form surfaces NC machining. 2 On the basis of analyzing the methods of cutter path generation, the standard of evaluating the various methods of cutter path generation is presented. The method of generating cutter path with constant scallop height is presented for the first time.

本文以提高复杂曲面多坐标数控加工精度和加工效率为目的，在对国内外研究现状进行深入分析的基础上，对数控编程中各环节的关键技术问题进行了深入研究，主要内容包括以下几方面： 1 分析了复杂曲面各种造型方法的优缺点，给出了根据各种边界条件所确定自由曲面的NURBS表示方法以及三次NURBS曲线曲面反算算法；用微分几何理论推导了NURBS曲面的偏导矢及法曲率计算表达式；对曲面不同曲率特性区域的几何特征进行了深入分析，为建立复杂曲面的数控加工刀位计算模型奠定了理论基础。

It can avoid overdoing the generalization.(3) Imputation of unknown values. To the incomplete information systems,the dissertation suggests a new method to impute the null values. The method is based on the extending model of rough sets and fully considers the consistence of data and dependency of attributes.

为了提高GDSS决策能力，本文提出了将粗糙集理论与层次分析法相结合的思想，利用粗糙集理论所确定的属性间的依赖关系，分析应用系统运行所积累的大量数据中各决策因素、决策者对决策目标的影响，构造具有完全一致性的个体判断矩阵和综合判断矩阵，建立自学习系统，克服决策者主观因素对决策结果的影响。

The theories research:Reviewed the medical history of stroke\' s Pathogenesis and Modernrecognition on the pathomechanism of fushi syndrome of acute stroke; Exploredthe neuroprotective mechanism of tongfu treatment on acute stroke; Reviewedthe source of xuanfu theory and xuanfu pathogenesis of stroke. Proposed thattongfu could not only get through the gastrointestinal sthenia syndrome,butalso xuanfu; Explained the effect of AQP-4 in ischemic stroke pathogenesisand try to explore the intrinsic link between xuanfu and channel protein2. Clinical research: A retrospective case-control study was adopted, according to the diagnosis,inclusion and exclusion criteria, included in a total of 60 cases of acuteischemic stroke who hospitalized in one or three department of neurology inGuangdong Provincial Hospital of TCM from April 2005 to March 2007, used TFXSJN and unused TFXSJN was 30 casesrespective.

1理论研究：回顾了历代医家对中风病因病机的认识及近代医家对中风病急性期腑实证形成的病理机制的认识，探讨了通腑法治疗急性中风的神经保护机制；(来源：ABC论文18网www.abclunwen.com)回顾了玄府学说的历史渊源及中风病的玄府病机；提出通腑法所通的不仅仅是胃肠之腑，也包括无物不有的玄微之府；阐述了AQP-4在缺血性中风病理机制中的作用，并试图探讨玄府与通道蛋白之间的内在联系。2临床研究：采用回顾性病例对照研究，按照诊断、纳入及排除标准，纳入了2005年4月—2007年3月在广东省中医院神经一科及神经三科住院的急性缺血性中风患者共60例，其中使用TFXSJN及未使用TFXSJN者各30例。

In the numerical study, the governing equations of flow and heat transfer in 3 —D body—fitted curvilinear coordinate system being automaticly generated with TTM method were deduced by means of vector and tensor analysis. These equations were dliscreted with nonstaggered grids providing relative elimilating method for the pressure oscillation was domonstrated.

在数值分析中，借助于矢量理论和张量分析，导出了具有普遍意义的三维任意曲线坐标系下的流动传热控制方程，并利于TTM方法生成了计算域的贴体曲线坐标网格；在数值离散过程中，尝试了用非交错网格离散的方法并解决了压力场振荡的抑制问题；运用附面层理论，阐述了壁面函数法在三维任意曲线坐标系上的应用。

The distribution of gear's contact stress, root stress, and contact engagement line in the engagement situation of gear pairs, were obtained on the base of explicit integration method. 3. Adopting the method of system matrix, the torsional vibration differential equation of general shafting was gained. The simple harmonic forms of excitation torque under the normal combustion or piston flameout of in-line engine and v-type engine were analysed. The decoupled algorithm of free vibration and forced vibration and the solution to the vibration damper's energy of resistance and the off-resonance calculation were studied. The sensitivity formulations of the natural frequency and vibration mode to physical parameters of system were derived by solving the eigenvalue problem. These sensitivity formulations provided the theoretical base for the dynamic modification of structure.

运用系统矩阵法建立了轴系的扭振微分方程，并对直列和V型发动机在正常发火和气缸熄火工况下的激振力矩进行了详细的简谐分析；基于精确方法推导了自由振动和强迫振动的解耦算法，给出了能量法计算中的减振器阻尼功求解和非共振计算方法；并研究了曲轴系扭振非线性分析中的变惯量问题，得到了单缸转动惯量的精确求解公式以及变惯量和固有频率的关系式；最后，从特征方程和振型正交性出发，推导了固有频率和振型对轴系转动惯量和刚度等物理参数的灵敏度，为扭振系统的结构动力学修改提供了理论基础。

The main purpose of this paper is to study the risks that the electronic bank faces, as well as the risks to its horizontal and vertical analysis.

本文对电子银行面临的风险进行分析，并对其风险进行横向和纵向的研究，主要进行了以下的研究：首先，引入时间序列，运用小波对电子银行数据进行分解和重构，并结合证据理论，提出了小波与证据理论相结合的电子银行风险预测方法，使电子银行预测变的更加科学、合理；其次，在分析电子银行操作风险事件的基础上，建立了一个电子银行风险的模型，运用层次分析法对电子银行内的各个因素对其风险的影响系数进行评价。

This paper is discussed with kitchen balance as an example, through the method of theoretical research and investigation analysis is designed at early stage, with Semantic differential method, the market analysis and location that carries out product are evaluated with semantic discrepancy analysis law for product form, the investigation customer's good important lead role for entire design process makes design go forward along correct direction, to reduce the risk of design development, pass offset cost the research of psychology, may know the needs of customer fairly objectively, reach the conclusion of more near market demand, so play the part of the role of a kind of directiveness.

本论文以厨房秤为例，通过理论研究和调查分析的方法，探讨在设计前期运用消费问卷法进行产品的市场分析与定位，运用语义差异分析法对产品形态进行评估，考察消费者偏好对整个设计流程的重要导向作用，使设计能沿着正确的方向前进，降低设计开发的风险。通过对消费者心理的研究，可以比较客观地了解消费者的需要，得出比较接近市场需求的结论，从而起到一种指导性的作用。

The horizontal and vertical first derivatives of magnetic anomalies of an infinite cylinder are calculated by the cosine transform method, in which the maximum errors are -0.28 nT/m and 0.47nT/m, respectively and the percent errors are generally within -3.57%~3.27% and -1.94%~1.88%, respectively except several data of the boundary and part are bigger because of remains of Gibbus effect. The calculating curve and theoretical curve are approximately coincident, and there is no influence by effective magnetic dip angle in computing. But the errors with the Fourier transform method are -10.62nT/m and 14.42nT/m, there is large departure between the calculating curve and theoretical curve and evident influence by effective magnetic dip angle in computing.

利用余弦变换法计算的无限长水平圆柱体磁异常水平和垂向一阶导数的最大误差分别为-0.28nT/m、0.47nT/m；水平一阶导数的误差一般在-3.57%~3.27%之间，垂向一阶导数的误差一般在-1.94%~1.88%之间；计算的磁异常一阶导数值与理论值大致重合，而且不受有效磁化倾角的影响而Fourier变换法计算的水平和垂向一阶导数最大误差分别为-10.62nT/m、14.42nT/m，计算曲线与理论曲线偏离大，受磁化倾角的影响也较大。

With the guide of non-linear program theory, by using interpolative steps and inexact line search, an improved conjugate gradient method was found, by which the training rate of BP networks increases by tens or hundreds of times. Moreover, the improved method is effective to solve non-linear equations for which Newton's method does not converge owing to the problems of the quadratic derivative and inverse matrix.

通过大量的数值模拟试验发现，在非线性规划理论的指导下采用间插步骤和不精确的一维搜索技术改进的共轭梯度法，是基于梯度和共轭方向的连续搜索算法中最有效的算法，这种算法使BP网络的训练速度提高几十到几百倍，使BP网络的实际应用效果大为改善；而且这种算法对于用牛顿法由于求二阶导数和求逆矩阵等问题难于收敛的非线性方程组的求解也是很有效的。

Based on traditional wood fiber processing way at home and abroad, this paper draws up mathematical description theory of wood fiber, finishes the mathematical description theory of single wood fiber, sum up the reason of low density of wood fiber at microcosmos state, completed the laboratory study on Micron Flake Fiber High Strength Board, set up the forming methodology of this kind of wood-based panel.

本文在总结国内外传统法木纤维加工的基础上提出了木纤维数学描述理论，进行了单个木纤维细胞的数学描述，总结了现在木纤维强度低的微观原因，完成了微米长薄片木纤维高强度人造板的实验室研究，创立了该板种的形成方法学，所提出的MFB形成理论体系和加工方式，是利用木材微纳米技术在人造板加工业中开创出的一片新研究领域，提出了微米纤维细胞劈裂的条件。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。