参数

To realize the parametrical design of pipe die for extrusion, a parametrical design language with friendly graphic user interface was combined with the APDL language (Ansys Parametric Design Language) provided by ANSYS software, and then the flow fields was analyzed.

本课题为机头设计提供了一种方法，即利用具有良好图形用户界面的参数化设计语言，结合ANSYS有限元软件自带的APDL（Ansys Parametric Design Language）语言，实现了芯棒式管材挤出机头流道的参数化设计，并利用ANSYS有限元分析软件对其流场进行模拟计算和分析，以获得较为适宜的机头几何参数。

It was found that electrical field strength and potential around the the sample changed less in the fully insulated chamber than in conducting material phytotron, so it is closer the real condition. Based on the design, the first fully insulated large artificial climate chamber in China, in which temperature , humidity, and atmospheric pressure can be regulated, has been built in our laboratory. The paper developed an insulation parameters automatic test system of high voltage capacitive equipment based on LabVIEW. In the chamber, On-line tanδmeasurements of the capacitive transformer bushings were completed. The effects of environmental factors on tanδwere analyzed, and the curves between the tanδand the environment parameters were acquired. Then, a grey relational model to analyze the effects of main environmental factors on tanδwas built, and the grey relational grade between them was gained in this paper.

完成的主要工作和取得的主要研究成果如下：提出了全绝缘型人工气候室设计方案，计算分析了气候室内悬挂绝缘子和套管时的空间电场分布情况，并和金属材质气候室相比较，论证了该方案的优越性，据此方案研制的全绝缘人工气候室可调节温度、湿度和压力等参数，满足了人工气候试验的要求；开发了基于虚拟仪器技术的高压电容型设备绝缘特性自动测试系统，完成了人工气候室内变压器套管tanδ的在线测量试验，以此为基础分析了环境因素对电容型设备tanδ的影响情况，获得了tanδ与环境参数的关系曲线，建立了环境因素对tanδ影响的灰关联分析模型，得到了主要环境参数与电容型设备tanδ的灰关联度。

Injection parameters such as injection pressure and nozzle diameters were investigated by using the quantitative calibration results.

在改变喷射控制参数和环境参数的喷雾特性研究中，应用定量标定的试验结果深入开展了喷油压力、喷孔孔径、环境密度和环境温度对喷雾各个特性参数影响的研究。

Injection parameters such as injection pressure and nozzle diameters were investigated by using the quantitative calibration results.

在改变喷射控制参数和环境参数的喷雾特性研究中，应用定量标定的实验结果深入开展了喷油压力、喷孔孔径、环境密度和环境温度对喷雾各个特性参数影响的实验研究。

The initial values of adjustment parameters are obtained by using iteration algorithm , the cutter profile is simulated with computer, and the profile error is corrected by iterative process, then the optimum values of adjustment parameters can be achieved.

研究了加工螺旋槽用盘形成形铣刀调整参数的计算机算法，利用迭代算法得出调整参数的初值，利用计算机模拟刀具廓形，对廓形误差进行迭代修正，从而可获得调整参数的最优值。

Moreover, each of their exact correspondingentropy is obtained via the method of transition matrices. We also study the bifurcation phenomenon of mosaic patterns with bifurcation parameters z and β. Here z is a source term and β is the interaction weight between the neighboring cells.

许多复杂的参数区域是可以被完整地描绘出来，每一个参数区域的熵是可以藉由转换矩阵的方法算出来﹔我们也利用参数和来讨论一些马赛克花样的分歧现象，在这里是一个偏压项、是和邻近细胞的互动比重。

In the parameterized design of the hot wind furnace, the number of rows and columns of pipe bundle were always varied with design parameters, it was difficult to generate 3D parametric model of hot wind furnace.

在间接加热式热风炉的参数化设计中，蛇型管束的行数和列数随着设计参数的变化而变化，使得间接加热式热风炉三维参数化建模比较困难。

Many studies have been accomplished byvarious kinds of spectroscopic techniques with some important molecularparameters determined. There are, however, no wide-accepted molecular parameterstaken as a reference and no precise 〓 and 〓 obtained simultaneously so far.

人们运用各种光谱技术对NO在各波段的光谱进行了大量的研究，获得了一些重要的分子结构参数，但却没有一组公认准确统一的分子参数可供使用，也不能同时获得分子参数〓和〓。

In the training of HMM, referring to the auxiliary function in reference〓, and the method in reference〓 to get the estimations of the parameters of Markov chain, we define the likelihood function and auxiliary function for the maximum likelihood estimation of CDHMM, and then induce systematically the forward-backward algorithm and the re-estimation formulas for parameters of CDHMM.

在HMM的建模方面，本文借鉴文献〓中求多变量观测值马尔可夫链参数时辅助函数的选取方法，定义了CDHMM的似然函数和辅助函数；借鉴文献〓中求解马尔可夫链参数时的求偏导方法，并针对本文辅助函数加以简化和改进，系统地推导了HMM的前向—后向算法，以及CDHMM各参数的极大似然估计公式。

Then, smooth actions of three controllers are assured. Using the definition of 'fuzzy transfer function', the approximate corresponding relationship between well-tuned parameter of PID liner controller and scaling gains of fuzzy controller is established.

在模糊控制器的参数整定上，借助于模糊传递函数的定义，建立了模糊控制器比例因子与PID线性控制器整定参数的近似对应关系，于是模糊控制器的最佳参数便可通过较少的试凑被整定出来，简化了模糊控制器的设计。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐