参数变量

In ChapterⅠ, we first define the connotation of bank efficiency, then emphasize the two major measuring methods—Data Envelopment Approach of nonparametric estimation and Stochastic Frontier Analysis of parametric estimation,which are used extensively in this field , and the ways of defining the put-in and put- out indexes for the efficiency measurement models.

正文的第一部分首先对银行效率的内涵进行了界定，然后重点介绍了国内外学术界应用较为广泛的效率测度理论与方法(参数估计的DEA方法与非参数估计的SFA方法)和效率测度模型中投入与产出变量的界定方法。

This study refers to the conditions of practical powder metallurgy manufacture process, and proceeds to experiments and gear precision measurements as well as investigation on the effects of two parameters, powders and pitch circle radius, on gear precision. The relationship between gear parameters and gear surface deviations was derived from the mathematical model for the involute helical gears and the analysis of gear surface deviations.

本论文将采用实际上粉末冶金螺旋齿轮的制程条件，进行试作实验与齿轮精度的量测，以探讨粉末及螺旋齿轮之节圆半径这两个制程参数对於齿轮精度的影响；同时应用齿轮创成原理所推导之螺旋齿轮数学模式，配合齿面变异分析，求得齿轮设计参数改变量与齿面变异量之关系。

For example, quadratic curve and quadric surface are used as primitive element in most modeling/CAD system. The implicit formulae for computing the intrinsic geometric invariant??

随着对参数曲线曲面研究的深入，早在80年代初苏步青教授等就将几何不变量的研究引入并应用到参数曲线、曲面的研究中，取得了重要的成果［1？

On the basis of the Principal Component Analysis method this novel has analyses the parameter which influenced the weapon expenses ,got the principal component variable of the weapon expenses parameter model and preferably reflected the actual conditions of the weapon.

文中基于主成分分析方法，对影响武器费用的参数进行了分析，得到了武器费用参数模型的主成分变量，较好地反映了武器的实际情况，最后给出了模型的一个应用实例。

The detailed analysis of the effects of the design parameters of vibration-impact rammer on the work characteristics of the machine was completed through the simulation test.

详细分析了振动冲击夯各设计参数对机器工作性能的影响，并以主要设计参数为设计变量对振动冲击夯进行了优化设计。

Virtual prototyping technology was used to carry out the modal analysis and dynamic response analysis for vibration-impact rammer. The detailed analysis of the effects of the design parameters of vibration-impact rammer on the work characteristics of the machine was completed through the simulation test.

用虚拟样机技术对振动冲击夯进行了模态分析和动态响应特性分析，详细分析了振动冲击夯各设计参数对机器工作性能的影响，并以主要设计参数为设计变量对振动冲击夯进行了优化设计。

Model structure is determined according to the principle of minimizing residual sum of squares, model parameters are estimated by optimum instrumental variable method and prediction error method and validation of the model is performed by examining the whiteness of model residuals.

采用最小二乘法估计制动器ARX模型的参数，以损失函数最小为优化准则，判断了制动器模型的阶次。运用最优辅助变量法和预报误差法，对制动器ARMAX模型的参数进行了估计。

The traditional separation of variables method is used to get the solution of SEW electric-fields when the parameter of the media changes abruptly.On the basis of these,WKB method is used to get the solution of SEW electric-fields when the parameter of the media changes gradually.

运用传统的分离变量法得到了媒质参数突变情况下球面电磁波场强的分布，在此基础上，模仿WKB方法推导出了媒质参数渐变情况下球面电磁波的场强分布。

Therefore, the issue, how to build the relationship between the robust performance and the time-domain performace, develop a robust tuning scheme, and further enhance the decoupling capability are stringently required to be solved.

本文由多变量时滞系统中的单参数控制器入手，研究了鲁棒整定问题，给出了依据系统鲁棒稳定条件和时域性能指标，定量计算控制器参数的解析方法。

The highlight of the DCL algorithm is that we have studies hidden variables structure estimation with own parameters, which form more general case of curve data submanifold. As the application of information geometry learning algorithm for supervised neural networks, we have given detailed algorithm implementment of DCL algorithm for mixture of experts, and stochastic multilayer percetron.

其中我们所作重要的工作是把结果推广到隐变量本身带参数结构的弯曲数据子流形的情形，采用了由场变换所形成的数据子流形估计中，辅助量本身是一个带参数的量，根据对偶梯度流公式，给出了学习算法实现的具体形式。

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。