参数

Based on the concept of optimal control solution to dynamic system parameters identification and the optimal control theory of deterministic system, dynamics system parameters identification problem is brought into correspondence with optimal control problem.

本文基于动力学系统参数辨识问题最优控制解的概念和确定性动力学系统的最优控制理论，建立了参数辨识研究与最优控制理论的对应关系。

Firstly, modal responses were estimated by the application of robust second-order blind identification technique on the measured vibration signals. And then, modal shapes were extracted from the de-mixing matrix above. Finally, frequency and damping ratios could be obtained from the modal responses using each single degree of freedom mode.

运用该法提取系统／结构模态参数的步骤为：首先利用稳健SOBI的盲源分离方法采集的信号进行分离，然后将分离矩阵作为结构／系统的模态振型矩阵，最后再对各个分离后的单自由度信号提取频率、阻尼比参数。

At the same time,the rated voltage,the parameters of chargedischarge curve and parameter passing can be set by the handheld programmer,which expands the coulometer′s flexibility and adaptability.

同时，还具有通过手持编程器设定额定电压、充放电曲线参数及参数传递等功能，增强了电量计的适应性与使用灵活性。

Based on this, a method to estimate kernel parameters using the covariance function of the samples is presented.

证明了对于径向基核函数而言，采用变异函数估计核参数与采用协方差函数估计核参数的一致性。

In fact, OO classes can only express single parameter type classes where the type argument appears exactly once in strictly covariant position.

事实上，OO类只能表达一个参数的type class，而这个类型参数还必须出现在严格的协变位置一次。

The article discusses causes and eliminated measures of aluminium alloy die forging s crassitude crystal from four sides of component,technical parameter,temper of die and heat treatment.

从锻件的材质、锻造工艺参数、锻模温度、热处理工艺参数四个方面，阐述了铝合金模锻件粗晶缺陷的产生原因及消除措施。

The article discusses causes and eliminated measures of aluminium alloy die forgings crassitude crystal from four sides of component technical parameter temper of die and heat treatment .

从锻件的材质，锻造工艺参数，锻模温度，热处理工艺参数四个方面，阐述了铝合金模锻件粗晶缺陷的产生原因及消除措施。

All process for formation and development of water and gas coning/cresting in horizontal wells should be shown by he experiments.

在底水油藏参数基本不变的情况下，研究了水平井的几何参数和生产压差对采油量和采收率的影响。

A simplified PUMA robot force control model is given in this paper. The stability and rubustness is analysised by computer simulation. The step response of position loop and force loop in external alter mode is tested, and prove that the system posses critical damping ratio.

简化得出了PUMA机器人的力控制模型，利用计算机仿真的方法，分析了系统的稳定性及鲁棒性，给出了最佳参数的选择，测试了在外部修正方式下位置控制环及力控制环的阶跃响应，证明位控环具有临界阻尼的特性，并讨论了参数选择值不同时对系统性能的影响。

The parameter space is one-dimension and the geometric meaning of the parameter is the cross ratio of four directional distances between a point and four lines.

其参数空间是一维的，参数的几何意义是点到四条直线的有向距离之交比。

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。