查询词典 parameter

College of Guandong Business, Guanzhou 510320, China）Abstract: Since large-scale vertical quench furnace is voluminous, whose working condition is a typically complex process with distributed parameter, nonlinear, multi-inputs/multi-outputs, close coupled variables, etc, dynamically decoupling control algorithm of temperature distributed parameter system in the furnace was presented, by which the whole system was decoupled to several subsystems and the implementation of controller was simplified. With finite difference approximation, the space and time step size was solved to ensure the convergency of finite difference approximation. After decoupling, the subsystems were controlled with self-learning PID control algorithm. The results show that the temperature control precision and homogeneity are improved; the overshoot and process in temperature rising period are reduced simultaneity.

摘 要：针对大型立式淬火炉体积庞大，工况复杂，炉内温度分布呈本征非均匀性，具有多输入/多输出、非线性、强耦合等特性，难以实现炉内温度高精度高均匀性控制目标等问题，提出一种温度分布参数系统动态解耦控制算法，其原理是：采用有限维逼近方法将对象解耦为多个独立的子系统，简化控制器的实现过程；通过分析有限维逼近方法的收敛性，获得保证收敛性的空间和时间步长应满足的条件；解耦后的子系统采用自学习PID控制算法，实现炉内温度高精度和高均匀性控制以及升温过程的快速性和小超调。

Fine User Interface.And the system was circulated with a man-machine conversation.The purpose to do all of this is just to let computer protract Switched Reluctance Motor with an idea that people alter the parameter of Switched Reluctance Motor.Because Switched Reluctance Motors have a character: although the parameter and size changed ,the structure is fixedness .

该课题主要针对开关磁阻电机的计算机辅助设计，以流行的VisualBasic作为开关磁阻电机软件的开发平台，结合AutuCAD2000关于VisualBasic的二次开发，开发出一个具有良好用户界面的交互性的开关磁阻电机CAD软件系统。

This design wants to design a complete set of three axes five speed gearboxeses , it mainly include three parts : The first part , to make sure the basic parameter of the gearbox assurance ; The second part, The contact strength verify-check and the flection strength verify-check of each wheel gear of the gearbox, mainly verify whether each wheel gear satisfy various strength conditions with according to the giving parameter ; The third part , to progress verify-check intension of the axes Four-part cent, to calculate the life of the bearings.

本次设计是要设计一部较为完整的五档变速器，其中主要包括三部分：第一部分，变速器基本参数的确定；第二部分，变速器的各档齿轮的接触强度校核和弯曲强度校核，主要是根据所给的参数来验证各档齿轮是否满足各项强度条件；第三部分，进行轴的强度校核；第四部分，轴承的寿命计算。

It is found that the offset of weight function should change with the Peclet number, and that both the parameter q of radial basis functions and the size of the support domain have a greater influence on the calculation results than the RBF parameter a and the quantity of Gauss integral points.

结果表明：权函数的偏置量需要随着对流强弱而变化，径向基函数参数q、支持域尺寸对计算结果的影响比较大，RBF参数a、Gauss积分子域数对计算结果的影响相对较小。

In particular, Stolarsky mean are generalized from two variables to n variables. Moreover,we make ωi become weight function to diversity the kinds of mean function. For the mean family, we discuss mean family with single parameter or multi-parameter .

此外还通过改变权w_i，使之成为权函数，从而使n元平均函数的形式多样化，在n元平均族中给出了单参数和多参数平均族，并讨论了具体的单参数的幂平均族和指数平均族，多参数的Dresher平均以及由此构造的另一种形式的双参数平均族。

This paper provides a process: according to the experimental data from the groundsill load experiment, we can identify the parameter of the loess nonlinear model by using the genetic algorithm before construct the building. By the parameter we can forecast the groundsill distortion.

本论文所作的工作提供了这样一种思路，依据建筑物建造之前，从地基土载荷试验中获取的试验数据，通过由遗传算法所建立的黄土非线性本构模型参数反演的方法，可以进行黄土非线性本构模型参数的优化识别。

We have shown that the emission spectrum of the harmonically trapped atom is closely dependent on the initial state of the system, Lamb-Dicke parameter and the detuning parameter.

我们的研究结果表明俘获原子发射谱不仅依赖系统的初态，还与调谐参数和Lamb-Dicke参数有密切关系。

Presenting elementary comparative study between Chen-Chen three parameter concrete model and Hinton double parameter concrete model in the nonlinearly analysis.

对Chen-Chen三参数和Hinton双参数两种混凝土本构模型在非线性分析中的应用做了初步的对比分析。

The text integrate a saving network system on a city and to adjust the UNIX system function parameter on the PC-Servers, and construe and discuss hypotaxis that the UNIX system function parameter with bank application system.

本文结合一个城市储蓄通存通兑网络系统及微机服务器群UNIX系统核心参数的调整，对其参数与银行业务应用系统的相互关系进行了分析和探讨。

As a parameter that has impact to hysteresis model, the online identification of parameterαhas been studied.

第五章介绍了GMA的结构和控制系统原型，重点阐述了恒流源的设计。

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。