参数

Parametric model of brake pad and parametric design of brake shoe have been accomplished on the base of parametric method, secondary development tools on UG, the method of setting environment variables about development system and establishing method of application program, and which can provide the foundation for the development platform of automotive brake system.

对鼓式制动器的组件进行了离散化处理，在介绍了参数化方法、UG二次开发工具、开发系统环境变量的设置以及应用程序创建方法的基础上，完成了鼓式制动器垫片参数化模型的建立以及制动蹄的参数化设计，为汽车制动器专用开发平台的建立奠定了基础。

Based on the experimental data, all the parameters in the R-G equation are got, which are used to characterize the curve of firstly breaking up and decaying stress of the waxy crude oil at different temperature. The relationship between these parameters and temperature are also studied and made clear.

利用实验数据获得了不同温度下描述大庆原油初次裂降过程的R-G模型方程中的模型参数，对模型中的参数与温度的关系进行了曲线拟合，得到了各参数与温度的关系。

With the calculating the damping circuit parameter of traction coil on SS4G type electric locomotive ,the reasons of the frequently burning down is analyzed,and the method of calculating damping circuit parameter is concluded.

通过对 SS4G型电力机车牵引绕组阻尼电路参数的计算，分析了阻尼电路频繁损坏的可能原因，并归纳了阻尼电路参数的计算方法，最后提出了阻尼电路参数的改进建议。

Relative root elongation, Al content and callose content in root tips and hematoxylin staining were compared in evaluating plants' tolerance of Al stress.

利用相对根伸长率、根尖Al含量和根尖胼胝质含量等三项参数结合苏木精染色法，研究Al胁迫下，各参数在评价植物耐Al性上的地位，以及各参数间的相互关系。

Call mode, input, output and parameters of several MPI collective communication operations in CAMPI are discussed. We have implemented barrier, broadcast and reduction operations in CAMPI and have analyzed application performance. In performance contrast, CAMPI can archive better performance improvement relative to MPICH.

通过讨论多种MPI的集合操作，给出它们在CAMPI中的函数调用方式、输入参数描述、输出参数描述、参数说明和函数说明，重点针对同步、广播和归约操作，实现了CAMPI集合通信操作库的子集，并且给出应用性能分析，在性能比较中，相对MPICH可以获得较高的性能改善。

The simulation shows that with short CF the new parameters performance excels the parameters of CATT and with long CP the performance of these two parameters are almost equal.

仿真表明，新参数在短CP时性能优于CATT的参数，而在使用长CP时，2组参数的性能几乎是一致的。

The mathematical models in the condition of parameter variations are not only used to analyze the effects of parameters on system performance, but also play the important role in improving the celerity and veracity of identification algorithms.

在实时控制中，参数在线辨识算法的复杂程度直接影响系统控制的实时性和动态性能，而参数变化情况下系统的数学模型，不仅能够用于分析参数变化对系统性能的影响，而且对提高辨识算法的快速性和准确性有重要的作用。

After hundreds of discharge experiments under the conditions of different capillary geometrical parameters, Ablation capillary materials, the comprehensive experimental character of free injection plasma generator is worked out.

通过在不同毛细管几何参数、不同消融毛细管材料、不同PFN放电参数、不同脉冲叠加方式条件下的百余次放电实验，得出了自由喷射等离子体发生器主要放电特征参数在不同条件下较全面的实验变化规律。

The characteristic exponent based on a probabilistic dynamical system is calculated, which provides some useful information on unstable periodic orbits of the chaotic economic dynamical system. An effective controlling parameter is chosen by discussing the sign of the characteristic exponent. Furthermore, the control regions of the parameter variable are proposed. Therefore the controllable domain of chaos in the chaotic economic model can be obtained.

提出一种等价关系，计算基于概率的动力系统的特征指数，给出混沌经济动力系统的不稳定周期轨道的有用信息，通过讨论特征指数的符号，选择有效的控制参数，得到相应的控制参数取值范围，从而得到混沌经济模型中的参数变量的混沌控制域。

According to the quasistatic model, the relationship is established between electron residual energy and driven laser polarization, intensity, wavelength, pulse and media ionization potential, residual charges. The electron residual energy change with the driven laser parameters and the media characteristical parameters is calculated. According to the calculated results, adequate driven laser parameters will be favor of the realization of OFI X-ray laser amplification.

作者根据准静态模型，建立了电子剩余能随驱动激光偏振度、激光强度、波长、脉宽以及介质电离能、剩余电荷数关系式，定量计算了电子剩余能随驱动激光参数以及介质本身一些性能参数变化关系，根据计算结果提出采用适合的驱动激光参数可能更有利于实现光场感应电离的X射线激光放大。

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。