参数曲线

Geotechnical engineering; settlement prediction model; logistic curve; differential evolution; parameter optimization

岩土工程；沉降预测模型；逻辑斯谛曲线；微分进化算法；参数优化

The effect of characteristic parameters on differential thermal analysis curve, solidification setup temperature and cooling rate on dendrite arm space was studied, and IAS-4 Image Analysis System was used for microstructural examination.

本文采用差热分析方法研究DTA曲线特征参数、凝固开始温度和冷却速率对二次枝晶间距λDAS的影响，同时使用IAS - 4图像分析系统分析了合金的微观组织。

Based on these experimental spectra, desorption activation energies of benzene, thiophene, and octane on NaY were calculated by a traditional model, the least-squares method, and the first differential curve of the TPD model.

以这些TPD谱图为基础，分别采用传统TPD计算模型、最小二乘法以及一阶微分曲线法计算了苯、噻吩和正辛烷在NaY上的脱附活化能和动力学参数。

In addition, the changing of particle distribution in longitudinal phase space during the accelerating process has been obtained.

模拟结果给出了不同时刻粒子在纵向相空间的分布以及各主要高频参数随时间的变化曲线。

Usage: suitable for auto dynamotor performance test, print and save speciality curve and parameters.

用途：适用于汽车发电机的性能测试，打印并储存特性曲线与参数。

This software can not only measure the real time data of hydroelectric plant,but also carry out the auto generate electricity on the hydroelectric plant and ordinal startup-stop of the dynamotor. The software also carrys out the functions of alarm disposal,report forms,print and load curve.

该软件不仅实现了对水电站内各种模拟参数和数字信号的实时监测功能，还实现了对水电站的自动发电、机组顺序启停的控制，以及报警处理、报表打印、负荷曲线等功能。

The equivalent circuit model of electrobath is obtained by the methods of electrochemical impedance spectroscopy and curve fitting.

基于电化学原理描述了双电层电容的产生及其影响，通过采用电化学阻抗谱方法和测量阶跃响应曲线并进行参数拟合的方法，建立了电解槽负载的等效电路模型。

It is suggested that the value selection of , and PID coefficient is significant for the design of the micron electrohydraulic feedback control system.

通过系统仿真研究了整个电液位置反馈控制系统的动态特性并与试验曲线进行了分析比较，指出合理的选取，及PID参数值对该电液位置控制系统的性能是至关重要的。

The scattering by different shape and different media such as dielectric chiral or conduct circular cylider or elliptic cylinder are calculated and RCS curves are maped. The relation between the optimal polarization of the chiral elliptic cylinder and incident angle are maped. In accordance with the map, the information which is useful for radar target identification can be obtained.

对不同形状及参数的导体圆柱、椭圆柱，一般介质圆柱、椭圆柱，旋波媒质椭圆柱的散射特性进行了计算，给出了其RCS的变化曲线，并对极化散射矩阵进行了分析给出了旋波媒质椭柱最优极化的分布图，指出了其可提取用于目标识别的极化信息。

Signal analysis;parabola parameter spline curve;Empirical Mode Decomposition;Intrinsic Mode Function;Hilbert transform

信号分析；抛物参数样条曲线；经验模态分解；固有模态函数；希尔伯特变换

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。