查询词典 frequency curve

The parameters of GHM model are determined by nonlinear curve fitting in complex frequency domain. This is converted into nonlinear optimization problem with constrained condition. The corresponding program is completed.

GHM模型的参数通过复频域内的非线性曲线拟合确定，最终转化为具有约束条件的非线性优化问题，并编制了相应的非线性优化程序。

Both the a-axis and ab-plane dip towards the downstream , the dip angles of the a-axis are low and concentrated, being 7—8°,the ab-plane dips at 7～21°, and the a-axis has more preferred dip of fabrics than the ab-plane; the peak of the grain-size frequency distribution curve of deposits in the Lushan area is in the range of 4 and 5 φ;The quartz sand grains are subangular and have well-developed conchoidal fractures, parallel striatio ns, upturned cleavage flakes,"V"-shaped holes and siliceous deposits.

摘 要：庐山第四纪泥砾沉积物的砾石组构特征表明，砾石岩性与山体基岩基本一致，砾石的等体积球径较小，加权平均砾径较中值砾径大，分选系数大于1，分选性差，φ值相对较小，平均为0.66，F值相对较大，在2左右，F/φ比值介于2.75～4.75，ρ值集中且较小，为22.75%～37.75%，砾石以棱角、次棱角状为主，磨圆较差；a轴和ab面都倾向沟谷下游，a轴倾角集中且较小，为7～8°，ab面倾角为7～21°，a轴较ab面具有更为优势的组构倾向；沉积物粒度频率曲线在4～5Φ范围内表现为峰；石英砂颗粒为次棱角状，贝壳状断口发育，具平行擦痕、上翻解理片、V形坑和硅质沉淀。

RESULTS Danshutong tablets significantly increased the frequency, amplitude, and the area under curve of rabbit gallbladder contractibility and the bile circulation,it also relaxed the sphincter of Oddi.

结果 胆舒通片能增加胆囊收缩曲线下面积，显著增加家兔胆囊收缩的频率和收缩幅度，表明胆舒通片有增强胆囊收缩的作用。

Methods BNP results from 103 patients and 44 healthy people were collected. Cumulative frequency distribution form with Excel was made. Best coordinate was established and the area under curve calculated.

方法］将103例患者和44例正常人BNP结果用Execl软件作累积频数分布表，然后以灵敏度为纵坐标，以1-特异性为横坐标，建立ROC曲线评价系统，确定最佳诊断分界值，计算ROC曲线下面积。

The standard function mode is that the system's excitation functions are sine wave, square wave and curve of free little damped vibration, the vibration's frequency are about 2Hz. The vibration mode must be in accord with the crane's work status in the vision computer.

调查表明，集装箱桥机驾驶员座椅工作中更多的是小车运行方向的前后振动，所以我们的多自由度座椅振动平台采用X方向的单自由度激励，即可实现座椅振动的大部分体感功能，同时开发成本也大大降低。

By means of a linear array CCD lightintensity distribution measuring system, via the variation of the frequency and the power of ultrasonic wave, the direction control and the intensity modulation for the laser beam can be carried out. The relation curve between acoustooptic deflexion and modulation measurement is given.

在实验中，应用线阵CCD光强分布测量仪等，通过改变超声波的频率和功率，分别实现了对激光束方向的控制和强度的调制；定量给出了声光偏转量的关系曲线和声光调制测量的关系曲线。

Such classes are separated by 'natural breaks'in the frequency distribution or the analogous cumulative curve.

这样的级可由频率分布或类似的累积曲线中的自然断点划分开来。

It is seen from the fitting results between the frequency distribution curve and the empirical distribution dots that it is proper to use the generalized Pareto distribution to describe the probability distribution of the partial duration series.

从频率分布曲线与经验分布点据拟合的情况看，运用广义Pareto概率分布来描述部分历时序列的概率分布是合适的。

The simulation results show that hysteresis phenomenon of the velocity curve becomes more and more serious,and the area enveloped by the ergogram becomes smaller and smaller with the increase of frequency,indicatin...

从扫频结果可知，速度曲线随频率增加滞回现象越来越严重，示功图所包围的面积随频率增大越来越小，表明工作频率太大不利于减振器特性的发挥。

According to the relationship between parameters and resonance curve, the frequency characteristics of resonance are examined.

基于这些参数与共振曲线的关系，提出了共振状态下的频率特性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。