查询词典 fitting of a curve

These parameters can be calculated easily. We proposed some method to build up the model. Our work including: Understand the physical meaning of MTF, Select image quality assessment parameter ,Curve fitting based on basic numeric analysis method,curve fitting based on Neural Network..

本文首先理解理解 MTF 的原理，选择了合适的图像参数，并分别用数值关系和神经网络提出几种拟和数据模型的方法，对模型的正确性分别进行了检验，并给出了相应的结论。

Lsqcurvefit-Torque, least squares curve fitting, mainly for the engine work load curve fitting.

详细说明： Lsqcurvefit-Torque，最小二乘法曲线拟合，主要用于发动机负荷曲线的拟合工作。

In the experiment, moisture absorption curve from 5℃ to 40℃ were drawn, and then corresponding regression equation of each curve was obtained by curve fitting.

在试验中对烤石莼在5~40℃范围的等温吸湿变化规律进行了研究，将曲线通过计算机拟合获得相应的回归方程。

The resulting curve breaks into two approximately straight lines. By purely empirical curve fitting method we obtain two straightline equations. Secondly, the recurrence interval and"rain-strength" relation curve on logarithmic paper will also br...

而在对数坐标轴内，频率和雨力的关系曲线，也分裂为二，分别用二次曲线和直线来配合，综合而成均方差很小的上海暴雨公式，以供市政规划设计的应用。

Because of the dependence of rotating dipole PA curve on layer of field lines, it avoids the degeneracy problem of conventional rotating vector model that all layers of field lines have the same PA curve with fixed inclination and impact angles, therefore it provides a useful way to identify the emission from different layers and constrain the location of emission regions in pulsar magnetosphere by fitting the observed pulsar radio PA data with rotating dipole PA curve.

其与磁力线层等参数的依赖关系避免了传统旋转矢量模型的简并问题－在给定磁倾角和碰撞角情况下所有层磁力线的偏振位置角曲线都一样，这为通过拟合射电偏振观测数据来分辨不同层的辐射，从而限定脉冲星辐射区部位提供了一条有用的途径。

In order to contribute to analyse and compute easily setback moving devices on the projectile fuzes,and to make the fuze devisers be able to get the approximate acceleration curves with a few parameters such as tube length and muzzle velocity of the guns,the displacement-time curve and velocity-time curve of gun interior ballistic are fitted with the Logistic models,then the formula of projectile acceleration curves in bore are gotten by the derivation of the formula of fitting velocity-time curve.

为了便于炮弹引信后坐运动机构的分析和计算，能使引信工作者只根据身管长度和炮口速度等少量参数就能获得弹丸膛内加速度近似曲线，运用Logistic函数拟合火炮内弹道的位移－时间曲线和速度－时间曲线，再对拟合得到的速度－时间曲线求导便得到了弹丸膛内加速度近似曲线。

A, b, and c are curve-fitting constants in the curve equation y="1"–a×(1–x)c and the complementary-curve equation y="a"×(1–x)c, where a is a coefficient, b is the lower limit for x and is less than one, and c is a power constant.

对绘曲线装置，y为规一化输出位变量，x为非零平均值（小于1）到1的规一化输入模拟电压。a、b和c为用曲线方程y=1–a×(1–x)c拟合的常数，补充曲线方程y=a×(1–x)c，在此，a为系数，b为x的较低限制，且小于1，c为功率常数。

The energy which drives the evolution of a curve is constructed based on local image information,the alignment term enhances the speed of curve evolution,and the improved data fitting term which is based on the competition between of the shifted Heaviside functions,makes the curve converge to a better global stationary minimum.

该算法基于图像局部化信息创建驱动曲线演化的能量，引入的配准项提高了曲线的演化速度，基于曲线演化竞争的数据拟合项，使得曲线能更稳定地收敛到一个全局静态最小值，且算法对水平集函数初始化位置不敏感。

Endures solvent BW- I type heavy nitrogen sensitization glue fitting be used for electron, Appearance, Porcelain enamel, Glass, Leather wait for oil dissolve sex print materical, Endures water property BW- II type fitting is used for cotton goods, Sheet fiscal stamp wait for water solubility printing materical, BW- III type fitting be used for china and glass applique silk screen print usage.

耐溶剂BW-I型重氮感光胶适用于电子、仪表、搪瓷、玻璃、皮革等油溶性印料，耐水性BW-II型适用于棉织品、纸张印花等水溶性印料，BW-III型适用于陶瓷和玻璃贴花丝网印刷使用。

It is shown that from the comparison among the results with the calculation methods by surface fitting, quadric surface fitting, and other neural network methods, the accuracy by using the standardization of BP neural network algorithm for elevation fitting is more reliable and stable.

将该方法得到的计算结果与平面拟合、二次曲面拟合及其他神经网络方法计算的结果进行对比得出：标准化动量BP神经网络算法求解高程，精度可靠且稳定。

Hanna: That's over now, isn't it?

都结束了，对吗

You must be ill. You look so pale.

你一定是病了，你的脸色苍白。