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曲线拟合

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Results The uncertainty from sampling,standard stock solution diluted, standard curve and recoveries are the key factors.

结果 不确定度的主要来源:(1)采样引入的不确定度;(2)标准溶液配制引入的不确定度;(3)工作曲线拟合时引入的不确定度;(4)回收率不确定度。

A novel method of calculating spectral response function is proposed for color scanner, which combines polynomial fitting and spectral response function fitting methods.

提出一种结合曲线拟合和光谱响应的计算法,保证了计算结果收敛,而且具有较好的计算精度。

The algorithm provided in this text is general and it can be expaned to other field, such as spline approximation, function approximation and the curve fitting.

本文提供的逼近算法具有一般性,可将其推广到其它领域,如样条逼近、函数逼近、曲线拟合

PatternⅡis a highclustering multifractal pattern, and the fitting extent between the second tangential line and the curve is bad, showing obvious deviation. Some elements present rather obvious deviation, reflecting the superimposition of highcontent element points on Pattern I.

模式Ⅱ是一种具有高丛集的多重分形模式,第二直线段与曲线拟合程度较差,有明显的偏离,它反映了元素的高含量点在模式Ⅰ上的叠加。

Introduced the basic principles, implementation, and the theoretical curve fitting method, and gives the implementation process and the preparation of some of the software interface.

介绍了基本原理,执行办法,以及曲线拟合的理论方法,并给出了实现的程序和编制软件的部分界面。

Either in binomial or in trinomial regression, the regression coefficient reached the significant correlation at 0.01 levels, which means the growth ring age has intense influence on the microfibril angle.

枫杨微纤丝角与生长轮年龄的关系无论是进行二项式回归还是三项式回归,回归曲线拟合性都很强,复相关系数都达到0.01的极显著水平,表明微纤丝角受生长轮年龄的影响十分强烈。

By derivation according to Darcy's law, the transfusion formula of chemical grouting in the sand was achieved. And then, the capillary viscosimeter was adapted to measurement the viscosity of seriflux. Finally, the change law of seriflux kinetic viscosity varying with time by fitting curve was deduced.

首先在达西定律的基础上推导出化学浆液在砂土中的渗流公式,然后采用品氏毛细管粘度计对浆液的粘度进行测定,通过曲线拟合回归总结出浆液粘度随时间变化规律,最终得出浆液在砂土中的渗流规律。

Along with the increase of the velocity of whisk, the velocity of extraction and the quantity of extraction increase too.

最后,本文对提取率的特性曲线拟合方法进行了深入研究,引进了小波作为一种新的分析工具。

Targeting the biomass rice stalk,we use linestone as catalyst and cracking catalyse the tar which was pyrolysised from the target.We build the rice straw biomass gasification tar removal catalytic cracking process model by the least squares support vector machine model and optimize the model parameters through genetic algorithm.We also has gotten the best catalytic cracking temperature and gas residence time, making the highest rate of catalytic cracking tar.We made wood biomass as a target analysis so that we can thermally crack tar,and we can use genetic algorithms to optimize the model parameters that is based on the wood biomass gasification pyrolysis tar removal process model through the least-squares fitting method,then we got the best pyrolysis temperature and equivalence ratio,so that it is possible to make the tar content reach the minianum.Based on the least squares support vector machine model,we had established the model of the biomass sawdust Compression molding process and fit the Optimization Parameters objective function of the molding process .

以生物质稻秆为对象,采用石灰石作为催化剂对稻秆热解焦油进行催化裂解,由最小二乘支持向量机模型建立了生物质稻秆气化焦油催化裂解脱除过程的模型,并用遗传算法对模型参数进行了优化,得到了最佳的催化裂解温度和气相停留时间,使得焦油催化裂解率达到最高;以生物质木屑作为分析对象,对其进行热裂解脱焦,并依据最小二乘曲线拟合方法建立了生物质木屑气化焦油热裂解脱除过程的模型,用遗传算法对模型参数进行了优化,得到了最佳的热裂解温度和当量比,使得焦油含量达到最小。

An efficient central ellipse algorithm for estimating the echo peak positions of ultrasonic sampling was presented to find the accurate receive time of echo by searching the peak of energy bursts, which is base on the theories of energy centrobaric correction method and least square method in the ultrasonic ranging system.

基于能量重心校正法和最小二乘法的原理,提出了一种改进型椭圆中心超声回波寻峰算法:通过曲线拟合搜索椭圆中心点,即回波信号能量集中点,进而找到回波信号的峰值点。

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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

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三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。