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特征曲线

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This paper first analyzes the character and parameter demarcating of Logistic Curve and Picketage Model s S Curve, then puts forward a traffic forecasting method based on this two curve models.

本文分析了逻辑斯蒂曲线和定标模型S曲线的特征和参数标定。

The typomorphism of curve of thermoluminescence of sooty ore bearing quartz has more peaks and increases strength and decreases position of the peaks, while that of opaline barren quartz decreases strength and increases position of the peaks.

烟灰色含矿石英的热发光曲线具有多峰特征,并且峰强大、峰位低;而乳白色不含矿石英的热发光曲线峰位较高,峰强较小。

At the chapters of theory analysis,constitutive equation of dusty is deduced from the results of the experiment and related theories about oblique shock wave.after that relationship of parameters reflecting flow-field characteristic are deduced from theories of shock wave polar .The paper set up conservation equations depicting gas and solid flow-field by double fluid model,thus equations and constitutive equation of granular phase form closed equations.then the paper uses AUSNT vector splitting method to numerically calculate the equations.

理论部分主要包括:利用实验测试结果以及斜激波理论测试出该堆积粉尘的本构方程,然后利用和激波极曲线理论得到反映流场特征参数的变化曲线;本文还利用双流体模型,建立了描述气—固两相流动的守恒型方程组,与本构方程一起构成封闭方程组。

The carboxylation efficiency on May of 1 and 2 year needle of slash pine's half-sib was the lowest while the carboxylation efficiency on August to September of 1 and 2 year needle of slash pine's half-sib was the highest.

使用LI-6400便携式光合测定系统,研究了湿地松优良半同胞家系的光和CO2响应情况,结果表明:不同湿地松半同胞家系光响应曲线、CO2响应曲线的特征参数在家系品种间有极显著差异。

The relation between the parameter of ground motion and time is transformed into a pure random process with the amplitude varying with time. Based on the concept that there is the scaling invariant fractal structure in the transmission of earthquake motion and the self-affinity of the ground motion signal in time domain, an assumption is deduced that the curve of the stationary random noise of the ground motion varying with time is a fractal graph.

将一个运动参数的时间变化过程转化为具有时变振幅的一个纯随机振荡问题,运用地震运动传递具有无特征尺度的分形结构和地运动时域信号具有统计自相似性的概念,提出地面运动随机平稳噪声的时变曲线是一条分形曲线的假设。

Based on the geometric expression of the NURBS curve, a simple and effective method of curve and surface extension is put forward, and the blade surface is then successfully extended with the tangent vector by repeatedly applying the above method.

根据叶片的形状特征,以曲线的几何形式为基础,提出了一种简单实用的曲线曲面延伸方法,实现了切矢量连续的叶片型面的延伸。

Thereafter,the model was solved by Laplace transformation and perturbation analysis technology,and theoretical curve was plotted and analyzed.

利用拉普拉氏变换和摄动分析技术得出了模型的解,绘制了试井分析理论曲线并对曲线特征进行了分析,以及进行了实例分析验证。

A general conic curve fitting is achieved with the standard conic curve parameters and translation matrix parameters and rotation matrix parameters.

推导了基于圆锥曲线标准表达形式参数,平移矩阵参数和旋转矩阵参数进行圆锥曲线特征拟合的理论。

The curve obviously declined from the low frequency to the middle frequency section, and was reduced to zero in the high frequency section, which objectively showed the change in imaging characteristics of the eyes from the low to high frequency areas.

PSF分析系统可直接采用屈光系统MTF曲线表达人眼的成像特征,该曲线MTF值从低频至中频迅速下降,高频趋向缓和至零,定量并客观地表达了人眼成像质量从低频至高频的改变。

Mainly research results were as follows:(1)Proper scanning conditions which were used for establishing NIRS nondestructive detecting models were confirmed.The results of test indicated that proper scanning times was 1 times to one point;proper scanning manner was 2 times by 180°running to several points; the enactment of scanning parameters simply satisfied the condition that the spectral line of samples and the spectral line of contrast were tangent in conquest line;it can obtain the greatest prediction performance with the spectral data which were determined in an aphotic room absolutely.

具体的研究结果如下:(1)南果梨近红外透射光谱的适宜扫描方式为以果柄-果蒂为轴1 80°转动扫描2次、适宜的光谱扫描次数为单测点扫描一次、扫描参数的设定只要满足待测样品光谱曲线和参照物光谱曲线均在特征峰处相切于征服线即可,光谱测定的最佳环境条件为在完全遮光的房间内进行样品光谱的采集。

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I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

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起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。

Ah may dee:You are chinese living in a democratic country.

你是居住在民主国家的中国人吧。