幂律模型

并取得了以下结论：（1）当泡沫质量小于0.9时，CO2泡沫压裂液的流变模型可用幂律模型描述；

And the following conclusions were concluded : ( 1 ) when the foam quality is smaller than 0.9 , the foam fluid can be depicted by the power law model ;

该体系的熔体流动行为不能用幂律模型描述，但它却能较好地服从修正的Casson万程。

Flow behavior of these system melts investigated cannot be described with the power law model , but follows the modified casson equation well .

度量银行操作风险的POT幂律模型及其应用

Using the POT Power Law Model to Evaluate Banking Operational Risk

本文在探讨塑料熔体粘性流动模型的基础上，使用幂律模型和Cross模型对几种塑料熔体流变数据进行处理，得出各自的拟合常数，并对拟合结果进行分析比较。

Based on the study of the flow model of plastics melt , Power-law Model and Cross Model were used to study the plastics melt Theological data and the regression coefficient was obtained , discussion on the results was also made .

基于Arrhenius幂律模型，给出了分析恒定应力加速可靠性增长试验分组数据的图方法。

Based on the model of Arrhenius power law , the graphical methods for analysing grouped data of constant stress accelerated reliability growth test were given .

在分析大量水文气象资料的基础上，提出了时间风险率确定条件下降雨量极值随降水历时变化的幂律模型，找到了用业务自记资料估计1min降雨量极值的方法。

The method estimating 1-minute rainfall extremes according to operational autographic data is given in the paper .

一般情况下，幂律模型适合于大部分非牛顿流体。

In general , the power law model fitted most of non-Newtonian fluids .

胶束体系的流动曲线可用幂律模型描述。

The flow-curves of the micelle systems may be simulated by power 's-law model .

结果表明：该压裂液具有剪切稀化性质，可用幂律模型处理；

The experiment results show that the foam fluid is a shear-thinning fluid , can be simulated with power-law model .

之后用对数周期幂律模型对泡沫进行拟合，找出泡沫破裂的临界时间。

Then use the log-periodic power law model to fit on the bubble , then can identify the critical time that bubble burst .

对数周期幂律模型有两个特征，一是对数周期性振荡，二是幂律增长或衰减。

There are two features in Log-periodic power law model , one is logarithmic oscillates in a period , the second is the power-law growth or decay .

结果表明：黄原胶水溶液为假塑性流体，幂律模型能很好地关联其流变方程；

The results showed that xanthan gum solution behaved like pseudoplastic fluid and the relationship between its viscosity and shear rate could be described by the power-law model .

对于冲击环境下的速度相关幂律模型，分析表明该模型的阻尼系数和缓冲器结构尺寸有关。

For power law model related the speed in impact environment , the analysis shows that the model is relevant of the damping coefficient and the size of the structure .

对于幂律模型，即使流量非常大，经过有限次迭代，计算都能够收敛，并得到合理的结果。

When the power-law constitutive model is used , even though the flow rate is rather high , the computation can be finished and yield rational results only after finite times of iteration .

本文不袭用传统大型注塑模浇注系统调计定剪切速率计算截面尺寸等观点，在聚合物幂律模型基础上，通过合理分配压力降，采用解析法导出了新的流道截面尺寸优化设计模型。

Contrary to some traditional views about the runner design of injection mold , a optimum runner design method , based on power law and the reasonable attribution of pressure drop , was proposed in this paper .

非牛顿流体分别用幂律模型和宾汉流模型进行了分析，通过与国外实验研究得出的经验公式进行对比发现，连续油管钻井摩擦压降与宾汉流模型所进行的数值模拟结果一致。

Non Newtonian fluid respectively using the power law model and Bingham flow model is analyzed , with the foreign experimental study that the empirical formula for contrast detection , coiled tubing drilling frictional pressure drop and the numerical simulation results of Bingham flow model are consistent .

碰撞模型分别选用了硬球分子模型和负幂律分子模型。

Models for intermolecular collisions are assumed hard-sphere model and inverse power law model .

小子样条件下幂律退化模型的加速因子分析

Accelerate factor analysis for power law degradation model under the condition of small sampling test

推导了加速寿命试验条件下幂律退化模型参数的极大似然估计。

Then the parameter 's MLE of power law model was carried out under accelerated environment .

而相同条件下用变系数二阶流体模型计算的平均流量比用幂律流体模型计算的平均流量小；

The average flow of second order fluid with variable coefficients is smaller than that of the power-law fluid under the same condition ;

其本构方程采用幂律流体模型方程。

For the flow into mould cavity the constitutive equation of power law fluid is used as a rheological model of polymer fluid .

幂律流体模型用来表征剪切变薄的流变学特征，质量守恒的油膜破裂算法用于雷诺方程的求解。

Shear thinning is characterized by the Power law fluid model . A mass conserving cavitation algorithm is used to solve the modified Reynolds equation .

结合长寿命、高可靠性产品加速寿命试验的特点，在失效机理不变的条件下，提出了幂律退化模型加速因子的概念。

Foundation on the characteristics of long life and high reliability products , on the condition of const failure mechanism , the accelerate factor definition of power law degradation model is proposed firstly .

研究结果如下：首先，研究了微生物多糖黄原胶的流变特性，其流变模型满足幂律流体模型，表现出良好的剪切稀释性，为典型假塑性流体。

There are some results which are as followed : First of all , the rheological properties of microbiology polysaccharides Xanthan gum have been studied , and the result showed that it was typical pseudoplastic fluid having good performance of the shear diluted .

提出一个修正的幂律P-α模型来描述Hugoniot状态，验证了Gruneisen状态方程对于多孔材料的有效性。

A modified power-law P-a model is proposed to describe the Hugoniot states . The Gruneisen equation of state is validated .

应用时域阿仑（Allan）方差与幂律谱噪声模型的关系，可以区分调相噪声，调频白噪声，调频闪交噪声和频率随机游动噪声。但不能区别调相白噪声和调相闪变噪声。

By using the relation between the Allan variance and the power spectrum law 's mode of noise we can distinguish phase , white frequency , flicker frequency and frequency randon walk noises , but can not distinguish white phase noise from fricker phase noise .

基于Arrhenius或逆幂律幂律模型，对恒定应力加速可靠性增长试验（CSARGT）的单独故障时间数据的情况，给出了统计分析方法，并用数值例说明了这些方法。

Based on Arrhenius or inverse power law power law model , the statistical methods analysed individual failure time data of constant stress accelerated reliability growth testing ( CSARGT ) were given , and these methods were illustrated .

幂律一威布尔模型下简单步进应力加速寿命试验的区间估计

Interval estimates of simple step-stress accelerated life testing for the power-Weibull model

计算结果与1/7幂次律单层模型进行了比较，吻合较好。

Results obtained are compared with the analytic values of the 1 / 7 power-law One-Layer Model ( OLM ) and show good agreement .

对幂律-威布尔模型，利用一组序进应力加速寿命试验数据和另一组恒定应力加速寿命试验数据给出了参数的点估计和区间估计，并用一个实例说明方法的应用。

The point and interval estimation of the parameters in the power Weibull model is presented together with an illustration example using two data sets , one from progressive stress accelerated life test ( PSALT ) and the other from constant stress accelerated life test ( CSALT ) .