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e当量
相关语句
  e-equivalent
     The e-Equivalent and the Disposition of Social Wealth
     e当量与社会财富配置
短句来源
     The centralizing tendency of accumulations and consumptions of the national economy is of quite precise mapping relation with the e-equivalent deduced according to optimization theory a-long with the evolution of time and the distribution of territory.
     随时间演化和随地域分布的国民经济的积累(以及消费)之集中趋势,与按优化理论推导的“e当量”,有相当确切的映射关系.
短句来源
  相似匹配句对
     EQUIVALENT DAMAGE CONVERSION
     当量损伤折算
短句来源
     THE STUDY ON LEAD EQUIVALENT
     铅当量研究
短句来源
     E ′ is an effective elastic modulus.
     E′则为当量弹性模量.
短句来源
     The e-Equivalent and the Disposition of Social Wealth
     e当量与社会财富配置
短句来源
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  e-equivalent
We prove that there are precisely six equational theories E of groupoids with the property that every term is E-equivalent to a unique linear term.
      


A diffusion-reaction model for Type I facilitated transport in the liquid surfactant membranes has been developed. The mass transfer redistances both inside and outside the emulsion globules and the reaction between the diffusing component and the internal reagent are taken into account simultaneously and the perturbation solutions for the non-linear equations have been obtained. Predicted results from the model show that the solutions are convergent; the extraction rate increases with increasing in E, Bi (Biot...

A diffusion-reaction model for Type I facilitated transport in the liquid surfactant membranes has been developed. The mass transfer redistances both inside and outside the emulsion globules and the reaction between the diffusing component and the internal reagent are taken into account simultaneously and the perturbation solutions for the non-linear equations have been obtained. Predicted results from the model show that the solutions are convergent; the extraction rate increases with increasing in E, Bi (Biot Module) and Da (Damkohler Module),.respectivety. From this model, one can estimate whether the process is controlled by diffusion or by reaction. The model predictions are in good agreement with the experimental data on the extraction of acetic acid. In general, the zero-order solution is adequate to describe the extraction process in the liquid surfactant membranes.

本文同时考虑乳液滴内、外的传质以及传递组分与内相试剂在滴内的反应,建立了乳化液膜Ⅰ型促进传递的扩散-反应模型,并求得了其摄动解。模型计算结果表明:所得解均是收敛的,萃取速率分别随E(当量比的3倍)、Bi(Biot数)及Da(Damkhler数)的增加而增加。由此模型可以预测液膜萃取过程中的反应控制区与扩散控制区。模型计算值与萃取醋酸的实验值能很好地吻合。通常,零级解即可描述液膜萃取过程。

The personalization and physicalization of social wealth were discussed. The centralizing tendency of accumulations and consumptions of the national economy is of quite precise mapping relation with the e-equivalent deduced according to optimization theory a-long with the evolution of time and the distribution of territory.

论述了社会财富的人化与物化.随时间演化和随地域分布的国民经济的积累(以及消费)之集中趋势,与按优化理论推导的“e当量”,有相当确切的映射关系.

Fatigue experiments under high - temperature low - cycle state were carried out by using 2. 25Cr - 1 Mo cylinder specimens with ring notch, while some with precrack. By adopting finite element program, the stresses and strains around the notch of the specimen or near the crack tip were calculated. The fatigue life and fatigue crack propagation life of the material under 400℃, 0.2% s-1 strain rate were expressed by the equivalent elastic strain range ,the equivalent plastic strain range p, the equivalent creep...

Fatigue experiments under high - temperature low - cycle state were carried out by using 2. 25Cr - 1 Mo cylinder specimens with ring notch, while some with precrack. By adopting finite element program, the stresses and strains around the notch of the specimen or near the crack tip were calculated. The fatigue life and fatigue crack propagation life of the material under 400℃, 0.2% s-1 strain rate were expressed by the equivalent elastic strain range ,the equivalent plastic strain range p, the equivalent creep strain range ec and the equivalent strain range , respectively. The data of experiment were processed by muluvariate nonlinear regression analysis using Matlab program and the fatigue life and fatigue crack propagation life under the strain control without holding time could be described by the nonlinear combination of the fatigue component, creep component and creep - fatigue interaction component. That is to say, the creep - fatigue interaction is existent in the course of failure, and the fatigue life and fatigue crack propagation life become lower due to its existence. So the effects of the kind of interaction on the fatigue life and fatigue crack propagation life are quantitatively characterized.

采用2.25Cr—1Mo无预裂纹和带预裂纹环状缺口圆柱形试样,进行了多维应力状态下无保持周期应变控制的高温低周疲劳试验,利用有限元程序对试样缺口周围及裂纹尖端附近的应力、应变场进行了分析,分别得到用当量弹性应变范围Δε_e、当量塑性应变范围Δε_p、当量蠕变应变范围Δε_c和当量应变范围Δε表示的材料在400℃、0.2%s~(-1)应变速率下的高温低周疲劳总寿命和裂纹扩展寿命方程。利用Matlab对试验结果进行非线性多元回归,得到用疲劳成分、蠕变成分和蠕变/疲劳交互作用成分三者的非线性组合来表征的材料无保持周期应变控制的疲劳总寿命和裂纹扩展寿命评价方程,即认为整个试样的失效过程中存在着蠕变/疲劳交互作用,正是这种蠕变/疲劳交互作用的存在导致了试样或构件的疲劳总寿命和裂纹扩展寿命的降低,定量的表征了蠕变/疲劳交互作用对材料疲劳总寿命和裂纹扩展寿命的影响。

 
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