logarithmic equation

CONCLUSION : Recurrent cumulative probability can be analyzed with logarithmic equation , and the recurrent rate during an interval in 15 years can be calculated according to the equation .

结论：单相抑郁症的复发累积概率能用对数方程描述，根据这一方程，可在15年内推算一个时点到另一时点的区间复发概率。

The paper suggests the use of a logarithmic equation as a mathematical model of the true stress-strain relation and short-time stress relaxation . Furthermore , we derived a series of formulas for spring-back angle and radius in pure plastic bending and hot sizing .

本文提出用对数方程作为应力应变关系及高温短时应力松弛的数学模型，进而求得了板料在热校形中的塑性纯弯曲回弹角度及回弹半径公式。

⑵ The release of ammonia nitrogen in sediments over time showed the law of logarithmic equation .

⑵沉积物中氨氮随时间的释放函数符合对数方程。

There will be lots of observational data in the field experiments , the temperature data in the other bores at the same elevation of the leakage passage is selected and curve fitted under the logarithmic equation model .

而现场测试试验中有大量温度观测数据，提取与渗漏通道同一高程其它钻孔的温度值，并将这些实验数据在对数函数理论模型下进行曲线拟合，从而可以计算出渗漏通道半径。

Establishment and application of logarithmic model equation of Mohr envelop

莫尔包络线对数模型方程的建立与应用

Through theoretical analysis of rheological properties of frozen soil , the logarithmic creep equation of frozen clay is established under complex stress state .

通过对冻土的流变特性进行理论分析，建立了冻黏土在复杂应力状态下的对数型蠕变方程。

In this paper , the results of the mixing ratio test and creep test of the mixture are given , with the regression coefficients according to logarithmic creep equation and K-B model 's creep equation .

文中给出了材料的配比试验和蠕变试验的结果，得到按对数型蠕变方程和西原模型蠕变方程拟合的回归系数。

The paper makes some analysis and discussion for establishing stage-discharge relation model , selecting 3 mathematic models : power exponential equation , logarithmic function equation and floating polynomial equation , in allusion to the problems of decided line and calculated discharge by handwork .

文章针对手工定线、推流的诸多问题，采用幂指数方程、对数函数方程、浮动多项式方程等3种数学模型对水位流量关系模型的建立进行了一些初步分析、探索。

Based on analyzing the variation of shearing force and the tube deformation during stamping and shearing process , a new curve of the shearing knife shape was designed by the abnormal logarithmic curve equation to improve the regular roundness of sheared tubes .

在分析钢管冲压剪切过程中剪切力变化以及钢管变形原因的基础上，采用变态对数曲线方程设计了新型的刀片形状曲线，大大地提高了钢管剪切正圆度。