查询词典 exponential curve

Based on a study of the influencing factors to ports throughputs, this paper analyzes the relationship between the factors and the throughputs, used the linear regression prediction models to forecast the throughput of nationwide, so the coastal ports can be achieved, then based on the relations of the whole and the part, we can got the throughput of Tianjin, Dalian and Qingdao port; in addition, this text choused to use three models of trend extrapolation model , and made the detailed introduction to these three model"s principles, e.g. the Logistic growth curve Model, grey system model and exponential smoothing model to Predict the Tianjin, Dalian and Qingdao ports" throughput, compared these results, got three ports throughput in 2007 and 2010 years.

并在此基础上，通过整体与局部的关系，再预测环渤海港口群中的天津、大连和青岛港的货物及集装箱吞吐量；另外，本文还选用了趋势外推法中的三个预测模型，并对这三个模型原理作了详细的介绍，然后引用&逻辑斯谛生长函数&模型预测了天津、大连和青岛港集装箱吞吐量；用指数平滑和灰色系统模型预测这三港的货物及集装箱吞吐量；最后，通过分析比较这些模型的预测结果，得出三港在2007和2010年货物及集装箱吞吐量预测结果。

Compared with Mg2+,the physiological cofactor,Mn2+has a slight activation effect on GTP-hydrolysis activity.The kobs of the exponential phase of the experiment curve of Mn2+is two-times higher than that of Mg2+under saturated condition.And the velocity of the steady state is lower than that of Mg2+.

相对于生理条件下的辅基Mg2+而言，Mn2+对Cdc42Hs酶活力有所激活，表现在饱和浓度时，实验曲线指数项的表观速率常数kobs有2倍左右的提高，而其稳态反应速度要低于Mg2+。

A new gauge control method for plate head was developed.For the plates of different steel grade and different dimensions,the plasticity coefficient is calculated, and gauge compensation for plate head is automatically adjusted.Adopting the exponential compensation curve,the gauge deviation is allowable after cropping, and metal yield can be improved.

在此基础上开发了一种新型头部厚度控制的方法，可以在不同钢种和不同规格的轧制条件下，利用轧制过程实际数据，进行轧件塑性系数计算，自动修正头部沉入量；采用指数型补偿曲线，使钢板切头之后成品厚度尺寸达标并且切头质量减少，提高了产品的成材率。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。