重力模型法 Gravity Model Method
三维重力模型 three-dimensional gravity modeling
地球重力模型 [测] earth gravity model
双约束重力模型 Dual-constrained Gravity Model
三维约束重力模型 tri-constrained gravity model
重复力模型 Repeatability model
地球重力场模型 earthgravitymodel ; [地物] earth gravity field model ; earth gravitational field model
重力场模型 gravity field model
微重力感受模型 Graviperception model
The method of trip distribution forecasting bases on gravity model and computes the distribution amount probability of each areas with the region influence factors and the impedance function. After all, we can get the distribution amount by Furness model.
交通分布预测依据小区的区位影响系数和小区间的阻抗函数,采用重力模型的思想,得到小区间出行分布量的概率,再用Furness模型迭代便可得到小区间的交通分布量。
参考来源 - 规划新城区交通生成和分布预测方法的探讨·2,447,543篇论文数据,部分数据来源于NoteExpress
应用重力模型的之前,你应该先校准阻抗函数。
Prior to applying a gravity model, one has to calibrate the impedance function.
为简单起见,本文主要考虑的是一个二维无重力模型。
And for the sake of simple, we considered a 2d model without gravity.
对铁路行包od运量的预测提出一种基于重力模型的改进方法。
The paper puts forward an improved method on the basis of gravity model to forecast the od freight volume of railway luggage and parcel transportation.
Conversely, if you get an answer and it doesn't seem to make sense, then you've got to go back and ask, am I violating some of the assumptions, and here you will find the assumption that the particle had that acceleration a is true as long it's freely falling under gravity but not when you hit the ground.
反过来说,如果你得到一个结果,发现似乎是错的,那么你就应该回过头来问问自己,我是不是违反某些前提了,这个模型中,你就发现,只要质点在重力作用下自由下落,质点具有加速度a的前提是正确的,但是落地后就不成立了
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