对于这种复杂现象,可以建立一些简单的设想和数学模型,然后在这些设想的框架上来模拟自然。于是就有了凝聚态物理中比较基础的有限粘结扩散模型(DLA),通过利用简单的随机行走和编程,任何人都可以利用电脑去模拟大自然的分形。 这里简单介绍一种简易的DLA模型:先画一个矩形框,比如100×80像素。在框里划分出精细的格子,比...
diffusion-limited aggregation modeldrainage networkrandom walkergridtwo-dimensional random walkheadward growthWe propose a modified diffusion-limited aggregation (DLA) model for the evolution of fluvial drainage networks. Random walkers are introduced randomly on a grid, and each two-dimensional random ...
We introduce in the diffusion-limited aggregation model an internal degree of freedom, i. 在扩散限制凝聚模型的基础上引入粒子的自旋自由度(包括自旋向上和向下),并假设粒子间存在幂次Ising磁相互作用,采用MonteCarlo方法研究了在不同相互作用力程情况下磁性粒子的分形生长规律。2...
扩散有限聚合模型(DLA) 3) diffusion-limited aggregation(DLA) model 扩散限制聚集(DLA)模型 4) diffusion limited aggregation(DLA) 扩散受限模型(DLA) 1. The observed phenomena verify that the crystal morphologies change from fractal to cube-shaped structure due to the initial concentration increasing,and ...
Diffusion-limited aggregation (DLA) is a model which represents noisy growth limited by diffusion. This process is quite common in nature and the simple algorithm gives a good representation of the large-scale structure of many natural objects. The clusters grown in the computer and the real ...
Here I report results of twenty seven in silico simulations for a diffusion limited aggregation model which accounts for much of the fractal structure previously observed in GPNs. Parameters varied in the model included (a) the frequency of gene duplication events, and the extent of (b) ...
We propose an extension of the diffusion-limited-aggregation model for fractal growth. In our model, the Poisson equation is statistically simulated through the use of diffusive particles generated everywhere outside the aggregate. We relate the model to our experiments on viscous fingering in a Hele...
18.Comparison between Ramsauer Model and Global Opotic Model;Ramsauer模型与球型光学模型的比较 相关短句/例句 diffu-sion-limited aggregation(DLA)扩散有限聚合模型(DLA) 3)diffusion limited aggregation(DLA) model有限扩散凝聚(DLA)模型 4)diffusion-limited aggregation(DLA) model扩散限制聚集(DLA)模型 5)diff...
Learn More: 我的博客DLA - Diffusion Limited Aggregation In a word, DLA即颗粒通过随机移动接触并粘附到现有固定颗粒而产生支化和珊瑚状的结构。 ###8.1.2 Real Life Experiments 在电沉积池中加入硫酸铜溶液, you can get results like the following images: ...
模拟结果与实际分形结构、分形维数相符,表明2MgO·B_2O_3生长是扩散控制凝聚过程. 互联网 Water tree of power cable is a fractal structure, which is attribute to diffusion - limited aggregation model. 推断电缆的水树具有分形结构, 属于有限扩散凝聚生长模型. 互联网 展开全部...