This thesis degree project intended to study the use of the Crystal fetfin. The image simulation of the Crystal fetfin model predicts the probability of a bad image. The program is used by MATLAB in the simulation, which is how the simulation from simulation of diffusion equation in one dimension, and the first two dimensions, which reasonably diffusion equation is an equation similar to substitute the fetfin Crystal, but with less complexity and thus suitable as flooring.Base to start the simulation, simulation, which simulate Crystal fetfin and it requires three types of theory and technique. One category is a mathematical theory which includes: How to-yut, math Java method pakhetran เรียย์ส method code Fu Rugby in the second category is the MATLAB programming and third categories is to analyze the data using various methods, such as creating the graph. The chart icon tour, after solving the equation of diffusion, it is necessary to try to fetfin Crystal, which makes studying in two different formats: To observe the occurrence of phase in the phase and the chart image simulation. Note that the occurrence of the phase by changing temperature and average of the probability to find the atoms until the birth phase by phase chart. Best image simulation testing is enter in force and direction form, cause material damage occurred in various directions, in order to study and analyze the structure of the material.
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