fractal

说明：  MATLAB使用欧拉Euler法求解微分方程组 源程序代码(SOURCE PROGRAM CODE OF DIFFERENTIAL EQUATIONS SOURCE SOLUTION USING EULER METHOD IN MATLAB)

根据传热理论, 建立了大功率发光二极管的有限元模型. 选择了4 种键合材料( 高导热导电 银胶、纳米银焊膏, 大功率芯片键合胶、Sn70Pb30) , 4 种基板材料( Al2O3、A lN、A-l SiC、铜钼合金) . 采用ANSYS 有限元热分析软件进行了温度场仿真, 得到了大功率发光二极管封装材料的最优选 择. 研究了基板厚度、芯片输出功率及外接热沉时对发光二极管结温的影响.(Heat transfer theory, the finite element model of the high-power light-emitting diode. Choose four kinds of bonding material (high thermal conductive silver glue, nano-silver paste, high-power chip bonding glue Sn70Pb30) substrate material ( Al2O3, A lN, Al SiC, copper molybdenum alloy). temperature field simulation using ANSYS finite element thermal analysis software, the optimal choice of high-power light-emitting diode packaging materials. substrate thickness, chip output power and external heat Shen light-emitting diode junction temperature.)

fluent udf 壁面热流通量随时间的变化。 调用fluent udf 里面的宏运算。(fluent udf wall heat flux changes with time. Call fluent udf inside the macro operator.)

基因的FFT变换，可以快速得出外显子的位置(Transform FFT of the gene can be quickly drawn to the location of exon)

四分之一圆柱贴体网格的生成，可以调节大小(Fourth cylindrical body-fitted grid generation, you can adjust the size of the)

数据归一化处理，对数据进行一个标准化处理，将各个不同单位的变量，转换成无量纲的量(Data normalization, a standardization of data processing, will be different units of variables, into dimensionless quantities)

用流体计算李指数的。是用excel中的vba做的小程序。(calculated the lyapunov exponent)

F-K域偏移法和相移法偏移程序（C语言）(FK domain migration method and the phase- shift method migration program (C language))

使用车轨空间耦合系统计算出的60km/h的轮轨力时程数据(Wheel-rail force of speed 60km/h )

金属表面反射模型算法，用于计算不同金属的偏振反射参数。(Metal surface reflectance model algorithm used to calculate the different metal polarized reflectance parameters.)