chenggongxue

扩散系统之浓度分布的装置。管中储放静止液体B，高度为L=10 ㎝，放置于充满A 气体的 环境中。假设与B 液体接触面之浓度为3 C 0 0.01mol m A = ，且此浓度不随时间改变 而改变，即在操作时间内( h = 10天)维持定值。气体A 在液体B 中之扩散系数为 D m s AB = 2×10− 9 2 。试决定以下两种情况下，气体A溶于液体B中之流通量(flux)。 (a) A 与B 不发生反应； (b) A 与B 发生以下之反应 A+ B→C ， A A − r = kC 其反应速率常数k = 2×10− 7 s− 1。 (Diffusion system of concentration reference device shown in Figure 3. Tube in the store still liquid B, L = 10 cm height, placed in full A gas environment. Assuming the contact surface of the liquid with the B concentration of 3 C 0 0.01mol m A =, and this concentration does not change with time and change, that is, the operating time (h = 10 days) to maintain constant. Gas A in liquid B, the diffusion coefficient D ms AB = 2 × 10-9 2. Decided the following two test cases, the gas dissolved in liquid B in the A liquid (flux). (A) A and B do not react (b) A and B of the following reaction occurs A+ B → C, AA- r = kC, the reaction rate constant k = 2 × 10-7 s-1.)

it descibes about various matlab code

bullet through the wall

用一种算法 利用matlab语言来编写视频跟踪程序(An algorithm using matlab language used to write the video tracking program)

MATLAB编写，计算卫星运行轨道，显示星下点轨迹，适用范围较广。(Preparation of MATLAB, the calculation of satellite orbit, display a ground track, wide range of application.)

说明：  该程序是锁相环的MATLAB的简单实现程序，从中可以看到锁相环的基本功能的实现。(This program is a simple phase locked loop of MATLAB implement programs, from which you can see the basic function of phase-locked loop of implementation.)

Combined flood and wind damage scales

un fichier pour résoudre un système linéaire par matlab

matlab based description

SAR原始数据，对初学者很有用啊！特别是用matlab读取的很方便(SAR raw data, useful for beginners! Especially matlab read very convenient)