newmark

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.)

自己编写的一维搜索优化算法，包括黄金分割法、平分发、牛顿迭代法、抛物线法、三次插值法(I have written a one-dimensional search optimization algorithms, including the golden section method, flat distribution, Newton iteration, parabolic, cubic interpolation)

MATLAB程序实现日历的一个小程序。希望感兴趣的朋友可以看下。(MATLAB program to achieve a small calendar program. Hope interested friends can look.)

说明：  基于最大信噪比的盲源分离算法，源信号为混沌信号。(Based on the maximum signal to noise ratio Blind source separation algorithm, the source signal for the chaotic signal.)

椭圆图线拟合，输入x y，可拟合出椭圆图线(tuoyuantuxiannihe)

三次样条插值算法，能够实现数据的分段插值，拟合精度较高，曲线也比较光滑(Cubic spline interpolation algorithm to achieve the piecewise interpolation of the data, the fitting accuracy is higher, the curve is relatively smooth)

用于模拟通信系统中不同统计信道场景下的服从不同分布的噪声。(Communication systems used to simulate different scenarios of statistical channel obey different distributions of noise.)

rectifier model in hvdc converter circuit

使用Matlab实现的关于主分量分析PCA的方法的案例，可先实现仿真(Matlab achieved using principal component analysis PCA on the case method, the simulation can be achieved)

修改的卡尔曼滤波程序，适用于AIS航迹滤波，和雷达的航迹关联(Modified Kalman filtering procedures applied to AIS track filtering, and radar track association)