nonliner_fz

基于随机共振的弱信号检测，sr为龙格库塔方法解方程，rs为检测的主程序(Based on stochastic resonance in weak signal detection, sr for the Runge-Kutta method to solve the equation, rs for the detection of the main program)

辛普森二维积分的数值计算方法,运用c++程序进行编写 (numberical analysis)

FIR滤波器的设计——使用Matlab和CCS(FIR filter design- using Matlab and CCS)

粒子群优化算法 可以进行选择及时跳出局部限制寻找最优点(PSO algorithm can be selected in time to find the most benefits out of local restrictions)

岩石物理流体替代,使用低频的Gassmann方程，将含流体岩石转换为其它含流体岩石(rock physics fluid substitution，using the Gassmann rock physics model ,change the saturated rock with one fluid to another fluid)

利用PLSI算法自动对一个文档集进行聚类，需要调节聚类的维度K值，从而得到最大的likelihood(PLSI automatically using an algorithm for clustering document set needs to be adjusted to the dimension value of K clusters, to obtain the maximum likelihood)

复杂网络的介数求解，复杂网络，介数，matlab (Betweenness solving of complex networks, complex networks, the number of referrals, matlab)

说明：  风电厂模型，供pmsg与dfig风机搭建的思路参考(Wind power plant model, for reference of pmsg and dfig wind turbine construction ideas)

在matlab下制作图形用户界面。本例为一归一化二阶系统，制作一个能绘制该系统单位阶跃响应的图形用户界面。(Produced under the matlab graphical user interface. In this case a normalized second-order system, can produce a drawing of the system unit step response of the graphical user interface.)

This paper presents a novel algorithm of hiding secret messages by applying mathematical lemmas and information theory. The proposed algorithm can hide more information with acceptable embedded rate and achieves requirements of information hiding algorithm and simply information extracting. The main idea is applying modern algebra to solve the information hiding problem in multimedia. In order to prevent some attacks on stganography, hidden initial bits of image data pixels are chosen randomly. The extracted information are achieved without the reference of the original image and extracted keys. The experiment results show that our approach is effective and reliable.