OCAOCP-Oracle-Database-11g-AllinOne-Exam-Guide

gson2.2.2的3个jar包，需要的可以下载(gson2.2.2 of 3 jar package, need to be downloaded)

执行机构采用飞轮控制的卫星姿态控制系统仿真(attitude control system simulation of wheel controlled satellite )

matlab数学应用，实用的东东，嗯嗯，希望对大家有用(matlab mathematical applications, practical stuff, huh)

自己编写的基于惯性权重线性递减策略的粒子群算法优化聚类(My own particle swarm optimization algorithm based on the linear decreasing inertia weight strategy applied to cluster.)

DistMesh giving a singular FEM matrix?(Hi Anyone here with some experience of using DistMesh in finite element code? I m solving the scalar Helmoltz equation in an annular region in 2D: rho_1 < rho < rho_2 where rho_1 is the radius of a Perfect Electric Conducting cylinder and rho_2 is where the mesh is truncated using an Absorbing Boundary condition. Now, I ve written code to mesh the region myself (by dividing the region into annular rings and picking a fixed number of points on each ring) and I ve written another program which uses DistMesh to mesh the region. I get a nice solution using my own meshing code but the FEM matrix becomes singular when I use DistMesh. This is the DistMesh Code I used: Circle with hole rABC=1.5 rCyl=0.5 fdstring=sprintf( ddiff(dcircle(p,0,0, f),dcircle(p,0,0, f)) ,rABC,rCyl) fd=inline(fdstring, p ) box=[-2,-2 2,2] [p,N]=distmesh2d(fd,@huniform,0.04,box,[]) I tried changing box and the 0.04 value (initial edge length). But every time, the matrix becomes sin)

the second format for the inverter

本代码通过对基因库中人类和家牛基因编码部分的对比和统计,分析了不同属生物间的基因遗传的异同和特性(This part of the code by comparing the gene encoding the human and cattle library chain genes were compared and statistics, and then to analyze the similarities and differences between different genera of biological and genetic characteristics of genetic)

该程序主要是比较对信号分别进行希尔伯特变换HT和广义希尔伯特变换GHT所得到瞬时相位的比较，结果证明GHT较HT对信号有较好抗噪特性，同时瞬时相位也可以用来重构信号，但主要起了指示的作用。(We can get instantaneous phase of the signal by HT or GHT，and the results prove that GHT has better noiseproof feature,namely robustness than HT.In the meantime,we could restruct signal using the information of instantaneous phase,but it mainly has good directives roles.)

利用Matlab进行卫星通信多普勒频偏仿真(Using Matlab to satellite communications doppler frequency simulation)

声学物理特性，主被动声纳或基阵的信号处理 (Acoustic physical characteristics, or the array of active and passive sonar signal processing)