position-

Abstract—The proportional integral derivative (PID) controller is the most widely used control strategy in industry. The popularity of PID controllers can be attributed partly to their robust performance in a wide range of operating conditions and partly to their functional simplicity. This paper presents design of PID controller using Ziegler-Nichols (ZN) technique for higher order system. A Fuzzy logic controller using simple approach & smaller rule set is proposed. Simulation results are demonstrated. Performance analysis shows the effectiveness of the proposed Fuzzy logic controller as compared to the ZN tuned PID controller & fine tuned PID controller.

采用离散再合成的随机流动生成(DSRFG)方法合成了满足目标湍流度、积分尺度、脉动风速谱及空间相关性等参数的各向异性湍流;讨论了DSRFG方法在生成湍流风场上关键参数的合理取值;(Anisotropic turbulences satisfying the parameters of target turbulence, integral scale, pulsating wind speed spectrum and spatial correlation are synthesized by discrete resynthesis random flow generation (DSRFG) method. The key parameters of DSRFG method in generating turbulent wind field are discussed. Reasonable value;)

说明：  并联机器人standFord，其数值解及解析解，正解和逆解以及雅可比矩阵及动力学问题分析(Standford series robot, its numerical solution and analytical solution, positive solution and inverse solution, Jacobian matrix and dynamics analysis)

说明：  用于计算并联结构位置反解，最终得到各个驱动关节的参数(Inverse Position Solution for Calculating Parallel Mechanisms)

说明：  轴承故障数据，齿轮故障数据，转子故障数据(Bearing fault data, gear fault data, rotor fault data)

说明：  esmd算法，可用于很多领域，这是自己下载该改的程序(ESMD algorithm, can be used in many fields, this is their own download of the program to change)

两种涡旋光束的线性强度、强度密度和三维立体图，改变拓扑荷可以改变强度分布。(two kinds of vortex beam)

说明：  稀疏分解盲源分离，应用于轴承故障诊断，语音下处理(Sparse decomposition blind source separation, applied to bearing fault diagnosis, speech processing)

说明：  在matlab中将upfc应用到实际的电力系统中(In matlab, upfc was applied to the actual power system)

说明：  根据两点间的距离求经纬度，注意相应的计算元素的单位(Find the latitude and longitude based on the distance between two points)