fractal

sql book and it is used to learn database managment system

光伏单元输出特性 本模型使用的是simulink搭建，极好的显示了光伏单元电压电流和电压功率的输出特性，为mppt最大功率追踪奠定基础。(Output characteristics of photovoltaic cells)

Pocket 1945 is a classic shooter inspired by the classic 1942 game. The game is written in C# targeting the .NET Compact Framework. This article is my first submission to Code Project and is my contribution to ongoing .NET CF competition.

ASTUTE BUNDLE FOR DESIGNERS

说明：  通过电导增量法实现光伏MPPT控制，改变光照强度可以看出最大功率输出改变。(The photovoltaic MPPT control is realized by the conductance increment method, and the maximum power output change can be seen by changing the illumination intensity.)

信号的抽样和恢复，若 是带限信号，带宽为 , 经采样后的频谱 就是将 的频谱 在频率轴上以采样频率 为间隔进行周期延拓。因此，当 时，不会发生频率混叠；而当 < 时将发生频率混叠。(The signal sampling and recovery)

本题编写程序模拟人进行连连看游戏，电脑模拟人玩连连看的过程如下： 1、分析本局游戏，将本局游戏转化成一个二位数组。0表示空白区域，数字表示该游戏牌为出现在游戏中的第几类游戏牌。 2、利用广度优先搜索算法，判断两个游戏牌是否可以消除。 3、程序模拟人点击可以消除的一对游戏牌进行消除。 对某局游戏转化成二维数组如下： 0 0 0 0 0 0 1 2 0 0 0 0 3 4 0 0 0 0 1 0 输入二位数组的行、列，二位数组、起始元素的的坐标、终止元素的坐标，判断起始游戏牌和终止游戏牌是否可以消除。 对上例输入 4 5 0 0 0 0 0 0 1 2 0 0 0 0 3 4 0 0 0 0 1 0 1 1 3 3 输出 TRUE(The writing program simulates the game, and the computer simulates the process of watching the game as follows: 1. Analyze the game and convert the game into a two - bit array. 0 is the blank area, the number indicates that the game card is the number of game cards that appear in the game. 2. Use the breadth first search algorithm to judge whether the two game cards can be eliminated. 3, the program simulates a pair of game cards that can be eliminated by clicking. A game of a game is transformed into a two-dimensional array as follows: 00000 01200 00340 00010 Input the row and column of the two bit array, the coordinates of two bit array, the initial element, and the coordinates of the termination elements, so as to determine whether the initial game card and the ending game card can be eliminated. For example input 45 0000001200 0034000010 11 33 Output TRUE)

精美系统图标-Fine system icon

说明：  模拟入射平面波经过金属纳米粒子线性各向同性下的电磁场分布(Simulated electromagnetic field distribution of incident plane wave passing through metal nanoparticles under linear isotropy)

LABVIEW实现交通灯控制(traffic light using labview language)