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In many areas of commerce, government, academia, and hospitals, large collections of digital images are being created. Many of these collections are the product of digitizing existing collections of analogue photographs, diagrams, drawings, paintings, and prints. Usually, the only way of searching these collections was by keyword indexing, or simply by browsing. Digital images databases however, open the way to content-based searching. In this paper we survey some technical aspects of current content-based image retrieval systems.

说明：  蓝桥杯第五届初赛赛题，温度采集与控制，除了基础的数码管显示、继电器和蜂鸣器的控制、LED灯的控制以外，难度增加的部分体现在需要使用矩阵键盘，以及DS18B20的调用。(In the 5th preliminary competition of Blue Bridge Cup, besides the basic digital tube display, the control of relays and buzzers, and the control of LED lights, the increasing difficulty is reflected in the need to use matrix keyboard and the call of DS18B20.)

说明：  以二阶非线性系统为例，假设系统方程和状态方程含有高斯白噪声，通过EKF、CKF、UKF算法估计系统真实状态，并对比(Taking the second-order nonlinear system as an example, assuming that the system equation and state equation contain Gaussian white noise, EKF, CKF, UKF algorithms are used to estimate the real state of the system.)

使用VC实现的 连连看 所有源代码以及资源文件(Implemented using VC Lianliankan all source code and resource files)

说明：  mann-kendall时间序列趋势检验程序，吐血推荐，只须修改起事时间(mann-kendall time series trend test procedures, hematemesis recommendation, only to amend the time rise in rebellion)

说明：  该仿真模型是基于PSCAD平台建模的，可以判断3机9节点系统的暂态稳定性(This is the model of 3 generator 9 bus system, which can be used to analysis the transient stability of system.)

用jpanel和jframe类搭建房屋，用paint类绘制各种图案和装饰。(Building a house with JPanel and JFrame)

this program change title of menu of windows

记录每天的明细收支出，附带课程表编辑-detailed daily record of the payments out, fringe curriculum editor

Flash毛笔写字动画，可扩展为钢笔、铅笔写字，圆珠笔写字动画，氏量配合图片实现，运用了Flash中的遮罩技术。