hao123_080520

基于可编程跨导运算放大器POTA低通有源滤波器设计。该文给出了基于可编程跨导运算放大器(POTA)的有源滤波器设计方法，能在一定范围内实现跨导值程控调节, 提高调节精度和准确度。并且利用Jacobi 法求解相似对角形矩阵，避免解高次方程的难题。所设计的有源滤波电路不易受分布电容的影响，稳定性好、灵敏度低。本文给出了设计实例，显示了该方法的优点。-Based on programmable transconductance operational amplifier POTA low-pass active filter design. In this paper, based on the programmable transconductance amplifier (POTA) of the active filter design method that can realize in a certain range transconductance value of program-controlled adjustment, improve precision and accuracy regulation. Jacobi method and use a similar matrix of angular, high-equation solution to avoid problems. Designed active filter circuit less susceptible to the effects of distributed capacitance, good stability, low sensitivity. In this paper, design examples, showing the advantages of the method.

VC++请假管理小软件源码，适用于小单位或个人公司使用，基于ADO技术的数据库程序，数据库采用Access，可用来添加、删除、查询、修改请假记录，可分类别查询请假记录，比如查询已经批准的请假事项和未批准的记录。如果你是一个刚接触VC++数据库编程的新手，你可通过这个请假管理程序了解一下VC++ DAO方面的基础操作知识和DateGrid数据绑定方面的技巧。

经过不断发展，我国的“北斗一号”导航系统获得了巨大的社会经济效益，并且经过不断发展，为接下来的北斗二代导航定位系统积累的大量的经验(f navigation aids was born. These included radio beacons, vhf omnidirectional radios (VORs), long-range radio navigation (LORAN),)

说明：  springboot2.x整合权限框架shiro(springboot2.x shiro)

界面编程的演示，窗口背景的渐变演示实例。(Programming interface presentation, the window shows examples of the background gradient)

说明：  有关MIMO 天线选择对信道容量的影响，降序天线选择方法(As for the influence of MIMO antenna selection on channel capacity, a descending antenna selection method is proposed)

自动配色印花行业自动配色软件，一流技术水平，很方便(Automatic color matching software in automatic color matching printing industry, first-class technical level, very convenient)

二维平板热扩散的格子玻尔兹曼方法模拟的编程资料(Two dimensional plate thermal diffusion)

sqlexplorer。exe用于建立sql链接的辅助软件-sqlexplorer. exe for the establishment of the auxiliary software sql link

・AT80C2051用内部比较器作AD转换器，这里提供c源程序，以供参考。.. 开发工具：C, 提供者：dsf ・ x25045_c.rar, 2005-6-13, 2KB, 0 ... ・GBK拼音码表,包含全部的GBK-18030 汉字,用于需要输入冷僻汉字的场合... -AT80C2051 used for internal comparisons for the AD converter, c source provided here, for reference. .. Development tools : C, providers : DSF x25045_c.rar, 2005-6-13, 2KB, 0 ... GBK phonetic code table contains all the GBK- 18030 Chinese characters, the need for the importation of Chinese characters rarely occasions .. .