counter4b

发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。-Part of the launch phase-locked loop frequency synthesizer using technology, MC145152 and MC12022 PLL chips to lock in the exact carrier frequency 35MHz, the output carrier to achieve the stability of 4 × 10-5, reaching the accuracy of 3 × 10-5 by the varactor diode V149 and integration to achieve MC1648 chip VCO FM modulation on the carrier selection transistor amplifier at the end of class 2SC1970, to work in the C state to enlarge and improve the efficiency of the amplifier output power to meet the design requirements.

学习Nios的非常好的资料—复旦Nios教材，适合初学者学习使用(Learn the Nios very good information- Fudan Nios materials, suitable for beginners to learn to use)

awd bios文件的修改工具，用vc和vb制作-AWD bios document revision tool and vc production and vb

labwindow 编程的tcp网络开发例程。-labwindow programming routines tcp network development.

说明：  1、用户登录 1）寻物启事 1.失物挂号 2.失物挂号办理 2）失物招领 1.失物招领修改 2.失物招领列表 3）个人资料 1.个人资料 2、办理员登录(1. User login 1) Discovery Notice 1. Registration of Lost Property 2. Registration of Lost Property 2) Lost and Found 1. Lost and Found Recruitment Amendment 2. Lost and Found List 3) Personal data 1. Personal data 2. Register the clerk)

说明：  FLAC3D 岩土工程有限元软件学习。 此软件用于研究采矿工程，土木工程， 石油工程 岩石力学问题(FLAC3D Geotechnical Engineering Finite Element Software Learning. This software is used to study rock mechanics in mining engineering, civil engineering and petroleum engineering.)

地图编辑器 能对一半要求的地图编辑并且产生编码-Map Editor can request half of the map editor and generate code

用c++完成的双链表源代码-complete with the source code-List

一个简单的IE浏览器制作实例，基于C# webBrowser源码实现，界面和功能都挺简洁的，基于Windows的IE内核组件，这里只是简单的调用，设计了一个简单的界面，熟悉一下C#如何调用这个组件，功能方面实现网址输入、网页打印预览、后退、前进、刷新、查询等功能。

分析车桥耦合问题，研究刚度对车桥耦合振动的影响(Vihcle and bridge coupling based on Ansys apdl)