Berkey db的一些使用帮助文件，是一种文件数据库

《OSEK/VDX汽车电子嵌入式软件编程技术》中光盘的资料，一些汽车控制器ECU的操作系统源代码和资料。-"OSEK/VDX automotive electronics embedded software programming technology," the CD, some car controller ECU operating system source code and information.

该源代码为图形或图象的代码。利用C++实现-the source code for graphics or image code. C to achieve

一个很不错的VB学习资料，希望对您能有帮助-a very good learning VB information, and I hope to be able to help you

自动控制学报 好象是昆明大学出版的 对于在学校的大学生很有用-Journal of Automation, Kunming University Press seems to be at the School of the University Students for useful

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组播以其独特的优势，在网络通信方面的应用越来越广泛，但随之而来的就是安全问题，其中密钥管理是最基本的问题之一。本文研究了安全组播中的密钥管理问题。介绍了现有的两种主要解决方案，即SKDC方案和密钥树管理方案，并分析了它们的不足之处，指出基于密钥树的研究方向，在此基础上提出基于Huffman密钥分级树的密钥管理方案，将布尔函数的分析方法运用其中使管理简便化。并对该方案的性能从密钥管理的存储空间和密钥刷新通信量两个方面，给出了相应的分析。-Multicast With its unique advantages in the communication network is widely applied, but the attendant security issues, key management is the most basic one of the problems. This paper studies the security Multicast key management issues. Of the two main existing solutions, and key programs SKDC tree management program analysis of their deficiencies, that the tree on the key directions of research on this basis based on the classification tree Huffman key Key Management Program, Boolean function of the analytical method which enable the use of simple. Program and the performance of key management from the storage space and traffic Key set two, given the corresponding analysis.

讲述了压力传感的基本使用规则，技术参数，性能指标-Pressure sensor on the basic use of rules, technical parameters, performance indicators

simulink的入门教程，老师上课讲的课件，较易懂，适用于初学者-simulink introductory tutorial, the teacher talked about class courseware, more easy to understand for beginners

不知是错，于是我一错再错；知道是错，可是我不知所措；明知是错，却还要错上加错；-not know it is wrong, so I repeat the same mistakes; Know it is wrong, but I am perplexed; They knew it was wrong, but also mistakes;

h.263英文协议 详细介绍了h.263协议-English H.263 agreement detailed agreement on the H.263