OP1177_2177_4177

系统介绍用mongdb编写python的注意事项及实例，以及mongdb编写的网络框架！(System Introduction written mongdb python precautions and examples, as well as networking framework mongdb prepared!)

对于学习信息论的各位朋友们帮助很大，精炼易懂(It is very helpful for those who study information theory,it is Refining and easy to understand. )

说明：  外弹道测量数据处理理论书籍pdf，很实用，内容全面对外场试验处理有指导作用(exterior ballistic data processing)

薛培峰用FVCOM模式模拟长江盐水入侵的案例，很不错，很经典(Xue Peifeng FVCOM simulated by salt water intrusion in the case of the Yangtze River, is very good, very classic)

数字信号处理 理论算法与实现 胡广书 第二版(Digital signal processing algorithms and implementation theory HU-book second edition)

Baker s book on analog PLL

ansys结构分析，线性静力、疲劳、断裂、复合材料、P-方法、梁分析(Ansys structural analysis, linear static, fatigue, fracture,, P- method, composite beams is analyzed)

Hassan K. Khalil的非线性系统第三版英文版、课后系统答案以及到2017年书中错误更正(Nonlinear Systems_Hassan K. Khalil_3rd_2002, Solutions Manual and errata)

congex的机器视觉的培训教程～，挺不错的 (congex the Machine Vision Training Guide ~, quite good)

最近 LCC 谐振变换器备受关注，因为它优于常规串联谐振变换器和并联谐振变换器：在负载和输入变化较大时，频率变化仍很小，且全负载范围内切换可实现零电压转换（ZVS）。本文介绍了LLC型谐振变换器的分析方法，回顾了LLC型谐振变换器的实际设计要素。其中包括设计变压器和选择元器件。采用一设计实例，逐步说明设计流程，有助于工程师更加轻松地设计LLC谐振器。(Recently LCC resonant converter has attracted much attention, because it is better than that of the conventional series resonant converter and parallel resonant converter in the load and input change, frequency change is still very small, and the whole range of the load switch can realize zero voltage switching (ZVS). In this paper, the analysis method of LLC resonant converter is introduced, and the practical design elements of LLC resonant converter are reviewed. Including the design of transformers and components. A design example is used to explain the design process step by step, which is helpful for engineers to design LLC resonators more easily.)