GS1_DataMatrix_Introduction_and_technical_overvie

一位学术界大师写的PPT，如何写出世界级的好paper(how to write a world class paper)

协作通信系统中DF协议下的系统仿真，可以实现中断概率的分析。(DF protocol system simulation, collaborative communications system outage probability analysis.)

北京大学地球物理反演课程的一些资料，很有用，讲一些地球物理反演的理论和方法(Geophysical inversion)

一些常见放大电路,主要是常用芯片的各种设计连接(Some common amplifier is mainly used to connect chip design)

说明：  《小白学SAS》配套材料适读人群 ：SAS用户，统计、数据分析领域的相关工作人员(sas course, Readable population: SAS users, relevant staff in the field of statistics and data analysis)

说明：  《Python+Cookbook》第三版中文(Python Cookbook V3.0)

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.)

说明：  采用Laser - PVDF 实验系统对纳米AlP/ SiO2 中激光超声信号进行采集. 利用小波的多尺度分解、重 构和消噪功能,提取出直达波及其反射回波,测量了时间间隔和纳米AlP/ SiO2 的纵波声速. 结果证明小波变换 的方法能有效地处理复杂激光超声信号.(Using Laser- PVDF experimental system of nano-AlP/SiO2 Laser ultrasonic signal acquisition. Using wavelet multiscale decomposition, reconstruction and de-noising function, extracted from direct wave and its reflection echo measured time interval and nano-AlP/SiO2 of the longitudinal wave speed of sound. wavelet transform results show that the method can effectively deal with the complexity of laser ultrasonic signals.)

详细讲解了PCA故障处理中的T2统计量的推导过程(The derivation of T2 statistics in PCA fault handling is explained in detail.)

计算机图形学 清华大学出版社 PDF格式(Computer graphics books in PDF format, Tsinghua University Press)