shiliangkongzhijieo

本文講述了一個基於FAN4800 連續PFC 前端的雙管正激電源的功率級設計。回顧了這種電源的設計選擇。討論的實際課題包括功 率器件選型，電磁設計，佈局和電磁干擾 (EMI)，目的在於幫助工程師加速並改善其設計。(This article about a front-end based on the FAN4800 PFC consecutive two-transistor forward power stage power supply design. Review this power supply design options. The actual topics discussed include the selection of power devices, electromagnetic design, layout, and electromagnetic interference (EMI), designed to help engineers to speed up and improve its design.)

采用matlab编写的常微分方程的数值解法，有算例，以及改进龙格库塔方法。(The numerical solution of ordinary differential equation by using Matlab prepared, with examples, and the improvement of the Runge Kutta method.)

实现支持向量回归，能够实现小样本的回归预测分析(Regression analysis to realise the prediction base on small sample)

灰度 GM（1.1）模型：灰色系统其内部一部分信息已知，另一部分信息未知或不确定。对既含有已知信息又含有不确定信息的系统进行的预测，也就是对在一定范围内变化的、与时间序列有关的灰过程进行 预测。(Gray GM (1.1) model of grey system: the internal part of the information known, the other part of the information is unknown or uncertain. In which there are both known information and uncertain for the prediction information system, is also the process of gray change in a certain range, with the time series related to Prediction.)

麦克风指向性调试源码，可用于麦克风指向性测试，对声学研究有用(Debug source directional microphone, directional microphone can be used to test for acoustic research useful)

its simualation of dtc

Find the mel spectrum in voice recognition system

create a new Boolean object whose default value is the value of the boolean.

《實戰C++ — 八個別具特色的實作經驗》與目前市面㆖ 眾多C++ 書籍的最大不同，在於 本書既非基礎觀念之教㈻ 書籍，亦非開發工具之使用手冊，而是以「㆒ 章㆒ 專案」的方式， 從實際應用面引領讀者領略C++。 本書是《The Art of C++》的㆗ 文譯本。原作者Herbert Schildt 是㆒ 位㈻ ㈲ 專精、著作等身的 IT 技術作家，其作品普遍獲得良好評價。(err)

偏微分方程的数值解法的MATLAB程序介绍了应用最为广泛的椭圆型、双曲型、抛物型偏微分方程的数值解法，而且还详细编程实现了每种方程的多种常见数值解法。 附件使用MATLAB编程来实现这些算法。 (The numerical solution of partial differential equations of the MATLAB program, introduced the most widely used elliptic, hyperbolic, parabolic partial differential equations numerical solution, but also details of each program to achieve a variety of common numerical solution of equations. Attachments that use the MATLAB program to implement these algorithms.)