kanaiearthquake

说明：  模块化多电平换流器(modular multilevelconverter MMC)已成为柔性直流输电系统的首选换流器拓扑。我国已建成的上海南汇柔性直流工程、南澳三端柔性直流工程、舟山五端柔性直流输电工程以及正在建设中的厦门柔性直流工程都采用MMC结构。国际上SIEMENS已建成的美国跨湾工程(Trans Bay Cable Project TBC)和法国一西班牙联网工程(INELFE工程))都采用MMC结构。同时，ABB公司提出了一种级联两电平结构(cascaded two level CTL)，其本质仍为MMC，并且ABB后续建设的数项柔性直流工程都采用CTL结构。因此，MMC已由最初的低压、小容量示范工程向高电压、大容量方向快速发展，展现出很好的发展前景。(Modular multilevel converter (MMC) was first proposed and patented by Professor R. Marquardt in 2001. It consists of several sub modules (SM) with the same structure. The sub module structure can be divided into three types: half H-bridge, full H-bridge and double clamp sub module. Modular multilevel converter (MMC) has shown a very important engineering application prospect.)

爬取热门微博评论并进行数据分析、nlp情感分析 xuenlp.py功能包含： 读取数据库并进行数据去重 对微博评论进行情感分析并生成统计结果 统计微博评论中的表情排行 统计微博评论中的粉丝排行前20(Crawl popular microblog comments and do data analysis and NLP sentiment analysis Xuenlp.py functions include: Read the database and de-duplicate the data Emotional analysis of microblog comments and generating statistical results Statistical expression ranking in microblog comments Statistics of the top 20 fans in microblog comments)

说明：  kuramoto模型 同步 复杂网络中Kuramoto振子的同步(Synchronization of kuramoto Model synchronization of Kuramoto Oscillators in complex Networks)

用来在fdtd solutions软件上计算brdf函数值(Used to calculate BRDF function values on FDTD solutions software.)

基于FFT的快速SAR分布目标回波模拟算法. 大面积分布目标的合成孔径雷达(SAR)回波模拟需要大量的运算，文中提出了一种合成孔径雷达回波模拟的快速算法，算法利用时域插值和FFTl’来缩减运算量，对于大面积目标回波模拟时，该算法有很高的效率。文中详细分析sinc函数插值所带来的误差以及补偿方法，并在次基础上提出了一种利用增采样插值方法，该方法以增加少量运算为代价，使得模拟精度的大幅度提高。文中比较了传统方法和基于FFTl’的快速SAR分布目标回波模拟算法的模拟结果，证明了这种快速算法确实行之有效。(The simulation of distributed targets is very important to the design of synthetic aperture radar(SAR)sys- tems．Since the end product is SAR images，the echo of SAR signals needs to be simulated and then processed form SAR images，an d the parameters needs to be measured and the perform ance of the images should be，an d then evaluated．The designing parameters of SAR could be adjusted to meet the requirement of users before developing SAR systems，specially in space—bome SAR systems．Th e simulation data is also needed during the developing an d debugging of a space—borne SAR real—time processor．Another purpose of simulation is to supply a great deal of simulation imag es to train image usors of space—bo rne SAR before it launch．)

OPNET仿真实验，做了很久才积累下来的-OPNET

说明：  STM32F103 蓝牙HC-05通讯程序亲测可用(STM32F103 Bluetooth HC-05 communication program is available for personal testing)

说明：  C#小程序仅供参考，学习使用 ，内容丰富(C# small program for reference only, learning and use, rich in content)

线索二叉搜索树结点的插入删除以及树的打印。-clues two forks search tree node of the tree to insert, delete and print.

说明：  基于韦伯能量法计算齿轮时变啮合刚度，具有很高的实用性(time-varying stiffness)