激子寿命

使用白塞尔方法进行大地主题解算，正算由大地线和大地方位角计算经纬度，反算有经纬度计算大地线长度和大地方位角(Using the white Searl method to solve the geodetic problem, we calculate the longitude and latitude by the geodesic and the earth azimuth, and calculate the geodesic length and the large local angle by calculating the longitude and latitude)

PD里面的4B5B编码，欢迎使用~~~~~~~~~~~~~~~~~(4B5B code in PD3.0 or USB3.0, welcome to use~~~~~~~~~~~~~~)

LMI 公司3D激光扫描仪gocator例程代码，很有参考价值，助你迅速掌握gocator的开发方法(C samples for gocator laser scanner)

西门子变频器t300说明书，分享给各位，希望能通过(The installation, connection and commissioning of the equipment and modules is not described here. These are provided in sufficient detail in the Instruction Manual of the equipment.)

为了感谢惠俊英老师的谆谆教诲，再为好奇诸君奉上水声物理--海洋传播声场模拟的一份武林秘籍--海洋传播声场抛物方程解算方法--RAM！ 当好奇诸君阅毕此卷，再对照轻松跑完作业，即入门 RAM！ RAM 与 AcousticsToolbox 遵照 GNU 公共许可证进行分发。感谢Michael D. Collins 对 RAM 的原创，也感谢由 Free Software 凝聚起来的自由科学家社区(In order to thank Professor Hui Junying for his teachings, and then offer you a secret book of underwater acoustic physics, ocean propagation sound field simulation, the parabolic equation solution method of ocean propagation sound field, RAM! When curious gentlemen read this volume, and then compared with easy running homework, that is, access to RAM! RAM and Acoustics Toolbox are distributed under the GNU Public License. Thanks to Michael D. Collins for his original RAM and to the Free Software community of free scientists.)

说明：  采用相场方法，计算纯物质枝晶生长，标记为相场模型C。(Dendrite growth of pure substance was calculated by phase field method, marked as phase field model C.)

基于Kubo公式，计算石墨烯的电导率和石墨烯的表面阻抗，包含两个独立文件(The conductivity and the surface impedance of graphene is calculated based on Kubo formula.)

恒压变频供水，实现供水的恒压变频，可以恒压供水，并且可以通过变频器节能(niceConstant voltage and frequency conversion water supply can realize constant voltage and frequency conversion of water supply, water supply can be constant pressure, and energy saving can be achieved through frequency converter.)

本人自编的另一个有限元软件，用来解决电磁声静电场问题。本是一个作业。经了不少心思。可以在程序内建模，加载荷，并求解，彩图显示结果。并输出模型文件，和结果文件。输出的结果文件可以再读入程序进行下一次的分析。(I directed another finite element software, used to solve electromagnetic acoustic electrostatic field problems. This is an operation. After a lot of efforts. The procedure modeling, load, and solving color pictures show results. Model and output documents, and the outcome document. The output of the document can be read into the process for the next analysis.)

说明：  利用netcd库 python语言读取nc气象文件(Using Python language of netcd library to read NC meteorological files)