Rosenbrock函数

很经典的连连看源代码，与众生共享，大家可以随便下载。-Very classic Lianliankan source code, and all living creatures share, everyone can freely download.

说明：  经验模态分解，vmd分解非线性信号，可以把信号分解成有用的数据，然后进行分解(Empirical mode decomposition (EMD) and VMD can decompose nonlinear signals into useful data, and then decompose them)

如何修改文件日期访问、修改上次访问

说明：  用于新冠肺炎胸片扫描，来对新冠肺炎与普通肺炎进行区分(Used for chest scan of New Coronary Pneumonia to distinguish New Coronary Pneumonia from Common Pneumonia)

输局哭电饭锅发动股份电饭锅发动规划规范化股份的韩国发行股份规范化分工很过分-45ftdgfd

说明：  Trans_Magneti_template.doc

各向异性材料损伤准则，复合材料三维Hashin损伤准则(Anisotropic material damage criterion, the three-dimensional composite Hashin damage criterion)

使用矩阵位移法做平面杆件结构静力计算； 与龙驭球《结构力学》中介绍的方法一致，可帮助土木工程专业学习矩阵位移法时检验中间过程；(The matrix displacement method is used to calculate the static force of planar bar structure. Consistent with the method introduced in the "structural mechanics" of long chien ball, it can help civil engineering majors to learn the matrix displacement method to test the intermediate process.)

说明：  微电网保护问题与传统配电网保护有着极大的不同，典型表现在以下几个方面：a.微电网在并网运行和孤岛运行两种运行方式下，短路电流大小不同且差异很大。b.微电网中电源及相关负荷的接地方式对故障电流的大小影响也很大。c.加入分布式能源后，微电网的双向潮流特性对微电网保护的方向判别也有新的要求。d.发生故障时，微电网与配电网的不同隔离策略需要与微电网保护相结合，这也是微电网保护的关键。(The problem of microgrid protection is very different from that of traditional distribution network protection. Typical manifestations are as follows: a. The short-circuit current of microgrid varies greatly under the two operation modes of grid-connected operation and island operation. B. The grounding mode of power supply and related loads in microgrid also has a great influence on the magnitude of fault current. C. With the addition of distributed energy, the bidirectional power flow characteristics of microgrid also have new requirements for the direction discrimination of microgrid protection. D. When a fault occurs, different isolation strategies of microgrid and distribution network need to be combined with microgrid protection, which is also the key of microgrid protection.)

说明：  More files to upload to the server