abaqus脚本快速建立单层空间网壳结构

一本关于间断有限元的入门书籍。书中有些matlab程序供学习者参考。(An entry on the discontinuous finite element books. Some matlab program book for learners to reference.)

求解NS方程的各种rans方法及直接数值模拟方法介绍 很好的PPT(A very good solver introduction of the ns equation，rans method, dns.)

直驱风机建模，对发电机、风机、变流环节、控制等各个方面建模，但是只是模块，由于没有时间就未合在一起运行。(Modeling of direct fan)

在FPGA上实现CAN总线SPI接口通信，使用Verilog语言(Realize SPI interface communication of CAN bus on FPGA, using Verilog language)

说明：  旅行商问题(TravelingSalesmanProblem，TSP)是一个经典的组合优化问题。经典的TSP可以描述为：一个商品推销员要去若干个城市推销商品，该推销员从一个城市出发，需要经过所有城市后，回到出发地。应如何选择行进路线，以使总的行程最短。从图论的角度来看，该问题实质是在一个带权完全无向图中，找一个权值最小的Hamilton回路。由于该问题的可行解是所有顶点的全排列，随着顶点数的增加，会产生组合爆炸，它是一个NP完全问题。(Traveling Salesman Problem (TSP) is a classic combinatorial optimization problem. The classic TSP can be described as: a merchandiser sells goods to several cities. The salesman starts from a city and needs to go through all the cities and return to the starting point. How to choose the route of travel so that the total journey is the shortest. From the point of view of graph theory, the essence of the problem is to find a Hamilton loop with the smallest weight in a completely undirected graph with weights. Since the feasible solution to this problem is the full permutation of all vertices, as the number of vertices increases, a combinatorial explosion occurs, which is an NP-complete problem.)

雷达单脉冲测角，通过和差波束比幅测出目标所在平面方位角度(estimate the angle of moving target)

做射线追踪的程序，做起伏地表和单层反射界面的-doing ray tracing procedures, and so undulating surface reflectance single interface

自己写的垃圾清理器，喜欢的用吧，清理垃圾帧的不错-himself wrote for the refuse removal, like it used to clean up the garbage pretty good frame

Knuth不僅僅是傑出的programmer，同時也是世界聞名的數學家和演算法的專家。他的經典巨著The Art of Computer Programming裡頭寫的是他畢生研究演算法和程式設計的精華(Knuth is not only an outstanding programmer, but also world-renowned mathematicians and experts algorithm. His classic masterpiece, The Art of Computer Programming is written inside his life-long study of algorithms and the essence of programming)

This is an SDK for nRF51822 Bluetooth module, it use for programming in Keil IDE.