AWK-Manual

说明：  HERSCHEL-BULKLEY模型，用于fluent仿真软件中添加udf使用，限定了剪切速率等关键参考条件(HERSCHEL-BULKLEY model is used to add UDF to fluent simulation software, which limits the critical reference conditions such as shear rate.)

frf频响函数求解，simulink仿真(frequency response function)

mbot，scratch程序案例，可以用来学习mbot控制。(Mbot, scratch program case, can be used to learn mBot control.)

说明：  北京大学地球物理反演课程的一些资料，很有用，讲一些地球物理反演的理论和方法(Geophysical inversion)

InSAR是一种极具潜力的新型空间大地测量方法，但它也有其固有的限制，特别是受到大气层延迟（对流层延迟、电离层延迟等）、卫星轨道误差、地表状况和时变去相关性等影响，很容易导致InSAR图像解释错误，而InSAR数据本身无法解决所存在的上述问题。而GPS可以精密定位，可以较为精确地确定电离层、对流层参数，是当前应用最广泛的一种空间大地测量手段。-InSAR is a potential new space geodetic methods, but it also has its inherent limitations. in particular by the delay in the atmosphere (troposphere delay, ionospheric delay, etc.), satellite orbit errors, Surface conditions and time-varying correlation to the impact of such very easily lead to wrong interpretation of InSAR image, InSAR data and by itself can not solve the above problems. GPS precision positioning can be more accurately determine the ionosphere, troposphere parameters, is the most widely used as a means of space geodesy.

C++程序设计源代码例-C programming source code cases

本文档主要针对UCOS多任务实时系统的初始化与配置。(The initialization and configuration of a multitask real-time system.)

说明：  计算多层媒质的反射和透射系数，输入是多层媒质的层数、每层的厚度、每层的介电常数和磁导率，输出是最外层的反射系数(The input is the number of layers, the thickness of each layer, the permittivity and permeability of each layer, and the output is the reflection coefficient of the outermost layer)

computer networks larrypeterson

说明：  实现一个模仿CAD画图的简单程序，直线，椭圆，矩形等(Implement a simple program to imitate CAD drawing, such as line, ellipse, rectangle, etc.)