turbulence-model-in-CFD

组合数学，又称为离散数学，但有时人们也把组合数学和图论加在一起算成是离散数学。组合数学是计算机出现以后迅速发展起来的一门数学分支。计算机科学就是算法的科学，而计算机所处理的对象是离散的数据，所以离散对象的处理就成了计算机科学的核心，而研究离散对象的科学恰恰就是组合数学。组合数学的发展改变了传统数学中分析和代数占统治地位的局面(Combinatorial mathematics, also known as discrete math, but sometimes people put combinatorial mathematics and graph theory together are counted as discrete mathematics. Combinatorial mathematics are beyond the rapid development of computers with a branch of mathematics. Computer Science is the scientific method, and computer objects are handled by discrete data, so deal with discrete objects has become the core of computer science, and the study of discrete objects is precisely the combination of science and math. The development of combinatorial mathematics has changed the traditional analysis of math and algebra dominant situation)

logistics分岔图，可观察到倍周期分叉的现象(logistics bifurcation diagram)

说明：  1997年landsat tm全波段遥感数据part02，部分参数： GROUP = L1_METADATA_FILE GROUP = METADATA_FILE_INFO ORIGIN = "Image courtesy of the U.S. Geological Survey" REQUEST_ID = "0601411252739_00046" LANDSAT_SCENE_ID = "LT51230331997191HAJ00" FILE_DATE = 2014-11-28T07:45:51Z STATION_ID = "HAJ" PROCESSING_SOFTWARE_VERSION = "LPGS_12.5.0" DATA_CATEGORY = "NOMINAL" END_GROUP = METADATA_FILE_INFO GROUP = PRODUCT_METADATA DATA_TYPE = "L1G" DATA_TYPE_L0RP = "TMR_L0RP" OUTPUT_FORMAT = "GEOTIFF" EPHEMERIS_TYPE = "PREDICTIVE" SPACECRAFT_ID = "LANDSAT_5" SENSOR_ID = "TM" SENSOR_MODE = "SAM" WRS_PATH = 123 WRS_ROW = 033(1997 landsat tm remote sensing data part02)

使用vb实现ping命令，可ping指定IP并返回结果(Vb realize the use of ping command, can ping the specified IP and return results)

使用ogr进行intersect空间运算，结果导出excel(ogr intersect c++ gdal excel)

A model object containing contact data.

unix 环境下 用socket进行网络编程(unix socket)

arcgis 基础编程实例,对GIS人员帮助很大(the basis of programming arcgis example, the GIS staff is very helpful)

TPI(地形位置指数)用于提取地形派生物的工具，加载到ArcGis中！(TPI (terrain location index) tool for extracting terrain derivatives, loaded into the ArcGis!)

Example code with images for assessment of SAR images using image registration and feature based techniques