Fatigue-damage-crack-growth

This is a udf file of phi_alpha turbulence model of university of manchester for running if Ansys FLUENT. This model is based on v2f turbulence model.

说明：  basic english sentence patterns

数控编程基础入门课件（本人非编程人员，但真心恳求得到一个下载个数）(NC Programming Courseware entry)

现代通信系统要求通信距离远、通信容量大、传输质量好。作为其关键技术之一的调制解调技术一直是人们研究的一 个重要方向。讨论和仿真实现了基于FPGA的数字化DPSK调制解调系统。用Altera公司的FPGA开发平台Quartus II 3.0实现了一 个对基带信号的DPSK调制解调系统模型的仿真。(Modern communication systems require communication distance, communication capacity, transmission quality. As part of its one of the key technologies of modem technology is that people have been an important direction of research. Discussion and simulation of FPGA-based digital DPSK modulation and demodulation system. FPGA using Altera)

说明：  Excel VBA 编程入门的简单介绍。初学者可以看看。(Excel VBA Programming Introduction to the brief introduction. Beginners can take a look.)

说明：  马尔可夫模型，很详细的介绍，通俗易懂，适合初学者(Markov model, very detailed, easily understood, for beginners)

子类方法不可比父类方法抛出更多的例外。子类抛出的例外或者与父类抛出的例外一致，或者是父类抛出例外的子类型。或者子类型不抛出例外。(Class methods are not comparable to the parent class method throws more exceptions. The subclass thrown exception or thrown with the parent class exceptions, or the parent class throw exception sub type. Do not throw exceptions or sub type. )

python网络数据采集 高清pdf 特别推荐这本书，通俗易懂，作者讲的非常详细(Python Network Data Acquisition high-definition pdf)

说明：  《IEC61850应用入门》是一本帮助读者理解、掌握IEC61850知识内容和思想精髓的参考书。全书共分五章：第一章简单介绍常规变电站自动化系统的不足，主要介绍了IEC61850标准的内容、特点和发展趋势；第二章介绍面向对象的基本概念，OSI、TCP/IP网络模型，以太网技术基础，XML、XMLSchema基础和常用软件工具；第三章介绍IEC61850的分层信息模型、具体定义、配置方式与配置文件；第四章主要介绍MMS基础知识、IEC61850与MMS的映射关系、MMS与ASN.1编解码和MMS典型报文分析；第五章介绍GOOSE服务、IEC61850—9—2SV服务、简单网络时间协议和IEEE1("Introduction to IEC61850 application" is a reference book to help readers understand and master the knowledge content and ideological essence of IEC61850. The whole book is divided into five chapters: the first chapter briefly introduces the shortcomings of conventional substation automation system, mainly introduces the content, characteristics and development trend of IEC61850 standard; the second chapter introduces the basic concept of object-oriented, OSI, TCP / IP network model, Ethernet technology foundation, XML, XML schema foundation and common software tools; the third chapter introduces the layered information model and specific definition of IEC61850 , configuration mode and configuration file; Chapter 4 mainly introduces MMS basic knowledge, mapping relationship between IEC61850 and MMS, MMS and ASN. 1 encoding and decoding and MMS typical message analysis; Chapter 5 introduces goose service, iec61850-9-2sv service, simple network time protocol and ieee1)

说明：  包括Hypermesh的使用教程和基本案例，用于有限元的网格划分，尤其是广泛使用的非线性有限元软件Abaqus。(Including Hypermesh tutorials and basic cases, used for finite element meshing, especially the widely used nonlinear finite element software Abaqus.)