fluent python

属于数学建模课件。对初学者了解数学有一定的帮助。(Belongs to mathematical modeling courseware. For beginners, there is a certain understanding of math help.)

J1939 中英文协议 英文的很全 中文的也很详细 分享给大家(J1939 protocol in English)

MARK点相关设计规范，非常实用的印制电路板设计文章(Points related to design specifications MARK, very useful article, printed circuit board design)

本书是由c语言的设计者brian w. kernighan和dennis m. ritchie编写的一部介绍标准c语言及其程序设计方法的权威性经典著作。全面、系统地讲述了c语言的各个特性及程序设计的基本方法，包括基本概念、类型和表达式、控制流、函数与程序结构、指针与数组、结构、输入与输出、unix系统接口、标准库等内容。 　　本书的讲述深入浅出，配合典型例证，通俗易懂，实用性强，适合作为大专院校计算机专业或非计算机专业的c语言教材，也可以作为从事计算机相关软硬件开发的技术人员的参考书。 在计算机发展的历史上，没有哪一种程序设计语言像c语言这样应用如此广泛(C language book is written by the designers of brian w. kernighan and dennis m. ritchie write a description of the standard c language and the authority of the program design classic. Comprehensive and systematic about the c language of all the basic features and programming methods, including basic concepts, types and expressions, control flow, function and program structure, pointers and arrays, structures, input and output, unix system interface, the standard library and so on. Book about simple terms, with a typical example, user-friendly, practical, suitable as a computer professional or computer professional colleges of the c language materials can also be as engaged in computer-related hardware and software technology developed by staff reference. In the history of computer development, no programming language such as c language so widely used)

thinking.in.flexible.engineering 大道至简 向你讲述 软件开发中 的两个内容：做什么和为什么做(thinking.in.flexible.engineering Road to SR telling you about the software development of two elements : what to do and why to do)

说明：  johnson cook vumat code

说明：  python提取abaqus后处理指定集合的信息（位移和应力）(Python extracts the information (displacement and stress) of the specified set after ABAQUS processing)

The 3rd operational mode for the LDC

使用ANSYS求解系统在脉冲激励下的动态响应，利用APDL语言以命令流的方式实现。(system dynamic response in the pulse excitation is solved in the case of ANSYS runs the APDL language.)

1947年罗斯威尔飞碟坠毁事件相关报道 内容根据个人自述和会谈记录的提供者 Matilda O Donnell MacElroy （马蒂尔达·欧’丹奈尔·马克艾罗伊） （英文）编辑整理 Lawrence R. Spencer （劳伦斯·斯宾塞） 主体部分内容摘录、翻译、编辑 一个中国人 第 2(1947 Roswell UFO crash reports related to the contents of records under the Personal Statement and talks provider Matilda O' Donnell MacElroy (martir Daou ' 丹奈尔马克Yiluo Yi) (English) edited by Lawrence R. Spencer (Lawrence Spencer) of the main part of the extract, translation, editing a Chinese 2)