PostgreSQL是以加州大学伯克利分校计算机系开发的对象关系型数据库管理系统,PostgreSQL是最初的伯克利代码的开源继承者。它支持大部分 SQL 标准并且提供了许多现代特性。 因为自由宽大的许可证,任何人都可以以任何目的免费使用、修改和分发PostgreSQL, 不管是私用、商用还是学术研究目的。
2021-01-28 03:03:28 11.48MB PostgreSQL ebook
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Perl 21天自学教程,分为3周来介绍Perl最基本语法,以及实例讲解,每周教程结束后,提供相关习题和答案来巩固本周的知识点
2021-01-28 02:23:30 1.91MB Perl Tutorial
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内含pdf 和epub两种格式电子书籍 MATLAB Deep Learning:With Machine Learning, Neural Networks and Artificial Intelligence
2020-03-04 03:11:27 4.38MB Matlab Deep Learning Phil
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There have been significant advances in the synthesis and physical realization of microwave filter networks over the last three decades. This book provides a coherent and readable description of system requirements and constraints for microwave filters, fundamental considerations in the theory and design of microwave filters, up-to-date modern synthesis techniques with examples and technology considerations in the choice of hardware
2020-01-03 11:41:23 22.7MB ebook
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The second edition of this well-known and highly regarded text can be used as the basis for a one- or two-semester undergraduate course in signals and linear systems theory and applications. Topics include basic signals and systems concepts, linear time-invariant (LTI) systems, Fourier representations of continuous-time and discrete-time signals, the CT and DT Fourier transforms, and time- and frequency-domain analysis methods. The author emphasizes applications of the theory through numerous examples in filtering, sampling, communications, and feedback. The parallel development of continuous-time and discrete-time frequency domain methods allows the reader to apply insights and intuition across the two domains. It also facilitates a deeper understanding of the material by bringing into focus the similarities and differences between the two domains. The text also includes introductory chapters on communication systems and control theory. This book assumes that you have a background in calculus as well as exposure to complex numbers and elementary differential equations. Because of its thoroughness and unhurried pace, this text is highly recommended for students and those interested in self-study.
2020-01-03 11:37:20 14.24MB Ebook
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Ebook - WIRELESS SENSOR NETWORKS A Networking Perspective
2019-12-21 22:26:14 2.37MB Wireless sensor network
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The_Zynq_Book_ebook_chinese中文版,xilinx公司官方出版,非常好,有用
2019-12-21 22:11:26 23.19MB ZynqBook
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无线通信/(美) Andreas F. Molisch著 田斌, 帖翊, 任光亮译
2019-12-21 21:45:59 14.4MB ebook
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Android Ebook电子书阅读器APP源码,好像以前发过类似的,这个从android社区载下来的,里面有注释,供学习参考。Android编程开发可参考的一个范例,希望对Andriod初学者有帮助。
2019-12-21 21:40:44 1.5MB Android源码-应用实例
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Fundamentals of Power Electronics 2nd CH1-CH5.rar,上传限制,分开传
2019-12-21 21:18:05 12.03MB Power Electronics ebook
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