1 Introduction 2 Patterns for Cleaner Python 3 Effective Functions 4 Classes & OOP 5 Common Data Structures in Python 6 Looping & Iteration 7 Dictionary Tricks 8 Pythonic Productivity Techniques 9 Closing Thoughts

Lowe的论文《Distinctive Image Features from Scale-Invariant Keypoints》翻译

最新的蓝牙规范V5.2。所有的开发者都必须遵守这个规范，这里面包括蓝牙核心规范的部分，开发者需要认真阅读学习。

Core Java® has long been recognized as the leading, no-nonsense tutorial and reference for experienced programmers who want to write robust Java code for real-world applications. Now, Core Java®, Volume II—Advanced Features, Tenth Edition, has been extensively updated to reflect the most eagerly awaited and innovative version of Java in years: Java SE 8. Rewritten and reorganized to illuminate powerful new Java features, idioms, and best practices for enterprise and desktop development, it contains hundreds of up-to-date example programs—all carefully crafted for easy understanding and practical applicability. Writing for serious programmers solving real-world problems, Cay Horstmann deepens your understanding of today’s Java language and library. In this second of two updated volumes, he offers in-depth coverage of advanced topics including the new Streams API and date/time/calendar library, advanced Swing, security, code processing, and more. This guide will help you •Use the new Streams library to process collections more flexibly and efficiently •Efficiently access files and directories, read/write binary or text data, and serialize objects •Work with Java SE 8’s regular expression package •Make the most of XML in Java: parsing, validation, XPath, document generation, XSL, and more •Efficiently connect Java programs to network services •Program databases with JDBC 4.2 •Elegantly overcome date/time programming complexities with the new java.time API •Write internationalized programs with localized dates/times, numbers, text, and GUIs •Process code with the scripting API, compiler API, and annotation processors •Enforce security via class loaders, bytecode verification, security managers, permissions, user authentication, digital signatures, code signing, and encryption •Master advanced Swing components for lists, tables, trees, text, and progress indicators •Produce high-quality drawings with the Java 2D API •Use JNI native methods to leverage code in o

My first encounter with the Java programming language was during a one-week Java training session in 1997. I did not get a chance to use Java in a project until 1999. I read two Java books and took a Java 2 programmer certification examination. I did very well on the test, scoring 95 percent. The three questions that I missed on the test made me realize that the books that I had read did not adequately cover details of all the topics. I made up my mind to write a book on the Java programming language. So, I formulated a plan to cover most of the topics that a Java developer needs to use Java effectively in a project, as well as to become certified. I initially planned to cover all essential topics in Java in 700 to 800 pages. As I progressed, I realized that a book covering most of the Java topics in detail could not be written in 700 to 800 pages. One chapter alone that covered data types, operators, and statements spanned 90 pages. I was then faced with the question, “Should I shorten the content of the book or include all the details that I think a Java developer needs?” I opted for including all the details in the book, rather than shortening its content to maintain the original number of pages. It has never been my intent to make lots of money from this book. I was never in a hurry to finish this book because that rush could have compromised the quality and coverage. In short, I wrote this book to help the Java community understand and use the Java programming language effectively, without having to read many books on the same subject. I wrote this book with the plan that it would be a comprehensive one-stop reference for everyone who wants to learn and grasp the intricacies of the Java programming language. One of my high school teachers used to tell us that if one wanted to understand a building, one must first understand the bricks, steel, and mortar that make up the building. The same logic applies to most of the things that we want to unde

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features

XILINX ISE12 License 本人亲测部分可重构实验可用，含PR features，即部分重配置（PR）特性license ,之前的License都不全，基本功能都可用，但是在做PR时发现用不了，于是在官方论坛（http://forums.xilinx.com/t5/PlanAhead/Unable-to-set-partition-in-12-3-UG743-Partial-reconfiguration/td-p/108111）中才发现，license权限不够，费好大功夫才得到！！！

本文提出了一种新的基于联合稀疏表示的图像融合方法。 由于传感器观察到相关现象，因此源图像有望具有共同的和创新的特征。 我们使用稀疏系数作为图像特征。 通过联合稀疏表示，用公共稀疏系数和创新稀疏系数表示源图像。 因此，稀疏系数由创新系数的平均绝对值加权。 此外，由于稀疏表示在图像去噪算法的开发中已经取得了很大的成功，因此我们的方法可以同时执行图像去噪和融合，而图像会受到加性噪声的破坏。 实验结果表明，该方法在多个指标以及视觉质量上均优于其他方法。