Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

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《唐老鸭漫游数学奇境》内容简介： 《唐老鸭的数学奇幻之旅》是一部充满魔力与智慧的儿童数学教育卡通动画。在这个奇幻的数学世界中，唐老鸭化身为一位勇敢的探险家，带领着小观众们一同踏上寻找数学奥秘的冒险之旅。 每一集都充满了趣味横生的数学 ...

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Learn how to perform three simple but impressive magic tricks using cards, pencils, and rubber bands. This beginner-friendly tutorial breaks down each trick step-by-step so you can start performing ...

In 1950, Disney released an educational short titled Donald in Mathmagic Land, a 27-minute animated featurette in which the infamous belligerent duck with a speech impediment visits a surreal world ...

Git isn’t hard to learn. Moreover, with a Git GUI such as Atlassian’s Sourcetree, and a SaaS code repository such as Bitbucket, mastery of the industry’s most powerful version control tools is within ...

Windows 11 is available for download worldwide. Microsoft has released it as a free upgrade, which means you do not need to pay to upgrade your computer to Windows 11. It is available for free ...

Synthetic Aperture Radar (SAR) has been widely used for Earth remote sensing for more than 30 years. It provides high-resolution, day-and-night and weather-independent images for a multitude of ...

⚠️ This repository is archived: The content in this repository was moved to other locations. If you have issues or PR, please submit them to their new location. In this repository, we've put together ...