Abstract: In this paper, a low-cost K-band phased array antenna is designed for LEO satellite communication. The design reduces the number of T/R components by allowing multiple elements to share a ...

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Sam Altman, the chief executive of OpenAI, says that technological revolutions are driven by more than just technology. They are also driven, he argues, by new ways of paying for them. “There is ...

GoPro’s Max 2 is a much-anticipated camera that was originally due to make an appearance over a year ago. Was it worth the wait? On balance, Simon Wyndham thinks it was. When GoPro announced that it ...

A reliable circular saw is essential for everything from framing and decking to DIY home projects. When it’s cordless, powerful, and built by a trusted brand, it’s even better. It doesn’t matter if ...

Letter of Intent: Circular Health Limited to Enhance ECG Smart Ring with AI-Powered Signal Clarity with multi‑year, per‑user SaaS license targeting commercial launch by September 2025. Global growth ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

If you don’t have a cordless saw in your toolbox arsenal, you need to grab this deal on the DEWALT 20V MAX Circular Saw from Amazon before it’s gone. The DEWALT 20V MAX Circular Saw is now on sale for ...

给定一个长度为 n 的环形整数数组 nums ，返回 nums 的非空 子数组 的最大可能和 。 环形数组 意味着数组的末端将会与开头相连呈环状。形式上， nums[i] 的下一个元素是 nums[(i + 1) % n] ， nums[i] 的前一个元素是 nums[(i - 1 + n) % n] 。 子数组 最多只能包含固定 ...