I stopped guessing which AA batteries are dead - this charging station keeps them in check for me

I've been a fan of Olight flashlights for many years. Now I'm a fan of its new pro-grade battery charger. Here's why.
IEEE

Multi-Source DoA Estimation of EM Waves Impinging Spherical Antenna Array With Unknown Mutual Coupling Using Relative Signal Pressure Based Multiple Signal Classification Approach

Abstract:!Spherical antenna array (SAA) is a configuration that scans almost all the radiation sphere with constant directivity. It finds applications in spacecraft and satellite communication.
IEEE

Cryogenic C-Band Hybrid MMIC Low-Noise Amplifier Using HTS Input Matching Network Assisted by Gray Wolf Optimizer

Abstract: In this article, a cryogenic 4–8-GHz hybrid monolithic microwave integrated circuit (MMIC) low-noise amplifier (LNA), enhanced with an external high-temperature superconductor (HTS) ...
archive

Almost adulting : all you need to know to get it together (sort of)

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