Abstract: Future communication systems are expected to employ high-gain, beam-steerable antenna arrays to track the dominant path in the channel to compensate for higher path loss and maintain the ...

Electron beam method enables high-yield graphdiyne synthesis in seconds under ambient conditions, offering a fast route to carbon-based catalytic materials. But it differs in a key way: its structure ...

A new method in electron microscopy enables sub-20-picometer targeting of individual atoms without prior exposure, opening the door to atom-specific analysis and control. (Nanowerk Spotlight) ...

Multiplayer titles are nothing new. In fact, they’re arguably the first video game type if you really think about it. The goal has always been the same. You pick up a game, you bring in a friend to ...

In plain warehouses next to Hobby Airport, Houston-based startup Quaise Energy is testing technology to try to drill deeper into the earth than ever before – without a drill bit ever touching rock at ...

Abstract: A satellite beam tracking method based on carrier signal detection and back propagation (BP) neural network correction for combined navigation errors is proposed to address the issue of ...

First, the payload requirements and problems faced by traditional multi-beam antenna are described. The user beam of the VHTS payload system mainly uses Ka-band multi-beam antenna for a large range of ...