In this paper, we investigate efficient hybrid beamforming (HBF) design for train-to-ground communications. First, we develop a two-stage HBF algorithm in blockage-free scenarios.

Still, Isar became the first in a new crop of European launch startups to launch a rocket theoretically capable of reaching orbit. Flush with cash ... Isar is leading in another metric, too. The ...

A redesigned sewer cleaning nozzle aims to solve the long-standing problem of "blown toilets," offering municipalities a more affordable, scalable way to improve community sanitation and reduce ...

NASA's Reactive Additive Manufacturing for the Fourth Industrial Revolution (RAMFIRE) project test-fired a 3D-printed engine nozzle at Marshall Space Flight Center in Alabama. See the test in real ...

Engineering a Cool Revolution: Shumate’s Hybrid-Dry Adiabatic Design Tackles AI-Era Density As AI drives data center density to new extremes, Shumate Engineering unveils a game-changing hybrid cooling ...

That means that although the hybrid Corvette's suspension is the same as the ZR1’s from a hardware perspective, it’s tuned slightly differently, which has had the effect of improving front-end grip.

Multimode hybrid electric vehicles (HEVs) have been widely applied due to its high efficiency and excellent overall performance. However, the introduction of multimode HEVs makes it difficult to ...

Researchers at Utah State University are working with NASA to develop a hybrid rocket motor that could help astronauts land on and take off from the moon in future Artemis missions.

Velo3D has signed a $4M, two-year Master Services Agreement with Vaya Space, a hybrid rocket company focused on space propulsion systems.