Alien Signals May Be Hiding in a Radio Band SETI Has Barely Explored

Archived radio observations could open new frequencies to SETI while showing that past searches covered millions more stars ...

Could alien signals be hiding on a different radio channel?

Astronomers searching for signs of extraterrestrial intelligence may have been missing alien signals in part of the radio spectrum that has not recently been explored.

How magnetic levitation lifts and propels high-speed maglev trains

Discover how magnetic levitation technology powers high-speed maglev trains, enabling frictionless travel and impressive ...

Aligned graphite particles unlock stable levitation above magnets, study finds

A diamagnetic substance is slightly repelled by magnetic fields. With a strong enough magnet, the diamagnetic force can ...
IEEE

FGAE-YOLO: A Frequency-Guided Attention Enhancement Network for Robust Object Perception in Complex Battlefield Environments

Abstract: Military object detection is a critical technology for achieving battlefield situational awareness. However, traditional detection methods suffer from representational limitations, leading ...
IEEE

CSFPR-RTDETR: Real-Time Small Object Detection Network for UAV Images Based on Cross-Spatial-Frequency Domain and Position Relation

Abstract: Small object detection in uncrewed aerial vehicle (UAV) images is one of the critical aspects for its widespread application. However, due to limited feature extraction for small objects and ...