Journey to the center of a quantized vortex: How microscopic mutual friction governs superfluid dissipation

Step inside the strange world of a superfluid, a liquid that can flow endlessly without friction, defying the common-sense ...
IEEE

Analysis of Carrier Overlap Modulation and Space Vector Modulation Equivalence in NPC Inverters

Abstract: Carrier overlapping pulsewidth modulation (COPWM) is proposed to address the level degradation issue in carrier-based pulsewidth modulation (CBPWM) at low modulation index. Due to its unique ...
IEEE

Mamba4D: Efficient 4D Point Cloud Video Understanding with Disentangled Spatial-Temporal State Space Models

Abstract: Point cloud videos can faithfully capture real-world spatial geometries and temporal dynamics, which are essential for enabling intelligent agents to understand the dynamically changing ...
Council on Foreign Relations

Happy Sixth Birthday to the U.S. Space Force!

The U.S. Space Force (USSF) turns six years old today. The youngest branch of the U.S. military was established on December 20, 2019, with the passage of the John S. McCain National Defense ...