100 years ago, ‘ghost ship’ sails baffled Einstein—now they’re making a comeback

The economic advantages of rotor sails vanished almost overnight, and with it the promising technology. A century later, however, as the shipping industry confronts volatile fuel costs and climate ...
搜狐

Li Auto Applies for Patent to Reduce Total Noise of Impeller Rotation: Will Boost Fan Sound Quality See a Breakthrough?

Shanghai Li Auto Technology Co., Ltd. applied for a patent titled "Impeller, Fan Unit, Boost Fan, Air Conditioning System, Thermal Management System, and Vehicle" in March 2025, with publication ...
IEEE

Estimation of motion parameters of rotating targets based on rotational Doppler effect

Abstract: Vortex electromagnetic waves exhibit unique detection capabilities when dealing with targets moving perpendicular to the radar line of sight, which are not achievable with conventional plane ...
ePHOTOzine

'Dose the minigun with rotating barrels out of wood machine gun rokr puzzle kit have sound' News

ePHOTOzine brings you a daily round up of all the latest photography news including camera news, exhibitions, events, special offers, industry news, digital photography news, announcements and ...
SciELO

Effects of the Rotating Arc Technique on the GMA Welding Process

Recent profusion of advanced GMAW process variants impairs understanding of the nature of each one, with the arc rotation technique among them. This paper’s objective is investigating influences of ...
IEEE

25 Loading Effect on Induction Motor Eccentricity Diagnostics Using Vibration and Motor Current

Abstract: Experimental Techniques, Rotating Machinery & Acoustics, Volume 8: Proceedings of the 33rd IMAC, A Conference and Exposition on Structural Dynamics, 2015, the eighth volume of ten from the ...