IEEE

Estimation of Position and Shorted Turns Percentage of an Inter-Turn Short Circuit in Interior Permanent Magnet Synchronous Machines Based on a Current Observer and Stationary ...

Abstract: This paper presents a method to detect and diagnose an inter-turn short circuit in interior permanent magnet synchronous machines. The proposed method detects the inter-turn short circuit ...

A Family Found a Strange Metal Sphere in the Woods. It Started Moving on Its Own—Then the Navy Got Involved.

Some believe the Betz mystery sphere, a steel ball that a Florida family found on their property in 1974, is a piece of alien technology. Here’s the truth.
ccr-mag

New Post-Frame Building Design Manual Published

The National Frame Building Association (NFBA) has issued the second edition of its Post-Frame Building Design Manual. This guide, available in print as well as a digital download on the Post-Frame ...
Science Daily

Scientists capture a magnetic flip in 140 trillionths of a second

Scientists at the University of Tokyo have captured something never seen before: a frame-by-frame view of how electron spins ...
IEEE

Nonlinear Model for Halbach Array Axial Flux Permeant Magnet Motor in Stator and Rotor Reference Frames Based on Harmonic Modeling Technique

Abstract: This article presents nonlinear models based on the harmonic modeling (HM) technique for Halbach array AFPMM in Cartesian coordinate, where the stator winding is a dual three-phase winding.