Abstract Permanent magnet synchronous motors (PMSMs) have many advantages attributed to the structure of permanent magnet, which connects influences each type fault. However, diagnostic methods are not capable monitoring multitype faults with one index or method, due closed-loop control non-stationarity. There a few based on convolutional neural networks (CNNs) and vibration analysis; however, ...

Magnetic domains play a fundamental role in magnetization processes. However, unlike ferromagnets (FMs), the formation of antiferromagnets (AFMs) is poorly understood because they are not favored by magnetostatics and difficult to detect experimentally. In this paper, we create synthetic planar AFM with tunable lateral coupling between neighboring FM regions establish played magnetic disorder d...

The manipulation of antiferromagnetic order by means spin-orbit torques opens unprecedented opportunities to exploit the dynamics antiferromagnets in spintronic devices. In this work, we investigate current-induced switching magnetic octupole vector Weyl antiferromagnet Mn$_3$Sn as a function pulse shape, field, temperature, and time. We find that behavior can be either bistable or tristable de...

Hysteresis loops of Nd-Fe-B magnets with different surface roughness are measured in order to investigate the surface effect on nucleation for magnetization reversal. The roughness affects both coercivity and the demagnetization process. This behavior is considered to be caused by the 90° domain wall pinning of the line scratches.

70% of the patients affected by PSP are not correctly diagnosed in the first 2 to 3 years of the disease. I personally have followed three patients who at CT presented the features of PSP while none of them showed clinical signs definitively suggestive of the disease. This suggests that the CT findings could be present before the complete clinical manifestation of the syndrome, at least in a nu...

this paper considers the problem of stable limit cycles generating in a class of uncertain nonlinear systems which leads to stable oscillations in the system’s output.this is a wanted behavior in many practical engineering problems. for this purpose, first the equation of the desirable limit cycle is achieved according to shape, amplitude and frequency of the required output oscillations. then,...