Montavilla Sewing Centers hit with repeated HVAC system thefts

A Southeast Portland sewing shop is recovering from a major theft that destroyed its HVAC system Friday morning, the latest ...
IEEE

Cross-Domain Compound Fault Diagnosis of Machine-Level Motors via Time–Frequency Self-Contrastive Learning

Abstract: Intelligent fault diagnosis of industrial motors under different operating conditions is a valuable and challenging topic. Compound faults are inevitable to occur under different operating ...
IEEE

ESO-Based Direct Model-Free Adaptive Predictive Compensation Control for Permanent Magnet Synchronous Motors

Abstract: For a class of permanent magnet synchronous motors (PMSM) characterized by strong coupling, significant nonlinearity, load uncertainties, and external disturbances, this paper investigates ...